KR100288703B1 - Multi-functional peripheral device - Google Patents

Abstract

According to the present invention, the driving force of the same drive source transmitted to the pickup roller and the transfer roller is transmitted through different power transmission paths at the time of document feeding and paper feeding, thereby reducing the number of components and reducing the production cost and miniaturizing the product. And a multifunction apparatus capable of automatically carrying out continuous transfer of documents and papers, comprising: a printing device unit for printing data stored in a memory on paper; An original reading unit which reads the data recorded in the original and stores it in the memory; Pickup means installed on the pickup shaft to pick up the original and the paper; Conveying means for conveying the originals and papers picked up by the pick-up means; A paper stacking means having a paper feed plate which is moved up and down in association with the rotation of the pickup means, and the paper stacking means; Original stacking means on which the originals are loaded; A forward and reverse drive motor providing a driving force to the pickup means; And a pickup power transmission means for transmitting the driving force of the forward / reverse drive motor to the pickup means, wherein the pickup means rotates forward and backward by the driving force of the forward / reverse drive motor at the time of document pickup and paper pickup. And first power switching means for transmitting the driving force to the pickup means through different power transmission paths of the power transmission means for pickup, wherein the document stacking means and the paper stacking means are in accordance with the forward and reverse rotation of the pickup means. It is characterized in that it is provided on the upper side and the lower side of the pickup means so as to pick up the original and the paper, respectively.

According to the present invention configured as described above, since the original pick-up portion and the paper pick-up portion are separated, it is possible to automatically carry out the continuous transfer of the original and the paper, and the driving force of the motor transmitted to the pickup means and the transfer means is different from the time of feeding the original. Since paper is fed through different power transmission paths, the number of components can be reduced, resulting in reduced production costs and smaller products.

Description

Multifunction device {MULTI-FUNCTIONAL PERIPHERAL DEVICE}

The present invention relates to a multifunction apparatus in which a printing device unit and an original reading unit are spaced apart by a predetermined interval on the same paper conveying path so that originals and paper are conveyed along the conveying path, and more particularly, to a pickup roller and a conveying roller. The driving force of the same driving source is transmitted through different power transmission paths at the time of document feeding and paper feeding, thereby reducing the number of components and reducing the production cost, minimizing the product, and automatically feeding the document and paper continuously. It relates to a multifunction device that can be performed with.

Recently, a multifunction apparatus incorporating office automation (OA) devices such as printers, scanners, and fax machines into one complex device has been developed and used.

Since the multifunction machine generally includes an original reading portion and a printing device portion, the multifunction apparatus can simultaneously perform a function of reading data written on an original or printing the read data on another sheet using the multifunction apparatus. Here, 'image forming body' means a conventional inkjet printer head, and 'paper' means any conventional printing paper or any means by which data can be recorded.

Therefore, such a multifunction machine is provided with a drive motor for document transfer, a carriage motor, a paper feed motor, and the like, for reciprocating the printer head which is an image forming body, respectively.

Meanwhile, the multifunction device is classified into an array type multifunction device and a shuttle type multifunction device according to a driving method of an original reading part, and the multifunction device uses an original reading sensor having a size equal to or larger than the width of an original. In this case, the data recorded on the document is scanned line by line, and the shuttle type multifunction device transfers the document (or paper) according to the same driving source or the image forming body and the document reading sensor. It reads data recorded on the line while reciprocating in the transverse direction.

The conventional multifunction apparatus will be described with reference to FIGS. 1 and 2.

FIG. 1 illustrates an internal configuration diagram of an arrangement type multifunction apparatus in which an original and a paper have different transfer paths, and FIG. 2 illustrates a main configuration diagram of a shuttle type multifunction device in which an original and a paper have the same transfer path. .

First, the arrangement type multifunction device as shown in FIG. 1 can be divided into a scanner part and a printer part.

Looking at the scanner part, the document stacker (103) and the document stacker (103), which are extended from the document feeder (102) of the multifunction printer (100) so that a plurality of originals can be loaded in order to sequentially feed the originals. A document pick-up roller 104 and a friction pad 105 mounted at a position adjacent to the document feeder 102 so as to pick-up a plurality of stacked documents one by one sequentially, and a document pick-up roller ( The original position of the document conveyed by the document pick-up roller 104 and the friction pad 105, and the document detecting sensor 106 is installed on the axis of rotation of the 104 to detect whether there is a document inserted into the document feeder 102; A register sensor (107) for detecting the image, a feed roller (108) for conveying the document that has reached the register sensor (107), a document read sensor (109) for reading the data recorded in the conveyed document, and By the original read sensor 109 The memory 110 for storing the taken data, the document ejecting roller 111 mounted on the rear end of the document reading sensor 109 to eject the read-read original, and the document ejected by the document ejecting roller 111 The document tray 113 extends from the document discharge port 112 so as to be stacked.

On the other hand, in the printer part, a plurality of sheets of paper 114 are stacked and are detachably installed in the paper inlet 115 of the multifunction printer 100, and a plurality of sheets of paper stacked on the sheet cassette 116 are provided. A register sensor for sensing the conveyance position of the paper pick-up roller 117 adjacently mounted from the paper inlet 115 to pick up the paper 114 one by one, and the paper 114 picked up and conveyed by the paper pick-up roller 117. 118, a conveying roller 119 for conveying the sheet 114 reaching the register sensor 118, and a micro form forming image data to be printed on the sheet 114 conveyed by the conveying roller 119. A paper ejecting roller 120 mounted on the rear end of the micro ejecting apparatus 120 so as to eject the paper 114 on which the image data is recorded by the ejecting apparatus 120 and the micro ejecting apparatus 120 to the outside, and the paper Paper for loading the paper 114 discharged by the discharge roller 121 It consists of the paper tray 123 extended from the discharge port 122. As shown in FIG.

