Epson Perfection 1270 - Phenomenon-Based Troubleshooting

EPSON Perfection 1670 Photo/Perfection 1270 Revision B
TROUBLESHOOTING Troubleshooting 9
1.3 Troubleshooting
This section explains troubleshooting from the viewpoint of superficial phenomena.
Here, problems are classified on a unit level according to the superficial phenomena at
their occurrence. Referring to Table 1-2, find out the corresponding phenomenon and
check according to the corresponding reference table.
Table 1-2. Trouble Phenomena and Reference Tables
Table 1-3. Image Cannot Be Read Neatly
Table 1-4. If Power Is Switched ON, the Host Does Not Recognize the Scanner
Phenomenon Definition
Reference
Table
The image cannot be read neatly.
The image cannot be read neatly. 1-3
A "communication error" occurred.
When communication with the Host
is made again after occurrence of the
above error, a "communication
error" occurs.
If power is switched ON, the Host
does not recognize the scanner.
1-4
If power is switched ON, the Main
Unit does not operate.
The Main Unit does not perform
initialization operation.
1-5
A "fatal error" occurred.
If power is switched ON again after
occurrence of the above error, power
is not restored.
The Carriage Unit does not operate. 1-6
The Carriage Unit operates but the
error is displayed.
1-7
The Fluorescent Lamp does not turn
ON.
1-8
The optional TPU does not operate. The optional TPU does not operate. 1-9
Step Cause Check Point Judgment Action
1
Dirt has adhered to
the Document Glass.
(White spots appear
in the image.)
Has dirt adhered to the
Document Glass?
Yes
Remove the dirt.
(Refer to "Chapter 4
Maintenance".)
2
The Mirrors in the
Carriage Unit are
dirty.
(Vertical streaks
appear in the image.)
Has dirt adhered to the
Mirror section?
Yes
Remove the dirt.
(Blow away the dirt
with air.)
3
The I/F Board is
faulty.
-- --
Replace the I/F Board.
4
The CCD Sensor
Board is faulty.
-- --
Replace the Carriage
Unit.
Step Cause Check Point Judgment Action
1
The Host does not
support USB.
After choosing "My
Computer" -
"Properties" - "Device
Manager" on Windows,
is "Universal Serial Bus
Controller" valid?
No
Replace the Host.
2
The TWAIN Driver
supplied with the
scanner has not been
installed properly.
Has TWAIN Driver
supplied with the
scanner been installed
properly?
No
Install (or reinstall) the
correct TWAIN Driver.
3
The USB Cable is
faulty.
Is there no error after
replacement of the
USB Cable?
Yes
Replace the USB Cable.
4
The I/F Board is
faulty.
-- --
Replace the I/F Board.