公开(公告)号：CA2439739A1

公开(公告)日：2000-03-11

申请号：CA2439739

申请日：1999-08-05

Applicant: XEROX CORP

Inventor： SMITH THOMAS W ,  MCGRANE KATHLEEN M ,  LIMBURG WILLIAM W ,  LUCA DAVID J

IPC: B41J2/01 ,  B41J2/21

公开(公告)号：CA2279695C

公开(公告)日：2004-09-21

申请号：CA2279695

申请日：1999-08-05

Applicant: XEROX CORP

Inventor： SMITH THOMAS W ,  LIMBURG WILLIAM W ,  LUCA DAVID J ,  MCGRANE KATHLEEN M

IPC: B41J2/01 ,  B41J2/14 ,  B41J2/155 ,  B41J2/175 ,  B41J2/21 ,  B41M5/00 ,  C09D11/00

Abstract: A process comprising (a) incorporating into an ink jet printing apparatus (1) a developing composition comprising a liquid vehicle and a color developer; (2) an oxidizing composition comprising a liquid vehicle and an oxidizing agent; (3) a coloring composition comprising a liquid vehicle and a dye coupler; and (4) a fixing composition comprising a liquid vehicle and a fixative; (b) causing droplets of the developing composition to be ejected in an imagewise pattern onto the substrate; (c) causing droplets of the oxidizing composition to be ejected in an imagewise pattern onto the substrate; (d) causing droplets of the coloring composition to be ejected in an imagewise pattern onto the substrate; and (e) causing droplets of the fixing composition to be ejected in an imagewise pattern onto the substrate; wherein the process results in at least some portions of the substrate bearing images comprising all four of the developing composition, the oxidizing composition, the coloring composition, and the fixing composition, said portions forming a printed image. Specific embodiments of the present invention are directed to the realization of continuous tone and gray scale in images by (1) control of the time at which color forming reactions are quenched by controlling the time period between deposition of the color forming liquids and deposition of the fixing liquid; (2) control of the extent of color forming reactions b y limitation of the quantity of one of the color forming liquids; or (3) control of pixel size by drop placement control over the overlap areas of drops of color forming liquids.

公开(公告)号：CA2472726A1

公开(公告)日：2000-03-11

申请号：CA2472726

申请日：1999-08-05

Applicant: XEROX CORP

Inventor： MCGRANE KATHLEEN M ,  SMITH THOMAS W ,  LUCA DAVID J ,  LIMBURG WILLIAM W

IPC: B41J2/04 ,  B41J2/21 ,  C09D11/02

Abstract: A process which comprises: a) incorporating into an ink jet printing apparatus: a color forming composition comprising a liquid vehicle and at least one color forming agent, and a reacting composition comprising a liquid vehicle and at least one material capable of reacting with the color forming agent to cause a desired color to form; b) causing droplets of the color forming composition to be ejected in an imagewise pattern onto the substrate; and c) causing droplets of the reacting composition to be ejected in an imagewise pattern onto the substrate; wherein the process results in at least some portions of the substrate bearing images comprising both the color forming composition and the reacting composition, said portions forming a printed image, wherein at time T1, the color forming composition has formed an image on the substrate, at time T2, the reacting composition is deposited onto a first portion P1 of the image, and at time T3, the reacting composition is deposited onto a second portion P2 of the image, wherein time period T1 to T2 is less than time period T1 to T3, thereby resulting in second portion P2 having a different color intensity from first portion P1.

公开(公告)号：CA2439739C

公开(公告)日：2005-12-27

申请号：CA2439739

申请日：1999-08-05

Applicant: XEROX CORP

Inventor： SMITH THOMAS W ,  LIMBURG WILLIAM W ,  LUCA DAVID J ,  MCGRANE KATHLEEN M

IPC: B41J2/01 ,  B41J2/21

Abstract: A process which comprises: a) incorporating into an ink jet printing apparatus: a color forming composition comprising a liquid vehicle and at least one color forming agent; and a reacting composition comprising a liquid vehicle and at least one material capable of reacting with the color forming agent to cause a desired color to form; b) causing droplets of the color forming composition to be ejected in an imagewise pattern onto the substrate; and c) causing droplets of the reacting composition to be ejected in an imagewise pattern onto the substrate; wherein the process results in at least some portions of the substrate bearing images comprising both the color forming composition and the reacting composition, the portions forming a printed image, wherein droplets of the color forming composition and droplets of the reacting composition are applied to the substrate in an imagewise pattern so that droplets of color forming composition and reacting composition overlap in a controlled pattern, thereby forming spots of varying sizes on the substrate, the spots being formed in areas where droplets of the color forming composition and reacting composition overlap.