Here, looking at the detailed structure of the micro-injector 120, the carriage motor 125 and the carriage motor to provide a driving force for reciprocating the printer head 124 to the left and right to print the image data on the paper 114 A conveyance belt 126 installed on a motor shaft extending from the 125 and in contact with the printer head 124 to convey the print head 124 to the left and right sides in accordance with the rotational movement of the carriage motor 125, and the conveying direction of the paper; A guide shaft 127 installed in a direction orthogonal to the printer shaft, a printer head 124 reciprocating on the guide shaft 127 as the guide shaft 127 penetrates and the transfer belt 126 is driven, It is composed of an ink ejecting unit 128 which is provided integrally with the printer head 124 at an adjacent position opposite to the sheet 114 and injects ink onto the sheet to print image data.

On the other hand, the multifunction apparatus 100 is provided with an operation panel 129 in which a plurality of function keys are arranged so as to select various functions of the multifunction apparatus.

The operation of the conventional multifunction device having the configuration as described above will be briefly described as follows.

If the image data recorded on the document is read out and stored in the memory 110 and the stored image data is to be printed, the document is initially loaded on the document stacker 103 and then set to the document feed position. The original is sensed by), and this detection signal is transmitted to a controller (not shown).

As such, when the detection signal is transmitted to the controller, the controller drives each driving source for conveying the original in the scanner part, whereby the original pickup roller 104 is rotated and friction with the original pickup roller 104. Due to the friction force between the pads 105, a plurality of originals located between the original pickup roller 104 and the friction pad 105 are sequentially picked up one by one.

The picked original reaches the feed roller 108 and the current position of the original is sensed. The feed roller 108 transfers the original to the array type document read sensor 109 and then at the position corresponding to the initial line of the original. Stop the document. At this time, in the case of an array type multifunction device, since the length of the original reading sensor 109 for reading the phase data recorded on the original is equal to or larger than the width of the original, the original reading sensor 109 is used. According to the control of the controller, the data is read out line by line from the transferred document, and when the data in line unit is read, the feed roller 108 is driven again to transfer the document by the line size so that the data of the next line can be read.

The read data of the line unit is converted into digital data and then sequentially stored in the memory. When all the data of the original is read / stored, the original is discharged to the document discharge port 112 by the document eject roller 111. It is loaded in the document tray 113.

When the document is discharged to the outside of the multifunction peripheral 100 by the document ejecting roller 111 through this process, each driving source for transporting the document is stopped after a predetermined time elapses, and is read by the document reading sensor 109. Data stored in the memory 110 is transmitted to a predetermined device (for example, a printer device) through a modem or a line interface unit.

On the other hand, when printing the data transmitted from the memory 110, the transmitted digital data is transmitted to the printer part through the controller.

In order to print the data transmitted from the memory 110, the controller outputs a control command to a drive source for conveying the paper. Accordingly, the paper pickup roller 117 is driven to load a plurality of sheets loaded in the paper cassette 116. The paper 114 is picked up one by one. The picked-up paper 114 reaches the register sensor 118, and after the current position of the paper 114 is sensed, it is conveyed by the feed roller 119 to the print area by the printer head 124. Thereafter, the feed roller 119 is stopped so that the paper 114 remains stopped in the printing area.

When the paper 114 reaches the print area, the controller transmits data to be printed to the print head 124, whereby the print head 124 has an ink ejection position of the ink ejecting portion 128 so that an image is formed at a predetermined position. And ink injection timing.

In addition, the carriage motor 125 is driven to perform the printing operation of a predetermined width continuously while reciprocating the print head 124 in the transverse direction with respect to the conveying direction of the paper 114, thereby providing data corresponding to one line. Will print.

When data corresponding to one line is printed, the transfer roller 119 is driven to transfer the paper 114 to a position corresponding to the next one line, and then the paper 114 passes through the paper discharge port 122 to the paper tray ( The above-described process is repeatedly performed until it is discharged to 123. After that, when the paper 114 is completely discharged to the paper tray 123, all the driving sources for transferring the paper are stopped.

On the other hand, in the case of the shuttle-type MFP in which the original and the paper are transported along the same transport path, as shown in FIG. 2, the document read sensor 209 is integrally installed on one side of the printer head 224, and the printer head The 224 and the document reading sensor 209 are conveyed by the carriage motor 225 laterally with respect to the document conveying direction.

Here, reference numeral 226 denotes a transfer belt for reciprocating the print head and the original read sensor according to the driving force of the carriage motor, and reference numeral 227 denotes a transfer trace of the print head and the original read sensor. It means the guide shaft.

As described above, in the shuttle type multifunction apparatus in which the original read sensor 209 is integrally installed on one side of the print head 224, although not shown, the original and the printing paper are stacked on the same stacker, The printing paper is picked up by one pick-up roller and is to be conveyed along the same transfer path.

Accordingly, when the print command is input, the paper is held in the printing area by the driving of the pickup roller and the transfer roller.

When the paper reaches the print area, the printer head 224 controls the ink jetting position of the ink jetting section 228 and the ink jetting time point so that an image is formed at a predetermined position.

In addition, the carriage motor 225 is driven to continuously print the data corresponding to one line by continuously performing the printing operation of a predetermined width while reciprocating the print head 224 horizontally with respect to the paper feed direction. do.

