Epson Stylus Photo R3000 Series, Service Manual

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Confidential
Appendix Power-On Sequence 70
Epson Stylus Photo R3000 Revision A
4.1 Power-On Sequence
This section describes the power-on sequences for this product. The conditions are as follows.
 Conditions

Initial ink charge has finished.

The Front Tray Assy is set at the standard paper printing position without roll paper loaded.

No paper on the paper path.

Turned off normally without any error.

The Printhead is capped with the Cap of the Ink System Assy.

The PG position is PG 2.

The Carriage is normally fixed by the CR Lock.

The ink cartridges with sufficient ink are installed, and no ink low or ink end error is occurring.
The following explains how to use the simplified diagrams in Table 4-1 . The diagrams show
the movement of each component as seen from the front of the printer.
Figure 4-1. How to use the simplified diagrams
Table 4-1. Operation of the power-on sequence
Operation
Movement of each
component
Pump
Motor
*1
Decomp
Motor
*2
1. Checking waste ink overflow
1-1.Reads out the protection counter value to check waste ink overflow.
--- ---
2. APG initialization
2-1.The APG Motor rotates counterclockwise until the PG position is set to PG:5 to
initialize the APG mechanism.
--- ---
3. Seeking the home position
3-1.The carriage moves to the 0-digit side slowly and confirms it touches the Right
Frame.
--- ---
3-2.The carriage moves to the 130-digit side slowly and confirms it touches the CR lock.
--- ---
(Continue to the next page)
PG 2
PG 5
HP 0 130
Digit number of CR
Carriage
PF Roller
LD Roller
The rotation direction of the PF Motor
Clockwise:
Paper is fed normally
Counterclockwise:
Paper is fed backward
The above shows clockwise rotation.
The rotation direction of the ASF Motor.
CW: LD Roller rotates backward
CCW:LD Roller rotates normally
(Paper is fed)
The following shows clockwise rotation.
The condition of the CR lock
Red: CR lock is set
White:CR lock is released
The above shows the CR lock is set.
PG position
Shows “PG 2” position.
PG variation by APG Motor drive
PG becomes narrower (down-arrow):
Clockwise rotation
PG becomes wider (up-arrow):
Counterclockwise rotation
The following shows when PG is narrow.
PG 2
PG 5
HP 0 130
PG 2
PG 5
HP 0 130
HP 0 130
PG 2
PG 5
HP 0 130
PG 2
PG 5