Selecting The Correct Media Sensitivity Number - Intermec 3440 User Manual

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To achieve optimal print quality at speeds greater than 3.0 ips, you may
need to fine-tune the printer (or select thermal transfer media). It is
important to properly set the sensitivity number and the darkness adjust. If
necessary, further adjustment of controls such as the bias adjust screw can
improve print quality.

Selecting the Correct Media Sensitivity Number

Intermec prints a three-digit sensitivity number on each roll or box to
specify a heating schedule optimized for print speed and print history. Each
print element on the 3440 printer heats individually and various types of
media require different temperatures. Therefore, each heating schedule is
unique due to different media chemistries and manufacturing processes.
Intermec developed these heating schedules to produce the highest possible
print quality for bar codes.
Before you load media into the printer, check to see that the sensitivity
number for the media matches the number set in the printer. This improves
the print quality and sets the darkness to an appropriate level. The 3440
default setting for direct thermal media sensitivity is 420. For thermal
transfer media, the default setting is 567. For information on setting the
media sensitivity, see "Setting the Media Sensitivity Number" in Chapter 2.
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