KR100268344B1 - Scanning Head of Shuttle System - Google Patents

Abstract

It is an object of the present invention to provide a scanning head of a shuttle composite device in which the volume of the shuttle composite device is efficiently reduced even when a plurality of printing heads are mounted in the shuttle composite device to implement a color printing function.

Therefore, in the present invention, the original and the recording paper are transferred to different paths, and the scanning head and the at least two printing heads are recorded in the original while reciprocating in the direction orthogonal to the conveying direction of the original and the recording paper with the scanning head and at least two printing heads stored in the carriage. A shuttle combined apparatus for scanning data and printing data on a recording sheet, wherein the scanning head is arranged so as to be opposite to at least two printing heads and is housed in a carriage, the width of the scanning head being the entire width of the at least two printing heads. It is less than the width, the vertical width of the scanning head is less than the total vertical width of the at least two printing heads, characterized in that the optical path of the scanning head is made in the width direction of the scanning head.

Description

Scanning Head of Shuttle System

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a scanning head of a Shuttle Type Composite Device (MFP), and more specifically, to a double device that includes two printing heads and a scanning head integrated therein. The present invention relates to a scanning head of a shuttle type hybrid apparatus having improved arrangement and structure of a double printing head and a scanning head.

Recently, office automation (OA) devices such as printers, scanners, copiers and facsimiles have been widely used. Each of these office automation equipment has been developed a high-performance product to expand its unique functions, thereby increasing the production cost of the product, increasing the economic burden on the consumer. For this reason, as office automation equipment used independently of each other is integrated into one complex device, it is possible to solve the economic burden on the consumer. Such complex devices are commonly referred to as "complexers" or "composite devices".

Conventional composite devices include a carriage for accommodating the printing head and the scanning head at the same time, a carriage return motor for reciprocating the carriage, and a guide rail for guiding the carriage path of the carriage. According to the arrangement of the head and the scanning head, it is configured to scan an original through the same path or different paths and to print image information on recording paper.

In addition, the scanning head mounted on the shuttle-type multifunction device scans the light onto the original and transmits the reflected light reflected by the image data of the original through the intermediate image reduction mirror ("Charge Coupled Device (CCD)). "Or CIS (Contact Image Sensor)" is used, and the formed light is output as an electric signal corresponding to the amount of light, thereby reading out an image recorded on the original.

Referring to Figure 1 will be described a schematic configuration of a conventional shuttle composite device.

Referring to FIG. 1, the main body frame 101 supporting the shuttle type composite apparatus and the base frame 102 forming a paper conveyance path are integrated.

In addition, the scanning head 103 is installed to be spaced apart from the effective reading area of the document by a predetermined distance, and is scanned apart from the effective printing area of the recording paper by a predetermined distance, and is separated from the scanning head 103 by a predetermined distance. The first and second printing heads 104 and 105 and the scanning head 103 and the first and second printing heads 104 and 105 which are installed adjacent to each other and spray black and color dyes for printing image information are simultaneously used. Carriage 106 for supporting, a guide rail 107 for guiding the left and right reciprocation of the carriage 106, and a carriage return motor for providing a driving force for the carriage 106 to reciprocate from side to side ( Carriage Return Motor 108, a carriage belt 109 that is simultaneously mounted to the carriage return motor 108 and the carriage 106 and transmits the driving force of the carriage return motor 108 to the carriage 106, and a cassette (not shown) And originals loaded on the Pick-up rollers (not shown) for picking up paper and feeding them into the transport paths of the originals and recording paper, and the effective reading area of the scanning head 103 and the first and second printing heads. The driving roller 110 for transferring to the effective printing area of the 104, 105, the discharge roller (not shown) for discharging the document whose scanning operation is completed, and the flow path of the carriage 106 are included in the scanning head. It is attached to one side of the readable area of the base frame 102 outside the effective reading area of the 103 and the effective printing areas of the first and second printing heads 104 and 105, and the scanning head 103 is of a predetermined type. It consists of the reference sheet 111 in which the white pattern is recorded.

In addition, a capping device (not shown) to prevent the nozzles of the first and second printing heads 104 and 105 from being dried at a point opposite to the point where the reference sheet 111 is attached, that is, the other side of the base frame 102. Home Ass'y 112 is installed.

The operation of the conventional shuttle type composite apparatus having such a configuration will be described with reference to FIG.

As illustrated in FIG. 2, when the scanning head 103 and the pair of printing heads 104 and 105 are arranged in a row, a complex device capable of performing both a scanning function and a printing function may be implemented. The total moving width W of the carriage 106 to perform all the functions is expressed by Equation 1 below.

