Toshiba e-studio 2555c User manual

SERVICEMANUAL
MULTIFUNCTIONAL DIGITAL COLOR SYSTEMS
e-STUDIO2555C/3055C/3555C/
4555C/5055C
e-STUDIO2555CSE/3055CSE/
3555CSE/4555CSE/5055CSE
Model: FC-2555C/3055C/3555C/4555C/5055C
Publish Date: December 2012
File No. SME120065B0
R121021M7102-TTEC
Ver02 F_2013-08

Trademarks
• The official name of Windows 8 is Microsoft Windows 8 Operating System.
• The official name of Windows 7 is Microsoft Windows 7 Operating System.
• The official name of Windows Vista is Microsoft Windows Vista Operating System.
• The official name of Windows XP is Microsoft Windows XP Operating System.
• Microsoft, Windows, Windows NT, Windows Vista and the brand names and product names of other
Microsoft products are trademarks or registered trademarks of Microsoft Corporation in the U.S.
and/or other countries.
• Apple, AppleTalk, Macintosh, and Mac are trademarks of Apple Computer, Inc. in the U.S. and other
countries.
• PostScript is a trademark of Adobe Systems Incorporated.
• NOVELL, NetWare, and NDS are trademarks or registered trademarks of Novell, Inc.
• FLOIL is a registered trademark of Kanto Kasei Ltd. CORPORATION.
• Molykote is a registered trademark of Dow Corning Corporation.
• Kapton is a registered trademark of E. I. du Pont de Nemours and Company.
• TopAccess is a trademark of Toshiba Tec Corporation.
• Other company names and product names in this manual are the trademarks of their respective
companies.
© 2012-2013 TOSHIBA TEC CORPORATION All rights reserved
Under the copyright laws, this manual cannot be reproduced in any form without prior written permission
of TOSHIBA TEC CORPORATION.

GENERAL PRECAUTIONS REGARDING THE SERVICE FOR
THIS EQUIPMENT
The installation and service shall be done by a qualified service
technician.
1. Transportation/Installation
- When transporting/installing the equipment, employ two or more persons and be sure to hold the
positions as shown in the figure.
The equipment is quite heavy and weighs approximately 75.5 kg (166.4 lb.), therefore pay full
attention when handling it.
- Be sure not to hold the movable parts or units (e.g. the control panel, ADU or RADF) when
transporting the equipment.
- Be sure to use a dedicated outlet with AC 110V/15A, 120V/12A, 220-240V/8A for its power
source.
- The equipment must be grounded for safety.
- Select a suitable place for installation. Avoid excessive heat, high humidity, dust, vibration and
direct sunlight.
- Provide proper ventilation since the equipment emits a slight amount of ozone.
- To insure adequate working space for the copying operation, keep a minimum clearance of 30
cm (11.8”) on the left, 80 cm (32”) on the right and 20 cm (7.9”) on the rear.
- The equipment shall be installed near the socket outlet and shall be accessible.
- Be sure to fix and plug in the power cable securely after the installation so that no one trips over
it.
- If the unpacking place and where the equipment is to be installed differ, perform image quality
adjustment (automatic gamma adjustment) according to the temperature and humidity of the
place of installation and the paper to be used.

2. General Precautions at Service
- Be sure to turn the power OFF and unplug the power cable during service (except for the service
should be done with the power turned ON).
- Unplug the power cable and clean the area around the prongs of the plug and socket outlet once
a year or more. A fire may occur when dust lies on this area.
- When the parts are disassembled, reassembly is the reverse of disassembly unless otherwise
noted in this manual or other related documents. Be careful not to install small parts such as
screws, washers, pins, E-rings, star washers, harnesses in the wrong places.
- Basically, the equipment should not be operated with any parts removed or disassembled.
- The PC board must be stored in an anti-electrostatic bag and handled carefully using a antistatic
wrist strap since the ICs on it may be damaged due to static electricity.
- Be sure not to touch high-temperature sections such as the fuser unit, damp heater and areas
around them.
- Be sure not to touch high-voltage sections such as the chargers, transfer belt, 2nd transfer roller,
developer, high-voltage transformer, and power supply unit. Especially, the board of these
components should not be touched since the electric charge may remain in the capacitors, etc.
on them even after the power is turned OFF.
- Make sure that the equipment will not operate before touching potentially dangerous places (e.g.
rotating/operating sections such as gears, belts pulleys, and fans).
- Be careful when removing the covers since there might be the parts with very sharp edges
underneath.
- When servicing the equipment with the power turned ON, be sure not to touch live sections and
rotating/operating sections.
- Use designated jigs and tools.
- Use recommended measuring instruments or equivalents.
- Return the equipment to the original state and check the operation when the service is finished.
- Be very careful to treat the touch panel gently and never hit it. Breaking the surface could cause
malfunctions.
3. General operations
- Check the procedures and perform them as described in the Service Manual.
- Make sure you do not lose your balance.
- Avoid exposure to your skin and wear protective gloves as needed.
4. Important Service Parts for Safety
- The breaker, door switch, fuse, thermostat, thermofuse, thermistor, batteries, IC-RAMs including
lithium batteries, etc. are particularly important for safety. Be sure to handle/install them properly.
If these parts are short-circuited and their functions become ineffective, they may result in fatal
accidents such as a burnout. Avoid short-circuiting and do not use parts not recommended by
Toshiba TEC Corporation.
Caution: Before using the antistatic wrist strap, unplug the power cable of the equipment and
make sure that there are no charged objects which are not insulated in the vicinity.

5. Cautionary Labels
- During servicing, be sure to check the rating plate and cautionary labels to see if there is any dirt
on their surface and if they are properly stuck to the equipment.
[1] Identification label
[2] Warning for high temperature area (fuser unit)
[3] Warning for high temperature area
[4] Machine serial number label
[5] Warning for high temperature area
[6] Warning for high temperature area
6. Disposal of the Equipment, Supplies, Packing Materials, Used Batteries and IC-RAMs
- Regarding the recovery and disposal of the equipment, supplies, packing materials, used
batteries and IC-RAMs including lithium batteries, follow the relevant local regulations or rules.
Caution:
Dispose of used batteries and IC-RAMs including lithium batteries according to this manual.
Attention:
Se débarrasser de batteries et IC-RAMs usés y compris les batteries en lithium selon ce manuel.
Vorsicht:
Entsorgung der gebrauchten Batterien und IC-RAMs (inclusive der Lithium-Batterie) nach diesem
Handbuch.
[4]
[5]
[1]
[2]
[3]
[6]

