Symptom
Printing stops intermittently or printer
prints backward when running
diagnostics or programs.
Printing stops.
Print head carrier stops near right
side.
051
error.
Breaking print wires, jamming ribbon,
and jamming paper.
Solid 050 error.
Intermittent 057 errors while printing.
051
errors.
057 and 059 errors.
Forms movement problem
with
no
error codes.
3·104
Isolation Aid
Disable the end
of
the forms switch
by jumpering
A1-A3D13
to
Al-A3C08.
Ifthe
symptom
disappears, the problem is in the end
of
the forms switch, the mechanism,
or the wiring.
Component failures are not always
detected by the static checks. They
can, however, cause the printer
to
fail
under dynamic (operating) conditions.
An oscilloscope normally is required
to
detect these problems.
Check
that
the belt clamp does not
touch the print head stepper motor
when the print head carrier is moved
to
the extreme right.
None.
Check
for
the correct part number on
the printer adapter card and the H2
card.
Probe the P13 pin on the printer
adapter card
to
ensure
'EOF
line is
up.
ON/OFF
switch checks OK.
Print emitter board course adjustment
screws are loose.
Check
for
+8.5 volts in the 5103.
None.
Customer uses APL, and program is
not checking
for
error codes.
Fix
Adjust, repair, or replace the end'
of
forms switch, the wiring,
or
the
mechanism.
(See
the 5103 MIM.)
Check the print emitter or print
emitter pickup boards
for
warpage
or
contaminants. Adjust, repair,
or
replace as required.
(See
the 5103
MIM.)
Replace the forms feed photocell
assembly
or
forms feed emitter
amplifier. (See the 5103 MIM.1
Adjust the belt clamp
as
required.
Replace print head cable.
If
the H2 card is part 1607112 and
the printer adapter card is part
1607124, the adapter card is
for
a
120 characters per second printer.
Replace the printer adapter card
with
part 1607130, which is
for
a 60
characters per second printer.
Repair defective A 1 power board.
Tighten print emitter board course
adjustment screws.
If
the +8.5 volt power is missing,
repair the connection on the A 1
power connector
in
the 5100.
Replace the missing pin that holds the
print head pulley
to
the stepper
motor.
When error codes are checked and
052 errors occur, replace defective
forms emitter stepper motor.
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