Ricoh Aficio SP C830DN, Aficio SP C831DN Field Service Manual. Security Guide. User Guide

Model AP-P3

Machine Code: M124/M125

Field Service Manual

14 September, 2012

Subject to change

Important Safety Notices

Prevention of Physical Injury

1.Before disassembling or assembling parts of the machine and peripherals, make sure that the machine power cord is unplugged.

2.The wall outlet should be near the machine and easily accessible.

3.If any adjustment or operation check has to be made with exterior covers off or open while the main switch is turned on, keep hands away from electrified or mechanically driven components.

4.The machine drives some of its components when it completes the warm-up period. Be careful to keep hands away from the mechanical and electrical components as the machine starts operation.

5.The inside and the metal parts of the fusing unit become extremely hot while the machine is operating. Be careful to avoid touching those components with your bare hands.

Health Safety Conditions

1.Toner and developer are non-toxic, but if you get either of them in your eyes by accident, it may cause temporary eye discomfort. Immediately wash eyes with plenty of water. If unsuccessful, get medical attention.

2.The machine, which use high voltage power source, can generate ozone gas. High ozone density is harmful to human health. Therefore, the machine must be installed in a well-ventilated room.

Observance of Electrical Safety Standards

The machine and its peripherals must be serviced by a customer service representative who has completed the training course on those models.

•Keep the machine away from flammable liquids, gases, and aerosols. A fire or an explosion might occur.

•The Controller board on this machine contains a lithium battery. The danger of explosion exists if a battery of this type is incorrectly replaced. Replace only with the same or an equivalent type recommended by the manufacturer. Discard batteries in accordance with the manufacturer's instructions and local regulations.

•The optional fax and memory expansion units contain lithium batteries, which can explode if replaced incorrectly. Replace only with the same or an equivalent type recommended by the

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manufacturer. Do not recharge or burn the batteries. Used batteries must be handled in accordance with local regulations.

Safety and Ecological Notes for Disposal

1.Do not incinerate toner bottles or used toner. Toner dust may ignite suddenly when exposed to an open flame.

2.Dispose of used toner, the maintenance unit which includes developer or the organic photoconductor in accordance with local regulations. (These are non-toxic supplies.)

3.Dispose of replaced parts in accordance with local regulations.

4.When keeping used lithium batteries in order to dispose of them later, do not put more than 100 batteries per sealed box. Storing larger numbers or not sealing them apart may lead to chemical reactions and heat build-up.

Laser Safety

The Center for Devices and Radiological Health (CDRH) prohibits the repair of laser-based optical units in the field. The optical housing unit can only be repaired in a factory or at a location with the requisite equipment. The laser subsystem is replaceable in the field by a qualified Customer Engineer. The laser chassis is not repairable in the field. Customer engineers are therefore directed to return all chassis and laser subsystems to the factory or service depot when replacement of the optical subsystem is required.

•Use of controls, or adjustment, or performance of procedures other than those specified in this manual may result in hazardous radiation exposure.

•WARNING: Turn off the main switch before attempting any of the procedures in the Laser Optics Housing Unit section. Laser beams can seriously damage your eyes.

•CAUTION MARKING:

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The Aim of Anti-tip Components and Precautions

The anti-tip components are necessary for meeting the requirements of IEC60950-1, the international standard for safety.

The aim of these components is to prevent the products, which are heavy in weight, from toppling as a result of people running into or leaning onto the products, which can lead to serious accidents such as persons becoming trapped under the product. (U.S.: UL60950-1, Europe: EN60950-1)

Therefore, removal of such components must always be with the consent of the customer. Do not remove them at your own judgment.

Warnings, Cautions, Notes

In this manual, the following important symbols and notations are used.

•A Warning indicates a potentially hazardous situation. Failure to obey a Warning could result in death or serious injury.

•A Caution indicates a potentially hazardous situation. Failure to obey a Caution could result in minor or moderate injury or damage to the machine or other property.

•Obey these guidelines to avoid problems such as misfeeds, damage to originals, loss of valuable data and to prevent damage to the machine.

•This information provides tips and advice about how to best service the machine.

