Epson Stylus Photo PX650/TX650/TX659/PX660/PX660 Premium/Artisan 635 Revision C
OPERATING PRINCIPLES Power-On Sequence 39
Confidential
6-2.The PF Motor rotates clockwise while monitoring
the PG sensor.
Any
position
6-3.After the PG sensor switched from Off to On, the
PF Motor rotates clockwise by the specified step
until it detects the PG-- (APG home position).
6-4.After detecting the APG home position, the carriage
slightly moves to
the 80-digit side.
6-5.After the PF Motor rotates counterclockwise, it
rotates clockwise to confirm the PG sensor is set to
On-state.
PG--
6-6.The carriage slowly returns to its home position.
7. Setting the APG to PG++
7-1.The carriage slowly moves to the Right Frame and
stops there.
7-2.The PF Motor rotates clockwise and sets to PG++.
PG++
7-3.The carriage slowly returns to its home position.
8. PF initialization
8-1.Checks if paper exists by the PE sensor
*5
and the
PF Motor rotates clockwise for one second.
9. PF Motor measurement
9-1.The PF motor rotates clockwise for four seconds,
and performs a load measurement.
*6
10.Low temperature operation sequence
*7
10-1.The PF Motor rotates clockwise, and releases the
CR lock.
10-2.The carriage moves back and forth between CR
lock and the 80-digit side for two times.
Table 2-3. Operation of the power-on sequence
Operation
*1
Carriage/PF roller
movement and position
*2
PG
*3
11.Setting the APG to PG--
11-1.The carriage slowly moves to the Right Frame
and stops there.
PG++
11-2.The PF Motor rotates clockwise and sets to PG--.
PG--
11-3.The carriage slowly returns to its home position.
12.CR measurement and PW sensor initialization
12-1.The carriage slowly moves to the 80-digit side.
12-2.The carriage performs a load measurement while
moving to the VH Check position, and records the
detected voltage of the PW sensor at the specified
three positions, then stops.
12-3.The carriage detects the voltage of the PW sensor
at the carriage stop position (the black area at the
Paper Guide Front).
12-4.The carriage performs a load measurement while
moving to the 0-digit side, and stops.
12-5.The carriage performs a load measurement while
moving to the VH Check position, and records the
detected voltage of the PW sensor at the specified
three positions, then stops.
12-6.The carriage detects the voltage of the PW sensor
at the carriage stop position (the black area at the
Paper Guide Front).
12-7.The carriage performs a load measurement while
moving to the 0-digit side, and stops.
13.Detecting ink cartridge and initializing ink system
*8
13-1.The PF Motor rotates clockwise for one second,
and resets the PF Roller.
*9
(Continue to the next page)
Table 2-3. Operation of the power-on sequence
Operation
*1
Carriage/PF roller
movement and position
*2
PG
*3
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