W = W4 + 2 (W1 + W2 + W3)

Here, the printing heads 104 and 105 are assumed to be double printing heads in which the black cartridge and the color cartridge are independent types, respectively, the widths of which are W2 and W3, and the width of the scanning head 103 is W1. In addition, the width of the sheet of paper or recording paper 113 to be scanned or printed is W4.

However, according to the conventional shuttle type composite device, the following problems occur.

First, a free space is required at the start and end points of the document or recording sheet by the width of the scanning head 103 and the pair of printing heads 104 and 105, respectively. Therefore, when a plurality of printing heads 104 and 105 are installed in order to implement a color printing function, the volume of the shuttle-type composite device is increased.

Second, in order to reduce the volume of the shuttle-type composite device having a color printing function, the user needs to replace either the printing head 104 or 105 and the scanning head 103 alternately according to the purpose of use. It is very difficult to feel uncomfortable and to accurately maintain the focusing interval between the scanning head 103 and the original due to the characteristic of the scanning operation, resulting in deterioration of image quality.

Accordingly, an object of the present invention is to solve such problems, and an object of the present invention is to efficiently reduce the volume of a shuttle-type composite device even when a plurality of printing heads are mounted in the shuttle-type composite device to implement a color printing function. It is to provide a scanning head of the reduced shuttle compound device.

1 is a schematic structural diagram of a conventional shuttle type composite apparatus,

2 is an operation state diagram of FIG.

3 is a schematic structural diagram of a shuttle-type composite device applied to the present invention,

4 is an operation state diagram of FIG.

5 is a detailed structural diagram of the scanning head shown in FIG.

6 is a view for explaining the principle of the main scanning and the sub-scanning in the case of performing the scanning operation and the printing operation.

<Description of the code | symbol about the principal part of drawing>

304: scanning head 305, 306: printing head

307: carriage 313, 313a: lamp

314: frame 315, 315a: lamp housing

316, 316a: shield 317: reflector

318: isotropic imaging lens 319: photoelectric conversion element

320: Manuscript 321: Recording sheet

A feature of the present invention for achieving the above object is that the original and the recording paper are transferred in different paths, and the direction perpendicular to the conveying direction of the original and the recording paper with the scanning head and at least two printing heads stored in the carriage. A shuttle type composite apparatus configured to scan data recorded on an original and to print data on a recording sheet while reciprocating, wherein: the scanning head is arranged to face at least two or more printing heads, and is accommodated in a carriage, the width of the scanning head being The width of the at least two printing heads is equal to or less than the total width of the at least two printing heads, and the height of the scanning head is equal to or less than the total width of the at least two printing heads, and the optical path of the scanning head is in the width direction of the scanning head.

Here, the scanning head supports each component of the scanning head, and a frame having an opening having a predetermined size to emit light in the direction of the feed path of the document to one side and to receive the reflected light reflected by the document surface; At least one lamp housed in a one-to-one correspondence with at least one lamp receiving groove formed at a point adjacent to the opening of the frame and emitting light to the original surface; Refraction means installed in one side of the frame and refracting the reflected light reflected from the original surface at a predetermined angle; An imaging lens installed at an inner central portion of the frame to form reflected light refracted by the refraction means; And a photoelectric conversion element installed inside the other side of the frame and converting the signal into an electric signal corresponding to the amount of light formed by the imaging lens.

In this case, it is preferable to further include a shielding portion formed at an adjacent point from at least one lamp in the interior of the frame and preventing light emitted from the at least one lamp from directly reaching the refraction means.

In addition, the predetermined angle is 90 degrees with respect to the incident angle.

Incidentally, the refraction means is a reflector that totally reflects the reflected light reflected from the document.

The imaging lens is an isotropic imaging lens having the same magnitude of incident light of the imaging lens and exiting light of the imaging lens.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. First, in adding reference numerals to the elements of each drawing, it should be noted that the same elements are denoted by the same reference numerals as much as possible even if they are displayed on different drawings. In addition, in the following description there are shown a number of specific details, such as components of the specific circuit, which are provided only to help a more general understanding of the present invention that the present invention may be practiced without these specific details. It is self-evident to those of ordinary knowledge in Esau. In describing the present invention, when it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

FIG. 3 is a schematic structural diagram of the shuttle type composite apparatus applied to the present invention, FIG. 4 is an operational state diagram of FIG. 3, and FIG. 5 is a detailed structural diagram of the scanning head illustrated in FIG. 3. 6 is a view for explaining the principle of the main and sub-scanning in the case of performing the scanning operation and the printing operation.

