Question about OKI 9800hdn Laser Printer

OKI 9800 with "342" error code

I have an OKI C9800. After replacing the waste toner cartridge and cleaning the toner transfer belt. I reinstalled the belt mechanism, and the toner drum units. Upon restarting the printer, I keep getting a "342" error code that says that the cyan toner unit has not been installed correctly. I have scrutinized every detail and cannot detect anything wrong with the installation of the toner unit. It is identical to the other toner units, and all the electrical contacts appear to be made when installed. I can't detect any mechanical reason for this. However, when restarting the machine each time, the message screen shows a question mark for the toner level. I installed a new toner cartridge, but the same question mark appears in the cyan toner level indicator. And after a few moments, the printer starts to do its prep cycle and then you can hear a very slight "clunk" and the the "342" code appears. Any clues as to what might be happening?

1 Answer

Anonymous

Problem might be with toner recycle coil which runs around the back of the belt unit. as the cyan unit is the furthest down the line if any blockages occur it can back up and lift the drum unit up. check the square opening of the recycle unit on the cyan end. Make sure you change waste toner unit when prompted or you might break a gear (big job) Karl Oki engineer

Posted on Sep 16, 2007

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