EPSON Stylus Photo R800
Revision A
OPERATING PRINCIPLES
Printer Mechanism
25
The fed paper is detected by the PE Sensor, and its leading edge is then
transferred to the front of the Front Paper Guide.
To eliminate the deflection of the paper, the paper is then returned toward the
ASF Assy. by the specified number of steps according to the paper feed mode.
The paper is transferred again to the specified paper locating position of the
Front Paper Guide.
Figure 2-8. Paper Loading Mechanism 2
2.2.4.2 PF Measurement Sequence
The mechanical load in the paper loading path is measured in the following
cases to perform control so that an adequate current value is set according
to the mechanical load.
When power is switched on
When the Ink Cartridge is replaced
When the removal or fitting of the cutter is recognized in the paper feed
sequence
When the mechanical load in the paper loading path reaches the specified
value, Fatal Error is displayed. (When the cutter is not fitted)
When the cutter is fitted, the mechanical load when the cutter is fitted is
measured and reflected on the control since the mechanical load of the
cutter must be taken into consideration to set the adequate current value.
Paper
Star Wheel Rollers
Print Head
Driven Roller
PF Roller
Paper eject roller (front)
Paper eject roller (rear)
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