ALLEGEMEINE SICHERHEITSMASSNAHMEN IN BEZUG
AUF DIE WARTUNG
Die Installation und die Wartung sind von einem qualifizierten Service-
Techniker durchzuführen.
1. Transport/Installation
- Zum Transportieren/Installieren des Gerätes werden 2 Personen benötigt. Nur an den in der
Abbildung gezeigten Stellen tragen.
Das Gerät ist sehr schwer und wiegt etwa 75.5 kg; deshalb muss bei der Handhabung des
Geräts besonders aufgepasst werden.
- Beim Transportieren des Geräts nicht an den beweglichen Teilen oder Einheiten (z.B. das
Bedienungsfeld, die Duplexeinheit oder die automatische Dokumentenzuführung) halten.
- Eine spezielle Steckdose mit Stromversorgung von AC 110V/15A, 120V/12A, 220-240V/8A als
Stromquelle verwenden.
- Das Gerät ist aus Sicherheitsgründen zu erden.
- Einen geeigneten Standort für die Installation wählen. Standorte mit zuviel Hitze, hoher
Luftfeuchtigkeit, Staub, Vibrieren und direkter Sonneneinstrahlung sind zu vermeiden.
- Für ausreichende Belüftung sorgen, da das Gerät etwas Ozon abgibt.
- Um einen optimalen Kopierbetrieb zu gewährleisten, muss ein Abstand von mindestens 80 cm
links, 80 cm rechts und 20 cm dahinter eingehalten werden.
- Das Gerät ist in der Nähe der Steckdose zu installieren; diese muss leicht zu erreichen sein.
- Nach der Installation muss das Netzkabel richtig hineingesteckt und befestigt werden, damit
niemand darüber stolpern kann.
- Falls der Auspackungsstandort und der Installationsstandort des Geräts verschieden sind, die
Bildqualitätsjustierung (automatische Gammajustierung) je nach der Temperatur und
Luftfeuchtigkeit des Installationsstandorts und der Papiersorte, die verwendet wird, durchführen.

2. Allgemeine Sicherheitsmassnahmen in bezug auf die Wartung
- Während der Wartung das Gerät ausschalten und das Netzkabel herausziehen (ausser Wartung,
die bei einem eingeschalteten Gerät, durchgeführt werden muss).
- Das Netzkabel herausziehen und den Bereich um die Steckerpole und die Steckdose die
Umgebung in der Nähe von den Steckerzacken und der Steckdose wenigstens einmal im Jahr
reinigen. Wenn Staub sich in dieser Gegend ansammelt, kann dies ein Feuer verursachen.
- Wenn die Teile auseinandergenommen werden, wenn nicht anders in diesem Handbuch usw
erklärt, ist das Zusammenbauen in umgekehrter Reihenfolge durchzuführen. Aufpassen, dass
kleine Teile wie Schrauben, Dichtungsringe, Bolzen, E-Ringe, Stern-Dichtungsringe,
Kabelbäume nicht an den verkehrten Stellen eingebaut werden.
- Grundsätzlich darf das Gerät mit enfernten oder auseinandergenommenen Teilen nicht in
Betrieb genommen werden.
- Das PC-Board muss in einer Anti-elektrostatischen Hülle gelagert werden. Nur Mit einer
Manschette bei Betätigung eines Armbandes anfassen, sonst könnte es sein, dass die
integrierten Schaltkreise durch statische Elektrizität beschädigt werden.
- Auf keinen Fall Hochtemperaturbereiche, wie die Fixiereinheit, die Heizquelle und die
umliegenden Bereiche, berühren.
- Auf keinen Fall Hochspannungsbereiche, wie die Ladeeinheiten, das Transferband, die zweite
Transferwalze, die Entwicklereinheit, den Hochspannungstransformator und das Netzgerät,
berühren. Insbesondere sollten die Platinen dieser Komponenten nicht berührt werden, da die
Kondensatoren usw. auch nach dem Ausschalten des Geräts noch elektrisch geladen sein
können.
- Vor dem Berühren potenziell gefährlicher Bereiche (z. B. drehbare oder betriebsrelevante
Bereiche, wie Zahnräder, Riemen, Riemenscheiben und Lüfter) sicherstellen, dass das Gerät
sich nicht bedienen lässt.
- Beim Entfernen von Abdeckungen vorsichtig vorgehen, da sich darunter scharfkantige
Komponenten befinden können.
- Bei Wartungsarbeiten am eingeschalteten Gerät dürfen keine unter Strom stehenden, drehbaren
oder betriebsrelevanten Bereiche berührt werden.
- Ausschließlich vorgesehene Werkzeuge und Hilfsmittel verwenden.
- Empfohlene oder gleichwertige Messgeräte verwenden.
- Nach Abschluss der Wartungsarbeiten das Gerät in den ursprünglichen Zustand zurück
versetzen und den einwandfreien Betrieb überprüfen.
- Das berührungsempfindliche Bedienungsfeld stets vorsichtig handhaben und keinen Stößen
aussetzen. Wenn die Oberfläche beschädigt wird, kann dies zu Funktionsstörungen führen.
3. Allgemeine Sicherheïtsmassnahmen
- Die Verfahren sind zu überprüfen und wie im Wartungshandbuch beschrieben durchzuführen.
- Vorsichtig, dass Sie nicht umfallen.
- Um Aussetzung zur Haut zur vermeiden, tragen Sie wenn nötig Schutzhandschuhe.
4. Sicherheitsrelevante Wartungsteile
- Der Leistungsschutzschalter, der Türschalter, die Sicherung, der Thermostat, die
Thermosicherung, der Thermistor, die IC-RAMs einschließlich der Lithiumakkus usw. sind
besonders sicherheitsrelevant. Sie müssen unbedingt korrekt gehandhabt und installiert werden.
Wenn diese Teile kurzgeschlossen und funktionsunfähig werden, kann dies zu
schwerwiegenden Schäden, wie einem Abbrand, führen. Kurzschlüsse sind zu vermeiden, und
es sind ausschließlich Teile zu verwenden, die von der Toshiba TEC Corporation empfohlen sind.
Vorsicht: Vor Benutzung der Manschette der Betätigung des Armbandes, das Netzkabel des
Gerätes herausziehen und prüfen, dass es in der Nähe keine geladenen
Gegenstände, die nicht isoliert sind, gibt.

