Open loop print speed control

Details Open loop print speed control Open loop print speed control

2006-10-20

2010-11-16

Luu, Matthew (Department: 2861)

Incremental printing of symbolic information

Ink jet

Controller

C347S006000, C347S014000

Reexamination Certificate

active

07832819

ABSTRACT:
A method for controlling print speed of an imaging device is provided. The imaging device includes at least one reservoir for supplying liquid ink to a print head and a level sensor in the reservoir. The method comprises measuring an image density of at least a portion of a print job for the imaging device. A state of a level sensor in a print head reservoir is detected. The print speed is adjusted to a target speed in response to the level sensor indicating an open loop state. The target speed is a function of the image density. The print speed is adjusted to a default speed in response to the level sensor indicating a closed loop state.

REFERENCES:
patent: 6089686 (2000-07-01), Thornton et al.
patent: 6563600 (2003-05-01), Young
patent: 6789883 (2004-09-01), Heim et al.
patent: 6897968 (2005-05-01), Markham
patent: 6981754 (2006-01-01), Godil et al.
patent: 2005/0140705 (2005-06-01), Godil et al.
patent: 2008/0088660 (2008-04-01), Lowe et al.

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