Printing apparatus with shifting of head or drum to improve reso

Details Printing apparatus with shifting of head or drum to improve reso Printing apparatus with shifting of head or drum to improve reso

1983-10-13

1986-07-22

Evans, A.

Recorders

Printing, dotting, or punching marker

Ink transfer support or moving means

3461531, 358302, 355 3R, G01D 1514

Patent

active

046022627

ABSTRACT:
This invention relates to a non-impact printer apparatus such as a xerographic, magnetic, or ion deposition type printer in which the image is produced with a plurality of dots, which collectively combine to form the characters of a printed text or plot. The printer includes a dot forming array for selectively generating dots to form a pattern on a rotating transfer drum or belt. The drum having an image on the surface thereof, is adapted to transfer the image onto sheet material. The drum rotates through a plurality of rotations while an image is being formed thereon prior to transferring that image to a sheet. This is accomplished by selectively activating the drum charging mechanism, as well as the drum cleaning and toning mechanisms. The dot forming array may be an array of light emitting diodes and either the array or the drum are shifted between rotations to allow the same dot forming array to transfer dots to a different position during each rotation of the drum.

REFERENCES:
patent: 3921181 (1975-11-01), Hauser
patent: 4090206 (1978-05-01), Pfeifer et al.
patent: 4366488 (1982-12-01), Westwood et al.
patent: 4424524 (1984-01-01), Daniele
patent: 4477175 (1984-10-01), Snelling
"Dual Resolution Ink Jet Drum Printer", Althauser et al., IBM Tech Disclosure, vol. 23, No. 7A, Dec. 1980, pp. 2700-2702.

Affiliated with

Also associated with

Rating

Printing apparatus with shifting of head or drum to improve reso does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Printing apparatus with shifting of head or drum to improve reso, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Printing apparatus with shifting of head or drum to improve reso will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-868354