When the data corresponding to one line is printed, the feed roller is driven to transfer the paper to the position corresponding to the next one line, and then the above process is repeatedly performed until the paper is discharged through the paper discharge port. When the paper is completely discharged, all driving sources for feeding the paper are stopped.

In the case of original transmission, the originals are loaded while the papers stacked on the stacker are removed.

Subsequently, when an original reading command is input, the document is set at a point where the original can read data by driving the pickup roller and the transfer roller, and the original reading sensor 209 is driven by the carriage motor 225. In the shuttle method, the data recorded in the document is read in a predetermined area unit and then stored in the memory.

However, the conventional multifunction apparatus as described above has the following problems.

First, since the multi-component multi-component multi-component device for driving the original reading sensor and the micro-injector must be provided separately, the structure of the multi-function device is complicated, the manufacturing cost is increased, and the size of the product is limited. There is.

Next, the shuttle-type multifunction device has a very slow document transfer time by shuttle scanning the original, and when transferring the original, the original must be loaded after removing the paper loaded in the stacker. Cannot be continued.

Accordingly, the present invention is to solve the above-mentioned problems, the drive force of the same drive source transmitted to the pick-up roller and the transfer roller is to be transmitted through different power transmission paths at the time of document feed and paper feed, the number of components The aim is to provide a multifunction device that can reduce production costs, reduce product size, and automatically perform continuous transfer of documents and paper.

1 is an internal configuration of an arrangement type multifunction apparatus according to the prior art which separates an original reading unit and a printing device unit so that originals and paper are transferred along different transfer paths.

2 is a main configuration of a shuttle multifunction device according to the prior art in which the document reading unit and the printing device unit are integrated so that the document and paper are conveyed along the same transport path.

Figure 3 is an internal configuration of the arrangement type multifunction apparatus according to the present invention to separate the document reading unit and the printing device unit to be transported along the same transfer path of the original and the paper.

Figure 4 is a side view for showing the installation state of the power transmission means applied to the multifunction apparatus of the present invention.

5 is a plan view for showing the installation state of the power transmission means applied to the multifunction apparatus of the present invention.

Figure 6 is a front view for showing the installation state of the spring clutch applied to the multifunction device of the present invention.

7 is a configuration diagram of the third power switching means applied to the multifunction apparatus of the present invention.

8 is a schematic configuration diagram of a paper sheet raising and lowering means applied to the multifunction apparatus of the present invention.

9 is a schematic configuration diagram of a pickup roller rotation control means applied to the multifunction apparatus of the present invention.

<Description of the code used in the main part of the drawing>

1: multifunction machine 3: forward and reverse drive motor

10: original stacker 20: paper feed cassette

30: pickup roller 40: resistor sensor

50: original reading section 52: white roller

60: printing device portion Z _{1 to} Z ₁₄ : power transmission gear

S _1- S ₅ : Spring clutch

A multifunction device of the present invention for achieving the above object, and a printing device unit for printing the data stored in the memory on a sheet; An original reading unit which reads the data recorded in the original and stores it in the memory; Pickup means installed on the pickup shaft to pick up the original and the paper; Conveying means for conveying the originals and papers picked up by the pick-up means; A paper stacking means having a paper feed plate which is moved up and down in association with the rotation of the pickup means, and the paper stacking means; Original stacking means on which the originals are loaded; A forward and reverse drive motor providing a driving force to the pickup means; And a pickup power transmission means for transmitting the driving force of the forward / reverse drive motor to the pickup means, wherein the pickup means rotates forward and backward by the driving force of the forward / reverse drive motor at the time of document pickup and paper pickup. And first power switching means for transmitting the driving force to the pickup means through different power transmission paths of the power transmission means for pickup, wherein the document stacking means and the paper stacking means are in accordance with the forward and reverse rotation of the pickup means. It is characterized in that it is provided on the upper side and the lower side of the pickup means so as to pick up the original and the paper, respectively.

In the above-described feature of the present invention, the multifunction apparatus is capable of raising and lowering a feed plate raising and lowering means provided at one end side of the pickup shaft to raise and lower the feeding plate at the time of paper pick-up, and the raising and lowering operation of the feed plate at the time of pick-up. On the other hand, it is further provided with a second power switching means for controlling the feed plate raising and lowering means so that the feed plate is maintained in the lowered state when picking up the document.

Here, the first and second power switching means may each be composed of a spring clutch.

According to a preferred feature of the invention, on the other end side of the pickup shaft, third power switching means is provided for temporarily blocking the transmission of the driving force of the forward and reverse drive motor to the pickup shaft.

According to another preferred feature of the invention, the multifunction apparatus further comprises rotation control means for distinguishing the number of sheets or originals to be conveyed by controlling the rotational speed of the pickup means relative to the conveying means, preferably conveying means: The set reduction ratio of the means is 1: 0.8.

In addition, the original stacking means of the present invention is composed of an upper plate and a lower plate, the upper plate is an elastic pad for imparting a friction force between the original and the pickup means by pressing the original loaded on the lower plate toward the pickup means, and the original loaded on the lower plate The document presence sensor is installed to detect the presence or absence of a paper.

In addition, the document reading unit of the present invention has a size equal to or larger than the width of the document, and the document reading sensor means fixedly installed at a predetermined position in the multifunction machine, and the document picked up by the pickup means is brought into close contact with the document reading sensor means. It includes a white roller for, the original reading portion is provided in front of the printing device portion on the same paper transport path.

Here, the white roller can serve to serve as a conveying means.

According to another preferred feature of the present invention, a multifunction machine includes: a transmission power transmission means for transmitting the driving force of the forward and reverse drive motor to the transportation means to rotate the transportation means in one direction; Controlling the rotational speeds of the fourth and fifth power switching means for transferring the driving force of the motor to the conveying means through different power transmission paths of the conveying power transmission means during the document and paper conveyance; It is provided with a rotation control means for.

