Non-impact printer apparatus and method of printing with improve

Details Non-impact printer apparatus and method of printing with improve Non-impact printer apparatus and method of printing with improve

1997-12-23

2000-05-09

Le, N.

Incremental printing of symbolic information

Light or beam marking apparatus or processes

Scan of light

347247, H04N 121

Patent

active

060610786

ABSTRACT:
A non-impact printer apparatus and method wherein enabling waveforms for enabling a plurality of recording elements for recording pixels are characterized by pulse durations that can vary by one exposure clock pulse period with some recording elements being enabled after others so that some of the benefits of center pulsewidth modulation (CPWM) are provided without the disadvantages of CPWM of pulsewidths being at least two exposure clock periods apart.

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patent: 4750010 (1988-06-01), Ayers et al.
patent: 5025322 (1991-06-01), Ng
patent: 5126759 (1992-06-01), Small et al.
patent: 5138337 (1992-08-01), Ng
patent: 5300960 (1994-04-01), Pham et al.
patent: 5317344 (1994-05-01), Beaman et al.
patent: 5586055 (1996-12-01), Ng et al.
patent: 5666150 (1997-09-01), Ajewole
patent: 5818501 (1998-10-01), Ng et al.
patent: 5859657 (1999-01-01), Donahue et al.
patent: 5914744 (1999-06-01), Ng
US Patent application 08/837,064, filed on Apr. 11, 1997 in the name of Yee S. Ng and entitled: Apparatus and Method of Printing with Non-Uniformity Correction of Exposure Parameters to Reduce Low Spatial Frequency Printed Artifacts.
US Patent application 08/581,025, filed on Dec. 28, 1995 in the name of Fleming et al and entitled: LED Printhead and Driver Chip for Use Therewith Having Boundary Scan Test Architecture.

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