Canon LBP-800 Service Manual page 79

CHAPTER 2
2. Operations
a. CPU (IC201)
The CPU intstalled in this printer is an 8-bit single-chip microcomputer.
This CPU is a single-chip CPU with a built-in ROM and RAM and controls the following print-
er operations based on the control program stored in the ROM.
1) Printer sequence control
2) Video interface control
3) High-voltage power supply circuit control
4) Laser/scanner control
5) Sensor control
6) Control of loads such as motors, and solenoids
b. Reset IC (IC202)
IC202 monitors +3.3V and resets the CPU when the power is turned ON.
c. Fixing control circuit
See the section "B. Fixing control circuit" in this chapter.
d. High-voltage power supply circuit
See the section "C. High-voltage power supply circuit" in this chapter.
e. Low-voltage power supply circuit
See the section "D. Low-voltage power supply circuit" in this chapter.
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