Diagnostic aids
3-33
7541-03x
Step 4a: First transfer
When the latent images are developed on each Photoconductor, the high-voltage power supply sends voltage to
the 1st Transfer Rollers inside the transfer belt unit.
The charge difference between the developed toner image on the Photoconductor surface and the 1st Transfer
Roller causes the images to transfer to the surface of the transfer belt for each color. This takes place by a direct
surface-to-surface contact between the Photoconductors and the transfer belt.
Service tips
•
Never touch the surface of the transfer belt with your bare hand. The oil from your skin will cause a
charge differential on the surface, and toner will not stick properly. The result would be repeating
blotches of voids/light print on a page. Then the transfer belt will have to be replaced.
•
Don’t use solvents or other cleaners to clean the transfer belt surface. No matter how careful you are,
the surface will be compromised, causing scratches or a charge differential that will produce a void or
light blotch on the printed page. Then the transfer belt will need to be replaced.
About +900v
Toner
Transfer
roller
Photosensitive drum
Development roller
Transfer
belt
DS
Содержание X925
Страница 14: ...xiv Service Manual 7541 03x ...
Страница 182: ...3 50 Service Manual 7541 03x ...
Страница 228: ...4 46 Service Manual 7541 03x 5 Remove the two screws C 6 Remove the two screws D ...
Страница 229: ...Repair information 4 47 7541 03x 7 Remove the one screw E 8 Remove the four screws F on top ...
Страница 230: ...4 48 Service Manual 7541 03x 9 Remove the two screws G on top 10 Remove the two screws H ...
Страница 231: ...Repair information 4 49 7541 03x 11 Remove one screw I 12 Remove the screw J ...
Страница 234: ...4 52 Service Manual 7541 03x 4 Remove the three screws B securing the bottom of power supply to the power supply cage ...
Страница 242: ...4 60 Service Manual 7541 03x 6 Remove the screw C from the lower left corner of the scanner power supply ...
Страница 263: ...Repair information 4 81 7541 03x 8 Push the fan cage back 9 Remove the two screws E in the upper right corner E ...
Страница 285: ...Repair information 4 103 7541 03x 4 Disconnect the fan cable B from the MDCONT engine board ...
Страница 300: ...4 118 Service Manual 7541 03x 5 Remove the screw C 6 Remove the screw D ...
Страница 301: ...Repair information 4 119 7541 03x 7 Remove the screw E ...
Страница 312: ...4 130 Service Manual 7541 03x 3 Remove the two screws A securing the motor frame to the ADF main feeder unit ...
Страница 342: ...4 160 Service Manual 7541 03x 4 Pull the two tabs B back to release the sensor from the mounting bracket ...
Страница 347: ...Repair information 4 165 7541 03x 4 Remove the hinge 5 Pull the inner top cover away from the ADF main feeder ...
Страница 351: ...Repair information 4 169 7541 03x 4 Lift the cover up and slide the tab on the cover out of the ADF assembly ...
Страница 358: ...4 176 Service Manual 7541 03x 6 Lift and pull the tray away from the printer ...
Страница 368: ...4 186 Service Manual 7541 03x 5 Take the MPF shaft out 6 Remove the MPF roll ...
Страница 392: ...5 4 Service Manual 7541 03x Rip Board connectors ...
Страница 398: ...5 10 Service Manual 7541 03x Printhead controller connectors ...
Страница 407: ...Locations 5 19 7541 03x Engine board connectors ...
Страница 426: ...5 38 Service Manual 7541 03x ...
Страница 428: ...6 2 Service Manual 7541 03x ...
Страница 430: ...7 2 Service Manual 7541 03x Assembly 1 Covers ...
Страница 432: ...7 4 Service Manual 7541 03x Assembly 2 Flatbed and ADF ...
Страница 434: ...7 6 Service Manual 7541 03x Assembly 3 Flatbed ...
Страница 436: ...7 8 Service Manual 7541 03x Assembly 4 ADF 1 ...
Страница 438: ...7 10 Service Manual 7541 03x Assembly 5 ADF 2 ...
Страница 440: ...7 12 Service Manual 7541 03x Assembly 6 Duplex components 1 ...
Страница 442: ...7 14 Service Manual 7541 03x Assembly 7 Duplex components 2 ...
Страница 444: ...7 16 Service Manual 7541 03x Assembly 8 Paper exit ...
Страница 446: ...7 18 Service Manual 7541 03x Assembly 9 Base 1 ...
Страница 448: ...7 20 Service Manual 7541 03x Assembly 10 Base 2 ...
Страница 450: ...7 22 Service Manual 7541 03x Assembly 11 Base 3 ...
Страница 452: ...7 24 Service Manual 7541 03x Assembly 12 Paper feed ...
Страница 454: ...7 26 Service Manual 7541 03x Assembly 13 Electrical 1 ...
Страница 456: ...7 28 Service Manual 7541 03x Assembly 14 Electrical 2 ...
Страница 458: ...7 30 Service Manual 7541 03x Assembly 15 Upper assembly ...
Страница 460: ...7 32 Service Manual 7541 03x Assembly 16 Printhead controller board cables ...
Страница 462: ...7 34 Service Manual 7541 03x Assembly 17 Paper trays ...
Страница 464: ...7 36 Service Manual 7541 03x Assembly 18 Fuser ...
Страница 466: ...7 38 Service Manual 7541 03x Assembly 19 550 sheet option feeder covers ...
Страница 468: ...7 40 Service Manual 7541 03x Assembly 20 550 sheet option feeder base ...
Страница 470: ...7 42 Service Manual 7541 03x Assembly 21 550 sheet option feeder paper feed ...
Страница 472: ...7 44 Service Manual 7541 03x Assembly 22 550 sheet option feeder tray ...
Страница 488: ...I 14 Service Manual 7541 03x ...