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11. 发明专利

FR2741167B1 未知
公开(公告)号：FR2741167B1
公开(公告)日：1998-07-10
申请号：FR9613555
申请日：1996-10-31
申请人： EASTMAN KODAK CO
发明人： TOMBS THOMAS NATHANIEL , MAY JOHN W
IPC分类号： G03G15/00 , G03G15/01 , G03G15/16
摘要： First and second toner images are formed electrophotographically on first and second photoconductive imaging members, respectively. The first toner image is transferred to the second photoconductive image member in registration with the second toner image to form a combined toner image which may be in two colors. To improve the transfer between the two photoconductive image members, at least one of the photoconductive image members is preferably compliant.

12. 发明专利

AT536568T 未知
公开(公告)号：AT536568T
公开(公告)日：2011-12-15
申请号：AT02003164
申请日：2002-02-15
申请人： EASTMAN KODAK CO
发明人： DICKHOFF ANDREAS , MAY JOHN W , QUESNEL DAVID J , RIMAI DONALD SAUL , TOMBS THOMAS N
IPC分类号： G03G15/01 , G03G15/20 , F16H13/04 , G03G15/00 , G03G15/16
摘要： A method and apparatus are disclosed for controlling image defects related to transfer of toner images in an electrostatographic machine. An engagement between an operational surface of a toner image bearing member and an operational surface of another member forming a transfer nip is adjusted using an engagement adjustment device (26,27) in order to reduce or eliminate image defects relating to an overdrive or underdrive associated with the nip. A transfer nip for transferring a toner image may include two rollers (11,21) supported by parallel shafts coaxial with each roller, the shafts separated by a controllable distance of separation and the engagement in the nip being controllably adjustable by an engagement adjustment device (26,27) to increase or decrease the distance of separation. The engagement adjustment device (26,27) provides a preselected amount of overdrive or underdrive between a toner image forming member and a receiver member to which a toner image is transferred, which preselected amount includes zero. An engagement adjustment device (26,27) of the subject invention may also be employed to control an overdrive or an underdrive in a fusing station of an electrostatographic machine.

13. 发明专利

DE50214742D1 Vorrichtung zum Management der Luftqualität in einem elektrostatografischen Drucker 未知
公开(公告)号：DE50214742D1
公开(公告)日：2010-12-16
申请号：DE50214742
申请日：2002-10-28
申请人： EASTMAN KODAK CO
发明人： BLANK PHILIPP H , HOFFMANN GARY P , LUFT CARL ALLEN , MAY JOHN W , QUESTER JOHN F , SCHOENWETTER MICHAEL KURT RAINER
IPC分类号： G03G21/20

14. 发明专利

GB2342230A Corona charger with insulator covered electrode 未知
公开(公告)号：GB2342230A
公开(公告)日：2000-04-05
申请号：GB9921559
申请日：1999-09-14
申请人： EASTMAN KODAK CO
发明人： MAY JOHN W , PERNESKY MARTIN J , WALGROVE GEORGE R
IPC分类号： G03G15/02 , H01T19/00
摘要： A corona charger 10 comprising an insulating shield 11, a grid electrode 12, one or more corona wires 13, photoconductor PC and floor electrode 16 where there is an insulating layer 14 between the floor electrode and the corona wires. The photoconductive member is moved in the direction of arrow B relative to the charger. A slot may be formed in the shield within which a wire cleaner mechanism is free to move. The insulating layer may be substantially non-absorbent and non-neutralising of ozone. The AC voltage applied to the corona wires may have a DC offset whose polarity is the same as that of the potential applied to the grid electrode. The AC voltage applied may have an approximately trapezoidal waveform, a duty cycle of 50-80% and/or a frequency of 400-1000Hz. The photoconductive member and floor electrode may be curved and/or grounded. The corona wires may be arranged along a curve. The insulating layer may be at least 0.05mm thick and have a resistivity of greater than 10 10 ohm-cm.

15. 发明专利

GB2316811A A sawtooth AC corona charger 未知
公开(公告)号：GB2316811A
公开(公告)日：1998-03-04
申请号：GB9717920
申请日：1997-08-25
申请人： EASTMAN KODAK CO
发明人： MAY JOHN W , PERNESKY MARTIN J
IPC分类号： G03G15/02 , H01T19/04
摘要： A sawtooth AC corona charger (10) for electrophotography in which an AC voltage signal is applied to sawtooth blades (12), has a duty cycle greater than 50%. Duty cycles above about 70% increase the uniformity of negative charging without significantly increasing the peak voltage to the sawtooth blades. The charger may include a grid (14). The AC voltage source (50) operates at between 60 and 6,000 Hz.

