Optimizing printing speed and managing printed sheet ejection ba

Details Optimizing printing speed and managing printed sheet ejection ba Optimizing printing speed and managing printed sheet ejection ba

1995-01-03

1998-02-03

Fuller, Benjamin R.

Incremental printing of symbolic information

Ink jet

Controller

347 16, 347102, 395115, B41S 201, B41S 217

Patent

active

057149909

ABSTRACT:
The printing operation of an ink jet printer is controlled based on the density of the image to be printed. Using the density, a required drying time for each swath of printed matter is determined based on the image density. Also using the density, a maximum print frequency of firing the ink jets is determined. The density is determined by filtering stored print data by dividing the print data into blocks and determining a maximum number of ON pixels in a block. Such filtering enables clusters of ON pixels to be detected thus providing a more accurate determination of the density.

REFERENCES:
patent: 4469026 (1984-09-01), Irwin
patent: 4566014 (1986-01-01), Paranjpe et al.
patent: 4686538 (1987-08-01), Kouzato
patent: 4833626 (1989-05-01), Malcolm
patent: 5214442 (1993-05-01), Roller
patent: 5326183 (1994-07-01), Kasai et al.
patent: 5349905 (1994-09-01), Taylor et al.
patent: 5382101 (1995-01-01), Iguchi
patent: 5530466 (1996-06-01), Fukioka et al.

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