32 Chapter 1 Troubleshooting control panel messages EN
49 04FF
(continued)
Putting the printer in Lossy mode might affect performance and print
quality.
49 FFFF
Issue reported by life test when replacing the fuser. This error might
also occur during the boot cycle.
l Replace the formatter.
49FFOX
This error message allows you to scroll through the printer control
panel to obtain all of the error information.
l No action required.
49 OBOA
A request is not understood. This error message is generated when
the I/O card does not support a command that was sent to it.
l Check the command being sent; the I/O card might not support a
particular feature.
49 OB22
This error message is generated when the I/O card receives a control
panel menu action that it does not recognize.
l Verify the action being sent.
50.x Fuser Error
The fusing assembly contains two heating bulbs, two thermo-switches,
and two thermistors. AC power is provided to the fusing assembly via
the DC power supply, which is controlled by the DC controller PCB.
The thermistors monitor the temperature of the fusing assembly and
provide feedback to the DC controller PCB to regulate the fusing
temperature. The two thermo-switches are wired in series with the
fusing bulbs, and “open” if the temperature exceeds 240° C (464° F).
(Continued on next page.)
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