JP2706785B2 - Image reading device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reading device that reads both sides of a document.

[Related Art] Conventionally, there has been an apparatus for reading both sides of a document.

The apparatus has a changeover switch for switching between a double-sided reading mode for reading both sides of a document and a single-sided reading mode for reading one side of a document.

[Problems to be Solved by the Invention] However, in the conventional apparatus, switching between the double-sided reading mode and the single-sided reading mode during reading of a plurality of originals is not performed, so that images are recorded on both sides of the original. Even when a two-sided original and a one-sided original having an image recorded on one side of the original are mixed, there is a waste of setting and using the double-sided reading mode and reading the back of the one-sided original.

Therefore, a reading device capable of switching between a double-sided reading mode and a single-sided reading mode while reading a plurality of documents is conceivable.

When the image read by this device is transmitted by a facsimile device or stored in a storage device, the operator may want to know the number of originals on which the reading mode has been switched. is there.

SUMMARY OF THE INVENTION An object of the present invention is to provide a reading apparatus which can switch between a double-sided reading mode and a single-sided reading mode during reading of a plurality of originals and outputs a report indicating which number of originals the reading mode has been switched. The purpose is to provide.

Means for Solving the Problems The present invention provides a reading unit for reading both sides of a document, and one of a two-sided reading mode in which the reading unit reads both sides of the document and a single-sided reading mode in which one side of the document is read. Selecting means for selecting, switching means for switching between the double-sided reading mode and the single-sided reading mode during reading of a plurality of documents in response to the selection of the selecting means, and causing the reading means to read the document, Output means for outputting, to a report, a history of switching of the reading mode in which one document has been read.

Embodiment FIG. 1 is a block diagram showing an outline of a facsimile apparatus 1 according to one embodiment of the present invention.

The facsimile apparatus 1 includes a reading device 2 capable of reading both sides of a document, a recording device 3 capable of recording both sides of a recording sheet, and the reading device 2 and the recording device 3.
And a controller 4 for switching between a double-sided processing mode and a single-sided processing mode. Further, the controller 4 is connected to a communication network 6 via a communication control device 5 having a built-in modem and DSU (home data line terminating device).

FIG. 2 is a flowchart showing basic operations of transmission, reception, and copying in the double-sided processing mode in the facsimile machine 1.

First, a facsimile operation mode is designated in a state where the duplex processing mode is set (S10). When the transmission mode is designated (S11), the reading device 2 reads both sides of the document (S12), the read data is converted into predetermined transmission data by the communication control device 5, and transmitted to the other party facsimile device (S11). S13). Here, data can be transmitted simultaneously on both sides by using a two-channel communication interface, or can be transmitted one by one by using a one-channel communication interface.

Then, the above operations are sequentially performed on the set originals, and transmission of all the originals is completed (S14).
The process ends.

Also, in S11, when the copy mode is specified,
The reading device 2 reads both sides of the original (S15), and the read data is recorded on both sides of the recording paper by the recording device 3 (S1).
6). When copying of all originals is completed (S
17), end the process.

Further, at the time of data reception, the communication control device 5 receives data from the outside (S18), converts the received data into image data by the controller 4 and converts the data into recording data. Recording is performed on both sides of the paper (S19). Then, the process ends when the reception is completed (S20).

 FIG. 3 is a side view showing the configuration of the reading device 2.

The reading device 2 has a configuration in which originals 7 are sequentially stacked from the bottom and set on an original platen. This reading device 2
An ADF unit 8 including a separation roller and a paper feed roller; a document reading unit 9 for reading both sides of the document 7; and a discharge roller for supplying the document 7 discharged from the document reading unit 9 to a discharge tray 11. With 10.

The document reading unit 9 includes two contact-type image sensors (hereinafter, referred to as contact sensors) opposed to the front and back surfaces of the document 7.
12 and 13, these contact sensors 12, 13
13, the image written on both sides of the original 7 is read at one time. Each of the contact sensors 12 and 13 is a contact sensor that reads the surface of the document 7, that is, the contact sensor 12 disposed on the lower side in this example is disposed at a position where the document 7 reaches earlier than the other contact sensor 13. ing.

