Panasonic UF 890 - Panafax B/W Laser User manual

Order Number : MGCS020201C1
H13
Facsimile
UF-890 / 990
© 2002 Matsushita Graphic Communication Systems, Inc.
All rights reserved. Unauthorized copying and distribution is
a violation of law.

The contents of this Service Manual are subject to change without notice.
Published in Japan.
2

Table of Contents
3
Specifications Table...................................5
1.1 Fax Function.............................................5
1.2 Printer Function ......................................13
1.3 External View..........................................14
1.4 Control Panel..........................................16
Disassembly Instruction...........................17
2.1 General Disassembly Flowchart.............17
2.2 Power Cord (1108), Telephone Line
Cable (1107), Document Return Tray
(138 and 139), Recording Paper Tray
(1106), Paper Cassette (1018)...............18
2.3 Sub Rear Cover (114), Rear Cover (108),
Left Side Cover (107), Front Cover (105),
Speaker (133)........................................19
2.4 Paper Guide Cover (110), Transmit
Guide (117), SNS Assembly (121) .........21
2.5 Low Voltage Power Supply Unit (502),
FCB PC Board (522), LCU PC Board
(519), LPC PC Board (555), Control
Panel Unit, PNL PC Board (214) ............23
2.6 Transmitter Chassis (301), Scanner
Assembly (340), LED Array Assembly
(333), Verification Stamp Assembly........27
2.7 ADF Roller (323), Pre-Feed Roller (325),
Eject Roller (330), Feed Roller (328),
Transmission Gear Assembly, Transmit
Motor (346).............................................29
2.8 Toner Sensor (639), Timing Sensor
(610), Bias Transfer Roller (630) ...........32
2.9 Fuser Unit (431), Fuser Lamp (408),
Thermistor Assembly (405), Paper Exit
Sensor (610)...........................................34
2.10 Fuser Roller (414), Pressure Roller
(409), Eject Roller (422)..........................38
2.11 Fan Duct (520), Printer Motor (650),
Motor Bracket (641)................................40
2.12 Laser Unit (429), Feed Roller (618),
Paper Feed Roller (746), Clutch Gear
Assembly (660), Paper Feed Solenoid
(744), Fan Unit (622) ..............................42
2.13 ILS PC Board (621), No Paper Actuator
(609), Catch Magnet (730)......................44
2.14 High Voltage Power Supply
(HVPS) (506)..........................................45
2.15 Parallel Port Interface Assembly (671)...46
2.16 Screw Identification Template.................47
Maintenance, Adjustments and
Check Points ...........................................48
3.1 Required Tools ......................................48
3.2 Periodic Maintenance Points..................48
3.3 Periodic Maintenance Check List...........49
3.4 Updating the Firmware...........................50
3.5 ADF Pressure.........................................51
3.6 Printer Unit Test .....................................52
3.7 General Circuit Diagram.........................53
3.8 FCB PC Board .......................................56
3.9 LPC PC Board........................................84
3.10 LCU PC Board .......................................93
3.11 SRU PC Board (Optional) ......................96
3.12 Low Voltage Power Supply PCB
(POW) ....................................................98
3.13 High Voltage Power Supply PCB
(HVPS).................................................100
3.14 CST2 PC Board (Optional)...................102
3.15 CST3 PC Board (Optional)...................106
3.16 PRT PC Board .....................................110
3.17 EP PC Board (Optional).......................115
3.18 G3B PCB (Optional).............................116
Troubleshooting.....................................117
4.1 Initial Troubleshooting Flowchart .........117
4.2 Improper LCD Display..........................118
4.3 Information Codes (INFO. CODES).....119
4.4 Printed Copy Quality Problems............132
4.5 Document Feeder (ADF)......................148
4.6 Communications ..................................151
4.7 Information Code Table........................157
4.8 Diagnostic Codes.................................164
Service Modes.......................................171
5.1 Service Mode (For Facsimile)..............171
System Description................................215
6.1 Mechanical Operation ..........................215
6.2 Electrical Circuit Explanation................226

