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I believe it is, I haven't removed the gear from the machine yet, so I can only see the end of it yet.

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I have a c454 that had issues with the black developer unit, as a result the drive gear for the developer unit is partially stripped. Does anyone know what the part number is for the gear? Cannot...

I am not 100% sure. It actually disappeared for maybe 20k copies before returning.

Thanks for everyone's replies. After looking at it closer I am convinced this is an issue of the wiper blade not cleaning the transfer belt properly. I removed the transfer belt unit, you can clearly...

Sorry, my mistake. All the drums have been changed, and the black developing unit.

Yes

print or copy? Both

did you clean the machine ? You mean vac out any spilled toner? Or is their a cleaning cycle I am not familiar with?

what about the developer units? Only black has been...

I have a c454 that is printing streaks, whenever it has been sitting for an hour or so. After printing about 25 pages it goes away. See attached example, it is most visible in the lower right hand...

I solved my problem by buying a programmer. If you go thru very many this may be your best bet...otherwise buy chips off of eBay, or send it to someone to be reprogrammed.

I bought some imaging reset chips from eBay...I think the seller made a mistake programming them because after installing them the machine say...install the correct imaging unit.

I am on a time...

I have a CF3102 that the cyan is not printing evenly. See photo
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If I pour some toner in from the hopper it will print fine for a little bit. (obviously it is not putting enough toner into the...

Can anyone tell me how to do a toner refresh on a 3102? I looked in the manual and was not able to find anything.

I have a cf3102 printer that prints cyan as the example shows. I'm fairly sure that it isn't the drum since it still looks good. My theory is maybe the toner and developer clogged up due to humidity?...

maybe you already found your answer, but for future reference:
Control Panel > Printer's & Faxes > right click on printer > properties>printing preferences> any settings made here are global.

Yes actually I have

Ok I got a new toner supply pump and installed...I still have the same problem. I made sure that toner supply tube is not blocked. If I remove supply tube just below the toner hopper I get toner...

Is there any way of telling for sure if it is actually the toner supply pump? Replacing all 4 is going to run almost $1000...

I have a Ricoh cl7000 that printed faded black copies for a while then give the toner empty message. Toner is still over half full.
I removed and blew out the black toner supply tube. Makes no...

Is there any adjustment I can make to keep ink from pealing when printing on 24lb. semi gloss paper? I have already tried adjusting fusing temp which helps, but does not solve the problem. It does...