JPH08185471A - Image reader - Google Patents

Abstract

(57) [Abstract] [Purpose] An image reading apparatus capable of reading a plurality of types of originals is to ensure that only the desired type of originals can be read. A single CCD3 line sensor 41 for photoelectrically converting a light image of a document illuminated by a single light source 2, an autochanger 3 as a document supporting device for setting one of a plurality of transparent documents at a reading position, and Film carrier 70
Have and. When the operation unit 62 is designated to use the film carrier, the controller 61 determines whether the document of the autochanger is mounted at the reading position 90, and if it is mounted, a warning for removing the document from the reading position. A message is displayed on the display unit 69, and if not removed by the user, the autochanger drive circuit 68 is driven to automatically remove the document from the reading position.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image reading apparatus for reading a plurality of kinds of originals, and more particularly, an image reading apparatus for reading a plurality of kinds of transparent originals held on a slide mount or the like and outputting them to a color copying machine or a host computer. Regarding the device.

[0002]

2. Description of the Related Art Conventionally, there has been no apparatus for reading a plurality of types of originals with one apparatus. Therefore, in order to read another type of original, it was necessary to use an image reading device that exclusively reads that type of original.

[0003]

Therefore, when an image reading apparatus capable of reading a plurality of types of originals is configured, when reading with a plurality of types of originals loaded, an optical image passes through an optical system of the same system. There is a problem that the images are overlapped even when only the desired document is read.

The present invention has been made in view of the above points, and an object of the present invention is to provide an image capable of surely reading only a desired type of original among a plurality of types of originals. To provide a reading device.

[0005]

To achieve the above object, the present invention provides a single illuminating means for illuminating a document placed in the optical path, and a light image of the document illuminated by the illuminating means. A single image pickup means for outputting an image signal by photoelectric conversion, and a single original selected from among the plurality of originals supported in the corresponding optical paths between the illumination means and the image pickup means. An image reading system having a plurality of document supporting means that can be sequentially mounted at a document reading position, and is allowed to mount only one document at a time in the entire optical path between the illuminating means and the imaging means. In the apparatus, a reading mode designating unit for selectively designating one document supporting unit to be used among the plurality of document supporting units, and a document on the document supporting unit is mounted at a document reading position in the optical path. Detection hand to detect According to the designation of the reading mode designating means, it is determined based on the output of the detecting means whether or not the document of the document supporting means other than the designated document supporting means is mounted at the document reading position in the optical path. And a warning unit for issuing a warning for removing a document of a document supporting unit other than the designated document supporting unit from the document reading position in response to an affirmative determination by the determining unit. Characterize.

Further, preferably, in one aspect of the present invention, the original document supporting means includes an original document ejection mechanism for ejecting an original document from the original document reading position.

As another aspect of the present invention, an automatic document automatically removing a document of a document supporting means other than the designated document supporting means in accordance with an affirmative judgment of the judging means from the document reading position. It can be characterized in that it has a discharging means.

As another aspect of the present invention, at least one of the plurality of document supporting means is preferably
It is possible to support the transparent original and mount the original at the original reading position.

As another aspect of the present invention, an optical path switching means for guiding the illuminating light from the illuminating means to the optical path of the designated document supporting means in accordance with the designation of the reading mode designating means is preferable. Drive means for moving the image pickup means to the image forming position of the original image of the designated original supporting means can be provided.

As another aspect of the present invention, an optical path switching means for guiding the illuminating light from the illuminating means to the optical path of the designated document supporting means in accordance with the designation of the reading mode designating means is preferable. It may be characterized by further comprising drive means for moving the designated document supporting means in order to move the image forming position of the document image of the designated document supporting means to the image pickup means.

[0011]

According to the present invention, when a plurality of types of originals are loaded at the same time, they are detected and a warning is given to the operator. This allows the operator to remove an undesired type of document. Further, an automatic discharge mechanism is provided so that an undesired type of document can be automatically discharged.