Table of Contents
4
Exploded View & Parts List....................253
7.1 Destination Codes ................................253
7.2 Cover Assembly....................................254
7.3 Control Panel Unit.................................256
7.4 Transmitter Assembly...........................258
7.5 Fuser Unit .............................................261
7.6 Electrical Parts......................................263
7.7 Paper Transportation............................266
7.8 250 Feeder Unit....................................269
7.9 250 Paper Cassette..............................272
7.10 500 Feeder Unit....................................274
7.11 500 Paper Cassette..............................277
7.12 Packing.................................................279
7.13 Page Description Language Printer
Emulation Kit.........................................280
7.14 G3 Communication Port Kit
(UF-990 Only).......................................281
Installation..............................................282
8.1 Function Key.........................................282
8.2 Main Unit and Accessories ...................283
8.3 Installing the Accessories.....................284
8.4 Installing the Toner Cartridge ...............285
8.5 Loading the Recording Paper...............287
8.6 Connecting the Telephone Line Cable
and Power Cord....................................289
8.7 Customizing Your Machine...................291
Options and Supplies.............................296
9.1 Options and Supplies............................296
9.2 Installing Optional Feeder Unit
(UE-409057).........................................297
9.3 Installing Optional Feeder Unit
(UE-409056).........................................299
9.4 Installing Handset Kit (UE-403168) ......301
9.5 Installing the Memory Card (Flash
Memory Card and / or DRAM Card).....302
9.6 Page Description Language Printer
Emulation Kit (UE-403169)...................304
9.7 Installing G3 Communication Port Kit
(UE-407019).........................................310
Schematic Diagram...............................312
10.1 General Circuit Diagram.......................312
10.2 FCB PC Board (UF-890)......................317
10.3 FCB PC Board (UF-990)......................341
10.4 LCU PC Board .....................................365
10.5 SRU PC Board.....................................366
10.6 PNL PC Board......................................367
10.7 CCD PC Board (UF-890) .....................371
10.8 CCD PC Board (UF-990) .....................372
10.9 LPC PC Board......................................373
10.10 SNS PC Board .....................................377
10.11 ACI PC Board.......................................378
10.12 ILS PC Board .......................................379
10.13 SSN PC Board .....................................380
10.14 CST2 PC Board ...................................381
10.15 CST3 PC Board ...................................382
10.16 PRT PC Board .....................................383
10.17 EP PC Board........................................386
10.18 G3B PC Board .....................................394

5
1 Specifications Table
1.1 Fax Function
Items Description Remarks
UF-890 UF-990
Main Specifications
1 Compatibility G3 ITU-T Std. & Non-Std. (MGCS)
2 PSTN Line Port Yes
3 Leased Line Port No
4 V.24 Line Port No
5 Modem Speed 33.6 - 2.4 kbps With Automatic Fallback
6 Coding Scheme JBIG / MMR / MR / MH
7 ECM Yes Conforms to ITU-T
8 Short Protocol Yes (B, D)
9 Transmission Speed Approx. 3 sec. ITU-T Image No. 1
(A4, Std. Resolution)
10 Communication Resolution dpi x lpi (pels / mm x lines /
mm)
Transmission
Std. 203 x 98 (8 x 3.85)
Fine 203 x 196 (8 x 7.7)
S-Fine 203 x 391 (8 x 15.4)
406 x 391 (16 x 15.4)
Reception
Std. 203 x 98 (8 x 3.85)
Fine 203 x 196 (8 x 7.7)
S-Fine 203 x 391 (8 x 15.4)
406 x 391 (16 x 15.4)
Scanner Mechanism
1 Scanning Device CCD (B4)
2 Scanning Speed Approx.
1.7 sec. Approx. 0.9 sec. Letter sized document, standard resolution
3Scanning Resolution dpi x lpi (pels / mm x lines /
mm)
Std. 203 x 98 (8 x 3.85)
Fine 203 x 196 (8 x 7.7)
S-Fine 203 x 391 (8 x 15.4)
406 x 391* (16 x 15.4*)
*Interpolated
4 Document Size (Max.) 11.0 x 78.7 in (257 x 2000 mm)
5 Document Size (Min.) 5.8 x 5.0 in (148 x 128 mm)
6 Effective Scanning Width 9.9 in (252 mm)
7 Reduction XMT Yes (B4 →A4 / Letter)
8 ADF Capacity 70 sheets *
*Documents must be inserted
by staggered feed
(stairs-shape).
Face Down
A4 / Letter 0.0024”, 12 lb (0.06
mm, 45 g/m2) to 0.0039”, 16 lb
(0.10 mm, 60 g/m2)
9 Collation Stack Yes (Face Down)

