2 - 14
(2) Charging
Charging is actuated by the application of the DC voltage to the charge roller that is in contact
with the image drum surface.
The charge roller is composed of two layers, a conductive layer and a surface protective
layer, both having elasticity to secure good contact with the image drum. When the DC
voltage applied by the power supply exceeds the threshold value, charging begins. The
applied voltage is proportional to the charge potential, with offset of approximately –550V.
Charge roller
Image drum
Power
supply
charge potential
applied voltage
-1300
-550
[V]
[V]
-750
Содержание OKIPAGE 12i Series
Страница 6: ...1 CONFIGURATION...
Страница 12: ...1 6 7 Flash memory SIMM...
Страница 17: ...2 OPERATION DESCRIPTION...
Страница 28: ...2 11 PRINT N OUT Sensor OFF PRDY N DM ON N RM ON INSNS OUTSNS N Feed stop IN Sensor OFF Feed start Figure 2 5...
Страница 48: ...3 PARTS REPLACEMENT...
Страница 52: ...3 4 Upper cover unit Figure 3 2 Upper cover...
Страница 80: ...4 ADJUSTMENT...
Страница 88: ...5 PERIODICAL MAINTENANCE...
Страница 92: ...6 TROUBLESHOOTING PROCEDURES...
Страница 125: ...6 33 Figure 6 5 Contact Power supply sensor board Contact plate for transfer roller...
Страница 126: ...7 WIRING DIAGRAM...
Страница 140: ...8 PARTS LIST...
Страница 144: ...8 4 Figure 8 2 Upper cover unit 1...
Страница 145: ...8 5 Table 8 2 Upper cover unit No Name Rating Part No Use Remarks ODA Part No Cover Upper 1 1 40715101...
Страница 146: ...8 6 Figure 8 3 Base unit 16 17 29 9 18 6 13 2 20 21 27 19 22 24 1 4 19 22 25 15 26 28 3 12 20 21 8 5 7 10 11 23...
Страница 168: ...E 1 Appendix E Multi Purpose Feeder Maintenance...
Страница 187: ...E 20 5 2 PCB Layout OLEV 11 PCB CN3 CN2 SEN2...
Страница 188: ...E 21 6 PARTS LIST Figure 6 1 Multi Purpose Feeder 9 5 7 6 4 1 2 3 8...
Страница 190: ...F 1 Appendix F High Capacity Second Paper Feeder Maintenance Manual...
Страница 206: ...F 17 5 2 PCB Layout TQSB 2 PCB CONTROLLER MOTOR DRIVER SEN2 SEN1 OSC PU MOTOR...
Страница 207: ...F 18 Figure 6 1 High Capacity Second Paper Feeder 1 2 4 3 5 6 PARTS LIST...
Страница 210: ...F 21 SECTION1 CABINET CASSETTE ASSEMBLY 5 6 3 25 2 4 7 8 1...
Страница 211: ...F 22 SECTION2 MECHANICAL ASSEMBLY 21 9 11 10 12 13 23 22 14 24 15 16 17 19 18 20 A A B B...
Страница 213: ...G 1 Appendix G Network Option Board Maintenance...
Страница 226: ...Oki Data Corporation 4 11 22 Shibaura Minato ku Tokyo 108 8551 Japan Tel 03 5445 6162 FAX 03 5445 6189...