IBM 6400 series Maintenance Manual page 425

Service checks
customer's power source, 354
power on/off verification, 355
print interlock, 355
print mechanism, 351
printer power cable, 354
safety ground path, 352
top cover and doors, 351
Set shuttle speed, 189
Set Top Of Form key
cabinet model, 20
pedestal model, 22
Shaft
splined, replacement, 246
splined, skew adjustment, 174
support, replacement, 248
Shuttle
cover assembly, replacement, 209
does not move, 126
frame assembly, replacement, 249
speed setting, 189
Shuttle is noisy, 127
Signal mnemonics, 357
SIMMs, location and replacement, 224
Smeared printing, 114
Soft reset, 150
Software, loading into flash memory, 181
SOFTWARE ERROR, 113
Spacing, vertical, problems, 132
Specifications
dimensions, printer, 335
duty cycle, 341
electrical, 336
environmental, 335
interfaces, 341
paper, 334
printing rates, 342
ribbon, 333
Speed
printing, 342
Index
shuttle, set, 189
Splined shaft
replacement, 246
skew adjustment, 174
Spring
extension, replacement, 252
gas, assembly, replacement, 251
Squares, black, on operator panel, 114
Stacker, power, 377
chatters at upper or lower limit, 128
does not stack properly, 128
elevator does not move, 128
elevator moves by itself, 129
installation, 383
limit switch check, 129
motor check, 130
not operating, 123
printer does not detect, 123
removal, 378
replacing
constant force spring, 393
timing belts, 396
Start key
cabinet model, 20
pedestal model, 22
Start of call, 56
Start up sequence, 151
Stop key
cabinet model, 20
pedestal model, 22
Supplies, tools, and test equipment, 26
Support shaft, replacement, 248
Switch
cover open switch assembly, replacement,
253
paper detector switch assembly,
replacement, 254
platen interlock switch assembly,
replacement, 256
power, replacement, 204
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