Epson Perfection 4870 Photo Service Manual page 33
Color image scanner
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Also See for Perfection 4870 Photo:
- Brochure & specs (5 pages) ,
- Start here manual (9 pages)
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Perfection 4870 Photo
Start
Is the Harness
connected to the
Main Board and
Carriage?
Is the
Connector CN6
connected to the
Main Board?
Are the
Connectors
CN1, CN2 on the
CCD Board
connected?
Are the
Fluorescent Lamps
set on the Inverter
Board securely?
Replace the Main
Board.
Figure 3-3. The Fluorescent Lamps are not lit.
TROUBLESHOOTING
Connect the
Harness.
Connect the
Connector.
Connect the
Connectors.
Re-set them on the
Inverter Board.
Troubleshooting
Start
Is the Document
Remove smudge. (Refer to
Glass free from
"Chapter 6 6.1.1Cleaning".)
smudge, etc.?
*Image has white spots.
Are the
Mirrors in the
Remove smudge. (Refer to
Carriage free from
"Chapter 6 6.1.1Cleaning".)
smudge, etc.?
*Image has vertical streaks.
Is the
Sheet White
Replace the Upper
Section free from
smudge,
Housing.
distortion,
etc.?
Replace the Carriage
Is the CCD Sensor
Board normal?
Unit.
Is the scanned image
Replace the Main Board.
without problem?
Mechanism fault
(Must be replaced)
Figure 3-4. An image cannot be scanned clearly.
Revision A
33
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