JPS6293158A - Automatic original copy feed device for copying machine - Google Patents

Abstract

PURPOSE:To facilitate the setting of two original copies to aim at improving the manipulatability and at enhancing the efficiency, by providing a first detector at an all size original copy detecting position and second detectors at a detecting position which is outside of the side edges remote from the registration side when the original copy is laid longitudinally, and at which the original copy is laid transversely. CONSTITUTION:A first detector 111 is arranged at an all size original copy detecting position, and second detectors 112, 113, 114-11n are arranged at a detecting position which is outside of the side edge remote from a registration guide 13 and at which an original copy is laid transversely. Further, an original copy conveying signal is issued during detection by both detectors. Further, no conveying signal is issued until two original copies are set. Further, after the setting, two original copies 2 are introduced onto a platen, and therefor no trouble some manipulation of a starting switch as conventionally required for setting one original copies or two original copies, is necessary. thus, it is possible to aim at improving the manipulatability and enhancing the copying operation.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention is a method for transporting two originals onto a platen at the same time.
The present invention relates to an automatic document feeder for a copying machine capable of copying onto one sheet of paper.

Conventional technology When copying two originals on the same sheet of paper using a conventional copying machine,
First, set one original on the platen, and then set the other original on the platen while the copier is preparing to copy, or set two originals and then press the copy start switch. It is necessary to press the button.

Me again! In the case of an IJ document feeder, first set the first document using the side opposite to the side where the detector that detects the document and generates the copy start signal is installed, and then turn the detector side. It is necessary to use this function to set the second original.

However, both methods have problems such as being cumbersome to operate and having very poor work efficiency when copying a large number of originals.

This invention was made for the purpose of improving the above-mentioned problems.

Means and effects for solving the problem 1. In a copying machine that detects the size of the original to be copied and selects the optimal size paper from this size information and preset ratio information, etc. Place the first document detector at a position where it can detect the original, and when the document of each size is placed vertically.When the document of each size is placed outside the side edge opposite to the registration side and the minimum size document is placed horizontally. A second document detector is provided at a position where this document can be detected, and when these document detectors detect the document! An automatic document feeder for a copying machine that outputs a document conveyance start signal so that two documents placed side by side can be carried onto a platen.

2. In a copying machine that detects the size of the original to be copied and selects the optimal size paper based on this size information and preset magnification information, the first original is detected at a position where all sizes of originals can be detected. If the originals of each size are placed vertically, there are multiple original detectors located on the outside (at the side edge opposite to the registration side of each original) and in positions where each size of original can be detected individually. The first
When the document detector and the document detector located at the outermost side of these document detectors detect the document, they output a document conveyance start signal so that two documents can be conveyed side by side onto the platen. Nine multi-purpose automatic document feeder.

Embodiment One embodiment of the present invention will be described in detail with reference to the drawings. In the figure, the eye is a copying machine, which is equipped with a companion platen 3 on top of which is placed an original 2 to be copied. Platen 3
A main body 4 of an automatic document feeder is installed above the document feeder.

The main body 4 is provided with a conveying means (none of which is shown) for sucking the originals 2 to be copied one by one from the original tray 5 and transporting them onto the platen 3, and transporting them onto the platen 3 after copying. At the same time, the document 2 is manually inserted on the side of the main body 4.
A document insertion tray 5 into which documents can be loaded is installed. On the platen 3 side of the document insertion tray 5, a conveyance roll 6 and a vinyl roll 7 are provided in the vertical direction. The gate part 9cL of the registration gate 9 which swings vertically around the support shaft ε of the vinyl roll 7 is supported at a position opposite to the gate part 9cL of the registration gate 9 with the support shaft 8 in between. When 9a closes the conveyance path 10 of the document 2, the vinci roll 7 is separated from the conveyance roll 6, the gate portion 9a is opened downward, and the vinci roll 7 is moved toward the conveyance roll 6 from below. The originals 2 on the original insertion tray 5 are conveyed onto the platen 3 between the transport roll 6 and the vinyl roll 7 by being pressed against each other.

On the other hand, between the conveyance wheel 6 and the gate portion qa of the registration gate 9, there are a plurality of document detectors IIl' to
11 are installed at intervals in a direction perpendicular to the conveyance direction 12 of the document 2.

Among these document detectors 111 to 11, the first document detector I+□ is installed near the registration guide 13 provided on one side of the document insertion tray 5, as shown in FIG. It is inserted along the registration guide I3 so that documents 2 of all sizes can be detected.

In addition, the second document detector 11m detects B5 size documents 2z and A.
4 size manuscripts 2! When it is placed vertically, it reads 2112! is not detected and the B5 size original 2° is placed horizontally, the original 2
1 is installed at a position where it can be detected (see Figure 2).

In addition, when the third document detector 111 is placed horizontally, the document 2. at a position where it can be detected, and the fourth
Document detectors 114/dB4 size documents are installed at positions where they can be detected when the document 24 is placed horizontally.

