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63
U23: Double
Feed error
Feed error
1C
00
03
00 1. Thickness of the document
is out of specifications.
1. Only place documents that follow this scanner
specifications on the Feed Tray.
2. Paper Feed Roller or DFP
Roller is not assembled
correctly.
correctly.
Refer to U11 - 2.
3. Rollers (Paper Feed, DFP)
are dirty.
Refer to U11 - 1.
4. Rollers have reached their
life expectancy.
Refer to U11 - 3.
5. Double Feed Detector
(Generate) does not work
properly.
properly.
1. Perform "Double Feed" test in Sec.
10.3.8.
to
check the detector condition.
2. Perform "Double Feed" adjustment in Sec.
10.3.9.
3. Check whether the ULTRASONIC SENSOR (G)
Board is attached to the scanner properly.
4. Check the following connection and soldering
condition on each connector.
CN15 (CONTROL Board) to CN2001 on
ULTRASONIC SENSOR(G) Board
CN15 (CONTROL Board) to CN2001 on
ULTRASONIC SENSOR(G) Board
5. Check the following parts' soldering condition to
repair it.
R487, Q27, Q28, Q30, Q32, Q33, Q35, Q36, Q37,
Q38, L58, L59
R487, Q27, Q28, Q30, Q32, Q33, Q35, Q36, Q37,
Q38, L58, L59
6. Check the following signals.
a. +24V_SLP signal (R487 or CL160): 24V DC
b. CN15-2nd pin: See
b. CN15-2nd pin: See
Fig.11.2.4.
7. Replace faulty parts or boards.
6. Double Feed Detector
(Receive) does not work
properly.
properly.
1. Perform "Double Feed" test in Sec.
10.3.8.
to
check the detector condition.
2. Perform "Double Feed" adjustment in Sec.
10.3.9.
3. Check whether the STARTING SENSOR Board is
attached to the scanner properly.
4. Check the following connection and soldering
condition on each connector.
CN2301 (STARTING SENSOR Board) to
CN14 (CONTROL Board)
CN2301 (STARTING SENSOR Board) to
CN14 (CONTROL Board)
5. Check the following parts' soldering condition to
repair it.
a. CONTROL Board
R496 : See
a. CONTROL Board
R496 : See
Fig.11.2.5.
b. STARTING SENSOR Board's Circuit
IC2301, and its surrounding circuits
IC2301, and its surrounding circuits
6. Check the following signals.
CN14-2nd pin : DC 12 V
7. Replace faulty parts or boards.
Error Code
ST1 ST2 ST3 ST4
Possible Cause
Recommended action
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