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Troubleshooting the Printing System
7-9
Engine Test
The engine test verifies that the print engine is functioning correctly.
The Formatter PCA is completely bypassed during an engine test.
This test is very useful for isolating printer problems. The engine test
prints a full page of lines across the entire printable area, and is also
useful for checking and adjusting registration. The engine test prints
from the “Cold Reset Paper Tray” and can be activated with the
Formatter PCA removed.
Note
The “Cold Reset Paper Tray” must be loaded with paper to perform an
engine test. Also, ensure that the Toner Cartridge is installed in the
printer.
Table 7-4. No DC Power
Cause Action
No AC power is supplied. Check the AC power supply. See table 7-3,
“No AC Power,” on page 7-8
The overcurrent/overvoltage detection circuit
activated.
If the problem is not rectified after the power
switch is turned off and on again, find the
cause of activation of the overcurrent/
overvoltage detection circuit in the power
supply. Wait for more than two minutes before
turning the printer back on.
Blown fuse. 1. Check the fuses (F2) on the Power Supply.
2. Replace the fuses if necessary.
Defective power supply unit Replace the power supply unit.
