Photocopying – Contact printing – Light boxes
Patent
1994-06-24
1996-02-20
Brase, Sandra L.
Photocopying
Contact printing
Light boxes
355204, G03G 2100
Patent
active
054933650
ABSTRACT:
In an image forming apparatus, an operating section accessible for entering various information and commands is implemented as a plurality of key units. The key units are each removably connected to the body of the operating section via cooperative connectors. When any one of the key units is damaged or or the life thereof expires, only the defective unit is replaced while the other units are continuously used.
REFERENCES:
patent: 4887129 (1989-12-01), Shenoy et al.
patent: 4963932 (1990-10-01), Horvath
patent: 5027153 (1991-06-01), Somiya
patent: 5091746 (1992-02-01), Watanabe
patent: 5212519 (1993-05-01), Kasahra et al.
patent: 5325152 (1994-06-01), Higashio et al.
patent: 5343275 (1994-08-01), Sulenski
Echigo Katsuhiro
Kawada Yasuo
Kawahara Shin-ichi
Kawashima Yasuhiro
Kishi Fumio
Brase Sandra L.
Ricoh & Company, Ltd.
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