6
Printer Mechanism
1 Recording Method LP
2 Recording Speed 10.2 ppm Letter
3 Recording Resolution
Copy, Fax 406 x 391 dpi
PC Printing Data 600 x 600 dpi*
300 x 300 dpi
*UF-890/990 requires 4/8MB
Page Memory (D-RAM) for
600dpi printing
4 Recording Paper Size Letter / A4 / Legal
5 Effective Printing Width 8.2 in (208 mm) Letter size for USA and
Canada
6 Recording Paper Cassette 500 sheets A4 / Letter / Legal
(20 lb. / 75 g/m2)
7Optional Recording Paper
Cassette Yes (250, 500 or 250 + 500 sheets)
8 Collation Stack Yes Memory Collation
9 Consumable See Consumable Section
Document Memory
1Standard Memory
(Flash Memory) 2 MB (120 pages) (ITU-T Image No.1, A4, Std. Resolution)
2Optional Memory
(Flash Memory) Yes (2 / 4 / 8 MB)
3 Memory Backup Yes (Permanent) No battery required
Printer Page Memory
1Optional Page Memory
(D-RAM) Yes (4 / 8 MB)
Copy Quality
1Halftone (Tx) Yes 64-Level Error Diffusion,
Fast and Quality Modes
2Super Fine: dpi x lpi
(pels / mm x lines / mm) 203 x 391 (8 x 15.4) 406 x 391* (16 x 15.4*)
*UF-890 (885) requires 4/8MB
Page Memory (D-RAM) for
Legal size printing.
3Original Contrast Selection
(Tx) Yes 3-Levels
4 Smoothing With Auto Picture /
Text Recognition
Fax, Copy Yes
PC Printing Data No
Items Description Remarks
UF-890 UF-990

7
Power Supply
1 Power Requirement 99 - 138 VAC, 47 - 63 Hz, Single Phase 100 VAC Power Supply
2 Power Consumption ES: Energy Saver
Room temperature: 77°F
(25°C)
Standby
Sleep Mode Less than 1.2 Wh
ES=On 12 Wh ± 25%
ES=Off 80 Wh ± 25%
Transmission 28 W ± 25% 37 W ± 25%
Reception 460 W ± 10%
Copy 470 W ± 10%
PC-Print 460 W ± 10%
Maximum 470 W ± 10%
Environment
1 Temperature
Operation 50 to 95°F (10 to 35°C)
Storage -4 to 104°F (-20 to 40°C)
Transport (Max. 72 hours) -4 to 122°F (-20 to 50°C)
2 Relative Humidity
Operation 15 to 70% RH
Storage 5 to 85% RH
Transport (Max. 480 hours) 15 to 85% RH
Standards
1 PSTN FCC Part 68
Industry Canada No. CS-03
2Safety UL1950 (UL60950
3rd Edition)
CSA C22.2 No. 950
UL1950
CSA C22.2 No.
950
3EMI Class B computing device
in FCC Part 15
Construction
1 Dimensions (W x D x H) 17.3 x 17.7 x 12.2 in
(440 x 450 x 310 mm) Excluding projections
2 Weight (Excluding paper) Approx. 35 lb
(16 kg) Excluding consumable supplies and options
Attachment & Accessories
Toner Cartridge
Operating Instructions
Power Cord
Tel Line Cable
Paper Tray (Rx)
Doc. Return Tray (Tx)
CD-ROM (Drivers)
Yes (1)
Yes (1)
Yes (1)
Yes (1)
Yes (1)
Yes (1)
Yes (1)
Items Description Remarks
UF-890 UF-990

