TSC CPX4P Series, Service Manual

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Valve Unit
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Overview
Valve Unit blocks ink passages during wiping operation of Print Module, thus preventing dust from
entering Printhead Nozzles. Ink passages are unblocked during ink loading, printing, and cleaning
(excluding wiping operation).
[1] Cam Lever [3] Valve Sensor
[2] Valve Cam [4] Valve Motor

Open/Close Operation
Valve Unit is operated by Valve Motor (M106). Valve Motor rotates Valve Cam to open/close Wipe
Valve. The phase of Wipe Cam is detected by Valve Sensor (P107) and is controlled according to the
number of Valve Motor drive pulses. These operations are controlled by Printer Controller PCB.
[1] Cam Lever [3] Wipe Valve
[2] Valve Cam