41057610TH Rev. 1
21 /
(4)
Exposure
The light beams from the LED head are applied to the surface of the OPC drum which is
charged negatively. The negative charge on the illuminated surface of the OPC drum is
reduced according to magnitudes of the light beams and a latent image is formed on the
surface of the OPC drum according to the resulting surface potentials.
(3)
Charging
This process applies a DC voltage to the charging roller in contact with the surface of the OPC
drum.
OPC drum
Charging roller
Power
supply
unit
Paper
OPC drum
LED head
OPC drum
Charging roller
LED head
Power
supply
unit
Summary of Contents for OKICOLOR 8
Page 2: ...OKICOLOR 8 Color LED Page Printer Maintenance Manual 1999 7 14 Rev 1...
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Page 44: ...41057610TH Rev 1 43 Figure 3 1 3 2 Parts Layout...
Page 45: ...41057610TH Rev 1 44 Figure 3 2...
Page 46: ...41057610TH Rev 1 45 Figure 3 3...
Page 47: ...41057610TH Rev 1 46 Figure 3 4...
Page 105: ...41057610TH Rev 1 104 olor check pattern...
Page 156: ...41057610TH Rev 1 155 Fig 8 2 2 1 O 3 N C 0 9 Q 6 M J 8 7 8 S H E 7 K G 4 P D R L B A F T 5...
Page 166: ...41057610TH Rev 1 165 Fig 8 6 H B E F 2 J 4 4 I 3 3 6 9 8 7 G C D A 0 5 1 5...
Page 168: ...41057610TH Rev 1 167 Fig 8 7 1 2 5 6 3 4...
Page 170: ...41057610TH Rev 1 169 Fig 8 8 7 7 5 A 5 6 6 3 3 4 4 0 9 1 8 2...
Page 172: ...41057610TH Rev 1 171 Fig 8 9 7 6 6 5 5 4 1 8 8 2 3 4 3 7...
Page 196: ...41057610TH Rev 1 195 SEN1 CN22 CN23 CN24 5 2 PCB Layout AOLT PCB...
Page 197: ...41057610TH Rev 1 196 6 PARTS LIST 4 D 9 3 B 6 C A E F 2 J I L 0 1 K G G G 5 7 H 9 8...
