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Likes: The gradient and halftone test patterns in service mode is the best resource to diagnose a CQ issue without removing covers or wasting time and money swapping boards/parts.
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The gradient and halftone test patterns in service mode is the best resource to diagnose a CQ issue without removing covers or wasting time and money swapping boards/parts.
We know a thing or two because we've seen a thing or two.
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Agree. There's section in every SM regarding 'image quality troubleshooting' in almost all cases running gradations and halftone patterns is part of troubleshooting. They're there for a reason!
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But when you’re using using compatible toner & refilling the dev units the manual doesn’t account for this.Originally Posted by tsbservice
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hey i got the same error...
However, it is a C364e. First the power supply was defective.
After we exchanged the power supply, it suddenly stopped printing the color yellow.
We renewed Dev + Drum Yellow genuine.
Then we renewed the HV, then the PWB Assy (FRB)...
And now I'm considering replacing the laser/PH.
What was the solution here? Did anyone else have the problem?
Thanks
Tobi
Yes - well - kind of - recently with a C3350i that printed full yellow pages sporadically - after replacing the HV there was no yellow at all but funny black dots patterns.
Finally we performed a data clear/initialisazion via SP and voila - image was back on track. Do a USB backup first.
What will happen if you block a part of laser window for yellow and print full bleed yellow page?
I think you skipped some troubleshooting steps and jumped on boards which isn't always good idea
A tree is known by its fruit, a man by his deeds. A good deed is never lost, he who sows courtesy, reaps friendship, and he who plants kindness gathers love.
Blessed are they who can laugh at themselves, for they shall never cease to be amused.
I don't reply to private messages from end users.
You are absolutely rightI think you skipped some troubleshooting steps and jumped on boards which isn't always good idea
Unfortunately, it had to be done quickly and there was still an old machine standing around to be cannibalized. So we just started... It was the laser unit. I can now print yellow or all colors again
I still don't understand why it's only yellow but okay... I have to take a closer look at how the laser works so that I understand it I think
Thanks for letting us know your findings.You are absolutely right
Unfortunately, it had to be done quickly and there was still an old machine standing around to be cannibalized. So we just started... It was the laser unit. I can now print yellow or all colors again
I still don't understand why it's only yellow but okay... I have to take a closer look at how the laser works so that I understand it I think
A tree is known by its fruit, a man by his deeds. A good deed is never lost, he who sows courtesy, reaps friendship, and he who plants kindness gathers love.
Blessed are they who can laugh at themselves, for they shall never cease to be amused.
I don't reply to private messages from end users.
One of our techs had a similar issue with a C364e. The only difference is that for him it was the cyan. It wasn't completely blank of cyan, but was so light that on a full 255 halftone, it looked like it outputting at maybe a 32 level, while all others were the full 255. Tried all the usual suspects for a single color issue, and ultimately it was replaced laser unit that brought cyan back to normal.You are absolutely right
Unfortunately, it had to be done quickly and there was still an old machine standing around to be cannibalized. So we just started... It was the laser unit. I can now print yellow or all colors again
I still don't understand why it's only yellow but okay... I have to take a closer look at how the laser works so that I understand it I think
A Ricoh Service Tech for 7 year. A Konica Minolta Service Tech for 7 years. Now, KM service manager for 3 years.
My Ricoh knowledge is slowly dwindling away at this point. Many things have been lost to time...
for me it was also a C364e!
can you explain how the error occurs? I disassembled the laser and saw nothing
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