EPSON Stylus Photo R800
Revision A
OPERATING PRINCIPLES
Printer Mechanism
23
2.2.3.4 CD-R Printing Mechanism
CD-R tray home position detection sequence
Lift the Stacker (PG Release Sensor: Close), insert the CD-R Tray into the
specified position, and press the Paper Switch. This starts the following
operation.
When the close signal of the PG Release Sensor is detected, no paper is
fed from the ASF if the Paper Switch is pressed. In this case, the Paper
Switch executes a CD-R Tray home position detection sequence.
1.
When the APG Assy. is driven, the PG position is set to "++" and
the Driven Roller of the Upper Paper Guide presses the CD-R
Tray.
2.
When the Carriage Unit moves leftward and the PW Sensor
detects the CD-R, the Carriage Unit returns to the carriage home
position (HP).
3.
After waiting for about 5 seconds at the carriage HP, the Carriage
Unit moves to the CD-R Tray HP detectable position (right end of
the CD-R Tray).
4.
The CD-R Tray is pulled in the ASF direction, the PW Sensor
detects the CD-R Tray HP, and then the Carriage Unit moves to
the center of the CD-R Tray.
5.
When the PW Sensor detects the white marking in the center of
the CD-R Tray, the CD-R Tray is fed in the paper ejection
direction.
6.
The Carriage Unit moves leftward, the PW Sensor detects the left
side white marking, then the Carriage Unit moves rightward, and
the PW Sensor detects the right side white marking.
7.
The Carriage Unit moves to the center of the CD-R Tray, and the
PW Sensor starts detection in the back-and-forth direction of the
CD-R. After the leading edge of the CD-R is detected, the CD-R
Tray is fed in the paper ejection direction, and the trailing edge of
the CD-R is detected. After that, the CD-R Tray is fed to the center
of the CD-R in the paper ejection direction.
8.
The Carriage Unit moves leftward, and the PW Sensor starts
detection in the horizontal direction of the CD-R. After the left end
of the CD-R is detected, the Carriage Unit moves rightward, and
the right end of the CD-R is detected.
9.
The Carriage Unit moves to the CD-R Tray HP detectable position
and stops there, and then the CD-R Tray is fed in the ASF
direction.
10. When the CD-R Tray stops operating, the Carriage Unit moves to
the carriage HP and stands by.
If the CD-R Tray HP, white marking or CD-R cannot be detected in any
specified step operation in the CD-R Tray HP detection sequence, the CD-R
Tray is ejected and Paper Out Error is displayed.
Figure 2-6. CD-R Printing Mechanism
Carriage Unit
PW Sensor
CD-R home position
CD-R Tray
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