Lexmark MS821

Main drive
1
2
3
4 5
6
1 Developer auger
2 Toner add roller
3 Developer roller
4 Photoconductor drum
5 Waste toner augers
6 Motor (main)
Inside the imaging unit, the developer roller applies the toner to the photoconductor drum surface. The
developer auger and toner add roller ensure that the proper amount of toner is supplied. Inside the waste toner
chamber, waste toner augers collect the waste toner. These augers also maximize the waste toner container
capacity. The augers, rollers, and photoconductor drum are driven by the motor (main).
4064
Theory of operation
868