Brady 200M - Manual (Page 59)

Printhead and Platen Roller
Inconsistent print quality, such as voids in the bar code or
graphics, may indicate a dirty printhead. For optimum
performance, Brady recommends performing the cleaning
procedure on page 6-3 after every roll of ribbon (after every roll
of media, for direct thermal printing).
Note: Label Available Sensors are shown for location purposes
only. They are not standard on all printers.
Figure 6.1 Printhead Cleaning
Preventive Maintenance M-Series User ’s Guide
6-2