Toshiba DP4500 How to use

SERVICE HANDBOOK
DIGITAL PLAIN PAPER COPIER
DP4500/3500
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Copyright TOSHIBA CORPORATION 2001
ALL RIGHTS RESERVED

GENERAL PRECAUTIONS REGARDINGTHE INSTALLATION
AND SERVICE FORTHE COPIER DP4500/3500
The installation and service should be done by a qualified service technician.
1. Transportation/Installation
• When transporting/installing the copier, employ two persons and be sure to use the positions as
indicatedbelow.
Thecopierisquite heavyand weighsapproximately 73kg(161lb), thereforepay fullattention when
handlingit.
• Be sure to use a dedicated outlet with AC 115V or 120V/15A (220V, 230V, 240V/10A) or more for
itspowersource.
• The copier must be grounded for safety.
Never ground it to a gas pipe or a water pipe.
• Select a suitable place for installation.
Avoid excessive heat, high humidity, dust, vibration and direct sunlight.
• Also provide proper ventilation as the copier emits a slight amount of ozone.
• To insure adequate working space for the copying operation, keep a minimum clearance of
80 cm (32”) on the left, 80 cm (32”) on the right and 10 cm (4”) in the rear.
• The socket-outlet shall be installed near the copier and shall be easily accessible.
2. Service of Machines
• Basically, be sure to turn the main switch off and unplug the power cord during service.
• Be sure not to touch high-temperature sections such as the exposure lamp, the fuser unit, the
dampheater andtheir periphery.
• Be sure not to touch high-voltage sections such as the chargers, high-voltage transformer, IH
control circuit, exposure lamp control inverter, inverter for the LCD backlight and power supply
unit.Especially, the board of these components should not be touched since the electirc charge
may remain in the condensers, etc.on them even after the power is turned OFF.
• Be sure not to touch rotating/operating sections such as gears, belts, pulleys, fan, etc.
• Becareful when removingthe coverssince there mightbe the parts withverysharp edges under-
neath.
• When servicing the machines with the main switch turned on, be sure not to touch live sections
androtating/operating sections.Avoidexposuretolaser radiation.
• Use suitable measuring instruments and tools.
• Avoidexposure to laser radiationduring servicing.
−Avoid direct exposure to the beam.
−Do not insert tools, parts, etc.that are reflective into the path of the laser beam.
−Remove all watches, rings, bracelets, etc.that are reflective.

3. Main Service Parts for Safety
• Thebreaker, door switch, fuse,thermostat, thermofuse, thermistor,etc.are particularly important
for safety.Be sure to handle/install them properly.
4. Cautionary Labels
• During servicing, be sure to check the rating plate and the cautionary labels such as “Unplug the
power cord duringservice”,“Hotarea”,“Laserwarning label”etc.tosee ifthere is anydirt ontheir
surface and whether they are properly stuck to the copier.
5. Disposition of Consumable Parts/Packing Materials
• Regardingthe recovery anddisposalof thecopier, supplies,consumableparts and packingmate-
rials, it is recommended to follow the relevant local regulations or rules.
6. When parts are disassembled, reassembly is basically the reverse of disassembly unless
otherwise noted in this manual or other related documents. Be careful not to reassemble
small parts such as screws, washers, pins, E-rings, star washers in the wrong places.
7. Basically,the machine should not be operated with any parts removed or disassembled.
8. Precautions Against Static Electricity
• ThePC boardmustbe storedin an anti-electrostaticbag and handledcarefully using awristband,
because the ICs on it may become damaged due to static electricity.
Caution: Before using the wristband, pull out the power cord plug of the copier and make
sure that there are no uninsulated charged objects in the vicinity.
Caution: Dispose of used batteries andRAM-ICs including lithium batteries
according to the manufacturer’s instructions.
Attention: Se débarrasser de batteries et RAM-ICs usés y compris les batteries en
lithium selon les instructions du fabricant.
Vorsicht: Entsorgung des gebrauchten Batterienund RAM-ICs (inklusive
der Lithium-Batterie) nach Angaben des Herstellers.

