Control Of Print Process - Lexmark C720 Service Manual

5024-001

Control of Print Process

Control Block Diagram
No. Control Process
1 Sequence control
2 Temperature
control
3 Toner empty
sensing control
4 Operator panel
control
5 Error processing
control
6 Interface control
7 Laser control
Note: A micro CPU mounted on the main engine (MCTL P.W.B.)
controls the print processes.
Outline of Function
Controls the print sequence of the printer.
Controls the temperature of the fuser unit.
Controls the toner empty status for each
toner cartridge.
Controls the operator panel indication and the
operator signals.
Senses the errors occurring in the printer as
well as the stop procedures.
Controls the receipt and transmission of the
interface signals from the external controller.
Controls the laser scanning and laser power.
General Information
1-43