Epson L1800 Service Manual page 38

L1800
Observed Faults Details of the Fault
Borderless Printing Cannot make a borderless
printing (The printer prints with
margins despite the borderless
setting).
Pattern misalignment The vertical lines are not aligned
for vertical lines and at monochrome draft printing.
such
Blank print Inks are not ejected from Print
Head even though Carriage
moves and paper is fed.
Occurrence Timing Details of the Fault
– Printing operation is performed
normally but abnormal noise is
produced at power-on or during
operations.
Troubleshooting
Table 2-8. Print Quality Troubles
Faulty Part/
Part Name
PW sensor 1. Check if the paper dust or scrap of the paper is attached to the
Front Paper Guide.
2. Check that PW adjustment has executed properly.
Adjustment 1. Check that BAND printing adjustment has executed properly.
Valve 1. Check that Valve of Ink Tank opens.
(Valve Lever)
Ink Tube 1. Check that Ink Tubes are not crumpled.
Adapter 1. Check that Ink Tube connections are complete.
Ink Tube
Tube Joint
Ink Supply Tank
Table 2-9. Abnormal Noise
Faulty Part/
Part Name
Adjustment 1. Check that PF Belt Tension Adjustment has been executed
properly.
Carriage Shaft 1. Check that the Carriage Shaft is fully lubricated with grease.
Overview
Check Point
Check Point
Revision A
Remedy
1. Remove the paper dust or scrap of the paper.
2. If the borderless printing still can not be made
after the adjustment, replace the PW Sensor
with a new one.
Refer to Chapter 4 "Adjustment".
1. Make the adjustment according to the specified
adjustment priority.
Refer to Chapter 4 "Adjustment".
1. Open Valve.
1. Release crumpled Ink Tube.
1. Reassemble Ink Tubes and compete their
connections.
Remedy
1. Make the adjustment according to the specified
adjustment priority.
Refer to Chapter 4 "Adjustment".
1. Wipe the grease applied to the Carriage Shaft
with a dry, soft cloth, and then apply grease (G-
71).
Refer to Chapter 5 "Maintenance".
Confidential
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