In the above, the fourth and fifth power switching means may be configured as spring clutches, respectively.

In addition, the multifunction apparatus of the present invention further includes an intermediary means for directly receiving the rotational force of the drive gear provided on the rotating shaft of the motor and transmitting the power to the pickup power transmission means and the transfer power transmission means, wherein the mediation means is formed of different diameters. A second gear in which the first and second gears are integrally formed, wherein one of the first and second gears is meshed with the drive gear.

The pickup power transmission means of the present invention includes a first power transmission gear portion including a third gear meshed with the first gear and a fourth gear disposed coaxially with the third gear via a second power switching means; ; And a second power transmission gear unit having a fifth gear meshed with the third gear and a sixth gear installed on the same axis as the fifth gear via the first power switching means. The sixth gear includes a pickup shaft. It is fixed to one end side of the.

Therefore, when the paper is picked up, the driving force of the motor is transmitted to the pickup means through the first gear → the third gear → the fifth gear → the sixth gear, and when the original is picked up, the driving force of the motor is the first gear → the third gear → the first gear. It is transmitted to the pickup means via the 4th gear → 6th gear.

On the other hand, the power transmission means for transfer includes a third power transmission gear portion having an eighth gear which is provided on the same axis as the seventh gear via a seventh gear and a fourth power switching means engaged with the second gear; A fourth power transmission gear portion including a ninth gear meshed with the seventh gear and a tenth gear provided on the same axis as the ninth gear via a fifth power switching means; A fifth power transmission gear portion having an eleventh gear meshed with the tenth gear; A sixth power transmission gear portion having a twelfth gear meshed with the eleventh gear; A seventh power transmission gear unit having a thirteenth gear fixed to the rotary shaft of the transfer unit and engaged with the twelfth gear; And an eighth power transmission gear part including a fourteenth gear engaged with the eighth gear and the twelfth gear.

Therefore, at the time of paper pick-up, the driving force of the motor is transmitted to the conveying means via the second gear → 7th gear → 9th gear → 10th gear → 11th gear → 12th gear → 13th gear, and at the time of document pickup, the motor Drive force is transmitted to the conveying means via the second gear → 7th gear → 8th gear → 14th gear → 12th gear → 13th gear.

On the other hand, the intermediary means for transmitting the driving force of the motor to the pick-up power transmission means and the transfer power transmission means is constituted by a first gear, or the drive gear is directly engaged with the third and seventh gears without the intermediary means. It is also possible.

According to the characteristics of the present invention as described above, since the original pickup portion and the paper pickup portion are separated, it is possible to automatically carry out the continuous transfer of the original and the paper, and the driving force of the motor transmitted to the pickup means and the transfer means when the document is fed. It is delivered through different power transmission paths when feeding paper and paper, thus reducing the number of components and reducing production costs and miniaturizing the product.

Hereinafter, a preferred embodiment of the multifunction apparatus according to the present invention which separates the document reading unit and the printing apparatus unit so that the document and the paper are transported along the same transport path will be described in detail with reference to FIGS. 3 to 9.

Figure 3 shows the internal configuration of the multifunction apparatus according to the present invention.

In describing the present invention, duplicate descriptions of the same members as in the prior art will be omitted, and only essential components of the present invention will be described.

As shown, the multifunction printer 1 of the present invention is provided separately from the document stacker 10 and the paper cassette 20 by a predetermined interval, the space between the document stacker 10 and the paper cassette 20 A pickup roller 30 for picking up documents and papers is provided.

The original stacker 10 is composed of two plates, namely, the upper plate 11 and the lower plate 12, and the upper plate 11 is pressed by pressing the original loaded on the lower plate 12 toward the pickup roller 30 side. An elastic pad 13 for imparting friction force between the original and the pickup roller 30, and a document presence sensor 14 for detecting the presence or absence of the original loaded on the lower plate 12 are provided, and the lower plate 12 is provided. The through hole, not shown, is formed in order to allow a part of the pickup roller 30 to contact the original.

On the other hand, the paper feed cassette 20 is provided with a paper feeding plate 21 which is operated to move up and down by the paper feeding plate lifting means described later.

Then, at the rear of the document stacker 10 and the paper feed cassette 20 (rear on the paper feed path), a register sensor 40 for detecting the current position of the document or paper conveyed by the pickup roller 30, and the transfer, An original reading unit comprising an original reading sensor 51 for reading data stored in the prepared original and storing it in a memory, and a white roller 52 which is a density reference roller for bringing the transferred original to the original reading sensor 51 side. 50), the printing device unit 60 for outputting the data stored in the memory on the paper, the discharge roller 70 for discharging the original or paper that has been read or printed, and the discharge roller 70 The output tray 80 in which an original or paper is loaded is sequentially installed.

In the above, the white roller 52 of the document reading unit 50 functions as a conveying roller for conveying the document or paper picked up by the pickup roller 30.

Then, the printing device unit 60 for forming the image data to be printed on the paper conveyed by the white roller 52 has a driving force for reciprocating the printer head 61 in the horizontal direction of the paper conveying direction as in the prior art. It is provided on the carriage motor 62 and the motor shaft extending from the carriage motor 62 and in contact with the printer head 61 to transfer the printer head 61 to the left and right in accordance with the rotational movement of the carriage motor 62. The conveyance belt 63, the guide shaft 64 provided in the transverse direction with respect to the conveying direction of the paper, and the guide shaft 64 penetrate and the conveyance belt 63 is driven to reciprocate on the guide shaft 64. And an ink ejecting portion 65 which is integrally provided with the printer head 61 at an adjacent position facing the paper to be conveyed, and which prints image data by ejecting ink onto the paper.

