HP Designjet 700 Service Manual - Page 168

Media Sensor, Enter, Down Arrow

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29. Media Sensor The purpose of this test is to verify the operation of the media sensor with or without media. Perform the media sensor test as follows: Remove any loaded media before performing this test. 1 In the Service Tests submenu, scroll to 29 Media Sensor" and press Enter. SERVICE TESTS 29 Media sensor 2 If media is not loaded then the Media Absent / Stop..." message is displayed on the frontĆpanel. Press the Down Arrow button to stop the test. 3 Insert a sheet of A4 media into the entry platen. The Media Present / Stop..." message is displayed on the frontĆpanel. Press the Down Arrow button to stop the test. If media was present when the Media Absent / Stop..." message is displayed on the frontĆpanel, then the test has failed. If media was not present when the Media Present / Stop..." message is displayed on the frontĆpanel, then the test has failed. If the test fails, try replacing one of the following components: 1 Media sensor ' page 6Ć22. 2 Main PCA ' page 6Ć9. Only replace one component at a time and perform the "Media Sensor" test again before replacing another component. Using this procedure you will be able to determine exactly which component failed. 8-50 Troubleshooting C4705-90000

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8-50
Troubleshooting
C4705-90000
29. Media Sensor
The purpose of this test is to verify the operation of the media sensor with or without media.
Perform the media sensor test as follows:
Remove any loaded media before performing this test.
1
In the Service Tests submenu, scroll to ±29 Media Sensor" and press
Enter
.
SERVICE TESTS
29 Media sensor
2
If media is not loaded then the ±Media Absent / Stop..." message is displayed on the
frontĆpanel. Press the
Down Arrow
button to stop the test.
3
Insert a sheet of A4 media into the entry platen. The ±Media Present / Stop..." message is
displayed on the frontĆpanel. Press the
Down Arrow
button to stop the test.
If media
was present
when the ±Media Absent / Stop..." message is displayed on the
frontĆpanel, then the test has failed.
If media
was not present
when the ±Media Present / Stop..." message is displayed on
the frontĆpanel, then the test has failed.
If the test fails, try
replacing one of the following components:
1
Media sensor
'
page 6Ć22.
2
Main PCA
'
page 6Ć9.
Only replace one component at a time and perform the “Media Sensor” test again before
replacing another component. Using this procedure you will be able to determine exactly which
component failed.