FIG. 4 is a flowchart showing the operation of such a reading device 2.

If there is a reading instruction from the controller 4 (S21), the ADF unit 8 conveys the original 7 to the original reading unit 9 (S2).
2). When the document 7 reaches the front contact sensor 12 (S23), the reading of the document on this front surface is started (S24). Also, the original 7 is attached to the contact sensor 13 for the back side.
Is reached (S25), reading of the original on the back side is started (S26).

When the reading of both sides is completed (S27), the read original 7 is stacked on the discharge tray 11 (S28).

When the above operation is repeated and the manuscript 7 is exhausted on the manuscript table (S29), a buzzer is sounded and a message is displayed to notify the end of the work (S3).
0), the document reading operation ends.

 FIG. 5 is a side view showing another example of the reading device.

The reading device 2a has a configuration in which the originals 7 are stacked and set in order from the top, and includes an ADF unit 8a, an original reading unit 9a,
The document 7 includes a paper discharge roller 10a, and the document 7 is turned over by the guide 14 and discharged to the paper discharge tray 11a. In this case, in the document reading section 9a, a contact sensor 12a for reading the front surface of the document 7 is arranged above, and a contact sensor 13a for reading the back surface of the document 7 is arranged below. Also in this example, the contact sensor 12a for the front surface is disposed at a position where the document 7 reaches the contact sensor 13a for the back surface first. Then, both sides of the document 7 are read in the same manner as the operation shown in FIG.

FIG. 6 is a plan view showing the configuration of the operation unit of the facsimile machine 1.

The operation unit 15 includes a display unit 16, a numeric keypad 17, a one-touch key 18, a start key 19, a stop key 20, and the like.

By the way, in the facsimile apparatus 1, when a document has information on only one side, a mode designating switch 2 provided in a mode setting unit described later is used.
By the operations of steps 5 and 26, the mode is appropriately switched from the double-sided processing mode to the single-sided processing mode, and reading and recording of only one side can be performed.

The operation of the reading apparatus 2 in the double-sided mode is to operate the two contact sensors 12 and 13 to read both sides of the document 7 at a time as shown in FIG. It is effective that the original is read by the contact sensor 12 that arrives first,
By not operating the other contact sensor 13 or ignoring information from this contact sensor 13, only the front side of the document 7 is read.

FIG. 7 is a flowchart for explaining the procedure when such a double / single-side processing mode is designated.

In this embodiment, the facsimile operation is designated (FIG. 2: S
At the time of 10), each mode of density, resolution, double-sided / single-sided reading, and double-sided / single-sided recording is set. In this example, as defaults, density = normal, resolution 200 dpi, reading = both sides, and recording = both sides are set (S31).

This setting can be designated by the changeover switches 23 to 26 of the mode setting section shown in FIG. 8, and the LED indicators 27 to 3 provided corresponding to these changeover switches 23 to 26 are provided.
It is displayed by 4.

The first changeover switch 23 is used to specify the resolution. When the LEDS indicator 27 is lit, 200 dpi is specified, and when the LED indicator 28 is lit, 400 dpi is specified.

The second changeover switch 24 is used to designate the density, and is normally designated when the LED indicator light 29 is lit, and dark is designated when the LED indicator light 30 is lit.

Further, the third changeover switch 25 is for designating double-sided / single-sided reading. When the LED indicator 31 is lit, the double-sided reading mode is designated, and when the LED indicator 32 is lit, single-sided reading is performed. The mode is specified.

Further, the fourth changeover switch 26 is provided for both sides in recording.
The single-sided recording mode is designated with the LED indicator light 33 turned on, and the single-sided recording mode is designated with the LED indicator light 34 turned on.

Next, when it is desired to change the setting in S31, the setting is changed by operating the changeover switches 23 to 26 (S32). When this setting is changed, the lighting of the LED indicator is switched (S3
3) Specify the operation mode (transmission, copy, reception) (S34). If there is no change in the settings, the operation mode is specified in the default state. The switching of the setting and the like may be displayed not only on the LED display lamp but also on the display unit 16.

