JPS59204834A - Registration guide - Google Patents

Abstract

PURPOSE:To set easily an original, and also to reduce cost by providing a member supporting the corner edge of one side of the original, and moving it in accordance with an original size, in a center registration type. CONSTITUTION:One end of a supporting member 3 for supporting the corner edge of one side of an original is inserted through a long hole 2', its tip is attached to a belt 5, and the supporting member 3 is constituted so as to be positioned automatically through the belt 5 in accordance with a selected form size. Therefore, even if the size of the original is varied, the original can be set very easily by the movement of supporting member 3. Also, the arrangement of a paper feed system and an optical system is not complicated because of the center matching, therefore, the cost can be reduced comparing with a case of a corner registration.

Description

[Detailed description of the invention] [Industrial application field] This invention relates to a registration guide.

[Prior art]

2. Description of the Related Art Conventionally, there have been two methods for setting a document in a copying machine: corner registration and center registration. Corner registration makes it easy to set a document, but the arrangement of rollers in the paper feed system is complicated, and in the optical system, the light shielding method and light intensity distribution correction method are complicated, leading to an increase in cost. In other words, because the center of the optical axis goes out of alignment, everything goes out of order. While center registration eliminates the complexity of arranging paper feed rollers and shading the optical system, it also makes it difficult and troublesome to set the original.

[Purpose of the invention]

The present invention has been made in view of this point, and aims to eliminate the troublesome setting of originals and also avoid the increase in cost caused by corner registration.

[Structure of the invention]

In order to achieve the above-mentioned object, this invention provides a center registration type with a member that supports the front or rear corner edge of the document, and allows the member to be moved according to the size of the document. There is.

〔Example〕

Hereinafter, one embodiment of the present invention will be described based on the drawings.

Figures 1 to 3 show an embodiment of this invention.
This figure shows a case in which a movable support member is provided on the front side of a document in a center registration type copying machine in which the document is set.

In Figure 1, (1) is a platen glass, (2) is a registration guide, (8) is a support member that supports the corner edge,
In this embodiment, the support member (3) is provided in front of the original (lower side in the figure) so that it can be moved in the direction of the arrow in accordance with the original size. That is, one end of the support member (3) is inserted into the elongated hole (2)', its tip is attached to the belt (5) by the fixing plate (4) as shown in Fig. 2, and the belt (5) is attached as shown in Fig. 8. 5) is hooked onto a pulley (6) and driven by a transfer motor (7). In this way, the support member (3) is supported by a belt (5) driven by a motor (7).
The paper size and magnification ratio are connected to each other so that the paper is automatically operated and positioned according to the selected paper size and magnification ratio. That is, even if the paper size changes, the optical center can be aligned, and it can be applied to a type of copying machine that can change the magnification.

According to the above configuration, when placing the original, the platen glass +
11 can be easily set in the front-back direction by the support member (8). For this reason, even in the case of center registration, it is easy to set the original as in the case of corner registration, without the troublesome setting of the original, which was a drawback with center registration. Since the light shielding method of the system is not complicated, the cost can be reduced compared to the case of corner registration.

〔Effect of the invention〕

As described above, the present invention has effects such that center registration can provide the same ease of document placement as corner registration, and can also reduce costs compared to corner registration. .

[Brief explanation of the drawing]

FIG. 1 is a plan view showing one embodiment of the present invention, and FIGS. 2 and 8 are side views. Code explanation

Claims (1)

[Claims] 1. A registration guide in a center registration type document setting device, characterized in that a supporting member movable according to the document size is provided at one corner edge of the document.