Maintenance Manual Service Maintenance
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SYMPTOM:
The paper doesn't advance correctly.
CAUSE:
The paper motor cable is not correctly mounted.
ACTION:
Check for paper motor connection on main board.
CAUSE:
The paper motor may be faulty.
ACTION:
Check for paper motor impedance or connection on main board.
Replace the paper motor.
CAUSE:
The paper movement has not equal line spacing.
ACTION:
Check for paper belt tension to be correct.
Check for the paper belt adjustment.
CAUSE:
The main board may be faulty.
ACTION:
Install a new one.
CAUSE:
The paper holes of fanfold are torn.
ACTION:
Remove torn paper and replace with incoming proper sheet.
Check the tension of the paper between left and right tractors.
CAUSE:
Paper is not correctly aligned on sprocket wheels.
ACTION:
Relaod paper, ensuring that corresponding holes at each side of the
paper are correctly aligned on tractor (see tractor assy removal).
SYMPTOM:
The printer initialized, but the display and Leds are off.
O.P. keys are available.
CAUSE:
The connection of the operator panel board and main board is bad.
ACTION:
Verify the connection.
Replace the cable or the o.p. board or the display.
SYMPTOM:
The printer initialized, but only the display is off.
O.P. key are not available.
CAUSE:
The connection of the operator panel board and main board is bad.
ACTION:
Verify the connection.
Replace the cable or the o.p. board or the display.
CAUSE:
The ribbon sensor is faulty.
ACTION:
Check for the ribbon sensor action through the pivot assy.
Replace the pivot assy.
Replace the sensors cable group.
Replace the ribbon motor assy.
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LA400 Multiprinter 6. 14 ER-LA400-SV