[0012]

Embodiments of the present invention will be described in detail below with reference to the drawings.

(First Embodiment) FIG. 1 shows the schematic arrangement of an image reading apparatus according to the first embodiment of the present invention. As shown in FIG. 1, the image reading apparatus 1 has an autochanger 3 as a first document support table and a film carrier 70 as a second document support table. The autochanger 3 holds a transparent original 35 mm film F, and the film carrier 70 supports a transparent original 4 × 5 inch film 71. The halogen lamp 2 is a light source as an illuminating means for illuminating the transparent original with illuminating light.
It is driven by a DC (direct current) power supply 67. A CCD (charge coupled device) three-line sensor 41 as a reading unit for reading an image of a transparent original is attached to the reading scanning body 40.

The light emitted from the halogen lamp 2 which is supplied with power from the DC power supply 67 is converted into the condenser lens 1.
1. When reading the 35 mm film F through the field lens 12, the optical film 80, the 35 mm film F at the reading position (hereinafter referred to as a reading unit) 90 is irradiated. The transmitted light of the film F passes through the imaging lens 13, the optical path c, and is guided by the reflecting mirror 21,
An optical image is formed on the CD3 line sensor 41, and the image is read by the CCD3 line sensor 41.

When reading the 4 × 5 inch film 71, the light generated from the halogen lamp 2 passes through the optical path d. Therefore, before that, the automatic changer drive circuit 6
The controller 8 controls the controller 61 to remove the 35 mm film F from the reading position 90, and stores the film in the storage section inside the autochanger 3. Further, the plunger drive circuit 69 is controlled by the controller 61 so that the plunger 52 rotates the reflecting mirror 20 to insert it into the optical path as shown by the broken line in FIG.
Switch to. As a result, the light guided to the optical path d is further reflected by the reflecting mirror 24 to the transparent original 7 of 4 × 5 inch film.
The light transmitted through the transparent original 71 is guided to the imaging lens 1
4 and further by the reflection mirror 22
Of the CCD 3 line sensor 41.

The CCD 3 line sensor 41 is composed of three line sensors provided with red (R), green (G) and blue (B) on-chip optical filters. Main scanning with each line sensor, 35mm
When the film is read, the reading scanning body 40 is sub-scanned by moving the reading scanning body 40 along the rail 30 in the vertical direction (direction of arrow a in the drawing) with respect to the main scanning direction.

On the other hand, when reading the 4 × 5 inch film 71, first, the stepping drive circuit 65 is controlled by the controller 61 to drive the stepping motor 50 to move the reading scanning body 40 along the rail 30. The CCD 3 line sensor 4 at the end position of the optical path d.
Move 1 Next, the main scanning is performed by the CCD 3 line sensor 41, and the sub-scanning is performed by the film carrier 70.
Is moved along the rail 31 in the vertical direction (direction of arrow b in the figure) with respect to the main scanning direction (direction of arrow e in the figure) on the 4 × 5 inch film 71 by the stepping motor 51. .

The image read by the CCD 3-line sensor 41 is an analog processing circuit 6 as an analog signal.
It is output to the external device 100 through the interface circuit (I / F) 66 after being output to the DC / DC converter 3, DC reproduced, amplified, A / D (analog / digital) converted, digitally processed by the digital processing circuit 64.

An operating section 62 having input keys and buttons for the operator to operate, and a display section 69 using a liquid crystal display or a CRT display for confirming the original and displaying the apparatus status. Are connected to the controller 61.

The tray 91 of the autochanger 3 is rotatably installed by an autochanger drive circuit 68, and a plurality of accommodating portions 93 are radially formed in the tray 91 at equal intervals around the center of rotation thereof. Storage section 93
One film F can be stored in the. Then, every time the operator presses the forward button (not shown) on the operation section 62 once, the tray 91 rotates the storage section 93 by one amount in the forward direction or the reverse direction, and moves to the supply section 92. Film F in 93
Are dropped into the reading unit 90.

