Hello!
Problems started with C3736 (hi temp) error. After reset machine worked half a day and showed C3825 (low temp).
After that C3726 and C3736 showed after each job.
Anyway, trouble can be reset every time, warmup does complete, print job executed no matter of number of pages tens or hundreds, but after print job is finished - few second after (cool-down) temperature should lower to standby predetermined
value but it doesn't apparently - error is shown.
Machine has only 80k, fuser looks like new, I disassemble it and checked thermistors (1 central and 2 on edge) - everything clean and without paper pieces or any other foreign objects inside it.
Since I hadn't fuser failure at low counter like this I suspect at Fuser power supply board (FUPU) malfunction. This board is also present in C458.
Higher models 558e/658e and C558/C658 have IHPU board instead.
Did anyone had such symptoms that are board related (or something else other than fuser).
P.S. If I get always the same error I would suspect that is thermistor related, but they couldn't be all 3 at fault at once. I'm afraid that fuser replacement would not solve the problem.
It's a pity that I don't have any other machine in the field to test the fuser (or FUPU) on it.
Problems started with C3736 (hi temp) error. After reset machine worked half a day and showed C3825 (low temp).
After that C3726 and C3736 showed after each job.
Anyway, trouble can be reset every time, warmup does complete, print job executed no matter of number of pages tens or hundreds, but after print job is finished - few second after (cool-down) temperature should lower to standby predetermined
value but it doesn't apparently - error is shown.
Machine has only 80k, fuser looks like new, I disassemble it and checked thermistors (1 central and 2 on edge) - everything clean and without paper pieces or any other foreign objects inside it.
Since I hadn't fuser failure at low counter like this I suspect at Fuser power supply board (FUPU) malfunction. This board is also present in C458.
Higher models 558e/658e and C558/C658 have IHPU board instead.
Did anyone had such symptoms that are board related (or something else other than fuser).
P.S. If I get always the same error I would suspect that is thermistor related, but they couldn't be all 3 at fault at once. I'm afraid that fuser replacement would not solve the problem.
It's a pity that I don't have any other machine in the field to test the fuser (or FUPU) on it.
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