IBM 6400 Setup Manual page 310

True Vertical 1/10
Determines if a vertical 1/10 of an inch parameter is used as 1/10 of an inch
(Enabled) or as 7/72 of an inch (Disabled). When used as 1/10 of an inch,
rounding will occur to the nearest 1/72 of an inch. This can cause vertical
moves that have the same value to differ by
7/72 of an inch, the absolute move is slightly smaller than expected. For
example, a one inch move would be 70/72 of an inch. Vertical moves that
have the same value will be identical in length.
Disable. The default.
Enable
Absorb at ^PY
Absorb Motion. The default. Prevents paper motion following a system
terminator in a graphics (cc)PY command.
Disable. When disabled, system terminators following a graphics
command are sent to the printer and result in paper motion.
Absorb All. When absorb all is selected, the system ignores all the data
and terminator until a host generated terminator is detected.
UPC Descenders
This parameter determines if a gap is left for human readable data in
UPC/EAN bar codes, even if there is no human readable data. There will be
no change if there is human readable data.
Enable. The default. Leaves a gap even if there is no human readable
data.
Disable. Does not leave a gap if there is no human readable data.
Rotate Character Size
The Rotated Character Size option determines if rotated
(clockwise/counter–clockwise), expanded characters have a different size
than a non–rotated character with the same size parameters (Adjusted) or the
same size (Not Adjusted).
Adjusted. The default.
Not Adjusted
E–8 6400 Line Matrix Printers Setup Guide, Cabinet and Pedestal Models
1/72 of an inch. When used as