Question about Canon imageRUNNER 5570 Copier
Tuned off pont.control,same porblem.replaced laser unit,DC cont.Bd. and HVT. now the code comes right after copies are complete,with a long "wait"message on the display.could pot control sensor be the problem even thou I had turned it off. also getting intermittent background on some copies
Have you tried to replace the Primary Charge corona unit? How about the rear block for the primary? Try to blow it out.... I did see in the book to try to run DPC in service mode... I also remember on older Canons that some times the wire ties may cause a problem... Also, you say that you are getting background... Is the laser good? Come to think of it I had a IR-5000 do the same thing and it turned out to be the rear corona block for the primary & transfer corona units... Good Luck
Posted on Mar 02, 2009
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Posted on Jan 02, 2017
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Dec 05, 2014 | Canon imageRUNNER 3300 All-In-One Laser...
0001 The BD signal is not detected 10 times or more within 10 msec in 5 msec
after the generation of the laser drive signal.
0002 While the laser is ON, the BD signal cycle is outside a specific range 20
times or more continuously.
0003 While the laser is ON, the horizontal sync signal cycle is outside a specific
range 20 times or more.
Main cause The wiring is faulty (short circuit, open circuit). The BD PCB is faulty. The
laser scanner unit is faulty. The DC controller PCB is faulty.
1. BD PCB
Try replacing the BD PCB. Is the problem corrected?
2. Laser scanner unit, DC controller PCB
Try replacing the laser scanner unit. Is the problem corrected?
NO: Replace the DC controller PCB.
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