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Symbols, Abbreviations and Trademarks

This manual uses several symbols and abbreviations. The meaning of those symbols and abbreviations are as follows:

	See or Refer to
	Clip ring
	Screw
	Connector
	Clamp
	E-ring
SEF	Short Edge Feed
LEF	Long Edge Feed

[A]Short Edge Feed (SEF)

[B]Long Edge Feed (LEF)

Trademarks

Microsoft®, Windows®, and MS-DOS® are registered trademarks of Microsoft Corporation in the United States and /or other countries.

PostScript® is a registered trademark of Adobe Systems, Incorporated. PCL® is a registered trademark of Hewlett-Packard Company. Ethernet® is a registered trademark of Xerox Corporation.

PowerPC® is a registered trademark of International Business Machines Corporation.

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Other product names used herein are for identification purposes only and may be trademarks of their respective companies. We disclaim any and all rights involved with those marks.

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TABLE OF CONTENTS
Important Safety Notices...................................................................................................................................	1
Prevention of Physical Injury..........................................................................................................................	1
Health Safety Conditions...............................................................................................................................	1
Observance of Electrical Safety Standards.................................................................................................	1
Safety and Ecological Notes for Disposal...................................................................................................	2
Laser Safety.....................................................................................................................................................	2
The Aim of Anti-tip Components and Precautions.......................................................................................	3
Warnings, Cautions, Notes...........................................................................................................................	3
Symbols, Abbreviations and Trademarks.........................................................................................................	4
Trademarks.....................................................................................................................................................	4
1. Product Information
Specifications....................................................................................................................................................	19
Product Overview.............................................................................................................................................	20
Component Layout.......................................................................................................................................	20
Paper Path....................................................................................................................................................	21
Drive Layout..................................................................................................................................................	22
Machine Codes and Peripherals Configuration............................................................................................	24
Guidance for Those Who are Familiar with Predecessor Products..............................................................	27
2. Installation
Installation Requirements.................................................................................................................................	29
Environment..................................................................................................................................................	29
Machine Level..............................................................................................................................................	30
Machine Space Requirements....................................................................................................................	30
Power Requirements....................................................................................................................................	31
Printer Installation.............................................................................................................................................	32
Power Socket for Peripherals......................................................................................................................	32
Installation Flow Chart.................................................................................................................................	32
Installation Procedure..................................................................................................................................	34
Unpacking...........................................................................................................................................	34
Installing the Toner..............................................................................................................................	38
Loading Paper.....................................................................................................................................	39
Turning Power On...............................................................................................................................	41
Selecting the Panel Display Language..............................................................................................	42

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Printing the Test Page..........................................................................................................................	43
Settings Relevant to the Service Contract..........................................................................................	43
Settings for @Remote Service (Embedded RC Gate).......................................................................	44
Meter Click Charge.....................................................................................................................................	47
External USB Keyboard (External Option)................................................................................................	50
Moving the Machine...................................................................................................................................	51
Transporting the Machine...........................................................................................................................	52
Optional Unit Combinations............................................................................................................................	53
Machine Options.........................................................................................................................................	53
Controller Options.......................................................................................................................................	53
1200 LCT (D631)............................................................................................................................................	55
Component Check.......................................................................................................................................	55
Installation Procedure..................................................................................................................................	56
Side Fence Position Change.......................................................................................................................	58
Bridge Unit (D634)..........................................................................................................................................	60
Component Check.......................................................................................................................................	60
Installation Procedure..................................................................................................................................	60
2000-sheet booklet finisher (D637) /3000-sheet finisher (D636)............................................................	64
Accessory Check..........................................................................................................................................	64
Installation Procedure..................................................................................................................................	65
Support Tray Installation.....................................................................................................................	70
Punch Unit (D570)...........................................................................................................................................	71
Component Check.......................................................................................................................................	71
Installation Procedure..................................................................................................................................	72
Output Jogger Unit (B703).............................................................................................................................	77
Accessories...................................................................................................................................................	77
Installation....................................................................................................................................................	77
Mail Bin (M413)..............................................................................................................................................	80
Component Check.......................................................................................................................................	80
Installation Procedure..................................................................................................................................	81
Anti-Condensation Heater...............................................................................................................................	88
Component Check.......................................................................................................................................	88
Installation Procedure..................................................................................................................................	89

