U16; 00 Document Remains In Scanner - Philips KV-S5055C Service Manual

Error Code
Classified Code ST1 ST2 ST3 ST4
U16 (Exit Jam1: Paper 16
did not pass through
the Exit Sensor)
U18 (Paper remains in 18
the scanner)
Possible Cause
3. Exit Sensor does not work,
correctly
4. Mechanical problem (Drive
Rollers, Drive Belt, Conveyor)
00 00 00 1. Document remains forward
Exit Sensor.
2. Paper dust exists on or around
the Exit Sensor.
3. Mechanical problem (Exit Roller,
Drive Belt, Conveyor)
xx 00 00 1. Document remains in scanner.
2. Paper dust exists on a sensor.
Check Point
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 to its
reflector.)
3. Check the following connection and
soldering condition on each connector.
a. CN3003 (ENDING SENSOR Board)
to CN2004 (USR RELAY Board)
b. CN2001 (USR RELAY Board)
to CN1007 (CONTROL Board)
4. Check the following signals.
a. ENDING signal (CN2004-1st or
CN1007-4th pin)
→ 0 V (when none exists on the
Exit Sensor)
b. Check the reference signal for the
ENDING signal on the CONTROL Board.
IC0023-5th pin: 1.5 V or less
IC0025-6th pin: Approx. 1.5 V
c. Check comparator output signal.
→ IC0017-6th pin: 3.3 V (when no
document exists)
5. Replace faulty parts or cables.
1. Execute Conveyor Motor test in Sec.9.3.6
to check the mechanical condition.
2. Check whether the Drive Rollers (2, 3),
Drive Belt, and the conveyor to support
the Drive Rollers are put together into
the scanner, properly.
3. Check the surfaces of the Drive Rollers
(2, 3).
a. Configuration:
Do the rollers swell irregularly?
→ Replace the rollers.
b. Whether the roller surfaces are dirty
→ Clean the surfaces.
4. Check whether the Drive Belt tension is
proper.
Remove the document from the scanner.
1. Blow off the dirt with the accessory blower.
(See Sec.7.2.)
2. Execute Key/Sensor and Sensor Sensitive
Level tests in Sec. 9.3.6 to check the sensor
condition.
1. Execute Conveyor Motor test in Sec.9.3.6
to check the mechanical condition.
2. Check whether the Drive Roller (3), Exit
Roller, Drive Belt, and the conveyor to
support the rollers are put together into the
scanner, properly.
3. Check the surfaces of the Drive Roller (3)
and the Exit Roller.
a. Configuration:
Do the rollers swell irregularly?
→ Replace the rollers.
b. Whether the roller surfaces are dirty
→Clean the surfaces.
4. Check whether the Drive Belt tension is
proper.
→ Re-adjust the belt tension.
Remove the document from the scanner.
1. Execute Key/Sensor and Sensor Sensitive
Level tests in Sec. 9.3.6 to define the sensor
that results in this problem.
2. Blow off the dirt on the surface of the sensor
with the accessory blower. (See Sec.7.2.)
111
Remarks