Results 1 to 10 of 10
  1. #1
    Senior Tech 100+ Posts
    Join Date
    May 2020
    Location
    Lagos
    Posts
    222
    Rep Power
    11

    Ricoh mpc4503 SC490-00 at start up

    Good Days,

    Hope this post finds everyone well. Having sc490-00 at machine start up. Changed all PCDU and all peripherals still no luck

  2. #2
    Technician
    Join Date
    Nov 2023
    Location
    Mexicali
    Posts
    22
    Rep Power
    1

    Re: Ricoh mpc4503 SC490-00 at start up

    That code is not listed in mpc4503 will not be sc491?

  3. #3
    Retired 10,000+ Posts
    Ricoh mpc4503 SC490-00 at start up

    slimslob's Avatar
    Join Date
    May 2013
    Location
    Bakersfield, CA
    Posts
    34,013
    Rep Power
    984

    Re: Ricoh mpc4503 SC490-00 at start up

    Are you sure it is a SC490 and not 491 or 492? I do not see SC490 listed in the service manual for the 03s. I do see it in Goose's Guide for older models as being either a fan problem or a MUSIC error.

  4. #4
    Senior Tech 100+ Posts
    Join Date
    May 2020
    Location
    Lagos
    Posts
    222
    Rep Power
    11

    Re: Ricoh mpc4503 SC490-00 at start up

    Quote Originally Posted by slimslob View Post
    Are you sure it is a SC490 and not 491 or 492? I do not see SC490 listed in the service manual for the 03s. I do see it in Goose's Guide for older models as being either a fan problem or a MUSIC error.
    I beg your pardon. It's for sc491-00. Thanks Slimslob for drawing my attention.

  5. #5
    Service Manager 5,000+ Posts
    Ricoh mpc4503 SC490-00 at start up

    copier tech's Avatar
    Join Date
    Jan 2014
    Location
    London
    Posts
    7,487
    Rep Power
    180

    Re: Ricoh mpc4503 SC490-00 at start up

    Quote Originally Posted by Pixtech Frameworks View Post
    I beg your pardon. It's for sc491-00. Thanks Slimslob for drawing my attention.

    • Code: SC491-00
    • Description:High voltage power source: charge/development: output error SC detection signal (charge/development) is L (abnormal) for 200 ms consecutively during high voltage (charge/development) output.
    • Causes:H/W error Output contact setting fault Controller connector set fault Ground fault of output high voltage path Surface/air clearance insufficient (arc discharge) Controller harness disconnection, short-circuit PCU setting fault Control board _IOB error (related signal error) HVP_CB error Load error Grounding fault of charging output, short-circuit with other outputs Surface/air clearance insufficient in charging output path (including distance from other outputs) Abnormal deterioration of drum, and over current due to pinholes Drum vs charge roller gap error (PCU error). Over current due to drum surface condensation Grounding fault of developing output, short-circuit with other outputs Surface/air clearance insufficient in developing output path (including distance from other outputs) Other
    • Remedy: Update firmware. Cycle the main power off/on Reset or replace the harness of high voltage power supply feed path Reset or replace the harness between IOB-HVP_CB Reset or replace the PCU Check the operation of the contact mechanism Replace the HVP_CB Replace the IOB
    Let us eat, drink, and be merry, because tomorrow we may die!

    For all your firmware & service manual needs please visit us at:

    www.copierfirmware.co.uk - www.printerfirmware.co.uk




  6. #6
    Senior Tech 100+ Posts
    Join Date
    May 2020
    Location
    Lagos
    Posts
    222
    Rep Power
    11

    Re: Ricoh mpc4503 SC490-00 at start up

    Quote Originally Posted by copier tech View Post
    • Code: SC491-00
    • Description:High voltage power source: charge/development: output error SC detection signal (charge/development) is L (abnormal) for 200 ms consecutively during high voltage (charge/development) output.
    • Causes:H/W error Output contact setting fault Controller connector set fault Ground fault of output high voltage path Surface/air clearance insufficient (arc discharge) Controller harness disconnection, short-circuit PCU setting fault Control board _IOB error (related signal error) HVP_CB error Load error Grounding fault of charging output, short-circuit with other outputs Surface/air clearance insufficient in charging output path (including distance from other outputs) Abnormal deterioration of drum, and over current due to pinholes Drum vs charge roller gap error (PCU error). Over current due to drum surface condensation Grounding fault of developing output, short-circuit with other outputs Surface/air clearance insufficient in developing output path (including distance from other outputs) Other
    • Remedy: Update firmware. Cycle the main power off/on Reset or replace the harness of high voltage power supply feed path Reset or replace the harness between IOB-HVP_CB Reset or replace the PCU Check the operation of the contact mechanism Replace the HVP_CB Replace the IOB
    Suspecting high voltage power supply board or blown out fuse, because the said machine was working perfectly before I was told by the customer that sudden sc491-00 showed up.

  7. #7
    Service Manager 5,000+ Posts
    Ricoh mpc4503 SC490-00 at start up

    copier tech's Avatar
    Join Date
    Jan 2014
    Location
    London
    Posts
    7,487
    Rep Power
    180

    Re: Ricoh mpc4503 SC490-00 at start up



    A firmware update usually resolves this issue.


    Let us eat, drink, and be merry, because tomorrow we may die!

    For all your firmware & service manual needs please visit us at:

    www.copierfirmware.co.uk - www.printerfirmware.co.uk




  8. #8
    Senior Tech 100+ Posts
    Join Date
    May 2020
    Location
    Lagos
    Posts
    222
    Rep Power
    11

    Re: Ricoh mpc4503 SC490-00 at start up

    Quote Originally Posted by copier tech View Post


    A firmware update usually resolves this issue.


    How do I update or know if firmware is outdated.

  9. #9
    Service Manager 5,000+ Posts
    Ricoh mpc4503 SC490-00 at start up

    copier tech's Avatar
    Join Date
    Jan 2014
    Location
    London
    Posts
    7,487
    Rep Power
    180

    Re: Ricoh mpc4503 SC490-00 at start up

    Quote Originally Posted by Pixtech Frameworks View Post
    How do I update or know if firmware is outdated.


    We can supply you with the latest firmware complete with instructions.

    Please contact us via either web site below.
    Let us eat, drink, and be merry, because tomorrow we may die!

    For all your firmware & service manual needs please visit us at:

    www.copierfirmware.co.uk - www.printerfirmware.co.uk




  10. #10
    Senior Tech 100+ Posts
    Join Date
    May 2020
    Location
    Lagos
    Posts
    222
    Rep Power
    11

    Re: Ricoh mpc4503 SC490-00 at start up

    I have found the solution guys, it happens to be High voltage board AZ320204 (3E079310A) was the curpit. I guess it was low voltage that damaged it, unlike 04/Ex series that complains when it detects a low voltage.
    Thanks for the various contributions and assistance.
    Attached is the picture or the board
    Attached Images Attached Images

Tags for this Thread

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Get the Android App
click or scan for the Copytechnet Mobile App

-= -= -= -= -=


IDrive Remote Backup

Lunarpages Internet Solutions

Advertise on Copytechnet

Your Link Here