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Epson WF-R8590
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Confidential
Power-On Seq
uence
17
EPSON WF-R8
590/WF-R8591/W
F-R8593
Revision F
1.2
Power-On
Sequence
This section describes the
power-on sequences for this product. The preconditions are as
follows.
Normal power-on sequence
No error occurred at the last power-on, a
nd the power was turned off normally.
Initial ink charge has finished and every pack has sufficient ink.
No paper on the paper path.
The Printhead is capped by the cap of the Ink System.
CR Lock is engaged normally.
This indicates the Simple Sequence.
PG position is set to PG 1.
Option Cassette Unit is not installed.
The following explains how to use the
simplified diagrams in
Table 1-1
or
Table 1-2
. The
diagrams show the movement of each component as seen from the
front of the printer.
Figur
e 1-4.
Movem
ent o
f Com
pone
nts
Tabl
e 1-
1.
Powe
r-on
Sequ
ence
Operation
Movement of
Components
CR
Motor
rotation
PF
Motor
rotation
ASF
Motor
rotation
1.
AP
G
res
et
1-1.If PG is other than 1, the APG Motor rotates to set PG to 1.*
9
-
-
-
-
-
-
-
-
-
2.
Print
head initia
lizat
ion and fuse inspect
ion
2-1.Initializes the Printhead, and checks the fuse on the printer control
circuit board.
*1
-
-
-
-
-
-
-
-
-
3.
Seekin
g the
home
posit
ion
3-1.To identify the CR Unit position, the CR Motor rotates
counterclockwise and it confirms the CR Unit touches the Right Frame
slowly. It regards the point when the CR Unit touches the Right Frame
as the position specified steps away from the home position, and sets it
as the origin.
C
C
W
-
-
-
-
-
-
3-2.If it judges the CR Unit is in the home position, the PF Motor rotates
clockwise and resets the CR lock.
-
-
-
C
W
-
-
-
3-3.The PF Motor rotates counterclockwise and sets the CR lock.
-
-
-
C
C
W
-
-
-
The condition of the CR lock
R
e
d
:
C
R
l
o
c
k
i
s
s
e
t
Whi
te:
CR
loc
k i
s r
ele
ase
d
The above shows the CR lock is set.
Carriage movement
Right-pointing arrow: Moves to the 0-digit side
Left-pointing arrow: Moves to the 130-digit side
The figure shows the carriage is moving to the 0-digit side.
Digit number of CR
PF Roller
Carriage
The rotation direction of
the ASF Motor
Clockwise:
Paper is fed normally
Counterclockwise:
Paper is fed backward
The above shows clockwise
rotation.
The rotation direction of
the PF Motor
Clockwise:
Paper is fed normally
Counterclockwise:
Paper is fed backward
The above shows clockwise
rotation.

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