Diagnostic information 2-189
7510
943.00 Switch (media size) size sensing error (tray 3)
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 4-120.
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 4-88.
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.
3
Check the tray 3 switch (media size) for proper
operation.
1. Enter the Diagnostics Menu.
2. Touch INPUT TRAY TESTS.
3. Touch Sensor Test.
4. Touch Tray 3.
5. Touch Tray 3 present.
Does the display on the operator panel, change every
time the media tray is opened and closed?
Go to step 5. Go to step 4.
4
3TM equipped machines check the tray 3 switch (media
size) for proper connection.
TTM equipped machines check the tray 3 Switch (TTM
media size for proper connection.
Is the above component properly connected?
Replace the switch
(media size) for
3TM.
Go to “3X 500-
sheet drawer
(3TM)—switch
(media size)
removal” on
page 4-219.
Replace the switch
(TTM media size) for
TTM.
“2000-sheet dual
input (TTM)—
switch (TTM media
size) removal” on
page 4-189.
Replace the
connection.
Step Check Yes No
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