Pump Mechanism - Epson Stylus COLOR 900 Service Manual

EPSON Stylus COLOR 900/900N

2.2.5 Pump Mechanism

The pump mechanism includes the carriage lock and head cleaner
mechanisms, as well as the ink pump itself (pressure rollers).
2-5 shows how they are combined.
CR Lock
Figure 2-5. Pump, Carriage Lock, and Head Cleaner Mechanisms
Figure
ASF/pump
switching
mechanism
Pump transmission
gears
Head cleaner
As shown below, the pump mechanism includes two pressure rollers.
Only one of them pumps ink at a time, depending on which direction the
ASF/pump motor is turning.
Figure 2-6. Pump Mechanism
Chapter 2 Operating Principles
Connector
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