The error light on a Canon MF4770n is flashing for no reason and cannot get it off. No error code is displayed and the copier is working.

SOURCE: canon ir6000 error codes E000061-0001..

error E061 poblem

SOURCE: Error code 6A00, alarm light flashing, no copy, print or fax function working

I tried everything. I unplugged the machine and moved the printer cartridges to the far left and cleaned and pressed down the spring loaded sponge on the right, over and over again. I also moved the springloaded thing (w/white plastic) forward and backward. Another suggestion was to move the print cartridge holder back and forth sideways. None of these things helped. And there was nothing visibly out of place. I was stumped. Then I found a thread that suggested Windex!!! Even though the error seemed to correlate with a paper jam that had occurred, I was ready to try anything. I got paper towels and windex (I didn't have an eye dropper). I sprayed the paper and cleaned where the cartridges normally sit. Nothing. In desperation I sprayed each pad below the cartridge in the middle area and I sprayed the "sponge" thingy to the right. Really soaked it. Cycled the on/off about 3 times and IT WORKS! (Fingers are black but that's a minor issue compared to unhooking and transporting and waiting and paying for service...) When you cycle the Windex through it soaks up the sticky dried up ink and cleans things up. Don't use other cleaners--use Windex or water.
Bonni

Jay Otaigbe

• 149 Answers
• Posted on Jul 06, 2009

SOURCE: IR2270 copier displaied error code E000020-000

It's concerning the toner level in the dev unitor drum unit. Try entering service mode and selecting 'install' this will stir toner and try to feed toner through. Could be a dirty or faulty toner level sensor. Cuuld also be the drum life over - check drum life in the service mode. Check my other posts to see how to enter service mode

Karl Wright

• 1653 Answers
• Posted on Sep 24, 2009

SOURCE: My copier displays a flashing

The H4 error is related to the Fuser Unit not reaching the correct operating temperature in the correct time. You can try clearing this error with the following:

Make sure that the machine is switched on and the error is displayed. Enter the Service Mode by pressing the following keys # * Clr *

Enter 14 and press Start. Then power off the machine, wait 30 seconds and then power back on. The error should have cleared. If not then you will need to call in a service engineer.