5. Warnetiketten
- Im Rahmen der Wartung unbedingt das Leistungsschild und die Etiketten mit Warnhinweisen
überprüfen [z. B. „Unplug the power cable during service“ („Netzkabel vor Beginn der
Wartungsarbeiten abziehen“), „CAUTION. HOT“ („VORSICHT, HEISS“), „CAUTION. HIGH
VOLTAGE“ („VORSICHT, HOCHSPANNUNG“), „CAUTION. LASER BEAM“ („VORSICHT,
LASER“) usw.], um sicherzustellen, dass sie nicht verschmutzt sind und korrekt am Gerät
angebracht sind.
6. Entsorgung des Geräts, der Verbrauchs- und Verpackungsmaterialien, alter Akkus und IC-RAMs
- In Bezug auf die Entsorgung und Wiederverwertung des Geräts, der Verbrauchs- und
Verpackungsmaterialien, alter Akkus und IC-RAMs, einschließlich Lithiumakkus, sind die
einschlägigen nationalen oder regionalen Vorschriften zu befolgen.
Caution:
Dispose of used batteries and IC-RAMs including lithium batteries according to this manual.
Attention:
Se débarrasser de batteries et IC-RAMs usés y compris les batteries en lithium selon ce manuel.
Vorsicht:
Entsorgung der gebrauchten Batterien und IC-RAMs (inclusive der Lithium-Batterie) nach diesem
Handbuch.

© 2012-2013 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO2555C/3055C/3555C/4555C/5055C
CONTENTS
1
CONTENTS
1. FEATURE......................................................................................................................1-1
1.1 Main Feature of this equipment.........................................................................................1-1
2. SPECIFICATIONS/ACCESSORIES/OPTIONS/SUPPLIES .........................................2-1
2.1 Specifications....................................................................................................................2-1
2.1.1 General..............................................................................................................2-1
2.1.2 Copy ..................................................................................................................2-4
2.1.3 Print ...................................................................................................................2-9
2.1.4 Scan...................................................................................................................2-9
2.1.5 Internet Fax......................................................................................................2-10
2.1.6 HDD Memory Map...........................................................................................2-11
2.1.7 Network Fax (Option).......................................................................................2-12
2.2 Accessories.....................................................................................................................2-13
2.3 System List......................................................................................................................2-14
2.4 Supplies ..........................................................................................................................2-16
3. OUTLINE OF THE MACHINE.......................................................................................3-1
3.1 Sectional View...................................................................................................................3-1
3.1.1 Front side...........................................................................................................3-1
3.1.2 Rear side ...........................................................................................................3-3
3.2 Electric Parts Layout.........................................................................................................3-5
3.3 Symbols and Functions of Various Components............................................................3-15
3.3.1 Motors, fans.....................................................................................................3-15
3.3.2 Sensors and switches......................................................................................3-16
3.3.3 Electromagnetic spring clutches......................................................................3-19
3.3.4 Solenoids.........................................................................................................3-19
3.3.5 PC boards........................................................................................................3-19
3.3.6 Lamps, LEDs, heaters, and coil.......................................................................3-20
3.3.7 Thermistors, thermostats.................................................................................3-21
3.3.8 Others..............................................................................................................3-21
3.4 Copy Process..................................................................................................................3-22
3.5 Comparison with e-STUDIO2050C/2051C/2550C/2551C..............................................3-23
3.6 General Operation...........................................................................................................3-25
3.6.1 Overview of Operation.....................................................................................3-25
3.6.2 Description of Operation..................................................................................3-26
3.6.3 Detection of Abnormality..................................................................................3-30
3.6.4 Hibernation function.........................................................................................3-38
3.7 Control Panel ..................................................................................................................3-39
3.7.1 General Description.........................................................................................3-39
3.7.2 Description of Operation..................................................................................3-40
3.8 Scanner...........................................................................................................................3-41
3.8.1 General Description.........................................................................................3-41
3.8.2 Construction.....................................................................................................3-42
3.8.3 Functions .........................................................................................................3-43
3.8.4 Description of Operation..................................................................................3-45
3.8.5 Process of detection of original size ................................................................3-46
3.9 Writing Section................................................................................................................3-48
3.9.1 General Description.........................................................................................3-48
3.9.2 General description of LED print head.............................................................3-49
3.9.3 LED print head lifting mechanism....................................................................3-50
3.10 Driving Section................................................................................................................3-51
3.10.1 Drum TBU drive unit ........................................................................................3-52
3.10.2 Development drive unit/Paper feeding drive unit.............................................3-53
3.10.3 Monochrome/color switching mechanism........................................................3-54
3.11 Paper Feeding System....................................................................................................3-55
3.11.1 General Descriptions .......................................................................................3-55

e-STUDIO2555C/3055C/3555C/4555C/5055C © 2012-2013 TOSHIBA TEC CORPORATION All rights reserved
CONTENTS
2
3.11.2 Composition.....................................................................................................3-56
3.11.3 Functions .........................................................................................................3-57
3.11.4 Description of Operation..................................................................................3-58
3.12 Process Unit Related Section .........................................................................................3-63
3.12.1 General description..........................................................................................3-63
3.12.2 Composition.....................................................................................................3-65
3.12.3 Functions .........................................................................................................3-66
3.12.4 Drum driving sleep mode.................................................................................3-68
3.13 Developer Unit ................................................................................................................3-69
3.13.1 General Description.........................................................................................3-69
3.13.2 Composition.....................................................................................................3-70
3.13.3 Functions .........................................................................................................3-71
3.13.4 Functions of the toner cartridge PC board (CTRG) .........................................3-72
3.13.5 Waste toner box...............................................................................................3-73
3.14 Transfer Unit ...................................................................................................................3-74
3.14.1 General Descriptions .......................................................................................3-74
3.14.2 Composition.....................................................................................................3-75
3.15 Image Quality Control .....................................................................................................3-76
3.15.1 General Description.........................................................................................3-76
3.16 Fuser unit / Paper exit section.........................................................................................3-77
3.16.1 General Description.........................................................................................3-77
3.16.2 Composition.....................................................................................................3-79
3.16.3 Electric Circuit Description...............................................................................3-80
3.17 Paper exit section/reverse section..................................................................................3-84
3.17.1 General Description.........................................................................................3-84
3.17.2 Functions .........................................................................................................3-85
3.17.3 Reverse Motor Drive........................................................................................3-86
3.18 Automatic Duplexing Unit (ADU).....................................................................................3-87
3.18.1 General Description.........................................................................................3-87
3.18.2 Composition.....................................................................................................3-88
3.18.3 Drive of ADU....................................................................................................3-89
3.18.4 Description of Operations ................................................................................3-90
3.19 Power Supply Unit...........................................................................................................3-91
3.19.1 General description..........................................................................................3-91
3.19.2 Functions.........................................................................................................3-91
3.19.3 Operation of DC Output Circuits......................................................................3-92
3.19.4 Output Channel................................................................................................3-94
3.19.5 Fuse.................................................................................................................3-95
4. DISASSEMBLY AND REPLACEMENT........................................................................4-1
4.1 Covers...............................................................................................................................4-1
4.1.1 Front cover.........................................................................................................4-1
4.1.2 Left cover...........................................................................................................4-1
4.1.3 Receiving tray....................................................................................................4-2
4.1.4 Tray rear cover ..................................................................................................4-2
4.1.5 Left top cover.....................................................................................................4-2
4.1.6 Left rear cover....................................................................................................4-3
4.1.7 Rear left cover ...................................................................................................4-3
4.1.8 Right top cover...................................................................................................4-3
4.1.9 Right front cover ................................................................................................4-4
4.1.10 Right rear cover .................................................................................................4-4
4.1.11 Front top cover...................................................................................................4-4
4.1.12 Front right cover.................................................................................................4-5
4.1.13 Rear top cover ...................................................................................................4-5
4.1.14 Top rear cover ...................................................................................................4-5
4.1.15 Rear cover .........................................................................................................4-6
4.1.16 Front cover switch (SW1) ..................................................................................4-6
4.1.17 Front cover interlock switch (SW2)....................................................................4-7
4.2 Control Panel ....................................................................................................................4-8