1. ERROR CODE AND SELF-
DIAGNOSIS
2. ADJUSTMENT
3. PREVENTIVE MAINTENANCE
(PM)
4. PRECAUTIONS FOR STORING
/ HANDLING SUPPLIES AND
PARTS
5. TROUBLESHOOTING
6. UPDATING THE FIRMWARE
7. WIRE HARNESS
CONNECTION DIAGRAMS

IOctober 2000 © TOSHIBA TECDP4500/3500 CONTENTS
CONTENTS
1. ERROR CODEAND SELF-DIAGNOSIS ..................................................................................... 1-1
1.1 ErrorCode ............................................................................................................................. 1-1
1.2 Self-DiagnosisModes ............................................................................................................ 1-6
1.2.1 Input check (test mode 03) ....................................................................................... 1-8
1.2.2 Output check (test mode 03) .................................................................................... 1-13
1.2.3 Test print mode (test mode 04) ................................................................................. 1-15
1.2.4 Adjustmentmode (05)............................................................................................... 1-16
1.2.5 Setting mode(08) ..................................................................................................... 1-22
2. ADJUSTMENT............................................................................................................................ 2-1
2.1 Formattingthe HardDisk ....................................................................................................... 2-1
2.2 Adjustmentof Auto-TonerSensor........................................................................................... 2-2
2.3 DimensionalAdjustment ofCopied Image.............................................................................. 2-4
2.3.1 Overview .................................................................................................................. 2-4
2.3.2 Paperalignment ........................................................................................................ 2-6
2.3.3 Printer related adjustment ......................................................................................... 2-7
2.3.4 Scannerrelatedadjustment ...................................................................................... 2-11
2.4 Image Quality Adjustment...................................................................................................... 2-18
2.4.1 Image density ........................................................................................................... 2-18
2.4.2 Sharpness(HPF) adjustment ..................................................................................... 2-19
2.4.3 Gamma slopeadjustment ......................................................................................... 2-19
2.4.4 Setting for the rangecorrection ................................................................................. 2-20
2.5 High-Voltage Adjustment........................................................................................................ 2-21
2.6 Adjustmentof DeveloperUnit ................................................................................................ 2-27
2.6.1 Adjustment of the doctor-sleeve gap......................................................................... 2-27
2.6.2 Adjustment of the developer polarity position............................................................ 2-29
2.7 Adjustment of Scanning Section............................................................................................ 2-30
2.7.1 Adjustment of carriages ............................................................................................ 2-30
2.7.2 Lensunit................................................................................................................... 2-34
2.8 Adjustment of Angle of the Printed Image.............................................................................. 2-37
2.9 Adjustment of Sideways Deviation of Sheet Caused by Paper Feeding.................................. 2-38
2.10 Key Copy Counter (MU-8, MU-10) .......................................................................................... 2-39
3. PREVENTIVE MAINTENANCE (PM) ......................................................................................... 3-1
3.1 MaintenancePerformed Every150,000(DP4500)and
116,000Copies(DP3500) ................................................................................................... 3-1
3.2 MaintenancePerformed Every450,000(DP4500)and
348,000Copies(DP3500) ................................................................................................... 3-1
3.3 CleaningtheUnitsWhichHaveProcessed 75,000Copies(DP4500)/58,000Copies (DP3500).. 3-1
3.4 PreventiveMaintenance Checklist ......................................................................................... 3-1