Next, the warning procedure in the present invention will be described with reference to the flowchart of FIG. When a document is mounted on each of the two document support bases 3 and 70, a warning and a document automatic discharge are performed by the following operation procedure.

(Step S1) As an example, assume that the 35 mm film F is still set at the reading position 90 of the autochanger 3. The operator operates the operation button of the operation unit 62 (4 × 5 reading mode button)
When is input, this routine is entered and the mode is switched to the 4 × 5 reading mode (4 × 5 inch reading mode).

(Step S2) The controller 61 displays the following warning on the display unit 69. "Do not load 35mm film." Set the count number M to zero. Then, the process proceeds to step S3.

(Step S3) The presence of the 35 mm film F in the reading section 90 is detected by a sensor (not shown). When the detection is made, the process proceeds to step S5. However, at this time, the 35 mm film is used for the reading unit 9.
If it is not within 0, the process proceeds to step S4.

(Step S4) 4 × 5 inch film 7
Start reading 1.

(Step S5) The controller 61 displays the following warning on the display unit 69. "Remove the 35mm film from the autochanger." Then, move to step S6.

(Step S6) The controller 61 feeds the film in the autochanger 3 one frame. The count number M is incremented by 1. Then, the process proceeds to S7.

(Step S7) It is determined whether or not the count number M has reached the specified number L in the storage portion 93 of the tray 91 of the autochanger 3. If the counted number M has not reached the specified number L (one of the plurality of storage sections 93 in the tray 91 is empty in advance).
Return to 3. If the specified number has been reached (when none of the plurality of storage sections 93 in the tray 91 is empty), the process proceeds to step S8.

(Step S8) The controller 61 displays the following warning on the display unit 91. "Please remove one 35mm film from the autochanger."
Go to step S9.

(Step S9) Wait for a predetermined time for the operator to remove one film from the autochanger 3. Then, a reset button (not shown) on the operation unit 62 or 3
Wait until the 5 mm reading mode button (not shown) is pressed. When the reset button is pressed, the process returns to step S2. When the 35 mm reading mode button is pressed, the process proceeds to step S10.

(Step S10) The 35 mm film is read here.

(Second Embodiment) FIG. 3 shows the schematic arrangement of an image reading apparatus according to the second embodiment of the present invention. In FIG. 3, the same parts as those in FIG. 1 are designated by the same reference numerals, and detailed description thereof will be omitted. In the image reading apparatus 1 of the second embodiment,
The magazine 101 is composed of a film carrier 103 and a reading unit 102. A plurality of 35 mm films are loaded in the film carrier 103.
Then, the operator manually pushes the film carrier 103 to move the film to the position of the reading unit 102 frame by frame in the direction of arrow e in the figure. The other structure is similar to that of the first embodiment shown in FIG.

The warning procedure in the second embodiment in which the auto changer is not mounted in this way will be described below with reference to the flowchart of FIG.

(Step S11) As an example, it is assumed that the 35 mm film F is still set at the reading position 102 of the magazine. When the operator inputs the operation button (4 × 5 reading mode button) of the operation unit 62, this routine is entered to switch to the 4 × 5 reading mode.

(Step S12) The controller 61 displays the following warning on the display unit 69. “Please do not attach 35mm film.” Then, the process proceeds to step S13.

(Step S13) The presence of the 35 mm film F in the reading section 102 is detected by a sensor (not shown). If there is such a detection, step S1
Go to 5. However, if there is no 35 mm film in the reading unit 102 at this time, the process proceeds to step S14.

(Step S14) The reading of the 4 × 5 inch film 71 is started.

(Step S15) The controller 61 displays the following warning on the display unit 69. "Please remove the 35mm film." Next, move to step S16.

(Step S16) Wait for a predetermined time for the operator to remove the 35 mm film from the reading section 102 of the film carrier 103. Then, the process waits until the reset button (not shown) or the 35 mm reading mode button (not shown) on the operation unit 62 is pressed. If the reset button is pressed, the process returns to step S12. When the 35 mm reading mode button is pressed, the process proceeds to step S17.

