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Ricoh fax180 - User Manual

Ricoh fax180
128 pages
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BRO/BR1
RICOH FAX180/170
SERVICE MANUAL
August 7th, 1995
Subject to change

Questions and Answers

  • M
    meyersgaryAug 17, 2025
    Why Ricoh fax180 Fax Machine is printing black copies?
    • J
      Justin MaynardAug 17, 2025
      Your Ricoh Fax Machine might be printing black copies due to several reasons. It could be that the harness connected to the FCU is out of position; in this case, check the connection between the FCU (CN6) and the contact image sensor. Another cause might be a defective contact image sensor, thermal head, or FCU, which would require replacing the respective component.
  • S
    Susan MeyerAug 19, 2025
    What to do if my Ricoh Fax Machine is printing blank copies?
    • L
      Laura CastroAug 19, 2025
      If your Ricoh Fax Machine is producing blank copies, the issue could stem from a few potential causes. The harness connected to the FCU might be out of position, so check the connection between the FCU (CN13) and the thermal head. Also, the thermal head or the platen roller might not be in the correct position, so verify their placement. If these checks don't resolve the problem, the thermal head or the FCU might be defective, requiring replacement.
  • J
    Jason BrownAug 22, 2025
    Why does my Ricoh fax180 produce faint copies?
    • D
      Daniel PettyAug 22, 2025
      Faint copies from your Ricoh Fax Machine can arise from several factors. The exposure glass might be dirty, requiring a cleaning. Alternatively, the scan threshold might be set incorrectly, so you should adjust the scan threshold settings using Function 10-2. A defect in the contact image sensor (LED, sensor element) or incorrect positioning of the thermal head or platen roller could also be responsible. In such cases, consider replacing the image sensor and checking the position of the thermal head and platen roller.
  • E
    Elizabeth BookerAug 25, 2025
    How to fix uneven image density on Ricoh Fax Machine?
    • D
      david07Aug 26, 2025
      Uneven image density on your Ricoh Fax Machine can be caused by a dirty exposure glass, which requires cleaning. Alternatively, the contact image sensor may be broken and need replacement. The thermal head or the platen roller might not be in the correct position, so you should check if they are correctly placed. A defective thermal head may also be the cause and should be replaced if necessary.
  • J
    Jeffrey SullivanAug 27, 2025
    Why Ricoh fax180 Fax Machine prints vertical black lines?
    • C
      Christopher DanielsAug 27, 2025
      Vertical black lines on copies from your Ricoh Fax Machine can be due to several reasons. The contact image sensor element(s) may be defective, requiring replacement of the contact image sensor. There might be dirt or dust on the exposure glass, so cleaning it is recommended. The thermal head could also be defective, necessitating its replacement. Lastly, the paper in the machine might be scratched, so check the paper path for any damage.
  • S
    stacyoconnellAug 30, 2025
    How to resolve dirty background issue on Ricoh fax180?
    • C
      cathy47Aug 30, 2025
      If your Ricoh Fax Machine produces copies with a dirty background, it may be due to a scanner shading correction error or a wrong threshold. To resolve this, clean the exposure glass of the image sensor. You can also adjust the scanner contrast threshold settings using Function 10-2.
  • D
    Donald CamachoSep 2, 2025
    How to fix black dots or spots on Ricoh fax180 Fax Machine copies?
    • M
      Megan FrazierSep 2, 2025
      If you're seeing black dots or spots on copies from your Ricoh Fax Machine, it could be due to dust on the exposure glass, so clean the exposure glass of the image sensor. It may also be caused by a scanner shading correction error or wrong threshold; in that case, adjust the scanner contrast threshold settings using Function 10-2. Finally, the FCU may be defective, and replacing it might solve the issue.
  • M
    Mrs. Jeanne DavisSep 5, 2025
    What causes horizontal black lines on Ricoh fax180?
    • P
      ppaulSep 5, 2025
      Horizontal black lines appearing on copies from your Ricoh Fax Machine can be attributed to a defective thermal head or a defective FCU. Consider replacing the thermal head or the FCU to resolve this issue.
  • C
    Christopher JonesSep 7, 2025
    How to eliminate white spots in black image areas on Ricoh fax180?
    • D
      Daniel AndrewsSep 7, 2025
      White spots appearing in black image areas on your Ricoh Fax Machine copies can be caused by dust on the exposure glass. Clean the exposure glass of the image sensor. It may also be due to a scanner shading correction error or wrong threshold. Adjust the scanner contrast threshold settings using Function 10-2. The FCU could also be defective, requiring replacement.
  • A
    amy17Sep 12, 2025
    Why does my Ricoh fax180 produce vertical white lines?
    • D
      Daniel LeblancSep 12, 2025
      Vertical white lines on copies from your Ricoh Fax Machine can indicate defective image sensor element(s), a defective thermal head, or a defective FCU. Replacing the image sensor, thermal head, or FCU, respectively, may resolve the issue.

