Originally Posted by
NevadaTech
Hello,
First off, I'm a computer/network tech not a printer tech. So understand there will be huge gaps in my knowledge.
I have a Xerox 7225 that stopped working. It has a 'Xerographic problem, call assistance' message on the screen now.
The yellow toner was replace a month prior then the drum was replaced a couple weeks later. Then the printer stopped working. When I pulled out the drum there was a huge amount of yellow toner all through out the printer.
At that point I air cleaned out a lot of toner throughout the printer. I took off the right side panel and the back two panels and continued the air clean. The toner was everywhere. I pulled the toner cartridges and drums out and cleaned the excess toner there. Yes, my bad, I've since read in this forum that you shouldn't air clean you should vacuum.
After reassembly the error message remained. At that point I replaced the yellow drum and the yellow toner, no go, same error. The magenta toner was empty (through natural use) and I replaced that but oddly it never shows as being full but the replacement/install date is accurate/updated.
Xerox's website suggests reseating the drum (I did that), turning off/on (I did that), and replace the drum (I did that)
When I turn the printer on it seems as if the startup process is interrupted. As I recall there should be longer, noiser piece to the startup. Reading other posts here, I believe the motor(s) are not all being tested. That same (lost) article also included some instructions to boot into a diagnostic mode (with the printer on, hold zero for 5+ seconds, then press Start button, when you get to a login prompt type 6789) and attempt to test a motor. This was not exactly the same error but similar.
Some ideas
* developer drive? - how difficult is this to source and replace? can I get to it to see if there is a bunch of yellow toner jamming up the gears?
* I think there main error is kicking off early and never getting to the point to check the state of the magenta toner cartridge (yes/no?)
* is there a way in Diagnostic Mode to send a move/rotate/engage command to the developer motor?
* are there any optical sensors I need to clean since my super duper air clean?
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