Engine test Performing an engine test The engine test can be used to verify that the print engine is functioning correctly. The formatter PCB is completely bypassed during an engine test; therefore, this test is useful for isolating problems. Because the engine test prints a full page of horizontal lines across the entire printable area, it is also useful for checking registration. To print an engine-test page, insert paper into tray 1 or tray 2, remove the EIO cover, and use a long, nonconductive object to press the engine-test button (callout 1) shown in figure 21. A single page prints. Note The duplexer test will pull paper from tray 2, but paper must be present in tray 1.
To perform a duplexer test, insert paper into tray 1 and tray 2, remove the EIO cover, and use a long, nonconductive object to press the engine-test button shown in figure 21. A duplexed page prints. WARNING! Do not use an electrically conductive object to press the engine-test button. Do not insert any object into the opening next to the power cord socket. This is not the engine-test button. 1 Figure 21. Engine-test button C7058-90936 Engine test 51