© 2012-2013 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO2555C/3055C/3555C/4555C/5055C
CONTENTS
3
4.2.1 Control panel unit...............................................................................................4-8
4.2.2 KEY board .........................................................................................................4-9
4.2.3 DSP board .........................................................................................................4-9
4.2.4 Touch panel.....................................................................................................4-10
4.3 Scanner Unit ...................................................................................................................4-12
4.3.1 Original glass...................................................................................................4-12
4.3.2 Lens cover.......................................................................................................4-12
4.3.3 Automatic original detection sensor-1, -2 (S24, S25) ......................................4-13
4.3.4 Lens unit/CCD driving PC board......................................................................4-13
4.3.5 Carriage home position sensor (S23)..............................................................4-15
4.3.6 Exposure lamp (EXP)......................................................................................4-15
4.3.7 Scan motor (M1)..............................................................................................4-16
4.3.8 Platen sensor-1, -2 (S21, S22)........................................................................4-17
4.3.9 Carriage-1........................................................................................................4-18
4.3.10 Carriage wire, carriage-2 .................................................................................4-19
4.3.11 Scanner damp heater (DH1)............................................................................4-23
4.4 LED Unit..........................................................................................................................4-24
4.4.1 LED Tray..........................................................................................................4-24
4.4.2 Discharge LED.................................................................................................4-27
4.4.3 LED printer head..............................................................................................4-28
4.4.4 LED spacer......................................................................................................4-35
4.5 Paper Feeding System....................................................................................................4-36
4.5.1 Bypass unit ......................................................................................................4-36
4.5.2 Bypass feed roller............................................................................................4-39
4.5.3 Bypass separation roller ..................................................................................4-40
4.5.4 Paper width detection PC board (SFB board) (S17)........................................4-41
4.5.5 Bypass feed sensor (S16) ...............................................................................4-42
4.5.6 Side cover switch (SW5)..................................................................................4-43
4.5.7 Registration sensor (S19), Feed sensor (S20) ................................................4-43
4.5.8 Registration roller (Plastic)...............................................................................4-45
4.5.9 Registration roller (Rubber) .............................................................................4-46
4.5.10 Jam access cover............................................................................................4-48
4.5.11 Transport roller ................................................................................................4-48
4.5.12 Jam access cover opening/closing switch (SW20)..........................................4-50
4.5.13 2nd drawer paper feed sensor (S32)...............................................................4-51
4.5.14 1st drawer paper feed unit...............................................................................4-52
4.5.15 1st drawer separation roller guide ...................................................................4-52
4.5.16 2nd drawer paper feed unit..............................................................................4-53
4.5.17 2nd drawer separation roller guide..................................................................4-54
4.5.18 1st drawer paper feed roller, separation roller, and pick-up roller ...................4-55
4.5.19 2nd drawer paper feed roller, separation roller, and pick-up roller ..................4-57
4.5.20 1st drawer detection switch (SW8) ..................................................................4-58
4.5.21 2nd drawer detection switch (SW19)...............................................................4-59
4.5.22 Tray-up motor unit ...........................................................................................4-59
4.5.23 Tray-up motor (M15)........................................................................................4-60
4.5.24 1st drawer paper remaining sensor (S30) .......................................................4-60
4.5.25 2nd drawer paper remaining sensor (S33) ......................................................4-61
4.5.26 1st drawer empty sensor (S5) and 1st drawer tray-up sensor (S31)...............4-62
4.5.27 2nd drawer empty sensor (S34) and 2nd drawer tray-up sensor (S35)...........4-64
4.5.28 1st drawer paper width detection switch (SW6)
and 1st drawer paper length detection switch (SW7) ......................................4-65
4.5.29 2nd drawer paper width detection switch (SW17)
and 2nd drawer paper length detection switch (SW18)...................................4-66
4.5.30 1st drawer feed clutch (CLT1) .........................................................................4-66
4.5.31 2nd drawer feed clutch (CLT4) ........................................................................4-68
4.5.32 Transport clutch (H) (CLT5).............................................................................4-69
4.5.33 Transport clutch (L) (CLT6) .............................................................................4-70
4.5.34 Registration motor (M14).................................................................................4-70