Summary

1. OVERALL MACHINE INFORMATION

1.1. SPECIFICATIONS

Details the technical specifications of the machine, including document size, data rates, and power requirements.

1.2. FEATURES

Lists the available features of the RICOH FAX180/170, categorized by equipment and communication capabilities.

1.3. COMPONENT LAYOUT

Identifies and describes the major mechanical, drive, and electrical components of the machine.

1.4. OVERALL MACHINE CONTROL

Explains the machine's control system, including the FCU and its component blocks.

1.5. VIDEO DATA PATH

Describes the flow of video data during transmission, reception, and copying processes.

1.6. POWER DISTRIBUTION

Illustrates how power is distributed throughout the machine, detailing PSU and FCU outputs.

2. DETAILED SECTION DESCRIPTIONS

2.1. SCANNER

Provides detailed information on the scanner component, its mechanisms, and operations.

2.2. PRINTING

Details the printer component, including its mechanisms, paper feeding, and cutter operations.

2.3. PCBs

Lists and describes the main Printed Circuit Boards (PCBs) of the machine.

3. INSTALLATION

3.1. INSTALLING THE MACHINE

Provides general instructions for installing and setting up the machine.

3.2. INITIAL PROGRAMMING

Details the initial programming steps required after installation.

4. SERVICE TABLES AND PROCEDURES

4.1. SERVICE LEVEL FUNCTIONS

Outlines various diagnostic and adjustment functions available in service level.

4.2. BIT SWITCHES

Details the system, scanner, printer, communication, and G3 switches.

4.3. NCU PARAMETERS

Provides a comprehensive list of NCU parameters and their default settings.

4.4. DEDICATED TRANSMISSION PARAMETERS

Explains how to program and configure dedicated transmission parameters.

4.5. SERVICE RAM ADDRESSES

Lists service RAM addresses for system parameters, counters, and settings.

5. REPLACEMENT AND ADJUSTMENT

5.1. EXTERIOR

Covers the replacement of external parts of the machine.

5.2. SCANNER

Details the replacement procedure for the scanner's CIS unit.

5.3. PRINTER

Details the replacement procedures for printer components like the thermal head.

5.4. PCBs

Describes the replacement of the PSU, FCU, and NCU PCBs.

5.5. ROLLERS AND MOTORS

Details the replacement procedures for rollers and motors.

6. TROUBLESHOOTING

6.1. COPY QUALITY TROUBLESHOOTING

Provides troubleshooting steps for various copy quality issues.

6.2. MECHANICAL PROBLEMS

Addresses mechanical problems related to the ADF/Scanner and Printer.

6.3. ERROR CODES

Lists and explains error codes, their meanings, and suggested actions.

Ricoh fax180 Specifications

General IconGeneral
Printing MethodThermal transfer
Copier FunctionYes
TypePlain paper fax
Automatic Document Feeder Capacity10 sheets
Fax Featuresautomatic redial
DisplayLCD

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