Diagnostic information 2-185
7510
940.00 MPF tray 5 size sensing error
941.00 Switch (media size) size sensing error (tray 1)
2
Check the sensor (Y toner RFID) for proper connection.
Is the above component properly connected?
Replace the
CMYK toner add
motor assembly.
Go to “CMYK
toner add motor
assembly
removal” on
page 4-103.
Replace the
connection.
3
Perform a POR.
Does the error occur 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 Perform a POR.
Does the error occur when the power is turned off/on?
Go to step 2. Problem solved.
2
Check the MPF feed unit assembly.
Is the above component properly connected?
Replace the MPF
feed unit
assembly
.
Go to “MPF feed
unit assembly
removal” on
page 4-8.
Replace the
connection.
3
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 1properly?
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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