公开(公告)号：DE69617594D1

公开(公告)日：2002-01-17

申请号：DE69617594

申请日：1996-09-20

Applicant: XEROX CORP

Inventor： MANTELL DAVID A ,  O'NEILL JAMES F ,  TELLIER THOMAS A ,  DESHPANDE NARAYAN V ,  KNEEZEL GARY A ,  TORPEY PETER A ,  HARRINGTON STEVEN J

IPC: B41J2/01 ,  B41J2/05 ,  B41J2/13 ,  B41J2/14 ,  B41J2/205

Abstract: A liquid ink printing apparatus printing images includes a printhead (20) having a plurality of nozzles (74) wherein a single power pulse causes two or more nozzles to eject ink simultaneously. The printhead includes an ink directing element (78) having a plurality of ink conduits coupled to an array of spaced nozzles and a transducer element (77) aligned with and mated to the ink directing element. The transducers are spaced a distance apart and each transducer is substantially aligned with at least two or more of the nozzles. The printhead is stepped in a direction transverse to the array of spaced nozzles a stepping distance approximately equal to or less than the distance between transducers. The ink directing element includes a silicon wafer having etched ink conduits or channels holding ink for ejection through the nozzles connected thereto. In one embodiment, each transducer is cooperatively associated with one channel having a fork member coupled to two or more nozzles or is cooperatively associated with two or more channels wherein each channel is connected to one or more nozzles.

公开(公告)号：DE69610159T2

公开(公告)日：2001-01-11

申请号：DE69610159

申请日：1996-06-05

Applicant: XEROX CORP

Inventor： BURGER WILLIAM R ,  MOORE STEVEN R ,  KNEEZEL GARY A

IPC: B41J2/21 ,  B41J2/01 ,  B41J2/175 ,  B41J2/51 ,  B41J25/304

Abstract: An ink jet printer includes a printhead (24) having a plurality of segments (24A,24B) each having ink ejecting nozzles, each segment supplied (26A,26B) with ink of a different characteristic. Means are provided for moving the printhead in a direction transverse to the advancing movement of a recording medium. Means (31) are further provided for moving the printhead between two or more positions along the recording medium advance direction. Thus, the printhead can print a swath of ink of a first characteristic from one segment and then be moved to print a second swath from a second segment with ink of a second characteristic. In one embodiment, a printhead has two segments, one printing in black, and the other in color. A shift mechanism (31) is enabled to move the printhead between a black print position and a color print position. The invention contemplates alternate color printing swaths at alternate printing positions along the same printing swath, or a combination thereof.

公开(公告)号：BR9706850A

公开(公告)日：1999-04-06

申请号：BR9706850

申请日：1997-06-20

Applicant: XEROX CORP

Inventor： STEPHANY JOSEPH F ,  LADONNA RICHARD V ,  KNEEZEL GARY A ,  WYSOCKI JOSEPH J ,  COURTNEY THOMAS P ,  BECERRA JUAN J ,  WATROBSKI THOMAS E

IPC: B41J2/05 ,  H01C7/06

公开(公告)号：DE69503082T2

公开(公告)日：1998-11-19

申请号：DE69503082

申请日：1995-03-31

Applicant: XEROX CORP

Inventor： STEPHANY JOSEPH F ,  BECERRA JUAN J ,  JOHN PETER J ,  KNEEZEL GARY A ,  LADONNA RICHARD V ,  WATROBSKI THOMAS E ,  WYSOCKI JOSEPH J

IPC: B41J2/05

公开(公告)号：DE69311874T2

公开(公告)日：1998-01-15

申请号：DE69311874

申请日：1993-10-15

Applicant: XEROX CORP

Inventor： BURKE CATHIE J ,  HAWKINS WILLIAM G ,  O'HORO MICHAEL P ,  TELLIER THOMAS A ,  DESHPANDE NARAYAN V ,  IMS DALE R ,  KNEEZEL GARY A ,  REZANKA IVAN

IPC: B41J2/05 ,  B41J2/14 ,  B41J2/16

Abstract: A heater element for a printhead for an ink jet printing system has a pit layer (22) which protects the overglaze passivation layer (20), PSG step region (10), portions of the Ta layer (14) and dielectric isolation layer (12) and junctions or regions susceptible to the cavitational pressures. The inner walls (23) of the pit layer define the effective heater area and dopant lines (9) within the heater resistor (8) define the actual heater area. In an alternative arrangement, the dopant lines define both the actual and effective heater areas, and in yet another arrangement, one inner wall and one dopant line define the effective heater area. When a plurality of the heater elements are incorporated into a printhead having either full pit channel geometry and open pit channel geometry, the operating lifetime of the printhead is extended because the added protection of the pit layer prevents: 1) passivation damage and cavitational damages of the heater elements; and 2) degradation of heater robustness, hot spot formations and heater failures well into the 109 pulse range. The printhead can be incorporated into a drop-on-demand printing system of a carriage type or a full width type.

