Photocopying – Contact printing – Light boxes
Patent
1990-11-13
1992-03-31
Pendegrass, Joan H.
Photocopying
Contact printing
Light boxes
355298, 340613, G03G 2100
Patent
active
051012286
ABSTRACT:
A storage vessel detecting mechanism is used for detecting an error condition of a storage vessel, which is detachably fitted in a main apparatus. The vessel is movably fitted in the main apparatus, and one end of a movable member, which is pivoted, is engaged with the vessel. The other end of the movable member is located between first and second positions when the vessel is not installed and when the vessel is accommodating a predetermined amount of substances therein. It is determined whether the other end of the movable member is located in a predetermined range. An error condition of the vessel is detected when the other end of the movable member is located at a position other than in the predetermined range.
REFERENCES:
patent: 3838922 (1974-10-01), Nelson
patent: 3909258 (1975-09-01), Kotz
patent: 4436414 (1984-03-01), Kamiyama et al.
patent: 4640880 (1987-02-01), Kawanishi et al.
patent: 4952974 (1990-08-01), Mori
Honda Ryoji
Kamasako Shoji
Kita Masahiro
Negishi Kiyoshi
Negoro Ikuo
Asahi Kogaku Kogyo Kabushiki Kaisha
Pendegrass Joan H.
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