2-168 Service Manual
7510
943.00 Switch (media size) size sensing error (tray 3)
3
Check the sensor (media level) (tray 2) for proper
connection.
Is the above component properly connected?
Replace the
sensor (media
level).
Go to “Sensor
(media level)
removal” on
page 4-24.
Replace the
connection.
4
Check the media feed/lift motor (tray 2) for proper
operation.
Caution: When performing motor tests,
ensure that all cover and door interlock
switches are overridden.
1. Enter the Diagnostics Menu.
2. Touch MOTOR TESTS.
3. Touch Tray 2 media feed/lift motor.
Warning: The media tray must be opened before performing
this test or paper jam may occur.
Does the above component operate properly?
Go to step 6. Go to step 5.
5
Check the media feed/lift motor (tray 2) for proper
connection.
Is the above component properly connected?
Replace the media
feed/lift motor.
Go to “Media feed
lift motor
removal” on
page 4-113.
Replace the
connection.
6
Perform a POR.
Does the error continue when the power is turned off/on?
Replace the upper
printer engine card
assembly.
Go to “Upper
printer engine
card assembly
removal” on
page 4-77.
Problem solved.
Step Check Yes No
1 Check the media.
Is media loaded in tray 3 properly?
Go to step 2. Load media
properly.
2
Check the media tray.
Are the size sensing mechanisms on the back and the
bottom of the media tray damaged.
Replace the media
tray assembly.
Go to step 3.
Step Check Yes No
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