Print Gap Adjustment Wheel - Genicom 4810 User Manual

Print Gap Adjustment Wheel
1-20
User's Manual
The print gap adjustment wheel is used to adjust the distance between the
bank of print head actuators and the striker bar.
Setting the gap too tight will cause smudging on the paper and can obstruct
the movement of the shuttle mechanism. Overloading or stalling the shuttle
will cause the printer to stop and Fault:Shuttle will be displayed on the
control panel.
Setting the gap too loose may cause unacceptable print quality and excessive
noise.
Reading the Scale
The print gap adjustment wheel has two scales to aid in setting the proper
gap.
Using the White Scale
The white scale with the black markings is used to set the gap by the
number of parts in the paper being used. Set the wheel to 1 for single-part
paper, 2 for two-part paper, etc.
This is a relative setting. A change in the paper weight or the thickness of the
carbon paper (if used) in multlpart forms may require further adjustment.
Cardstock and carriers with stick-on labels require a larger print gap.
Usln& the Black Scale
The black scale with the white markings is used when direct measurements
in thousandths of an inch are made. Its main use was during the factory
setup of the printer.
After the ideal gap setting has been found for a particular type of form, note
the wheel setting using the black scale. A four-part form with a heavy first
sheet may run best with the wheel set at
26
or
27
on the black scale instead
of somewhere in the 4 range on the white scale. The smaller increments (one
click of the wheel per number) provide a more accurate setting to go back to
after reloading paper or changing the ribbon.
The most accurate, but somewhat more complicated, way to set the gap is to
load the paper and ribbon, and then use a .004-inch feeler gauge or shim
between the ribbon smudge shield and the paper. Slide the gauge from one
side of the form to the other and adjust the gap so the gauge is snug at the
tightest point.
Nov 93