I'm having problems with my machine because give me this error 000990-0000 says turn off and on again but nothing happen error apear again, can some body help me resolve this issue. Thanks a lot.
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E990 Error in the waste toner shutter
0000 When the output of the waste toner shutter opening and shutting detection
sensor doesn't become "H" when it WMUPR period after the sleep returns after
eight hours or more pass, the door opening and shutting is detected or main
power switch turns on.
- Check that the drum unit is properly installed
- Replace the waste toner shutter -
When the locking Handle for the Process Assembly is turned to the locked position it re-positions a rack that opens the Waste Toner Shutters. When the rack is in the correct position there is a cutout in the rack that unblocks PS12, if the sensor remains blocked an E990 0000 will be generated.
Remove the Hopper Drive Assembly and the Hopper Assembly. With those items removed you will see a white nylon gear plate with 2 locking screws. Loosen the locking screws and position the gear plate so that when the handle is in the locked position, the cutout in the rack unblocks PS 12.Comment
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