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Long story of Troubleshooting and talking to Ricoh. Still no luck. Machine worked fine for months. No problem and customer calls us and tells us. We are out of BK toner. Technician replaces it and Immediately customer opens the finisher to show a jam history location. A Day later. the DV Unit is packed with Toner and internal coil broken. Ok. So we replace DV Unit and Set PM counter, turn off machine. Turn back on. Think nothing of it. 2 Weeks go by (low volume location) and they call for light CQ. BK toner claims to be nearly empty on screen, but bottle feels full, not seeing toner in side DV toner entrance. Changed the Bottle for giggles, it resets toner icon on screen. No CQ Fix. Force toner K 2x, no change.
We assumed ok, a bad Toner Bottle Chip Board and Subhopper (coil was messed up inside). Replaced Subhopper, said board (used), and toner chute (didn't fill Subhopper w/toner since it doesn't say to in Serv Manual). - No luck.
Got new Toner Bottle Detect Board and no change.
Had theory Subhopper needed toner before installing so replaced it again this time with toner added. Ran Procon Density Adjustment. Runs great 100Copies then starts fading again.
Replaced Main Drive Unit per Ricoh Support (History of issues with these?)
Swapped from Working Machine BICU and IOB boards. Following SM instructions for these.
Cleaned ID Sensors per Ricoh.
Swapped another Transfer Unit in just to test.
At a darn loss. I'm thinking the DV is crashed or a Voltage board or bad ID/Music Sensor? *shrug*
The K Toner icon on the screen can go from Full to Empty in less than 200 pages, but that bottle feels pretty full.
*Yes I checked the back cover of the DV Unit and Made sure it was there and copper plates contacting DV shaft. (We've had that issue before
You may have multiple problems now. The mechanical problem with the K toner and may have caused toner scattering resulting in toner getting on the laser shield glass for the K PCU. It may also have caused toner hazing to get into the scanner. Both can cause light black prints. If only copying is affected then it is the scanner.
You may have multiple problems now. The mechanical problem with the K toner and may have caused toner scattering resulting in toner getting on the laser shield glass for the K PCU. It may also have caused toner hazing to get into the scanner. Both can cause light black prints. If only copying is affected then it is the scanner.
Yeah it starts out Dark with a new DV Unit and fades over time. Used the wand on the laser glass and visually it looks clean and good. Wand comes back clean. IF it DIDN'T Start Dark I'd agree about the laser. We are ordering a new K DV and ID/Music Sensor board and gonna replace. and Re-calibrate. We've had DV crash before when running too low on toner.
There is also a black development solenoid on these models that could go out. Not sure of the specific symptoms but might be worth a look, since you have checked everything else.
There is also a black development solenoid on these models that could go out. Not sure of the specific symptoms but might be worth a look, since you have checked everything else.
Yeah I saw the information on that, but the symptoms and images in the Goose Guide shows partial and intermittent fading. May try it anyway.
Replaced the ID/TM *music* sensors and K DV and toner coil (part bottle interfaces with and it ran well till it ran out of toner. Of course the bottle is no where near empty. Guessing it's blowing the toner chips or telling the chip it's empty when it's not.
Wish I could find a way to reset these "empty" toner bottles. We have 3 Blacks nearly full that read empty.
Yeah I saw the information on that, but the symptoms and images in the Goose Guide shows partial and intermittent fading. May try it anyway.
Replaced the ID/TM *music* sensors and K DV and toner coil (part bottle interfaces with and it ran well till it ran out of toner. Of course the bottle is no where near empty. Guessing it's blowing the toner chips or telling the chip it's empty when it's not.
Wish I could find a way to reset these "empty" toner bottles. We have 3 Blacks nearly full that read empty.
Replace the chips on the bottles.. plenty available ebay, aliexpress
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