Ricoh RN-MF1 User manual

Model RN-MF1

Machine Codes: M016/M017

Field Service Manual

30 November, 2009

Safety Notices

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

Toner is 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

The machine and its peripherals must be serviced by a customer service representative who has completed

the training course on those models.

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.

• To prevent a fire or explosion, keep the machine away from flammable liquids, gases, and aerosols.

A fire or an explosion might occur.

• The Controller board on the MF model 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

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

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:

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

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.

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.

TABLE OF CONTENTS

Safety Notices.....................................................................................................................................................1

Important Safety Notices...............................................................................................................................1

Laser Safety.....................................................................................................................................................2

Symbols, Abbreviations and Trademarks.........................................................................................................3

Trademarks.....................................................................................................................................................3

1. Product Information

Specifications......................................................................................................................................................9

Machine Overview..........................................................................................................................................10

Component Layout.......................................................................................................................................10

Paper Path....................................................................................................................................................11

Drive Layout..................................................................................................................................................12

Machine Configuration....................................................................................................................................13

2. Installation

Installation Requirements.................................................................................................................................15

Environment..................................................................................................................................................15

Machine Level..............................................................................................................................................16

Machine Space Requirement.....................................................................................................................16

Power Requirements....................................................................................................................................16

Installation Procedure..................................................................................................................................17

3. Preventive Maintenance

PM Intervals......................................................................................................................................................19

PM Parts........................................................................................................................................................19

Yield Counter................................................................................................................................................19

4. Replacement and Adjustment

Before You Start...............................................................................................................................................21

Special Tools....................................................................................................................................................22

Exterior Covers.................................................................................................................................................23

Front Cover...................................................................................................................................................23

Left Cover......................................................................................................................................................24

Rear Cover...................................................................................................................................................27

Right Cover...................................................................................................................................................28

Top Cover.....................................................................................................................................................29

ADF....................................................................................................................................................................31

ADF Unit........................................................................................................................................................31

Original Tray................................................................................................................................................32

ADF Feed Unit..............................................................................................................................................32

ADF Separation Pad....................................................................................................................................33

ADF Front Cover .........................................................................................................................................33

ADF Rear Cover...........................................................................................................................................34

ADF Cover....................................................................................................................................................34

ADF Motor....................................................................................................................................................35

Original Set Sensor......................................................................................................................................36

ADF Cover Open Sensor............................................................................................................................37

ADF Feed Sensor.........................................................................................................................................38

ADF Drive Board..........................................................................................................................................39

Scanner Unit.....................................................................................................................................................40

Operation Panel...........................................................................................................................................40

Scanner Top Cover......................................................................................................................................41

Scanner Carriage Unit.................................................................................................................................42

Exposure Lamp.............................................................................................................................................44

Lamp Stabilizer Board.................................................................................................................................45

Scanner Motor.............................................................................................................................................46

Laser Unit..........................................................................................................................................................48

Caution Decal Locations.............................................................................................................................48

Laser Unit......................................................................................................................................................48

Polygon Mirror Motor.................................................................................................................................49

Paper Feed and Exit.........................................................................................................................................51

Paper Feed Roller........................................................................................................................................51

Friction Pad...................................................................................................................................................52

Paper End Sensor.........................................................................................................................................52

By-pass Feed Roller.....................................................................................................................................52

By-Pass Feed Roller Friction Pad.................................................................................................................54

By-pass Feed Sensor...................................................................................................................................55

Paper Feed Clutch.......................................................................................................................................55

Relay Clutch.................................................................................................................................................57

Registration Clutch.......................................................................................................................................57

Toner End Sensor.........................................................................................................................................57

Paper Exit Sensor.........................................................................................................................................58

Relay Sensor.................................................................................................................................................58

Inverter Sensor.............................................................................................................................................59

Registration Roller and Sensor....................................................................................................................59

Paper Transfer..................................................................................................................................................63

Transfer Roller..............................................................................................................................................63

Fusing................................................................................................................................................................64

Fusing Unit....................................................................................................................................................64

Thermostat....................................................................................................................................................66

Thermistor.....................................................................................................................................................67

Fusing Lamp..................................................................................................................................................68

Hot Roller......................................................................................................................................................69

Pressure Roller..............................................................................................................................................70

Hot Roller Stripper Pawls.............................................................................................................................70

Motors...............................................................................................................................................................72

Main Motor..................................................................................................................................................72

Duplex Motor (For M017)..........................................................................................................................72

Electrical Components.....................................................................................................................................74

Layout of PC Boards....................................................................................................................................74

PSU................................................................................................................................................................78

Charge Terminal Case................................................................................................................................82

Others................................................................................................................................................................83

Cooling Fan..................................................................................................................................................83

Speaker........................................................................................................................................................83

Quenching Lamp..........................................................................................................................................84

Image Adjustment.............................................................................................................................................85

Registration Adjustment...............................................................................................................................85

5. System Maintenance Reference

Service Program Mode....................................................................................................................................87

Overview......................................................................................................................................................87

Maintenance Mode Menu..........................................................................................................................87

Fax Service Test Menu..............................................................................................................................104

Configuration and Maintenance Page .......................................................................................................106

Overview....................................................................................................................................................106

Firmware Updating........................................................................................................................................108

Checking the Machine Firmware Version...............................................................................................108

Updating the Controller Firmware...........................................................................................................108

Updating the Engine Firmware.................................................................................................................110

Updating the Boot Loader Firmware.......................................................................................................112

Updating Failure........................................................................................................................................112

FW Update Tool Messages......................................................................................................................112

6. Troubleshooting

Service Call Conditions.................................................................................................................................117

Summary....................................................................................................................................................117

Engine SC...................................................................................................................................................117

Image Problems.............................................................................................................................................124

Overview....................................................................................................................................................124

Test Page Printing......................................................................................................................................124

Test Pattern Printing....................................................................................................................................125

Dark lines in halftone areas at 75mm Intervals.......................................................................................126

Jam..................................................................................................................................................................127

Jam Sensor Layout.....................................................................................................................................127

Jam Message List.......................................................................................................................................128

7. Energy Saving

Energy Save...................................................................................................................................................131

Energy Saver Modes................................................................................................................................131

Paper Save.....................................................................................................................................................133

Effectiveness of Duplex/Combine Function............................................................................................133