Theory; Introduction - IBM 5256-1 Maintenance Information Manual

INTRODUCTION
The IBM 5256 Printer is a bidirectional (prints left and
right) printer that prints at 40, 80, or 120 cps (characters
per second).
This printer produces characters by a series of dots
within a matrix. Characters are formed by printing a
pattern of dots that corresponds to a stored image in
the printer adapter.
Printer control and logic voltages are provided within the
printer. Data and control signals are received on a cable
from a controller at a system.
The printer has the following capabilities:
• Prints characters by a series of dots within an 8-high
by 7 -wide matrix.
• Model 1 prints at 40 characters per second
(101.6 mm/second-4 inches/second).
• Model 2 prints at 80 characters per second
(203.2 mm/second-8 inches/second).
• Model 3 prints at 120 characters per second
'(304.8 mm/second-12 inches/second).
• Models 1 and 2 tab at high speed.
Theory
• The print line is up to 132 characters long.
• As many as 96 different characters can be printed
(128 for Katakana).
• Verticalspacing is 6 or 8 lines per 25.4 mm (1 inch)'
selected by a switch.
• High speed multiple line feeding.
• Horizontal spacing is 10 characters per 25.4 mm
(1 inch).
• Cut forms are advanced by a 381 mm (15-inch)
pressure feed platen.
• A forms tractor unit for printing on continuous forms.
• Printing can occur while the print head is moving
either to the .right or to the left (bidirectional printing).
• High speed tabbing and high speed multiple line feeding
can occur at the same time.
Theory,
Features
Theory 5256 MIM 4-1