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Ricoh G108 User Manual

Ricoh G108
278 pages
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G108
SERVICE MANUAL
002011MIU
RICOH GROUP COMPANIES

Table of Contents

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Ricoh G108 Specifications

General IconGeneral
Duplex PrintingYes
Print Resolution1200 x 1200 dpi
Paper Capacity250 sheets
Network ConnectivityEthernet
Supported Operating SystemsWindows, Mac, Linux

Summary

INSTALLATION

INSTALLATION REQUIREMENTS

Specifies the environmental, level, space, and power requirements for printer installation.

INSTALLATION PROCEDURE

Details the steps for installing the printer and necessary settings for service contracts.

MOVING THE MACHINE

Provides instructions and precautions for safely moving the printer.

PREVENTIVE MAINTENANCE

USER MAINTENANCE

Lists components requiring maintenance based on page count and user actions.

SERVICE MAINTENANCE

Details maintenance tasks for components based on page count and necessary settings.

REPLACEMENT AND ADJUSTMENT

EXTERIOR COVERS

Instructions for removing and replacing the printer's external covers.

OPTICS UNIT

Details on the optics unit, including caution decals and removal procedures.

OPC BELT

Procedures for replacing the OPC belt unit, sensor, and related components.

DEVELOPMENT

Procedures for replacing toner end sensors and development unit sensors/clutches.

TRANSFER BELT

Procedures for replacing the transfer belt unit, sensors, and cleaning components.

WASTE TONER COLLECTION UNIT

Procedures for replacing waste toner bottles and holders.

PAPER FEED

Procedures for replacing paper feed rollers, separator pads, and sensors.

PAPER TRANSFER AND PAPER EXIT

Procedures for replacing transfer roller units and paper exit sensors.

FUSING UNIT AND FUSING LAMP

Procedures for replacing the fusing unit and its components like the fusing lamp.

CIRCUIT BOARD

Procedures for replacing the controller, I/O device, DC, and high voltage units.

DRIVE PATH

Procedures for replacing main and development motor drive path components.

EXHAUST FAN

Procedures for replacing optics unit, PSU, and fusing fans.

INTERLOCK SWITCH

Procedures for replacing front cover and top/rear cover interlock switches.

REGISTRATION

Procedures for adjusting leading edge and side-to-side paper registration.

TROUBLESHOOTING

SERVICE CALL

Summary of service call classes, definitions, and reset procedures.

SC CODE CLASSIFICATION

Classification of SC codes used across different machine models.

SC TABLE

Table listing SC codes, their class, error, and possible causes.

IMAGE QUALITY

Troubleshooting common image quality issues like background, missing image, and banding.

ELECTRICAL COMPONENT

Troubleshooting common issues related to sensors, fuses, and LEDs.

DUPLEX UNIT

Troubleshooting information specific to the optional duplex unit.

SERVICE TABLES

SERVICE PROGRAM MODE

Instructions for operating, selecting, and quitting service program mode.

SERVICE

Details on service SPs, tables for bit switches, and printer gamma adjustment.

ENGINE

Details on engine-related SPs for feed, drum, and mode settings.

FIRMWARE UPDATE

Procedures for updating firmware, handling SD cards, and NVRAM data.

SD CARD APPLI MOVE

Procedures for moving application programs between SD cards.

CONTROLLER SELF-DIAGNOSTICS

Information on controller self-diagnostics including power-on and detailed checks.

TONER DENSITY (MASS AMOUNT) CONTROL

Details on TMA control, switches, and development bias adjustment.

USER PROGRAM MODE

Instructions for accessing and navigating the user program mode.

DIP SWITCHES

Information on DIP switches located on the controller board.

DETAILED DESCRIPTIONS

OVERVIEW

Provides component layout, paper path, drive layout, and board layout diagrams.

TONER DENSITY (MASS AMOUNT) CONTROL

Details the TMA control process including sensor calibration and bias adjustment.

OPTICAL HOUSING UNIT

Details the optical path, laser synchronization, specifications, and safety switches.

OPC BELT

Details on the OPC belt, its drive, cleaning, sensors, and quenching.

DEVELOPMENT UNIT

Details on the development unit's overview, sensors, drive, and bias.

TRANSFER BELT

Details on the transfer belt's drive, sensors, cleaning, and waste toner collection.

PAPER TRAY UNIT

Details on paper tray overview, lift, feed, size detection, and sensors.

PAPER REGISTRATION AND PAPER TRANSFER

Details on paper registration and the paper transfer process.

FUSING UNIT

Details on the fusing unit's overview, drive, pressure, process, and temperature control.

PAPER EXIT UNIT

Details on the paper exit unit's drive and sensors.

CONTROLLER

Details on the controller overview, board layout, functions, and network protection.

ETHERNET BOARD

Details on the Ethernet board layout and its interface.

USB 2.0

General features, plug and play, hot plugging, and connectors for USB 2.0.

IEEE 802.11B (WIRELESS LAN)

Specifications, modes, security features, and troubleshooting for wireless LAN.

BLUETOOTH

Specifications, block diagram, communication, and security features for Bluetooth.

SPECIFICATIONS

GENERAL SPECIFICATIONS

Provides key specifications like print speed, resolution, interfaces, and paper capacity.

SUPPORTED PAPER SIZES

Lists supported paper sizes for various units and regions.

SOFTWARE ACCESSORIES

Details supported printer drivers and utility software.

MACHINE CONFIGURATION

Lists the printer's units, EDP codes, diagrams, and remarks.

OPTIONAL EQUIPMENT

Specifications for optional paper tray, legal paper tray, and duplex units.

SAFETY AND SYMBOLS

REPLACEMENT PROCEDURE SAFETY

Safety precautions to be taken before performing replacement procedures.

SYMBOLS USED IN THIS MANUAL

Explanation of symbols used throughout the manual.

PAPER FEED UNIT G389

REPLACEMENT AND ADJUSTMENT

Procedures for replacing exterior covers, feed rollers, separator pads, and sensors.

DETAILS

Detailed explanations of paper size detection, paper lift, paper feed, and end detection.

DUPLEX UNIT G390

REPLACEMENT AND ADJUSTMENT

Procedures for replacing exterior covers, paper guides, rollers, sensors, and switches.

DETAILED SECTION DESCRIPTIONS

Details component layout, paper path, drive layout, duplex process, and safety switches.

TROUBLESHOOTING

Troubleshooting common issues like loose connections and paper jams.

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