Epson Stylus Pro 3850 - Page 45

Epson Stylus Pro 3800/3800C/3850/3880/3885/3890 Revision C
OPERATING PRINCIPLES Cleaning Mechanism 45
 Pump Unit
The ink is absorbed from the head nozzles. The sucked waste ink is conveyed to the
waste ink pad through the tube.
The CW rotation of the pump motor rotates the conveyance roller. The roller rotates
pressing the tube to convey the waste ink from the cap unit to the waste ink pad.
The CCW rotation of the pump motor moves the conveyance roller away from the
pressing position.
Figure 2-13. Pump Unit Mechanism
 Head Cleaner
The head cleaner wipes off ink, dirt or the like from the surface of the head nozzles.
The CW rotation of the pump motor moves the head cleaner to the wiping position.
Figure 2-14. Head Cleaner Mechanism
To Waste Ink Pad
Head Nozzle
Conveyance Roller
Combination
Gear,15.5, 9.5
Intermittent Gear, 21.5
Spur Gear, 26.5
Spur Gear,13
Head Cleaner
Combination
Gear, 16, 11.5
Pinion Gear
(Pump Motor)
Combination
Gear, 13.5, 10
Combination
Gear, 13.5, 10
Spur Gear, 21.5