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