Xerox ColorQube 9303 Series, Service Manual

Page: 344 / 1812

February 2013
2-320 ColorQube® 9303 Family
74A
Status Indicator RAPs
74A Bypass Tray 4 Size Sensing Problems RAP
Use this RAP to troubleshoot problems when the bypass tray 4 fails to indicate the correct
paper size.
Initial Actions
WARNING
Ensure that the electricity to the machine is switched off while performing tasks that do
not need electricity. Refer to
GP 14 . Disconnect the power cord. Electricity can cause
death or injury. Moving parts can cause injury.
• Check the condition of the media used in the bypass tray. Refer to IQ 1 and GP 20 .
• Check that the width sensor guide is up to the edge of the paper.
• If there is a width sensing problem, then check that the bypass tray width sensing potenti-
ometer,
PL 74.11 Item 10 is not damaged.
Procedure
Enter dC330 code 74-335 bypass empty sensor, Q74-335, PL 74.10 Item 18 . Press Start. Man-
ually actuate the sensor. The display changes.
Y
N
Refer to
WD 8.3 . Check the bypass empty sensor, Q74-335. Refer to:
• GP 11 How to Check a Sensor.
• PJ405, Media path driver PWB .
• 01C +3.3V Distribution RAP.
• 01L 0V Distribution RAP.
Install new components as necessary.
• Bypass empty sensor, PL 74.10 Item 18 .
• Media path driver PWB, PL 1.15 Item 5 .
Enter dC330 code 74-350 bypass width sensor Q74-350, PL 74.11 Item 6 . Press Start. Move
the width guides to actuate the sensor. The display changes.
Y
N
Refer to
WD 8.3 .Check bypass width sensor, Q74-350. Refer to:
• GP 11 How to Check a Sensor.
• PJ405, Media path driver PWB.
• 01C +3.3V Distribution RAP.
• 01L 0V Distribution RAP.
Install new components as necessary.
• Bypass width sensor, PL 74.11 Item 6 .
• Media path driver PWB, PL 1.15 Item 5 .
Enter dC140 code 74-415 Bypass width potentiometer, Q74-415, PL 74.11 Item 10 . Press
Start. Move the width guides to actuate the sensor. The display changes.
Y N
NOTE: The width sensor is a potentiometer. The arm on the potentiometer is attached to
the bypass tray side guide. This gives a variable voltage to indicate the paper width set-
ting.
Refer to WD 8.3 . Check bypass width potentiometer, Q74-415. Refer to:
• PJ405, Media path driver PWB.
• 01C +3.3V Distribution RAP.
• 01L 0V Distribution RAP.
Install new components as necessary.
• Bypass module, PL 74.10 Item 1 .
• Media path driver PWB, PL 1.15 Item 5 .
Perform the following:
• Ensure that the customer is not filling the tray above the max fill line.
• Clean the feed, retard and nudger roll with a cloth dampened with water, GP 27 .
• If necessary, install new components as required, PL 74.10 .