JPH11177784A - Slip reading method and scanner device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To apply value-addition such as ADF, printing processing and slip sorting processing by adopting the style of original move and mounting a reduced optical system for providing stable image extraction. SOLUTION: Concerning a scanner device with which the slip is read by moving the slip via slip guide carrier systems 41-45, a reading section 46 of the slip guide carrier systems 41-45 is composed of materials having high optical transparency, and the slip is read by a fixedly arranged reduced optical system 49. Furthermore, the transparency can be maintained by cleaning the reading section at an arbitrary time (through a cleaning mechanism 47).

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a form reading method and a scanner.

[0002]

2. Description of the Related Art A conventional image scanner apparatus has a form of moving a document using a contact sensor, a CCD,
There are two types of modes in which an original is read by moving a reduction optical system including a lens or the like.

[0003] The former is a portable type for popular machines,
The latter is often used for business use in desktop or stand-alone systems. In particular, the latter may take the form of automatic paper feeding using the ADF.

[0004]

A spreader that takes the form of moving a document is a low-speed process because of the use of a close contact sensor, and is not suitable for batch processing as a specification. There are restrictions such as adding and distributing forms. In addition, for high-end machines that take the form of moving the reduction optical system, only batch processing is satisfied by using the ADF.
It does not satisfy the other specifications described above.

The present invention has been made in view of the above circumstances, and has a reduction optical system which takes a form of document movement and provides stable image extraction, and performs ADF, printing processing, form sorting processing, and the like. It is an object of the present invention to provide a form reading method and a scanner device having added value.

[0006]

SUMMARY OF THE INVENTION A form reading method according to the present invention is a scanner device for reading a form by moving the form through a form guide and transport system. The document is read by a reduction optical system fixed and arranged. Further, it is also characterized in that the reading portion is cleaned at an arbitrary point to maintain the transparency.

A scanner device according to the present invention includes a form guide and transport mechanism for guiding a moving form, an optically transparent member which is mounted by being urged to read the form guide and transport mechanism, and a form guide and transport mechanism. A reduction optical system fixedly arranged for reading a form passing through the reading portion. Further, it is characterized by further comprising a cleaning mechanism for sweeping the reading surface by moving in the main (sub) scanning direction.

As a result, the image can be stably processed, miniaturization and cost reduction can be realized at the same time, and added value enabling batch processing, printing processing, and form sorting processing can be added.

[0009]

1 is an external view of a scanner device according to the present invention, FIG. 2 is an internal configuration of the scanner device, and FIG. 3 is a diagram showing the interior of the scanner device body by rotating the scanner device body around a hinge mechanism. It is a figure showing the state where it opened. As is clear from the figure, the scanner device of the present invention has a paper feed unit 3, a power supply unit 11, a base unit 1 including a control unit (PCB 12) substrate fixed, and a scan device main body 2 including stackers 4 and 5 hinged. A shell configuration that is rotatable about the mechanism 4 is employed. The scanner device main body 2 includes a transport system 21, a reading unit 22, and a printing unit 23. Details of each will be described later. It should be noted that the reading unit 22 shown in a circle in FIG.
The periphery is the main part of the present invention.

FIG. 4 is an enlarged view of a main part of the present invention. In the figure, 41 is a driving roller for conveying a form,
42 is a conveyance guide for guiding the form, 43 is a paper feed roller,
44 is a separator, and 45 is a reading guide.
Numeral 46 denotes a member made of a material having high optical transparency added according to the present invention, which is mounted on the reading guide 45 and here, it is assumed that hard transparent glass is used. In addition, an acrylic material or a polycarbonate material, which has a high transmittance and is difficult to refract light, may be used. These four
The form guide transport system is constituted by 1 to 46.

Reference numeral 49 denotes a reduction optical system, as shown in FIG. 5, a fluorescent lamp 491, a reflection mirror 492, and an optical lens 49.
3. It is composed of a CCD sensor 494. In the figure, 41-
Reference numeral 44 denotes a form guide and transport system, which includes a form drive roller, a transport guide, a paper feed roller, and a separator. Since the configuration of the reduction optical system is not different from the conventional one, detailed description is omitted.

As described above, in the present invention, the hard transparent glass 36 is biased and mounted on the reading guide 45 via the holding mechanism (not shown). The reading unit 22 secures a stable transport gap in order to stably provide a color image, and prevents the three-wavelength image from being affected by the deformation and warpage of the form. By urging the hard transparent glass 46 to the reading unit 22, the image can be stabilized, but a cleaning mechanism is required from a long-term view. That is, a cleaning mechanism including, for example, a brush mechanism 47 and a brush drive system 48 is required between the reading unit 22 and the reduction optical system 49.

