Printing system exposure module optic structure and method of op

Details Printing system exposure module optic structure and method of op Printing system exposure module optic structure and method of op

1991-09-20

1992-08-25

Reinhart, Mark J.

Recorders

Printing, dotting, or punching marker

Ink transfer support or moving means

359291, 359318, H04N 121

Patent

active

051423030

ABSTRACT:
There is disclosed a deformable mirror device (DMD) exposure unit and method of operation for use in a xerographic printing system. The exposure unit is constructed with an integral unmodulated light source condensing light onto a substrate containing, in one embodiment, a multi-row set of deflectable mirrors. The deflection of each mirror is controlled by electronic circuitry established on the same monolithic integrated substrate. The substrate is arranged with mirror elements which can be adjusted easily during assembly to eliminate time consuming construction or maintenance routines. An optic structure, using integral light baffles and deflection edges, assures the proper contrast and light energy level at the image. In the case of multiple rows of pixels, the on-chip circuitry acts to reregister the spatially separated images through a suitable time delay. The formation of printed images of suitable uniformity and quality is achieved by the incorporation of an overlap factor relative to the multiple rows of pixels as defined on the integrated substrate.

REFERENCES:
patent: 3781106 (1973-12-01), Lysle
patent: 4596992 (1986-06-01), Hornbeck
patent: 4662746 (1987-05-01), Hornbeck
patent: 4710732 (1987-12-01), Hornbeck
patent: 4728185 (1988-03-01), Thomas

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