IP Library Granted Patent US 7,261,396
Granted Patent B2
US 7,261,396 · App. 10/903,047 · Granted Aug 28, 2007

Continuous inkjet printer having adjustable drop placement

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Quick Facts
Patent No.
US 7,261,396
App. No.
10/903,047
Granted
Aug 28, 2007
Kind
B2
Abstract

A method of printing includes associating a pixel area of a recording medium with a nozzle and a time interval during which a fluid drop ejected from the nozzle can impinge the pixel area of the recording medium; dividing the time interval into a plurality of subintervals; grouping some of the plurality of subintervals into blocks; associating one of two labels with each block, the first label defining a printing drop, the second label defining non-printing drops; associating no drop forming pulse between subintervals of each block having the first label; associating a drop forming pulse between each subinterval of each block having the second label; associating a drop forming pulse between other subintervals, the drop forming pulse being between each pair of consecutive blocks; and causing drops to be ejected from the nozzle based on the associated drop forming pulses.

Claims (51)

1. A method of printing comprising:

associating a single pixel area of a recording medium with a nozzle and with a time interval during which a fluid drop ejected from the nozzle can impinge the corresponding single pixel area of the recording medium;

dividing the time interval into a plurality of subintervals;

grouping some of the plurality of subintervals into blocks;

associating one of two labels with each block, the first label defining a printing drop, the second label defining non-printing drops;

associating no drop forming pulse between subintervals of each block having the first label;

associating a drop forming pulse between each subinterval of each block having the second label;

associating a drop forming pulse between other subintervals not grouped into a block, the drop forming pulse being between each pair of consecutive blocks; and

causing drops to be ejected from the nozzle based on the associated drop forming pulses.

2. The method according to claim 1 , wherein each subinterval is of the same duration.

3. The method according to claim 1 , wherein each block includes the same number of subintervals.

4. The method according to claim 1 , wherein no subinterval is completely positioned between successive blocks.

5. The method according to claim 1 , a printed drop comprising an integral number of printing drops of equal volume, the method further comprising:

obtaining a desired fluid volume of the printed drop located within the single pixel area from print data; and

associating the first label with a number of blocks of the time interval and associating the second label with any remaining blocks of the time interval such that the volume of the printed drop substantially equals the desired fluid volume of the printed drop.

6. The method according to claim 5 , wherein the number of blocks associated with the first label comprises no blocks.

7. The method according to claim 5 , wherein the number of blocks associated with the first label comprises one block.

8. The method according to claim 7 , further comprising:

obtaining a location of the printed drop located within the single pixel area from print data; and

ordering the block associated with the first label and any remaining blocks associated with the second label based on the location of the printed drop.

9. The method according to claim 5 , wherein the number of blocks associated with the first label comprises a plurality of blocks.

10. The method according to claim 9 , wherein the plurality of blocks associated with the first label are consecutive.

11. The method according to claim 10 , further comprising:

obtaining a location of the printed drop located within the single pixel area from print data; and

ordering the plurality of blocks associated with the first label and any remaining blocks associated with the second label based on the location of the printed drop.

12. The method according to claim 9 , further comprising:

obtaining a shape of the printed drop located within the single pixel area from print data; and

ordering the plurality of blocks associated with the first label such that one block associated with the first label is spaced apart from another block associated with the first label by at least one block associated with the second label.

13. The method according to claim 12 , further comprising:

ordering the plurality of blocks associated with the first label such that one block associated with the first label is spaced apart from another block associated with the first label by additional drop forming pulses associated between other subintervals.

14. The method according to claim 9 , further comprising:

obtaining a shape of the printed drop located within the single pixel area from print data; and

ordering the plurality of blocks associated with the first label such that one block associated with the first label is spaced apart from another block associated with the first label by additional drop forming pulses associated between other subintervals.

15. A method of printing comprising:

associating a pixel area of a recording medium with a nozzle and a time interval during which a fluid drop ejected from the nozzle can impinge the pixel area of the recording medium;

dividing the time interval into a plurality of subintervals, all subintervals being equal in duration;

grouping some of the plurality of subintervals into blocks;

associating one of two labels with each block, the first label defining a printing drop, the second label defining non-printing drops;

associating no drop forming pulse between subintervals of each block having the first label;

associating a drop forming pulse between each subinterval of each block having the second label;

associating a drop forming pulse between other subintervals not grouped into a block, the drop forming pulse being between each pair of consecutive blocks; and

causing drops to be ejected from the nozzle based on the associated drop forming pulses.

16. A method of printing comprising:

associating a pixel area of a recording medium with a nozzle and a time interval during which a fluid drop ejected from the nozzle can impinge the pixel area of the recording medium;

dividing the time interval into a plurality of subintervals;

grouping some of the plurality of subintervals into blocks;

associating one of two labels with each block, the first label defining a printing drop, the second label defining non-printing drops;

associating no drop forming pulse between subintervals of each block having the first label;

associating a drop forming pulse between each subinterval of each block having the second label;

associating a drop forming pulse between other subintervals not grouped into a block, the drop forming pulse being between a pair of consecutive blocks spaced apart from each other over the time interval; and

causing drops to be ejected from the nozzle based on the associated drop forming pulses.