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For installing the tray heater in the main machine	............................................................................89
For installing the tray heater in D580................................................................................................	90
For Installing the tray heater in D581................................................................................................	92
Controller Options............................................................................................................................................	96
Overview......................................................................................................................................................	96
I/F Card Slots......................................................................................................................................	96
SD Card Slots......................................................................................................................................	96
SD Card Appli Move...................................................................................................................................	97
Overview.............................................................................................................................................	97
Move Exec...........................................................................................................................................	98
Undo Exec...........................................................................................................................................	98
3. Preventive Maintenance
Maintenance Items........................................................................................................................................	101
Touch Screen Calibration.............................................................................................................................	102
4. Replacement and Adjustment
Beforehand.....................................................................................................................................................	107
Special Tools..................................................................................................................................................	108
Image Adjustment..........................................................................................................................................	109
Registration................................................................................................................................................	109
Image Area.......................................................................................................................................	109
Leading Edge....................................................................................................................................	109
Side to Side.......................................................................................................................................	109
Adjustment Standard........................................................................................................................	109
Paper Registration Standard............................................................................................................	110
Adjustment Procedure.......................................................................................................................	110
Erase Margin Adjustment..........................................................................................................................	111
Color Registration......................................................................................................................................	112
Line Position Adjustment...................................................................................................................	112
Gamma Correction...................................................................................................................................	113
Summary............................................................................................................................................	113
Adjustment Procedure.......................................................................................................................	115
Exterior Covers...............................................................................................................................................	117
Front Door..................................................................................................................................................	117

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Left Cover...................................................................................................................................................	118
Rear Cover.................................................................................................................................................	118
Top Right and Rear Cover........................................................................................................................	119
Right Rear Cover.......................................................................................................................................	119
Operation Panel........................................................................................................................................	120
Paper Exit Cover........................................................................................................................................	122
Output Tray................................................................................................................................................	123
Ozone Filter...............................................................................................................................................	124
Ozone filter for the charge unit.......................................................................................................	124
Ozone filter for the AC Controller...................................................................................................	125
Laser Optics....................................................................................................................................................	126
Caution Decal Location............................................................................................................................	126
LD Safety Switch........................................................................................................................................	127
Error Messages.................................................................................................................................	127
Laser Optics Housing Unit........................................................................................................................	128
Preparing the new laser optics housing unit...................................................................................	128
Before removing the old laser optics housing unit.........................................................................	129
Recovery procedure for no replacement preparation of laser optics housing unit.....................	129
Removing the old laser optics housing unit.....................................................................................	130
Installing a new laser optics housing unit........................................................................................	131
After installing the new laser optics housing unit............................................................................	132
Polygon Mirror Motor and Drive Board..................................................................................................	133
Airflow Fans...............................................................................................................................................	135
Laser Optics Rear Right Thermistor...........................................................................................................	135
Image Creation..............................................................................................................................................	137
PCDU..........................................................................................................................................................	137
Drum Unit and Development Unit............................................................................................................	138
Developer..........................................................................................................................................	141
Toner Collection Bottle..............................................................................................................................	143
Second Duct Fans......................................................................................................................................	144
When reinstalling the second duct fans..........................................................................................	145
Third Duct Fan............................................................................................................................................	145
When reinstalling the third duct fan................................................................................................	146

