How To Adjust The Print Head Position; Outline Of The Print Head Position Adjustment; Print Head Position Adjustment Procedure - Toshiba B-EX6 Series Maintenance Manual

17. HOW TO ADJUST THE PRINT HEAD POSITION

17. HOW TO ADJUST THE PRINT HEAD POSITION

17.1 OUTLINE OF THE PRINT HEAD POSITION ADJUSTMENT

Basically, the print heads of our bar code printers have been adjusted with TTEC-approved media and
ribbon before shipment so that the print head element, provided at the edge of the print head, is
positioned at the center of the arc of the platen.
Note: For details of TTEC-approved media and ribbons, please refer to the Supply Specification for the B-EX4T1 Series,
B-EX4T2/D2 Series or theB-EX6T Series.
To improve poor printing, such as blurred print, without changing user's media and ribbon, loosen the print
head fixing screws and move the print head element position backward or forward from the center of the
arc of the platen in the range of ±0.4mm to find the best position.
Generally, moving the print head element forward tends to improve blurred print, and moving it backward
tends to improve smudges.
Up to 0.4mm in + (positive)
direction (forward)

17.2 PRINT HEAD POSITION ADJUSTMENT PROCEDURE

The position adjustment range of the print head for the B-EX4/B-EX6 series is ±0.4mm (0.8mm in total).
Move the print head element forward in the case of blurred print and move it backward in the case of
smudge within the adjustment range to find the best position for clear printing.
Note: The pictures used in this section are those of the B-EX4 series. The procedures are common to the B-EX4 series
and the B-EX6 series.
Never replace the print head just after printing because the print head becomes very hot. Doing so
may cause you to get burned.
1) Turn the power off and disconnect the power cord.
2) Open the top cover.
3) Turn the head lever to the Free position to open the ribbon shaft holder plate.
4) Open the print head block.
5) Remove the print head ass'y by pulling it toward the printer front side, and disconnect the two
harnesses to detach the print head ass'y.
17.1 OUTLINE OF THE PRINT HEAD POSITION ADJUSTMENT
Up to 0.4mm in - (negative)
direction (backward)
WARNING!
17- 1
EO18-33031
(Revision Date: Jun., 2017)