Epson 3800 Service Manual - Page 57

EPSON Stylus Pro 3800/3800C/3850 Revision A 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. Solenoid Ink Cover Closed 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. Maintenance Cartridge Cover Sensor Maintenance Cartridge Cover Solenoid Unit Ink Cover Sensor Ink Cover Ink Cover Open Cover Closed Cover Open Figure 2-32. Operation of Maintenance Cartridge Cover Figure 2-31. Ink Holder Cover Open/Close Mechanism OPERATING PRINCIPLES Other Mechanisms 57