Functional checks
Use the following procedures to help diagnose and solve problems that occur in the print engine.
Early boot diagnostic test
When the device is powered on, it runs several self tests on the formatter and displays the results
using the three control-panel LEDs (Ready, Data, and Attention). If the boot process stops and
nothing is displayed on the control panel, examine the control-panel LEDs for any of the following
light combinations:
Ready Data Attention
A OFF OFF OFF
B ON OFF OFF
C OFF ON OFF
D ON ON OFF
E OFF OFF ON
F ON OFF ON
G OFF ON ON
HONONON
If the boot process stops and any of these LED combinations are visible, perform the following
actions:
1. Turn the device off.
2. Reseat the formatter.
3. Ensure that the engine connectors and properly connected to the formatter.
4. Remove any memory DIMMs that are installed.
5. Verify the cable connections to the control panel.
6. Turn the device on.
If the boot process stops with the same error, replace the formatter.
Engine test
To verify that the print engine (all components except the formatter, formatter DIMMs, EIO products,
and the stacker or stapler/stacker) is functioning, print an engine test page. Use a small, non-
metallic, pointed object to depress the engine-test switch, which is located on the back of the MFP.
NOTE The standard output bin must be installed in order for the engine test page to print. If
either the stapler/stacker or the 3-bin mailbox is installed, a jam occurs.
454 Chapter 6 Problem solving ENWW
To Next Page
Loading...