On the other hand, the external panel of the multifunction apparatus 1 is provided with an operation panel in which a plurality of function keys are arranged so as to select various functions of the multifunction apparatus.

Hereinafter, a driving system for driving the pickup roller 40 and the white roller 52 will be described.

As shown in Figs. 4 and 5, the frame 2 of the multifunction apparatus is provided with a forward and reverse drive motor 3 for providing driving force to the pickup roller 30 and the white roller 52, and the motor 3 The drive shaft Z _D is integrally formed with the rotation shaft 3 'on the rotary shaft 3' of the pickup shaft, and the pickup shaft on which the pickup roller 30 is installed via the flange 31 on the right side of the motor 3. 32 is rotatably supported by the frame 2, and the white roller 52 is being fixed to the left side of the motor 3 by the rotating shaft 53. As shown in FIG.

In the above configuration, in the present invention, the driving force of the motor 3 is transmitted to the pickup shaft 32 through the relay means and the pickup power transmission means, while the white roller is passed through the relay means and the transfer power transmission means. It is supposed to be transmitted to the shaft 53 of 52.

In the embodiment of the present invention, the relay means is a first gear (Z ₁ ) to be engaged with the drive gear (Z _D ) of the motor and a second gear ( ₁ ) formed integrally with the first gear (Z ₁ ) on the same axis ( Z ₂ ), and the first and second gears Z ₁ and Z ₂ adjust the rotation speed of the motor 3 to match the rotation speed required for driving the pickup roller 30 and the white roller 52. It is formed to have different diameters to properly reduce the speed, but if the reduction ratio of other gears for power transmission can be properly adjusted, the relay means may be formed as a first gear, or the power transmission means for pickup and the power transmission means for transfer may be used. The drive gear of the motor 3 may be directly connected.

First, the pickup power transmission means for transmitting the driving force of the motor 3 to the pickup roller 30, the diameter of the drive gear (Z _D ) provided on the rotating shaft (3 ') of the motor (3) has a large diameter The first gear Z ₁ is engaged, and the third gear Z ₃ of the first power transmission gear portion is engaged with the first gear Z ₁ .

The first power transmission gear portion is composed of third and fourth gears Z ₃ and Z ₄ which are installed on the same axis via the first power switching means, and the first power switching means is used for picking up the document and picking up the paper. It consists of a first spring clutch S ₁ for transmitting the driving force of the motor 3 to the pickup roller 30 through different power transmission paths.

As is well known, the first spring clutch S ₁ is configured to transmit power in one direction while blocking power in the opposite direction, while in the present invention, while transmitting power in a clockwise direction as shown in FIG. 6. Power in the counterclockwise direction is interposed between the third and fourth gears Z ₃ and Z ₄ .

And, there is a fifth and a sixth gear (Z _5, Z _6), constituting one end side of the second power transmission gear portion of the pickup shaft 32 is provided via a third power switching means, the fifth gear (Z ₅ ) is engaged with the third gear Z ₃ , and the sixth gear Z ₆ is engaged with the fourth gear Z ₄ , respectively.

Here, the third power switching means is for temporarily blocking the transmission of the driving force of the motor 3 to the pickup shaft 32, as shown in FIG. 7, as in the first spring clutch S ₁ Rotation of the body by contacting the third spring clutch S ₃ and the stopper ST provided in the body of the spring clutch S ₃ , which are installed to transmit power in the clockwise direction and block power in the counterclockwise direction. It is composed of a stopper actuator SA provided on one side of the spring clutch to temporarily regulate the spring, and a spring SP provided on the third spring clutch S ₃ to control the operation of the stopper actuator SA.

On the other hand, the other end side of the pickup shaft 32 is provided with a feed plate lifting means for raising and lowering the feed plate 21 and a second power switching means for switching power transmitted to the feed plate lifting means. have.

As shown in FIG. 8, the paper plate lifting means is integrally formed with the first lever 22 ′ and the first lever 22 ′ for lowering the paper plate 21 and interacts with the regulating lever 23. It consists of the lever member 22 which consists of the 2nd lever 22 'to which it is made, and the control lever 23 for preventing the lever member 22 from rotating by the amount of inertia of the pickup roller 30. As shown in FIG.

Here, the one-way teeth are formed in the 2nd lever and the control lever.

The second power switching means is a second spring clutch S ₂ which is installed to transmit power in a clockwise direction and cut off power in a counterclockwise direction, and when the paper is picked up, the rotational force of the pickup shaft 32 is a lever. On the other hand, it is interposed between the pickup shaft 32 and the lever member 22 so that the rotational force of the pickup shaft 32 is not transmitted to the lever member 22 during the original pickup.

Therefore, the paper feed plate 21 is held in the lowered state by the first lever 22 'of the lever member 22 at the time of picking up the original.

Next, the transfer power transmission means for transmitting the driving force of the motor 3 to the white roller 52, the second gear Z having a small diameter formed integrally with the first gear Z ₁ of the mediation means ₂₎ has a seventh gear (Z ₇₎ that can be engaged with the seventh gear (Z _7), the shaft being installed, via a fourth power switching means eighth gear (Z ₈₎ is provided.

Here, the seventh and eighth gears Z ₇ and Z ₈ constitute a third power transmission gear part.

The ninth gear Z ₉ is engaged with the seventh gear Z ₇ , and the tenth gear Z ₁₀ is provided on the shaft on which the ninth gear Z ₉ is installed via a fifth power switching means. are installed, a tenth gear (Z ₁₀₎ is meshed with the third power transmission gear portion eighth gear (Z _8).