e-STUDIO2555C/3055C/3555C/4555C/5055C © 2012-2013 TOSHIBA TEC CORPORATION All rights reserved
CONTENTS
4
4.5.35 Paper feed drive unit........................................................................................4-71
4.5.36 Paper feed drive gear......................................................................................4-72
4.6 Developer Unit, Cleaner..................................................................................................4-76
4.6.1 Waste toner box...............................................................................................4-76
4.6.2 Developer unit..................................................................................................4-76
4.6.3 Developer material...........................................................................................4-77
4.6.4 Doctor blade ....................................................................................................4-83
4.6.5 Side seal..........................................................................................................4-83
4.6.6 Auto-toner sensor (S1, S2, S3, S4) .................................................................4-84
4.6.7 Development sleeve ........................................................................................4-84
4.6.8 Mixer................................................................................................................4-86
4.6.9 Cleaner unit .....................................................................................................4-87
4.6.10 Main charger....................................................................................................4-88
4.6.11 Drum and bushing ...........................................................................................4-90
4.6.12 Drum cleaning blade........................................................................................4-92
4.6.13 Side seal..........................................................................................................4-93
4.6.14 Waste toner unit gear ......................................................................................4-93
4.6.15 Main charger grid.............................................................................................4-94
4.6.16 Main charger cleaner.......................................................................................4-95
4.6.17 Needle electrode..............................................................................................4-96
4.6.18 Drum old/new detection switches (SW9, SW10, SW11, SW12)
and Developer unit old/new detection switches (SW13, SW14, SW15, SW16)4-96
4.6.19 Drum thermistor-1 (THM3).............................................................................4-100
4.6.20 Drum thermistor-2 (THM4).............................................................................4-100
4.6.21 Temperature/humidity sensor (S10) ..............................................................4-101
4.6.22 Waste toner paddle rotation detection sensor (S9) .......................................4-101
4.6.23 Waste toner amount detection sensor (S36) .................................................4-102
4.6.24 Waste toner paddle motor (M7).....................................................................4-102
4.6.25 Drum switching unit .......................................................................................4-103
4.6.26 Drum switching detection sensor (S11).........................................................4-104
4.6.27 Mono/color switching motor (M3)...................................................................4-105
4.6.28 Paper feeding/developer unit drive motor (M2) .............................................4-106
4.6.29 Developer drive unit.......................................................................................4-107
4.6.30 Toner motor assembly...................................................................................4-110
4.6.31 Toner motor (M8, M9, M10, M11)..................................................................4-111
4.6.32 Ozone filter ....................................................................................................4-112
4.6.33 Ozone exhaust fan (F2).................................................................................4-113
4.6.34 SYS cooling fan (F1)......................................................................................4-115
4.6.35 Suctioning fan (F3) ........................................................................................4-115
4.6.36 Power supply unit cooling fan (F8) ................................................................4-116
4.6.37 Drum drive gear ............................................................................................4-116
4.6.38 Developer drive gear ....................................................................................4-120
4.6.39 Main power switch (SW4)..............................................................................4-122
4.6.40 Developer unit cooling fan (F5)......................................................................4-122
4.6.41 Drum damp heater (Right side)(DH2)............................................................4-124
4.6.42 Drum damp heater (Left side)(DH3) ..............................................................4-125
4.7 Transfer Units (TBU, TRU)............................................................................................4-127
4.7.1 Transfer belt cleaning unit .............................................................................4-127
4.7.2 Transfer belt cleaning blade/blade seal/recovery blade ................................4-127
4.7.3 Transfer belt unit (TBU) .................................................................................4-130
4.7.4 Transfer belt ..................................................................................................4-131
4.7.5 Cleaner unit facing roller................................................................................4-134
4.7.6 Drive roller .....................................................................................................4-135
4.7.7 1st transfer roller............................................................................................4-135
4.7.8 2nd transfer roller...........................................................................................4-136
4.7.9 2nd transfer roller unit (TRU).........................................................................4-137
4.7.10 Paper clinging detection sensor (S18)...........................................................4-138
4.7.11 1st transfer contact/release clutch (CLT2).....................................................4-138

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CONTENTS
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4.7.12 1st transfer roller status detection sensor (S12)............................................4-139
4.7.13 Drum/TBU motor (M6) ...................................................................................4-140
4.7.14 Drum and TBU drive unit...............................................................................4-141
4.8 Image Quality Control ...................................................................................................4-145
4.8.1 Image quality control unit...............................................................................4-145
4.8.2 Image position aligning sensor (Front) (S7)...................................................4-146
4.8.3 Image position aligning sensor (Rear)/Image quality sensor (S8).................4-146
4.8.4 Registration pass sensor (S6) .......................................................................4-146
4.9 Fuser Unit......................................................................................................................4-147
4.9.1 Fuser unit.......................................................................................................4-147
4.9.2 Front side cover.............................................................................................4-149
4.9.3 Rear side cover..............................................................................................4-149
4.9.4 Separation finger ...........................................................................................4-149
4.9.5 Separation guide............................................................................................4-151
4.9.6 Exit sensor (S13) ...........................................................................................4-151
4.9.7 Paper exit guide.............................................................................................4-152
4.9.8 Fuser belt.......................................................................................................4-153
4.9.9 Fuser belt lubricating sheet / Fuser belt pad..................................................4-159
4.9.10 Fuser belt unit center thermistor (THM1) / edge thermistor (THM2) /
side thermistor (THM5) / thermostat (THMO1)..............................................4-163
4.9.11 Pressure roller ...............................................................................................4-164
4.9.12 IH-COIL..........................................................................................................4-167
4.9.13 Fuser belt rotation detection sensor (S27).....................................................4-171
4.9.14 Pressure roller contact/release detection sensor 1 (S28)..............................4-172
4.9.15 Pressure roller contact/release detection sensor 2 (S29)..............................4-172
4.9.16 Fuser motor (M4)...........................................................................................4-173
4.9.17 Fuser drive unit..............................................................................................4-173
4.9.18 Pressure roller contact/release motor (M13) .................................................4-176
4.9.19 IH board cooling fan (F6)...............................................................................4-178
4.10 Paper Exit and Reverse Sections .................................................................................4-181
4.10.1 Reverse unit...................................................................................................4-181
4.10.2 Paper exit unit................................................................................................4-183
4.10.3 Lower paper exit roller ...................................................................................4-184
4.10.4 Reverse motor (M5).......................................................................................4-185
4.10.5 Reverse gate solenoid (SOL2) ......................................................................4-186
4.10.6 Upper paper exit roller ...................................................................................4-187
4.10.7 Reverse roller ................................................................................................4-189
4.10.8 Exit section cooling fan (F7) ..........................................................................4-189
4.11 Automatic Duplexing Unit (ADU)...................................................................................4-191
4.11.1 Automatic duplexing unit (ADU).....................................................................4-191
4.11.2 Bypass feed clutch (CLT3) ............................................................................4-193
4.11.3 Transport unit.................................................................................................4-194
4.11.4 ADU guide assembly .....................................................................................4-196
4.11.5 ADU middle cover..........................................................................................4-197
4.11.6 ADU control PC board (ADU board) (ADU)...................................................4-199
4.11.7 ADU motor (M12)...........................................................................................4-200
4.11.8 ADU entrance sensor (S14)...........................................................................4-201
4.11.9 ADU exit sensor (S15)...................................................................................4-201
4.11.10 Transport roller (Upper and lower).................................................................4-202
4.11.11 Reverse sensor (S26)....................................................................................4-203
4.11.12 Side cover interlock switch (SW3) .................................................................4-203
4.11.13 Fuser section cooling fan 1 (F4) ....................................................................4-204
4.11.14 Fuser section cooling fan 2 (F9) ....................................................................4-204
4.12 Removal and Installation of Options .............................................................................4-206
4.12.1 MR-3025 (Reversing Automatic Document Feeder)......................................4-206
4.12.2 KD-1032 (Paper Feed Pedestal) ...................................................................4-208
4.12.3 KD-1031 (Large Capacity Feeder).................................................................4-212
4.12.4 KN-2550 (Bridge Kit)......................................................................................4-217