First, referring to FIG. 3, the main body frame 301 supporting the shuttle type composite apparatus and the pair of base frames 302 and 303 forming a conveyance path of paper have an integrated structure.

Further, the scanning head 304 is installed to be spaced apart from the effective reading area of the original by a predetermined distance, and scans the image information recorded on the original, and is spaced apart from the effective printing area of the recording paper by a predetermined distance and is separated from the scanning head 304. The first and second printing heads 305 and 306 which are adjacently installed and spray black and color dyes for printing image information, and the scanning head 304 and the first and second printing heads 305 and 306 simultaneously A carriage 307 for supporting, a guide rail 308 for guiding the left and right reciprocation of the carriage 307, a carriage return motor 309 for providing a driving force for the carriage 307 to reciprocate from side to side, A transport belt 310 simultaneously mounted to the carriage return motor 309 and the carriage 307 to transmit the driving force of the carriage return motor 309 to the carriage 307, an original loaded on a cassette (not shown), and Pick up the recording sheet to copy the original A pickup roller (not shown) for feeding onto the conveying path of the lock paper, and an effective reading area of the scanning head 304 and the first and second printing heads 305 and 306 picked up by the pickup roller. A drive roller 311 for transferring to the effective printing area, a discharge roller (not shown) for discharging the document whose scanning operation is completed, and a read roller of the scanning head 304 are included in the flow trajectory of the carriage 307. A reference sheet (not shown) is attached to one side of the base frame 303 which is out of the area, and in which a white pattern of a predetermined type is recorded in which the scanning head 304 can read.

In addition, a capping device (not shown) to prevent the nozzles of the first and second printing heads 305 and 306 from drying out at a point opposite to the point where the reference sheet is attached, that is, the other side of the base frame 302. The home assay 312 is installed.

In particular, in the present invention, as shown in Figure 4, a pair of printing heads 305, 306 are arranged in the reciprocating direction of the carriage 307, the scanning head (305) on top of the pair of printing heads (305, 306) 304 is configured as a stacked structure. In this case, the width of the scanning head 304 is equal to or smaller than the overall width of the pair of printing heads 305 and 306 so as to simultaneously support the pair of printing heads 305 and 306 and the scanning head 304 ( 307) to reduce the overall width.

Meanwhile, referring to FIG. 5, the structure of the scanning head 304 will be described in detail. The pair of lamps 313 and 313a may be fixedly installed in the lamp receiving grooves 315 and 315a in the frame 314. Shields 316 and 316a are formed at predetermined positions of the lamp receiving grooves 315 and 315a to guide the light emitted from 313 and 313a to reach the original surface and to prevent the light from directly entering the image forming area. do. In addition, a reflection mirror 317 is installed on an optical path in which reflected light radiated from the lamps 313 and 313a and reflected on the original surface is introduced. An isolating imaging lens 318 is fixedly installed on the optical path in the frame 314 so as to be fixed on the frame 314 so as to maintain the shape, and to form the reflected light refracted by the reflector 317 in the imaging area.

Further, in the imaging area, a photoelectric conversion element 319 is fixedly installed in the frame 314 to receive the reflected light formed by the equal magnification imaging lens 318 and convert it into an electrical signal.

Here, the reflector 317 may be replaced by any refractive means having a reflectance of a predetermined value or more.

Referring to Figure 6 with respect to the operation of the present invention having such a configuration as follows.

The scanning principle as a continuous operation is shown in FIG. Here, the continuous operation means that the scanning head 304 repeatedly scans the main scanning direction and the sub scanning direction of the document. In FIG. 6, an operation characteristic when viewed from the downward direction with respect to the scanning head 304 is shown. In this case, the document 320 corresponds to the scanning area of the scanning head 304. In other words, the scanning area that can be scanned by one scanning operation is indicated by "d".

The image input in the main scanning direction as a continuous operation is performed by driving the carriage 307 in which the scanning head 304 and the pair of printing heads 305 and 306 are integrated. That is, the scanning operation is repeatedly performed while moving the scanning head 304 while moving in the main scanning direction at an arbitrary position. As a result, the main scanning is performed while moving in the direction of " A " for the scanning area of the " d " band of FIG.

In addition, the sub-scan means that the document is repeatedly moved by the number of scanning lines "d" based on the image sensor. The scanning operation is performed by acquiring a two-dimensional image of the original in this manner.

