Error Code: E100 0000

that is what you should be doing as it is a warranty repair problem, not contacting fixya because you have a direction of what to do

That error indicates there is a problem with the laser unit. I suggest you search for technical assistance

Error code E#100, ERR 100 or E100-0000 is a laser scanner unit error.


Solution 1:

• Turn off the printer, wait 10 minutes, and then turn it on again.

Solution 2:

• Flip open the top of the printer.
• Look for a small shutter that holds the laser: carefully force this open with your hands and force the laser out into the center of the tracking cradle.
• After you move the laser, unplug the printer for a few minutes.
• Plug the printer back in.

Solution 3:

• If the same error occurs, it's necessary to contact a service representative.

Fix your printer

Solution 1:

• Turn off the printer, wait 10 minutes, and then turn it on again.

Solution 2:

• Flip open the top of the printer.
• Look for a small shutter that holds the laser: carefully force this open with your hands and force the laser out into the center of the tracking cradle.
• After you move the laser, unplug the printer for a few minutes.
• Plug the printer back in.

Solution 3:
If the same error occurs, it's necessary to contact a service representative

+1-855-517-2433(Toll Free)

http://fix-your-printer.blogspot.in/2009/03/canon-lbp2900-error-code-e100-0000.html

Error code E#100, ERR 100 or E100-0000 is a laser scanner unit error.
Solution 1:
Turn off the printer, wait 10 minutes, and then turn it on again.
Solution 2:
Flip open the top of the printer.
Look for a small shutter that holds the laser: carefully force this open with your hands and force the laser out into the center of the tracking cradle.
After you move the laser, unplug the printer for a few minutes.
Plug the printer back in.
Solution 3:
If the same error occurs, it's necessary to contact a service representative.

for other more help visit https://cbrtechsolutions.net

aser 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

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

51.XY ERROR
alternates with To continue turn off then on
A printer error has occurred.
X Description:
2 laser
Y Description:
0 Black
1 Cyan
2 Yellow
3 Magenta

Your error then comes from the magenta laser.

The recommendations from the service manual are:

1. If the message persists, turn the printer off and then on.
2. Reseat DC controller connectors J1022, J1026, and J1027.
3. Reseat laser/scanner unit connectors J101A, J101B, J5001A, J5001B, and J5020.
4. Replace the laser/scanner unit as necessary.
5. Replace the DC controller PCB as necessary.

I’m happy to help further over the phone at https://www.6ya.com/expert/jeremy_69f3cc28d95bf514

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

The 51.xx error occurs when there is an error in connection with the laser, if you open the printer to clean the lens, surely you have forgotten to replace the cable connection purple laser. open it again and reconnect all cables OR: 51.X PRINTER ERROR A loss of beam-detect occurred. X description: 1 = Beam-detect error 2 = Laser error 1. Press GO. The page containing the error will automatically be reprinted. 2. Turn the printer off and then on. 3. Reseat cables to the laser/ scanner and engine controller. 4. Replace the laser/scanner. 5. Replace the DC controller.