KR20040045700A - A power transmission device for printer and printer therewith - Google Patents

Abstract

PURPOSE: A power transmitter of a multi-function printer and a multi-function printer having the power transmitter are provided to operate a scanning mode and a printing mode using a single driving motor. CONSTITUTION: A multi-function printer includes a document plate, a CCD(Charge Coupled Device) module(110), a carriage module(120), a power transmitter(100), a paper feeder(40), and a line feed motor. The document plate is formed of transparent glass such that the CCD module scans the plate. The CCD module includes a CCD image sensor and an image memory. The carriage module includes a printer head for printing image data, an ink cartridge(120-1) having the printer head, and a carriage(120-2) to which the ink cartridge is detachably fixed. The power transmitter includes a composite driving motor(101), a timing belt(102), and the first and second combining parts(103,104). When the driving motor is rotated, the rotating force is transmitted to the first combining part.

Description

Power transmission device for a composite printing machine and a composite printing device having the same {A POWER TRANSMISSION DEVICE FOR PRINTER AND PRINTER THEREWITH}

The present invention relates to a composite printing apparatus, and more particularly, to a power transmission apparatus for a composite printing apparatus capable of driving a scanning mode and a printing mode with one driving motor, and a composite printing apparatus having the same.

In general, printing machines such as printers and copiers are widely used as office automation equipment, and each office automation equipment has been developed with high performance in order to expand its own functions. Accordingly, more expensive products are being developed. On the other hand, as described above, a printer and a copier, which were used only for each unique function, are developed in one piece, thereby producing a product that reduces the economic burden on the user.

This multi-function printer has a sheet feed method in which the paper is moved downward when the paper is pushed on the upper side of the system, and the image sensor moves under the glass when the object to be scanned is placed on the glass in the most widely used manner. It can be classified into a flat bed method to be scanned.

1 is a cross-sectional view schematically showing an example of a conventional flat type composite printing apparatus, which will be briefly described as follows.

The conventional multifunction printer includes a CCD module 15 for scanning an original sheet 1a on which an original sheet 1a to be scanned is placed, and a CCD module 15 for scanning the original sheet 1a placed on the original sheet 1. A scan motor 10 for driving an image, a carriage module 25 for forming an image on printing paper, a carriage motor 20 for driving the carriage module 25, and a paper feeder 40 on which printing paper 40a is loaded. And a line feed motor 30, which feeds the printing paper 40a from the carriage module side to the carriage module side.

The document sheet 1 on which the document sheet 1a to be scanned is placed is made of a transparent plate such as glass so as to be scanned by the CCD module 15.

The CCD module 15 is moved left and right on the CCD shaft 16 by the scan motor 10 as shown in FIG. 2A and scans an image of the original paper 1a placed on the original plate 1. The image data of the original paper 1a scanned in this manner is printed on the printing paper 40a in the printing mode.

As shown in FIG. 2B, the carriage module 25 includes an ink cartridge 25-1 having a printer head (not shown) for forming an image and a detachable fixing of the ink cartridge 25-1. The carriage 25-2 is included. The carriage 25-2 in which the ink cartridge 25-1 is detachably mounted is reciprocally driven left and right on a carriage shaft (not shown) by the carriage motor 20, thereby printing the scanned image data. Will print on the ground. Ink in the ink cartridge 25-1 is ejected from the print head (not shown) at a constant timing interval while the carriage 25 is driven at a constant speed.

The printing paper loaded in the paper feeder 40 is picked up by the pick-up roller (not shown) by the pick-up roller (not shown) to the carriage module 25 side and transferred to the carriage module 25 side. The paper is fed to the position of the next line by performing line feeding by the motor 30.

With reference to Figure 2 will be described a power transmission device of the conventional hybrid printing machine.

The CCD module 15 is connected to the first timing belt 12, and the power generated by the scan motor 10 mounted on the CCD frame 11 is coupled to the axis of the scan motor 10. It is transmitted to the 1st coupling part 13 and the 1st timing belt 12 which hangs on the 2nd coupling part 14 mounted in the opposite side of the said scan motor 10. As shown in FIG. Accordingly, the first timing belt 12 is moved by the power of the scan motor 10 to be transmitted, and the CCD module 15 connected to the first timing belt 12 moves left and right about the CCD shaft 16. Scanning is done while moving back and forth.

In addition, the carriage module 25 is connected to the second timing belt 22, the power generated by the carriage motor 20 mounted on the carriage frame 21 is coupled to the shaft of the carriage motor 20 The third coupling part 23 and the fourth coupling part 24 mounted on the opposite side of the carriage motor 20 are transmitted to the second timing belt 22. Therefore, the second timing belt 22 is moved by the power of the carriage motor 20 transmitted, and the carriage 25 connected to the second timing belt 22 reciprocates left and right around the carriage shaft. It is printed.

