HP 2500 Service Manual - Page 207
Functional checks, Engine test
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Functional checks Note Engine test The engine test is used to verify that the print engine is functioning correctly. The formatter is bypassed during an engine test, so the engine test is useful for isolating printer problems. Because the engine test prints horizontal lines along the entire printable area of a page, it is also useful for checking and adjusting registration. Printing an engine test The engine test switch is inside tray 1, on the left side, just below the front cover. To print an engine test, open tray 1, and then press the engine-test switch. The formatter must be connected to the ECU to perform an engine test. Otherwise, the printer does not print the engine test. Figure 109. Location of the engine-test switch EN 6 Troubleshooting 205