Ricoh A172 User Manual

2. MAJOR DIFFERENCES FROM THE BASE
COPIER’S SORTER (A511)
• The number of bins has been changed. (Requests from the field.)
Sorter for This Machine Sorter for Base Copier
15 bins
+ interruption bin
10 bins
+ interruption bin
+ print bin
•
The exterior color has been changed. (New corporate identity color)
Refer to the A109 Service Manual, A511 (CS210) section for details.
A172/A199 8-2 SM

Ricoh A172 Specifications

General

Brand	Ricoh
Model	A172
Category	All in One Printer
Language	English

Summary

Overall Machine Information

1. Machine Configuration

Details the various components and their configurations for the A172/A199 series.

2. Specifications

Outlines the technical specifications, including resolution, paper handling, and speeds.

3. Mechanical Component Layout

Provides a diagram and list of mechanical components within the main machine.

4. Drive Layout

Illustrates the layout of the drive mechanisms and their components.

5. Electrical Component Descriptions

Details the electrical components, including PCBs, motors, and sensors.

Detailed Descriptions

1. Major Differences from the DFC-ALPHA (A109)

Highlights key differences between the A172/A199 and the base copier (A109).

2. Process Control

Explains the internal processes that control image formation and quality.

3. Drum Unit

Covers the drum's function, charge, cleaning, and lubrication mechanisms.

4. Image Processing

Outlines the steps and components involved in image processing.

5. Development

Covers the development section, including sleeve cleaning procedures.

6. Toner Tank

Describes the toner tank's agitation and end detection mechanisms.

7. Transfer Belt Unit

Explains the transfer belt's bias control and lubrication systems.

8. Transfer Roller Unit

Covers the transfer belt/roller heater control and bias settings.

9. Fusing Unit

Details the fusing unit's roller cleaning mechanisms and temperature control.

10. Operation Panel

Describes the operation panel's LCD, touch panel, and control block diagram.

Installation

1. Installation Requirements

Specifies the environmental, level, space, and power conditions for installation.

2. Copier (A172/A199)

Covers accessory checks and installation procedures for the main copier unit.

3. Dual Job Feeder (A610)

Details the accessory check and installation procedure for the Dual Job Feeder.

4. Sorter (A322)

Covers accessory check and installation procedure for the Sorter unit.

5. Film Projector (A718)

Details accessory check and installation procedure for the Film Projector unit.

6. Controller Interface Type-C (A583-05)

Covers accessory check and installation procedure for the Controller Interface.

Service Tables

1. Service Program Mode

Explains how to access and operate the Service Program (SP) mode.

1.2 Service Program Mode Table

Provides a table of adjustable service program items and their functions.

1.2.2 [2] SP Test

Describes the Self-Diagnostic Test modes for checking system functions.

1.2.3 [3] SP Data Output

Explains how to output diagnostic data from various system components.

1.2.4 [4] SP Special Feature

Details special features and settings accessible via SP mode.

1.2.5 [5] Jam/SC Counter

Explains how to view and print jam and service call counters.

1.2.7 [7] Counter Clear

Provides instructions for clearing various counters within the service program.

3. Test Points/Dip Switches/LEDs

Identifies key test points, DIP switches, and LEDs on the main boards.

4. Preventive Maintenance Schedule

Outlines the recommended maintenance tasks and intervals for the machine.

Replacement and Adjustment

1. Color Balance Adjustment

Procedures for adjusting color balance and performing auto calibration.

2. Laser Unit

Safety warnings and procedures related to the laser unit.

3. Drum Unit

Procedures for replacing components of the drum unit.

4. Development Section

Procedures for collecting and installing developer materials.

5. Transfer Belt Cleaning Unit

Procedures for replacing the belt lubricant bar and solenoid.

6. Transfer Roller Unit

Covers the replacement of the roller lubricant bar.

7. Fusing Unit

Details the fusing unit's roller cleaning mechanisms and temperature control.

8. Others

Procedures for replacing other components like fan filters and operation panel boards.

9. A172/A199 Fiery XJ System Printer γ Adjustment Procedure

Guide for adjusting printer gamma settings with Fiery XJ controller.

