Canon LBP-1210 Service Manual page 113

E. Other Functions
1. Cleaning page sequence
This printer has the cleaning page sequence to remove dirt on the pressure roller in the fixing
unit. It is implemented by a command sent from the interface controller.
Receiving a cleaning page command from the interface controller, the engine controller picks
up a cleaning sheet. Then the engine controller step-drives the main motor, controls the fixing
heater to maintain a temperature of 175 °C, and feeds the sheet 7.5 mm at a time. This opera-
tion melts toner on the pressure roller onto the sheet, consequently the roller is cleaned.
Note: When performing the cleaning page sequence, be sure to use paper with the width of
maximum of 216 mm and with the length of 279 mm or more as a cleaning sheet.
CHAPTER 2
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