All Reset Sequence - Epson Artisan 810 Service Manual

Epson Artisan 810/835/837/710/725/730/Epson Stylus Photo PX810FW/TX810FW/PX820FWD/TX820FWD/PX830FWD/PX710W/TX710W/PX720WD/TX720WD/PX730WD/TX730WD

8.2.1.2 All Reset Sequence

This sequence is executed at power-on under either of the following conditions:
After a power failure or a fatal error
Paper jam is occurring.
CDR Tray is not retracted.
The carriage is out of the home position.
This section describes the printer operations in the All Reset Sequence under the
following preconditions in Table 8-2 "Detailed operations in All Reset
Preconditions
Primary power is abnormally turned off under the following conditions:
The carriage is in the home position.
CDR Tray is retracted.
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.
No ink cartridge is in either ink low or ink end status.
Table 8-2. Detailed operations in All Reset Sequence
Operation
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.
Artisan 835/725/PX820FWD/TX820FWD/PX720WD/TX720WD
Sequence".
PF Drive
Printer Operation Status Shift
Status
80 HP 0
PG++
PG-
6
80 HP 0
PG++
PG-
6
80 HP 0
PG++
PG-
6
Table 8-2. Detailed operations in All Reset Sequence
Operation
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.
Decom-
2-7. To shift the Transmission Arm to the Ink
pression
System Drive Position, the carriage
Pump
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.
---
2-10.The carriage returns to the home
position.
Operation principles
Revision G
PF Drive
Printer Operation Status Shift
Status
80 HP 0
1
PG++
PG-
80 HP 0
PG++
PG-
80 HP 0
1
PG++
PG-
80 HP 0
1
PG++
PG-
80 HP 0
1
PG++
PG-
80 HP 0
1
PG++
PG-
80 HP 0
PG++
PG-
80 HP 0
PG++
PG-
80 HP 0
PG++
PG-
6
(Continued to the next page.)
Confidential
Decom-
pression
Pump
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