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Likes: Faulty erase lamp? Speaking from experience with a similar issue on a different brand cause by bad erase lamp/LED
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Faulty erase lamp? Speaking from experience with a similar issue on a different brand cause by bad erase lamp/LED
Defects are simple, our mind is complicated
the name of this is negative backgraund, the problem is in most causes erese lamp/PCR or DEV unit. DEV is new? Then try to play with OPC.
Someone also say that issue can be printer driver.. I dont belive that this is your cause as backgraund is not so visibile.
Last edited by Drivee; 09-22-2021 at 08:12 AM.
Originally Posted by Blizzoo
MP C2003 does not have any type of erase lamp.
Did you try cleaning the LSU glass?
how is it not there? there is one in each slot of the pcdu, at the bottom right ... but in any case, maybe that is not the problem
Every laser/led printer have some device which will erese OPC. Is that lamp, PCR or corona wire does not matters.
assuming that:
complete pcdu is new
itb its new
fuser replaced
I think about:
- bad discharging lamp
- wrong values in pcdu installation
- problem in the contacts in the machine body (pcdu or itb)
- defective hvt board in black pcdu output patch
... and why not? ... defect in the pressurization mechanism of the pressure roller (on the machine)?
Last edited by luca72; 09-23-2021 at 04:01 PM.
If that were true, why are they not listed in the parts catalog or in replacements and adjustments section of the service manual. I checked before I commented.
There is a discharge lamp for each PCDU and that could be the problem. Try turning on the discharge lamp on service mode.
This is a long shot but, could it be that the PCU heater is not working?
MP C2003-32.pdf
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