JP4449855B2 - Scanner - Google Patents

Description

  The present invention relates to a scanner including a document reading sensor that reads a document.

  2. Description of the Related Art Conventionally, a flat bed type scanner including a document table on which a document is placed and a line-shaped document reading sensor that reads a document movably provided along the lower surface of the document table has been used. The document reading sensor includes a light emitting unit that irradiates light to the document and a light receiving unit that receives light reflected from the document. For example, in the document reading sensor, a light emitting unit is a fluorescent tube and a light receiving unit is a CCD (Charge Coupled Device) CCD type sensor or a light emitting unit is an LED (Light Emitting Diode), and a light receiving unit is a CMOS (Complementary Metal). There is a CIS (Contact Image Sensor) type sensor composed of an oxide semiconductor (Oxide Semiconductor). The document reading sensor reads a document based on a light reception signal from the light receiving unit.

The original reading sensor reads one line at a time from the original reading start position, that is, the original reading origin, in the main scanning direction, and moves in the sub scanning direction along the lower surface of the original table to read the original placed on the original table. . Here, it is necessary for the user to know the original reading origin, that is, the reference position on which the original is placed (hereinafter referred to as the original placement reference position). In order to allow the user to visually recognize the document placement reference position, there is known a scanner in which a mark indicating the document placement reference position is attached to the housing in the vicinity of the document placement reference position. There is also known a scanner in which a seal indicating the original placement reference position is stretched on the housing in the vicinity of the original placement reference position (see, for example, Patent Document 1). Furthermore, there is known a scanner provided with an LED lamp that is installed in a housing in the vicinity of a document placement reference position and indicates the document placement reference position.
JP 2001-61025 A

  However, in a scanner with a stamp indicating the document placement reference position, the stamp is small, so it is difficult for the user to recognize the stamp at first glance, and it is difficult to grasp the document placement reference position. Further, when the stamp is not colored, the stamp is the same color as the casing, so that it is not conspicuous, and it is difficult to see the document reference position at first glance. In particular, when the surroundings of the scanner are dark, it is difficult for the user to find the marking, and it is difficult to visually recognize the document reference position at first glance. Even if the stamp is colored with a different color from the housing, the paint has peeled off after many years of use and the stamp has the same color as the housing, making it difficult to recognize the original reference position as described above. . In the scanner described in Patent Document 1, since a seal indicating the document placement reference position is stretched on the housing, a mark indicating the document placement reference position drawn on the seal after the paint has been peeled off after many years of use. It was hard to see. Further, when the hand or the book touches the seal several times, the seal is rolled from the end and the seal is peeled off. In a scanner provided with an LED lamp indicating a document placement reference position, an electronic board, an electric circuit, and the like constituting the LED lamp are required, and the cost increases due to an increase in the number of components such as elements and circuits.

  The present invention has been made to solve the above-described problem, and provides a scanner that allows a user to easily recognize a document placement reference position and reduce the number of parts to reduce costs. The purpose is to do.

In order to achieve the above object, the invention of claim 1 is characterized in that a casing, a manuscript table which is provided on the upper surface of the casing and is made of a transparent plate-like member for placing a manuscript, and is openable and closable to the casing. attached to, the document cover that presses the document placed on the document table, wherein the housing platen along the lower surface is provided movably, the light emitting portion and the irradiating light to the document has a light receiving portion for receiving the light reflected by the document, the scanner and a linear document reading sensor for reading the original document based on the light reception signal at the light receiving unit, to the housing, the original An opening having an L-shape in plan view is provided in the vicinity of the outside of the corner portion of the document table serving as a reference position on which the document is placed, and a light transmitting member that transmits light is installed in the opening. The document reading sensor is The light emitting unit is disposed at a lower position outside the document table and including one side of the L-shaped opening, and the light emitting unit is in a light emitting state. The light emitting unit is red (RED; hereinafter abbreviated as R). ), Green (GREEN; hereinafter abbreviated as G), and blue (BLUE; hereinafter abbreviated as B). the light emitting portion is to leak the outside of the housing through the transparent member, wherein the document is to be able to be viewed by the user a reference position to be placed.

