Ricoh P C300W Quick start guide

P C300W/C301W,
M C250FWB/C250FW
Machine Code:
M0CS/M0CW/M0CX/M0CZ
Field Service Manual
Ver 1.0
Latest Release: July, 2019
Initial Release: July, 2019
(c) 2019 Ricoh Co.,Ltd.

Important Safety Notices
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.
General Safety Instructions
For your safety, please read this manual carefully before you use this product. Keep this manual handy
for future reference.
Safety Information
Always obey the following safety precautions when using this product.
Safety During Operation
In this manual, the following important symbols and notations are used.
[A]: ON
[B]: OFF
[C]: Push ON/Push OFF
[D]: Standby
Switches and Symbols
Where symbols are used on or near switches on machines for Europe and other areas, the meaning of
each symbol conforms with IEC60417.

Safety
Prevention of Physical Injury
1. Before disassembling or assembling parts of the machine and peripherals, make sure that the
machine and peripheral power cords are unplugged.
2. The plug should be near the machine and easily accessible.
3. Note that some components of the machine and the paper tray unit are supplied with electrical
voltage even if the main power switch is turned off.
4. Always unplug the power cord from the power source before you move the product. Before you
move the machine, arrange the power cord so it will not fall under the machine.
5. Disconnect all peripheral units (finisher, LCT, etc.) from the mainframe before you move the
machine.
6. 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.
7. 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.
8. 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.
9. To prevent a fire or explosion, keep the machine away from flammable liquids, gases, and
aerosols.
10. Do not use flammable sprays or solvent in the vicinity of the machine. Also, avoid placing these
items in the vicinity of the machine. Doing so could result in fire or electric shock.
11. To avoid fire or explosion, never use an organic cleaner near any part that generates heat.
12. Clean the floor completely after accidental spillage of silicone oil or other materials to prevent
slippery surfaces that could cause accidents leading to hand or leg injuries.
13. Never remove any safety device unless it requires replacement. Always replace safety devices
immediately.
14. Never do any procedure that defeats the function of any safety device.
15. Modification or removal of a safety device (fuse, switch, etc.) could lead to a fire and personal
injury. Always test the operation of the machine to ensure that it is operating normally and safely
after removal and replacement of any safety device.
16. For replacements use only the correct fuses or circuit breakers rated for use with the machine.
Using replacement devices not designed for use with the machine could lead to a fire and personal
injuries.
17. For machines installed with the ADF/ARDF:
When a thick book or three-dimensional original is placed on the exposure glass and the ARDF
cover is lowered, the back side of the ARDF rises up to accommodate the original. Therefore, when
closing the ARDF, please be sure to keep your hands away from the hinges at the back of the
ARDF.
18. When using a vacuum cleaner around the machine, keep others away from the cleaner, especially

small children.
19. For machines installed with the anti-tip components:
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.
20. NEVER touch the AC circuits on the PSU board to prevent electric shock caused by residual
charge. Residual charge of about 100V-400V remains in the AC circuits on the PSU board for
several months even when the board has been removed from the machine after turning off the
machine power and unplugging the power cord.
Health Safety Conditions
1. For the machines installed with the ozone filters:
•Never operate the machine without the ozone filters installed.
•Always replace the ozone filters with the specified types at the proper intervals.
2. The machine, which use high voltage power source, can generate ozone gas. High ozone density
is harmful to human health. Therefore, locate the machine in a large well ventilated room that has
an air turnover rate of more than 50m3/hr/person.
3. Toner and developer are non-toxic, but if you get either of them in your eyes by accident, it may
cause temporary eye discomfort. Try to remove with eye drops or flush with water as first aid. If
unsuccessful, get medical attention.
Observance of Electrical Safety Standards
1. The machine and its peripherals must be installed and maintained by a customer service
representative who has completed the training course on those models with exceptions on some
machines where the installation can be handled by the user.
Safety and Ecological Notes for Disposal
•Do not incinerate toner bottles or used toner. Toner dust may ignite suddenly when exposed to an
open flame.
•Dispose of used toner, developer, organic photoconductors, and AIO unit in accordance with local
regulations. (These are non-toxic supplies.)
•Dispose of replaced parts in accordance with local regulations.
•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.
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 used batteries in accordance
with the manufacturer’s instructions.

