How to change Fuser in T644 - Lexmark T644 Laser Printer

SOURCE: Reset Lexmark T644

1. Turn off the printer. 2. Press and hold (check) and .(right arrow). 3. Turn on the printer. 4. Release the buttons when Performing Self Test displays. The message CONFIG MENU displays on the top line of the operator panel. 5. Select Reset Maintenance Count from the Configuration menu. 6. The message Reset Maint Cnt=Reset displays momentarily. Press (check) to reset. When the reset operation is complete, the menu returns to the Printer Setup Reset Maintenance Count Screen. Scroll down to the Exit Configuration Menu and Press Select to Return to Ready status.

SOURCE: I have a Lexmark t644 Jamming!

if you have replaced the fuser this sounds like a paper size reporting problem print the network settings page to see if it takes up the whole page. if it doesnt your printer is not reporting the paper size accurately (change the paper size board) located behind the logic board
check to see how many finger are sticking out on the paper tray letter generally has two the bottom 2. the third thing is there is a sensor inside the printer on the left side looking in the toner needs to be removed to see it, just bfore the transfer roller on the left there is a timming sensor make sure this is still in place standing straight up right next to the rear white gear

SOURCE: lexmark t644 is showing "920.06

920 error is cold lamp on fuser replace fuser will clear problem