  As described above, according to the first aspect of the present invention, the housing has the L-shaped opening portion in plan view disposed close to the outside of the corner portion of the document table, and the light transmitting member is disposed in the opening portion. Is provided. A document reading sensor composed of a light emitting portion and a light receiving portion is disposed at a lower position including one side of an L-shaped opening in a plan view, and the light emitting portion is in a light emitting state during standby. For this reason, at the time of standby, the light of the light emitting unit leaks outside from the light transmitting member of the opening indicating the document placement reference position, so that the user can easily recognize the document placement reference position. Since the original reference position is indicated by light, the original placement reference position can be easily and clearly seen by the user even when the periphery of the scanner is dark.

  By making the shape of the light transmitting member of the opening L-shaped in plan view, in order to allow the user to place the document according to the corner of the document table, the corner portion of the document table including the document placement reference position is provided. The user can easily recognize it.

  By using the light from the light emitting portion of the document reading sensor necessary for the scanner to indicate the document placement reference position, it is possible to reduce the number of parts and reduce costs without providing a special light emitting means. it can.

  The light emitting unit of the document reading sensor is configured to emit light of any color by controlling lighting of three colors of red (R), green (G), and blue (B) individually. For this reason, the light color of the light emitting unit can be adjusted according to the color of the housing, etc., the visibility of the light indicating the document placement reference position is improved, and the document placement reference position can be easily viewed by the user. Can be recognized.

  A scanner according to a first embodiment of the present invention will be described with reference to FIGS. The scanner is a flat bed type, and is provided in the housing 1, a document table 2 for placing a document, a document cover 3 for pressing a document placed on the document table 2, and the housing 1. A line-shaped document reading sensor 5 or the like for reading a document is provided, and the housing 1 is provided with an L-shaped opening 11 in a plan view for indicating a document placement reference position. The light transmissive member 4 that transmits the light is installed.

  As shown in FIG. 1, a document table 2 made of a transparent plate-like member such as a glass plate is installed on the top surface of the housing 1, and the document cover 3 is a housing for holding the document placed on the document table 2. It is attached to the body 1 so that it can be opened and closed. The line-shaped document reading sensor 5 is provided in the housing 1 so as to be movable in the sub-scanning direction along the lower surface of the document table 2. The housing 1 is provided with an operation unit, and the operation unit includes a scan button 7, a save button 8, a copy button 9, and an E-mail button 10.

  When the user places a document on the document table 2, closes the document cover 3, and presses the scan button 7, scanning starts. The line-shaped document reading sensor 5 reads one line at a time in the main scanning direction from the document reading start position, that is, the document reading origin, moves in the sub scanning direction along the lower surface of the document table 2, and is placed on the document table 2. Read the placed document. When the save button 8 is pressed after the original is read, the original data can be saved in a computer (not shown) connected to the scanner. When the copy button 9 is pressed, the read document can be printed by a printer (not shown) via a computer (not shown) connected to the scanner. When the E-mail button 10 is pressed, the read document data can be attached to the mail in a computer (not shown) connected to the scanner.

  As shown in FIGS. 2 and 3, the housing 1 is provided with an opening 11 having an L-shape in plan view close to the outside of the corner portion of the document table 2 serving as a document placement reference position. A transparent light transmitting member 4 that transmits light such as glass or plastic is embedded in the opening 11. By making the shape of the light transmissive member 4 of the opening 11 L-shaped in plan view, the user can easily recognize the original reading origin, that is, the corner portion of the original table 2 including the original placement reference position. For this reason, it is possible for the user to easily place the document with the corner of the document aligned with the corner of the document table.

