Toner image transfer type electrographic copying machine

Details Toner image transfer type electrographic copying machine Toner image transfer type electrographic copying machine

1981-05-11

1983-08-02

Moses, R. L.

Photocopying

Projection printing and copying cameras

Combined with or convertible to a contact printer

355 3BE, 355 16, G03G 1500

Patent

active

043962750

ABSTRACT:
A toner image transfer type electrographic copying apparatus is disclosed which comprises an endless image carrier, at least two support rollers around which the endless image carrier is wrapped, a drive motor and clutch for rotating one of the support rollers, a control device for controlling the operation of the clutch, a lamp and lens mechanism for forming an electrostatic latent image on the surface of a unit length portion of the endless image carrier, a device for developing the electrostatic latent image on the surface of the endless image carrier so as to change it into a toner image, a device for transferring the toner image onto the surface of a transfer paper sheet, and a device for removing residual toner on the image carrier. The toner-removing device is disposed adjacent to the image-developing device. A length m times (m is an integral number equal to at least 3) as long as a unit length is fixed as the overall circumferential length of the image carrier, and the image carrier is rotated by the drive motor by a unit drive distance at least n times (n is smaller than m and is an integral number greater than 1 and is a number which has no common factor with m other than 1) as long as the unit length for each copying operation.

REFERENCES:
patent: 3976375 (1976-08-01), Kurita et al.
patent: 4025180 (1977-05-01), Kurita et al.

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