Canon LASER SHOT LBP-1210, Service Manual

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C. Power ON Sequence
The sequence from power-ON until the printer enters the STANDBY mode is shown below.
1) Power-ON
2) CPU initialization
3) Video interface communication start
4) Residual paper check
Checks each sensor for the detection of paper presence
5) Main motor initial rotation
6) Fixing heater initial drive
Drives for 0.5 seconds. However, if the fixing temperature is higher than 100 °C, stops the
drive.
7) Scanner motor initial rotation
8) High-voltage control
Detects the cartridge presence and cleans the transfer charging roller after the primary
charging AC bias is turned ON.
9) Failure/abnormality check
Detects scanner failures, fixing unit failures, and door open during the above periods.
CHAPTER 2
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