Engine Controller; Outline - Canon 3370 Series Service Manual

IC1060
IC3004
IC1088

2.7.2 Engine Controller

2.7.2.1 Outline

LBP3370
The engine controller circuit controls the operational sequences of the printer. It consists of the memory tag circuit, the fixing control circuit, the high-voltage power
supply circuit, the low-voltage power supply circuit, and the fan motor drive circuit,
The block diagram of this circuit is illustrated below and each circuit is described in the following.
IC1 SDRAM
IC2
IC3
IC4
IC9 EEPROM
IC16 Flash ROM
IC1009 ASIC
IC1010 CPU
IC1088 EEPROM
IC3004 Reset IC
IC1060
IC16
IC1100
IC1009
Retains image data.
EEPROM for storage of various parameters
ROM for storage of programs
system control
system control
EEPROM for MAC address
system reset
J3
IC1010
J1
F-2-27
Chapter 2
J6
J10
IC1
IC2
IC3
IC4
IC9
J7
J4
0018-3148
2-21