Epson Stylus Pro 4900/Epson Stylus Pro 4910 Revision A
TROUBLE SHOOTING Abnormal Operations 90
Confidential
Abnormal noise when the driven release is
in operation.
Lack of lubrication on “SHAFT,
RELEASE, PAPER GUIDE, UPPER
UNIT”
Does the driven release move smoothly?
If it does not move smoothly, lubricate “SHAFT,
RELEASE, PAPER GUIDE, UPPER UNIT”. (See
P.421)
Release scale is not encoded properly.
Release scale damaged or dirty?
Release encoder attached properly?
Replace the Release Motor Assy if the release
scale has trouble. (See P.197)
Attach the release encoder properly if there are
any attachment troubles. (See P.198)
If the trouble still remains, replace the release
encoder.
Abnormal noise other than the ones listed
above
Abnormal noise other than the ones
listed above
Unfixed screws?
Springs and hooks fixed at proper positions?
Fix the parts to the same place in same manner as
before disassembly.
Harnesses or FFCs are not secured
properly after reassembly.
Harnesses and FFCs secured properly by clamps or tape?
Fix the parts to the same place in same manner as
before disassembly.
Color inks consumed when printing in
black
This is not a trouble. Both cleaning and
black printing consume color ink.
--- ---
A Maintenance Box is consumed faster
than the other
This is not a trouble. Maintenance Box
2 is rarely consumed except for
borderless printing.
--- ---
Table 2-6. Abnormal Operations
Symptom Cause Check Item Remedy
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