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Image forming device with separable units

  • US 4,814,817 A
  • Filed: 10/27/1987
  • Issued: 03/21/1989
  • Est. Priority Date: 10/29/1986
  • Status: Expired due to Term
First Claim
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1. In an image forming device comprising an upper unit, a middle unit which is joined with said upper unit rotatably around a first axis means and a lower unit which is joined with said middle unit rotatably around a second axis means whereby said upper unit and said middle unit form a first mutually openable pair and said middle unit and said lower unit form a second mutually openable pair, the improvement wherein said first and second axis means are symmetrically disposed, wherein each of said pairs is provided with an engaging mechanism for the corresponding one of said pairs, and wherein said device further comprises locking means for locking one of said engaging mechanisms when the pair corresponding to the other of said engaging mechanisms is open.

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