Lanier DIGITAL COLOR PRINTER/COPIER 5722 - Manual (Page 159)

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When the CALL SERVICE symbol flashes, the
following message appears and copying is no
longer possible:
Call for service
The telephone number of your service technician
will be displayed.
Note it down, then turn the power switch off and
immediately call service for assistance.
Note: Since a heater is used to fix toner images to the copy paper, a safety circuit is incorporated
in this copier. After you turn on the power switch, if a certain temperature is not attained
within a certain period of time, the safety circuit assumes that something abnormal has
happened. This causes the operation of the copier to stop and flashes the CALL SERVICE
symbol. This can possibly occur when the temperature is low but even though the
copier is not malfunctioning. If this occurs, turn the power switch off and then on again.
Repeat this procedure twice and if the problem still persists, turn off the power switch
and call for service.
7. CALL SERVICE SYMBOL
8. PERIODIC MAINTENANCE
Note: When the following message appears on
the message display:
Time for periodic maintenance (Color)
or
Time for periodic maintenance (Black)
this indicates that assistance from a qualified
service technician is required. Call service
for assistance.