On the other hand, the printing paper 40a which is fed sheet by sheet from the paper feeder 40 by the pickup roller is transferred to the carriage module 25 side by line by a feed gear (not shown) of the line feed motor 30. It is printed.

The composite printing machine as described above scans a document feeder placed on the document feeder plate 1 and a line feed motor 30 for feeding the printing paper 40a from the paper feeder 40 to the carriage module 25 side. The scan motor 10 for driving the CCD module 15 and the carriage motor 20 for driving the carriage module 25 for forming an image on the conveyed printing paper 40a should be separately provided. .

As such, although the motor for driving the product is expensive, the cost of the multi-printer is increased by using three motors for three purposes, respectively, and the shape of the multi-printer increases as a whole and takes up a lot of space. Accordingly, there is a problem that the shape is similar for each manufacturer does not satisfy the taste of consumers.

SUMMARY OF THE INVENTION The present invention has been made in view of the above, and an object thereof is to provide a power transmission device for a multi-function printer, in which a scanning mode and a printing mode can be driven by one driving motor.

Another object of the present invention is to provide a composite printing machine having a power transmission device having the above characteristics.

1 is a view schematically showing a conventional composite printing machine generally used;

Figure 2a is a view showing a charge coupled device (CCD) module of a conventional composite printing apparatus,

Figure 2b is a view showing a carriage module of a conventional multi-functional printing machine,

3 is a view schematically showing a composite printing machine according to the present invention;

4 is a view showing a power transmission device of a multi-function printer according to the present invention.

<Description of Symbols for Major Parts of Drawings>

100: power transmission device 101: combined drive motor

102 timing belt 103 first coupling portion

104: second coupling part

110: charge coupled device (CCD) module

120: carriage module

In accordance with one aspect of the present invention, there is provided a power transmission apparatus of a hybrid printing apparatus, comprising: a CCD (charge coupled device) module for scanning an image of a document, and a carriage module for printing the scanned image data. A power transmission device, comprising: a timing belt connected to one side of the CCD module and a carriage module connected to a position opposite to the CCD module; A combined drive motor for driving the timing belt; A first coupling part coupled to the shaft of the combined drive motor and configured to transfer one driving force to one side of the timing belt; A second coupling part installed on the opposite side of the combined drive motor and caught by the other side of the timing belt; Include.

Further, according to a preferred embodiment of the present invention, the CCD module and the carriage module are located on opposite sides of the driving device, respectively, in the standby state.

On the other hand, a composite printing machine for achieving another object of the present invention, the paper feeding unit on which printing paper is stacked; A charge coupled device (CCD) module for scanning an image of a document; A carriage module for printing the scanned image data; A line feed motor for transferring printing paper from the paper feeder to the carriage module side of the multi-function printer; And a power transmission device for transmitting power to the CCD module and the carriage module.

The power transmission device includes: a timing belt to which the CCD module is connected to one side and a carriage module is connected to a position opposite to the CCD module; A combined drive motor for driving the timing belt; A first coupling part coupled to the shaft of the combined drive motor and configured to transfer one driving force to one side of the timing belt; A second coupling part installed on the opposite side of the combined drive motor and caught by the other side of the timing belt; Include.

Further, according to a preferred embodiment of the present invention, the CCD module and the carriage module are located on opposite sides of the driving device, respectively, in the standby state.

Further, according to a preferred embodiment of the present invention, the paper feeder is mounted at the lower end of the CCD module.

The above objects and other features will become more apparent by describing the preferred embodiments of the present invention in detail with reference to the accompanying drawings. For reference, in describing the embodiments of the present invention, the same reference numerals refer to the same parts as those in the related art.

As shown in Figures 3 and 4, the composite printing apparatus according to an embodiment of the present invention, the original paper plate 1, CCD module 110, carriage module 120, power transmission device 100, paper The paper feeder 40 and the line feed motor 30 are configured to be included.

The document sheet 1 is formed of a transparent glass plate or the like so as to be scanned by the CCD module 110 positioned below it.

The CCD module 110 includes a CCD image sensor (not shown) mounted on a CCD shaft (not shown) and movable left and right to be operable to scan the original 1a placed on the original sheet 1. And an image memory (not shown) for storing the image data scanned from the document.

The carriage module 110 may include a printer head (not shown) for printing the scanned image data on a printing paper, an ink cartridge 120-1 provided with the printer head, and the ink cartridge 120-1. It comprises a carriage (120-2) that is detachably fixed.

The paper feeder 40 picks up the sheet of printing paper 40a loaded therein by a pickup roller (not shown) and feeds the sheet to the carriage module 120.

The line feed motor 30 transfers the paper to the position of the next line by performing line feeding when printing of one line is completed on the carriage module 120 side.

