中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

18 records (took 0.03 seconds)

    11.
    发明专利
    未知

    公开(公告)号：DE69909414D1

    公开(公告)日：2003-08-14

    申请号：DE69909414

    申请日：1999-12-17

    Applicant: XEROX CORP

    Inventor： MOORE KENNETH P ,  HAAG WILLIAM R ,  LINDER MICHAEL J ,  WILLIAMS STEPHEN B

    IPC: B65H1/18

    Abstract: A feed apparatus which combines a slider crank feed head (300) drive system (310) and cam (348) actuated stack height sensing system (352) to form a new combined shuttle feeder. The new feed head drive includes the replacement of a solenoid drive with a more reliable stepper driven twin slider crank drive. Included in the slider crank drive for the feed head (300) is an integral cam (348) as part of the crank arm mounted to the motor shaft (310). This cam (348) drives a stack height sensor to drop and lift the stack height sensing arm (352) to sense stack (53) height after the sheet trail edge has passed the point of arm contact with the stack (53). The cam (348) also provides a "service mode" position for the stack height arm (352) which lifts it out of the way of the paper supply when it is opening. The cam (348) dwells in a neutral home position during the rest of the drive out and return motion of the feed head (300).

    SHEET FEEDER
    12.
    发明专利
    SHEET FEEDER 失效

    公开(公告)号：JP2001151361A

    公开(公告)日：2001-06-05

    申请号：JP2000309423

    申请日：2000-10-10

    Applicant: XEROX CORP

    Inventor： LINDER MICHAEL J ,  MOORE KENNETH P ,  DECHAU RICHARD L ,  HAAG WILLIAM R

    IPC: B65H1/18 ,  B65H3/08 ,  B65H3/12 ,  B65H3/48 ,  B65H7/16

    Abstract: PROBLEM TO BE SOLVED: To provide a sheet feeder capable of adjusting a sheet obtaining period. SOLUTION: An image forming device 100 includes an image forming engine 110 for fixing an image to a sheet of a recording medium. A user of the image forming device 100 inputs a printing request including total number of printed sheets with a user interface 120. The sheet feeder 200 separates the sheet from the top of a stack, obtains this separated sheet, and transfers the separated sheet to an image forming engine 110. Based on continuous average and standard deviation of a predetermined number of already well fed sheets, a control circuit 300 controls the sheet obtaining period. The control circuit also adjusts a position of the stack and controls a take away carrier roll that receives the obtained sheets and transfers the sheets to the image forming engine 110.

    PAPER FEEDER
    14.
    发明专利
    PAPER FEEDER 失效

    公开(公告)号：JP2000185829A

    公开(公告)日：2000-07-04

    申请号：JP35671999

    申请日：1999-12-15

    Applicant: XEROX CORP

    Inventor： MOORE KENNETH P ,  HAAG WILLIAM R ,  LINDER MICHAEL J ,  WILLIAMS STEPHEN B

    IPC: B65H1/18

    Abstract: PROBLEM TO BE SOLVED: To provide a paper feeder which can surely supply paper in accordance with characteristics of a sheet, that is, a weight, a size, a curling condition and a surface-treated condition thereof. SOLUTION: A paper supply head 300 in a paper feeder 200 has a vacuum source which can capture sheets in the upper part of a stack 53, and release them from the stack. The supply head 300 is provided with a stack height sensor 350 arranged so as to make contact with the top surface of the stack with a predetermined timing synchronized with reciprocation of the paper feed head. With this stack height sensor 350, a space between the function surface 302 of the paper feed head and the top surface of the stack is appropriately held.

    SHEET FEEDER
    16.
    发明专利
    SHEET FEEDER 失效

    公开(公告)号：JP2000198555A

    公开(公告)日：2000-07-18

    申请号：JP35672499

    申请日：1999-12-15

    Applicant: XEROX CORP

    Inventor： DECHAU RICHARD L ,  HAAG WILLIAM R ,  LINDER MICHAEL J ,  MOORE KENNETH P

    IPC: B65H1/16 ,  B65H1/18 ,  B65H3/08

    Abstract: PROBLEM TO BE SOLVED: To reduce dispersion in sheet capturing time and double sheet feeding among others. SOLUTION: A feeder 200 uses positive and negative air pressures to capture and separate one sheet from a sheet stack 53. The air pressures are set depending on the characteristics of paper or media. The characteristics of paper or the like include the sheet ream weight, size, coating construction, and curl direction and size.

    METHOD FOR CONTROLLING ANGLE AND HEIGHT OF SHEET
    17.
    发明专利
    METHOD FOR CONTROLLING ANGLE AND HEIGHT OF SHEET 失效

    公开(公告)号：JP2000191151A

    公开(公告)日：2000-07-11

    申请号：JP35672299

    申请日：1999-12-15

    Applicant: XEROX CORP

    Inventor： LINDER MICHAEL J ,  MOORE CLAUDE E ,  YOW D GREGORY

    IPC: B65H1/18 ,  B65H7/02

    Abstract: PROBLEM TO BE SOLVED: To provide a method to statically and dynamically control height and an angle of a paper feeding tray of an electrostatic photograph printer. SOLUTION: Sensors to detect stack height of sheets are arranged at two points. A front edge positional sensor 340 which is the first sensor detects height of a stack in the neighborhood of a front edge 152 of the sheets. A stack height sensor 350 which is the second sensor detects height of the stack roughly in the neighborhood of a center of the sheets in the sheet carrier direction. A characteristic of the sheets, for example, a state of curl of the sheets can be presumed from relations of a position of a sheet support tray 210 and the stack height detected by the two sensors. The sheet support tray is ascended and descended, and inclined, and the stack is placed at a proper position in accordance with the characteristics of this state of curl, weight per unit area of the sheets input or automatically detected, etc.

    SHEET FEEDER
    18.
    发明专利
    SHEET FEEDER 失效

    公开(公告)号：JP2000191150A

    公开(公告)日：2000-07-11

    申请号：JP35672199

    申请日：1999-12-15

    Applicant: XEROX CORP

    Inventor： LINDER MICHAEL J ,  HAAG WILLIAM R ,  MOORE KENNETH P ,  WILLIAMS STEPHEN B

    IPC: B65H1/18

    Abstract: PROBLEM TO BE SOLVED: To provide a sheet feeder capable of changing a position of an upper part of a sheet stack in accordance with a characteristic of a paper sheet. SOLUTION: A head end of a revolving stack height detection arm 352 makes contact with an upper part of a stack. In accordance with revolution of the arm 352, a flag 354 integrated with it also revolves. Revolutional quantity of the flag 354 is detected by a transmission sensor 355, and stack height is detected. A target value of stack height is previously set in accordance with weight of a medium. A support tray is raised and lowered so that the detected stack height becomes the target value. Stacked feeding of a plural number of sheets is prevented by setting the stack height low, that is, setting a clearance with a paper feeding head large when feeding a light weight medium. Time required for supply of the medium is shortened by setting the clearance small in the case of a heavy medium.

Patent Agency Ranking