  The document reading sensor 5 is disposed at a lower position outside the document table 2 and including one side of the L-shaped opening 11 during standby. The document reading sensor 5 includes a light emitting unit (not shown) that irradiates light on the document and a light receiving unit (not shown) that receives light reflected by the document, and the light emitting unit is in a light emitting state during standby. During standby, light from the light-emitting portion leaks outside the housing 1 through the light transmitting member 4 provided close to the document placement reference position, so that the user can easily recognize the document placement reference position. . When the user opens the document cover 3 in order to use the scanner, the user can easily grasp the document placement reference position by the light of the light emitting unit even when the periphery of the scanner is dark. The light transmitting member 4 is preferably a lens in order to condense light from the light emitting part. For example, a lens whose upper surface visible from the outside is a flat surface and whose lower surface has a convex shape is used as the light transmitting member 4. When the light transmissive member 4 is a lens, the light transmissive member 4 condenses the light from the light emitting unit and leaks the collected light to the outside. Light that leaks to the outside and indicates the document placement reference position becomes light with high brightness, and allows the user to easily recognize the document placement reference position. By using the light from the light emitting part of the document reading sensor necessary for the scanner to indicate the document placement reference position, it is not necessary to provide special light emitting means such as elements such as LEDs or circuits, reducing the number of parts. As a result, the cost can be reduced.

  The document reading sensor 5 has a case where the light emitting portion is a fluorescent tube and the light receiving portion is a CCD sensor, and the light emitting portion is an LED, and the light receiving portion is a CIS sensor consisting of a CMOS. .

  When the document reading sensor 5 is of the CCD system, the fluorescent tube irradiates light on the document placed on the document table 2, and the light reflected from the document is mirror, lens, red (R), green (G) and blue. The light is received by the CCD sensor through the filter (B). Each color filter transmits light corresponding to the color of each filter out of the light reflected from the document. Based on the light reception signal for each color, the document reading sensor 5 reads the document. During standby, the fluorescent tube emits light, and the light from the fluorescent tube passes through the light transmitting member 4 located above. The transmitted light allows the user to easily grasp the document placement reference position.

  In the case where the document reading sensor 5 is a CIS system, the light emitting unit includes LEDs that emit light of R, G, and B colors. The LED sequentially irradiates the light of each color onto the document, and the light reflected by the document is sequentially received by the CMOS sensors arranged in a line. The document reading sensor 5 reads the document based on the light reception signal for each color emission. During standby, the LED emits light, the light from the LED passes through the light transmitting member 4 located above, and the light that passes through and leaks to the outside allows the user to easily grasp the document placement reference position. The light color of the light emitting unit during standby can be set to any color by adjusting the brightness by individually controlling the LEDs of the R, G, and B colors. For example, in order to give a high-class feeling to the scanner, the light color of the light emitting unit is set to the same color as that of the housing 1. Further, in order to improve the visibility of the document placement reference position, the light color of the light emitting unit is set to the complementary color of the housing 1. When an error occurs in the scanner or the scanner breaks down, the light emitting unit operates to notify the user of the error or failure. For example, it lights up in red, emits light of a color different from that during standby, or flashes. For this reason, in order to notify the user of the abnormality, the light is emitted from the light emitting portion of the document reading sensor 5 required for the scanner without separately providing special light emitting means such as an element such as an LED or a circuit. The cost can be reduced by reducing the number of points.

  Next, a scanner according to the second embodiment will be described with reference to FIGS. In the second embodiment, the opening 11 and the light transmission member 4 are provided in the housing 1, and the opening 12 and the light transmission member 6 are also provided in the document cover 3. Different from form. As shown in FIG. 4, the light transmitting member 6 of the document cover 3 has an L shape in plan view, and has the same shape as the light transmitting member 4 of the housing 1.