Assignments (9)
RELEASE OF SECURITY INTEREST Recorded Jan 24, 2020
From: BARCLAYS BANK PLC
To: EASTMAN KODAK COMPANY; FAR EAST DEVELOPMENT LTD.; FPC INC.; KODAK (NEAR EAST) INC.; KODAK AMERICAS LTD.; KODAK REALTY INC.; LASER PACIFIC MEDIA CORPORATION; QUALEX INC.; KODAK PHILIPPINES LTD.; NPEC INC.
Reel/Frame 052773/0001 →
RELEASE OF SECURITY INTEREST Recorded Jul 22, 2019
From: JP MORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT
To: EASTMAN KODAK COMPANY; FAR EAST DEVELOPMENT LTD.; FPC, INC.; KODAK (NEAR EAST), INC.; KODAK AMERICAS, LTD.; KODAK IMAGING NETWORK, INC.; KODAK PORTUGUESA LIMITED; KODAK REALTY, INC.; LASER PACIFIC MEDIA CORPORATION; PAKON, INC.; QUALEX, INC.; KODAK PHILIPPINES, LTD.; NPEC, INC.; CREO MANUFACTURING AMERICA LLC; KODAK AVIATION LEASING LLC
Reel/Frame 049814/0001 →
INTELLECTUAL PROPERTY SECURITY AGREEMENT (FIRST LIEN) Recorded Sep 5, 2013
From: EASTMAN KODAK COMPANY; FAR EAST DEVELOPMENT LTD.; FPC INC.; KODAK (NEAR EAST), INC.; KODAK IMAGING NETWORK, INC.; KODAK PORTUGUESA LIMITED; KODAK REALTY, INC.; LASER-PACIFIC MEDIA CORPORATION; PAKON, INC.; QUALEX INC.; KODAK PHILIPPINES, LTD.; NPEC INC.; CREO MANUFACTURING AMERICA LLC; KODAK AVIATION LEASING LLC; KODAK AMERICAS, LTD.
To: JPMORGAN CHASE BANK, N.A., AS ADMINISTRATIVE
Reel/Frame 031158/0001 →
RELEASE OF SECURITY INTEREST IN PATENTS Recorded Sep 5, 2013
From: CITICORP NORTH AMERICA, INC., AS SENIOR DIP AGENT; WILMINGTON TRUST, NATIONAL ASSOCIATION, AS JUNIOR DIP AGENT
To: EASTMAN KODAK COMPANY; PAKON, INC.
Reel/Frame 031157/0451 →
INTELLECTUAL PROPERTY SECURITY AGREEMENT (SECOND LIEN) Recorded Sep 5, 2013
From: EASTMAN KODAK COMPANY; FAR EAST DEVELOPMENT LTD.; FPC INC.; KODAK (NEAR EAST), INC.; KODAK AMERICAS, LTD.; KODAK IMAGING NETWORK, INC.; KODAK PORTUGUESA LIMITED; KODAK REALTY, INC.; LASER-PACIFIC MEDIA CORPORATION; PAKON, INC.; QUALEX INC.; KODAK PHILIPPINES, LTD.; NPEC INC.; CREO MANUFACTURING AMERICA LLC; KODAK AVIATION LEASING LLC
To: BARCLAYS BANK PLC, AS ADMINISTRATIVE AGENT
Reel/Frame 031159/0001 →
INTELLECTUAL PROPERTY SECURITY AGREEMENT (ABL) Recorded Sep 5, 2013
From: EASTMAN KODAK COMPANY; FAR EAST DEVELOPMENT LTD.; FPC INC.; KODAK (NEAR EAST), INC.; KODAK AMERICAS, LTD.; KODAK IMAGING NETWORK, INC.; KODAK PORTUGUESA LIMITED; KODAK REALTY, INC.; LASER-PACIFIC MEDIA CORPORATION; PAKON, INC.; QUALEX INC.; KODAK PHILIPPINES, LTD.; NPEC INC.; CREO MANUFACTURING AMERICA LLC; KODAK AVIATION LEASING LLC
To: BANK OF AMERICA N.A., AS AGENT
Reel/Frame 031162/0117 →
PATENT SECURITY AGREEMENT Recorded Apr 1, 2013
From: EASTMAN KODAK COMPANY; PAKON, INC.
To: WILMINGTON TRUST, NATIONAL ASSOCIATION, AS AGENT
Reel/Frame 030122/0235 →
SECURITY INTEREST Recorded Feb 21, 2012
From: EASTMAN KODAK COMPANY; PAKON, INC.
To: CITICORP NORTH AMERICA, INC., AS AGENT
Reel/Frame 028201/0420 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 30, 2004
From: HAWKINS, GILBERT A.; JEANMAIRE, DAVID L.
To: EASTMAN KODAK COMPANY
Reel/Frame 015641/0623 →