16. 发明专利

FR2740567A1 Photocopier image transfer deformable component 未知
公开(公告)号：FR2740567A1
公开(公告)日：1997-04-30
申请号：FR9613093
申请日：1996-10-22
申请人： EASTMAN KODAK CO
发明人： BUCKS RODNEY R , DWYER PATRICIA A , TOMBS THOMAS NATHANIEL , VREELAND WILLIAM B , ZEMAN ROBERT E , MAY JOHN W
IPC分类号： G03G15/16 , G03G15/14
摘要： The component (1) includes a deformable layer (35) covered by a thin coat (37) of hard material. A number of independent electrodes are positioned on the deformable layer well separated from the hard coat. The electrodes are positioned along a direction normal to the sliding direction of the component and parallel to each other. A power source (50) supplies variable voltages to the electrodes.

17. 发明专利

CA1064335A PROCESS FOR DEVELOPING ELECTROGRAPHIC IMAGES BY CAUSING ELECTRICALKDOWN IN THE DEVELOPER 未知
公开(公告)号：CA1064335A
公开(公告)日：1979-10-16
申请号：CA278042
申请日：1977-05-10
申请人： EASTMAN KODAK CO
发明人： KASPER GEORGE P , MAY JOHN W
IPC分类号： G03G15/08 , G03G9/107 , G03G13/08 , G03G15/09
摘要： A PROCESS FOR DEVELOPING ELECTROGRAPHIC IMAGES BY CAUSING ELECTRICAL BREAKDOWN IN THE DEVELOPER Development of electrostatic charge patterns (e.g., electrostatic latent images) carried on a support is accomplished in an electrographic process in which during development, an electrical field which is greater than the electrical breakdown value of the developer (i.e., greater than the maximum electrical field that the developer can support without undergoing electrical breakdown) is established across the developer in the development area. The process enables development of high quality, large solid-area images-at-high processing rates.

18. 发明专利

AT487168T 未知
公开(公告)号：AT487168T
公开(公告)日：2010-11-15
申请号：AT02024424
申请日：2002-10-28
申请人： EASTMAN KODAK CO
发明人： BLANK PHILIPP H , HOFFMANN GARY P , LUFT CARL ALLEN , MAY JOHN W , QUESTER JOHN F , SCHOENWETTER MICHAEL KURT RAINER
IPC分类号： G03G21/20

19. 发明专利

DE60141559D1 未知
公开(公告)号：DE60141559D1
公开(公告)日：2010-04-29
申请号：DE60141559
申请日：2001-09-27
申请人： EASTMAN KODAK CO
发明人： CHOWDRY ARUN , CORMIER STEVEN , MAY JOHN W , MILLS BORDEN H , PATTESON BONNIE , QUESNEL DAVID J , RIMAI DONALD SAUL , STACK KENNETH D
IPC分类号： G03G15/16 , B29D99/00 , F16C13/00
摘要： An intermediate transfer roller for use in electrostatography comprising a rigid cylindrical core member and at least one layer of an elastically deformable structure surrounding the core member, said elastically deformable structure having an effective Poisson's ration in the range of 0.2 to 0.4.

20. 发明专利

GB2342230B Improved ac corona charger with buried floor electrode 未知
公开(公告)号：GB2342230B
公开(公告)日：2003-05-28
申请号：GB9921559
申请日：1999-09-14
申请人： EASTMAN KODAK CO
发明人： MAY JOHN W , PERNESKY MARTIN J , WALGROVE GEORGE R
IPC分类号： G03G15/02 , H01T19/00
摘要： A corona charger and method and apparatus for corona charging features an insulative shield and an electrically biased grid electrode spaced from the shield. One or more substantially bare corona wires are located between the grid electrode and the shield. The corona wires are electrically biased with an AC voltage. An electrically biased highly conductive buried floor electrode forms a part of the charger and has a surface located between the one or more corona wires and the shield. An insulating layer is located between the corona wires and the surface of the buried floor electrode so that there is no exposure of the buried floor electrode in a direct line of sight from a corona wire.

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