ELECTRICAL COMPONENTS 
J001/J003 6-38  SM 
 
6.8.3 DRV BOARD 
 
 
The DRV Board contains these important components and functions: 
•  Phase control for the print head drive 
•  Ink supply motor driver 
•  Maintenance stepper motor driver 
•  Sensor signal detection. 
 
 
Cartridge SN
Ink Supply Motor (C, K)
Ink Supply Motor (Y, M)
Maintenance Mechanism Cam SN
 
Maintenance STM
Ink Supply System
Cartridge System
DCM4
 
DCM3
 
STM 
COM Board
 
Maintenance System
Heat Sink
DC Motor Driver
DC Motor Driver
STM Driver
Print Head (Y, M) Driver
Print Head (C, K) Driver
Duplex
 
Unit
 
Cover Open SNSet SN
Control
Board
Thermistor
G707D941.WMF