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Fuser Narrow Media Sensor Service Check - Dell 5310n - Workgroup Laser Printer B/W Service Manual

Service manual.
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FRU
5

Fuser narrow media sensor service check

If any of the following error codes are displayed, a problem may exist in the area of the narrow media sensor
assembly: 201.04, 201.14, 201.24, 201.34, 201.44, 201.54, and 201.94.
Fuser exit and fuser narrow media sensor status check
Printer not printing— no media
over sensors
Exit sensor open
Narrow media sensor open
FRU
Fuser narrow media sensor
1
(sensor test)
Fuser narrow media sensor
2
cable
Fuser narrow media sensor
3
flag
Fuser assembly
4
Fuser narrow media sensor
cable
Fuser board
Fuser to system board
cable
System board
Action
With the redrive assembly removed from the printer, enter the
Diagnostics mode and run the print test from tray 1 (for example,
select PRINT TESTS, Tray 1, and Continuous) and observe the
media as it passes over the exit and narrow media sensors. Check
that the sensor flags are operating correctly. If the sensor flags and
hardware are operating incorrectly, repair or replace the failing
sensor assembly. If no problem is found, check the fuser for any
signs of media in the fuser or any signs of toner or other
contamination. If a problem is found, clean or remove the debris or
contamination.
Printer printing—media over
sensor(s), non-narrow media fed
through the printer
Exit sensor closed
Narrow media sensor closed
Action
Enter the Diagnostics mode, select BASE SENSOR TEST, and
select the NM Sensor to test it for proper operation. If the narrow
media sensor fails the test, go to step 2; if the narrow media sensor
does not pass the test, go to step 5.
Check the fuser narrow media sensor cable for correct installation or
any signs of damage to the cable or to the connectors. If no problem
is found, go to step 3;. If a problem with the installation is found,
install the cable correctly. If damage to the cable or the connectors is
found, replace the cable.
Make sure the sensor flag is not binding and is operating properly. If
the sensor is operating properly, go to step 4. If the sensor is not
operation properly, repair or replace the sensor assembly. See
"Fuser narrow media sensor removal" on page
Check the continuity of the fuser narrow media sensor cable. If
incorrect, replace the cable; if correct, check the continuity of the
fuser to system board cable. If incorrect, replace the cable; if correct,
replace the following FRUs in the order shown:
• Fuser board
• Fuser assembly. See
• System board. See
"System board and inner shield removal"
on page
4-77.
Printer printing—narrow media
fed through the printer
Exit sensor closed
Narrow media sensor open
4-35.
"Fuser assembly removal" on page
Diagnostic information
4-27.
2-93

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