FIG. 9 is a circuit diagram showing a control circuit of the contact sensors 12 and 13.

In this example, in the one-sided reading mode, the operation of the contact sensor 13 for the back surface is controlled.

Each of the contact sensors 12 and 13 is provided with an operation restricting terminal for restricting these operations. The operation regulating terminal of the contact sensor 13 for the back side is a DC power supply (not shown), a current limiting resistor 35, an LED indicator light 31, a changeover switch 25, and an LED indicator light 31 of a DC circuit composed of a ground. And the changeover switch 25. Then, by closing the changeover switch 25, the LED indicator 31
Is energized to light up, the operation regulating terminal of the contact sensor 13 for the back surface is grounded, and the contact sensor 13 is enabled. By releasing the changeover switch 25, a positive voltage is applied to the operation regulating terminal of the contact sensor 13 for the back surface, and this contact sensor
Thirteen operations are restricted. On the other hand, the operation restricting terminal of the contact sensor 12 for the front surface is directly grounded, and the contact sensor 12 is always enabled.

Further, instead of directly controlling the contact sensor 13, the output of the contact sensor 13 may be ignored by the controller 4 to read only one side. FIG. 10 is a circuit diagram showing a control circuit in this case. The operation restricting terminals of the contact sensors 12 and 13 are both grounded, and the connection point between the LED indicator 31 and the changeover switch 25 is led to the controller 4 side. Also in this example, the controller 4 detects opening and closing of the changeover switch 25, and based on the detection result, a contact sensor for the back surface.
By controlling the output of 13, it is possible to switch between the double-sided reading mode and the single-sided reading mode.

Further, in the facsimile apparatus of this embodiment, switching between the double-sided reading mode and the single-sided reading mode is performed during the reading operation, and it is possible to switch between reading both sides or reading only one side for each page of the document. .

FIG. 11 is a flowchart showing an outline of the read mode switching operation during this read operation.

In this example, by periodically scanning the state of the changeover switch 25 (S40), it is detected whether or not the reading mode has been switched (S41). When the reading mode is switched, the reading mode is switched in accordance with the timing to start reading the physical page of the document (S42).
This operation makes it possible to switch the reading mode for each physical page.

When the reading mode is switched, the LED indicator 3
The display of 1 and 32 is switched (S43).

If the start key 19 has already been pressed at the time when the reading mode has been switched (S44), the display unit 16 indicates on which physical page the original document has been switched to the reading mode. Yes (S45).

FIG. 12 is a flowchart more specifically showing the above-described read mode switching operation.

As in FIG. 11, the changeover switch 25 is scanned (S5
0), if there is a read mode switching instruction (S5
1), the flag corresponding to the designated reading mode is turned on (S52). Next, after the display unit 16 displays that the reading mode is to be switched (S53), when the original is being read (S54), the process waits until the reading of the next page starts, and the reading of the current page is started. At the end, the reading mode is switched according to the flag turned on in S52 (S55).

In the control circuit shown in FIG. 9, the output of the changeover switch 25 is directly connected to the regulating terminal of the contact sensor 13. However, the operation of FIGS.
A switching circuit (not shown) is provided between the control terminal and the regulating terminal of the contact sensor 13, and the switching circuit can be controlled by controlling the switching circuit by a controller.

As described above, in the facsimile apparatus, the reading device is provided with the function of reading both sides of the document, so that the document having image information on both sides can be read at a time. Therefore, this eliminates the need for copying and sending both sides of the document one by one, and also eliminates waste of paper.

In addition, the number of times of document conveyance during transmission is reduced, the power consumption of the apparatus, the number of failures, and the like can be reduced, and the durable years can be further extended.

Further, as in the above embodiment, the facsimile apparatus
By having a channel communication line, both sides of the document can be transmitted simultaneously, and the transmission time can be reduced.

Further, by providing a means for instructing the double-sided / single-sided reading mode, the single-sided mode can be designated to be used similarly to the conventional facsimile apparatus,
For example, if the original is created using paper that has been copied on one side, even if you do not want to read this one side, you can specify only the required side and read it. It is extremely effective.

