Lexmark International, Inc.
Revision 3.1 July 13, 2004
C77x, C78x Repeating Defect Locator
Rollers
Defect Period
Component
Description
Component Planes
Effected
mm inches
Charge Roll
One
38.2
1.5
PC Drum
One 93.8
3.69
PC Cleaner
One 96.8 3.8
Developer Roll
One
46.3
1.82
TAR One
48.2
1.9
Toner Meter
One
1092.2
43.0
Cart Auger
Cartridge
One 349.9
13.8
First Transfer Roll
ITU One
53.1
2.09
Second Transfer Roll
2
nd
XferRoll
All
59.4
2.34
ITU Drive / Back-up Rolls
ITU
All
101.0
3.98
ITU Reverse Roll
ITU
All
50.5
1.99
Fuser Hot Roll
All
148.0
5.83
Fuser BUR
Fuser
All 147.0
5.79
Metering Rolls
Reference Edge
All
47.0
1.85
Color Charge Roll (CR)Short C, M, or Y Cart
C, M, & Y
101.0
3.98
NIP Shock
Defect Period
NIP Distances
mm inches
Y-C-M-K Cartridge Spacing
101.0
3.98
K to Second Transfer Roll
144.6
5.69
M to Second Transfer Roll
245.6
9.67
C to Second Transfer Roll
346.6
13.65
Y to Second Transfer Roll
447.6
17.62
Meter 1 to Second Transfer
164.8
6.49
Meter 2 to Second Transfer
126.4
4.98
Meter 3 to Second Transfer
86.4
3.40
Meter 4 to Second Transfer
51.4
2.02
2
nd
Transfer to Fuser
319.4
12.57
Fuser Nip to First Redrive
50.0
1.97
Fuser Nip to Exit Sensor
58.2
2.29
Fuser Nip to Exit Tray Nip
420.3
16.55
Reference
Charge Roll
Fuser HR / BUR
Reference
Components
Nip Shock
K to 2
nd
Xfer
M to 2
nd
Xfer
Meter 1 to 2
nd
Xfer
NOTE
: Do not use the side rulers to assess repeating defects if the left and right
calibration lines do not measure 110 mm respectively.
When printing this document, make sure ‘Fit to page’ is
not
selected.
PC
ITU Drive / Back-
up/CR Short
Cartridge Spacing
Meter 3 to 2
nd
Xfer
Meter 2 to 2
nd
Xfer
TAR
Dev Roll
1
st
Xfer Roll
2
nd
Xfer Roll
Meter 4 to 2
nd
Xfer
Fuser Nip to 1
st
Redirve
110mm
Calibration Mark
110mm
Calibration Mark
Содержание C77X
Страница 15: ...Notices and safety information xv 5061...
Страница 16: ...xvi Service Manual 5061...
Страница 22: ...xxii Service Manual 5061...
Страница 44: ...1 22 Service Manual 5061...
Страница 182: ...2 138 Service Manual 5061...
Страница 275: ...Repair information 4 43 5061 3 Unlatch the alignment stud C 4 Remove the front right light shield...
Страница 282: ...4 50 Service Manual 5061 4 Raise the ITU release lever B 5 Slide the ITU assembly from the printer...
Страница 293: ...Repair information 4 61 5061 6 Release the MPF latch F and remove the MPF...
Страница 295: ...Repair information 4 63 5061 4 Unhook the autocompensator spring C 5 Rotate the shaft up and out of the MPF assembly...
Страница 325: ...Repair information 4 93 5061 3 Remove all connectors C 4 Remove the transfer HVPS board...
Страница 338: ...4 106 Service Manual 5061...
Страница 339: ...Connector locations 5 1 5061 5 Connector locations Locations Printer boards...
Страница 340: ...5 2 Service Manual 5061 Printer motors...
Страница 341: ...Connector locations 5 3 5061 Printer sensors...
Страница 342: ...5 4 Service Manual 5061 Cartridge contact assembly pin locations cyan magenta and yellow...
Страница 343: ...Connector locations 5 5 5061 Cartridge contact assembly pin locations black...
Страница 344: ...5 6 Service Manual 5061 System board cabling reference Refer to the System board wiring diagrams for additional details...
Страница 345: ...Connector locations 5 7 5061 Connectors System board...
Страница 358: ...5 20 Service Manual 5061 Transfer high voltage power supply HVPS...
Страница 368: ...5 30 Service Manual 5061...
Страница 372: ...6 4 Service Manual 5061...
Страница 380: ...7 8 Service Manual 5061 Assembly 3 1 Fuser web oiler 1 3 2...
Страница 402: ...7 30 Service Manual 5061 Assembly 22 Electronics 3 3 3 2 1...
Страница 404: ...7 32 Service Manual 5061 Assembly 22 1 Electronics 3 5 4 8 1 9 10 2 2 6 6 6 7 6 6...
Страница 408: ...7 36 Service Manual 5061 Assembly 23 Electronics cabling interconnections 1...
Страница 410: ...7 38 Service Manual 5061 Assembly 24 Electronics cabling interconnections 2...
Страница 414: ...7 42 Service Manual 5061 Assembly 27 Output expander 3 11 7 5 9 10 6 4 8 13 18 16 15 17 12 14 19 20 21 1 22 2 23 24...
Страница 416: ...7 44 Service Manual 5061 Assembly 27 1 Output expander 3 3 11 7 13 5 5 9 2 10 6 4 12 8 1 15 14 14 14...
Страница 420: ...7 48 Service Manual 5061 Assembly 28 1 5 Bin mailbox 3 3 3 3 11 7 13 5 9 2 10 6 4 12 8 14 1 15...
Страница 422: ...7 50 Service Manual 5061 Assembly 29 500 Sheet drawer option 3 11 7 5 9 2 10 6 4 8 1...
Страница 432: ...7 60 Service Manual 5061 Assembly 31 1 High capacity input tray HCIT 1 2 6 3 7 11 8 8 4 4 5 5 3 9 10 12 4 4 4 4 13 14...
Страница 438: ...7 66 Service Manual 5061 Assembly 33 Envelope option 2 1...
Страница 442: ...7 70 Service Manual 5061 Assembly 36 Options...
Страница 444: ...7 72 Service Manual 5061...
Страница 450: ...B 2 Service Manual 5061 Print Quality Pages Page 1 total of five...
Страница 451: ...Appendix B Print quality samples B 3 5061 Print Quality Pages Page 2 total of five...
Страница 452: ...B 4 Service Manual 5061 Print Quality Pages Page 3 total of five...
Страница 453: ...Appendix B Print quality samples B 5 5061 Print Quality Pages Page 4 total of five...
Страница 457: ...Appendix B Print quality samples B 9 5061 Printhead electronic alignment test page Magenta two of two...
Страница 458: ...B 10 Service Manual 5061...
Страница 466: ...I 8 Service Manual 5061...
Страница 476: ...I 18 Service Manual 5061...
Страница 478: ......
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