EPSON
PRINTER
2.7
PAPER
FEED
MOTOR
1.
Remove
topcover(Procedure
4.1).
Reconnect
control
panel(Procedure
4.2).
Check
for gears binding: binding of
platen
or pin feed sprockets: obstructions(paper clips
or paper) around platen or in
paper
guide. Repair any problems found.
Problem
is
solved.
YES
NO
Using
TABLE
2.5
and
FIGURE
2-5,
cj^eck
the
resistances
ofthe paper
feed
motor.
All
resistances
are
correct.
YES
NO
i
Replace
paper
feed
motor
(Procedure4.13).
Problem
is
solved.
YES
NO
Replace
printer
mechanism
(Procedure
4.7).
Problem
is
solved.
YES
NO
1
Replace
main
board
(Procedure4.6).
I
Return
to
the
initial
checks
and
continue.
Replace
main
board
(Procedure 4.6).
Problem
is
solved.
YES
NO
Replace printer mechanism (Procedure 4.7).
I
2.
Return
to
the
initial
checks
and
continue.
2-9
REPAIR
ANALYSIS
PROCEDURES
2.8
INCORRECT
CONTROL
PANEL
STATUS
1. Remove
lop
cover
(Procedure
4.1). Reconnect
control
panel
(Procedure 4.2). Check
that
the
connector
between
the
main
board
and
control
panel
is
properly
connected.
Cable
is
properly
connected
and
not
damaged.
YES
NO
Repair
the
connection
/
damage.
Problem
is
solved.
YES
NO
Return
to
the
initial
checks
and
continue.
2. Check
the
LED
voltages on
the
control panel (see
TABLE
2.4 for
the
voltages
and
the
test
points).
All
voltages
are
correct.
YES
NO
Replace
the
main
board
(Procedure 4.6).
Return
to
the
initial
checks
and
continue.
3. Replace
the
control panel (Procedure 4.2).
Return
to
the
initial
checks
and
continue.