JPH02310218A - Original feeder - Google Patents

Abstract

PURPOSE:To enable it to process originals different in size simultaneously by installing plural numbers of step parts in an original guide, and making these different sized originals settable at the same time, in an original feeder for a copying machine or the like. CONSTITUTION:In an original guide of an original reader 1, there are provided with a small size original mount part 2, a small size original side plate part 3, a large size original mount part 4 and a variable side plate 5. Then, a small size original, for example, A4 size is set to the small size mount part 2 and a large original, for example, A3 size to the mount 4, respectively. When original feed takes place, an unillustrated original size sensor detects this original size, and an image signal read on the basis of this size is enlarged, contracted or equi-magnified. With this constitution, different sized originals can be handle by setting them at the same time and what is more, they become usable so easily.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a document feeding device used in facsimiles, copying machines, and the like.

[Prior Art] Conventionally, as shown in FIG. 8, document feeding devices have two document feeders of different widths at the same time. Manuscripts of similar quality or higher were not loaded. Moreover, even if it could be done, matching could not be achieved and it was likely to become irregular.

[Problems to be Solved by the Invention] Conventionally, when feeding two or more types of originals with different widths, the only method available was to feed them in two steps.

In facsimile, there was no other way than to match originals of different sizes to other documents of the same size, or to send them in two batches.

[Means for Solving the Problems (and Effects)] According to the present invention, by providing a document guide with at least two or more steps, the sides of at least two or more types of documents can be kited, and two or more types of documents can be kited at once. This allows you to set originals.

Embodiment 1 FIGS. 1 to 5 show a first embodiment of the present invention, and FIG. 1 is a perspective view that best represents the features of the present invention. In the figure, 1 is a document reading device, 2 is a small-sized placing table part of a document guide, 3 is a small-sized side plate part of a document guide, 4 is a large-sized placing table part of a document guide, and 5 is a document guide. In the variable side plate section, 6 is a document presence/absence sensor, 7 is a small size document sensor, 8 is a medium size document sensor, and 9 is a large size document sensor. 2, 3, 4.5 are integrally formed and constitute a movable guide.

Next, in the above configuration, for example, A
4, and A3 on j711t M platform 4. The document presence/absence sensor 6 works to know that there is a document. When the start button is pressed, a feed roller (not shown) of the document feeding device operates to feed the document. At this point, if it is a sketch paper, it is fed from the smaller size first, and if it is a top-feeding method, the larger size paper is fed from the top. After the document has been fed for a while, the size is detected by the document size sensor and it is possible to determine what size the document has been sent. According to this size detection, the read image No. 18 is enlarged, reduced, or the same size.

Figure 2 is a plan view of the present invention, and 10, 11.12 are original 1^
This is a hole provided at the lower part of the guide side plate 5 into which a pin is inserted. In the figure, the side plate 5 is attached to the hole 12.

FIG. 3 is a state diagram showing a small size and a large size.

FIG. 4 is a state diagram showing a small size and a medium size.

FIG. 5 is a state diagram showing only the small size.

In this way, adjust the document guide variable side plate part 5 to 10°11.1
You can load different sizes from one size at a time by switching between the two holes.

Also, in Figures 6 and 7, sensors are used in the guide section instead of the sensors 7.8.9 in Figure 1, and the microswitches 21 and 22 detect the size of the inside. , photocouplers 24 and 25 detect the size set on the outside. If the inside is A4 or larger, the photo coupler will not work and only a single document can be fed. In addition, in the figure, 16.20 is a rack, 17 is a pinion, 18 is a click hole, 19 is a click plate, and 23 is a detector.

[Effects of the Invention] As explained above, by providing the document guide with at least two stages, different widths can be placed on the document guide, allowing 2 f at a time! It is possible to set more than one type of original, and there is no need to send the original in two or more parts, which has the effect of saving time and making it easier to use.

In particular, for example, in the case of facsimiles, the inconvenience of having to take the trouble of reducing or enlarging them using a copying machine, etc., adjusting the size before setting them, or having to send them to the same place again after completing one communication is eliminated. I can take a portrait.

[Brief explanation of the drawing]

Figure 1 is a perspective view of the present invention; Figure 2 is a plan view of the present invention; Figures 3, 4, and 5 are state diagrams of the present invention; Figure 6 is a state diagram of the present invention; Another mechanism diagram for size detection, FIG. 7 is a sectional view of FIG. 6, and FIG. 8 is a perspective view of a conventional device that sends only the same size. 1 is the document feeding device 2, the small-sized document guide placement table 3, the small-sized document guide side plate 4, the large-sized document guide placement table 5, the variable document guide side plate 6, the document presence sensor 7, The small size document sensor 8, the medium size document sensor 9, the large size document sensor 30.11. The size of the original 16 is the rack 17, the pinion + 8 is the notch in the rack + 9 is the plate spring 20 is the cam part 21. 22 is the micro switch 23 is the detection bar 2jj, 25 is the photocoupler

Claims (1)

[Claims] A document feeding device characterized by having a document guide means having at least two stepped portions and for setting documents of different sizes at the same time.