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41605601TH Rev.2
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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 14e
Страница 2: ...41605601TH Rev 2 1 182 OKIPAGE 14e LED Page Printer Service Manual ODA Based on 2001 03 19 Rev 2...
Страница 44: ...41605601TH Rev 2 43 Upper cover unit Figure 3 2 Upper cover...
Страница 102: ...41605601TH Rev 2 101 2 Power Supply Sensor Board CN2 CN3 CN4 CN1 SW1 F1 PS1 PS2 PS3 PS4 SW2 PS6 PS5...
Страница 112: ...41605601TH Rev 2 111 Unit Fan Circuit Diagram Illustration Resistance Red Black 30 V 1 FANALM N 3 0 V 2 M...
Страница 116: ...41605601TH Rev 2 115 Figure 8 2 Upper cover unit 1...
Страница 117: ...41605601TH Rev 2 116 Table 8 2 Upper cover unit No Name Rating Part No Use Remarks Upper cover assy 1 1 41618801...
Страница 162: ...41605601TH Rev 2 161 6 PARTS LIST Figure 6 1 Multi Purpose Feeder 9 5 7 6 4 1 2 3 8...
Страница 177: ...41605601TH Rev 2 176 Figure 6 1 High Capacity Second Paper Feeder 1 2 4 3 5 6 PARTS LIST...
Страница 180: ...41605601TH Rev 2 179 SECTION1 CABINET CASSETTE ASSEMBLY 8 1 2 3 4 iv 5 6 7 iv i i...
Страница 181: ...41605601TH Rev 2 180 SECTION2 MECHANICAL ASSEMBLY 21 9 11 12 13 23 22 14 24 iii ii 15 16 17 19 18 20 A A B B 10 26 25...