JPH11187215A - Hand scanner - Google Patents

Abstract

(57) [Summary] [PROBLEMS] In a hand scanner as an image information reading apparatus, reading of image information is performed based on white, but a white reference is a dedicated white reference plate or blank paper.
The independent dedicated white reference plate is easily lost, and the white reference setting is not accurate for blank paper, which has affected the image quality read by the scanner body. A dedicated white reference plate (6) used for setting a white reference of a scanner is provided on a portion of the protective cover (3) corresponding to a reading glass (5) of the scanner body. It is not necessary to prepare a dedicated white reference plate or blank paper separately for the white reference setting of the hand scanner,
The dedicated white reference plate is not lost, the white reference setting is accurate, and the read image quality is always good.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hand scanner which is a relatively small and portable image information reading device for personal computer peripherals and facsimile machines.

[0002]

2. Description of the Related Art In recent years, in a hand scanner or a facsimile hand scanner as a personal computer peripheral, image information is read on the basis of white, but the white reference is a personal computer or a facsimile using a dedicated white reference plate or blank paper. It is stored in the storage unit of the main body or the hand scanner.

[0003] The white reference setting of a conventional hand scanner will be described below. FIG. 4 shows the setting of the white reference using a dedicated white reference plate or blank paper. In the figure, reference numeral 1 denotes a scanner main body, and 2 denotes a dedicated white reference plate or blank paper.

To set the white reference of the hand scanner, first, a dedicated white reference plate or white paper 2 is placed on a flat desk. Next, the operation is performed by placing the scanner main body 1 thereon and operating the personal computer, the facsimile main body, or the scanner main body 1, and storing the white reference of the scanner main body 1 in the storage section of the personal computer, the facsimile main body, or the scanner main body 1.

[0005]

However, when an independent white reference plate is used for setting the white reference of the hand scanner, there is a problem that the white reference plate is lost because it is stored separately from the scanner body. Further, when blank paper is used, there is a problem that the image quality read by the scanner main body is affected because the white reference setting is not accurate depending on the type and material of the paper selected by the user.

An object of the present invention is to provide a hand scanner which can set a white reference without using a dedicated white reference plate or blank paper separately.

[0007]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention comprises a protective cover which can be attached to a scanner main body and protects the reading section corresponding to a reading section of the scanner main body in the protective cover. A hand scanner having a dedicated white reference plate used for setting the white reference of the scanner is provided in the portion to be scanned.

According to the present invention, it is possible to provide a hand scanner capable of setting a white reference without using a dedicated white reference plate or blank paper separately.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS According to the first aspect of the present invention, there is provided a storage section for optically reading an original and storing image information, a power supply for holding the image information stored in the storage section, A portable hand scanner having a control unit capable of inputting image information stored in the storage unit to another device, including a protective cover detachable to a scanner main body, and a reading unit of the protective cover This is a hand scanner provided with a dedicated white reference plate necessary for setting the white reference in the portion corresponding to the above.The protective cover protects the scanner main body and has the effect that the white reference can be set well when attached to the scanner main body .

An embodiment of the present invention will be described below with reference to the drawings. (Embodiment 1) FIG. 1 is a perspective view of a hand scanner according to Embodiment 1 of the present invention, FIG. 2 is a perspective view of a protective cover of the hand scanner, and FIG. 3 is a cross-sectional view of the hand scanner with the protective cover attached. It is. In these drawings, the same components as those of the conventional example shown in FIG. 4 are denoted by the same reference numerals.

As shown in the figure, the hand scanner comprises a scanner main body 1 and a protective cover 3 attached to the scanner main body 1. The scanner body 1 includes a storage unit for optically reading a document therein and storing image information, a power supply for holding the image information stored in the storage unit, and a storage unit for storing image information stored in the storage unit. It has a configuration (not shown) having a control unit capable of inputting to the device of the present invention, and is configured to be portable. The reading glass 5 is provided horizontally below.

The protective cover 3 has an L-shaped cross section which covers one side including the lower part of the scanner main body 1, and the lower plate 4 is located below the reading glass 5. An exclusive white reference plate 6 is provided on the inner surface of the lower plate 4.

In the hand scanner having the above-described configuration, the protective cover 3 is removed at the time of use, and the protective cover 3 is attached at the time of non-use to protect the reading glass 5 which is the image information reading section of the scanner body 1.

When the protective cover 3 is mounted on the scanner main body 1, the protective cover 3 has a dedicated white reference plate 6 located below the reading glass 5 of the scanner main body 1. The white reference of the scanner main body 1 can be set using the reference plate 6.

Therefore, there is no need to separately prepare a dedicated white reference plate or a blank sheet for setting the white reference of the hand scanner, and the dedicated white reference plate is not lost. Also,
Since a dedicated white reference plate is used instead of blank paper, the white reference setting is accurate, and the read image quality is always good.

[0016]

As is apparent from the above description, according to the present invention, since the dedicated white reference plate is provided integrally with the protective cover of the hand scanner, another white reference plate can be used for setting the white reference of the hand scanner. It is possible to realize an excellent hand scanner that can perform a good white setting without using blank paper.

[Brief description of the drawings]

FIG. 1 is a perspective view of a hand scanner according to a first embodiment of the present invention.

FIG. 2 is a perspective view of a protective cover of the hand scanner.

FIG. 3 is a cross-sectional view of the hand scanner equipped with the protective cover.

FIG. 4 is a perspective view of a conventional hand scanner in a white reference setting state.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Scanner main body 3 Protective cover 4 Lower plate 5 Reading glass 6 Exclusive white reference plate

Claims (1)

[Claims] A storage unit for optically reading a document and storing image information; a power supply for holding the image information stored in the storage unit; and a storage device for transferring the image information stored in the storage unit to another device. A portable hand scanner having a control unit capable of inputting, comprising a protective cover detachable on the scanner body, and a dedicated white standard necessary for setting a white standard in a portion corresponding to a reading unit of the protective cover. A hand scanner comprising a plate.