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4.0.0 Belt Printer
4.1.0 THEORY
The standard printer uses an endless steel belt
with four identical 48-character type sets (stan-
dard). The type belt is interchangeable by the
customer. However, changing the type belt
requires a corresponding change in the print
image in main storage to match the character
set on the belt.
The pinfeed carriage allows the use of contin-
uous forms of varying widths and up to six parts
thick.
Note: To interchange forms between the serial
printer and the belt printer, the maximum dis-
tance from the center line of the left margin
holes to the center line of print position 1 must
be 0.5 inch (12.7 mm) for correct print alignment.
See Form Design Reference Guide for Printers,
GA24-3488.
The printer also has the following:
132 print positions
Interchangeable 48-character, 64-character, or
96-character set type belts
50,100,155, or 285 lines per minute nominal
printing speed
Six lines per vertical inch
Single and multiple line spacing
Vertical forms control (VFC)
Forms jam detect
The 50-, 100-, and 155-lines-per-minute printers
share common theory and maintenance informa-
tion. However, due to extensive electrical and
mechanical differences in the 285-lines-per-minute
printer, a separate subsection has been written
for its theory and maintenance. This subsection
begins at paragraph 4.5.1.
Belt Printer
4-1
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