The ninth and tenth gears Z ₉ and Z ₁₀ constitute a fourth power transmission gear part.

In addition, a tenth gear has been engaged with the fifth power and the transmission is an eleventh gear (Z ₁₁₎ as a gear unit coupling the eleventh gear (Z ₁₁₎ is a twelfth gear (Z ₁₂₎ as a unit sixth power transmission gear The twelfth gear Z ₁₂ is engaged with the thirteenth gear Z ₁₃ serving as the seventh power transmission gear portion provided at the end of the shaft 53 of the white roller 52.

On the other hand, the fourteenth gear Z ₁₄ serving as the eighth power transmission gear is engaged with the eighth gear Z ₈ provided on the same axis as the seventh gear Z ₇ via the fourth power switching means. The fourteenth gear is also engaged with the twelfth gear Z ₁₂ as the sixth power transmission gear part.

In the above, the fourth and fifth power switching means are the thirteenth installed on the shaft 53 of the white roller 52 through the different power transmission path of the power transmission gear portion at the time of the original pickup and the paper pickup; The white roller 52 is rotated in one direction (paper feed direction) irrespective of the rotation direction of the motor 3 by transmitting it to the gear Z ₁₃ , and the same spring clutch as the second and third power switching means. The fourth and fifth spring clutches S ₄ and S ₅ are also provided to transmit power in a clockwise direction, while blocking power in a counterclockwise direction.

In the multifunction apparatus of the present invention, by controlling the rotational speed of the pickup roller 30 relative to the white roller 52 at a set reduction ratio (for example, 1: 0.8), a rotation control for distinguishing the number of sheets or originals to be conveyed Means are provided, which will be described with reference to FIG.

The cylindrical flange 31 interposed between the pickup roller 30 and the pickup shaft 32 is integrally fixed to the pickup roller 30 but not fixed to the pickup shaft 32. An idle section 33 is formed to have a set length so that the rotational force of the pickup shaft 32 is not transmitted to the pickup roller 30, and a restriction pin 34 inserted into the idle section 33 is formed in the pickup shaft 32. It is provided integrally.

Referring to the operation and effects of the multifunction device according to the present invention having the configuration as described above are as follows.

When the print command is input, the forward and reverse drive motor 3 is rotated counterclockwise in FIGS. 4 and 5, and the first and second gears Z _{1 and} Z ₂ meshed with the drive gear Z _D of the motor are rotated. Rotate clockwise.

Thus, the first gear (Z _1), a third gear (Z ₃₎ engaged in is rotated in the counterclockwise direction, the third gear (Z ₃₎ of the fifth gear (Z ₅₎ engaged in is rotated in the clockwise direction .

At this time, power is transmitted to the fourth gear Z ₄ installed on the same axis as the third gear Z _{3 by} the action of the first spring clutch S ₁ (blocking power in the counterclockwise direction). Power is transmitted to the sixth gear Z ₆ provided on the same axis as the fifth gear Z _{5 by} the action of the third spring clutch S ₃ (the power in the clockwise direction is transmitted).

As such, when the forward and reverse drive motor 3 is rotated counterclockwise, the driving force of the motor is transmitted to the pickup shaft 32 through the path A (first gear → 3rd gear → 5th gear → 6th gear). The pickup shaft 32 and the pickup roller 30 are rotated clockwise.

At this time, the rotational force of the pickup shaft 32 is transmitted to the lever member 22 due to the action of the fifth spring clutch S ₅ (the power in the clockwise direction is transmitted), so that the first and second levers 22 ', 22 ') is rotated in the clockwise direction. When the lever member is rotated in the clockwise direction, the paper feed plate 21 is lowered by the first lever 22' to prevent the interference between the paper and the pickup roller 30. At the same time, the one-way teeth of the regulating lever 23 and the one-way teeth of the second lever 22 'are engaged to prevent the feeding plate 21 from being raised and lowered.

After that, when the pickup roller 30 is continuously rotated in the paper feed direction, the regulating lever 23 is further rotated in the clockwise direction so that the paper feed plate is lifted by the spring, and the paper on the top of the paper loaded on the paper feed plate 21 is It is picked up by the pickup roller 30.

When the pickup roller continues to rotate after the paper is picked up by the pickup roller 30, the feed plate 21 is lowered by the first lever 22 ′, and the first spring clutch S ₁ and Power transmission to the pickup shaft 32 is temporarily interrupted by the action of the stopper actuator SA.

Looking at the process of transmitting the driving force of the motor 3 to the white roller 52 during the pickup process as follows.

Since the motor 3 is rotated counterclockwise at the time of paper pick-up, the first gear Z ₁ engaged with the drive gear Z _D of the motor 3 is rotated clockwise, and the first gear Z is rotated. The second gear Z ₂ integrally formed with ₁ ) is also rotated in the same direction as the first gear Z ₁ .

Thus, the second is the seventh gear (Z ₇₎ meshed with the gear (Z ₂₎ is rotated in the counterclockwise direction, the seventh gear as soon rotated (Z ₇₎ The ninth gear (Z ₉₎ clockwise coupling to At the same time, the tenth gear Z ₁₀ is rotated clockwise by the action of the fifth spring clutch S ₅ (which transmits power in a clockwise direction).

And, the tenth gear (Z ₁₀₎ of the eleventh gear (Z ₁₁₎ is rotated in the counterclockwise direction, the eleventh gear (Z ₁₁₎ the twelfth gear (Z ₁₂₎ engaged with the coupling in is rotated in the clockwise direction The thirteenth gear Z ₁₃ meshed with the twelfth gear Z ₁₂ is rotated counterclockwise.