IIOctober 2000 © TOSHIBA TEC DP4500/3500 CONTENTS
3.5 PM Kit ................................................................................................................................... 3-10
3.6 Jig List................................................................................................................................... 3-11
4. PRECAUTIONS FOR STORING / HANDLING SUPPLIES AND PARTS .................................... 4-1
4.1 PrecautionsforStoringTOSHIBA Supplies............................................................................ 4-1
4.2 Checkingand Cleaningof PhotoconductiveDrum .................................................................. 4-1
4.3 CheckingandCleaning ofDrumCleaning Blade..................................................................... 4-2
4.4 Checkingand Replacementof PressureRollerCleaning Roller .............................................. 4-3
4.5 Checkingand Cleaningof FuserRollerand PressureRoller ................................................... 4-3
5. TROUBLESHOOTING ................................................................................................................ 5-1
5.1 Diagnosisand PrescriptionforEach ErrorCode..................................................................... 5-1
5.1.1 Papertransport jam .................................................................................................. 5-1
5.1.2 Paper misfeeding ...................................................................................................... 5-10
5.1.3 Cover openjam ........................................................................................................ 5-17
5.1.4 Transport jam (ADUand otherarea) .......................................................................... 5-23
5.1.5 Transportjam (RADF) ............................................................................................... 5-27
5.1.6 Paper jam in finisher .................................................................................................5-28
5.1.7 Drive system related service call .............................................................................. 5-48
5.1.8 Paper feeding system related service call ................................................................. 5-49
5.1.9 Scanning system related service call........................................................................ 5-55
5.1.10 Fuser unit related service call ................................................................................... 5-57
5.1.11 Communication relatedservice call .......................................................................... 5-60
5.1.12 ADF related service call............................................................................................5-63
5.1.13 Laser optical unit related service call ........................................................................ 5-65
5.1.14 Finisher related service call ...................................................................................... 5-66
5.1.15 Service call for others............................................................................................... 5-94
5.2 Troubleshooting for the Image ................................................................................................ 5-95
5.3 Troubleshooting for theBlownFuse........................................................................................ 5-117
6. UPDATINGTHE FIRMWARE ...................................................................................................... 6-1
6.1 InstallingSoftware forFirmwareUpdate ................................................................................. 6-2
6.1.1 Outline ...................................................................................................................... 6-2
6.1.2 Requirements ........................................................................................................... 6-2
6.1.3 Dial-up networkingfunction ....................................................................................... 6-3
6.1.4 Installing dial-upnetworking ...................................................................................... 6-7
6.1.5 Setting dial-upnetworking ......................................................................................... 6-9
6.1.6 Installing software for FTP server ............................................................................. 6-13
6.2 OperationProcedurein [3][9]Mode........................................................................................ 6-17
6.2.1 Outline ...................................................................................................................... 6-17
6.2.2 Preparation ............................................................................................................... 6-17
6.2.3 Updatingfirmware ..................................................................................................... 6-19

III October 2000 © TOSHIBA TECDP4500/3500 CONTENTS
6.2.4 Display ..................................................................................................................... 6-25
6.3 Updatingthe FirmwareUsingthe DownloadingJig ................................................................. 6-29
6.3.1 Systemfirmware....................................................................................................... 6-30
6.3.2 Enginefirmware ........................................................................................................ 6-37
7. WIRE HARNESS CONNECTION DIAGRAMS ............................................................................ 7-1
7.1 ACWireHarness ....................................................................................................... 7-2
7.2 DCWireHarness............................................................................................. Appendix

December 2000 © TOSHIBA TEC 1 - 1 DP4500/3500 ERRORCODESANDSELF-DIAGNOSIS
1. ERROR CODES AND SELF-DIAGNOSIS
1.1 Error Code
One of the following error codes is displayed instead of the set number while the [CLEAR/STOP] key and the
digital key “8”are pressed simultaneously when the “CLEAR PAPER” or “CALL SERVICE” symbol is flashing.
Paper transport jam inside the E01 Leading edge of paper not reaching the exit sensor
copier (1) E02 Trailing edge of paper not passing the exit sensor
E03 Paper remaining inside the copier at power ON
E09 HDD is abnormal
Paper misfeeding E11 ADU misfeeding
(paper not reaching the registration sensor)
E12 Bypass misfeeding
(paper not reaching the registration sensor)
E13 Upper cassette misfeeding
(paper not reaching the upper feed sensor)
E14 Lower cassette misfeeding
(paper not reaching the lower feed sensor)
E15 PFP upper cassette misfeeding
(paper not reaching the PFP upper feed sensor)
E16 PFP lower cassette misfeeding
(paper not reaching the PFP lower feed sensor)
E19 LCF misfeeding
(paper not reaching the LCF feed sensor)
Paper transport jam inside the E20 Paper fed from the upper cassette
copier (2) not reaching the registration sensor
E21 Paper fed from the lower cassette
not reaching the registration sensor
E22 Paper fed from the lower cassette
not reaching the upper feed sensor
E30 Paper fed from the PFP upper cassette
not reaching the registration sensor
E31 Paper fed from the PFP upper cassette
not reaching the upper feed sensor
E32 Paper fed from the PFP upper cassette
not reaching the lower feed sensor
E33 Paper fed from the PFP lower cassette
not reaching the registration sensor
E34 Paper fed from the PFP lower cassette
not reaching the upper feed sensor
E35 Paper fed from the PFP lower cassette
not reaching the lower feed sensor
E36 Paper fed from the PFP lower cassette
not reaching the PFP upper feed sensor
E3C Paper fed from the LCF
not reaching the registration sensor
E3D Paper fed from the LCF
not reaching the upper feed sensor
E3E Paper fed from the LCF
not reaching the lower feed sensor
Group ErrorCode Machine Status

