Confidential
Power-On Sequence
18
EPSON WF-R8590/WF-R8591/WF-R8593
Revision F
3-4.The CR Motor rotates clockwise and it confirms the CR Unit touches
the Left Frame.*
2
CW
---
---
3-5.The CR Motor and PF Motor stop.
---
---
---
3-6.The CR Motor rotates clockwise, and the CR Unit moves to the home
position, then the CR lock is set.
CW
CCW
---
3-7.The PF Motor rotates clockwise and releases the CR lock.
---
CW
---
4. CR measurement
4-1.The CR Motor rotates counterclockwise, and the CR Unit moves to the
0-digit side.*
3
CCW
---
---
4-2.The CR Motor rotates clockwise, and the CR Unit moves to the 130-
digit side. (Measurement drive)
CW
---
---
5. Adjustment of CR acceleration delay
5-1.The CR Motor rotates and the CR Unit moves back and forth two
times.*
4
CW/
CCW
---
---
6. Measurement of synchronized drive timing correction
6-1.The PF Motor and ASF Motor rotate.
---
CW/
CCW
CW/
CCW
7. Low temperature operation sequence
*5
7-1.The PF Motor rotates clockwise, and the CR lock is unlocked.
---
CW
---
7-2.The CR Motor rotates and the CR Unit moves back and forth two
times.*
4
CW/
CCW
---
---
7-3.The PF Motor rotates counterclockwise and the CR lock is set.
---
CCW
---
8. Setting the PF Roller origin
8-1.The PF Motor rotates clockwise.
*6
---
CW
---
9. Sucking supply
9-1.The Decompression Motor Assy 1 rotates in turn (decompresses =>
vents to atmosphere), and the diaphragm pump sucks ink from the ink
cartridges.*
8
---
---
---
9-2.The Decompression Motor Assy 2 rotates in turn (decompresses =>
vents to atmosphere), and the diaphragm pump sucks ink from the ink
cartridges.*
8
---
---
---
10.Ink detection
10-1.Checks the ink consumption counters and the status of ink cartridges.
---
---
---
Table 1-1. Power-on Sequence
Operation
Movement of
Components
CR
Motor
rotation
PF
Motor
rotation
ASF
Motor
rotation
