公开(公告)号：US3688107A

公开(公告)日：1972-08-29

申请号：US3688107D

申请日：1970-10-26

Applicant: XEROX CORP

Inventor： SCHNEIDER JOHN M ,  LENNON JOHN

IPC: G03G15/02 ,  G03G15/00

CPC classification number: G03G15/0266

Abstract: A corona generating apparatus is provided comprising a back-up plate and screen wires, at least one corona discharge wire positioned therebetween, adapted to be mounted in closely spaced relation with an electrostatographic plate to uniformly apply an electrostatic charge onto said plate, a corona-generating potential source connected to said corona discharge wire adapted to generate a corona discharge from said corona wire, and a second potential source adapted to be connected to said screen wires and impress a time or position varying voltage upon said screen wires permitting high initial charging current to flow thereby rapidly charging said plate while limiting the ultimate charge applied thereto.

Abstract translation: 提供了一种电晕发生装置，其包括备用板和屏蔽线，至少一个放置在其间的电晕放电线，适于与静电放置板紧密地安装，以均匀地将静电电荷施加到所述板上， 产生连接到适于从所述电晕丝产生电晕放电的所述电晕放电线的电位源，以及适于连接到所述屏蔽线并将所述屏蔽线上的变化电压施加时间或位置的第二电位源，允许高初始充电电流 流动从而对所述板进行快速充电，同时限制施加到其上的最终电荷。

公开(公告)号：CA1199522A

公开(公告)日：1986-01-21

申请号：CA407889

申请日：1982-07-23

Applicant: XEROX CORP

Inventor： CREAN PETER A ,  SCHNEIDER JOHN M ,  LIPANI ANTHONY F

IPC: B41J2/075 ,  B41J2/01 ,  B41J2/12 ,  G01D18/00

Abstract: An improved ink jet marking architecture for enhancing ink droplet placing accuracy. The improved architecture combines a bipolar scanning arrangement with a drop interlace scheme. The preferred marking apparatus comprises an array of ink jet column generators which direct ink droplets to first a charging region and then through a deflection region. The droplets are charged either negatively or positively depending an a desired droplet trajectory; thus the bipolar designation. The deflection region has an electric field strength slightly less than the breakdown field strength of air for the environment in which the apparatus is to operate. The high field strength reduces the charge which must be applied to the droplets and therefore minimizes the drop to drop coulomb interaction. The interlace strategy causes sequential drops from a given generator to be printed in non-sequential locations on the paper. This strategy spreads out the ink droplets in space and results in a reduction of both aerodynamic and coulombic interaction between droplets. By reducing these interactions and minimizing the time of flight for the drops the placement accuracy is increased. The placement accuracy is further enhanced by utilizing a charging scheme which takes into account the charge induced on other droplets in close proximity of the droplet to correct for coulomb interactions even the bipolar plus interlace strategy cannot avoid.

公开(公告)号：CA1068802A

公开(公告)日：1979-12-25

申请号：CA247760

申请日：1976-03-12

Applicant: XEROX CORP

Inventor： RANDALL JOHN M ,  BALDWIN LEROY A ,  SCHNEIDER JOHN M ,  LEE ALLEN W

IPC: G03G21/00 ,  G03G15/00 ,  G03G17/04 ,  G05D3/06

Abstract: PHOTOELECTROPHORETIC WEB MACHINE SERVO DRIVE SYSTEM A web drive system consisting of two independent speed controlled servos used to drive at least two webs is provided for use in a photoelectrophoretic web machine. The servo drive systems cooperate in the transporting of the webs to eliminate speed differential tensions between the two webs held together by friction and electrical tacking force. The first servo system may be bi-polar controlled. The second servo system may be uni-polar controlled and switched between speed and torque control modes. When the webs are held apart, the second servo system will be in speed control and whenever the webs are in contact, the second servo system is switched to the torque control mode.

公开(公告)号：DE2614130A1

公开(公告)日：1976-11-11

申请号：DE2614130

申请日：1976-04-01

Applicant: XEROX CORP

Inventor： RANDALL JOHN M ,  BALDWIN LEROY A ,  SCHNEIDER JOHN M ,  LEE ALLEN W

IPC: G03G21/00 ,  G03G15/00 ,  G03G17/04

公开(公告)号：DE2618955A1

公开(公告)日：1976-11-25

申请号：DE2618955

申请日：1976-04-29

Applicant: XEROX CORP

Inventor： BERNHARD JOHN S ,  SCHNEIDER JOHN M ,  HERMANSON HERMAN A ,  ABREU CHRISTIAN O

IPC: G03G17/04 ,  B05C5/02

Abstract: A coating device is constructed with a coating layer transfer and spreading beam (27) with an applicator plate (26) which has against the upper surface of the coating layer transfer and spreading beam (27). A device is provided for feed of a suspension type fluid onto the layer transfer and spreading beam (27). A support roller (28) is mounted nearly opposite the front edge of the spreading beam (27). Devices provide motion which moves the applicator plate (26) from side to side to feed suspension fluid into a applicator gap (41) between the spreader beam (27) and the support roller (28).