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Toner Pump Unit........................................................................................................................................	146
When installing the new toner pump unit.......................................................................................	149
Toner End Sensor......................................................................................................................................	152
Image Transfer...............................................................................................................................................	153
Image Transfer Belt Cleaning Unit...........................................................................................................	153
Image Transfer Belt Unit............................................................................................................................	153
Image Transfer Belt....................................................................................................................................	155
When reinstalling the image transfer belt.......................................................................................	159
Paper Transfer................................................................................................................................................	162
Paper Transfer Roller Unit.........................................................................................................................	162
Paper Transfer Unit....................................................................................................................................	162
ID Sensor Board........................................................................................................................................	164
Cleaning for ID sensors....................................................................................................................	165
After installing a new ID sensor unit/board ..................................................................................	166
Temperature and Humidity Sensor..........................................................................................................	166
Drive Unit........................................................................................................................................................	167
Gear Unit...................................................................................................................................................	167
When installing the drive unit...........................................................................................................	174
Adjustment after replacing the gear unit.........................................................................................	174
Registration Motor.....................................................................................................................................	175
Paper Feed Motor.....................................................................................................................................	176
Drum/Development Motors for M, C, and Y.........................................................................................	177
Drum/Development Motor-K...................................................................................................................	178
ITB Drive Motor.........................................................................................................................................	179
Fusing/Paper Exit Motor..........................................................................................................................	179
Image Transfer Belt Contact Motor..........................................................................................................	180
Duplex Inverter Motor...............................................................................................................................	180
Pressure Roller Contact Motor..................................................................................................................	182
Duplex/By-pass Motor.............................................................................................................................	183
Paper Transfer Contact Motor..................................................................................................................	185
Toner Transport Motor..............................................................................................................................	187
Toner Collection Unit.................................................................................................................................	188
Paper Feed Clutches.................................................................................................................................	188

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Development Clutch-Y..............................................................................................................................	191
Development Clutches for M and C........................................................................................................	192
Development Clutch-K..............................................................................................................................	193
Fusing..............................................................................................................................................................	195
Fusing Unit..................................................................................................................................................	195
Fusing Exit Shutter Plate............................................................................................................................	197
Fusing Entrance Guide Plate.....................................................................................................................	197
Cleaning Requirement......................................................................................................................	199
Fusing Exit Guide Plate Cleaning Procedure...........................................................................................	199
Fusing Unit Upper Cover..........................................................................................................................	200
Fusing Unit Lower Cover...........................................................................................................................	201
Fusing Sleeve Belt Unit..............................................................................................................................	202
Oil Absorber Felt..............................................................................................................................	205
Pressure Roller............................................................................................................................................	206
Stripper Plate.............................................................................................................................................	208
Cleaning Requirement......................................................................................................................	209
Pressure Roller Thermistors........................................................................................................................	209
Pressure Roller Thermostats.......................................................................................................................	210
NC Sensors................................................................................................................................................	210
Fusing Fan..................................................................................................................................................	211
When installing the fusing fan..........................................................................................................	212
Paper Exit Fan............................................................................................................................................	212
When installing the paper exit fan..................................................................................................	213
AC Controller Board Fan..........................................................................................................................	213
When installing the AC controller fan.............................................................................................	214
Fusing Entrance Thermopiles....................................................................................................................	214
When cleaning the lens of the thermopile......................................................................................	215
Pressure Roller HP Sensor.........................................................................................................................	215
QSU fan.....................................................................................................................................................	216
Fusing Unit Shutter Plate Drive Motor......................................................................................................	218
Fusing Unit Shutter Plate Home Position Sensor......................................................................................	218
Fusing Unit Shutter Plate Drive Mechanism.............................................................................................	219
Paper Feed.....................................................................................................................................................	222

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Paper Feed Unit.........................................................................................................................................	222
Pick-Up, Feed and Separation Rollers.....................................................................................................	223
Tray 1 and Tray 2.............................................................................................................................	223
Tray Lift Motor............................................................................................................................................	224
Vertical Transport, Paper Overflow, Paper End and Paper Feed Sensor.............................................	224
Registration Sensor....................................................................................................................................	225
By-pass Paper Size Sensor and By-pass Paper Length Sensor.............................................................	226
When reinstalling the by-pass paper size sensor..........................................................................	227
By-pass Bottom Tray..................................................................................................................................	228
By-pass Paper End Sensor........................................................................................................................	231
By-pass Pick-up, Feed and Separation Roller, Torque Limiter...............................................................	232
By-pass Feed Clutch..................................................................................................................................	233
Paper Exit Unit...........................................................................................................................................	234
Fusing Exit, Paper Overflow, Junction Paper Jam and Paper Exit Sensor............................................	235
Duplex Unit.....................................................................................................................................................	237
Duplex Unit................................................................................................................................................	237
Duplex Door Sensor..................................................................................................................................	238
Duplex Entrance Sensor............................................................................................................................	239
Duplex Exit Sensor....................................................................................................................................	240
Electrical Components...................................................................................................................................	241
Boards........................................................................................................................................................	241
Controller Box closed.......................................................................................................................	241
Behind the IOB..................................................................................................................................	242
Controller Box Open........................................................................................................................	242
Controller Unit...........................................................................................................................................	243
Controller Box Right Cover.......................................................................................................................	243
Controller Box............................................................................................................................................	243
When opening the controller box...................................................................................................	243
When removing the controller box.................................................................................................	244
IOB (In/Out Board)..................................................................................................................................	247
BB (Bridge Board).....................................................................................................................................	248
BCU............................................................................................................................................................	248
When installing the new BCU..........................................................................................................	249

