Clean the Front and Rear IDC sensors,open and close the front door,run an image stabilization sequence.
Hi
I have a Konica Minolta C-550
I appear P. -21 code
After I changed the UNIT appeared to me
Code P. -5
What should I do
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SOURCE: inaccurate error message
After reading the suggestions here, I tried cleaning the contacts of the cartridge with a Q-tip cotton swab, SLIGHTLY dampened with rubbing alcohol. This seemed to pretty much stop the problem, though it did re-occur occasionally throughout the life of that cartridge. Once I replaced that cartridge, it has never happened again. I guess this shows that you can (rarely) get a cartridge with bad contacts. If this ever happens again, I would return the cartridge to the retailer and get a new one.
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