Specifications

Printhead Parallelism Adjustment
This adjustment is performed in conjunction with the Wear Plate Position,
Printhead Position, and Printhead Pressure Adjustments.
Adjusting the printhead parallelism squares the printhead in reference to the media.
Refer to Figure 5.3 for location of adjustment screws used in the following
procedures.
Printhead Parallelism Test
1. Prior to starting this test, insure the installed media is “squared” with the
Tear-Off Bar.
2. When the printer begins printing PAUSE Key Self Test labels, refer to
Getting Ready to Print and adjust the Darkness for a clear presentation of
all lines on the test label.
3. The uppermost line on the test label should be parallel to the top edge of the
label within a tolerance of 0.020".
4. If the print lines are not parallel with the top of the label, proceed to the
Printhead Parallelism Adjustment. If parallelism is within tolerance,
proceed to the Wear Plate Position Adjustment.
Printhead Parallelism Adjustment
1. Using a 7/64" Allen wrench or 7/64" Hex driver, loosen the four Allen
screws at the top rear of the Print Mechanism.
2. Adjust the parallel location of the uppermost lines by turning one of the two
Parallelism Adjustment Screws located at the back of the Print Mechanism.
NOTE: Make adjustments in small adjustments (a fraction of a turn).
3. To move the printhead forward, turn the adjustment screw clockwise as
viewed from the rear of the printer.
4. To move the printhead backward, turn the adjustment screw
counterclockwise as viewed from the rear of the printer.
5. Adjust each side as necessary to align the uppermost line of the test label in
parallel with the top edge of the label.
6. To check the results of your adjustments, run additional PAUSE Key Self
Test labels and check for proper parallelism.
7. Tighten the four top Allen screws and run more PAUSE Key Self Test labels
to verify proper positioning.
Corrective Maintenance S -Series Maintenance Manual: Volume 1
Page 5-8 38452L Rev. 3