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PSU.............................................................................................................................................................	250
PSU bracket.......................................................................................................................................	250
PSU board.........................................................................................................................................	250
PSU fans............................................................................................................................................	251
Shutdown Switch.......................................................................................................................................	252
ITB Power Supply Board...........................................................................................................................	253
High Voltage Supply Board.....................................................................................................................	254
High Voltage Supply Board Bracket.......................................................................................................	254
AC Controller Board.................................................................................................................................	255
AC Controller Board Bracket...................................................................................................................	255
Controller Board........................................................................................................................................	256
When installing the new controller board......................................................................................	258
HDD Fan....................................................................................................................................................	258
When installing the HDD fan...........................................................................................................	259
HDD............................................................................................................................................................	259
When installing a new HDD unit.....................................................................................................	260
Toner Bottle Detection Board...................................................................................................................	260
NVRAM Replacement Procedure............................................................................................................	261
NVRAM on the BCU........................................................................................................................	261
NVRAM on the controller board.....................................................................................................	262
Tube Cooling Fan (1st Duct Fan).............................................................................................................	263
Using Dip Switches........................................................................................................................................	264
Controller Board........................................................................................................................................	264
BCU Board.................................................................................................................................................	264
5. System Maintenance
Service Program Mode.................................................................................................................................	265
SP Tables....................................................................................................................................................	265
Enabling and Disabling Service Program Mode....................................................................................	265
Entering SP Mode.............................................................................................................................	265
Exiting SP Mode...............................................................................................................................	265
Types of SP Modes....................................................................................................................................	265
SP Mode Button Summary...............................................................................................................	266
Selecting the Program Number.......................................................................................................	267

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Exiting Service Mode.......................................................................................................................	268
Service Mode Lock/Unlock............................................................................................................	268
Remarks......................................................................................................................................................	268
Display on the Control Panel Screen..............................................................................................	268
Others................................................................................................................................................	268
Service SP Table............................................................................................................................................	270
SP1-XXX (Service Mode)..........................................................................................................................	270
Engine SP Tables-1........................................................................................................................................	285
SP1-XXX (Feed).........................................................................................................................................	285
Engine SP Tables-2........................................................................................................................................	299
SP2-XXX (Drum).........................................................................................................................................	299
Engine SP Tables-3........................................................................................................................................	307
SP3-XXX (Process).....................................................................................................................................	307
Engine SP Tables-4........................................................................................................................................	327
SP5-XXX (Mode).......................................................................................................................................	327
Engine SP Tables-5........................................................................................................................................	382
SP6-XXX (Peripherals)...............................................................................................................................	382
Engine SP Tables-6........................................................................................................................................	390
SP7-XXX (Data Log)..................................................................................................................................	390
Input and Output Check................................................................................................................................	440
Input Check Table.....................................................................................................................................	440
Printer.................................................................................................................................................	440
Table 1: Paper Height Sensor..........................................................................................................	443
Table 2: Paper Size Switch (Tray 2)...............................................................................................	443
Table 3: Paper Size (By-pass Table)...............................................................................................	444
[FIN (EUP) INPUT Check] Finisher (D636/ D637).......................................................................	445
[FIN (JAK) INPUT Check] 4bin Mail Box (M413)........................................................................	447
Bridge Unit (D634)...........................................................................................................................	448
Two-Tray Paper Feed Unit (D580)/ LCT 2000 (D581)/ LCT 1200 (D631)............................	448
Output Check Table..................................................................................................................................	449
Printer.................................................................................................................................................	449
[FIN (EUP) OUTPUT Check] (Booklet) Finisher (D636/D637)....................................................	455
FIN(JAK)OUTPUT Check 4bin Mail Box (M413).........................................................................	457