The power transmission device 100 includes a composite drive motor 101, a timing belt 102, a first coupling part 103 coupled to a shaft of the drive gear, and a second coupling part 104. do. The timing belt 102 is wound around the second coupling portion 104 mounted on the opposite side of the first coupling portion 103 and the combined drive motor 101. When the composite drive motor 101 is rotated, the timing belt 102 wound as described above is transmitted to the first coupling part 103 coupled to the shaft of the combined drive motor 101 to be moved. Pulleys are generally used for the first and second coupling parts 103 and 104, and conventional pulleys of the combined drive motor 101 are prevented to prevent interference between the CCD module 110 and the carriage module 120. It is desirable to apply larger dimensions than those used in the delivery device.

The CCD module 110 and the carriage module 120 are connected to the timing belt 102 at positions opposing each other, so that the timing belt 102 moves left and right when the combined drive motor 101 rotates. do. Then, the carriage module 120 and the CCD module 110 connected to the timing belt 102 move left and right in parallel on each shaft, respectively, to perform a printing function and a scanning function.

However, when the CCD module 110 moves to the left and right in the scanning mode, the carriage module 120 is simply moved to the left and right on the opposite side. In contrast, the carriage module 120 in the printing mode When moving to the left and right, the CCD module 110 is simply moved to the left and right on the opposite side.

Next, the operation of the multi-function printer according to the present invention is made as follows.

First, when the original paper 1a to be scanned is placed on the original paper plate 1 and a scanning signal is sent, the composite drive motor 101 is rotated to move the timing belt 102. Accordingly, the CCD module 110 connected to the timing belt 102 moves left and right along the shaft and scans the document to convert it into image data. Thereafter, the printing paper 40a is picked up from the sheet feeding unit 40 and is conveyed to the carriage module 120 side.

The carriage module 120 again moves left and right along the shaft in association with the movement of the timing belt 102 by the rotation of the combined drive motor 101, so that the carriage 120-2 of the carriage module 120 is moved. Ink is ejected onto printing paper according to image data from the print head of the ink cartridge 120-1 mounted on the substrate to form an image.

The paper feeder 40 is preferably mounted closely to the lower end of the CCD module 110 so that the multi-function printer having the power transmission device 100 according to the present invention as described above can be printed efficiently. Do.

The power transmission device of the composite printing apparatus and the composite printing apparatus having the same according to the present invention configured as described above can reduce the manufacturing cost thereof and reduce the space occupied by the structure.

As described above, according to the present invention, each driving motor is required in the scanning mode and the printing mode in the conventional composite printing apparatus. However, since only one driving motor can perform the mode, the cost of the composite printing apparatus can be reduced. In addition, the shape can be reduced, and the shape thereof can be miniaturized, thus taking up less space and reflecting the needs of consumers, such as a new design.

As mentioned above, although this invention was shown and demonstrated with reference to the preferred embodiment for demonstrating an illustration of this invention, this invention is not limited to the structure and operation as it was shown and described. Rather, those skilled in the art will appreciate that many modifications and variations of the present invention are possible without departing from the spirit and scope of the appended claims. Accordingly, all such suitable changes and modifications and equivalents should be considered to be within the scope of the present invention.

Claims (5)

A power transfer device of a hybrid printing apparatus having a charge coupled device (CCD) module for scanning an image of a document, and a carriage module for printing the scanned image data, A timing belt to which the CCD module is connected to one side and a carriage module is connected to a position opposite to the CCD module; One combined drive motor for driving the timing belt; A first coupling part coupled to the shaft of the combined drive motor and configured to transfer a driving force by being caught by one side of the timing belt; A second coupling part installed on an opposite side of the combined drive motor and caught by the other side of the timing belt; Power transmission device for a composite printing machine comprising a. The method of claim 1, wherein the CCD module and the carriage module, A power transmission device for a multi-function printer, characterized in that located in the standby state on the opposite side of each drive device. A paper feeder on which printing paper is stacked; A charge coupled device (CCD) module for scanning an image of a document; A carriage module for printing the scanned image data; A line feed motor for transferring printing paper from the paper feeder to the carriage module side of the multi-function printer; And In the composite printing machine comprising; a power transmission device for transmitting power to the CCD module and the carriage module, The power transmission device, A timing belt to which the CCD module is connected to one side and a carriage module is connected to a position opposite to the CCD module; One combined drive motor for driving the timing belt; A first coupling part coupled to a shaft of the complex drive motor and configured to transfer a driving force by being caught by one side of the timing belt; And A second coupling part installed on the opposite side of the combined drive motor and caught by the other side of the timing belt; Composite printing apparatus comprising a; The method of claim 3, wherein the CCD module and the carriage module, A composite printing machine, characterized in that located in the standby state on the opposite side of each drive device. The paper sheet feeding unit of claim 3 or 4, wherein Composite printer, characterized in that mounted on the lower end of the CCD module.