At this time, since power is not transmitted to the eighth gear Z ₈ coaxially installed with the seventh gear Z ₇ , the fourteenth gear Z ₁₄ meshed with the twelfth gear Z ₁₂ is counterclockwise. The eighth gear Z ₈ , which is rotated and engaged with the fourteenth gear Z ₁₄ , is rotated clockwise.

Thus, when the forward and reverse drive motor 3 is rotated counterclockwise, the driving force of the motor is C path (second gear → 7th gear → 9th gear → 10th gear → 11th gear → 12th gear → 13th Gear) is transmitted to the rotating shaft 53 of the white roller 52 to rotate the white roller 53 counterclockwise.

Therefore, when the leading end of the picked-up paper contacts the register sensor 40 and the position of the leading end of the paper is sensed and then the leading end of the paper enters the white roller 52, the paper is loaded with the white roller (until the printing area is reached). 52), the drive of the motor 3 is stopped when the paper reaches the print area.

When the paper reaches the print area, the inkjet head 61 is transported in the transverse direction to the paper feed direction to print data corresponding to one line, and when the printing of one line is completed, the motor 3 is driven again. Thus, the pickup roller 30 and the white roller 52 are rotated by a predetermined rotational speed, and printing is continuously performed repeatedly as described above.

Referring to the rotation operation of the pickup roller here, before the paper is engaged with the white roller 52, the regulating pin 34 fixed to the pickup shaft 32 is located at the point a of the idle section 33 After the paper is engaged with the white roller 52, it is moved to point b by the speed difference between the pickup roller 30 and the pickup shaft 32 so that the paper speed matches the speed of the white roller 52, and the next paper is regulated. The pickup shaft 32 is picked up by the pickup roller 30 which rotates in conjunction with the pickup shaft 32 after the pickup shaft 32 is rotated until the pin 34 is positioned at the point a.

Therefore, since a certain distance is maintained between the sheets to be conveyed, the number of sheets between sheets can be distinguished by detecting a signal of a register sensor that outputs an on / off signal in accordance with whether the sheet is in contact with the sheet.

On the other hand, if a document read command is input, whether the document is loaded on the document stacker 10 is detected by the document presence sensor 14, and when the document is detected, the first lever to lower the paper tray for a predetermined time. Motor 3 is rotated counterclockwise.

Accordingly, the power of the motor is transmitted along the same path as that of the paper pick-up, and the paper feed plate 21 is lowered by the first lever 22 ', and the one-way teeth and the second lever 22' of the regulating lever 23 are lowered. The one-way teeth of) are engaged to prevent the paper feeding plate 21 from elevating operation.

Subsequently, when the motor is rotated clockwise to pick up the original, the first gear Z ₁ engaged with the driving gear Z _D of the motor is rotated counterclockwise, and the third gear Z ₃ is clockwise. Is rotated.

At this time, the fourth gear Z ₄ is also rotated clockwise by the action of the first spring clutch S ₁ , and the sixth gear Z ₆ meshed with the fourth gear Z ₄ is counterclockwise. The pickup shaft 32 and the pickup roller 30 are rotated counterclockwise, and the fifth gear Z ₅ engaged with the third gear Z ₃ is rotated counterclockwise, but the third spring clutch By the action of S ₃ , the rotational force of the fifth gear Z ₅ is not transmitted to the sixth gear Z ₆ .

Then, when the pickup shaft 32 and the pickup roller 30 are rotated counterclockwise, the rotational force of the pickup shaft 32 is not transmitted to the lever member 22 by the action of the second spring clutch S ₂ . The lowered state of the paper feed plate 21 is maintained.

As such, when the forward and reverse drive motor is rotated clockwise for picking up the original, the driving force of the motor is transmitted to the pickup shaft 32 through the path B (first gear → 3rd gear → 4th gear → 6th gear). The pickup shaft 32 and the pickup roller 30 are rotated counterclockwise.

Therefore, the lowest document among the documents stacked on the document stacker 10 provided above the pickup roller 30 is picked up by the pickup roller 30 and is conveyed along the transfer path.

During the document pickup process, the driving force of the motor 3 is transmitted to the white roller 52 as follows.

As described above, since the motor 3 is rotated clockwise at the time of picking up the original, the first gear Z ₁ engaged with the drive gear Z _D of the motor is rotated counterclockwise, and the first gear is rotated. The second gear Z ₂ integrally formed with Z ₁ is also rotated in the same direction as the first gear Z ₁ .

Therefore, the seventh gear Z ₇ engaged with the second gear Z ₂ and the eighth gear Z ₈ provided on the same axis as the seventh gear Z ₇ act as the fourth spring clutch S ₄ . Rotated in the clockwise direction, and the fourteenth gear Z ₁₄ engaged with the eighth gear Z ₈ is rotated counterclockwise.

And, 14 a twelfth gear (Z ₁₂₎ meshed with the gear (Z ₁₄₎ is rotated in the clockwise direction, the 12th gear (Z ₁₂₎ of claim 13, gear (Z ₁₃₎ engaged in is rotated in the counter-clockwise direction .

In this case, the first by the action of 7 gear (Z ₇₎ The ninth gear (Z ₉₎ is, but the rotation in the counterclockwise direction, a ninth gear (Z ₉₎ the rotational force is a fifth spring clutch (S ₅₎ for coupling to The tenth gear Z ₁₀ is not transmitted to the tenth gear Z ₁₀ , and the tenth gear Z ₁₀ is rotated clockwise by receiving the rotational force of the twelfth gear Z ₁₂ through the eleventh gear Z ₁₁ .