(Step S17) The 35 mm film is read here.

(Other Embodiments) In the above-described embodiment of the present invention, only the transparent original is illustrated, but the present invention can be applied to an apparatus capable of reading both a transparent original and a reflective original. Further, it can be applied to other types of documents such as microfiche as a transparent document.

[0042]

As described above, according to the present invention,
When multiple types of originals are present in the image reading device at the same time, it is detected and a warning is given to remove the originals other than the desired one so as not to hinder the reading of the original by the operator. Since it is also possible to automatically eject documents,
It is possible to improve the operability of the operator and surely read only a desired type of original among a plurality of types of originals.

[Brief description of drawings]

FIG. 1 is a configuration diagram showing a schematic configuration of an image reading apparatus according to a first embodiment of the present invention.

FIG. 2 is a flowchart showing a warning procedure according to the first embodiment of the present invention.

FIG. 3 is a configuration diagram showing a schematic configuration of an image reading apparatus according to a second embodiment of the present invention.

FIG. 4 is a flowchart showing a warning procedure according to the second embodiment of the present invention.

[Explanation of symbols]

 1 Image Reading Device 2 Halogen Lamp as Light Source 3 Auto Changer 14 Imaging Lens 20 Reflecting Mirror 24 Reflecting Mirror 41 CCD3 Line Sensor 40 Scanning Scanning Body 51 Stepping Motor 61 Controller 62 Operation Section 68 Auto Changer Driving Circuit 69 Display Section 70 Film Carrier 71 4 × 5-inch film 80 Optical filter 90 Reading unit (reading position) 91 Tray 92 Supply unit 93 Storage unit 101 Magazine 102 Reading unit 103 Film carrier

Claims (6)

[Claims] 1. A single illuminating means for illuminating an original mounted in an optical path, and a single image pickup means for receiving an optical image of the original illuminated by the illuminating means and outputting an image signal by photoelectric conversion. , A plurality of originals which are capable of supporting a plurality of originals and sequentially mounting one selected original at the original reading positions in the corresponding optical paths between the illumination means and the image pickup means 1 is used in the plurality of document supporting means in an image reading apparatus having a configuration that allows mounting of only one document at a time in the entire optical path between the illuminating means and the imaging means. A reading mode designating unit for selectively designating the document supporting unit of the table, a detecting unit for detecting that the document of the document supporting unit is mounted at the document reading position in the optical path, and a designating unit for the reading mode designating unit. Accordingly Based on the output of the detection means, it is determined whether or not a document of a document support means other than the designated document support means is mounted at the document reading position in the optical path, and a positive determination of the determination means. And a warning unit for issuing a warning for removing a document on a document supporting unit other than the designated document supporting unit from the document reading position. 2. The image reading apparatus according to claim 1, wherein the document supporting unit has a document discharging mechanism that discharges a document from the document reading position. 3. An automatic document discharging unit for automatically removing a document of a document supporting unit other than the designated document supporting unit in response to an affirmative judgment of the judging unit, from the document reading position. Item 2. The image reading device according to item 2. 4. The document according to claim 1, wherein at least one of the plurality of document supporting units supports a transparent document and mounts the document at the document reading position. Image reading device. 5. An optical path switching means for guiding the illumination light from the illuminating means to the optical path of the designated document supporting means according to the designation of the reading mode designating means, and a document image of the designated document supporting means. 5. The image reading apparatus according to claim 1, further comprising a driving unit that moves the image pickup unit to the image forming position. 6. An optical path switching unit that guides the illumination light from the illumination unit to the optical path of the designated original document supporting unit according to the designation of the reading mode designating unit, and an original image of the designated original document supporting unit. 5. The image reading apparatus according to claim 1, further comprising a driving unit that moves the designated original document supporting unit to move the image forming position of the image forming unit to the image capturing unit.