Further, since the selection of the double-sided / single-sided reading mode by the instruction means can be performed for each physical page of the document during the reading operation of the document, for example, even when the single-sided document and the double-sided document are mixed, the reading is performed. By appropriately switching the modes and combining the two reading modes, the reading process can be performed efficiently. Further, even when transmission is started by selecting a wrong reading mode, the reading mode can be switched halfway.

Further, in the above embodiment, the selection of the double-sided / single-sided reading mode is performed for each physical page of the document, but the double-sided / single-sided reading mode may be switched for each page of the document.

In addition, in S45 of FIG. 11, when displaying the switching state of the duplex / simplex reading mode, a “duplex / simplex reading management report” as shown in FIG. 13 may be output.

In the “double-sided / single-sided reading management report” of this embodiment,
Original 1 until the start key 19 is pressed first
Data such as the reading mode, the total number of planes, and the number of transmission planes for each sheet are collectively displayed. Thus, the operator can confirm whether the selection and switching of the reading mode intended by the operator have been properly performed.

In addition, by this "double-sided / single-sided reading management report",
It is possible to know the details of the transmission status of the original, and for example, when a jam occurs during transmission, it is possible to clearly determine which original should be resent.

It should be noted that the present invention is not limited to the above embodiment, and various modifications are possible.

For example, instead of using a contact sensor in the reader, an optical image sensor of a lens, a mirror, and a CCD may be used.

In the above embodiment, both the reading device and the recording device are provided with the double-sided processing function. However, a sufficient effect can be obtained when only the reading device is provided with the double-sided processing function.

According to the present invention, one of a double-sided reading mode for reading both sides of a document and a single-sided reading mode for reading one side of a document is selected, and a plurality of documents are read according to the selection. During the switching between the two-sided reading mode and the one-sided reading mode, a history of switching between the reading modes in which a plurality of documents have been read is output to a report. Even when a single-sided document with an image recorded thereon is mixed, it is possible to appropriately switch between the double-sided reading mode and the single-sided reading mode according to each document while reading a plurality of documents. Scanning in both-sided reading mode and scanning up to the back of a single-sided document can be prevented. This has the effect of letting you know if you have been.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an outline of a facsimile apparatus according to one embodiment of the present invention. FIG. 2 shows a facsimile apparatus according to the embodiment.
9 is a flowchart illustrating basic operations of transmission, reception, and copying in a double-sided processing mode. FIG. 3 is a side view showing the configuration of the reading device of the facsimile apparatus according to the embodiment. FIG. 4 is a flowchart showing the operation of the reading apparatus shown in FIG. FIG. 5 is a side view showing another example of the reading device. FIG. 6 is a plan view showing a configuration of an operation unit of the facsimile apparatus according to the embodiment. FIG. 7 is a flowchart for explaining a procedure in the case of designating the duplex / simplex processing mode in the embodiment. FIG. 8 is a plan view showing a changeover switch and an LED indicator of a mode setting unit provided in the facsimile apparatus according to the embodiment. FIG. 9 is a circuit diagram showing a control circuit of a contact sensor in the facsimile apparatus according to the embodiment. FIG. 10 is a circuit diagram showing another example of the control circuit of the contact sensor. FIG. 11 is a flowchart showing an outline of the read mode switching operation during the reading operation. FIG. 12 is a flowchart showing the switching operation of the reading mode more specifically. FIG. 13 is a plan view showing a display example of the display unit at the time of switching. 1 facsimile device 2, 2a reading device 3, recording device 4, controller 5, communication control device 6, communication network 7, original, 9, 9a original reading Units, 12, 12a, 13, 13a: Contact sensors, 23 to 26: Changeover switches, 27 to 34: LED indicators.

Claims (1)

(57) [Claims] Reading means for reading both sides of a document; selecting means for selecting one of a double-sided reading mode in which the reading means reads both sides of the document and a single-sided reading mode in which one side of the document is read; Switching means for switching between the double-sided reading mode and the single-sided reading mode during reading of a plurality of originals in accordance with the selection of the selecting means and causing the reading means to read the original; and reading the plurality of originals. Output means for outputting a history of reading mode switching to a report.