Up to 11 tube detectors are installed for each document size, and are designed to detect the inserted document 2 as follows and output a size signal and a copy start signal to a control section (not shown). .

Next, the operation will be explained with reference to the flowchart shown in FIG. Lay it horizontally and insert one part into the registration guide 13 while holding it together until the tip hits the gate part 9a of the registration gate 9.

At this time, when the size of the original 2 is B5, the first and second original detectors "tellm" are turned on.

The control unit starts the operation from "Start" in the flowchart shown in FIG. 4 when the first detector 111 is turned on, and proceeds from step ■ to step ■, and turns on the first document detector I11 located at the outermost position. Check if it is. If the first document detector I11 is not turned on, the process proceeds to step (2) to check whether the fourth document detector II4 is turned on, and if it is not turned on, the process sequentially proceeds to step 0 and step (2). After confirming that the first document detector I11 is turned on in step ■, step ■
Then, it is determined that the document size is B5, and a size signal and a document conveyance start signal are output to the control section.

At the same time, registration game 1-9 (D'l-) section 9
a is opened, the original 2 on the original insertion tray 5 is fed onto the platen 3, and the copying operation is started.

In addition, if the original 2 inserted into the original insertion tray 5 is human 4 size, the paper size is determined in step 2, and if it is B4 size, the paper size is determined in step 2, and the copying operation is started in the same way as above. At the same time, a sheet of optimal size is selected according to the document size information and preselected magnification information, and copying is performed on this sheet.

The above is a case where one original document 2 is copied onto one sheet of paper, but when two original documents 2 are simultaneously fed and copied onto one sheet of paper, the following operation is performed.

For example, when copying two B5 size originals 2 side by side as shown in FIG. At this time, the second document detector! 1. is turned on, but the second document detector 111 and the following are not turned on, so no document conveyance start signal is output.

Registration guide 13 for 1khr & second original 2
y) If the second original 2 is set at a position that has the width of the original 2, the second to fourth original detectors 111 e l 1
1 @ l 14 is on, but the first document detector I1
1 is not turned on, the document conveyance start signal is not output, and therefore the document 20 can be set from either side.

Next, when the second original 2 is placed vertically next to the first original 2, the fourth original detector II4 is turned on by the second original 2, so the original size is determined to be B4 in step O. , an original transport start signal is output together with the original size signal, and the two originals 2 are simultaneously carried onto the platen 3, and the two originals 2 are simultaneously placed on the paper selected according to the original size information and the magnification information. will be copied.

Due to the above-described operation, the originals 2 carried onto the platen 3 at the same time can be copied onto one sheet of paper. Also, for the original 2 larger than the B5 size original 2□, do the same on the platen 3.
By carrying the paper upward, it is possible to copy onto two sheets of paper.

In the above embodiment, a case has been described in which a hand-feeded original 2 is copied, but each original detector 1 fl to IIs is provided in the original transport path), and the same applies to the nine originals 2 that are automatically fed). It is possible to copy two originals 2 onto one sheet of paper.

Effects of the Invention As described in detail above, the present invention makes it possible to easily set the originals by not outputting the original transport start signal until two originals are set on the original tray. There is no need for troublesome operations such as pressing the copy start switch every time two sheets are placed on the platen (conventionally, two sheets are placed on the platen one at a time). , it is possible to improve operability and copy efficiency.

[Brief explanation of drawings]

The drawings show an embodiment of the invention, with FIG. 1 being a partially omitted side view, FIG. 2 being a plan view of the same, and FIG.
FIG. 4 is a flowchart showing the operation. 2 is a manuscript, and ■1 to ■ru are manuscript detectors. Figure 1 Figure 2

Claims (1)

[Claims] 1. In a copying machine that detects the size of the original 2 to be copied and selects the optimal size of paper from this size information and information such as a preset magnification, all sizes of originals can be copied. When the first document detector 11_1 is placed at a position where it can detect the document 2, and document 2 of each size is placed vertically, the document of the minimum size is placed at a position outside the side edge opposite to the registration side of each document 2. 2 is placed horizontally, a second document detector 11_2 is provided at a position where the document 2 can be detected, and the first and second document detectors 11_1 are connected to each other. An automatic document feeder of a copying machine is configured to output a document conveyance start signal when both devices 11_2 and 11_2 detect a document 2. 2. In a copying machine that detects the size of the original 2 to be copied and selects the optimal size of paper from this size information and information such as preset magnification, it is placed in a position where originals 2 of all sizes can be detected. When the first document detector 11_1 and the documents 2 of each size are placed vertically, each document 2 of each size can be detected individually at a position outside the side edge opposite to the registration side of each document 2. A plurality of document detectors 11_2 to 11_n are provided at positions, and when the first document detector 11_1 and the document detectors 11_2 to 11_n located at the outermost side of these document detectors 11_2 to 11_n detect the document 2, the document is detected. An automatic document feeder for a copying machine that outputs a conveyance start signal.