2-94
Service Manual
4520-xxx
Print Quality - Background
Service Tip: Some background problems can be caused by rough
papers, non-Lexmark toner cartridges or if the media texture is set to
the rough setting.
Some slick or coated papers may also cause background. Some
problems occur with printers that run a large amount of graphics in a
humid environment. The customer may try to improve the print
quality by increasing the transfer setting.
Check the charge roll to make sure it is not at the end of life.
FRU
Action
1
Printhead
The printhead on the Lexmark T
printers cannot be cleaned. Try
another printhead if all other
attempts fail to correct a background
problem.
2
Transfer Roll Assembly
Check the high voltage contact from
the HVPS to the transfer roll. Check
the transfer arm assembly right side
bearing for any signs of
contamination, pitting or a loose
cable to the bearing. If any problems
are found, replace the defective part.
Check the transfer roll shaft for any
signs of contamination, wear or
pitting on the ends of the shaft that
go into the bearings. If a problem is
found, clean the ends of the shaft or
replace the transfer roll assembly.
3
High Voltage Contacts
Check the high voltage contacts on
the right side frame to ensure they
are clean and not bent, deformed, or
pitted. If incorrect, replace the
contact.
Содержание T52 Series
Страница 8: ...viii Service Manual 4520 xxx ...
Страница 10: ...x Service Manual 4520 xxx Class 1 Laser Statement Label ...
Страница 17: ...Notices and Safety Information xvii 4520 xxx Japanese Laser Notice Chinese Laser Notice ...
Страница 24: ...xxiv Service Manual 4520 xxx ...
Страница 162: ...3 30 Service Manual 4520 xxx ...
Страница 204: ...4 42 Service Manual 4520 xxx 6 Disconnect the interconnect card cable from the LVPS C 7 Remove the LVPS ...
Страница 224: ...5 2 Service Manual 4520 xxx ...
Страница 231: ...Connector Locations 5 9 4520 xxx Engine Board ...
Страница 232: ...5 10 Service Manual 4520 xxx Controller Board Non Network ...
Страница 233: ...Connector Locations 5 11 4520 xxx Controller Board Network ...
Страница 235: ...Connector Locations 5 13 4520 xxx ...
Страница 237: ...Connector Locations 5 15 4520 xxx 210 220 001 002 ...
Страница 239: ...Connector Locations 5 17 4520 xxx ...
Страница 242: ...5 20 Service Manual 4520 xxx ...
Страница 246: ...7 2 Service Manual 4520 xxx Assembly 1 Covers ...
Страница 248: ...7 4 Service Manual 4520 xxx Assembly 2 Frame ...
Страница 250: ...7 6 Service Manual 4520 xxx Assembly 2 Frame continued ...
Страница 252: ...7 8 Service Manual 4520 xxx Assembly 3 Printhead ...
Страница 254: ...7 10 Service Manual 4520 xxx Assembly 4 Paper Feed Autocompensator ...
Страница 256: ...7 12 Service Manual 4520 xxx Assembly 5 Paper Feed Multipurpose Unit ...
Страница 258: ...7 14 Service Manual 4520 xxx Assembly 6 Paper Feed Alignment ...
Страница 260: ...7 16 Service Manual 4520 xxx Assembly 7 Paper Feed Output ...
Страница 262: ...7 18 Service Manual 4520 xxx Assembly 8 Integrated Paper Tray 500 Sheet ...
Страница 264: ...7 20 Service Manual 4520 xxx Assembly 9 Main Drive ...
Страница 266: ...7 22 Service Manual 4520 xxx Assembly 10 Developer Drive ...
Страница 268: ...7 24 Service Manual 4520 xxx Assembly 11 Hot Roll Fuser ...
Страница 270: ...7 26 Service Manual 4520 xxx Assembly 12 Transfer ...
Страница 272: ...7 28 Service Manual 4520 xxx Assembly 13 Charging ...
Страница 274: ...7 30 Service Manual 4520 xxx Assembly 14 Electronics 1 ...
Страница 276: ...7 32 Service Manual 4520 xxx Assembly 14 Electronics I continued ...
Страница 278: ...7 34 Service Manual 4520 xxx Assembly 15 Electronics II ...
Страница 280: ...7 36 Service Manual 4520 xxx Assembly 16 Electronics III ...
Страница 282: ...7 38 Service Manual 4520 xxx Assembly 17 Electronics IV ...
Страница 284: ...7 40 Service Manual 4520 xxx Assembly 18 Electronics V ...
Страница 286: ...7 42 Service Manual 4520 xxx Assembly 19 Electronics VI ...
Страница 288: ...7 44 Service Manual 4520 xxx Assembly 20 250 Sheet Tray ...
Страница 290: ...7 46 Service Manual 4520 xxx Assembly 20 250 Sheet Tray continued ...
Страница 292: ...7 48 Service Manual 4520 xxx Assembly 21 Integrated Paper Tray 250 Sheet ...
Страница 294: ...7 50 Service Manual 4520 xxx Assembly 22 500 Sheet Tray ...
Страница 296: ...7 52 Service Manual 4520 xxx Assembly 22 500 Sheet Tray continued ...
Страница 298: ...7 54 Service Manual 4520 xxx Assembly 23 Duplex Unit ...
Страница 300: ...7 56 Service Manual 4520 xxx Assembly 23 Duplex Unit continued ...
Страница 302: ...7 58 Service Manual 4520 xxx Assembly 23 Duplex Unit continued ...
Страница 304: ...7 60 Service Manual 4520 xxx Assembly 24 Envelope Feeder ...
Страница 306: ...7 62 Service Manual 4520 xxx Assembly 25 High Capacity Feeder ...
Страница 308: ...7 64 Service Manual 4520 xxx Assembly 25 High Capacity Feeder continued ...
Страница 310: ...7 66 Service Manual 4520 xxx Assembly 25 High Capacity Feeder continued ...
Страница 312: ...7 68 Service Manual 4520 xxx Assembly 25 High Capacity Feeder continued ...
Страница 314: ...7 70 Service Manual 4520 xxx Assembly 25 High Capacity Feeder continued ...
Страница 316: ...7 72 Service Manual 4520 xxx Assembly 26 Kiosk Vertical Paper Adapter ...
Страница 318: ...7 74 Service Manual 4520 xxx Assembly 27 Kiosk Horizontal Paper Adapter ...
Страница 324: ...7 80 Service Manual 4520 xxx ...
Страница 334: ...I 10 Service Manual 4520 xxx ...