公开(公告)号：CA2472355A1

公开(公告)日：2000-03-11

申请号：CA2472355

申请日：1999-08-05

Applicant: XEROX CORP

Inventor： LUCA DAVID J ,  SMITH THOMAS W ,  MCGRANE KATHLEEN M ,  LIMBURG WILLIAM W

IPC: B41J2/04 ,  B41J2/21 ,  C09D11/02

Abstract: A process which comprises: a) incorporating into an ink jet printing apparatus: a color forming composition comprising a liquid vehicle and at least one color forming agent, and a reacting composition comprising a liquid vehicle and at least one material capable of reacting with the color forming agent to cause a desired color to form; b) causing droplets of the color forming composition to be ejected in an imagewise pattern onto the substrate; and c) causing droplets of the reacting composition to be ejected in an imagewise pattern onto the substrate; wherein the process results in at least some portions of the substrate bearing images comprising both the color forming composition and the reacting composition, said portions forming a printed image, wherein one of i) the color forming composition and ii) the reacting composition is applied to the substrate in fixed volumes per pixel, and the other of i) and ii) is applied to the substrate in varying volume per pixel, thereby varying the intensity of color of the printed image.

公开(公告)号：DE69928877D1

公开(公告)日：2006-01-19

申请号：DE69928877

申请日：1999-09-09

Applicant: XEROX CORP

Inventor： SMITH THOMAS W ,  MCGRANE KATHLEEN M ,  LUCA DAVID J ,  LIMBURG WILLIAM W

IPC: B41J2/01 ,  B41J2/14 ,  B41J2/155 ,  B41J2/175 ,  B41J2/21 ,  B41M5/00 ,  B41M7/00 ,  C09D11/00

公开(公告)号：BR9904158A

公开(公告)日：2000-10-03

申请号：BR9904158

申请日：1999-09-09

Applicant: XEROX CORP

Inventor： SMITH THOMAS W ,  MCGRANE KATHLEEN M ,  LUCA DAVID J ,  LIMBURG WILLIAM W

IPC: B41J2/01 ,  B41J2/14 ,  B41J2/155 ,  B41J2/175 ,  B41J2/21 ,  B41M5/00 ,  C09D11/00

公开(公告)号：DE3479261D1

公开(公告)日：1989-09-07

申请号：DE3479261

申请日：1984-12-18

Applicant: XEROX CORP

Inventor： SMITH THOMAS W ,  WARD ANTHONY T ,  LUCA DAVID J ,  JOHNSON GORDON E

IPC: B41M5/26 ,  G11B7/0045 ,  G11B7/24 ,  G11B7/241 ,  G11B7/243 ,  G11B7/254 ,  G11B7/257 ,  G11B7/258 ,  G11B7/26

公开(公告)号：CA2472355C

公开(公告)日：2008-01-08

申请号：CA2472355

申请日：1999-08-05

Applicant: XEROX CORP

Inventor： SMITH THOMAS W ,  LUCA DAVID J ,  LIMBURG WILLIAM W ,  MCGRANE KATHLEEN M

IPC: B41J2/21 ,  B41J2/04 ,  C09D11/02

Abstract: A process which comprises: a) incorporating into an ink jet printing apparatus: a color forming composition comprising a liquid vehicle and at least one color forming agent, and a reacting composition comprising a liquid vehicle and at least one material capable of reacting with the color forming agent to cause a desired color to form; b) causing droplets of the color forming composition to be ejected in an imagewise pattern onto the substrate; and c) causing droplets of the reacting composition to be ejected in an imagewise pattern onto the substrate; wherein the process results in at least some portions of the substrate bearing images comprising both the color forming composition and the reacting composition, said portions forming a printed image, wherein one of i) the color forming composition and ii) the reacting composition is applied to the substrate in fixed volumes per pixel, and the other of i) and ii) is applied to the substrate in varying volume per pixel, thereby varying the intensity of color of the printed image.

公开(公告)号：CA2472726C

公开(公告)日：2007-10-16

申请号：CA2472726

申请日：1999-08-05

Applicant: XEROX CORP

Inventor： LUCA DAVID J ,  MCGRANE KATHLEEN M ,  SMITH THOMAS W ,  LIMBURG WILLIAM W

IPC: B41J2/21 ,  B41J2/04 ,  C09D11/02

Abstract: A process which comprises: a) incorporating into an ink jet printing apparatus: a color forming composition comprising a liquid vehicle and at least one color forming agent, and a reacting composition comprising a liquid vehicle and at least one material capable of reacting with the color forming agent to cause a desired color to form; b) causing droplets of the color forming composition to be ejected in an imagewise pattern onto the substrate; and c) causing droplets of the reacting composition to be ejected in an imagewise pattern onto the substrate; wherein the process results in at least some portions of the substrate bearing images comprising both the color forming composition and the reacting composition, said portions forming a printed image, wherein at time T1, the color forming composition has formed an image on the substrate, at time T2, the reacting composition is deposited onto a first portion P1 of the image, and at time T3, the reacting composition is deposited onto a second portion P2 of the image, wherein time period T1 to T2 is less than time period T1 to T3, thereby resulting in second portion P2 having a different color intensity from first portion P1.