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CONTENTS
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4.12.5 MJ-1036 (Inner Finisher) ...............................................................................4-219
4.12.6 MJ-1108 (Saddle Stitch Finisher) ..................................................................4-222
4.12.7 MJ-1107 (Finisher).........................................................................................4-224
4.12.8 MJ-6104 (Hole punch unit) ............................................................................4-225
4.12.9 MJ-5006 (Job Separator)...............................................................................4-228
5. SELF-DIAGNOSTIC MODE..........................................................................................5-1
5.1 Overview...........................................................................................................................5-1
5.2 Service UI..........................................................................................................................5-5
5.2.1 Overview............................................................................................................5-5
5.2.2 Login procedure.................................................................................................5-5
5.2.3 [SERVICE MODE] Screen.................................................................................5-7
5.2.4 Setting/Changing password...............................................................................5-7
5.3 Input check (Test mode 03) ..............................................................................................5-8
5.4 Output check (test mode 03).............................................................................................5-9
5.5 Test print mode (test mode 04).......................................................................................5-10
5.6 Operation Procedure in Adjustment Mode (05) ..............................................................5-11
5.7 Test print pattern in Adjustment Mode (05).....................................................................5-14
5.8 Operation Procedure in Setting Mode (08) .....................................................................5-18
5.9 Assist Mode (3C).............................................................................................................5-20
5.9.1 General description..........................................................................................5-20
5.9.2 Operating Procedure .......................................................................................5-20
5.9.3 Functions .........................................................................................................5-20
5.10 HDD Assist Mode (4C)....................................................................................................5-23
5.10.1 General description..........................................................................................5-23
5.10.2 Operation procedure........................................................................................5-23
5.10.3 Functions .........................................................................................................5-24
5.11 File System Recovery Mode (5C) ...................................................................................5-27
5.11.1 Overview..........................................................................................................5-27
5.11.2 Operation procedure........................................................................................5-27
5.11.3 Functions .........................................................................................................5-28
5.12 SRAM Clear Mode (6C)..................................................................................................5-32
5.12.1 General description..........................................................................................5-32
5.12.2 Operation procedure........................................................................................5-32
5.12.3 Functions .........................................................................................................5-33
5.13 List print mode (9S).........................................................................................................5-34
5.13.1 Operation procedure........................................................................................5-34
5.13.2 List Printing......................................................................................................5-35
5.14 Pixel counter ...................................................................................................................5-48
5.14.1 Outline .............................................................................................................5-48
6. SETTING / ADJUSTMENT............................................................................................6-1
6.1 Image Related Adjustment................................................................................................6-1
6.1.1 Adjustment Order...............................................................................................6-1
6.1.2 Adjustment of the Auto-Toner Sensor ...............................................................6-2
6.1.3 Performing Image Quality Control .....................................................................6-4
6.1.4 Adjustment of Color Registration Control ..........................................................6-5
6.1.5 Image Dimensional Adjustment.........................................................................6-6
6.1.6 Paper alignment at the registration roller...........................................................6-8
6.1.7 Image dimensional adjustment at the printing section.....................................6-12
6.1.8 Image dimensional adjustment at the scanning section..................................6-18
6.1.9 Image dimensional adjustment in the copy/printer/fax function.......................6-26
6.2 Image Quality Adjustment (Copying Function)................................................................6-27
6.2.1 Automatic gamma adjustment .........................................................................6-27
6.2.2 Density adjustment ..........................................................................................6-29
6.2.3 Color balance adjustment................................................................................6-30
6.2.4 Gamma balance adjustment............................................................................6-33
6.2.5 Background adjustment...................................................................................6-34
6.2.6 Judgment threshold for ACS (common for copy and scan).............................6-34

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CONTENTS
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6.2.7 Sharpness adjustment.....................................................................................6-35
6.2.8 Setting range correction...................................................................................6-36
6.2.9 Adjustment of smudged/faint text ....................................................................6-36
6.2.10 Color Adjustment of Marker.............................................................................6-37
6.2.11 LED emission level adjustment........................................................................6-38
6.2.12 Maximum toner density adjustment to paper type...........................................6-38
6.2.13 Maximum text density adjustment ...................................................................6-39
6.2.14 Text/Photo reproduction level adjustment .......................................................6-39
6.2.15 Black header density level adjustment ............................................................6-41
6.2.16 Black area adjustment in twin color copy mode...............................................6-41
6.2.17 Judgment threshold adjustment for blank originals
(common for copy and scan) ...........................................................................6-42
6.2.18 Background offsetting adjustment for RADF (common for copy, scan and fax)6-42
6.2.19 Twin color copy / mono color copy adjustment................................................6-43
6.2.20 Maximum density adjustment for each paper type ..........................................6-44
6.2.21 Color reproduction selection............................................................................6-45
6.2.22 Hue adjustment................................................................................................6-46
6.2.23 Saturation adjustment......................................................................................6-49
6.3 Image Quality Adjustment (Printing Function).................................................................6-51
6.3.1 Automatic gamma adjustment .........................................................................6-51
6.3.2 Gamma balance adjustment (Black Mode)......................................................6-54
6.3.3 Color balance adjustment................................................................................6-56
6.3.4 Adjustment of faint text....................................................................................6-58
6.3.5 Upper limit value in the Toner Saving Mode....................................................6-58
6.3.6 Maximum toner density adjustment (OHP)......................................................6-59
6.3.7 Fine line enhancement switchover ..................................................................6-59
6.3.8 “PureBlack/PureGray” threshold adjustment (PCL).........................................6-59
6.3.9 “PureBlack/PureGray” threshold adjustment (Twin color mode) .....................6-60
6.3.10 “PureBlack/PureGray” threshold adjustment (PS)...........................................6-60
6.3.11 “PureBlack/PureGray” threshold adjustment (XPS).........................................6-60
6.3.12 Toner limit threshold adjustment......................................................................6-61
6.3.13 Sharpness adjustment.....................................................................................6-61
6.3.14 Thin line width lower limit adjustment ..............................................................6-63
6.3.15 Offsetting adjustment for background processing ...........................................6-64
6.3.16 Color/black judgment setting for twin color printing images.............................6-64
6.3.17 LED emission level adjustment........................................................................6-65
6.3.18 Density adjustment of graphic lines (1200 dpi)................................................6-66
6.4 Image Quality Adjustment (Scanning Function)..............................................................6-67
6.4.1 Gamma balance adjustment............................................................................6-67
6.4.2 Density adjustment ..........................................................................................6-68
6.4.3 Background adjustment (Color Mode).............................................................6-69
6.4.4 Background adjustment (Black/Grayscale)......................................................6-70
6.4.5 Judgment threshold for ACS (common for copy and network scan) ...............6-70
6.4.6 Sharpness adjustment.....................................................................................6-71
6.4.7 Fine adjustment of black density .....................................................................6-72
6.4.8 RGB conversion method selection ..................................................................6-72
6.4.9 Adjustment of saturation..................................................................................6-73
6.4.10 Background offsetting adjustment for RADF (common for copy, scan and fax)6-73
6.4.11 Adjustment of the capacity and image quality of SlimPDF ..............................6-74
6.4.12 Surrounding void amount adjustment..............................................................6-74
6.4.13 Judgment threshold adjustment for blank originals
(common for copy and scan) ...........................................................................6-75
6.4.14 JPEG compression level adjustment...............................................................6-75
6.4.15 Color conversion table selection......................................................................6-75
6.5 Image Quality Adjustment (FAX Function)......................................................................6-77
6.5.1 Density adjustment ..........................................................................................6-77
6.5.2 LED emission level adjustment........................................................................6-78
6.5.3 Background offsetting adjustment for RADF (common for copy, scan and fax)6-78

