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Chapter 3 Troubleshooting
007-122 TRAY 4 FEED JAM (TTM)
Description
The TRAY 4 FEED OUT SENSOR detected
paper when the TRAY 4 is pulled out and pushed in during a
JOB.
DC330 Codes to be checked
DC330
[008-103] TRAY 4 FEED OUT SENSOR
Check Items
• The TRAY 4 FEED OUT SENSOR for an operation failure
• A paper transportation failure due to a foreign substance/
burr on the paper path
• Use of paper out of spec (Spec: Refer to Chapter 1
Specifications.)
• The TRAY MODULE PWB for a failure
007-250 TRAY COMMUNICATION FAILURE
Description
A communication failure between the TRAY
MODULE PWB and the MCU PWB was detected.
BSD on : CH1.4 CH1.5 CH3.1D
Procedure
Is +5 VDC measured between the TRAY MODULE PWB
J555-1 (+) and GND (-)?
Y
N
Check the +5VDC circuit to the TRAY MODULE PWB
J555-1 by referring to Chapter 4 Wiring Data. (WN4.3.6
+5 VDC-2)
Is +24VDC measured between the TRAY MODULE PWB
J555-3 (+) and GND (-)?
Y
N
Check the +24VDC circuit to the TRAY MODULE PWB
J555-3 by referring to Chapter 4 Wiring Data. (WN4.3.13
+24 VDC-3)
Turn Off the power. Check conductivity of the following:
• Between the I/F PWB J535-A12 and the TRAY MODULE
PWB J541-7
• Between the I/F PWB J535-A13 and the TRAY MODULE
PWB J541-9
• Between the I/F PWB J535-A11 and the TRAY MODULE
PWB J541-5
• Between the I/F PWB J535-A10 and the TRAY MODULE
PWB J541-4
Is the resistance 1 Ohm or less for all wires?
Y
N
Check wires with more than 1 Ohm for an open circuit or
poor contact.
Replace the following parts:
• TRAY MODULE PWB (PL15.9/PL14.15)
• MCU PWB (PL13.1)
• I/F PWB (PL9.1)
007-252 OUT MODULE LOGIC FAILURE
Description
Incorrect data was detected on the software.
BSD on : CH3.6A
Procedure
If the problem persists after turning the power On/Off, perform
the re-installation of the software.
If the problem persists, replace the MCU PWB. (PL13.1)
007-270 TRAY 1 PAPER SIZE SENSOR BROKEN
Description
The abnormal AD value was detected by the
TRAY 1 PAPER SIZE SENSOR.
BSD on : CH7.1 CH7.10A
Procedure
Install the TRAY 1 into the M/C.
Does the voltage between the I/F PWB J536-B9 (+) and GND (-)
correspond to the TRAY 1 PAPER SIZE SENSOR Output Table
described in BSD: CH7.1?
Y
N
Does the voltage between the TRAY 1 PAPER SIZE
SENSOR J115-2 (+) and GND (-) correspond to the TRAY
1 SIZE SENSOR Output Table described in the BSD:
CH7.1.
Y
N
Is +3.3 VDC measured between the TRAY 1 SIZE
SENSOR J115-1 (+) and J115-3 (-)?
Y
N
Check the +3.3 VDC circuit to the TRAY 1
PAPER SIZE SENSOR J115-1 by referring to
Chapter 4 Wiring Data. (WN4.3.3 +3.3 VDC)
Check the Paper Guide for an operation failure, and
the tab that pushes the SWITCH for a poor contact. If
no problems are found, replace the TRAY 1 PAPER
SIZE SENSOR. (PL2.1)
Check the wire between the TRAY 1 PAPER SIZE
SENSOR J115-2 and the I/F PWB J536-B9 for an open
circuit and poor contact.
Replace the following parts:
• I/F PWB (PL9.1)
• MCU PWB (PL13.1)
007-271 TRAY 2 PAPER SIZE SENSOR BROKEN
Description
The abnormal AD value was detected by the
TRAY 2 PAPER SIZE SENSOR.
BSD on : CH7.2 CH7.10A
Procedure
Install the TRAY 2 into the M/C.
Does the voltage between the TRAY MODULE PWB J546-8
(+) and GND (-) correspond to the TRAY 2 PAPER SIZE
SENSOR Output Table described in the BSD: CH7.2?
Y
N
Does the voltage between the TRAY 2 PAPER SIZE
SENSOR J816-2 (+) and GND (-) correspond to the TRAY
2 SIZE SENSOR Output Table described in the BSD:
CH7.2?
Y
N
Is +5 VDC measured between the TRAY 2 SIZE
SENSOR J816-1 (+) and J816-3 (-)?
Содержание DP-C321
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