OKIDATA OKIPAGE 20, Руководство по обслуживанию

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(2) Feeding
After the end of hopping, the pulse motor dedicated for driving the registration roller rotates to drive the
registration roller. The driven registration roller advances the paper until it comes out of the registration
roller.
When leading edge of the paper causes the paper sensor to turn on, the printing is started synchronously.
Although Gear D is always rotating due to an all-time rotation of the main motor in direction c, the regist
roller would not rotate because the clutch (regist) is turned off.
After the completion of hopping, turn on the clutch (regist) to drive the regist roller. The regist roller would
drive a paper until the paper has passed.
(3) Charging
Charging is effected by applying a DC minus voltage to the charge roller that is in contact with the image
drum surface.
(4) Exposure
Light emitted from the LED head irradiates the image drum surface with negative charges. The surface
potential of the irradiated part of the image drum drops, thereby forming an electrostatic latent image
associated with the image signal.