Canon imageFORMULA DR-C125 Service Manual page 36

CHAPTER 2 FUNCTIONS & OPERATION
Function list of major ICs (control PCB)
IC No. Name
IC201 Scanner Controller
IC611 Analog preprocessor
IC114 EEPROM Memory
IC115 SD-RAM Memory
IC117 NOR Flash Memory
IC19 Motor driver
IC20 Motor driver
IC23 Ultrasonic Control
Microcontroller
2-14
Controls scanning system
Performs analog
conversion
Stores each setting
Saves image data temporarily, and serves as a work
memory for the Scanner Controller
Stores firmware
Drives the main motor
Drives the feed motor
Controls transmission and reception of ultrasonic waves
and double feed detection
Table 2-401
COPYRIGHT © CANON ELECTRONICS INC. 2011
Function
gain/offset adjustment,
CANON DR-C125 FIRST EDITION
and A/D