How to Perform a Print/Stop Test

Print/Stop Test

This diagnostic test can be used to isolate the cause of problems, such as image formation defects and jams, within the engine. This test allows the paper to be stopped anywhere along the printer's paper path. The test can be programmed to stop printing internal pages or an external print job when the paper reaches a certain position. The test can also be programmed to stop from 0 to 60,000 mS. If the timer is set to a value that is greater than it takes to print the job, there are two ways to recover the printer.

After the print job completes, press Stop to return to the diagnostic menu before the timer times out.

After the timer times out, press Stop. The door switch must be cycled by opening and closing the front door to restart the engine and return it to a normal state. When the timer trips, the display shows the message PRINTING STOPPED PRESS Check TO CONTINUE. Pressing the will print the previously selected job. Press Stop and then the button to prevent the previous job from printing.

NOTE: Do not attempt to execute a Print/Stop test while the printer is calibrating; a power cycle will be required. If a jam message is encountered during testing, cycle the door switch.

Use the built-in print quality troubleshooting pages to help diagnose and solve print quality problems.
Press MENU to enter the MENUS.
Press (Down arrow) to highlight DIAGNOSTICS.
Press (Select) to select DIAGNOSTICS.
Press (Down arrow) to highlight PQ TROUBLESHOOTING.
Press (Select) to print the pages.

Print Stop Test values for Print Quality Troubleshooting

The following values are utilized when printing the PQ TROUBLESHOOTING pages from the DIAGNOSTICS MENU:
11250 - Cyan at bottom of ITB, starting to transfer. Near full page of Magenta on face of ITB.
15000 - Magenta at bottom of ITB, starting to transfer. Near full page of Yellow on face of ITB.
18750 - Yellow at bottom of ITB, starting to transfer.

Testing parameters

The following identifies where the test will stop when programmed with mS time periods:

Letter

1000 mS - 7000 mS Registration

7150 mS Paper just starts to pull past registration.

7500 mS Leading edge approximately 2 inches past registration.

8000 mS Leading edge approximately 4 inches past registration.

10500 mS Trailing edge cleared transfer roller, leading edge 2 inches above fuser.

13500 mS Leading edge just reaching output delivery, trailing edge 2 inches above fuser.

15000 mS Trailing edge partially hanging from output delivery.

15250 mS Paper ejected to standard output bin.

A4

1000 - 7000 mS Registration

7150 mS Paper just starts to pull past registration

7500 mS Leading edge approximately 2 inches past registration

8000 mS Leading edger approximately 4 inches

10650 mS Trailing edge cleared transfer roller, leading edge 2 1/4 inches above fuser

13600 mS Leading edge just reaching output delivery, trailing edge 2 inches above fuser

15150 mS Trailing edge partially hanging from output delivery.

15250 mS Paper ejected to standard output bin

© 2005 Hewlett-Packard