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.

SATO M-8400RV

9001041 Rev. D

Page 3-1

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SATO M-8400RV manual Procedures, Darkness Print