Printronix L5535 - Manual (Page 80)

Chapter 4 Maintenance Tools
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A service level includes the levels that precede it. For example, at
150,000 pages, you should perform Level B
and Level A service. At
900,000 pages , your service provider should perform Level F, Level
E, and Level D service.
Note that this condition will not cause the printer to stop printing.
When one of the above messages appears, you should perform the
appropriate scheduled maintenance or call your factory-trained
service representative to perform the maintenance.
Clearing Service Level Messages
Once you have performed a level of service, you must clear the
page count for that service level. Note that when you clear a higher
service level, the levels that precede it are also cleared. For
example, clearing level C also clears levels A and B.
To clear a service level (level A, for example), select the
Maintenance menu from the control panel, select the User Maint
option, then select “Clear Level A” by pressing ENTER.