Xerox Phaser 3117 Service Manual page 22

3.2.2 Main Board
Main Board are composed of Engine and Controller on the one-Board.
Main Board control to send Current Imagedml Video Data to LSU to print and have motor Driving and Circuit for the
current driving and also include Paper Exit Sensor, Cover Open s/w, panel s/w.
U5
(IC-DRAM/
512K x 16Bit)
U7
(IC-POSI, ADSUST REG)
U10
(IC-CMOS LOGIC, INVER TER)
U12
(IC-MOTOR DRIVER)
x
System Overview
U1
(IC-VOLTAGE COMP)
U3
(IC-CLOCK GENERATOR)
12.0MHz
U8
(IC-EEPROM/256x12Bit)
U9
(IC-POSI, FLXED REG)
Service Manual
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