8
Consumable
1 Process Type Toner Cartridge
2Yield (3% Black, ITU-T Image
No. 1 Chart)
UG-5520*:
Approx. 10,000 pages
*No compatibility with
UG-3313.
Multi Copy Mode Operation
Environment68°F(20°C),50%
RH, using A4 paper.
3 Low Toner Warning Yes Magnetic Sensor
Options
1 Recording Paper Cassette Yes (250, 500 or 250 + 500 sheets)
2Document Memory
(Flash Memory) Yes (2 / 4 / 8 MB)
3Page Memory
(D-RAM) Yes (4 / 8 MB)
4 Battery Backup 72 hours No No battery required to backup
the memory
52nd G3 Optional
Communication Port No Yes
6 Handset Yes Specific Destinations only
7 V.24/Encryption Interface No
8 PDL Yes
9 Parallel Port Interface Standard ECP Mode not supported
Printer Interface (GDI) Standard MH coding
Scanner Interface (Twain) Standard
Document Manager Standard
Document Viewer Standard
Panafax Desktop Standard Transmit Only
Status Monitor No
Class 2 Fax Modem
Interface No
PC Fax Interface (MGCS) Transmit Only
PC Fax Interface
(LaserFAX) No HydraFax / LaserFAX not supported
Languages
Control Panel
Function Label
LCD Display
Printouts
Operating Instructions
English
English
English & Spanish
English & Spanish
English
Max 2 Languages
Multi-Task Operation
1 Multi Task Operation Yes
2 Direct XMT Reserve Yes
3 Memory XMT Reserve Yes
4Number of Memory Job
Files 30 files 70 files
Items Description Remarks
UF-890 UF-990

9
Dialing/Telephone Features
1 One-Touch Keys 32
2 One-Touch / Program Keys 8
3 One-Touch Auto Dialers 40
4 Abbr. Auto Dialers 160
5 Total Auto Dialers 200
6 Max. Tel Number Digits 36
7Max. Station Name
Characters 15
8 Directory Search Dialing Yes With Directory Search key
9Full Number Dialing
(Buffered Dialing) 32 stations 70 stations
10 Direct Dialing
(Monitor Dialing) Yes
Voice Mode
(Monitor Dialing Mode)
Requires to press START to
start fax communication.
Automatic Redialing is not
available.
11 Automatic Redialing Yes
12 Manual Redialing Yes
13 Chain Dialing (Hybrid Dial) Yes On Monitor Dialing Mode only
14 Line Monitor Speaker Yes Not available for optional 2nd
G3 port
15 Pulse / Tone Dialing Yes 10 pps / DTMF
16 Pulse to Tone Change Yes
17 Flash Key Yes
Transmission Features
1 Direct Transmission Yes ADF Transmission
2 Memory Transmission Yes Page Retransmission
3Quick Memory
Transmission Yes Dialing after 1st page stored
4Multi-Station Transmission
(Sequential Broadcasting) 232 stations 270 stations
5Direct Deferred
Transmission Yes ADF Deferred Transmission
6Deferred Memory
Transmission 30 timers 70 timers
7Deferred Multi-Station
Transmission 30 timers,
232 stations 70 timers, 270 stations
8 Priority Direct Transmission Yes Priority ADF Transmission
9Priority Memory
Transmission No
10 Batch Transmission Yes Up to 5 files
Items Description Remarks
UF-890 UF-990