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Bridge Unit (D634)...........................................................................................................................	457
4bin Mail Box (M413)....................................................................................................................	457
Two-Tray Paper Feed Unit (D580)/ LCT 2000 (D581)/ LCT 1200 (D631)............................	457
Firmware Update...........................................................................................................................................	459
Type of Firmware.......................................................................................................................................	459
Before You Begin.......................................................................................................................................	460
Updating Firmware...................................................................................................................................	461
Preparation........................................................................................................................................	461
Updating Procedure.........................................................................................................................	461
Error Messages.................................................................................................................................	462
Firmware Update Error.....................................................................................................................	462
Recovery after Power Loss...............................................................................................................	463
Updating the LCDC for the Operation Panel..........................................................................................	463
Handling Firmware Update Errors...........................................................................................................	464
Error Message Table........................................................................................................................	464
NVRAM Data Upload/Download..............................................................................................................	466
Uploading Content of NVRAM to an SD card.......................................................................................	466
Downloading an SD Card to NVRAM....................................................................................................	467
Address Book Upload/Download..............................................................................................................	469
Information List...........................................................................................................................................	469
Download..................................................................................................................................................	469
Upload.......................................................................................................................................................	470
Using the Debug Log.....................................................................................................................................	471
Overview....................................................................................................................................................	471
Switching ON and Setting UP Save Debug Log.....................................................................................	471
Retrieving the Debug Log from the HDD.................................................................................................	475
Debug Log Codes.....................................................................................................................................	476
SP5857-015 Copy SD Card-to-SD Card: Any Desired Key.......................................................	476
SP5857-016 Create a File on HDD to Store a Log......................................................................	476
SP5857-017 Create a File on SD Card to Store a Log................................................................	476
Card Save Function.......................................................................................................................................	477
Overview....................................................................................................................................................	477
Card Save:........................................................................................................................................	477

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Procedure...................................................................................................................................................	477
Error Messages..........................................................................................................................................	481
SMC List Card Save Function.......................................................................................................................	482
Overview....................................................................................................................................................	482
SMC List Card Save.........................................................................................................................	482
Procedure...................................................................................................................................................	482
File Names of the Saved SMC Lists.........................................................................................................	484
Error Messages..........................................................................................................................................	485
6. Troubleshooting
Service Call....................................................................................................................................................	487
Service Call Conditions.............................................................................................................................	487
SC Code Classification....................................................................................................................	488
SC Table.........................................................................................................................................................	491
Service Call Tables - 1..............................................................................................................................	491
SC1xx: Scanning..............................................................................................................................	491
Service Call Tables - 2..............................................................................................................................	491
SC 2xx: Exposure.............................................................................................................................	491
Service Call Tables - 3..............................................................................................................................	498
SC3xx: Image Processing – 1.........................................................................................................	498
SC3xx: Image Processing – 2.........................................................................................................	499
Service Call Tables - 4..............................................................................................................................	503
SC4xx: Image Processing - 3..........................................................................................................	503
Service Call Tables - 5..............................................................................................................................	509
SC5xx: Paper Feed and Fusing.......................................................................................................	509
Service Call Tables - 6..............................................................................................................................	529
SC6xx: Device Communication.......................................................................................................	529
Service Call Tables - 7..............................................................................................................................	543
SC7xx: Peripherals...........................................................................................................................	543
Service Call Tables - 8..............................................................................................................................	553
SC8xx: Overall System....................................................................................................................	553
Service Call Tables - 9..............................................................................................................................	569
SC9xx: Miscellaneous.....................................................................................................................	569
Process Control Error Conditions..................................................................................................................	577

