JPS6138635U

JPS6138635U - Copy machine magnification mechanism

Info

Publication number: JPS6138635U
Application number: JP12372884U
Authority: JP
Inventors: 進渡部
Original assignee: 富士ゼロックス株式会社
Priority date: 1984-08-14
Filing date: 1984-08-14
Publication date: 1986-03-11

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は本考案変倍機構の一実施例を示す正面図、第２
図は原稿移動型複写機の光学系部分を示す図面、第３図
は光学系における物点、像点およびレンズの位置関係を
示す図面、第４図は変倍機構龜おける各部材の配置位置
関係を説明するための図面である。１・・・・・・複写機本体、２・・・・・・プラテンガ
ラス、３・・・・・・原稿、４・・・・・・照明ランプ
、５・・・・・・第１ミラー、６・・・・・・レンズ、
７・・・・・・第２ミラー、８・・・・・・感光体ドラ
ム、９・・・・・・第１ミラー保持部材、１０・・・・
・・レンズマウント駆動ケーブル、１１・・・・・・レ
ンズマウント、１２・・・・・・レンズマウント案内軸
、１３・・・・・・駆動モータ、１４・・・・・・光軸
、１５′・・・・・・軸部材、１６・・・・・・貫通孔
、１７，１８・・・・・・ストツバ。Figure 1 is a front view showing one embodiment of the variable power mechanism of the present invention;
The figure shows the optical system part of a moving document copying machine. Figure 3 shows the positional relationship between the object point, image point, and lens in the optical system. Figure 4 shows the arrangement of each member in the variable magnification mechanism. It is a drawing for explaining the relationship. 1...Copy machine body, 2...Platen glass, 3...Original, 4...Illumination lamp, 5...First mirror , 6...lens,
7... Second mirror, 8... Photosensitive drum, 9... First mirror holding member, 10...
... Lens mount drive cable, 11 ... Lens mount, 12 ... Lens mount guide shaft, 13 ... Drive motor, 14 ... Optical axis, 15 '... Shaft member, 16... Through hole, 17, 18... Stroller.

Claims

[Scope of utility model registration request]

a first mirror that directs the slit light from the original toward the lens;
A moving original copying machine, which has a second mirror that directs the slit light that has passed through the lens toward the body, and the conjugate length when changing magnification is changed by changing the position of the first mirror, By causing the holding member of the first mirror to follow the lens with a large play, the lens is moved during zooming to first determine the position of the first mirror holding member, and then the lens position is adjusted. A variable magnification mechanism for a copying machine featuring the following.