Printing press and method

Details Printing press and method Printing press and method

1989-12-29

1991-08-27

Miller, Jr., George H.

Recorders

Electric recording

Electrochemical

346157, G01D 1506, G03G 1501

Patent

active

050437496

ABSTRACT:
A press, and a process of printing a combination of fixed and variable data on such press, wherein printed images are created by direct digital driving of an imaging device at normal press speed, optionally followed by one or more processing operations in the case of business forms. The content or arrangement of the printed images can be changed without stopping the press. The press and process use one or more novel electrostatic printing engines having a direct digital imaging system which can create latent electrostatic images at normal press speeds, including the ability to accommodate substantial speed variations. Together with these printing engines, an electronic imaging system is provided in which fixed (or base) image data and variable image data are combined electronically to drive a single exposure system. Repetitive latent images are formed and developed using a liquid toner, and the resultant visible image is transferred and fixed to a variety of materials, in a continuous web. The photoreceptor surface on the drum, on which the images are formed and developed, is also cleaned and thoroughly dried each revolution. Make ready time between successive printing jobs can be significantly reduced. The press also has a novel fuser/dryer in which the developer carrier liquid is vaporized from the drum and treated through a catalytic converter to control emissions from the press. Heat from the catalytic treatment of the volatile carrier liquid is utilized as a heat source for air used in the fuser/dryer, thus providing a recuperative system.

REFERENCES:
patent: 4569584 (1986-02-01), St. John et al.
patent: 4804979 (1989-02-01), Kamas et al.
patent: 4827315 (1989-05-01), Wolfberg et al.
patent: 4912490 (1990-03-01), Negoro et al.
patent: 4926200 (1990-05-01), Ohyama et al.
patent: 4949104 (1990-08-01), Negoro et al.

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