Sir replace the drum and developer and conducted proper tests and requirements
Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/normanj_7893313f0751935f
SOURCE: error c2557 konica minolta 250/NEC IT2530
Reset it, start it with the right door open, go to service mode, clear the counters for drum and developer and go to functions menu. Close the right door and start immediately the F8 function. It should work.
SOURCE: machine trouble call service c0500
Try to power it up with the STOP button pressed.
If not call service team.
SOURCE: konica minolta bizub 164 call service c3451 tell how solve
Warming-up failure
1 Check the fusing unit for correct installation. 2 Check the open/close operation of the right door. 3 Check the fusing unit, DCPU and PRCB for proper connection and correct or change as necessary. 4 Change fusing unit. 5 Change PRCB. 6 Change DCPU.
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