Epson Artisan 810/835/837/710/725/730/Epson Stylus Photo PX810FW/TX810FW/PX820FWD/TX820FWD/PX830FWD/PX710W/TX710W/PX720WD/TX720WD/PX730WD/TX730WD
Revision G
OPERATING PRINCIPLES Power-On Sequence 54
Confidential
2.2.1 Simple Reset Sequence
This sequence is executed at power-on under the following conditions:
After powered off normally without any paper jam or fatal error.
At power-on, the CDR Tray is retracted, and the carriage is in the home
position.
This section describes the printer operations in the Simple Reset Sequence under the
following preconditions in
Table 2-5 "Detailed Operations in Simple Reset Sequence".
Preconditions
Set to PG- and the EJ Frame is down.
No paper is on the paper path.
Scanner Open Error is not occurring.
Duplex Unit is not installed.
CR Stopper is removed.
Initial ink charge is completed.
Auto head cleaning: ON
No ink cartridge is in either ink low or ink end status.
Table 2-5. Detailed Operations in Simple Reset Sequence
Operation Printer Operation Status
PF Drive
Shift
Status
Decom-
pression
Pump
1. Check the Case Open Sensor/waste
ink over flow
1-1. Check the Case Open Sensor and
confirm the scanner is not open.
---
1-2. Readout the value of waste ink counter
to check if waste ink overflow is
occurring.
---
2. Seeking the home position
2-1. PF Motor rotates counterclockwise to
release the CR lock.
---
2-2. The carriage moves to the 0-digit side
slowly and checks it touches the Right
Frame. If the amount of carriage
movement falls within the specified
steps when the carriage touches the
Right Frame, the home position is fixed.
Afterward, the carriage position is
monitored according to the signals from
the CR Encoder.
---
2-3. To detect the origin position of the
Transmission Arm, the PF Motor rotates
clockwise to confirm the Transmission
Arm touches the frame.
---
2-4. The PF Motor rotates counterclockwise
by the specified steps to shift the
Transmission Arm to the CDR Tray
Drive Position.
---
2-5. The carriage returns to the home
position.
---
2-6. To confirm the CDR Tray is retracted
fully, the PF Motor rotates
counterclockwise to detect the tray is
retracted to the full.
---
2-7. To shift the Transmission Arm to the Ink
System Drive Position, the carriage
moves to the Right Frame.
---
2-8. To detect the origin position of the
Transmission Arm, the PF Motor rotates
clockwise to confirm the Transmission
Arm touches the frame.
---
2-9. The PF Motor rotates counterclockwise
by the specified steps to shift the
Transmission Arm to the Ink System
Drive Position.
---
(Continued to the next page.)
Table 2-5. Detailed Operations in Simple Reset Sequence
Operation Printer Operation Status
PF Drive
Shift
Status
Decom-
pression
Pump
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