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Light
Guide
EP
NVRAM
Fuser
Thermistor
Thermostat
1.1.7 The Printing Process
1.Charging 2. Exposing 3. Developing 4. Transfer 5. Fusing
1. Charging
The toner cartridge is charged to about 600V by the ionic charge formed by the primary charger. The charge
is formed by the ionization of a corona wire with a high voltage DC bias, and the flow of the ionic charge is
controlled by a grid to ensure an even distribution on the drum surface. The aluminum drum sleeve of the
photosensitive drum is grounded.
(1) Corona Wire: Forms ions on the drum.
(2) Grid: Distribute the ion charge evenly on the drum surface.
Confidential
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