10
Reception Features
1 Substitute Reception Yes
2 Fixed Reduction Yes LTR / A4: 70 - 100%,
LGL: 85 -100% (in 1% Steps),
Top & Center Alignment
3 Auto Reduction Yes LTR / A4: 70 - 100%,
LGL: 85 -100% (in 1% Steps),
Top & Center Alignment
4 Overlap Printing Yes Page End Approx. 0.39 in
(10 mm)
5 Receive to Memory Yes
6Distinctive Ring Detector
(DRD) Yes Specific Destinations only
Receive Control
1 Fax / Tel Auto Switch No
2 Silent Reception No
3 External TAM Interface No
4 Remote Reception No
Polling
1 Polling Yes
2 Turnaround Polling No
3 Multi-Station Polling 232 stations 270 stations
4 Deferred Polling 30 timers 70 timers
5Deferred Multi-Station
Polling 30 timers,
232 stations 70 timers, 270 stations
6 Direct Polling Tx No
7 Memory Polling Tx Yes (1 file)
8 Preset Polling Password Yes
9Temporary Polling
Password Yes
10 Continuous Polling Yes
(Hub or Station Mode) Select the Function Parameter
03 “Continuous Polling”.
Convenience
1 Panel Display Yes 20 x 2 Alphanumeric LCD
2 Voice Contact No
3 Edit File Mode Yes With View Mode
4 Incomplete File Save Yes With View Mode
5 Automatic Cover Sheet Yes
Copy Features
1 Single Copy Yes
2 Multiple Copy Yes (Up to 99 copies) Multi Sort Copy only
3 Reduction Copy Yes
4Copying Resolution
dpi x lpi (pels / mm x lines /
mm) 406 x 391 (16 x 15.4)
Items Description Remarks
UF-890 UF-990

11
Certainty
1 Verification Stamp Yes
2 Header / Total Page Print Yes
3 Transaction Journal Yes 100 Transactions / with View
Mode
4 Comm. Journal Yes With Image
5 Last Ind. XMT Journal Yes
6 Power Failure Report No
7 Help Report No
List Printouts
1 One-Touch List Yes
2 ABBR. No. List Yes
3 Program List Yes
4 Directory Search List Yes
5 Fax Parameter List Yes
6 File List Yes With View Mode
7 Directory Sheet Yes
8 Character Code List No
Identifications
1 Logo Yes 25 Characters
2 Multiple Logo Yes 24 Logos
3 Character ID Yes 16 Characters
4 Numeric ID Yes 20 Digits
Special Communications
1 Password XMT / RCV Yes Closed Network
2 Selective Reception Yes TSI Check
3 Relay XMT Request No
4 Relay XMT Center No
5 Confidential XMT / Polling No
6 Confidential Center No
7 Mailbox XMT / Polling Yes
8 Mailbox Center 10 Boxes 20 Boxes
9 File XMT Yes
10 Fax Forward Yes Received File Transfer
11 Auto Fax Archive Yes NYSE Feature
12 Sub-Address XMT Yes T. Routing
13 Sub-Address RCV No
14 OMR-XMT No
Items Description Remarks
UF-890 UF-990

12
Others
1 Access Code Yes
2 PIN Code Access Yes PBX Access Code
3 Intelligent Redial (AI) Yes 5 Files
4 Department Code Yes 24 Codes
5 Energy Saver Mode Yes
6 Daylight Saving Time Yes USA, Canada and Germany
only
7 Self Diagnostic Function Yes
8Remote Diagnostic
Function Yes Specific Destinations only
9 Check & Call Function Yes
Firmware Update / Download
1 Remote Update No Using G3 Protocol
2 Local Update
Memory Card (F-ROM) Yes
Parallel Port No
3 Download to F-ROM Card Yes
Items Description Remarks
UF-890 UF-990

