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  1. #1
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    imagePRESS C1 error code E000020-0485

    HELLO

    I have problems with my machine "canon imagePRESS C1 error code E000020-0485"
    can you help me and tell me the steps to follow to resolve and if there are video because I am not a technician and I open one can not know that this model because I'm in Tunisia ...
    thank you very much

  2. #2
    Service Manager 10,000+ Posts
    imagePRESS C1 error code E000020-0485

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    Re: imagePRESS C1 error code E000020-0485

    Quote Originally Posted by ramcess01 View Post
    HELLO

    I have problems with my machine "canon imagePRESS C1 error code E000020-0485"
    can you help me and tell me the steps to follow to resolve and if there are video because I am not a technician and I open one can not know that this model because I'm in Tunisia ...
    thank you very much
    -----------------------------------------------------------------------
    This Printer is hard to explain & service if u have never worked on it before--
    u will need to access SERVICE MODE Level 1-and Level 2 for checks
    many things can go wrong in there without some experience on model

    This process of removal & inspection of units can not be fully explained here-----
    if no tech available----u should get a MANUAL to study product


    This code could easily reflect that u need a developer change for BLACK



    below is for REFERENCE PURPOSE ONLY----do not attempt if not trained/ have a tech read and perform

    E020-0485

    Check to see if the image patch sensor is reading the patches on the drum. In service mode <Level 2>DISPLAY>DENS>, check P-SENS-P and P-SENS-S for values. If the values are zero, replace the image patch sensor or check that the patch sensor shutter mechanism is working correctly.



    How to read the image patch sensor-

    The way to check the 3 LED sensors on the image patch sensor----
    Enter service mode Level 1, go to <DISPLAY>DENS> , go to second screen and it will display <PCH-LED-1>(front), <PCH-LED-2>(center), <PCH-LED-3>(rear). If any read zero, replace the image patch sensor (FM2-2494-000).


    E020 Error in ATR
    first two digits represent color in question
    xx=01:Y, xx=02:M, xx=03: C, xx=04:K

    E020 (ATR error) detail


    xx85 Patch image sampling (center) error 1
    E020-xx85 Difference between the patch measurement and the dark current measurement is 30 or less in patch detection

    DISPLAY>DENS>DENS-S-Y/M/C/K (patch image measurement value) - DISPLAY>DENS>D-CRNT-P (dark current measurement
    value) </= 30

    1. After cleaning the Patch Sensor,
    execute FUNCTION>MISC-P>PT-LPADJ.
    Select DISPLAY>DENS>PCH-LED2, and check the value of PCH-LED2 (1).

    2.
    After removing the Patch Sensor Shutter,
    execute FUNCTION>MISC-P>PT-LPADJ.
    Select DISPLAY>DENS>PCH-LED2, and check the value of PCH-LED2 (2).

    3.
    If (1) is more than 240 and (2) is between 80 and 240, replace the shutter and solenoid. Then,
    execute PT-LPADJ again. If the value is between 80 and 240, complete the remedy. If not, go to step 4.

    4.
    After replacing the Patch Sensor, execute PT-LPADJ. If the value is between 80 and 240, complete the
    remedy.
    **Knowledge is time consuming, exhausting and costly for a trained Tech.**

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