Xerox DocuColor 2240 Service Manual page 174

7-277 Tray 4 Paper Size Sensor (TTM)
An abnormal A/D value was detected by the Tray 4 Paper Size Sensor.
Initial Actions
• Check that the paper size setting is correct.
• Check the Tray 4 Paper Size Sensor
or replace as required.
• Check the switch actuators on Tray 4
required
Procedure
Ensure Tray 4 is closed. The voltage measured at P/J548-5 on the Tray Module PWB
16.15) corresponds to the paper size in
Y N
There is +5VDC from P/J824-1 to P/J824-3 on the Tray 4 Size Sensor.
Y N
There is +5VDC from P/J548-6 to P/J548-4.
Y N
Go to the +5VDC Wirenets
Go to Figure 1. Check the wires and connectors. If the check is OK, replace the
Tray Module PWB (PL 16.15).
Go to Figure 1. Check the wires from J548 to J824. If the check is OK, replace the
Tray 2 Paper Size Sensor (PL
Go to Figure 1. Check the wire from J824-2 to J548-5. If the wire is OK, replace the Tray 2
Paper Size Sensor (PL 16.1).
Go to Figure 1. Check the wires and connectors for intermittent shorts or loose connections. If
the check is OK, replace the Tray Module PWB
the Tray 4 Paper Size Sensor (PL 16.1).
Table 1 Tray 4 Size Sensor Values
Paper Size
No Tray
B5 LEF
8.5x11 LEF
A4 LEF
Initial issue
DC 3535/2240/1632, WC M24
(PL 16.1) for damage or incorrect mounting. Repair
(PL 16.1) for wear or damage. Repair or replace as
Table 1.
(Figure 4) to troubleshoot the power circuit.
16.1).
(PL 16.15). If the problem continues, replace
S1 S3 Voltage
[007-112] [007-113] (J548-5)
OFF OFF 4.78
OFF ON 4.11
ON OFF 2.23
ON ON 1.59
(PL
Figure 1 7-277 RAP Circuit Diagram - Tray 4 Size Sensing (TTM)
09/03
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Status Indicator RAPs
7-277