Handling Toner
•Work carefully when removing paper jams or replacing toner bottles or cartridges to avoid spilling
toner on clothing or the hands.
•If toner is inhaled, immediately gargle with large amounts of cold water and move to a well-
ventilated location. If there are signs of irritation or other problems, seek medical attention.
•If toner gets on the skin, wash immediately with soap and cold running water.
•If toner gets into the eyes, flush the eyes with cold running water or eye wash. If there are signs of
irritation or other problems, seek medical attention.
•If toner is swallowed, drink a large amount of cold water to dilute the ingested toner. If there are
signs of any problem, seek medical attention.
•If toner spills on clothing, wash the affected area immediately with soap and cold water. Never use
hot water! Hot water can cause toner to set and permanently stain fabric.
•Always store toner and developer supplies such as toner and developer packages, cartridges,
bottles (including used toner and empty bottles and cartridges), and AIO unit out of the reach of
children.
•Always store fresh toner supplies or empty bottles or cartridges in a cool, dry location that is not
exposed to direct sunlight.
•Do not use a vacuum cleaner to remove spilled toner (including used toner). Vacuumed toner may
cause a fire or explosion due to sparks or electrical contact inside the cleaner. However, it is
possible to use a cleaner designed to be dust explosion-proof. If toner is spilled over the floor,
sweep up spilled toner slowly and clean up any remaining toner with a wet cloth.
Handling the development unit cooling system
For the machines installed the development cooling system:
1. The development unit cooling system circulates propylene glycol from a sealed tank through hoses
that pass behind cooling plates on the sides of each development unit.
2. The coolant tank is located at the bottom of the cooling box on the back of the main machine.
3. Always obey local laws and regulations if you need to dispose of a tank or the propylene glycol
coolant.
4. The tank must never be emptied directly into a local drainage system, river, pond, or lake.
5. Contact a professional industrial waste disposal organization and ask them to dispose of the tank.
Lithium Batteries for Taiwan

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 FOR LASER UNIT
WARNING:
Turn off the main switch before attempting any of the procedures in the Laser Unit section. Laser
beams can seriously damage your eyes.
Safety Instructions for the Color Controller
Fuse
The color controller uses a double pole fuse. If this fuse blows, be sure to replace it with an identical
fuse.
Batteries
Always replace a battery with the same type of battery prescribed for use with the color controller unit.
Replacing a battery with any type other than the one prescribed for use could cause an explosion.
•Never discard used batteries by mixing them with other batteries or other refuse.
•Always remove used batteries from the work site and dispose of them in accordance with local
laws and regulations regarding the disposal of such items.

Symbols and Abbreviations
This manual uses several symbols and abbreviations. The meaning of those symbols and abbreviations
are as follows:
Symbol
What it means
Clip ring
Screw
Connector
Clamp
E-ring
Flexible flat cable (FFC)
Timing belt
SEF
Short edge feed
LEF
Long edge feed
K
Black
C
Cyan
M
Magenta
Y
Yellow
B/W, BW
Black and White
FC
Full color
[A] Short edge feed (SEF)
[B] Long edge feed (LEF)
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Trademarks
Adobe and Acrobat are either registered trademarks or trademarks of Adobe Systems Incorporated in
the United States and/or other countries.
Android, Google Chrome, and Google Play are trademarks or registered trademarks of Google LLC.
OS X, macOS, TrueType, App Store, and Safari are trademarks of Apple Inc., registered in the U.S. and
other countries.
Firefox® is a registered trademark of the Mozilla Foundation.
iOS is a trademark or registered trademark of Cisco in the U.S. and other countries and is used under
license.
Java is a registered trademark of Oracle and/or its affiliates.
LINUX® is the registered trademark of Linus Torvalds in the U.S. and other countries.
Microsoft®, Windows®, Windows Server®, and Internet Explorer® are either registered trademarks or
trademarks of Microsoft Corporation in the United States and/or other countries.
PCL® is a registered trademark of Hewlett-Packard Company.
QR Code is a registered trademark of DENSO WAVE INCORPORATED in Japan and in other
countries.
Red Hat is a registered trademark of Red Hat, Inc.
Wi-Fi® and Wi-Fi Direct® are registered trademarks of Wi-Fi Alliance.
The proper names of Internet Explorer 9, 10 and 11 are as follows:
•Windows® Internet Explorer® 9
•Internet Explorer® 10
•Internet Explorer® 11
The proper name of Edge is Microsoft® EdgeTM.
The proper names of the Windows operating systems are as follows:
•The product names of Windows 7 are as follows:
Microsoft® Windows® 7 Home Premium
Microsoft® Windows® 7 Professional
Microsoft® Windows® 7 Ultimate
Microsoft® Windows® 7 Enterprise
•The product names of Windows 8.1 are as follows:
Microsoft® Windows® 8.1
Microsoft® Windows® 8.1 Pro
Microsoft® Windows® 8.1 Enterprise
•The product names of Windows 10 are as follows:
Microsoft® Windows® 10 Home Premium
Microsoft® Windows® 10 Pro
Microsoft® Windows® 10 Enterprise
Microsoft® Windows® 10 Education

