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
Summary of Contents for OKIPAGE 12i Series
Page 6: ...1 CONFIGURATION...
Page 12: ...1 6 7 Flash memory SIMM...
Page 17: ...2 OPERATION DESCRIPTION...
Page 48: ...3 PARTS REPLACEMENT...
Page 52: ...3 4 Upper cover unit Figure 3 2 Upper cover...
Page 80: ...4 ADJUSTMENT...
Page 88: ...5 PERIODICAL MAINTENANCE...
Page 92: ...6 TROUBLESHOOTING PROCEDURES...
Page 125: ...6 33 Figure 6 5 Contact Power supply sensor board Contact plate for transfer roller...
Page 126: ...7 WIRING DIAGRAM...
Page 140: ...8 PARTS LIST...
Page 144: ...8 4 Figure 8 2 Upper cover unit 1...
Page 168: ...E 1 Appendix E Multi Purpose Feeder Maintenance...
Page 187: ...E 20 5 2 PCB Layout OLEV 11 PCB CN3 CN2 SEN2...
Page 188: ...E 21 6 PARTS LIST Figure 6 1 Multi Purpose Feeder 9 5 7 6 4 1 2 3 8...
Page 190: ...F 1 Appendix F High Capacity Second Paper Feeder Maintenance Manual...
Page 206: ...F 17 5 2 PCB Layout TQSB 2 PCB CONTROLLER MOTOR DRIVER SEN2 SEN1 OSC PU MOTOR...
Page 207: ...F 18 Figure 6 1 High Capacity Second Paper Feeder 1 2 4 3 5 6 PARTS LIST...
Page 210: ...F 21 SECTION1 CABINET CASSETTE ASSEMBLY 5 6 3 25 2 4 7 8 1...
Page 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...
Page 213: ...G 1 Appendix G Network Option Board Maintenance...