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Developer Initialization Result..................................................................................................................	577
Process Control Self-Check Result............................................................................................................	578
Vsg Adjustment Result.......................................................................................................................	580
Line Position Adjustment Result.................................................................................................................	580
Troubleshooting Guide..................................................................................................................................	582
Image Quality............................................................................................................................................	582
Line Position Adjustment............................................................................................................................	584
Test.....................................................................................................................................................	585
Countermeasure list for color registration errors............................................................................	585
Stain on the Outputs..................................................................................................................................	591
Problem at Regular Intervals.....................................................................................................................	592
Toner End Recovery Error.........................................................................................................................	592
Flow Chart for the Toner End Recovery Error.................................................................................	593
Toner Bottle Detection Error......................................................................................................................	594
Solid Image or Halftone Image Error......................................................................................................	595
Recovery Procedure.........................................................................................................................	595
Problem Prevention Procedure.........................................................................................................	596
Faulty Cleaning..........................................................................................................................................	596
Black or color lines (2-3mm)...........................................................................................................	596
Band Image Between 20mm and 30mm.......................................................................................	597
Encryption Key Restoration for NVRAM..................................................................................................	597
How to restore the old encryption key to the machine..................................................................	597
How to do a forced start up with no encryption key.....................................................................	598
Other Symptoms........................................................................................................................................	599
Flowchart for the error......................................................................................................................	600
Countermeasure list for the error.....................................................................................................	600
Jam Detection.................................................................................................................................................	603
Paper Jam Display.....................................................................................................................................	603
Jam Codes and Display Codes................................................................................................................	603
Paper Size Code...............................................................................................................................	608
Sensor Locations...............................................................................................................................	610
Electrical Component Defects.......................................................................................................................	611
Sensors.......................................................................................................................................................	611

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Blown Fuse Conditions..............................................................................................................................	616
Power Supply Unit............................................................................................................................	616
AC Drive Board................................................................................................................................	616
7. Energy Saving
Energy Save...................................................................................................................................................	619
Energy Saver Modes................................................................................................................................	619
Timer Settings....................................................................................................................................	619
Return to Stand-by Mode.................................................................................................................	620
Recommendation..............................................................................................................................	620
Energy Save Effectiveness........................................................................................................................	620
Paper Save.....................................................................................................................................................	622
Effectiveness of Duplex/Combine Function............................................................................................	622
1. Duplex:..........................................................................................................................................	622
2. Combine mode:............................................................................................................................	622
3. Duplex + Combine:......................................................................................................................	623
How to calculate the paper reduction ratio ..................................................................................	623

18

1. Product Information

Specifications

See "Appendices" for the following information:

•General Specifications

•Supported Paper Sizes

•Software Accessories

•Optional Equipment

19

1. Product Information

Product Overview

Component Layout

1.	Paper exit rollers	9. Toner collection bottle
2.	Duplex unit	10.	Laser optics housing unit
3.	Fusing unit	11.	PCDU (4 colors)
4.	Paper transfer roller	12.	Image transfer belt cleaning unit
5.	Registration roller	13.	Image transfer belt unit
6.	By-pass feed table	14.	Toner bottle (4 colors)
7.	Tray 2	15.	ID sensor
8.	Tray 1	16.	Fusing sleeve belt unit

20

Product Overview

Paper Path

1.	Mail bin	8.	Tray 5: Optional LCT 1200
2.	Duplex inverter	9.	Tray 4: Optional paper feed unit
3.	Duplex feed	10.		Finisher booklet stapler (Optional)
4.	By-pass tray feed	11.		Finisher stapler (Optional)
5.	Tray 1 feed	12.		Finisher upper tray (Optional)
6.	Tray 2 feed	13.		Finisher proof tray (Optional)
7.	Tray 3: Optional paper feed unit/LCT	14.		Output tray

The 2000/3000-sheet (booklet) finisher requires the bridge unit and one from the two-tray paper feed unit or the LCT.

