Ink System - Epson STYLUS Scan 2000 Service Manual

EPSON Stylus Scan 2000

2.2.5 Ink System

Ink system mechanism consists of 1) cap mechanism, 2) pump mechanism, 3)
carriage lock mechanism, 4) waste ink absorber and 5) ink sequence. Out of
these mechanisms, 1) to 4) are physical mechanism and parts which are
mounted on the printer mechanism and 5) the ink sequence is performed
automatically by the firmware. The EPSON Stylus Scan 2000 has no engage/
disengage mechanism, meaning the pump and platen are always at work when
the PF motor operates. The figures below show printhead positions when the
ink system and various ink-pumping sequences are performed.
Eject roller
drive gear
Eject roller
PF (pump)
transmission
motor pinion
gear
gear
Figure 2-13. Ink System Mechanism
Operating Principles
PF roller drive
gear
Carriage lock
lever
Cleaner blade
Pump roller
Cap unit
Printer Mechanism Operation
Printable Area
2976 dots (360-dpi)
A
B
Figure 2-14. Major Ink Sequence Positions on Carriage
Revision A
C
D E
F
A. ASF Pick-up position
B. Flushing
C. Wiping/rubbing position
D. Flushing position
E. Ink Discharge position
F. Cap cleaning position
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