13
1.2 Printer Function
Items Description Remarks
UF-890 UF-990
Interface
1Centronics Parallel I/F
(IEEE-1284) Standard ECP Mode not supported
2 LAN (Network) No
3 USB Port No
4 IEEE-1394 No
Printer Function
1 Printing Size Letter / A4 / Legal
2Bypass No
3 Stapling No
4 Printing Resolution 300 / 600* dpi *UF-890/990 requires 4/8MB
Page Memory (D-RAM) for
600dpi printing
5 OS Win 9x / Me / NT 4.0 / 2000 / XP
6 GDI Standard MH Coding
7 PDL (PCL6) Optional
8 PDL (PostScript 2) No
9 Duplex Printing No
10 Collation Stack Yes Printer Driver setting
(Descending Output Order)
11 Status Monitor No
12 Network Printing No
13 Network Status Monitor No
14 Smoothing No
15 Applicable PC IBM PC, AT or Compatible
16 Multi-Task Operation
Printing while Fax-XMT
from Memory Yes
Printing while Fax-RCV
into Memory Yes
Fax-XMT from Memory
while Printing Yes
Fax-RCV into Memory
while Printing Yes
17 Output to Separate Tray
for Printing, Fax, Copy No
18 Font GDI: No, PCL: Yes
19 Security Print No
Scanning Function Standard
1 Halftone Yes 64 Level Error Diffusion
2 Scanning Width 9.9 in (252 mm)
3 Scanning Resolution 400 dpi Interpolated
4Driver TWAIN
5 2-Sided Scanning No

14
1.3 External View
Manufacturer's name and address Factory ID
Product complies with DHHS Rules 21
CFR Subchapter J in effect at date
of manufacture.
(For USA only)
CAUTION
!
THIS PRODUCT CONTAINS A LITHIUM BATTERY. DANGER OF EXPLOSION IF BATTERY IS
INCORRECTLY REPLACED.
REPLACE ONLY WITH THE SAME OR EQUIVALENT TYPE. DISPOSE OF USED BATTERIES ACCORDING
TO THE INSTRUCTIONS OF YOUR LOCAL SOLID WASTE OFFICIALS.

15
1.3.1 Serial Number Contents
The contents of the 11-digit Serial Number is as follows:
2 3 4 5 61
Sequential Production Number
5-Digit Sequential Production Number
00001 ~ 99999 = 1 ~ 99,999 units
A0001 ~ Y9999 = 100,000 ~ 329,976 units
(Letters “I” and “O” are skipped)
3-Digit number or alphanumeric representation
(Except Letters “I” and “O”)
For Example:
1FN
2AV = UF-890-AU = UF-885-AU
1GU
2GQ =
=UF-895-AU
UF-990-AU
Production Facility
Production Year
Starting with Year 2001, the last 2-digits of the year is
represented as: A ~ T
A : 01 (2001) K : 11 (2011)
B : 02 L : 12
C : 03 M : 13
D:04 N:14
E : 05 O : 15
F : 06 P : 16
G:07 Q:17
H:08 R:18
I : 09 S : 19
J : 10 (2010) T : 20 (2020)
Production Month
A : January G : July
B : February H : August
C : March I : September
D : April J : October
E : May K : November
F : June L : December
78910 11
Model Number and Destination Code (Main Unit)

