UBI EasyCoder 601 XP – Service Manual Ed. 1
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Chapter 8 Print Unit
8.9 Headlift Mechanism,
cont'd.
Printhead Pressure Alignment Adjust
The printer is factory-adjusted for full size paper width. When using
paper less than full width, it is recommended to adjust the printhead
lift arm so it becomes centred on the paper. Thereby, an even
pressure across the paper is obtained.
A poorly adjusted lift arm may be detected by a weaker printout on
the inner part of a less than full width paper. Similarly, when
reverting to a wider paper, the arm should be adjusted, or the
printout on the outer part of the paper could be weak.
To adjust the printhead lift arm, proceed as follows:
• Lift the printhead by turning the printhead lift knob to “Open”
position.
• Remove the ribbon, if any.
• Loosen the knob that holds the lift arm. Move the arm inwards or
outwards until the arrow on the tip of the arm becomes centre-
aligned with the paper web.
If the arm is hard to move, pull the printhead bracket free from the
magnet in the lift arm. Pull down the arm to a position between
open and closed. Push at the inner part of the arm, where the
locking knob is situated.
• After having centred the arm, lock it by tightening the knob.
• Reload the ribbon, if any.
Centre of Paper Web
Tip of Headlift Arm
Knob
