JPS5940663A - Sheet original recording device - Google Patents

Abstract

PURPOSE:To prevent an erroneous recording operation, by inhibiting recording when a detecting means which detects whether the direction of an original is normal or not detects an improper direction of the original. CONSTITUTION:For example, when an original having holes for codes such as a punch card is used, low-level detectors 40 and 41 output low-level signals every time the 1st sensor 34 and the 2nd sensor 35 detect holes of the sheet. When a holeless original is used, the low-level detectors 40 and 41 output high-level signals at any time. Then when a belt stopping device 46 operates, the driving of a conveyor belt is stopped.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a sheet original recording device that automatically conveys a sheet-like original containing information to an exposure position and records the information thereon.

In the original recording device of the copying machine and photographing device '9 that records sheet originals, a large number of sheets B:c (14) are automatically conveyed one by one from the original h'a supply section to the exposure position. In order to record correctly, the originals are stacked one on top of the other so that the information side (front surface) to be recorded faces the same predetermined side, and then set in the original supply unit.

However, the information side is not aligned correctly and the orientation of the document side is
f! If the document is set in the document supply unit, the front surface of the document will be recorded, causing a problem of copy errors. 4
When the conveyance speed of the document is high, it is difficult to visually check the front and back sides of the document being conveyed before recording, and it is impossible to prevent erroneous recording operations.

The present invention has been made in view of the above circumstances, and provides a sheet that can prevent erroneous recording operations when the orientation of the document is not iTE L; The purpose is to

Hereinafter, the invention will be explained with reference to usage examples shown in the drawings.

No. 114 shows a photographing device to which the present invention is applied;
3 is a document supply section in which a large number of documents are set with the information side of the sheet-like document 2 having information only on the front side facing toward the front side; A feeding belt is used to send out the belt, and the IJI is inserted into a pair of ---ra 4 and 5. The feeding heald 3 is configured to rotate integrally with the roller 4 with →11I of the roller 5 as the center, and when feeding a document, it is rotated by a solid line ( 11゛1 in the near position, l1ij
'b: If 6 is not sent out, it will be moved and placed at every 1" dashed line from the original.

6 is j8; (On the document conveyance heald, the roller 4111 is in the force direction.
After a while? (The loop is passed between several belts or a pair of rollers 7 and 8, and the feeding belt 3 and the conveyor belt 1 and 6 are in contact between rollers 5 and 7.Roller 7 is connected to a motor (
When the motor is driven, the transport heald 6 is connected to
As a result, the contact-resistant feeding belt 3 is driven with respect to the transport heald 6.Feeding...Rot 3 is reduced by the solid line 11; <Move to the document feed position J:! + When driven, the 11th part of the supply oil 1 is sent out from the kidney part 1, and the delivered document is sent to the J ball, belt, etc.
6, it is cured and conveyed to a predetermined path on the surface of the conveyor belt 6. The Ibf j(
:+ is projected onto the microfilm in the camera by the lens 17 of the camera 15, thereby blurring the information of the original document onto the film. A lamp 18 illuminates the document placed at the photographing position 16. Reference numeral 21 denotes a document detector for detecting the presence of a document, which is made of, for example, a microsinch.
When the leading edge of the original document reaches the detection position of this detector, a detection signal 11-Z is output, and the conveyance belt 6 is stopped due to this signal. do. The aA document detector 20 is placed near the end of the photographing position, and is positioned at the tip of the field of view that can be photographed by the camera J5. Detectors 30 and 31 are arranged on both sides of the document transport path and detect the presence or absence of information on the front and back sides of the document r11. As shown in FIG. 2, the detectors 30 and 31 each have lamps 32 and 33 that illuminate the original, and sensors 34 and 35 that detect light reflected from the original. do.

Figure 3 shows the conveyance control circuit of the device 1-.
・41 is a low level detector, 42 is a level ratio V device, 43 is a level detector, 44 is an ANDK-1, 45 is an alarm,
46 is the belt stop I-device.

The second (“second” sensor 34 is placed on the 1- side of the document,
The sensor/sensor 35 is arranged on the document side. Each sensor 34 and 35 outputs a signal of low weight 1"t when it detects the information part (black part) of the document, and outputs a signal f"fil' when it detects the part without information, that is, the pace part (white part). city(
) Output A, No. 1 of l. Level comparator 421st person 1st
The output voltage of the sensor 34 and the output of the second sensor 35 are compared, and the 114 horn electric moon of the first sensor 34 is determined.
When the output voltage of the second sensor 35 becomes greater than the output voltage of the second sensor 35, a signal of about 1F is output.

The level detector 43 receives the high potential (6) from the level comparator 42.
When it outputs No. 1, it outputs a high level iC1.

When a document with holes is used, the low level detectors 40 and 41 are used to perform photographing operations regardless of the orientation of the document without determining whether the document is front or back.