Troubleshooting

1. Service Call Conditions

Explains the different levels of service call conditions and their definitions.

1.2 Scanning

Lists SC codes and possible causes related to scanner malfunctions.

1.3 Printing

Lists SC codes and possible causes related to printing subsystem issues.

1.4 Development

Lists SC codes and possible causes related to the development unit.

1.5 Around the Drum

Lists SC codes and possible causes related to the drum and associated components.

1.6 Transfer Belt / Roller

Lists SC codes and possible causes related to transfer belt and roller issues.

1.7 Paper Feed

Lists SC codes and possible causes related to paper feed mechanism errors.

1.8 Fusing

Lists SC codes and possible causes related to fusing unit temperature errors.

1.9 Communication

Lists SC codes and possible causes related to communication errors between boards.

2. Blown Fuse Conditions

Identifies fuses, their ratings, and symptoms of blown fuses.

3. Operation Panel Self-Diagnostic Modes

Explains the self-diagnostic tests available for the operation panel.

4. Problems Detected at Tests and Suspected Units

Summarizes common problems detected during tests and identifies suspected faulty units.

1. Specification

2. Major Differences from the Base Copier’s Sorter (A511)

FILM PROJECTOR UNIT A718

1. Specification

2. Major Differences from the Base Copier’s Controller Type A (A583)

3. Parts Catalog

SUBJECT: AUTO COLOR CALIBRATION (ACC) PROCEDURE

Glass-top Copy Mode Calibration

Procedure for calibrating color balance using the glass-top copier.

Fiery XJ System Printer Gamma Adjustment Procedure

Procedure for adjusting printer gamma settings with the Fiery XJ controller.

SUBJECT: PARTS CATALOG UPDATES

Update No. 1 -

Updates related to the Operation Panel and Optics Section parts.

Update No.2 -

Updates related to the Fusing Unit components.

Update No. - 3

Updates related to the Pressure Spring component.

SUBJECT: SERVICE MANUAL - INSERT

PAGES:

Lists the pages that require replacement with updated information.

SUBJECT: MAIN BOARD ROM REVISION J

PROBLEM 1: An operation counter error occurs when upgrading the Main Board ROM’s from revision D or older to revisions E, F, or G.

Addresses an operation counter error after ROM upgrades.

PROBLEM 2: A dirty background is produced on copies with the Main Board ROM revisions E, F, and G.

Details issues with dirty backgrounds on copies due to specific ROM revisions.

PROBLEM 3: A blurred image is produced while making a black and white copy in ACS mode with Main Board ROM revisions E, F, and G.

Describes blurred images in black/white ACS mode linked to specific ROM revisions.

PROBLEM 4: A blank margin in the main scan direction when making a copy in single color black mode using a special program in User Tool. This problem occurs after a print job is sent to the copier.

Addresses blank margins in single color mode caused by incorrect timing programs.

SUBJECT: BLANKING ON TRAILING EDGE

SUBJECT: JAGGED IMAGE IN PRINTER MODE

SUBJECT: CYAN TONER SCATTERING IN PRINTER MODE

SUBJECT: HIGH TONER DENSITY IN LOW HUMIDITY ENVIRONMENT

Reason for Alteration

Explains the reason for modifying the Vcnt correction settings for toner density.

SUBJECT: SC321 WHEN USING FIERY & MISFEEDS FROM BYPASS

FIELD COUNTERMEASURE:

Describes installing 'F' version software on the Main Board for SC321 errors.

PRODUCTION COUNTERMEASURE:

Notes that 'F' version software is installed during production.

ROM ORDERING PROCEDURE:

Details how to obtain the 'F' version software ROM Kit (A172ROMF).

DETAILS OF MODIFICATION

3. Operation Panel (A172/A199)

Adds a drawing for the Operation Panel Harness - IPU 1 to the parts catalog.

Subject: MAJOR DIFFERENCES vs THE SC106

Subject: AUTO COLOR CALIBRATION (ACC) PROCEDURE

Glass-top Copy Mode Calibration

Procedure for calibrating color balance using the glass-top copier.

