Printronix P5000LJ Series - Manual (Page 307)

Chaff Content
307
Cut-To-Tie Ratio
A common cut-to-tie ratio for bond forms is 4:1 (that is, 80% cut to 20% ties).
This value is dictated chiefly by the application program under which the form
runs. Lower cut-to-tie ratios will yield better form handling, but stacking may
suffer due to increased stiffness of the perforations. Some level of
experimentation is required to determine the best cut-to-tie ratio. But
remember that a cut-to-tie ratio that causes a thickness buildup of greater
than 0.025 inch (0.635 mm) or that creates an evenness variation of greater
than 0.003 inch (0.0762 mm) will result in an unreliable and unpredictable
form.
Perforation Intersections
Whenever a horizontal perforation intersects with a vertical perforation, the
point of intersection must be a tie point. Cut points at such intersections make
the form unacceptable.
Chaff Content
Tractors holes should be clear of chaff. As much as possible, there should not
be loose chaff in the box in which the paper is packed.
Preferred Unacceptable
Cut Point
Tie Point Cut Point
Tie Point
Direction of
Forms
Movement