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2. Paper dust exists on or around
Paper Jam Sensor
Paper Jam Sensor
1. Blow off the dust
with the accessory blower.
(See Sec.7.)
2. Execute “Key/Sensor” and “Sensor
Sensitive Level” tests in Sec. 9.3.6 to check
the sensor condition.
2. Execute “Key/Sensor” and “Sensor
Sensitive Level” tests in Sec. 9.3.6 to check
the sensor condition.
3. Paper Jam Sensor does not
work correctly.
work correctly.
1. Execute “Key/Sensor” test in the Sec. 9.3.6
to check the sensor condition.
2. Check the sensor alignment is proper.
(whether the sensor direction faces its
reflector.)
3. Check the following connections and
soldering condition on each connector.
a. CN3005 (PAPER JAM SENSOR Board) to
CN3002 (POINTER Board)
b. CN3001 (POINTER Board) to CN1012
(CONTROL Board)
4. Check the following signals.
a. JAM signal (CN1012-2nd pin)
to check the sensor condition.
2. Check the sensor alignment is proper.
(whether the sensor direction faces its
reflector.)
3. Check the following connections and
soldering condition on each connector.
a. CN3005 (PAPER JAM SENSOR Board) to
CN3002 (POINTER Board)
b. CN3001 (POINTER Board) to CN1012
(CONTROL Board)
4. Check the following signals.
a. JAM signal (CN1012-2nd pin)
→
0 V (when none exists on the JAM
Sensor)
b. Check the reference signal for the JAM
signal on the CONTROL signal.
b. Check the reference signal for the JAM
signal on the CONTROL signal.
→
IC1017-6th pin: 1.5 V or less
→
IC1020-5th pin: Approx. 1.5 V
c. Check comparator output signal.
→
IC1020-7th pin: 3.3 V (when no document
exists)
5. Replace faulty parts or boards.
5. Replace faulty parts or boards.
4. Mechanical problem (Drive
Rollers, Drive Belt, Conveyor Belt)
Rollers, Drive Belt, Conveyor Belt)
1. Check the Pointer’s mechanical position and
Pointer Detector’s status.
2. Execute “Conveyor Motor” test in Sec.
9.3.6 to check the mechanical condition.
3. Check whether the Drive Rollers (2, 3, 4),
Drive Belt, Conveyor Belt, and the
conveyors to support the Drive Rollers are
assembled properly in the scanner.
4. Check the surfaces of the Drive Rollers
(2, 3, 4).
a. Configuration:
Are the rollers irregular in shape?
(For example: Are the rollers swollen?)
Pointer Detector’s status.
2. Execute “Conveyor Motor” test in Sec.
9.3.6 to check the mechanical condition.
3. Check whether the Drive Rollers (2, 3, 4),
Drive Belt, Conveyor Belt, and the
conveyors to support the Drive Rollers are
assembled properly in the scanner.
4. Check the surfaces of the Drive Rollers
(2, 3, 4).
a. Configuration:
Are the rollers irregular in shape?
(For example: Are the rollers swollen?)
→
Replace the rollers.
b. Whether the roller surfaces are dirty
→
Clean the surfaces.
5. Check whether the Drive Belt or Conveyor
Belt tension is proper.
Belt tension is proper.
→
Re-adjust the belt tension.
U14 (Conveyor Jam3:
Paper did not reach the
Exit Sensor.)
Paper did not reach the
Exit Sensor.)
14
00
00
00 1. Document remains between
Paper Jam Sensor and Exit
Sensor.
Sensor.
Remove the document from the scanner.
2. Paper dust exists on or around
the Exit Sensor.
the Exit Sensor.
1. Blow off the dust with the accessory blower.
(See Sec.7.)
2. Execute “Key/Sensor” and “Sensor
Sensitive Level” tests in Sec.9.3.6 to check
the sensor condition
(See Sec.7.)
2. Execute “Key/Sensor” and “Sensor
Sensitive Level” tests in Sec.9.3.6 to check
the sensor condition
Error Code
Possible Cause
Check Point
Remarks
Classification
Code
ST1 ST2 ST3 ST4
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