(19)
(11) EP 0 374 575 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
27.02.1991 Bulletin 1991/09

(43) Date of publication A2:
27.06.1990 Bulletin 1990/26

(21) Application number: 89122379.4

(22) Date of filing: 05.12.1989
(51) International Patent Classification (IPC)5: G03G 15/00, B65H 9/16
(84) Designated Contracting States:
DE FR GB NL

(30) Priority: 22.12.1988 JP 324642/88

(71) Applicants:
  • HITACHI, LTD.
    Chiyoda-ku, Tokyo 101 (JP)
  • HITACHI KOKI CO., LTD.
    Chiyoda-ku, Tokyo (JP)

(72) Inventors:
  • Matsuno, Junichi
    Toride-shi (JP)
  • Ogasawara, Tsuyoshi
    Chiyodamura Niihari-gun Ibaraki-ken (JP)
  • Kawauchi, Masataka
    Ishioka-shi (JP)
  • Tsuji, Yasuyuki
    Katsuta-shi (JP)

(74) Representative: Patentanwälte Beetz - Timpe - Siegfried Schmitt-Fumian - Mayr 
Steinsdorfstrasse 10
80538 München
80538 München (DE)


(56) References cited: : 
   
       


    (54) Register mechanism for printing printer and printer with said register mechanism


    (57) A register mechanism for a printing printer is capable of correcting shift and skew of sheets of paper (1) which are conveyed by a plurality of paper conveying passages and of temporarily stopping the conveyance of the papers (1) while they are brought into register with a toner image. The register mechanism includes: oblique belts (4, 5) provided in each of the paper conveying passages; a guide plate (6, 7) for restricting inclination of the paper (1) located on the oblique belt (4, 5); and pivot members (8, 8a, 8b) for correcting skew of the papers (1), which is located at a joined portion of the paper conveying passsages where the sheets of paper (1) whose shift has been corrected by the respective guide plates (6, 7) are joined, and downstream of the conveying passages at a distance shorter than the length of the paper (1) in the conveying direction from the end of the guide plates (6, 7).







    Search report