Photocopying – Contact printing – Light boxes
Patent
1989-02-14
1990-06-05
Braun, Fred L.
Photocopying
Contact printing
Light boxes
355260, G03G 1506
Patent
active
049318373
ABSTRACT:
An image-forming apparatus is provided with a photosensitive drum rotatably located in a housing, and a developing device for developing the latent image formed on the surface of the photosensitive drum. A first developing unit of the developing device develops the latent image by a color developing agent. A second developing unit develops the latent image by a second black developing agent. The first and second developing units are alternatively driven by a switch provided on a control panel which is located on the housing. The first developing unit is in the form of a cartridge which can be removably set in the housing. A pair of positioning members are attached to the front and rear walls of the developing agent supply section of the first developing unit. Both end support portions of the handle are swingably mounted on the positioning members by supporting shafts, individually. Each support portion of the handle is fitted with a hook which can rock around its corresponding supporting shaft. The hook engages its corresponding retaining pin on the housing, thereby restraining the handle from moving upward. An engaging recess (a first positioning portion) and an end face (a second positioning portion), both formed on the bottom side of each positioning member, are adapted to engage and abut against positioning pins on the housing, respectively. Thus, the first developing unit is held in a prescribed position.
REFERENCES:
patent: 3924944 (1975-12-01), Smith et al.
patent: 3976371 (1976-08-01), Moser et al.
patent: 3998537 (1976-12-01), Smith et al.
patent: 4097139 (1978-06-01), Hauser et al.
patent: 4373468 (1983-02-01), Suda et al.
patent: 4460267 (1984-07-01), Ogawa
patent: 4579443 (1986-04-01), Abuyama et al.
Abuyama Yasuo
Hamanaka Osamu
Ide Fumito
Sanbayashi Takeshi
Braun Fred L.
Kabushiki Kaisha Toshiba
LandOfFree
Removable developing unit for an electrostatic copier and lockin does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Removable developing unit for an electrostatic copier and lockin, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Removable developing unit for an electrostatic copier and lockin will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-494863