921 service fuser error - Lexmark Optra T612 Laser Printer

Service Fuser Error appears when the fuser does not warm to the required temperature. For this error on this Lexmark model, the manual states you should power off the printer and power it back on, and if it is not plugged into a wall power point, change it to a power point mounted directly on the wall. Personally, I never got a Lexmark printer to work doing this, but this is in the manual. If this won't help, and the printer is under warranty, you should log it in with the servicing company.

If the printer is out of warranty, your next option is to change the fuser which costs around $300, so I think you would be better off getting a new printer unless you find a second hand one on Ebay.

921 Fuser Error and 922 Fuser Error messages indicate that the fuser unit failed to reach the standby temperature.

• If this is the first time you have seen the error, turn the printer off and on. Leave the printer off for at least 10 seconds before turning it back on. This gives the printer's engine board a chance to reset.
• If this is an intermittent error, you may want to check how the printer is plugged in, even if it has worked on this surge device for months. Make sure the printer is plugged straight to the wall and not through a surge device or power strip. Power strips and uninterrupted power supplies can cause a low amperage problem in your printer which can trigger a false fuser error.
• If this does not help or if this error appears every time the printer is powered on, you will probably need service on the machine.

921 Fuser Error indicates that the fuser unit failed to reach the standby temperature. Leave the printer off for at least 10-15 seconds before turning it back on. This gives the printer's engine board a chance to reset. Make sure printer is plugged in straight to the wall, bypass any surge device or power strips as this can cause a low amperage problem in your printer which can trigger a false fuser error. If this does not help, you'll probably need service on the machine since it deals with the LVPS, the fuser and the system board.

NO THE LAMP IS BAD

Service Fuser Error appears when the fuser does not warm to the required temperature. For this error on this Lexmark model, the manual states you should power off the printer and power it back on, and if it is not plugged into a wall power point, change it to a power point mounted directly on the wall. Personally, I never got a Lexmark printer to work doing this, but this is in the manual. If this won't help, and the printer is under warranty, you should log it in with the servicing company.

You can find the fuser at the back of the printer, remove the cover and there it is. It holds in two screws and a power connection. If the printer is out of warranty, your next option is to change the fuser which costs around $200, so I think you would be better off getting a new printer unless you find a second hand one on Ebay.

920, 921, or 922 Fuser Error:
The printer thinks the fuser unit is not heating up to the correct operating temperature. This can be due to a bad fuser lamp or possibly no power getting to the fuser unit. As a customer, the only other thing you can do is to check the connections on both the fuser unit and where it goes into the printer. Make sure neither connection is damaged. If you are a technician working on the printer, you can check the voltage coming off the system board and Low Voltage Power Supply (LVPS) to make sure power is getting to the fuser unit.

Don

Here's some info:

921 Fuser Error and 922 Fuser Error messages indicate that the fuser unit failed to reach the standby temperature.

• If this is the first time you have seen the error, turn the printer off and on. Leave the printer off for at least 10 seconds before turning it back on. This gives the printer's engine board a chance to reset.
• If this is an intermittent error, you may want to check how the printer is plugged in, even if it has worked on this surge device for months. Make sure the printer is plugged straight to the wall and not through a surge device or power strip. Power strips and uninterrupted power supplies can cause a low amperage problem in your printer which can trigger a false fuser error.
• If this does not help or if this error appears every time the printer is powered on, you will probably need service on the machine.

Looks like a hardware failure. Googling "lexmark optra m410 fuser" it appears you can buy a new one for around $100, but I don't know how difficult it is to install. A call to Lexmark tech support couldn't hurt.

This indicates that the fuser isn't heating up enough and is too cold. Either the thermistor, bulb, or power supply is on the fritz. I would replace the fuser if I were you.

921 Fuser Error Indicates that the fuser is below standby temperature when the printer is idle.
Error codes 920, 921, and 922 may display for a cold fuser failure. A 920 error caused by low line voltage can sometimes be cleared by turning the machine off and then on again.
Service Tip: Set the Fuser Temperature to NORMAL before starting this service check.
Manually spin the fan and check that
it rotates freely. Check the cable
connection to the engine board, J13
for correct installation.