•The product names of Windows Server 2008 are as follows:
Microsoft® Windows Server® 2008 Standard
Microsoft® Windows Server® 2008 Enterprise
•The product names of Windows Server 2008 R2 are as follows:
Microsoft® Windows Server® 2008 R2 Standard
Microsoft® Windows Server® 2008 R2 Enterprise
•The product names of Windows Server 2012 are as follows:
Microsoft® Windows Server® 2012 Foundation
Microsoft® Windows Server® 2012 Essentials
Microsoft® Windows Server® 2012 Standard
•The product names of Windows Server 2012 R2 are as follows:
Microsoft® Windows Server® 2012 R2 Foundation
Microsoft® Windows Server® 2012 R2 Essentials
Microsoft® Windows Server® 2012 R2 Standard
•The product names of Windows Server 2016 are as follows:
Microsoft® Windows Server® 2016 Standard
Microsoft® Windows Server® 2016 Essentials
Other product names used herein are for identification purposes only and might be trademarks of their
respective companies. We disclaim any and all rights to those marks.
Microsoft product screen shots reprinted with permission from Microsoft Corporation.
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1
Table of Contents
1. Product Information...........................................................................................................................7
Specifications .......................................................................................................................................7
Machine Configuration..........................................................................................................................8
Main Machine ...................................................................................................................................8
Optional Equipment ..........................................................................................................................8
2. Installation.........................................................................................................................................9
Installation Requirements.....................................................................................................................9
Environment......................................................................................................................................9
Machine level....................................................................................................................................9
Machine Space Requirements........................................................................................................10
Power Requirements ......................................................................................................................11
Installation Procedure.........................................................................................................................12
Settings for @Remote Service ...........................................................................................................13
3. Preventive Maintenance .................................................................................................................17
Preventive Maintenance.....................................................................................................................17
Cleaning Points ..................................................................................................................................18
Image Quality Standards....................................................................................................................23
Paper Transfer Quality Standards ......................................................................................................24
4. Replacement and Adjustment.........................................................................................................25
General Cautions................................................................................................................................25
Special Tools......................................................................................................................................26
Exterior Covers...................................................................................................................................27
Rear Cover .....................................................................................................................................27
Operation Panel..............................................................................................................................29
Right Cover.....................................................................................................................................31
Left Cover.......................................................................................................................................31
Front Cover Unit..............................................................................................................................32
ADF/Scanner Unit (MF Model Only)...................................................................................................34
ADF/Scanner Assembly..................................................................................................................34
Extension Tray/Original Tray ..........................................................................................................39
ADF Front Cover.............................................................................................................................40
ADF Rear Cover .............................................................................................................................41
ADF Separation Pad.......................................................................................................................42
ADF Feed Roller.............................................................................................................................43
ADF Pick-up Roller .........................................................................................................................43
Transport Roller..............................................................................................................................44
Back CIS/Back ADF Exposure Glass..............................................................................................46

