Faulty canon ir1022a

Please see this explanation. It's for a Image Runner 1022A which should use the same error codes.

Thread E100 error code in Canon IR1022A

Please unplug the unit before trying to fix anything in the laser unit, it may damage your eyesight.

This error means: there is a problem with the laser unit. Dirty or faulty

Problem with Canon IR1024 Now the screen is reading System Error E100 PLEASE HELP!!

Main cause The laser driver/BD PCB is faulty (laser activation failure, BD
detection fault). The DC controller PCB is faulty. The image
processor PCB is faultly.

or drum is faulty.

E100 0000 BD detection PCB failureThe BD detection PCB is faulty. - Check the connector of the BD detection PCB.- Replace the laser scanner unit.- Replace the DC controller PCB.

Hi
E100 is laser related error.

You can try to reconect the conectors on dc controler board, and on laser unit, clean the laser, check if the laser shuter is broken.
If notthing helps the next step would be to chnage the laser unit and/or dc pcb

smudges of ink on copies

The most common cause for E100 is the drum unit. At the rear of the drum unit should be a small peg pointing into the machine. This gets broken off. It's purpose is to opperate a laser cut off shield when the drum is removed so to prevent laser exposure. If peg is missing laser will not be detected by the system and give E100. Can be repaired or will require a new drum if it has done more than 40 to 60K copies.

ERROR E100 is results when DRUM UNIT is not sitted properly , please check it is engaged with toner ( developing assy).