Intermec ColorCoder V4 Service Manual page 55

2.3 Ink Supply System, cont'd.
2.3:B Pump Unit, cont'd.
Intermec ColorCoder V4 – Service Manual Ed. 1
Outline of Operation, cont'd.
Circulation mode
1. The pump motor is driven in the clockwise direction by engag-
ing the cam pressure release clutch, to place the pressure/release
cam in the pressure position.
2. The pump motor is driven in the counterclockwise direction by
engaging the pressure clutch and the suction clutch.
Suction clutch
CW
Pressure clutch
CW
Recovery pump
Recovery pump home
position sensor
Chapter 2
Pressure pump
Suction pump
CW
CW
CCW
Pump retainers
Pressure release cam
Pump motor
Figure 2-38
Operation and Timing
Cam
pressure
release
clutch
Pressure cam home
position sensor
54