Intermec EasyCoder 601 XP Service Manual page 65

8.9 Headlift Mechanism,
cont'd.
IMPORTANT!
Do not use a higher printhead pressure
than necessary, because it may increase
the wear of the printhead and thus shorten
its life.
WARNING!
It is possible to apply very high
printhead pressure by means of the
factory adjustment grub screw, which
may damage the printhead, the
pressing roller and the headlift arm.
Intermec EasyCoder 601 XP – Service Manual Ed. 2
Printhead Pressure Adjustment
The pressure of the thermal printhead against the ribbon or paper is
factory adjusted. However, the use of thicker or thinner paper than
normal could require the printhead pressure to be readjusted.
Turn the adjustment knob clockwise for increased pressure, or
counter-clockwise for less pressure. Print a few labels, preferably
test labels, and check the printout. Increased pressure generally
gives a blacker printout and vice versa. Repeat until the desired
result is obtained.
To find the basic setting, proceed as follows:
• Remove the transfer ribbon (if any).
• Load the printer with full width paper. Close the printhead and
the locking arm.
• Adjust the headlift arm to centre position.
• Turn the green adjustment knob counter-clockwise until it feels
loose (no pressure left).
• Take up the slack in the green knob until you notice an increased
resistance.
• Using a 2 mm hexagonal key, loosen the factory adjustment grub
screw (see illustration on previous page) until the printhead
starts to come up.
• Carefully tighten the grub screw until you just start noticing a
small resistance when trying to pull out the paper (see note).
• Apply some locking fluid on the grub screw.
• Lift and lower the printhead.
• Turn the knob 4 to 5 full turns clockwise. Each turn increases the
pressure by approx. 1 kp to a total of 4 – 5 kp (39.2 – 49.0 N).
• Fine-adjust by means of test labels and the trial-and-error
method (possibly after having loaded the transfer ribbon again).
Chapter 8 Print Unit
Adjustment Knob
(green)
64