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This list includes words and abbreviations used in the
MAPs as well as those used in this manual.
A-frame: The part of the printer that supports the
platen and pressure rolls.
ALU: Arithmetic and logic unit.
amp: Amplifier.
amplifier (amp and AR): A device used to increase the
size of a signal.
AR: Amplifier.
AR-DF: Differential amplifier.
AR-MD: Amplifier for driving magnets.
ASCII: American National Standard Code for
Information Interchange.
backiash: Gear play.
belt tensioner: The part that gives tension to the drive
belt.
blows, blown (fuse): Open or opens.
buffer: A small special storage device.
C: capacitor.
carrier: The part of the printer that carries the print
head and ribbon box.
CE: Customer engineer.
chk: Check.
com: The common connection on a switch.
compression spring: A spring that is pressed into a
small space so that it can supply force.
CR: Diode.
crooked: Skewed; not straight; sloping.
Glossary,
Seq.
Affected, Loc,;
Glossary of Tenns and Abbreviations
deflector: A part that moves something away.
detenting: Locking.
dr: Drive.
EBCDIC: Extended binary coded decimal interchange
code.
EC: Engineering change.
emitter: A device that generates pulses of electricity.
EOM: End of message.
EOQ: End of queue.
E1, E2, E3: Print emitter pulses.
FB (fuse): A fuse that opens the circuit with no delay.
FF: Form-feed switch.
FL: Latch (flip latch).
frame: A 16-bit group that carries information.
FRU: Field replaceable unit.
GLP: General logic probe.
gnd: Ground.
10: Identification.
interposer: A small connector with pins on both sides
(see reference 196).
IRS: Interchange record separator.
J: Jack.
LF: Line feed switch.
line turnaround: See the System Theory Maintenance
Diagrams manual.
MAPs: Maintenance analysis procedures.
MHz: Megahertz.
Glossary of Terms and Abbreviations
5256 MIM
xiii
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