Canon C2880 and C3380i

dram r d.c.b cheak ur machine

The problem is probably the drum unit.Try to take out the drum unit and look at the drum.Normaly the color of the drum should be all the same across the drum,but if there is brown lines around the drum thats mean it is tiem to change the drum unit.

I think that username is: admin, and pass: 0000 or 12345. If that doesnt helps you wrote on emma.servis@gmail.com for service manual.

Hi,
You need to check the laser shutter and transfer bias. Best solution would be to call service.

got to canon.usa.com and download the user manual. or go to google.com and type in User manula for the canon ir c2880 copier

pull out tray see if there is paper stuck in side were the tray slides

maybe <url=http://printmail.oregonstate.edu/ocp/pdf/NetworkScanGear.pdf>this</url> can help.

Sounds like you don't have the proper Vista x64 bit driver installed. It's different from both XP and standard Vista Drivers?
Get it here:
http://www.usa.canon.com/opd/controller?act=OPDSoftwareAct&fcategoryid=2269&modelid=14357

i dont know about any counter to reset,the message is displayed when there is waste toner in the sensor window of the waste toner bottle.That window can also be cleaned.

November 12, 2007 Product : imageRUNNER C2880 / C3380 / C2880i / C3380i Title : E020-0021 Error :
E020-0021will not reset after the machine is powered off and on. Replacing the Drum and the ATR Sensor did not clear the error.

Workaround :
In this case cleaning the Dust Proof Glass fixed the error.Check the Dust Proof Glass for soiling.The glass is located under each unit and may have toner spilled on it. Clean the glass with the tool provided on the front door. Instruction's are also included there.

Canon USA, Inc. Systems & Technical Support Division