Ithaca 75 User Manual page 106

98
Series 50 Maintenance Manual
I
initialization, 80
interconnect board
removing, 38
schematics, 96
Interfaces. See Communication
interfaces
J
journal bucket assembly
disassembling, 42
removing, 40
journal take-up
spare parts, 76
L
linefeed
communication sequence, 83
spare parts, 76
linefeed motor
connection circuit, 74
removing, 50
resistance, 74
lubrication, 8
auto cutter assembly, 9
guide wheel, 9, 11
pins for shear plate, 9, 11
pressure roller bearing, 8
take-up assembly gears, 8
transport-auto cutter
assembly, 10
M
maintenance, 7, 19
adjustments, 11
cleaning, 11
lubrication, 8
tools, 7, 19
mechanical operation, 85
P
paper
ordering, 5
paper feed mechanism, 87
paper feed operation, 87
paper low detection
mechanism, 87
paper requirements, 5
paper supply
spare parts, 76
paper-low detection operation,
87
parallel interface, 2
communication sequence, 80
connector, 2
parts. See spare parts
pins for shear plate
lubrication, 9, 11
platen, adjusting, 13, 15
power cord
spare parts, 76
power requirements, 5
power supply, 84
AC switch plate, 85
power transformer, 85
power supply, 85
removing, 32
spare parts, 77
pressure roller bearing
lubrication, 8
Print quality
diagnosing, 11
printed circuit board
connections, 71
printhead
connection circuit, 72
resistance, 72
spare parts, 77
printhead drag. See adjustments
printhead drive circuit
communication sequence, 81
printhead operation, 85
R
reliability, 4
resistance
linefeed motor, 74
printhead, 72
space motor assembly, 73
ribbon cassette
ordering, 5
spare parts, 75
ribbon feed mechanism, 86
spare parts, 77
ribbon feed operation, 87
RS-232C specifications, 3