DP4500/3500 ERRORCODESANDSELF-DIAGNOSIS 1 - 2 December 2000 © TOSHIBA TEC
Cover open jam E40 Jam access cover opened during printing
E41 Front cover opened during printing
E42 PFP side cover opened during printing
E43 ADU opened during printing
E44 Side cover opened during printing
E45 LCF side cover opened during printing
E48 Relay unit opened during printing
Transport jam (ADU and other area) E51 ADU stack jam (paper not reaching the ADU entrance sensor)
E52 ADU transport jam (paper not reaching the ADU exit sensor)
E55 Paper remaining on the transport path when CRUN is OFF
Transport jam (RADF) E71 Original feeding jam
E72 Original transport jam
E73 Original discharging jam
E74 Original reversing jam
Paper jam in finisher E91 Leading edge of paper not reaching the relay unit transport
sensor-1
E92 Trailing edge of paper not passing the relay unit transport sen-
sor-1
E93 Leading edge of paper not reaching the relay unit transport
sensor-2
E94 Trailing edge of paper not passing the relay unit transport sen-
sor-2
E9F Punching jam
EA1 Finisher paper transport delay jam
EA2 Finisher paper transport stop jam
EA3 Paper remaining inside the finisher at power ON
EA4 Finisher front door opened during printing
EA5 Finisher stapling jam
EA6 Finisher early arrival jam
EA7 Stack transport jam before stapling
EA8 Saddle stitcher stapling jam
EA9 Saddle stitcher door opened during printing
EAA Paper remaining at the saddle stitcher at power ON
EAB Saddle stitcher paper transport stop jam
EAC Saddle stitcher paper transport delay jam
EAD Print end command time-out jam
EAE Receiving time time-out jam
EAF Stapled stack transport jam
EB3 Ready time time-out jam
Paper transport jam inside the EB5 Paper left on the transport path due to multiple feeding
copier (3) EB6 Paper left on the transport path due to multiple feeding
Drive system related service call C01 Main motor is abnormal
Group ErrorCode Machine Status

December 2000 © TOSHIBA TEC 1 - 3 DP4500/3500 ERRORCODESANDSELF-DIAGNOSIS
Paper feeding system related service call C04 PFP motor is abnormal
(paper can be fed from cassettes other than PFP cassette)
C13 Upper cassette tray is abnormal (paper can be fed from the
cassettes other than the copier cassettes)
C14 Lower cassette tray is abnormal (paper can be fed from the
cassettes other than the copier cassettes)
C15 PFP upper cassette tray is abnormal (paper can be fed from
the cassettes other than the PFP upper cassette)
C16 PFP lower cassette tray is abnormal (paper can be fed from the
cassettes other than the PFP lower cassette)
C18 LCF tray-up motor is abnormal
(paper can be fed from the cassettes other than the LCF
cassette)
C1A LCF end fence motor is abnormal
(paper can be fed from the cassettes other than the LCF
cassette)
C1B LCF motor is abnormal
(paper can be fed from the cassettes other than the LCF
cassette)
Scanning system related service call C26 Peak detection error
C27 Carriage home position sensor not going OFF within a fixed
time
C28 Carriage home position sensor not going ON within a fixed
time
Fuser unit related service call C41 Thermistor or heater is abnormal at power ON
C43 Thermistor is abnormal after abnormality judgment
C44 Fuser is abnormal after abnormality judgment
C45 Side thermistor is abnormal after the copier has become ready
C47 IH power voltage is abnormal/IH initialization error
C48 IGBT high temperature
C49 IH circuit or coil is abnormal
Communication related service call C55 ADF I/F is abnormal
C57 Communication error between main CPU and IPC board
C58 Communication error between IPC board and finisher
F07 Communication error between SYS board and LGC board
F11 Communication error between SYS board and SLG board
RADF related service call C71 ADF feed motor is abnormal
C73 EEPROM initialization error
C74 Reverse sensor adjustment error
C81 Fan motor is abnormal
C82 Read sensor adjustment error
C83 Original length sensor adjustment error
Laser optical unit related service call CA1 Polygonal motor is abnormal
CA2 H-Sync detection error
Group ErrorCode Machine Status

