Diagnostic information 2-171
7510
944.01 Sensor (media level) late error (tray 4)
3
Check the tray 4 switch (media size) for proper
operation.
1. Enter the Diagnostics Menu.
2. Touch INPUT TRAY TESTS.
3. Touch Sensor Test.
4. Touch Tray 4.
5. Touch Tray 4 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 4 switch (media
size) for proper connection.
TTM equipped machines check the tray 4 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 4-212.
Replace the switch
(TTM media size) for
TTM.
“2000-sheet dual
input
(TTM)–switch
(TTM media size)
removal” on
page 4-182.
Replace the
connection.
5
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 4 properly?
Go to step 2. Load media
properly.
2
Check the sensor (media level) (tray 4) for proper operation.
1. Enter the Diagnostics Menu.
2. Touch INPUT TRAY TESTS.
3. Touch Sensor Test.
4. Touch Tray 4.
5. Touch Media level.
Does the display on the operator panel, change every time
the media tray is opened and closed?
Go to step 4. Go to step 3.
Step Check Yes No
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