2
Laser Unit...........................................................................................................................................52
Caution Decal Locations.................................................................................................................52
Laser Unit .......................................................................................................................................52
AIO (All In One) Cartridge...................................................................................................................56
AIO Cartridge..................................................................................................................................56
Black Drum Motor (M2)...................................................................................................................56
Color Drum Motor (M1)...................................................................................................................60
Image Transfer...................................................................................................................................62
Waste Toner Bottle.........................................................................................................................62
Image Transfer Belt Unit.................................................................................................................62
ITB Cleaning Unit............................................................................................................................64
Waste Toner Collection Motor (M7)................................................................................................64
ITB Contact Motor (M6) ..................................................................................................................65
ITB Contact Sensor (S6).................................................................................................................67
TM/P Sensor (S8) Unit....................................................................................................................67
Waste Toner Overflow Sensor (S9)................................................................................................69
Waste Toner Bottle Set Sensor (S10).............................................................................................71
Image Fusing......................................................................................................................................73
Fusing Unit......................................................................................................................................73
Fusing Upper Cover........................................................................................................................74
Fusing Lower Cover........................................................................................................................74
Fusing Entrance Sensor (S2)..........................................................................................................75
Fusing Thermostat (TH1)................................................................................................................75
Fusing NC Sensor (S1)...................................................................................................................76
Pressure Roller Thermistor (End) (TH4).........................................................................................76
Pressure Roller Thermistor (Center) (TH3).....................................................................................78
Fusing Sleeve Belt Unit...................................................................................................................79
Pressure Roller...............................................................................................................................82
Fusing Thermopile (TH2)................................................................................................................83
Paper Feed and Transfer....................................................................................................................84
Paper Transfer Unit.........................................................................................................................84
Transfer Roller................................................................................................................................85
Registration Roller ..........................................................................................................................86
Paper Feed Clutch (CL1)................................................................................................................87
Paper Transport Motor (M3) ...........................................................................................................87
Fusing Motor (M4)...........................................................................................................................88
Registration Clutch (CL2)................................................................................................................93
Paper Feed Roller...........................................................................................................................93
Separation Pad...............................................................................................................................94

3
Paper Exit Roller.............................................................................................................................95
Paper Exit Sensor (S5)...................................................................................................................96
Paper End Sensor (S3)...................................................................................................................97
Registration Sensor (S4).................................................................................................................98
Duplex Motor (M5)..........................................................................................................................98
Electrical Components......................................................................................................................103
FCU (PCB8) (MF Model Only)......................................................................................................103
Speaker (MF Model Only).............................................................................................................104
Engine Board (EGB) (PCB1) ........................................................................................................104
EEPROM on the EGB...................................................................................................................107
Controller Board (PCB2)...............................................................................................................109
AC Detection Board (PCB5) .........................................................................................................110
HVPS (High Voltage Power Supply) (PCB3) ................................................................................113
Temperature/Humidity Sensor (S7) ..............................................................................................114
Fusing Thermopile Anti-condensation Fan (FAN4).......................................................................114
Interlock Switches (SW1/SW2/SW3) ............................................................................................114
Fusing Fan (FAN2) .......................................................................................................................115
LSU Fan (FAN1)...........................................................................................................................116
PSU Cooling Fan (FAN3)..............................................................................................................116
ID Chip Board (PCB6)...................................................................................................................117
PSU (PCB4)..................................................................................................................................121
OPU (PCB7) .................................................................................................................................125
5. System Maintenance ....................................................................................................................127
SP Mode Tables (Printer Model) ......................................................................................................127
Overview.......................................................................................................................................127
Display Info...................................................................................................................................127
Engine Maintenance.....................................................................................................................128
Factory Default .............................................................................................................................140
CTL Maintenance..........................................................................................................................140
System Maintenance ....................................................................................................................140
Test Pattern..................................................................................................................................140
@Remote......................................................................................................................................141
SP Mode Tables (MF Model)............................................................................................................145
Overview.......................................................................................................................................145
Information Display.......................................................................................................................145
Prints Report.................................................................................................................................146
Engine Service Setting..................................................................................................................146
Scanner Service Setting ...............................................................................................................159
Fax Service Setting.......................................................................................................................160

4
CTL SP.........................................................................................................................................164
Test Pattern..................................................................................................................................165
@Remote......................................................................................................................................166
Calibrating the LCD (MF Model Only)...............................................................................................169
Fax Service Test Menu (MF Model Only).........................................................................................172
Print List/Report................................................................................................................................173
Types of Lists/Reports..................................................................................................................173
Printing Reports............................................................................................................................173
Report Examples ..........................................................................................................................174
Test Page .....................................................................................................................................180
Firmware Updating ...........................................................................................................................182
Before Updating the Firmware......................................................................................................182
Updating the Controller Firmware.................................................................................................183
Updating the Engine Firmware .....................................................................................................186
Capturing the Debug Logs................................................................................................................190
6. Troubleshooting............................................................................................................................192
Service Call ......................................................................................................................................192
Service Call Conditions.................................................................................................................192
SC 1xx (Other Error).....................................................................................................................192
SC 2xx (Image Writing).................................................................................................................193
SC 3xx (Around the Drum)............................................................................................................196
SC 4xx (Image Transfer)...............................................................................................................197
SC 5xx ( Paper Feed and Fusing).................................................................................................200
SC 6xx (Device Communication)..................................................................................................215
SC 9XX (Other Error)....................................................................................................................220
Fax Error Code (MF Model Only) .....................................................................................................222
Fax Error Code Structure..............................................................................................................222
Fax Error Code Table ...................................................................................................................223
Jam Detection...................................................................................................................................225
Jam Detection...............................................................................................................................225
Transport Path Length..................................................................................................................226
Paper Delivery Problems..................................................................................................................228
Image Has Shifted Out of Position................................................................................................228
Poor Paper Transport ...................................................................................................................228
Poor Paper Feed...........................................................................................................................230
Bypass Paper Skew......................................................................................................................231
Image Quality Problems ...................................................................................................................233
Vertical Streaking..........................................................................................................................233
Horizontal Lines............................................................................................................................235

