Error code e100 on canon laser fax L100

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.

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

Laser scanner unit error.
Turn off the printer, and then turn it on again. If the same error occurs, turn off the printer, then contact the store you purchased the printer, or a service representative. When contacting the service representative, inform them of the error code displayed and symptoms.
Error Code: E100 0000

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

E100 code
Laser Shutter not opening
Possible mechanical failure or cracked/damaged Primary Fan Duct preventing the Laser Shutter from opening fully.

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).

Hey
How can I solve this error code(IR1600) on my canon copier by myself?

Canon IR 2000

System Error E100