For example, as II; L draft, the code of punch card etc.
When using a sheet, when the first sensor 34 or 35 detects a hole in the sheet, a low level signal is output from the low level detector 40 or 41, and the hole is detected. If an original with no holes is used, the low level detectors 40 and 41 are configured to output extremely high level signals.In addition, if only an I11 paper without holes is used, the low level detectors 40 and 41 are I feel anxious.

When the heald stop device 46 is activated, it stops driving the conveyor belt 6! − to make.

FIG. 4 shows an output waveform diagram of each part of the control circuit. In the figure, during period T1, the information side of the document is 1. 11 - The signal waveform when the original is being transported in the correct state with the information side facing down (the Li waveform is stagnant, and during period T2, the signal waveform is when the document is being transported in the state with the information side facing downward and without the I side). It's small.

In the L device, when the belts 3 and 6 are driven and the document is sent to the H of the conveyor belt 6 in an L shape with the information side of the document facing ]-, the first sensor 34 detects the information on the document. The second sensor 35 detects the front side of the document and outputs a 1-1 signal that appears to have been canceled in the T1 period of the waveform shown in FIG. ) Waveform T
A signal as shown in one period is output. The low-potential signals A11SAL and A2 output from the 911 setter 34 indicate that the first sensor is detecting the information part of the document, and the high-potential output signals of each sensor indicate that the information part of the document is being detected. I'm here! I'm making my room smaller.

1- In the device Ivl, a document without holes is sent out from the supply section 1 through the belt 3/61, and this document has the information side 1. When the jar is transported in the correct state toward Since the potential does not become higher than the output potential, the level comparator 42 does not output crystal type ()"l No. 1.4, and as a result, the ant gate 44 does not open, and the 5!tu device 4
5 and belt stop upper device 46 does not operate. Therefore, the document sent out from the supply section 1 is conveyed to the exposure position by the conveyor belt 6. When the document detector 21 detects the leading edge of the document, the conveyor belt 6 stops, and the document stops at the exposure position. When the document stops at the exposure position, the shank of the camera 15 is heard, and information on the surface of the document is photographed and recorded in a fill L in the camera. After the photographing is completed, the conveyor belt 6 is driven 11f, and the photographed original is transferred to the tray 24.

Also, after the end of shooting Y, the belt 3 supplies the next Jj from the supply section L
l (If the document is sent out and the orientation of the document is correct, it will be recorded on the camera in the same way as described above.

Next, turn the information side of the document toward C and send it to the supply section L!・Explain the case. In this way, reluctantly! ;! When the manuscript is set, it is fed out from the supply unit 11; the manuscript is in an incorrect state with the information side facing C and the side with no information facing 1-! It will be transported in c. in this case,
Since the second sensor 35 detects information on the document and the sensor 51 does not detect any information, the output waveforms of each part are as shown in period T2 in FIG. 4, and the output potential of the first sensor 34 is The output potential becomes higher than the output potential of the second sensor 35, and the level comparator 42 outputs a high potential signal, which causes the alarm 45 to operate r1 by the signal output from the ant gate toggle 1.44, and a buzzer etc. In this way, the erroneous operation is explained in the operation name, and the rotation stop 1- device 46 is activated to stop the transport heald 6 and prevent the photographing operation from taking place.

When 1st person F1 is informed by the alarm 45 that the document has been inserted incorrectly, he takes out the document that was placed on the transport heddle 61 with the information side facing up, and transfers this document to
<I: Enter the orientation number and send it to the supply unit l], and then command it to send out the first original.

In addition,! - Note: In the example, one sensor detects the absence of information tμ on the manuscript surface, but it may be configured to detect the absence of information tμ using multiple sensors. The presence or absence of information is more important. You can know for sure.

Below 1. According to the present invention, it is possible to detect a document being conveyed with abnormal front and back sides and prevent it from being recorded.
Misrecording such as copying without an image or copying a back image can be prevented.

[Brief explanation of the drawing]

5S Figure 1 is a general yellow configuration diagram of an imaging device showing one embodiment of the present invention, Figure 2 is a diagram showing the main part configuration of a detector, Figure 3 is a diagram showing a transport control circuit, and Figure 4 is a diagram of Figure 3. It is a figure which shows the output signal waveform of each part. l-111 Original supply section 6----Conveyor belt 3
0.31--1 Detector 4 3--m-Level Detector Applicant: Canon Co., Ltd.

Claims (1)

[Claims] Sheet-shaped D; ξ exposed to light)? and a means for transporting the original 11° to the exposure position by this means.
, and a detection stage for detecting whether the direction of the original to be transported to tii'i is the direction of ρ1 or the road, and the li&detection stage Sheet manuscript recording, #J, device, which has a 4 yen mark for not recording when it detects that the orientation of the image is not correct.