DP4500/3500 ERRORCODESANDSELF-DIAGNOSIS 1 - 4 December 2000 © TOSHIBA TEC
Group ErrorCode Machine Status
Finisher related service call CB1 Feed motor is abnormal
CB2 Delivery motor is abnormal
CB3 Tray lift motor is abnormal
CB4 Alignment motor is abnormal
CB5 Staple motor is abnormal
CB6 Stapler shift motor is abnormal
CB7 Height sensor is abnormal
CB8 Backup RAM data are abnormal
CB9 Saddle stitcher paper pushing plate motor is abnormal
CBA Saddle stitcher stitch motor (front) is abnormal
CBB Saddle stitcher stitch motor (rear) is abnormal
CBC Saddle stitcher alignment motor is abnormal
CBD Saddle stitcher guide motor is abnormal
CBE Saddle stitcher paper folding motor is abnormal
CBF Saddle stitcher paper positioning plate motor is abnormal
CC0 Saddle stitcher sensor connector connection error
CC1 Saddle stitcher microswitch error
CC2 Communication error between finisher and saddle stitcher
CC3 Stack processing motor is abnormal
CC4 Swing motor is abnormal
CC5 Horizontal registration motor is abnormal
CC6 Punch motor is abnormal
CC8 Front jogging motor is abnormal
CC9 Upper stack tray lift motor is abnormal
CCA Lower stack tray lift motor is abnormal
CCB Rear jogging motor is abnormal
Service call for others C94 Main CPU is abnormal
F10 HDD initialization error

December 2000 © TOSHIBA TEC 1 - 5 DP4500/3500 ERRORCODESANDSELF-DIAGNOSIS
Copy mode
A Paper source
0: Not selected 1: Bypass feeding 2: LCF 3: PFP(U) 4: Not used 5: PFP(L) 6: ADU feeding
7: Upper cassette 8: Lower cassette
B Paper size code
0: Not selected 1:A5-R 2:ST-R 3:LT 4:A4 5:B5-R 6:LT-R 7: A4-R 8: OTHER/UNIV 9: B5
A: FOL/COM B: LG C: B4 D: LD E: A3 F: 13'LG G: 8.5*8.5 H: 8K I:16K J:16K-R
C Sort mode/Staple mode
0: Not selected 1: Group 2: Sort 7: Staple (stapling one corner -1) 8: Staple (stapling 2 places)
9: Staple (stapling one corner -2) A: Saddle stitch
D ADF mode
0: Not used 1:AUTO FEED (SADF) 2: STACK FEED
E APS/AMS mode
0: Not selected 1: APS 2: AMS
F Duplex mode
0: Not selected 1: BOOK 2: Two-sided/Single-sided 4:Two-sided/Duplex 8: Single-sided/Duplex
G Not used
0: Not used
H Image shift
0: Not used 1: BOOK 2: LEFT 3: RIGHT
I Editing
0: Not used 1: Masking 2:Trimming 3: Mirror image 4: Negative/Positive
J Edge erasing/Dual-page
0: Not used 1: Edge erase 2: Dual-page 3: Edge erase & Dual-page
K Not used
0: Not used
L Function
0: Not used 1: Copying 2: Fax input 3: Fax printing 4: LAN printer 5: DSS
Reproduction ratio
MMM Primary scanning reproduction ratio
Shown in hexadecimal
NNN Secondary scanning reproduction ratio
Shown in hexadecimal
The latest 8 error data can be displayed in the setting mode (08-253).
<<Error history (08-253)>>
(Example of display) EA1
Error code
3 digits
0 0 1 2 2 6 1 7 5 7 3 2
YYMMDDHHMMSS 2 3 6 2 1 0 0 0 0 0 0 0 ABCDEFGHIJKL
12 digits
6 4
MMM
3 digits
6 4
NNN
3 digits12 digits (Year indicated
with its last 2 digits)

