Xerox DocuColor 2240

09/03
2-140
DC 3535/2240/1632, WC M24
7-276
Initial issue
Status Indicator RAPs
7-276 Tray 3 Paper Size Sensor (TTM)
An abnormal A/D 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 (PL 16.1) for damage or incorrect mounting. Repair
or replace as required.
• Check the switch actuators on Tray 3 (PL 16.1) for wear or damage. Repair or replace as
required
Procedure
Ensure Tray 3 is closed. The voltage measured at P/J548-11 on the Tray Module PWB (PL
16.15) corresponds to the paper size in Table 1.
YN
There is +5 VDC from P/J820-1 to P/J820-3 on the Tray 3 Size Sensor.
YN
There is +5VDC from P/J548-12 to P/J548-10.
YN
Go to the +5VDC Wirenets (Figure 4) to troubleshoot the power circuit
Go to Figure 1. Check the wires from J548 to J820. If the check is OK, replace the
Tray Module PWB (PL 16.15).
Go to Figure 1. Check the wire from J548-11 to J820-2. If the wire is OK, replace the Tray
3 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 (PL 16.15). If the problem continues, replace
the Tray 3 Paper Size Sensor (PL 16.1).
Figure 1 7-276 RAP Circuit Diagram - Tray 3 Size Sensing (TTM)
Table 1 Tray 3 Size Sensor Values
Paper Size
S1
[007-108]
S3
[007-109]
Voltage
(J548-11)
No Tray OFF OFF 4.78
B5 LEF OFF ON 4.11
8.5x11 LEF ON OFF 2.23
A4 LEF ON ON 1.59