公开(公告)号：BR9504212A

公开(公告)日：1997-09-09

申请号：BR9504212

申请日：1995-09-28

Applicant: XEROX CORP

Inventor： KNEEZEL GARY A ,  JOHN PETER J ,  FISHER ALMON P

IPC: B41J2/05 ,  B41J2/16 ,  G01D15/16

公开(公告)号：CA2029527C

公开(公告)日：1996-01-09

申请号：CA2029527

申请日：1990-11-08

Applicant: XEROX CORP

Inventor： KNEEZEL GARY A

IPC: B41J2/05 ,  B41J2/12 ,  B41J2/14 ,  B41J2/16 ,  B41J2/365 ,  B41J2/125

Abstract: An ink jet printhead is fabricated with a resistive temperature sensor formed adjacent to the heater resistors and, in a preferred embodiment, of the same material. Temperature sensing variations between a plurality of printheads used in the same printer is achieved by trimming the thermistors to the desired resistance value while holding the printhead at the nominal set temperature. In one embodiment, the heater resistor and thermistor are formed within the same polysilicon layer, and the resistor trimmed therein. In a second embodiment, a thick or thin film resistor is formed or bonded in series with the polysilicon thermistor with the trimming being accomplished at the thick, or thin film resistor.

公开(公告)号：BR9304302A

公开(公告)日：1994-04-26

申请号：BR9304302

申请日：1993-10-20

Applicant: XEROX CORP

Inventor： BURKE CATHIE J ,  DESHPANDE NARAYAN V ,  HAWKINS WILLIAM G ,  IMS DALE R ,  O'HORO MICHAEL P ,  KNEEZEL GARY A ,  TELLIER THOMAS A ,  REZANKA IVAN

IPC: B41J2/05 ,  B41J2/14 ,  B41J2/16 ,  B41J3/18

Abstract: A heater element for a printhead for an ink jet printing system has a pit layer (22) which protects the overglaze passivation layer (20), PSG step region (10), portions of the Ta layer (14) and dielectric isolation layer (12) and junctions or regions susceptible to the cavitational pressures. The inner walls (23) of the pit layer define the effective heater area and dopant lines (9) within the heater resistor (8) define the actual heater area. In an alternative arrangement, the dopant lines define both the actual and effective heater areas, and in yet another arrangement, one inner wall and one dopant line define the effective heater area. When a plurality of the heater elements are incorporated into a printhead having either full pit channel geometry and open pit channel geometry, the operating lifetime of the printhead is extended because the added protection of the pit layer prevents: 1) passivation damage and cavitational damages of the heater elements; and 2) degradation of heater robustness, hot spot formations and heater failures well into the 109 pulse range. The printhead can be incorporated into a drop-on-demand printing system of a carriage type or a full width type.

公开(公告)号：DE69813121D1

公开(公告)日：2003-05-15

申请号：DE69813121

申请日：1998-06-12

Applicant: XEROX CORP

Inventor： MARKHAM ROGER G ,  ANDREWS JOHN R ,  KNEEZEL GARY A

IPC: B41J2/05 ,  B41J2/14 ,  B41J2/16 ,  B41J2/175

公开(公告)号：DE69610159D1

公开(公告)日：2000-10-12

申请号：DE69610159

申请日：1996-06-05

Applicant: XEROX CORP

Inventor： BURGER WILLIAM R ,  MOORE STEVEN R ,  KNEEZEL GARY A

IPC: B41J2/21 ,  B41J2/01 ,  B41J2/175 ,  B41J2/51 ,  B41J25/304

Abstract: An ink jet printer includes a printhead (24) having a plurality of segments (24A,24B) each having ink ejecting nozzles, each segment supplied (26A,26B) with ink of a different characteristic. Means are provided for moving the printhead in a direction transverse to the advancing movement of a recording medium. Means (31) are further provided for moving the printhead between two or more positions along the recording medium advance direction. Thus, the printhead can print a swath of ink of a first characteristic from one segment and then be moved to print a second swath from a second segment with ink of a second characteristic. In one embodiment, a printhead has two segments, one printing in black, and the other in color. A shift mechanism (31) is enabled to move the printhead between a black print position and a color print position. The invention contemplates alternate color printing swaths at alternate printing positions along the same printing swath, or a combination thereof.