Epson Stylus Pro 7600 Photographic Dye Ink, Service Manual

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EPSON Stylus Pro 7600/9600 Revision A
Operating Principles Print Mechanism Components 115
2.2.3 Cleaning Mechanism
The cleaning mechanism in this printer is compatible with the cleaning mechanism in
the Stylus Pro 5000/9000. The cleaning mechanism is located on the right side of the
printer. The waste ink from the cleaning mechanism is channeled to the waste ink pad
(Maintenance Tank) in the lower right side through the tube.
The cleaning mechanism components are installed above the sub-frame and some are
fixed on the main frame as shown below.
†
Pump assembly (head cleaner)
When the head is in the capped position (valve closed), the pump motor creates a
vacuum that sucks ink from the nozzles. This is used for removing ink from the
nozzles and nozzle plate, initial ink charge, as well as cleaning. The waste ink
flows through one small tube to the waste ink pads.
†
Head cleaner
The head cleaner has felt on one side and rubber on the other, and is used to wipe
or rub off ink and foreign materials from the nozzle surface.
†
Pump motor (stepping motor)
The pump motor runs normally (the pump wheel turns clockwise as viewed from the
pump wheel side) and reverses (the pump wheel turns counterclockwise) to execute the
following functions:
„
Clockwise rotation (CW):
pump assembly drive for cleaning and so on
(Suction, wiper setting)
„
Counter clockwise rotation (CCW):
Pump release, wiper reset, HD_SLIDE (head gap adjustment) cam drive. See
“Platen Gap Adjustment Unit” (p.106) .
Note : The values for Motor Frequency above, given only for information, are obtained by 2-2
phase drive conversion with a drive system consisting of the pump wheel with P.C.D of
φ
30.4 and motor gear with P.C.D of
φ
6.
Figure 2-14. Cleaning Mechanism Components
Figure 2-15. Cleaning Mechanism Components
Table 2-6. Pump Drive Modes
Suction Speed Name
(Drive Mode)
Pump Wheel
Revolving Speed
Pump Wheel
Revolving Speed
Motor Frequency
(2-2 phase conversion)
Low speed (IS5) 0.46 rev/sec 0.15 ml/sec 186 Hz
Standard (IS4) 1.6 rev/sec 0.6 ml/sec 648 Hz
High speed (IS3) 2.6 rev/sec 0.9 ml/sec 1053 Hz
Super-high speed (IS2) 4.2 rev/sec 1.1 ml/sec 1702 Hz
Super-high speed (IS1) 5 rev/sec 1.2 ml/sec 2026 Hz
Cleaning Mechanism
(Maintenance ASSY)
Maintenance Tank
CR Lock
Cap assembly
Head cleaner
Pump motor
Pump assembly
Flushing box