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Line density limits
Local density and page setup errors
HOST FORMS DESCRIPTION LANGUAGE 3.2 FOR IBM MVS CREATING FORMS
A.
Consider the following items when designing and planning your
form:
•
Line density limits
•
Local density limits
•
Superimposed edges when adjoining boxes
•
Text size in boxes
•
Lines with sections.
These items are especially important when designing complex
forms. You can avoid error messages and save the time it takes
to correct the problems by being aware of the system
considerations described in this appendix.
There is a limit to the number of characters and lines you can
image on a page. The basic limit is measured in units called
dispatchable items.
A dispatchable item has a maximum of 32 dots and can be the
following:
•
Full character—of point size 8, 9 or less
•
Fraction of a character—greater than point size 8 or 9
•
Line segment—equal to or smaller than 32 dots in the scan
direction.
You may encounter a page setup error while the printer is
imaging a page. This error indicates there was not enough time
for the printer to image a page. One of the following conditions
may have caused the problem:
•
Excessive amount of data to be imaged
•
Disk errors
•
Imaging problems
•
Local density problem.
If you design a form to avoid exceeding line density limitations,
you may cause page setup errors because of local density. Long
lines of small text set with close spacing cause a local density
problem. The imaging hardware accepts and dispatches
characters at two different rates. If the form structure imposes
too heavy a dispatchable load, the hardware may run out of input
before all of the data has been processed. You rarely encounter
this problem in readable forms.
System considerations
A–1
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