Fiery XJ System Printer Gamma Adjustment Procedure

Procedure for adjusting printer gamma settings with Fiery XJ controller.

Standard Fiery Print Calibration Targets

Subject: HIGH TONER DENSITY IN LOW HUMIDITY ENVIRONMENT

Reason for Alteration

Explains the reason for modifying the Vcnt correction settings for toner density.

Subject: BLANKING AT THE TRAILING EDGE OF SOLID IMAGE

Subject: JAGGED IMAGE IN PRINTER MODE

Subject: SORTER ROLLER MARK

Subject: Cyan Toner Blasting in Printer Mode

Subject: SC321 WHEN USING FIERY

FIELD COUNTERMEASURE:

Describes installing 'F' version software on the Main Board for SC321 errors.

PRODUCTION COUNTERMEASURE:

Notes that 'F' version software is installed during production.

ROM ORDERING PROCEDURE:

Details how to obtain the 'F' version software ROM Kit (A172ROMF).

SUBJECT: OPERATION PANEL / OPTICS SECTION

Update No. 1 -

Updates related to the Operation Panel and Optics Section parts.

Update No.2 -

Updates related to the Transfer Roller Unit.

Update No. - 3

Updates related to the Pressure Spring component.

SUBJECT: IPU MODIFICATION

UNITS AFFECTED:

Lists affected units and serial numbers for IPU board ROM changes.

SUBJECT: CYAN TONER SCATTERING IN PRINTER MODE

SUBJECT: COLOR MIS-REGISTRATION

SUBJECT: LUBRICANT BAR & RELEASE SOLENOID

SUBJECT: PARTS CATALOG CORRECTION

CORRECTION 2:

Corrects part number for Entrance Seal Belt Cleaning Unit.

UPDATE 1:

Adds Toner Tank Unit part number to the Parts Catalog.

SUBJECT: IPU BOARD ROM

SUBJECT: PAPER JAMS IN FUSING UNIT

SUBJECT: COPY QUALITY LEAD TO TRAIL EDGE LINES

SUBJECT: OPERATION PANEL DISPLAYS METRIC SIZES

SUBJECT: OPC DRUM LINES

SUBJECT: A172/A199 SERVICE TIPS

The Service Tips are divided into the following sections:

Lists the categories of service tips provided for troubleshooting.

SUBJECT: LIGHT COPIES

PROCEDURE:

Provides a procedure to address light copy quality issues.

SUBJECT: PARTS CATALOG CORRECTION

CORRECTION 2:

Corrects the part number for the Entrance Seal Belt Cleaning Unit.

UPDATE 1:

Adds the Toner Tank Unit part number to the Parts Catalog.

SUBJECT: SERVICE MANUAL - INSERT

PAGES:

Lists the pages that require replacement with updated information.

2.3 Newly-Added Operating Features

SUBJECT: MAIN BOARD ROM REVISION J

PROBLEM 1: An operation counter error occurs when upgrading the Main Board ROM’s from revision D or older to revisions E, F, or G.

Addresses an operation counter error after ROM upgrades.

PROBLEM 2: A dirty background is produced on copies with the Main Board ROM revisions E, F, and G.

Details issues with dirty backgrounds on copies due to specific ROM revisions.

PROBLEM 3: A blurred image is produced while making a black and white copy in ACS mode with Main Board ROM revisions E, F, and G.

Describes blurred images in black/white ACS mode linked to specific ROM revisions.

PROBLEM 4: A blank margin in the main scan direction when making a copy in single color black mode using a special program in User Tool. This problem occurs after a print job is sent to the copier.

Addresses blank margins in single color mode caused by incorrect timing programs.

SUBJECT: PRESSURE ROLLER

SUBJECT: TRANSFER BELT

SUBJECT: PARTS CATALOG CORRECTIONS & UPDATES

CORRECTION 2:

Corrects the part number for the Entrance Seal Belt Cleaning Unit.

UPDATE 1:

Adds the Toner Tank Unit part number to the Parts Catalog.

SUBJECT: DIRTY BACKGROUND

SUBJECT: MAGENTA TONER SCATTERING

Preparation:

Steps to prepare the machine before adjusting magenta toner scattering.