5
Spotted Images.............................................................................................................................236
Uneven Color................................................................................................................................237
Other Causes of Dirty Copies .......................................................................................................239
Problem at Regular Intervals ........................................................................................................240
Irregular, Uneven Coverage..........................................................................................................241
Abraded Images............................................................................................................................241
Other Information..............................................................................................................................243
Spurious Noise .............................................................................................................................243
How to Confirm Information on the Toner ID Chip........................................................................243
Machine Operation with Toner Level Alert....................................................................................246
Estimated Toner Yield for Each Print Condition............................................................................246
Curl Preventive Mode Precautions................................................................................................247
When "Density Sensor Require Cleaning" Message Does Not Disappear ...................................247
7. Detailed Descriptions....................................................................................................................249
Guidance for Those Who are Familiar with Predecessor Products ..................................................249
Machine Overview............................................................................................................................251
Component Layout........................................................................................................................251
Paper Path....................................................................................................................................252
Drive Layout..................................................................................................................................252
Electrical Component....................................................................................................................253
ADF (MF Model Only).......................................................................................................................258
Overview.......................................................................................................................................258
Mechanism ...................................................................................................................................258
Scanner (MF Model Only).................................................................................................................260
Overview.......................................................................................................................................260
Mechanism ...................................................................................................................................260
Laser Exposure ................................................................................................................................261
Overview.......................................................................................................................................261
Mechanism ...................................................................................................................................261
MUSIC (Mirror Unit Skew and Interval Correction) .......................................................................263
AIO Cartridge....................................................................................................................................264
Overview.......................................................................................................................................264
Mechanism ...................................................................................................................................265
Process Control................................................................................................................................269
Process Control Flow....................................................................................................................269
Process Control Timing and Triggers............................................................................................270
Image Transfer.................................................................................................................................272
Overview.......................................................................................................................................272
Mechanism ...................................................................................................................................272

6
Image Fusing....................................................................................................................................276
Overview.......................................................................................................................................276
Mechanism ...................................................................................................................................276
Paper Feed.......................................................................................................................................280
Overview.......................................................................................................................................280
Mechanism ...................................................................................................................................280
Paper Exit and Duplex......................................................................................................................283
Overview.......................................................................................................................................283
Mechanism ...................................................................................................................................284
Boards..............................................................................................................................................285
Block Diagram ..............................................................................................................................285
Board Outline................................................................................................................................286

1.Product Information
7
1.Product Information
Specifications
See “Appendices” for the following information:
•General Specifications
•Supported Paper Sizes

1.Product Information
8
Machine Configuration
Main Machine
Name
Machine
Code
PPM (Single-
sided mode)
Function
Operation
Panel
Fax
Area
P C300W
M0CS
BW/FC:
25ppm (A4/LT)
Printer
4–line LCD
Not
Supported
For EU/AA,
TWN, CHN
P C301W
M0CW
BW/FC:
25ppm (A4/LT)
Printer
4–line LCD
Not
Supported
For NA, EU/AA
M
250FWB
M0CX
BW/FC:
25ppm (A4/LT)
4 in 1
4.3 inch touch
panel
Supported
For NA, EU/AA,
TWN, CHN
M 250FW
M0CZ
BW/FC:
25ppm (A4/LT)
4 in 1
4.3 inch touch
panel
Supported
For NA, EU/AA
Note: Supported AIO
Black/Color AIO
P C300W
P C301W
M 250FWB
M 250FW
High Yield AIO (7.2K/6.6K)
Short Yield AIO (2.3K/2.3K)
Optional Equipment
No.
Name
Machine Code
Paper Capacity (80 g/m2)
Remarks
1
Paper Feed Unit TK1220
G849-50
500 sheets
Common