Ricoh MP C2004/C2504 Service Manual Part 19

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Troubleshooting

  1. Execute SP2-111-004 (Forced Line Position: Adj. Mode d).

  2. Execute SP2-194-007 (MUSIC Execution Result: Execution Result).

Countermeasure (3): Image transfer belt/ Image transfer unit defective

  1. Execute SP2-112-001 (TM/ID Sensor Check Execute).

  2. Check SP2-112-010 (TM/ID Sensor Test General:FCR).

--> Execute the following procedure

  1. Remove the Image Transfer Unit, and check for abnormalities such as contaminants or scars, and set it after cleaning.

  2. Execute SP2-111-004 (Forced Line Position: Adj. Mode d).

  3. Execute SP2-194-007 (MUSIC Execution Result: Execution Result).

  4. If it fails, replace the image transfer belt/ Image transfer unit.

Countermeasure (4): TM/ID sensor defective

Follow the next step if executing SP2-111-004 (Forced Line Position: Adj. Mode d) and SP2-194-007 (MUSIC Execution Result: Execution Result) fails.

  1. Clean the TM/ID Sensor.

  2. Check the harness and connector for TM/ID sensor.

  3. Replace the TM/ID sensor.

  4. Replace the BCU.

Countermeasure (5): Paper transfer contact/release mechanism defective

Check if the MUSIC/ProCon Pattern is attached on the Paper Transfer Roller. If it is attached, separating may be defective.

  1. Execute SP5-804-255 (OUTPUT Check: Paper Transfer Contact Operation) to operate the paper transfer contact and release motor to check the separating operation of the paper transfer roller.

  2. Check for a broken harness or connector disconnection.

  3. If the problem cannot be solved, replace the Imaging IOB.

Countermeasure (6): Laser optics positioning motor in laser unit error

  1. Check the operation of the laser optics positioning motor and check for a broken harness or connector disconnection. If an abnormality is detected, replace the Laser Unit.

  2. If the problem cannot be solved, replace the Imaging IOB.


      1. WHEN SC370 (TM (ID) SENSOR CALIBRATION ERROR) IS DISPLAYED

        Causes

        • TM (ID) sensor connector missing/connection error

        • TM (ID) sensor detection window dirt

        • TM (ID) sensor malfunction

        • Undulation in the ITB, or belt slippage


          Solutions

          Check if the SC occurs by turning the power OFF then ON. If the SC occurs again, do the following steps.

          1. Check if all connectors related to TM/ID sensor are connected securely. Reconnect the connectors if they are disconnected, or loose.

          2. If TM/ID sensor is contaminated, clean it with dump cloth (never use a dry cloth or alcohol).

          3. Check if there is an abnormality on the image transfer belt surface.

          4. If any abnormalities are found on the image transfer belt surface, replace the image transfer belt.

            • Belt scratched

            • Belt corrugation, belt skew

            • Cleaning failure

            • Background stains

            • Filming

          5. Check the TM/ID sensor for malfunctions, and recover or replace it if there are any defects.

          6. Check the harness. Replace the harness if it is disconnected, or damaged.

          7. If the SC is not cleared even after performing steps 1 to 6, replace the BCU


          Recovery Check Procedure

          1. Execute Vsg adjustment with SP3-320-001(Vsg Adj: Execute :P Sensor).

          2. Check the result with SP3-323-001(Vsg Adj OK?: Latest).

            • If code is "1": Recovered

            • If code is not "1": Not recovered

          Troubleshooting

          Adjustment after Recovery

          After performing recovery on SC370, execute the following adjustment procedures.

          1. Execute SP2-111-004 (Forced Line Position: Adj. Mode d).

          2. Execute the following SPs and check the results:

            • SP2-194-007 (Execution Result)

            • SP2-194-010 (Error Result: C)

            • SP2-194-011 (Error Result: M)

            • SP2-194-012 (Error Result: Y) Execute result sample Factory default: 0

              Success: 1

          3. Execute SP3-011-001 (Manual ProCon :Exe).

          4. Execute the following SPs and check the results.

            • SP3-012-001 to 010 (Front)

            • SP3-012-011 to 020 (Center)

            • SP3-012-021 to 030 (Rear)

              Execute result sample (In order of YMCK from left)

              • Factory default:[00,00,00,00]

              • Starting adjust:[99,99,99,99]

              • Fail Vsg adjust(Y):[21,99,99,99]

              • Error of Development gamma Max(C):[99,99,55,99]

              • Succeed:[11,11,11,11]

      2. WHEN SC501, SC502, SC503, OR SC504 (PAPER TRAY ERROR) IS DISPLAYED

        SC501, SC502, SC503, or SC504 occurs.


