40718301TH Rev.6
30 /
The image roller surface is charged to about –750 V by the contact charge of the charge roller.
When the light from the LED head irradiates the image drum surface, the light energy generates
positive and negative carriers in the CGL. The positive carriers are moved to the CTL by an electrical
field acting on the image drum. Likewise, the negative carriers flow into the aluminum layer (ground).
The positive carriers moved to the CTL combine with the negative charges on the image drum
surface accumulated by the contact charge of the charge roller, lowering the potential on the image
drum surface. The resultant drop in the potential of the irradiated portion of the image drum surface
forms an electrostatic latent image on it. The irradiated portion of the image drum surface is kept
to about –100 V.
(V)
–750
–100
0
Light
from
LED
Image drum
surface potential
Charged part
Part
irradiated
by
LED
Charged
part
Содержание OKIPAGE 12i Series
Страница 1: ...40718301TH Rev 6 1 210 OKIPAGE 12i LED Page Printer Maintenance Manual Rev 6 2000 03 27 ODA OEL INT...
Страница 10: ...40718301TH Rev 6 10 7 Flash memory SIMM...
Страница 48: ...40718301TH Rev 6 48 Upper cover unit Figure 3 2 Upper cover...
Страница 118: ...40718301TH Rev 6 118 Figure 6 5 Contact Power supply sensor board Contact plate for transfer roller...
Страница 135: ...40718301TH Rev 6 135 Figure 8 2 Upper cover unit 1...
Страница 136: ...40718301TH Rev 6 136 Table 8 2 Upper cover unit No Name Rating Part No Use Remarks ODA Part No Cover Upper 1 1 40715101...
Страница 175: ...40718301TH Rev 6 175 5 2 PCB Layout OLEV 11 PCB CN3 CN2 SEN2...
Страница 176: ...40718301TH Rev 6 176 6 PARTS LIST Figure 6 1 Multi Purpose Feeder 9 5 7 6 4 1 2 3 8...
Страница 191: ...40718301TH Rev 6 191 CONTROLLER MOTOR DRIVER SEN2 SEN1 OSC PU MOTOR 5 2 PCB Layout TQSB 2 PCB...
Страница 192: ...40718301TH Rev 6 192 Figure 6 1 High Capacity Second Paper Feeder 1 2 4 3 5 6 PARTS LIST...
Страница 195: ...40718301TH Rev 6 195 SECTION1 CABINET CASSETTE ASSEMBLY 5 6 3 2 4 7 8 1 iv iv i i...
Страница 196: ...40718301TH Rev 6 196 SECTION2 MECHANICAL ASSEMBLY 21 9 11 10 12 13 23 22 14 24 iii ii 15 16 17 19 18 20 A A B B...