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SECTION 3.
CLEANING AND MAINTENANCE
INTRODUCTION
This section provides information on user maintenance for the M-8400RV. This
section contains the following information.
• Adjusting the Print Quality
• Cleaning the Print Head, Platen and Rollers
• Replacing the Print Head
• Replacing the Fuse
PROCEDURES
ADJUSTING THE PRINT QUALITY
The M-8400RV printer is equipped with two different methods of adjusting the
quality of the print: print darkness and speed. When adjusting the printer for
optimum print quality, a bar code verifier system should be used. The human eye is a
poor judge of the relative widths of the bars in a symbol, a characteristic that is
extremely important for good bar code quality.
Darkness (Print)
This adjustment allows the user to control (within a specified range) the amount of
power that is used to activate the individual print head heat elements. It is important
to find a proper print darkness level based on your particular label and ribbon
combination. The printed images should not be too light nor should the ink from the
ribbon “bleed.” The edges of each image should be crisp and well defined.
The Print Darkness range can be set using the front panel LCD panel (see Page 2-21)
or by downloading the setting using the Print Darkness software command (see Page
4-56). There are three ranges, 1 (Low), 2 (Medium) and 3 (High). Once the range
has been selected, the PRINT Potentiometer on the front panel can be used to make
finer adjustments.
SATOM-8400RV9001041Rev.DPage3-1