16
1.4 Control Panel
UF-890 UF-990
SELECT
LINE
UF-890 UF-990

17
2 Disassembly Instruction
2.1 General Disassembly Flowchart
Document Return Tray
(138 & 139)
Paper Cassette
(1018)
2.2
Open Control
Panel Unit
Open Printer Cover
(XXX)
X.X
Printer Motor
(650)
2.11
Rear Cover
(XXX)
X.X
Catch Magnet
(730)
2.13
FCB PC Board
(522)
2.5
LPC PC Board
(555)
2.5
Control Panel Unit
2.5
PNL PC Board
(214)
2.5
ILS PC Board
(621)
2.13
Low Voltage PSU
(502)
2.5
Left Side Cover
(107)
2.3
Pre-Feed Cover (223)
Separation Rubber (229)
2.3
Control
Panel Unit Printer Cover
(122)
2.3
Toner Sensor
(639)
2.8
Timing Sensor
(610)
2.8
Bias Transfer Roller
(630)
2.8
No Paper Actuator
(609)
2.13
Front Cover
(105)
2.3
Paper Exit Sensor
(610)
2.9
Thermistor Assembly
(405)
2.9
Eject Roller
(422)
2.10
Pressure Roller
(409)
2.10
Fuser Roller
(414)
2.10
Fuser Lamp
(408)
2.9
Laser Unit
(429)
2.12
Feed Roller
(618)
2.12
Paper Feed Roller
(746)
2.12
Clutch Gear Assembly
(660)
2.12
Paper Feed Solenoid
(744)
2.12
Fan Unit
(622)
2.12
Speaker
(133)
2.3
Paper Guide Cover
(110)
2.4
Transmit Guide
(117)
2.4
High Voltage PSU
(506)
2.14
Transmitter Chassis
(301)
2.6
Transmission Gear
Assembly
2.7
Transmit Motor
(346)
2.7
Paper Cassette
(XXX)
X.X
Fuser Unit
(431)
2.9
Scanner Assembly
(340)
2.6
LED Array Assembly
(333)
2.6
Verification Stamp
Assembly
2.6
ADF Roller 1 (323)
Pre-Feed Roller (325)
Eject Roller (330)
Feed Roller (328)
2.7
Recording Paper Tray
(1106)
2.2
Rear Cover
(108)
2.3
Parallel Port Interface
Assembly (671)
2.15
Sub Rear Cover
(114)
2.3
LCU PC Board
(519)
2.5

18
2.2 Power Cord (1108), Telephone Line Cable (1107), Document Return Tray
(138 and 139), Recording Paper Tray (1106), Paper Cassette (1018)
(1) Turn the Power Switch "OFF".
(2) Disconnect the Power Cord (1108).
(3) Disconnect the Telephone Line Cable (1107).
(4) Remove the Document Return Tray
(138 and 139).
(5) Remove the Recording Paper Tray (1106).
(6) Remove the Paper Cassette (1018).
(2) (1)
(3)
(4)
(5)
(6)

19
2.3 Sub Rear Cover (114), Rear Cover (108), Left Side Cover (107),
Front Cover (105), Speaker (133)
(1) Open the Printer Cover (122).
(2) Remove the Toner Cartridge.
(3) Open the Control Panel Unit.
(4) 5 Screws (B1).
(5) Remove the Memory Card Cover (115) and the
Sub Rear Cover (114).
(6) 3 Screws (B1).
(7) Remove the Rear Cover (108).
(1)
(2)
(3)
(5)
(4)
(4)(4)
(4)
(6)
(7)

20
(8) Close the Control Panel Unit.
(9) 3 Screws (B1).
(10) Hold in the center and release the Latch Hook.
(11) Remove the Left Side Cover (107).
(12) Open the Control Panel Unit.
(13) 2 Screws (B1).
(14) Release the hook and remove the Front Cover
(105).
(15) Disconnect Connector on the Speaker Harness.
(16) 2 Screws (B1), 1 Screw (1Y).
(17) Remove the Speaker Assembly (133).
Cleaning the Separation Rubber (229)
(1) Open the Control Panel Unit.
(2) Open the Control Panel Unit.
(3) Remove the Separation Rubber (229).
(4) Clean the Separation Rubber (229) with a soft
cloth, soaked with isopropyl alcohol.
(9)
(11)
(10)(10)
(10)
(13)
(14)
(17)
(15)
(16) (16)
(3)
(2)