NCR 7193, Service Manual

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Index 7193 Service Guide
August 1998 74
Disassembly, 39
disassembling PC board assembly, 52
disassembling print mechanism, 46
disconnecting cables, 45
disconnecting harnesses, 45
removing ESD/EMC shield, 52
removing knife assembly, 46
removing knife motor, 49
removing L cover, 41
removing paper feed motor, 51
removing paper guide, 40
removing PC board assembly, 44
removing platen, 40
removing print mechanism, 42
removing printhead, 48
removing receipt cover, 40
removing switches, 50
tools, 39
Duty cycle
limitations, 58
—E—
Environmentatl conditions, 55
Errors. See troubleshooting
ESD/EMC shield
removing, 52
replacing, 52
—F—
Features, 2, 55
FET’s, 34
Field effect transistors. See FET’s
—H—
Hardware kit, 62
Harnesses
disconnecting, 45
reconnecting, 53
—I—
Installation
choosing location, 6
connecting cables, 11, 12
mounting power supply on wall, 19
mounting printer on wall, 17
removing packing material, 5
setting switches, 6
testing printer, 15
turning on printer, 14
—K—
Kits
cabinet base kit, 61
cover open switch kit, 61
hardware kit, 62
knife blade kit, 61
knife motor kit, 61
knife switch kit, 62
paper feed motor kit, 61
paper out switch kit, 61
power supply, 60
printhead kit, 62
small parts kit, 62
wall-mount, power supply, 19
wall-mount, printer, 17
Knife
does not operate, 36
setting partial cut distance, 26
Knife assembly
removing, 46
replacing, 47
Knife blade kit, 61
Knife motor
removing, 49
replacing, 50
Knife motor kit, 61
Knife switch kit, 62
—L—
L cover
removing, 41
replacing, 54
Label
wall-mount kit, 17
LCSIO (RS-485) interface
address bits, 10
communication connector and pin assignments, 65
LED
does not come on, 37
Level 0 diagnostics, 21
Level 1 diagnostics, 22
ignoring/using carriage return, 28
running data scope mode, 28
setting 7150 response mode, 27
setting data buffer option, 23
setting data error option, 23
setting default lines per inch, 25
setting partial cut distance, 26
setting printhead resistance, 24
testing receipt printing, 30