d-Color MF4003/MF3303
P THEORY OF OPERATION > 1. d-Color MF4003/MF3303
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[1] Color motor (M2) [2] Main motor (M1)
[3] Cleaning roller/K [4] Charging roller/K
[5] Cleaning roller/C [6] Charging roller/C
[7] Cleaning roller/M [8] Charging roller/M
[9] Cleaning roller/Y [10] Charging roller/Y
(3)Operation
(a)Charge mechanism
[1] Charging roller [2] Cleaning roller
Charge roller
• Charge rollers are used for charging the photoconductor.
• As compared with the charge wire, the charge roller applies a lower voltage and thus produces a smaller amount of ozone. The main
body is not therefore mounted with any ozone filter.
• The charge roller is driven to follow the movement of the photoconductor.
Cleaning roller
• The cleaning roller removes toner stick to the charge roller.
• The cleaning roller is driven to follow the movement of the charge roller.
(b)Charge corona control
• High voltage DC negative charge is applied to the charge roller. Charge discharged the surface of the photoconductor to become
uniformly charged via the charge roller.
• The charge corona voltage supplied from the high voltage unit is applied to the terminal of the charge roller of each color.
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