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  1. #1
    Service Manager 100+ Posts Solotime's Avatar
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    MP2550 with SR790 Finishers

    We just received in 2 of these units and both are throwing SC792 codes. The finishers are hooked up and installed properly. Strange that both are doing this. Is there something on the setup that I am missing. Both are very good condition used machines with around 40K on them.
    Thanks


  2. #2
    Field Supervisor 1,000+ Posts rthonpm's Avatar
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    Re: MP2550 with SR790 Finishers

    I may be misremembering, but I think that the firmware for the finisher ROM had to be at a certain level for it to work with the newer generation machines.


  3. #3
    Field Supervisor 2,500+ Posts


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    Re: MP2550 with SR790 Finishers

    SC 792 Check accessory harness for possible short
    SC 792 Finisher Unit Error - Defective finisher harness
    SC 792 Finisher Unit Error - Defective finisher unit
    SC 792 Finisher unit error - Check/Replace Fuse 4 on PSU
    SC 792 Finisher Unit Error - Poor connection of finisher
    SC 792 Finisher Unit Error - remove bridge unit if no finisher installed
    SC 792 Finisher unit error: Check/Replace Fuse 4 on PSU
    SC 792 Finisher Unit Error: Defective finisher harness
    SC 792 Finisher Unit Error: Defective finisher unit
    SC 792 Finisher Unit Error: Poor connection of finisher



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  4. #4
    Field Supervisor 1,000+ Posts Llama God's Avatar
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    Re: MP2550 with SR790 Finishers

    Quote Originally Posted by rthonpm View Post
    I may be misremembering, but I think that the firmware for the finisher ROM had to be at a certain level for it to work with the newer generation machines.
    I think that I read this too, probably in a firmware download recently.


  5. #5
    Service Manager 250+ Posts Bantams's Avatar
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    Re: MP2550 with SR790 Finishers

    Quote Originally Posted by Llama God View Post
    I think that I read this too, probably in a firmware download recently.

    +1 Firmware needs updating


  6. #6
    Bowdog 100+ Posts Gary Bowen's Avatar
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    Re: MP2550 with SR790 Finishers

    Current version of firmware for the SR790 Finisher is v5.11. It is an EPROM so must be replaced on the Finisher Control PCB. The part number for the EPROM is B4085164.


  7. #7
    Service Manager 100+ Posts Solotime's Avatar
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    Re: MP2550 with SR790 Finishers

    I will check to see if I can order this chip...not being a Ricoh dealer and all. So if this new firmware Eeprom is replaced that will resolve the error without having to apply any updates to the copier?

    Thanks again


  8. #8
    Field Service Manager SteveF's Avatar
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    I seem to remember you need to check if it is a 790 a or b series...the a version wont work on the newer models


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