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CONTENTS
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6.6 Scanner...........................................................................................................................6-79
6.6.1 Adjustment carriages-1 positions.....................................................................6-79
6.6.2 Position adjustment of CCD lens unit..............................................................6-80
6.6.3 Belt tension adjustment of the Scan motor......................................................6-80
6.7 Writing Section................................................................................................................6-81
6.7.1 Image Adjustment in the Writing Section.........................................................6-81
6.8 Paper Feeding System....................................................................................................6-82
6.8.1 Adjusting the clearance of the paper and side guides.....................................6-82
6.9 Process Unit Related Section .........................................................................................6-83
6.9.1 High-Voltage Transformer Setting ...................................................................6-83
6.10 Developer Unit ................................................................................................................6-84
6.10.1 Adjustment of the Auto-Toner Sensor .............................................................6-84
6.10.2 Adjustment of the doctor-to-sleeve gap...........................................................6-84
6.11 Image Quality Control .....................................................................................................6-86
6.11.1 Performing Image Quality Control ...................................................................6-86
6.12 Fuser Unit........................................................................................................................6-86
6.12.1 Adjustment of the Separation Guide Gap........................................................6-86
7. PREVENTIVE MAINTENANCE (PM)............................................................................7-1
7.1 General Description ..........................................................................................................7-1
7.2 PM Display........................................................................................................................7-1
7.2.1 General Description...........................................................................................7-1
7.2.2 PM Display Conditions.......................................................................................7-1
7.2.3 PM Display Contents .........................................................................................7-3
7.2.4 Counter Clearing................................................................................................7-4
7.3 General Descriptions for PM Procedure ...........................................................................7-5
7.4 PM Support Mode.............................................................................................................7-6
7.4.1 General Description...........................................................................................7-6
7.4.2 Operational flow.................................................................................................7-6
7.4.3 Operational screen ............................................................................................7-7
7.4.4 Access tree......................................................................................................7-10
7.5 Work flow of parts replacement.......................................................................................7-12
7.6 Preventive Maintenance Checklist..................................................................................7-13
7.6.1 Scanner ...........................................................................................................7-14
7.6.2 LED unit...........................................................................................................7-15
7.6.3 Feed unit..........................................................................................................7-16
7.6.4 Automatic duplexing unit..................................................................................7-17
7.6.5 Bypass feed unit ..............................................................................................7-18
7.6.6 Main charger....................................................................................................7-19
7.6.7 Cleaner unit .....................................................................................................7-20
7.6.8 Developer unit (K, Y, M, and C).......................................................................7-23
7.6.9 Transfer belt unit / Transfer belt cleaning unit .................................................7-27
7.6.10 Image quality control unit.................................................................................7-29
7.6.11 2nd transfer roller unit......................................................................................7-30
7.6.12 Fuser unit.........................................................................................................7-31
7.6.13 Paper exit section / Reverse section ...............................................................7-32
7.6.14 RADF (MR-3025).............................................................................................7-33
7.6.15 PFP (KD-1032) ................................................................................................7-34
7.6.16 LCF (KD-1031) ................................................................................................7-35
7.7 Storage of Supplies and Replacement Parts..................................................................7-36
7.8 PM KIT............................................................................................................................7-37
7.9 Maintenance Part List ....................................................................................................7-38
7.10 Grease List......................................................................................................................7-40
7.11 Machine Refreshing Checklist.........................................................................................7-41
8. ERROR CODE AND TROUBLESHOOTING................................................................8-1
8.1 General Descriptions.........................................................................................................8-1
8.1.1 If a problem continues even after performing all troubleshooting......................8-1
8.1.2 Collection of debug logs with a USB device ......................................................8-2

