Lexmark C77X, Service Manual

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Diagnostic aids
3-21
5061
3.
Manually actuate each sensor. The tray empty sensor can be actuated by hand, however, a sheet of paper
can be used to cover the pass thru sensor. When the sensor is closed,
CL
displays when the sensor is
open,
OP
appears.
4.
Press Back ( ) or Stop ( ) to exit the test.
For 2000-sheet trays
This test can also be used to determine if the 2000-sheet tray sensors are working correctly.
1.
Select Sensor Test from INPUT TRAY TESTS in the Diagnostics mode. for the tray you want to test.
The display lists the sensors and their current state, for example:
The selected tray is displayed on line 1 (< input tray > is either Tray 2 , Tray 3 , or Tray 4 .)
2.
Manually actuate each tray sensor by moving the flag in and out of the sensor. Open appears when the
flag is out of the sensor, or Closed when the flag is in the sensor.
OUTPUT BIN TESTS
Feed Test
Note: If the “Configure Bins” printer setting is link rather than mailbox, the printer selects its own internal bin
linking regardless of which output bin is selected for the feed test.
This test verifies that media can be fed to a specific output bin. No information is printed on the media because
the printhead is not turned on during this test.
To run the Output Bin Feed Test:
1.
Select Feed Test from OUTPUT BIN TESTS in the Diagnostics mode.
2.
Select the output bin you want the paper to exit into. All output bins installed on the printer are shown on
the feed test menu.
3.
Select either Single (one sheet of media feeds to the selected output bin) or Continuous (media
continues feeding to the selected output bin) until Back ( ) or Stop ( ) is pressed.
4.
Press Back ( ) or Stop ( ) to exit the test.
Feed to All Bins
One page is fed to every bin, including the finisher, if available. The test runs continuously until Back ( ) or
Stop ( ) is pressed.
Empty Open
Empty sensor
Near empty sensor
Paper level sensor
Input trays side cover sensor