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1. 发明专利

GB2210829B OFFSET PRINTER HAVING A PRESS DRUM LARGER THAN ITS RUBBER DRUM. 未知
公开(公告)号：GB2210829B
公开(公告)日：1991-09-04
申请号：GB8824121
申请日：1988-10-14
申请人： RICOH KK
发明人： OKUBO TOSHIMITSU , KOBAYASHI KAZUYOSHI , OHMURA KOHKI , SAI YOSHINOBU , SATOH TAKUO , YOSHINO YUKIHIKO , HOSHI NOBUYUKI , ONODERA TAKAYUKI , ENDOH YASUO , IROKAWA SIGENOBU , SANNOHE TOSHIAKI
IPC分类号： B41C1/10 , B41F7/02 , B41L17/12 , B41L17/24 , B41L21/06 , B41L29/16 , H04N1/00 , H04N1/23

2. 发明专利

GB2210829A OFFSET PRINTER AND PLATE MAKER 未知
公开(公告)号：GB2210829A
公开(公告)日：1989-06-21
申请号：GB8824121
申请日：1988-10-14
申请人： RICOH KK
发明人： OKUBO TOSHIMITSU , KOBAYASHI KAZUYOSHI , OHMURA KOHKI , SAI YOSHINOBU , SATOH TAKUO , YOSHINO YUKIHIKO , HOSHI NOBUYUKI , ONODERA TAKAYUKI , ENDOH YASUO , IROKAWA SIGENOBU , SANNOHE TOSHIAKI
IPC分类号： B41C1/10 , B41F7/02 , B41L17/12 , B41L17/24 , B41L21/06 , B41L29/16 , H04N1/00 , H04N1/23

3. 发明专利

DE3835107A1 未知
公开(公告)号：DE3835107A1
公开(公告)日：1989-04-27
申请号：DE3835107
申请日：1988-10-14
申请人： RICOH KK
发明人： OKUBO TOSHIMITSU , KOBAYASHI KAZUYOSHI , OHMURA KOHKI , SAI YOSHINOBU , SATOH TAKUO , YOSHINO YUKIHIKO , HOSHI NOBUYUKI , ONODERA TAKAYUKI , ENDOH YASUO , IROKAWA SIGENOBU , SANNOHE TOSHIAKI
IPC分类号： B41C1/10 , B41F7/02 , B41L17/12 , B41L17/24 , B41L21/06 , B41L29/16 , H04N1/00 , H04N1/23

4. 发明专利

JPH03223039A PAPER FEEDER 失效
公开(公告)号：JPH03223039A
公开(公告)日：1991-10-02
申请号：JP5132990
申请日：1990-03-02
申请人： RICOH KK
发明人： CHIBA KEIICHI , SAI YOSHINOBU , MITO TOSHIAKI
IPC分类号： B65H1/28 , B65H3/44
摘要： PURPOSE:To prevent no-feed of a paper form and generation of jam while improving the work efficiency by providing a base table and a moving table, movably mounted in a direction orthogonal to a paper form feed direction relating to this base table, and parallelly arranging paper feed beds provided with respectively independent lift mechanisms, in the above mentioned moving table. CONSTITUTION:A moving base 2 (moving table) is slidably mounted in a direction of a arrow mark A (direction orthogonal to a paper feed direction) by a pair of sliders 16 onto a fixed base 1(base table), and paper feed beds 3, 4 are juxtaposed on the base 2 and provided with lift mechanisms 5, 6, respectively, and side fences 9, 10 made movable in compliance with respective sizes of paper forms 7, 8. A paper feed roller 11 is arranged in a determined position so as to feed a paper forms by moving either one of the paper feed beds 3, 4 below the roller 11. The paper form is fed sheet by sheet successively from the uppermost paper sheet by the roller 11 and conveyed while being held between a press barrel 13 and a rubber barrel 14 in the predetermined timing by paired resist rollers 12.

5. 发明专利

JPH03272940A PAPER FEEDING DEVICE 失效
公开(公告)号：JPH03272940A
公开(公告)日：1991-12-04
申请号：JP6808790
申请日：1990-03-20
申请人： RICOH KK
发明人： SAI YOSHINOBU
IPC分类号： B65H3/46 , B65H3/52
摘要： PURPOSE:To prevent any wasteful use of paper sheets and prevent the generation of jam and skew by installing a paper sheet returning member so as to project in a feeding passage on the outlet side of a paper assorting part from a retreat position during a paper sheet feeding process and accommodating the paper sheets into a paper sheet container. CONSTITUTION:The paper feeding device in the title is constituted of a paper feeding roller 1 which are revolved by a transmission belt 8, and a paper assorting roller 2, a paper advance controlling member 3 which is installed in swingable manner around a shaft 9 by a solenoid 6, and a paper returning member 7 which is fixed on a rotary shaft 10 and supported in swingable manner. In paper sheet feed, the paper advance controlling member 3 is separated from the paper assorting member 2 by turning ON the solenoid 6, and a paper feeding board 5 is lowered. Further, the paper returning member 7 is turned in the counterclockwise direction, and the paper sheet set between the paper assorting roller 2 and the paper advance controlling member 3 is pushed back on the paper feeding board 5. Accordingly, the wasteful use of paper sheets and generation of jam and skew are prevented, and the operation performance and reliability of the paper feeding device can be improved.

6. 发明专利

JPH02310066A DRIVE CONTROLLER FOR PAPER FEEDER 失效
公开(公告)号：JPH02310066A
公开(公告)日：1990-12-25
申请号：JP13213889
申请日：1989-05-25
申请人： RICOH KK
发明人： SAI YOSHINOBU
IPC分类号： B41J11/42 , B41J11/20 , B41J13/00 , B41J13/02 , B41J25/308 , B41J25/316 , B41J29/48 , B41J29/52
摘要： PURPOSE:To eliminate a noise caused by an expansion of a deflected part of paper at the start of a resist roller and to prevent the occurrence of paper feeding error, paper folding, and wrinkle by controlling a paper feed amount to a proper amount in accordance with the thickness and feed speed of paper. CONSTITUTION:With the detection of the leading end of fed paper P by a paper sensor 60, a feed mode for the paper P is judged by a control means 70 on the basis of the feed speed and thickness of the paper P. The control means 70 controls a drive time so as to stop the power supply to a pulse motor 51 at a timing appropriate for the leading end of the paper P reaching a nip part of a resist roller 3 to be fed by a slight amount to generate a small deflection in a tissue high-speed mode, or at the latest timing in a thick-paper low-speed mode wherein the secure insertion of the paper P into the nip part of the resist roller 3 is most hard to obtain. The fed paper P is waited with the leading end thereof securedly inserted in the nip part of the resist roller 3, and the resist roller 3 is driven at the predetermined timing.

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