DP4500/3500 ERRORCODESANDSELF-DIAGNOSIS 1 - 6 December 2000 © TOSHIBA TEC
Mode Keys to Function Keys to Display
press exit
Whole control panel
items lighting mode
Test mode
Test print mode
Adjustment mode
Setting mode
List printing mode
Unit replacement
mode
1.2 Self-Diagnosis Modes
Sincethis copier isdesigned to copewith multifunctions suchas those ofa network printerand DSS, there
are many setting items which are related to each other in the self-diagnosis modes.
Malfunctions such as machine locking can be caused by the internal structural problem of the program
when a normal operation is attempted by pressing [0] and [9] simultaneously or [C/S] on the control panel
subsequently to the adjustment.
Therefore,turn OFF thepower after usingthe self-diagnosis modefor adjustment afterunpacking, service
or preventive maintenance, and then leave the machine to the customer.
[0]+[1]+
[POWER]
[0]+[3]+
[POWER]
[0]+[4]+
[POWER]
[0]+[5]+
[POWER]
[0]+[8]+
[POWER]
[9]+[START]
+[POWER]
[6]+[START]
+[POWER]
All LEDs on the control panel are lit, and all
the LCD pixels flash.
Checks the status of input/output signals.
Outputs the test patterns.
Adjusts various items.
Sets various items.
Prints out the lists for the codes 05 and 08.
Performs auto-toner adjustment and clears
the process counters.
[C/S]or
[0]+[9]
[0]+[9]
[0]+[9]
[0]+[9]
[0]+[9]
[POWER]
OFF
[POWER]
OFF
100% C
TEST MODE
100% P A4
TEST PRINT
100% A A4
TEST MODE
100% D
TEST MODE
Note: To enter the desired mode, turn ON the power while two digital keys designated to each mode (e.g.[0] and
[5]) are pressed simultaneously.
<Operationprocedure>
• Whole control panelitems lighting mode(01):
100% L A4
LIST PRINT
100% K
TEST MODE
Notes: 1. The mode can be canceled only by pressing the [C/S] key during the key check.
2. Key Check Keys with LED (Press to turn OFF the LED)
Keys without LED (Press to display the message on the control panel)
[0][1]
[POWER]
(All control
panel LEDs lit) [START]
[START]
(Key check) [C/S](Exit)
[C/S] or [0] [9]
(Exit)

December 2000 © TOSHIBA TEC 1 - 7 DP4500/3500 ERRORCODESANDSELF-DIAGNOSIS
• Test mode (03):Refer to “1.2.1 Input check (test mode 03)”and“1.2.2 Outpout check (test mode 03)”.
• Test print mode (04):Refer to“1.2.3 Test print mode (04)”.
• Adjustmentmode (05): Referto “1.2.4 Adjustment mode (05)”.
• List print mode
• Unitreplacement mode
• Settingmode (08): Referto “1.2.5 Setting mode (08)”.
State transition diagram of self-diagnosis mode
Normal
[0][5]
[S]: START key
[C/S]: CLEAR/STOP key
Warming up
Standby
[C/S]
Wholecontrol
panel items lit
[0][1] [0][3] [0][5]
Settingmode Adjustmentmode Test mode
*1 Only when the copier is put into the adjustment mode by turning ON the power while the digital keys
[0] and [5] are pressed simultaneously and then becomes standby state by pressing [0] and [9]
simultaneously, it can go back to the adjustment mode by the pressing of [0] and [5] simultaneously.
*2 In the “whole control panel items lighting mode”, copying is disabled. Enter the standby state by
pressing [0] and [9] simultaneously or [C/S] key to perform copying.
*3 Turn OFF the power after using the self-diagnosis mode, and leave the copier to the user.
[POWER] ON
Test printmode
[0][9]
[POWER] OFF
To user
*3
[0][9]
[0][9][0][9]
*1
*2 [0][8] [0][4] [9][S]
Listprintmode
Unitreplacement
mode
[9] [START]
[POWER] (code) 101:05 adjustment mode
102:08 setting mode
[START]
(List starts to be printed) [POWER]OFF
[6] [START]
[POWER] (code) [POWER]OFF
[6][S]
1: Auto-toner adjustment
2: Drum life counter resetting (08-401)
3: Resetting of the copier running time counter (08-402) and fuser unit counter (08-403)
4: Resetting of the separation charger life counter (08-497)
[START]
(Operation started)

