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US 2014/0210884 A1Published application
Ink jetting
AssigneeFUJIFILM Dimatix, Inc.
InventorsTimothy Rosario, Jaan T. Laaspere, George Baker
Life of this patent
Estimating the term…
Abstract
Among other things, an inkjet print head module includes inkjets from which ink drops are to be jetted during a series of jetting cycles. There is circuitry on the inkjet print head module to (a) form, from trimming information or other information that characterizes jetting waveforms to be applied to respective inkjets in respective jetting cycles, corresponding jetting waveforms and (b) apply the formed jetting waveforms to the respective inkjets in the respective jetting cycles.
Claims52
An apparatus comprising:
- an inkjet print head module including inkjets from which ink drops are to be jetted during a series of jetting cycles, and circuitry on the inkjet print head module to (a) form, based on trimming information or other information that characterizes jetting waveforms to be applied to respective inkjets in respective jetting cycles, corresponding jetting waveforms and (b) apply the formed jetting waveforms to the respective inkjets in the respective jetting cycles.
An apparatus comprising:
- an inkjet print head module comprising
- (a) inkjets from which ink drops are to be jetted during a series of jetting cycles,
- (b) storage to hold information about (i) a common basic jetting waveform to be used in generating jetting waveforms to be applied to respective inkjets in respective jetting cycles, (ii) trimming amounts to be applied to the common basic jetting waveform in generating the jetting waveforms, the trimming amounts being associated with trimming values, (iii) trimming values, and (iv) jetting values each indicating whether to jet an ink drop from a respective one of the inkjets in a respective one of the jetting cycles, and
- (c) a coupler to carry the information to be held on the storage from an external source onto the inkjet print head module.
1 more element
A method comprising
- forming jetting waveform trimming information corresponding to respective inkjets of an inkjet print head module for respective jetting cycles,
- sending the jetting waveform trimming information from an external location to storage located on the inkjet print head module, and
- sending jetting cycle trigger signals from an external location to the inkjet print head module to trigger successive jetting cycles in each of which jetting waveforms based on the jetting waveform trimming information are applied to the respective inkjets.
A method comprising
- enabling different jetting waveforms to be applied to different inkjets of an inkjet head module to improve the uniformity of jetting among the inkjets, and
- setting manufacturing tolerances for at least one component part of the inkjet head module based on the improved uniformity.
Dependencies are inferred from the claim text.