  As shown in FIGS. 5 and 6, an opening 12 of the document cover 3 is provided at a position directly above the opening 11 of the housing 1 when the document cover 3 is closed. Is embedded with a transparent light transmitting member 6 that transmits light such as glass or plastic. The light transmissive member 4 of the housing 1 and the light transmissive member 6 of the document cover 3 have the same size, and overlap when viewed in plan when the document cover 3 is closed. When the document cover 3 is closed and the scanner is on standby, the light emitted from the light emitting portion of the document reading sensor 5 is transmitted through the light transmitting member 4 of the housing 1 and the light transmitting member 6 of the document cover 3. Then, it leaks outside the document cover 3. Therefore, the user can easily recognize the document placement reference position before opening the document cover 3 to use the scanner, and can use the scanner smoothly. When an error occurs in the scanner or the scanner breaks down, the light emitting unit lights up in red, emits light of a color different from the light during standby, or flashes. For this reason, even when the document cover 3 is closed by the light of the light-emitting portion that has passed through the light transmitting member 6 of the document cover 3, the user can be made aware of the abnormality of the scanner, and the user is in an abnormal state. Can be responded to early. In order to collect the light of the light emitting part that has passed through the light transmissive member 4, the light transmissive member 6 is preferably a lens. For example, the light transmitting member 6 is a lens whose upper surface seen from the outside with the document cover 3 closed is a flat surface and whose lower surface is a convex shape. When the light transmissive member 6 is a lens, the light transmissive member 6 condenses the light of the light emitting part that has passed through the light transmissive member 4 and leaks the collected light to the outside. The light indicating the document placement reference position leaked to the outside becomes light with high luminance, and the user can easily recognize the document placement reference position.

  In addition, this invention is not restricted to the structure of various embodiment, A various deformation | transformation is possible. For example, the shape of the opening 11 and the light transmitting member 4 provided in the housing 1 and the opening 12 and the light transmitting member 6 provided in the document cover 3 are not limited to an L shape in plan view. It may be an arrow shape in plan view that points to the document placement reference position, a circular shape in plan view, a line shape in plan view, or a rectangular shape in plan view. The light transmissive members 4 and 6 that transmit light are not limited to a transparent color, and may be colored in the same color as the housing 1, a complementary color of the housing 1, or a color different from both colors. The light transmitting members 4 and 6 are not limited to lenses, and may be flat plates. In the above description, the case where the opening 11 is provided in the housing 1 and the light transmitting member 4 is installed in the opening 11 has been described. However, even if the light transmitting member 4 is not installed in the opening 11. Good. Further, the case where the opening 12 is provided in the document cover 3 and the light transmitting member 6 is installed in the opening 12 has been described, but the light transmitting member 6 may not be installed in the opening 12. Further, the light transmissive member 4 and the light transmissive member 6 are not limited to the same shape and the same size, and may have different shapes and different sizes.

FIG. 3 is a perspective view of the scanner when the document cover is open according to the first embodiment of the present invention. FIG. 3 is a plan view of the scanner when the document cover is open in the first embodiment. AA sectional view taken on the line in FIG. FIG. 9 is a perspective view of a scanner when a document cover is open according to a second embodiment of the present invention. FIG. 6 is a plan view of a scanner when a document cover is closed in the second embodiment. BB sectional drawing in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Case 2 Document stand 3 Document cover 4, 6 Light transmission member 5 Document reading sensor 7 Scan button 8 Save button 9 Copy button 10 E-mail buttons 11, 12 Opening

Claims (1)

A housing, wherein is installed in the housing top surface, a platen made of a transparent plate-like member for holding a document, openably mounted to the housing, is placed on the original table the A document cover that holds the document; a light-emitting unit that radiates light on the document; and a light-receiving unit that receives the light reflected from the document; in scanner and a linear document reading sensor for reading the original document based on the light reception signal at the light receiving unit,
Wherein the housing, an opening portion in a plan view L-shape in proximity to the outside of the platen of the corner portion serving as a reference position where the document is placed is provided, transmit light in the opening A light transmissive member is installed,
The document reading sensor is disposed at a lower position outside the document table and including one side of the L-shaped opening during standby, and the light emitting unit is in a light emitting state. , Red (R), green (G) and blue (B) are individually controlled to turn on and emit light in any color.
Scanner, characterized in that light of the light emitting portion through the light transmitting member of the opening leaks to the outside of the housing, the document is to be able to be viewed by the user a reference position to be placed .

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