Question about Ricoh Aficio AP3800C Laser Printer

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Ricoh Aficio AP3800c Yellow Toner Problem: I have one of these machines complete with the scanner/copier top fitted. For the past three years the machine has given faultless service and only ever needed standard consumables replaced like toner cartridges, all developer units and photo conductors which is part of the costs of ownership. It has now decided to throw me a problem. it keeps reporting the yellow toner is empty when it clearly isn't, I have tried another replacement cartridge thinking the cartridge may be faulty but no change. I have dismantled the covers and vacuumed the toner supply tubes by disconnecting them there appeared to be a clot in the pipe toward the drum end where it fits onto a cogged motor/pump thingy. After doing this I am still getting the original yellow toner empty message and now thumping my head against the wall! Where is the toner pump located and how do I test it? ...or can anyone suggest any thing else as after vacuuming out the tubes I did not do a forced toner supply as I was unaware of this procedure. Please bear in mind the machine is operated from the scanner top panel and not the small control panel on the actual printer as this seems to be bypassed due to the scanner top being fitted. Any help would be greatly appreciated.

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Hello there, i have the same problem here, but in the black
toner, i did the same as you and look that we have a clogged
pump or bad pump, the pump is located exactly where the dev.
unit is, but to remove it we need to take the laser unit from
the top cover where the printed pages stack, i'm going to work
in my printer, i let you now if i'm able to unclogg the pump.
I,m a electronic techniccian for Arcade machines(Namco) is the
first time that i work with a laser printer, the pump price is
$171.00, i let you know. Thanks
Miguel

Posted on Sep 09, 2010

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Posted on Jan 02, 2017

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