Xerox 8550 Printer User Manual


 
I – 2 Phaser 8400/8500/8550/8560 Color Printer Service Manual
cleaning cycle, 2-33
cleaning page, 2-14, 2-33, 5-44
cleaning procedures, 7-2
Clear ISC Fault, 4-9
clevis pins, 8-23, 8-28, 8-30
communication ports, 2-19, 4-71
configuration card
8400 series
, 1-3
8500 series, 1-4
theory, 2-19
view, 1-8
configuration, control panel, 1-5
consumables, 9-17
diagram, 1-9
life counters, 1-9
control panel
LED indicators
, 1-5
menu map, 1-6
covers
control panel
, 8-5
exit, 8-6
front door, 8-4
left side, 8-6
right side, 8-5
D
DC power, 2-21
deskew clutch, 4-13
deskew clutch test, 4-11
deskew clutch, disconnecting, 8-40
deskew process, 2-26
deskew rollers, 2-27
diagnostic firmware, 3-33
diagnostic history, 3-2
diagnostic test functions, 3-2
diagnostics
process motor
, 3-15
tilt axis, 3-15
transfix drive, 3-15
x-axis, 3-14
y-axis encoder, 3-13
diagnostics menu, hidden service, 3-7
diagnostics, service, 4-4
DIMM, 1-8
disassembly notes, 8-3
disassembly procedures
control panel cover
, 8-5
covers, 8-5
DIMM chips, 8-51
drum heater relay, 8-49
drum maintenance assembly, 8-25
duplex roller, 8-20
exit module assembly, 8-32
front door assembly, 8-4
hard drive, 8-52
head tilt compound gear, 8-45
head tilt solenoid, 8-15
I/O board, 8-48
ink loader assembly, 8-7
media release blade and roller, 8-19
NVRAM, 8-50
pick assembly, 8-37
pick solenoid, 8-41
preheater and deskew assembly, 8-20
preheater lift solenoid, 8-42
purge pressure pump, 8-31
takeaway roller, 8-36
wave amp board, 8-47
x-axis bias spring, 8-16
x-axis motor assembly, 8-44
y-axis motor assembly, 8-8
dot size variations, 5-39
drum assembly, 2-3, 2-16
drum assembly, parts, 9-7
drum cleaning, 2-34
drum heater, 2-16
drum maintenance, 2-23
camshaft, 6-8
camshaft assembly parts, 9-7
definition, 2-3
door part number, 9-5
pivot plate, 8-25
pivot plate part, 9-7
removing pivot plate, 8-26
theory, 2-13
drum maintenance system, 2-3
drum operation
assembly and transfix system
, 2-16
drum cleaning, 2-34
drum preparation, 2-23
maintenance system, 2-13
purge system, 2-14
relation to printhead, 2-10
drum preparation, 2-23
duplex printing, 2-30
duplex roller
disassembly
, 8-21
parts, 9-9
E
electrical troubleshooting, 4-56
electronics module, 2-19
BIST errors, 3-3
DIMM replacement, 8-51
failures, 4-60
I/O board faults, 3-9
interface faults, 3-24
location, 1-8
NVRAM replacement, 8-50
overview, 2-3
parts list, 9-13
POST errors, 3-4
replacement, 8-46
theory of operation, 2-19
electronics subsystem, 2-3
eliminate light stripes, 2-33, 5-2
eliminate light stripes, service menu, 4-2
energy guidelines, 4-3