The printing operation, on the other hand, refers to an operation of performing image processing on data transmitted from the outside and forming a visible image on recording paper ("321" in FIG. 4) by ejecting ink from the pair of printing heads 305 and 306. FIG. The principle of the main scan and the sub scan in the continuous printing operation is the same as that of the main scan and the sub scan in the scanning operation. However, as illustrated in FIG. 4, since the transfer path of the document 320 and the transfer path of the recording paper 321 to be printed are independently implemented, the scanning position and the printing position are opposite to each other. (I.e., upward direction and downward direction).

When the scanning operation command is received, the lamps 313 and 313a are driven by a lamp drive (not shown). At this time, the light emitted from the lamps 313 and 313a is prevented from directly reaching the image forming area by the shielding parts 316 and 316a, and all of the light emitted through the areas other than the shielding parts 316 and 316a is the original. 320 is reached. At this time, the document 320 is conveyed with the data recording surface facing downward (direction in which the scanning head is installed).

Reflected light reflected by different amounts of light depending on the presence or absence of data recorded on the document 320 is refracted by 90 ° by the reflector 317 to reach the isometric lens 318, and the iso imaging lens 318 transmits the reflected light. An image is formed on the conversion element 319. As a result, image information recorded on the original is obtained in units of predetermined sizes. At this time, the size of the image information obtained by one scanning operation is 1 pixel (Pixel) x 128 pixels in mono, and 1 pixel x 160 pixels in color.

If the operation is continuously performed in the direction in which the carriage 307 is conveyed (scanning direction), an image of one band unit can be obtained. In this case, the scanning head 304 and the pair of printing heads 305, The entire moving width of the carriage 307 accommodated at the same time as 306 is expressed by Equation 2 below.

W = W4 + 2 (W2 + W3)

Therefore, the width of the device can be prevented from increasing as compared with the case in which the scanning head 304 and the pair of printing heads 305 and 306 are arranged in a line, and the scanning head 304 is formed to have a long width, thereby The overall volume of is reduced.

In addition, when the imaging lens in the scanning head 304 is used as the equal magnification imaging lens 318, the width of the scanning head 304 can be further reduced than when the reduction imaging lens is used.

As described above, in the detailed description of the present invention, specific embodiments have been described, but various modifications are possible without departing from the scope of the present invention. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be defined by the claims below and equivalents thereof.

As a result, according to the scanning head of the shuttle-type hybrid device according to the present invention the following advantages occur.

First, by designing the width of the scanning head to be equal to or smaller than the width of the at least one printing head, attaching the scanning head to the top of the at least one printing head, and scanning the lower surface of the document to be conveyed from the top of the carriage. In addition, the width of the device can be prevented from increasing, and by forming the scanning head long in width, the overall volume of the device is reduced.

Second, the width of the scanning head can be further reduced by using the imaging lens in the scanning head as an equal magnification lens.

Claims (6)

The document and the recording paper are transported in different paths, and the data recorded on the document is reciprocated in a direction orthogonal to the transport direction of the document and the recording paper with the scanning head and at least two printing heads stored in the carriage. In a shuttle combined device for scanning and printing data on the recording sheet: The scanning head is arranged to face the at least two printing heads and is received in the carriage, the width of the scanning head is less than or equal to the total width of the at least two printing heads, and the length of the scanning head is the at least The scanning head of the shuttle type composite apparatus, wherein the optical path of the two or more printing heads is equal to or smaller than the total length, and the optical path of the scanning head is in the width direction of the scanning head. The method of claim 1, wherein the scanning head, A frame supporting each component of the scanning head and having an opening having a predetermined size so as to emit light in one direction of the feeding path of the original and at the same time reflect light reflected by the original; At least one lamp housed in a one-to-one correspondence with at least one lamp receiving groove formed at a point adjacent to the opening of the frame and emitting light to the original surface; Refraction means installed in one side of the frame to refract the reflected light reflected from the original surface at a predetermined angle; An imaging lens installed at an inner central portion of the frame to form the reflected light refracted by the refraction means; And And a photoelectric conversion element installed inside the other side of the frame and converting the signal into an electric signal corresponding to the amount of light formed by the imaging lens. The method of claim 2, A scanning head of a shuttle type composite apparatus further comprising a shield formed at an adjacent point of the at least one lamp within the frame and preventing light emitted from the at least one lamp from directly reaching the refraction means. . The method of claim 2, wherein the predetermined angle is, A scanning head of a shuttle type composite apparatus, characterized in that 90 ° with respect to the incident angle. The method of claim 2, wherein the refraction means, And a reflecting mirror that totally reflects the reflected light reflected from the document. The method of claim 2, wherein the imaging lens, And an equal magnification imaging lens having the same size as the incident light of the imaging lens and the output light of the imaging lens.