Lexmark CX725
Remove the waste toner bottle.
Remove the motor cover. See Motor cover removal.
Remove the scanner rear left cover. See Scanner rear left cover removal.
Remove the sensor (paper size). See Sensor (paper size) removal.
Disconnect the waste toner bottle contact cable (A) from the controller board.
Route the cable out of the printer, and then remove the sensor.
Need a replacement waste toner bottle? Find out which part number to purchase.
Prevent excess toner powder from falling freely into the printer. Change the waste toner bottle when it is full.