EPSON Stylus Photo R800
Revision A
OPERATING PRINCIPLES
Printer Mechanism
30
Timer cleaning
Ink is consumed depending on the combination of the cumulative printing
timer, cumulative cleaning count and cleaning timer.
Flushing
Two different flushing operations are executed for the following reasons.
Periodic flushing
This is done to prevent ink viscosity in the Print Head nozzles from
increasing during continuous printing. A specific small amount of ink is
discharged into the Cap according to the Periodic flushing timer.
Periodic large-amount flushing
This is done to prevent ink viscosity in the Print Head nozzles from
increasing during continuous printing. A large amount of ink is
discharged into the Cap according to the Periodic large-amount
flushing timer.
2.2.7 Paper Cutter Mechanism
The Paper cutter mechanism consists of such main parts as the Cutter Motor,
left and right HP Sensors (2 pcs. in all), Relay Board, Paper Eject Roller and
Paper Holddown Flap in the Cutter unit.
Operation during printing
When the Cutter Blade starts cutting, the Paper Hold-down Flap rises.
The paper is held and simultaneously cut.
The HP Sensors installed on both ends of the Cutter operating area
detect the Cutter Blade position.
The HP Sensors detect whether the Cutter Blade operates properly,
and Cutter Position Error or Cutter Jam Error is displayed according to
the operating condition.
Figure 2-12. Paper Cutter Mechanism
Right HP Sensor
Left HP
Sensor
Cutter Blade
Relay Board
Cutter Motor
Paper Eject Roller
Paper Holddown Flap
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