        Solutions

        1. Pull out the paper feed tray [A] on which the SC has occurred, and then, lifting the front part of the tray, pull it out all the way through (The photograph shows Tray 1.)

          image

        2. Check if there is any paper jammed in the machine, and remove it if there is.


          image

        3. If the sheets exceed the stackable limit, reduce the number of sheets.


          image

        4. Reattach the tray. Lift the tray slightly when you attach it.


      3. WHEN SC544-02, SC554-02 (NON-CONTACT THERMISTOR

        Troubleshooting

        HIGH TEMPERATURE DETECTION) IS DISPLAYED

        When SC544-02 or SC554-02 is displayed, the unit is probably damaged. Therefore replace a fusing unit or fusing sleeve belt unit in accordance with the following procedure.


        image

        To clear SC544-02 or SC554-02, replacing the fusing unit or installing an intact new unit detection fuse in the fusing unit must be required. The intact new unit detection fuse is provided in the fusing sleeve belt unit.

        When replacing the fusing sleeve belt unit, follow the procedure below.

        SP descriptions

        • SP5-810-002 [SC Reset: Hard High Temp. Detection] Clears the fusing hardware SC.

        • SP3-701-115 [Manual New Unit Set: #Fusing Unit] Sets the new unit detection flag ON/OFF.

        • SP3-701-116 [Manual New Unit Set: Fusing Belt] Sets the new unit detection flag ON/OFF.

          How to Clear SC544-02/SC554-02 with a New Unit Detection Fuse

          1. Install a new fusing sleeve belt unit. (page 4-134)

          2. There is a new unit detection fuse packed with the new fusing sleeve belt unit.


            image

          3. Connect the new unit detection fuse to the connector [A], and place the fuse in the empty space [B].

            image

          4. Reattach the fusing unit.

          5. Switch the power ON.

          6. Execute SP5-810-002 [SC Reset: Hard High Temp. Detection].

          7. Set SP3-701-116 [Manual New Unit Set: Fusing Belt] to “1”.

          8. Switch the power OFF and ON.

          Troubleshooting

      4. ISOLATION DIAGRAM OF SC663, 664, 665, 667, 668, AND 670-01

        The modules considered to be the cause of SC663, 664, 665, 667, 668 and 670-01 are as follows.


        image


      5. WHEN SC670 (ENGINE START UP ERROR) IS DISPLAYED


        Causes

        The engine board resets at an unexpected time, and does not start up again.


        Solutions

        Note: CTL = Controller

        SC670-01

        Engine start up error when the machine boots up

        If the symptom occurs, use the following chart to decide the best course of action.

        image

        SC670-02

        Engine start up error when the machine is in operation.

        Replace the part in order of precedence stated below (since there is a high possibility that those parts are broken and causing the error).

        1. Replace BCU

        2. Replace IPU

        3. Replace CTL

        4. Replace PSU

        SC670-03

        IPU start up error when the machine boots up.

        Replace the part in order of precedence stated below (since there is a high possibility that those parts are broken and causing the error).

        1. Replace IPU

        2. Replace CTL

        3. Replace PSU

        4. Replace BCU.

        SC670-04

        Communication error between the engine and controller.

        Replace the part in order of precedence stated below (since there is a high possibility that those parts are broken and causing the error).

        1. Replace IPU

        2. Replace BCU

        3. Replace CTL

          Troubleshooting

        4. Replace PSU


      6. WHEN SC672 (CONTROLLER START UP ERROR) IS DISPLAYED

        Symptom

        Note: CTL = Controller The following occur:



        SC672-00

        Communication error between operation panel and CTL after machine is powered on.


        SC672-10

        Communication error (receive) between operation panel and CTL after machine is powered on.


        SC672-11

        Communication error (send) between operation panel and CTL after machine is powered on.


        SC672-12

        Communication error between operation panel and CTL after normal start-up.


        SC672-13

        Communication error between operation panel and CTL after normal start-up; Operation panel not detected.


        • SC672 does not appear on the SMC report, as it is not logged.

        • The Smart Operation Panel communicates with the controller via a USB cable and IPU. SC672 is triggered when the panel cannot communicate with the controller.


Causes

Possible causes of SC672 include:

Target Part/SP No.:Paper Feed Motor / SP5-804-016 (Feed Motor:CW:Standard Speed)

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