Photocopying – Including fiber optics
Patent
1982-12-06
1985-07-30
Grimley, A. T.
Photocopying
Including fiber optics
355 3SH, 355 3TR, 355 3TE, 355 3CH, 271 81, 271207, 271213, 271293, G03G 1500, G03G 1522, B65H 3122, B65H 502
Patent
active
045318239
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE ART
The present invention, generally, relates to an electrophotographic copying machine. More particularly, the present invention relates to an improvement in the structure of an electrophotographic copying machine adapted to expose a photosensitive drum to light to form an electrostatic latent image, to develop the electrostatic latent image by means of a toner in a developing apparatus, to transfer the toner image to a copy paper fed from a copy paper storing portion, to fix the toner image transferred on the copy paper, and thereafter to eject the copy paper to the exterior of the machine body.
BACKGROUND ART
One of prior arts of interest to the present invention is disclosed in Japanese Utility Model Laying-Open Gazette No. 153240/1979 (which corresponds to U.S. Pat. No. 4,275,876, issued June 30, 1981). This prior art is an electrophotographic copying machine structured such that a part of a copy paper transporting path from a paper supplying portion to a paper ejecting portion is made into one unit and the unit is structured in a manner capable of being drawn in the copy paper transporting direction from the copying machine main body. More specifically, this prior art is structured such that most of the copy paper transporting path including a transferring portion, a fixing portion and a paper ejecting roller, a copy paper storing portion and a paper supplying roller, is made into one unit. And, the same is adapted such that, when a paper jam (a jam) occurs at a part of the copy paper transporting path, the unit is drawn in the copy paper transporting direction, whereby the copy paper having caused the paper jam is easily taken out. However, in this prior art, the paper supplying roller remains attached to the copying machine main body side, since it is impossible to draw all of the copy paper transporting path including a paper supplying cassette for the reason to be described subsequently. Accordingly, on the occasion of a paper jam having occurred in the close vicinity of a paper supplying end, it is necessary to insert a hand into the vicinity of the photosensitive drum to draw out the copy paper in the direction perpendicular to the transporting direction. Such is not different from the conventional devices having been known prior to this prior art, and such involves a possibility of injuring the photosensitive drum or a sufficient possibility of touching the photosensitive drum by the hand. Accordingly, in this prior art, there remains the drawback of the conventional arts, that is, the possibility of injuring the photosensitive drum or of touching the photosensitive drum on the occasion of taking out the copy paper having caused the paper jam, and it is impossible to say that an entire improvement has been made compared to the conventional arts.
Another example of the prior art described in Japanese Patent Laying-Open Gazette No. 12335/1978, laid open on Feb. 3, 1978. In this prior art, differing from the above described prior art, a part of the copy paper transporting path from the paper supplying portion to the photosensitive drum is made into an integrated unit, and the unit is structured to be capable of moving in the direction parallel with the radial direction of the photosensitive drum, or the copy paper transporting direction. This other prior art also relates to an improvement in making it easy the copy paper on the occasion a paper jam. However, in this prior art, since it is impossible to draw portions other than the paper supplying portion, it is necessary to insert a hand into the interior of the main body as before on the occasion of the paper jam at portions of a developing apparatus or a drying roller, whereby there is a great probability of touching the photosensitive drum. Meanwhile, in this prior art, it is impossible to make the transporting path and the paper supplying portion as a unit and to draw the unit. The reason is that the copying machine described in Japanese Patent Laying-Open Gazette No. 12335/1978 is adapted to make liquid development, whereby
REFERENCES:
patent: 3632201 (1972-01-01), Granzow et al.
patent: 3997262 (1976-12-01), Doi et al.
patent: 4017169 (1977-04-01), Komura et al.
patent: 4021108 (1977-05-01), Ozaki et al.
patent: 4116429 (1978-09-01), Van Buskirk et al.
patent: 4116556 (1978-09-01), Tanaka et al.
patent: 4275876 (1981-06-01), Imaizumi
Deguchi Yutaka
Iinuma Daiwa
Kouzuki Rikuzou
Sakamoto Kiyoshi
Shibata Yoshitaka
Flower Terry
Grimley A. T.
Sanyo Electric Co,. Ltd.
LandOfFree
Electrostatic copying machine having removable paper path does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Electrostatic copying machine having removable paper path, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electrostatic copying machine having removable paper path will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2369560