DP4500/3500 ERRORCODESANDSELF-DIAGNOSIS 1 - 8 December 2000 © TOSHIBA TEC
1.2.1 Input check (test mode 03)
The state of each input signal can be checked by pressing the [FAX] key and the digital keys in the
testmode(03).
<Operationprocedure>
Note: Initialization is performed before the copier enters the test mode.
[Example of display during input check]
Itemsto be checked and the state ofthe copier with the icons [A] to[H] displayed in black are listed onthe
followingpages.
[0][3]
[POWER] [START] ([FAX]) [Digital key] (LCD ON) [0][9] (Exit)

December 2000 © TOSHIBA TEC 1 - 9 DP4500/3500 ERRORCODESANDSELF-DIAGNOSIS
A—
B LCF connection Not connected
C—
[1] D Bypass feed sensor Paper does not exist
E ADU connection Not connected
F ADU opening/closing switch ADU opened
G ADU exit sensor There is paper
H ADU entrance sensor There is paper
A—
B—
C PFP upper cassette paper-stock sensor Paper is almost finished
[2] D PFP upper feed sensor There is paper
E PFP connection Not connected
F PFP side cover opening/closing switch Cover opened
G PFP upper cassette paper-empty sensor No paper
H PFP upper cassette tray-up sensor Tray at upper limit position
A LCF tray bottom sensor Tray at bottom position
B LCF paper mis-insertion detection sensor Paper not inserted properly
C—
[3] D—
E—
F—
G—
H LCF feed side paper-stock sensor Paper is almost finished
A—
B—
C PFP lower cassette paper-stock sensor Paper is almost finished
[4] D PFP lower feed sensor There is paper
E PFP motor rotation condition (motor is being rotated in the output check (03)) Abnormal rotation
F—
G PFP lower cassette paper-empty sensor No paper
H PFP lower cassette tray-up sensor Tray at upper limit position
A LCF end fence home position sensor Fence at home position
B LCF end fence stop position sensor Fence at stop position
C LCF standby side paper-empty sensor No paper
[5] D LCF side cover opening/closing switch Cover closed
E LCF motor rotation condition (motor is being rotated in the output check (03)) Abnormal rotation
F LCF tray-up sensor Tray at upper limit position
G LCF feed sensor No paper
H LCF feed side paper-empty sensor No paper
A—
B—
C—
[6] D—
E Upper feed sensor There is paper
F—
G Upper cassette paper-empty sensor No paper
H Upper cassette tray-up sensor Tray at upper limit position
[FAX] key: OFF ( [FAX] LED: OFF)
Digital Icon Items to check Copier state
key with black icon

DP4500/3500 ERRORCODESANDSELF-DIAGNOSIS 1 - 10 December 2000 © TOSHIBA TEC
A—
B—
C—
[7] D—
E Lower feed sensor There is paper
F—
G Lower cassette paper-empty sensor No paper
H Lower cassette tray-up sensor Tray at upper limit position
A Bypass feed paper width sensor-3 See table 1.
B Bypass feed paper width sensor-2 See table 1.
C Bypass feed paper width sensor-1 See table 1.
[8] D Bypass feed paper width sensor-0 See table 1.
E—
F—
G—
H PFP upper cassette detection sensor No cassette
A—
B—
C—
[9] D PFP lower cassette detection sensor No cassette
E—
F—
G Upper cassette detection sensor No cassette
H Upper cassette paper-stock sensor Paper is almost finished
A—
B—
C—
[0] D LCF cassette detection switch No cassette
E—
F—
G Lower cassette detection sensor No cassette
H Lower cassette paper-stock sensor Paper is almost finished
Digital Icon Items to check Copier state
key with black icon
Table 1. Relation between the state of the bypass feed paper width sensor and paper size (width).
Bypass paper width sensor Paper width size
3210
0 1 1 1 A3/LD
1 0 1 1 A4-R/LT-R
1 1 0 1 A5-R/ST-R
1 1 1 0 Card size
0 0 1 1 B4-R/LG
1 0 0 1 B5-R

