Cap Mechanism; Figure 2-16. Capping Operation; Wiping Mechanism - Epson Stylus 820 Service Manual
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Also See for Stylus 820:
- Service manual (146 pages) ,
- Printer basics manual (81 pages) ,
- Product information (11 pages)
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Stylus Color IIs / Stylus 820
Operating Principles
2.2.7 Cap Mechanism
The cap mechanism prevents printhead nozzles from drying and keeps bubbles from forming inside the
nozzles while the printer is not in use. The printer performs this operation automatically when print data is not
received. (However, since the power switch is in the primary circuit, it does not allow auto capping when the
user turns the printer off during printing.)
CR Hitting Flag
Cap
Hitting Flag
Air Valve
Air Tube
Waste Ink Drain Tank
Figure 2-16. Capping Operation
2.2.8 Wiping Mechanism
The wiping mechanism cleans the surface of the printhead nose when the printer is in the ink system
sequence. The wiper drive lever transmits to the pump drive gear via the cam friction roller. A tension spring
in the cam friction roller holds the suface of cam friction roller against the inside of the pump roller.
Lever
Wiper Blade
Internal Flag
Cam Friction Roller
Figure 2-17. Wiping Mechanism
Rev. A
2-15
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