HP M3027 Service Manual - Page 246
Test s, Engine-test
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Test pages Printing test pages helps you determine whether or not the device engine and the formatter are functioning. NOTE Information pages also can be used to solve device issues. See Use information pages on page 45. Engine-test page To verify that the device engine is functioning, print an engine-test page. To print an engine-test page, press the engine-test-page switch (callout 1). 1 Figure 6-3 Locating the engine-test-page switch The test page should have a series of horizontal lines. The test page prints from the last tray that the device pulled from, unless the device has been turned off and then turned on again since the most recent print job. If the device has been turned off and then on again since the most recent print job, then the page will print from tray 2. The device will continuously print test pages until the test-page switch is released. The device will not print a test page if it is in Sleep mode. NOTE A damaged formatter might interfere with the engine test. If the engine test page does not print, try removing the formatter and performing the engine test again. If the engine test is then successful, the problem is in the formatter, the control panel, or the cable that connects them. 234 Chapter 6 Troubleshooting ENWW