© 2012-2013 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO2555C/3055C/3555C/4555C/5055C
CONTENTS
9
8.2 Error Code List..................................................................................................................8-4
8.2.1 Jam....................................................................................................................8-4
8.2.2 Service call ......................................................................................................8-15
8.2.3 Error in Internet FAX / Scanning Function.......................................................8-25
8.2.4 Printer function error........................................................................................8-34
8.2.5 TopAccess related error/Communication error with external application ........8-36
8.2.6 MFP access error ............................................................................................8-37
8.2.7 Maintenance error............................................................................................8-39
8.2.8 Network error...................................................................................................8-40
8.2.9 Error history .....................................................................................................8-43
8.3 Diagnosis and Prescription for Each Error Code ............................................................8-45
8.3.1 Check item.......................................................................................................8-45
8.3.2 Paper transport jam (paper exit section)..........................................................8-45
8.3.3 Paper misfeeding.............................................................................................8-48
8.3.4 Paper transport jam .........................................................................................8-52
8.3.5 Other paper jam...............................................................................................8-61
8.3.6 Cover open jam ...............................................................................................8-68
8.3.7 RADF jam ........................................................................................................8-72
8.3.8 Jam in bridge unit ............................................................................................8-78
8.3.9 Paper jam in finisher section............................................................................8-81
8.3.10 Paper jam in saddle stitcher section..............................................................8-101
8.3.11 Paper jam in puncher unit..............................................................................8-105
8.3.12 Other paper jam.............................................................................................8-107
8.3.13 Drive system related service call ...................................................................8-120
8.3.14 Paper feeding system related service call .....................................................8-122
8.3.15 Scanning system related service call.............................................................8-128
8.3.16 Fuser unit related service call........................................................................8-132
8.3.17 Communication related service call...............................................................8-141
8.3.18 RADF related service call ..............................................................................8-145
8.3.19 Circuit related service call..............................................................................8-146
8.3.20 LED head related service call........................................................................8-151
8.3.21 Finisher related service call ...........................................................................8-155
8.3.22 Image control related service call ..................................................................8-183
8.3.23 Copy process related service call..................................................................8-200
8.3.24 Other service call...........................................................................................8-211
8.3.25 Error in Internet FAX / Scanning Function.....................................................8-239
8.3.26 Printer function error......................................................................................8-251
8.3.27 TopAccess related error/Communication error with external application ......8-253
8.3.28 MFP access error ..........................................................................................8-257
8.3.29 Maintenance error..........................................................................................8-260
8.3.30 Network error.................................................................................................8-264
8.4 Other errors...................................................................................................................8-274
8.4.1 Equipment operation disabled after the installation of option(s)....................8-274
8.4.2 Wireless LAN connection disabled................................................................8-274
8.4.3 "Invalid Department Code" is displayed.........................................................8-274
8.4.4 Paper folded on the leading edge..................................................................8-274
8.4.5 Toner cartridge unrecognized........................................................................8-274
8.4.6 Ethernet disabled in half-duplex communication ...........................................8-274
8.4.7 The equipment does not start after the power has been turned ON..............8-275
8.5 Troubleshooting for the Image......................................................................................8-277
8.5.1 Color deviation...............................................................................................8-277
8.5.2 Uneven pitch and jitter image........................................................................8-279
8.5.3 Poor image density, color reproduction and gray balance.............................8-281
8.5.4 Background fogging 1....................................................................................8-283
8.5.5 Background fogging 2 (1200 dpi printing)......................................................8-285
8.5.6 Moire /lack of sharpness................................................................................8-286
8.5.7 Toner offset....................................................................................................8-288
8.5.8 Blurred image ................................................................................................8-290

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CONTENTS
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8.5.9 Poor fusing.....................................................................................................8-291
8.5.10 Blank print......................................................................................................8-293
8.5.11 Solid print.......................................................................................................8-295
8.5.12 White banding (in feeding direction) ..............................................................8-297
8.5.13 White banding (at right angles to feeding direction) ......................................8-299
8.5.14 Skew (slantwise copying) ..............................................................................8-300
8.5.15 Color banding (in feeding direction)...............................................................8-302
8.5.16 Color banding (at right angles to feeding direction).......................................8-304
8.5.17 White spots....................................................................................................8-305
8.5.18 Poor transfer..................................................................................................8-307
8.5.19 Uneven image density 1 (in feeding direction)...............................................8-309
8.5.20 Uneven image density 1 (at right angles to feeding direction).......................8-311
8.5.21 Uneven image density 2 ................................................................................8-312
8.5.22 Faded image (low density).............................................................................8-314
8.5.23 Image dislocation in feeding direction............................................................8-315
8.5.24 Image jittering ................................................................................................8-316
8.5.25 Poor cleaning.................................................................................................8-317
8.5.26 Uneven light distribution ................................................................................8-319
8.5.27 Blotched image..............................................................................................8-320
8.5.28 Stain on the paper back side .........................................................................8-321
8.5.29 White void in the halftone ..............................................................................8-323
8.5.30 Paper wrinkle.................................................................................................8-326
8.5.31 Staining at the leading/trailing edge...............................................................8-328
8.5.32 Faint image....................................................................................................8-329
8.5.33 Toner scattering.............................................................................................8-330
8.5.34 Feathered image............................................................................................8-332
8.5.35 Image Skewing on Paper Trailing Edge ........................................................8-334
8.5.36 Staining on both sides of paper .....................................................................8-337
8.5.37 Roller trace ....................................................................................................8-338
8.5.38 Staining at the leading edge..........................................................................8-339
9. REPLACEMENT OF PC BOARDS/HDD......................................................................9-1
9.1 Removal and Installation of PC Boards/HDD....................................................................9-1
9.1.1 SYS Board cover ...............................................................................................9-1
9.1.2 SYS board case.................................................................................................9-2
9.1.3 SYS board .........................................................................................................9-3
9.1.4 Hard disk (HDD) ................................................................................................9-4
9.1.5 IH board.............................................................................................................9-5
9.1.6 LGC board .........................................................................................................9-6
9.1.7 Switching regulator ............................................................................................9-8
9.1.8 High-voltage transformer (HVT).........................................................................9-9
9.1.9 SRAM board <for SYS board> ........................................................................9-10
9.1.10 EEPROM <for LGC board> .............................................................................9-11
9.1.11 DRV board.......................................................................................................9-11
9.1.12 FIL board .........................................................................................................9-12
9.1.13 CTIF board.......................................................................................................9-12
9.2 Precautions, Procedures and Settings for Replacing PC Boards and HDD ...................9-13
9.2.1 Precautions when replacing PC boards...........................................................9-13
9.2.2 HDD fault diagnosis.........................................................................................9-14
9.2.3 Precautions and procedures when replacing the HDD....................................9-17
9.2.4 Precautions and Procedures when replacing the SYS board..........................9-22
9.2.5 Precautions and procedure when replacing the SRAM board
(for the SYS board)..........................................................................................9-26
9.2.6 Procedures and settings when replacing EEPROM (for LGC board)..............9-33
9.2.7 Procedures and settings when replacing the Lens unit ..................................9-39
9.2.8 Firmware confirmation after the PC board/HDD replacement .........................9-39
9.2.9 License re-registration using the one-time dongle...........................................9-40
9.3 Precautions for Installation of GP-1070 and Disposal of HDD/Board.............................9-42
9.3.1 Precautions for Installation of GP-1070...........................................................9-42