FIGS. 6 to 8 are views showing examples of the structure of the above-described cleaning mechanism. The example shown in FIG.
The cleaning unit 37 is attached to the
The position of the cleaning brush 37 retracted out of the effective visual field is recognized by the control unit (not shown) by the sensor 62, and the trickle emitted from the control unit within the effective visual field of the hard transparent glass 46 in the main scanning direction. The cleaning brush 61 is reciprocated a specified number of times to any one of the evacuation places to remove dust and the like adhering to the hard transparent glass 46. In the figure, 63 and 64 are drive systems for the cleaning brush, which are a drive control motor and an idler roller, respectively. The cleaning brush may be replaced with a suction duct using a vacuum.

FIG. 7 shows a driving system of the cleaning brush.
In the figure, a clutch mechanism indicated by 71 is used, and the rotational force transmitted from the drive motor 63 is transmitted in the sub-scanning direction by the clutch 71 which repeats normal rotation and reverse rotation every rotation, and is hard transparent. This removes dust and the like attached to the glass 46. FIG. 8 shows an example in which the hard transparent glass 46 is reciprocated by the push-pull solenoid 81 in the sub-scanning direction. At this time, since the hard transparent glass 46 has a movable configuration, the cleaning brush 47 is naturally fixedly arranged.

The timing at which the cleaning mechanism operates is, for example, performed when the apparatus is started up, at the beginning or end of each processing batch, or when an abnormal state of the apparatus is detected. By selecting and instructing these from a control unit (not shown), the cleaning scan is repeated, and stable image acquisition over a long period of time becomes possible.

[0016]

As described above, according to the present invention, the reading portion in the form guide / transport system is made of a material having high optical transparency, and the form is read by the fixedly arranged reduction optical system. , The transparency is maintained by cleaning the reading portion at any time, thereby stably processing the image, realizing miniaturization and low cost at the same time, batch processing,
It is possible to add an added value that enables printing processing and form sorting processing.

[Brief description of the drawings]

FIG. 1 is a diagram showing an external structure of a scanner device of the present invention.

FIG. 2 is a diagram showing an internal configuration of the scanner device of the present invention;

FIG. 3 is a view showing a shell structure of the scanner device of the present invention;

FIG. 4 is a diagram showing details of the vicinity of a reading unit of the scanner device of the present invention;

FIG. 5 is a diagram showing an embodiment of a reduction optical system used in the present invention;

FIG. 6 is a view showing one embodiment of a cleaning mechanism used in the present invention;

FIG. 7 is a diagram showing an embodiment of a cleaning mechanism used in the present invention,

FIG. 8 is a view showing an embodiment of a cleaning mechanism used in the present invention;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Base, 2 ... Scanner main body, 3 ... Paper feed part, 4 ... Hinge mechanism, 5, 6 ... Discharge stacker, 11 ... Power supply part, 1
2 ... control unit, 22 ... reading unit, 41 ... drive system roller,
42: conveyance guide, 43: paper feed roller, 44: separator, 45: reading guide, 46: hard transparent glass, 47: cleaning brush, 48: drive control motor, 49: reduction optical system, 61: pulley, 62 ... Position sensor, 63: drive motor, 64: idler roller, 71
... clutch mechanism, 81 ... push-pull solenoid, 49
Reference numeral 1 denotes a fluorescent lamp, 492 denotes a reflection mirror, 493 denotes an optical lens, and 494 denotes a CCD sensor.

Claims (7)

[Claims] 1. A scanner device for reading a form by moving the form via a form guide / transport system, wherein a reading portion of the form guide / transport system is made of a material having high optical transparency and is fixedly arranged. A form reading method using a reduced optical system. 2. The form reading method according to claim 1, wherein the reading portion is cleaned at an arbitrary point to maintain the transparency. 3. A form guide / conveying mechanism for guiding a moving form, a member having high optical transparency which is mounted by being urged to the form guiding / conveying mechanism at a reading portion, and a form passing through the reading portion of the form guiding / conveying mechanism. And a reduction optical system fixedly arranged to read the image. 4. The scanner device according to claim 3, further comprising a cleaning mechanism for sweeping a reading surface by moving in a scanning direction. 5. The cleaning mechanism according to claim 1, wherein the cleaning mechanism comprises a clutch that repeats normal rotation and reverse rotation every rotation of the motor, and sweeps a reading surface by reciprocating operation in a sub-scanning direction by a brush attached to the motor. The scanner device according to claim 4. 6. A cleaning mechanism comprising: a brush fixed on an optically transparent member constituting a reading surface; and a driving mechanism connected to the member and reciprocating in a sub-scanning direction by a magnetic force. 5. The scanner device according to claim 4, further comprising: 7. The scanner according to claim 4, wherein the cleaning mechanism includes a vacuum mechanism which moves in the main scanning direction while adsorbing the optically transparent member surface constituting the reading surface. apparatus.