Ricoh G179 User Manual

Image Fusing
G179 6-60 SM
This model has a new temperature control theory. In previous models, the target
temperature, paper feed temperature and print ready temperature are set to the same
temperature. The machine turns the fusing lamp on and off to keep this temperature.
However, after the start of a job [A], the fusing temperature goes down [D] when the first
sheet of paper [C] goes into the fusing unit while the fusing lamp is turned off [B]. In this
case, at the lowest temperature [D], the difference between an ideal fusing temperature
and the actual fusing temperature is up to 40°C. This may cause cold offset on the first
output sheet of paper.
In the Al-P1 model, the target temperature and print ready temperature are set to the
same temperature, but the paper feed temperature is different. The machine turns on the
fusing lamp after it gets a print job [A], even if the fusing temperature is at the target
temperature or more. Because the lamp-off time [B] is shorter than previous models, the
lowest temperature [D] while feeding the first sheet of paper is kept closer to the target
CÓPIA NÃO CONTROLADA
CÓPIA NÃO CONTROLADA

Ricoh G179 Specifications

General

Brand	Ricoh
Model	G179
Category	All in One Printer
Language	English

Summary

1. INSTALLATION

1.1 INSTALLATION REQUIREMENTS

Specifies environmental, power, and space requirements for machine installation.

1.2 MAIN MACHINE INSTALLATION

3. REPLACEMENT AND ADJUSTMENT

3.1 GENERAL CAUTIONS

Provides critical safety and handling cautions before replacement or adjustment.

3.4 LASER UNIT

Covers safety precautions and procedures for replacing the laser unit.

3.5 PCDU

Explains the replacement and re-installation procedures for the PCDU.

3.6 DEVELOPMENT

Details procedures for replacing the development filter, roller, and developer.

3.7 TRANSFER

Covers replacement procedures for the transfer belt unit and related components.

3.8 PAPER FEED

Provides steps for replacing paper feed unit components like rollers and motors.

3.9 FUSING

Details procedures for replacing fusing unit components like rollers and heaters.

3.10 PAPER EXIT

Explains replacement procedures for paper exit unit components and sensors.

3.11 DUPLEX

Covers replacement procedures for duplex unit components like motors and sensors.

3.12 BY-PASS

Details replacement procedures for by-pass paper size and end sensors.

3.13 DRIVE AREA

Covers replacement procedures for various drive motors and clutches.

3.14 ELECTRICAL COMPONENTS

Explains replacement procedures for electrical components like controller and power boards.

3.15 PRINT ADJUSTMENTS

4. TROUBLESHOOTING

4.1 SERVICE CALL CONDITIONS

Explains the different levels of service call conditions and their reset procedures.

4.2 SC TABLES: SC1XX

4.3 SC TABLES: SC2XX

4.4 SC TABLES: SC3XX

4.5 SC TABLES: SC4XX

4.6 SC TABLES: SC5XX -1

4.7 SC TABLES: SC5XX -2

4.8 SC TABLES: SC6XX

4.9 SC TABLES: SC7XX

4.10 SC TABLES: SC8XX -1

4.11 SC TABLES: SC8XX -2

4.12 SC TABLES: SC9XX

4.13 ELECTRICAL COMPONENT DEFECTS

Lists common electrical component defects, their CN, conditions, and symptoms.

4.14 BLOWN FUSE CONDITIONS

Details blown fuse conditions, ratings, and symptoms at power on.

5. SERVICE TABLES

5.27 UPDATING THE FIRMWARE

Provides detailed steps for updating the machine's firmware via SD card.

5.30 SELF-DIAGNOSTIC MODE

Describes the self-diagnostic mode at power-on and test flows.

5.31 USING DEBUG LOG

1000-SHEET FINISHER B408

2. TROUBLESHOOTING

Lists jam detection modes, staple status, and content for troubleshooting.

BOOKLET FINISHER SR3020/ FINISHER SR3030 B804/B805

PAPER FEED UNIT PB3040 D351

LCIT PB3050 D352

BRIDGE UNIT BU3030 D386

1. REPLACEMENT AND ADJUSTMENT

Covers replacement of control board, drive motor, tray exit, and relay sensors.