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Service Guide OL830
Chapter 2 Principles of Operation
2.3.08 DC Fan
The fan is controlled by the FAN ON-P signal from the LSI (MSM73H019). In order for the printer
to operate, the signal FAN SENSE-N must be active.
NOTE:
The fuser and the fan are not enabled when the cover is open. If the fan fails to run, the fuser will
turn off and FAN ALARM is set. Printing is disabled.
In accordance with the TIME TO QUIET setting of the Level 2 Menu, the Fuser will maintain the
proper fusing temperature for 1 or 8 minutes after the last page has been printed. If printing is not
requested within the selected time frame, the fuser will turn OFF and the fan speed will be
reduced 50%. Selecting DISABLE allows the FUSER to maintain the proper fusing temperature
continuously.
Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business
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