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peculiarbinder
08-11-2014, 03:14 PM
Pls, can anyone give me solution to this problem.

laitang
08-12-2014, 01:03 PM
From the service manual:
Code
C-2813
Classification
Main body: Gamma correction abnormality
Cause
The proper value cannot be figured out within the specified time by the correction of the patch density correction /C. Or, the proper value of
the developing DC output is 0 or lower.
Measures to take when alert occurs
The main body stops immediately to turn OFF the power relay (RL1).
Estimated abnormal parts
• Printer control board (PRCB)
• Developing unit /C
• IDC sensor (IDCS)
• IDC shutter solenoid (SD3)
Correction
Note
• The message "Please call service" is displayed on the panel.
Solution
1. Check that the process unit is correctly installed without looseness, and reinstall/repair it if any abnormality.
2. Check the installation of developing unit and I/O, and repair/replace it if any abnormality.
3. Check the connector connection and the wiring between PRCB and IDCS, and repair it if any abnormality.
4. Check the I/O of SD3 and repair/replace it if any abnormality.
5. Check the sensor, and clean/repair it if any dirt or abnormality. (Wiring diagram: Main body (3/3): 5-P)
6. Replace IDCS.
7. Replacing the developing unit
8. Replace PRCB

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