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Posted

You need to pay attention to the GPA23 circuit board.
Perhaps the board is faulty, or you have poor contacts with all incoming cables.

Try to reconnect them.

Posted (edited)

GPA23 is inside image box. No problems there. This board works well.

E-2877 means abnormal LDD23 board L+5V power supply is detected. Check power suppliers on LDD23 boad input and check fuses on LDD23 board. If all well, but still have E-2877 then need change LDD23 board.

If on printer is older R laser head then can use LDD23 with any revision. If on printer is new type R laser head then board should have the latest revisions ( 857C1059597G , or 857C1059597GH ) .

Edited by Minilab service
  • 1 month later...

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