Functional checks Engine test The engine test is used to verify that the print engine is functioning correctly. The cable pod is bypassed during an engine test, so the engine test is useful for isolating printer problems. The engine test prints horizontal lines in the printable area of a page. This page is also useful for checking and adjusting registration. Printing an engine test The engine test switch is below the cable pod connector assembly. To print an engine-test page, depress the engine-test button (callout 1). A single test page prints (see “Engine test troubleshooting” on page 80). 1 Figure 53. Engine-test button Q1342-90910 Functional checks 79