Configurational reduction of pulse ejector crosstalk
AssigneeXerox Corporation
InventorsJoel W. Grover, Kenneth H. Fischbeck
Life of this patent
Estimating the term…
Abstract
A method of minimizing crosstalk between transducer driven pulse liquid droplet ejectors in ejector arrays. An array mounted on a scanning carriage and having nozzles inclined to the direction of relative motion between the carriage and the print-receiving member is designed such that adjacent nozzles are not fired simultaneously. Similarly, an oscillating bar pulse ejector array is designed such that adjacent nozzles are not fired simultaneously.
Claims3
A method of minimizing crosstalk between transducer driven pulsed liquid droplet ejectors in an ejector array comprising:
- (a) providing a predetermined regularly spaced set of potential pixel locations on a predetermined line of printing;
- (b) providing an array of regularly spaced pulsed liquid droplet ejectors in a row, said ejectors being spaced in said array such that no two adjacent ejectors are aligned with said pixel locations at the same time;
- and
- (c) addressing said pulsed liquid droplet ejectors only when said ejectors are aligned with a pixel location.
A method of minimizing crosstalk between transducer driven pulsed liquid droplet ejectors in an ejector array comprising:
- (a) providing a predetermined regularly spaced set of potential pixel locations in at least two parallel rows, said rows being aligned along a predetermined line of printing and spaced apart a predetermined distance;
- (b) providing an array of regularly spaced pulsed liquid droplet ejectors aligned in a row, said array being inclined at an angle .theta. with respect to the predetermined line of printing and said ejectors being spaced apart from each other a distance m, wherein m satisfies the equations:
- m sin .theta.=K pixels
- and
- m cos .theta.=1/n pixels
- and wherein K, 1 and n are integers;
- 1 and n having no common factors, and 1 and n not being equal to one;
- and
- (c) scanning said array along said predetermined line of printing while addressing said pulsed liquid droplet ejectors only when said ejectors are aligned with a potential pixel location.
A method of minimizing crosstalk between transducer driven pulsed liquid droplet ejectors in an array comprising:
- (a) providing a predetermined regularly spaced set of potential pixel locations on a predetermined line of printing;
- (b) providing an array of regularly spaced pulsed liquid droplet ejectors aligned in a row over the said pixel locations, said array having ejectors spaced 1/n pixels apart, 1 and n being integers having no common factors, and n not being equal to 1;
- and
- (c) scanning said array long said row of pixels while addressing said pulsed liquid ejectors only when said ejectors are aligned with a potential pixel location.
Dependencies are inferred from the claim text.