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Troubleshooting Checks
Engine Test
The engine test print is used to verify that the print engine is functioning correctly.
The Formatter PCA is completely bypassed during an engine test, so this test is
useful for isolating printer problems. The engine test prints a full page of vertical
lines down the entire printable area and is also useful for checking and adjusting
registration.
Engine Test Button Location
The engine test print button is located on the DC Controller PCA. It is accessible
through a hole at the front of the printer. (See Figure 7-4.)
Printing an Engine Test
The engine test button is accessible without removing the covers. To print an
engine test, use a long, non-metallic object (such as a pen or pencil) to press the
engine test button. A single test page is printed. (See Figure 7-4.)
Engine Test
Figure 7-4
Troubleshooting 7-21