Printek 4000se - Manual (Page 61)

P R I N T E R C O N F I G U R A T I O N
53
Unidirectional Printing Unidirectional
No
Possible Values: No*, Yes
This item selects unidirectional printing instead of bi-directional printing.
This may be used to improve the straightness of vertical lines for critical
applications such as printing small bar codes.