21

1. Product Information

Drive Layout

	1.	Toner supply clutch-K and -CMY:	Turns on/off the drive power to the toner supply unit (K and -
			CMY).
	2.	ITB (Image Transfer Belt) contact	Moves the ITB into contact and away from the color PCDUs.
	motor:
			Drives the toner attraction pumps and the toner collection coils
	3.	Toner transport motor:	from the PCDUs, from the transfer belt unit, and inside the
			toner collection bottle. Also rotates the toner bottles.
	4.	Development clutch (K, Y, M, C):	Turns on/off the drive power to the development unit (K, Y,
			M, C).
	5.	Drum/Development drive motor	Drives the color drum unit and development unit (K, Y, M, C).
	(K, Y, M, C):
	6.	Paper feed clutch:	Switches the drive power between tray 1 and tray 2.
	7.	Paper feed motor:	Drives the paper feed mechanisms (tray 1/tray 2).

22

Product Overview

	8. By-pass feed clutch:		Turns on/off the drive power to the by-pass pick-up, feed and
			separation rollers.
	9. Registration motor:		Drives the registration roller.
	10.	By-pass/duplex feed motor:	Drives the by-pass pick-up, feed and separation roller, and
			duplex transport rollers.
	11.	Paper transfer contact motor:	Moves the paper transfer roller in contact with the image
			transfer belt.
	12.	ITB drive motor:	Drives the image transfer belt unit.
	13.	Duplex inverter motor:	Drives the duplex inverter rollers and duplex transport rollers.
	14.	Fusing/paper exit motor:	Drives the fusing unit and paper exit section.

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1. Product Information

Machine Codes and Peripherals Configuration

	Item	Machine Code	Call out	Remarks
	Mainframe	M124/M125	[1]	-
	Mail bin	M413	[2]	-
	1200-sheet LCT	D631	[3]	Requires [4] or [5]
	2000-sheet LCT	D581	[4]	One from the two
	Two-tray paper feed unit	D580	[5]
	One-tray paper feed unit	D579	[6]	-
	3000-sheet finisher	D636	[7]	One from [7] and [8];
				Requires one from [4] and [5]
	2000-sheet booklet finisher	D637	[8]
	Punch unit 2/3 holes	D570-00 (NA)	-	Requires [7] or [8]
	Punch unit 2/4 holes	D570-01 (EU)	-	Requires [7] or [8]
	Punch unit 4 holes	D570-02	-	Requires [7] or [8]
		(Scandinavia)
	Bridge unit	D634	[9]	-

24

Machine Codes and Peripherals Configuration

Item	Machine Code	Call out	Remarks
Output jogger unit	B703	-	Requires [7]

	Item	Machine code	Call out	Remark
	PictBridge	D645-15
				Those cards should be
	IPDS Unit	M416-24
				installed from SD slot 2
	SD Card for Netware	M416-29		(lower).
	Printing		[A]	If multiple applications are
				required, merge all
		D640-21 (NA)
				applications in one SD card
	VM Card	D640-22 (EU)		with SP mode. ( p.97 "SD
				Card Appli Move")
		D640-23 (AA)
	IEEE 1284	B679	[B]
		M344-01 (NA)		You can only install one of
	Wireless LAN	M344-02 (EU)	[C]	these at a time.
		M344-08 (EU/AA)
	Gigabit Ethernet	M416-30	[D]	-
		D377

25

1. Product Information

	512MB Memory Option	M354-03	[E]	-
	1GB Memory Option	M416-27
	HDD*1 (250GB)	M416-28	[F]	-
	Data Overwrite Security,	-	-	Included in the controller ROM
	HDD Encryption

*1 The hard disk (M416-28) is supplied with the M125 model as standard equipment.

26

Guidance for Those Who are Familiar with Predecessor Products

Guidance for Those Who are Familiar with Predecessor Products

Machines M124/M125 are successor models to Machines G188/G189. If you have experience with the predecessor products, the following information will be of help when you read this manual.

Different Points from Predecessor Products

	Item	M124/M125	G188/G189
	Controller Type	GW+ Controller	GW Controller
	New Fusing Unit without the	Yes	No
	Decurler
	Fusing Unit	NEW QSU-DH fusing system	IH roller fusing system
	SMC data	SD card download or printing	Printing only
	Operation Panel	Tiltable Operation Panel	Stationary Operation Panel
		Includes USB/SD slot
	USB2.0/SD Slot	Standard	Optional
	Data Overwrite Security,	Included in the controller ROM	SD card
	HDD Encryption

27

1. Product Information

28