Epson Stylus Pro 3800/3800C/3850/3880/3885/3890 Revision C
OPERATING PRINCIPLES Other Mechanisms 57
2.8 Other Mechanisms
INK COVER OPEN-CLOSE MECHANISM
To keep the ink cartridges from being removed during printing, opening/closing of the
ink cover is electrically regulated. Opening/closing of the cover is controlled by the
lock mechanism that takes advantage of an electromagnetic solenoid, and the cover can
only be opened by means of the operation panel. When the operation to open the cover
is performed, the solenoid is energized and the lock is released. The solenoid unit is
equipped with a switch sensor that detects opening/closing state of the cover.
Figure 2-31. Ink Holder Cover Open/Close Mechanism
MAINTENANCE CARTRIDGE COVER OPEN DETECTION
To keep the maintenance cartridge from being removed during printing, a switch
sensor detects opening/closing state of the cover that stores the maintenance cartridge.
Figure 2-32. Operation of Maintenance Cartridge Cover
Ink Cover
Ink Cover SensorSolenoid Unit
Solenoid
Ink Cover Closed
Ink Cover Open
Maintenance Cartridge Cover Sensor
Maintenance Cartridge Cover
Cover Closed Cover Open
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