Chapter 8 Troubleshooting - Brother HL-3450CN Service Manual

HL-3450CN SERVICE MANUAL

CHAPTER 8 TROUBLESHOOTING

This chapter contains troubleshooting information for both the Video Controller Mode and the
Engine Controller Mode.
If any problem occurs during the normal usage of the printer, which means the printer is
being used in the Video Controller Mode, clear the problem by referring to the troubleshooting
information in the following sections for the Video Controller Mode or the user's guide.
However, if a problem occurs in the video controller itself, use the Engine Controller Mode
information as it may be easier to understand the cause of the problem because the Engine
Controller mode can separate the problem in the video controller from the printing operations.
The error messages used in the Video Controller Mode basically contain the same ones that
are used in the Engine Controller Mode. All error status messages are displayed in the Video
Controller Mode other than when an error occurs in the video controller itself or in the
communication between the video controller and the engine controller.
NOTE:
The operation of the control panel and the display on the LCD vary depending on the mode
selected.
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