IBM 6400 Setup Manual page 342

pitch
pixel
PMPP
point
POR
port
portrait
print mode
proportion, character
proportional
protocol
RAM
RD
Glossary–10 6400 Line Matrix Printers Setup Guide, Cabinet and Pedestal Models
The number of text characters printed per horizontal inch.
Specified in characters per inch or cpi.
Derived from picture (PIX) ELement. The smallest displayable
picture element on a video monitor or printable unit. In printing, a
pixel is a dot.
Physical Maximum Print Position. The longest line the printer is
capable of printing. This differs from MPP in that the printer may
be capable of printing lines 132 characters wide (PMPP), but the
print job is only 80 characters wide (MPP). (See also MPP.)
A unit of length in printing and typography, used to specify type
sizes, heights of font characters, etc. There are 72 points in a
vertical inch; thus, one point equals 1/72 inch, or approximately
0.0139 inch. Some examples of point sizes are:
This manual is printed in 11 point type.
type.
Power On Reset.
A channel used for receiving data from or transmitting data to one
or more external devices.
Printed parallel to the paper motion.
Font.
See character proportion.
See font, proportional.
The rules and conventions that govern communication between a
printer and a host computer. A protocol includes codes for
printing text and graphics and codes instructing the printer to
perform special operations. (See also compatibility and
emulation.)
R
Random Access Memory. Can be read from or written to at any
time. RAM is volatile: Whatever information is in RAM is lost
when power is removed or interrupted.
Receive Data.
This is 8 point type.
This is 14 point