Xerox DocuColor 2240 Service Manual page 170

7-272 Tray 3 Paper Size Sensor (3TM)
An abnormal AD value was detected by the Tray 3 Paper Size sensor.
Initial Actions
• Check that the paper size setting is correct.
• Check the Tray 3 Paper Size Sensor
or replace as required.
• Check the switch actuators on Tray 3 for wear or damage.
Procedure
Ensure Tray 3 is properly closed. Measure the voltage at P/J548-11 on the Tray Module PWB
(PL 15.9). The voltage measured corresponds with the paper size in Table 1.
Y N
There is +5 VDC between P/J820-1 and 3 on the Paper Size Sensor
Y N
There is +5 VDC between P/J548-12 and 10 on the Tray Module PWB.
Y N
Go to the +5VDC Wirenets
Check the wires from P/J548
required.
Check the wire from P/J548-11 to P/J820-2 for damage. Repair or replace as required. If
the wire check out OK, replace the Tray 3 Paper Size Sensor
• Ensure that the connectors shown in the circuit diagram
nected and that the wires are not damaged.
• Replace the Tray 3 Paper Size Sensor
• If the problem persists, replace the Tray Module PWB
Initial issue
DC 3535/2240/1632, WC M24
(PL 15.1) for damage, or incorrect mounting. Repair
(PL
(Figure 4) to troubleshoot the power circuit.
to P/J820 (Figure 1) for damage. Repair or replace as
(PL 15.1).
(Figure 1) are securely con-
(PL 15.1).
(PL 15.9).
15.1).
Figure 1 7-272 RAP Circuit Diagram - Tray 3 Paper Size Sensing (3TM)
Table 1 Tray 3 Paper Size Sensor Values
Paper Size [007-108]
No Tray
A3SEF
11x17SEF
8.5x13SEF
B5 or 16K LEF
B5 or 8 x 10 SEF
8.5x11SEF
B4 or 8K SEF
A4SEF
8.5x14SEF
A4LEF
8.5x11LEF
A5 or 5.5x8.5SEF
09/03
2-137
S1 S2 S3 S4
[007-109] [007-110] [007-111]
OFF OFF OFF OFF
OFF OFF OFF ON
OFF OFF ON OFF
OFF OFF ON ON
OFF ON OFF ON
OFF ON ON OFF
OFF ON ON ON
ON OFF OFF ON
ON OFF ON OFF
ON OFF ON ON
ON ON OFF ON
ON ON ON OFF
ON ON ON ON
Voltage
J548-11
4.78
4.45
4.12
3.81
3.18
2.87
2.57
1.98
1.67
1.37
0.77
0.47
0.17
Status Indicator RAPs
7-272