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Page: 139
Service Guide OJ2010
Chapter 4 Failure and Repair Analysis
4.8.02 Test Page
This procedure prints the test page.
The test page contains the code level and code level date information.
The test page is used to clean (purge) the nozzles.
It is also used to verify that all print nozzles are working. Any breaks in the diagonal line indicates that one
or more nozzles are malfunctioning.
The test page also shows the vertical and horizontal alignment test patterns. These patterns are used to
align the black printhead to the color printhead.
The printhead alignment must be performed whenever a print cartridge is replaced/installed.
Refer to Section 3.3 of this Service Handbook for information on the printhead alignment
procedure
.
Procedure
To print a test page, follow this procedure.
1. Read through the entire procedure before performing it.
2. Be sure that the print cartridges are in good condition.
3. Install a black print cartridge in the left side of the printhead cradle.
4. Install a color print cartridge in the right side of the printhead cradle.
5. Press the
ON/OFF
switch five times. Pause for one second between each press.
6. The test will print.
Pages will continue to print until the unit is powered OFF.
7. To end the test, power
OFF
the unit or unplug the printer
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