December 2000 © TOSHIBA TEC 1 - 11 DP4500/3500 ERRORCODESANDSELF-DIAGNOSIS
A—
B—
C—
[1] D IPC board connection Not connected
E—
F Polygonal motor rotation condition (motor is being rotated in the output check (03)) Abormal rotation
G Toner cartridge detection switch OFF
H 24V power supply OFF
A Registration sensor There is paper
B Exit sensor There is paper
C Auto-toner sensor connection Not connected
[2] D Front cover switch Cover opened
E—
F—
G Side door switch Side cover opened
H Main motor rotation condition (motor is being rotated by in the output check (03)) Abormal rotation
A—
B Key copy counter connection Not connected
C Toner bag full detection sensor Toner is full
[3] D Fuser unit connection Unit connected
E Relay unit transport sensor-2 No paper
F Relay unit opening/closing switch Cover opened
G—
H Relay unit paper full detection sensor Paper not full
A—
B—
C—
[4] D—
E—
F—
G Relay unit installation Not installed
H Relay unit transport sensor-1 No paper
A—
B—
C—
[5] D—
E—
F RADF connection RADF connected
G Platen sensor Platen cover opened
H Scanner carriage home position sensor Home position
Digital Icon Items to check Copier state
key with black icon
[FAX] key: ON ([FAX] LED: ON)

DP4500/3500 ERRORCODESANDSELF-DIAGNOSIS 1 - 12 December 2000 © TOSHIBA TEC
A—
B—
C—
[6] D APS sensor (APS-5/for A4 series) / (APS-6/for LT series) No original
E APS sensor (APS-4/for A4 series) No original
F APS sensor (APS-3) No original
G APS sensor (APS-2) No original
H APS sensor (APS-1) No original
A RADF tray sensor Original present
B RADF empty sensor Original present
C RADF jam access cover opening/closing switch Cover opened
[7] D RADF opening/closing sensor RADF opened
E RADF exit sensor Original present
F RADF reverse sensor Original present
G RADF read sensor Original present
H RADF registration sensor Original present
A—
B—
C—
[8] D—
E RADF original length sensor Original present
F RADF original width sensor-1 Original present
G RADF original width sensor-2 Original present
H RADF original width sensor-3 Original present
A—
B—
C—
[9] D—
E—
F—
G—
H—
A—
B—
C—
[0] D—
E—
F—
G—
H—
Digital Icon Items to check Copier state
key with black icon

December 2000 © TOSHIBA TEC 1 - 13 DP4500/3500 ERRORCODESANDSELF-DIAGNOSIS
1.2.2 Output check (test mode 03)
State of the output signals can be checked by entering the codes in the following table in the test
mode03.
<Operationprocedure>
Group(1)
Group(2)
Group(3)
Group(4)
[0][3]
[POWER] (Code) [START] Operation
started Code to stop
operation [START] Operation
stopped [0][9]
(Exit) Warming up
[0][3]
[POWER] (Code) [START]
Operation
(Onedirection)
[C/S] [0][9]
(Exit) Warming up
[0][3]
[POWER] (Code) [START] [START] [C/S] [0][9] (Exit)
Warming
up
[0][3]
[POWER] (Code) [START] [POWER]OFF
101 Main motor ON 151 Code 101 operation OFF 1
102 Toner motor ON 152 Code 102 operation OFF 1
103 Polygonal motor (600dpi) ON 153 Code 103 operation OFF 1
108 Registration clutch ON 158 Code 108 operation OFF 1
109 PFP motor ON 159 Code 109 operation OFF 1
110 ADU motor (215mm/s) ON 160 Code 110 operation OFF 1
118 Laser ON 168 Code 118 operation OFF 1
120 Exit motor ON / forward rotation 170 Code 120 operation OFF 1
121 Exit motor ON / reverse rotation 171 Code 121 operation OFF 1
122 LCF motor ON 172 Code 122 operation OFF 1
201 Upper cassette feed clutch ON/OFF 3
202 Lower cassette feed clutch ON/OFF 3
203 Transport clutch (high speed) ON/OFF 3
204 Bypass feed clutch ON/OFF 3
205 Transport clutch (low speed) ON/OFF 3
206 LCF pickup solenoid ON/OFF 3
Code Function Code Function Procedure
Test mode
standby
Test mode
standby
Operation
started Operation
stopped