Sharp JX9660 laser printer odd fault (dead, sort of)

Nov 27, 2007 1 Replies

I've just reassembled my JX9660 after tearing it down to clean all the rollers in an attempt to fix a recurrent paper jam. On powering it up, the lights flash briefly but the display stays blank, the transport motor starts and the polygon runs up; after a few seconds the polygon stops and just the fan remains on cycling 1 minute on and 5 minutes off (as if it's in power save mode). I have been able to run the diagnostics mode, check the switches, the high voltage section and run a test print although it still jams frequently but it still won't power up normally. I reset the NVRAM and then reset all the counters to the previous values in case there was a problem with corrupt NVRAM but it's still the same. The manual doesn't list this particular condition in the fault syptoms and I'm stumped. Any ideas or suggestions? Martin


martinwhybrowntlworldcom

Well I fixed the new fault; pulled the ICU card to check for damaged pins on the connector, no damage found; re-fitted the card and the printer now powers up. Weird, I'm certain that it was fully home before so perhaps unplugging it has reset it somehow (although there's no battery or memory back-up caps that I'm aware of). Now to fix the original fault of paper jamming. Martin

martinwhybrowntlworldcom

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