In this way, the driving force of the motor 3 at the time of picking up the document is the rotational axis of the white roller 52 along the D path (2nd gear → 7th gear → 8th gear → 14th gear → 12th gear → 13th gear). 53 is passed.

Therefore, when the tip of the picked-up document contacts the register sensor 40 and the position of the tip of the original is sensed, the driving of the motor 3 is stopped when the tip of the original enters the white roller 52.

Thereafter, when the motor 3 is continuously rotated in the clockwise direction, the white roller is rotated by the driving force of the motor, and the original is discharged while the data of the original is read through the close contact between the white roller and the original read sensor means. Before the original is engaged with the white roller 52, the regulating pin 34 fixed to the pickup shaft 32 is positioned at the point b of the idle section 33, and after the original is engaged with the white roller 52, the pickup is carried out. The speed difference between the roller 30 and the pickup shaft 32 is moved to the point a so that the original speed matches the speed of the white roller 52, and the next original is moved until the regulating pin 34 is positioned at the point b. After the pickup shaft 32 is rotated, it is picked up by the pickup roller 30 which rotates in conjunction with the pickup shaft 32.

Therefore, since a certain distance is maintained between the documents to be conveyed, the number of sheets between documents can be distinguished by detecting a signal of a register sensor that outputs an on / off signal according to whether the document is in contact with the documents.

As described above, according to the multifunction apparatus according to the present invention, since the original stacker and the paper feed cassette are separately provided, continuous transfer of the original and the paper can be performed automatically.

In addition, the conveying means for conveying the original or the paper is constituted by the white roller of the original reading portion, and the pickup roller and the white roller can be properly driven only by controlling the rotation direction of the motor, so that the number of components and production cost In addition, the size of the product can be reduced.

Claims (17)

A printing device unit for printing the data stored in the memory on paper; An original reading unit which reads the data recorded in the original and stores it in the memory; Pickup means installed on the pickup shaft to pick up the original and the paper; Conveying means for conveying the originals and papers picked up by the pick-up means; A paper stacking means having a paper feed plate which is moved up and down in association with the rotation of the pickup means, and the paper stacking means; Original stacking means on which the originals are loaded; A forward and reverse drive motor providing a driving force to the pickup means; In the multifunction machine comprising: a power transmission means for pickup for transmitting the driving force of the forward and reverse drive motor to the pickup means, First power switching to transfer the driving force to the pickup means through different power transmission paths of the power transmission means for pickup so that the pickup means is rotated forward and backward by the driving force of the forward and backward drive motor at the time of the original pickup and the paper pickup; And means, wherein the document stacking means and the paper stacking means are respectively provided on the upper side and the lower side of the pickup means so as to be able to pick up the original and the paper according to the forward and reverse rotation of the pickup means. The paper sheet raising / lowering means provided on one end side of the pickup shaft to raise and lower the paper feeding plate during paper pick-up, and the paper feeding plate raising / lowering operation for picking up paper. On the other hand, when picking up a document, the multi-function power switch means for controlling the feed plate raising and lowering means so that the feed plate is maintained in the lowered state. 3. The multifunction apparatus according to claim 2, further comprising third power switching means provided on the other end side of the pickup shaft to temporarily block transmission of the driving force of the forward and reverse drive motor to the pickup shaft. 4. A multifunction apparatus according to claim 3, wherein said first and second power switching means are spring clutches. 4. The multifunction apparatus according to claim 3, further comprising rotation control means for distinguishing the number of sheets or originals to be conveyed by controlling the rotational speed of the pickup means relative to the conveying means at a set reduction ratio. The multifunction machine according to claim 5, wherein the set reduction ratio is 1: 0.8. 4. An original pad according to claim 3, wherein the document stacking means is composed of an upper plate and a lower plate, and the upper plate has an elastic pad for imparting a friction force between the original and the pickup means by pressing the original loaded on the lower plate toward the pickup means; And a document presence sensor for detecting the presence or absence of documents loaded on the lower plate. 8. The document reader according to any one of claims 1 to 7, wherein the document reader has a document reading sensor means having a size equal to or larger than the width of the document and fixedly installed at a predetermined position in the multifunction machine, and the document picked up by the pickup means. And a white roller for being in close contact with the document reading sensor means, wherein the document reading section is provided in front of the printing apparatus section on the same paper conveying path. 9. A multifunction apparatus according to claim 8, wherein said conveying means is said white roller. 9. The apparatus of claim 8, further comprising: transfer power transmission means for transmitting the driving force of the forward and reverse drive motor to the transfer means to rotate the transfer means in one direction; Fourth and fifth power switching means for transferring the driving force of the forward / backward driving motor to the transfer means through different power transfer paths of the transfer power transfer means when transferring the document and the paper; The multifunction machine characterized by further comprising. 11. A multifunction apparatus according to claim 10, wherein said fourth and fifth power switching means are spring clutches. 11. The multifunction apparatus according to claim 10, further comprising an intermediary means for directly receiving the rotational force of the drive gear provided on the rotary shaft of the forward / reverse drive motor and transmitting it to the pickup power transmission means and the transfer power transmission means. The method of claim 12, wherein the intermediary means is a second gear in which the first and second gears of different diameters are integrally formed, wherein one of the first or second gears is meshed with the driving gear. Multifunction machine characterized by the above. The method of claim 13, wherein the pickup power transmission means, A first power transmission gear portion having a third gear meshed with the first gear and a fourth gear disposed coaxially with the third gear via the second power switching means; A second power transmission gear portion having a fifth gear meshed with the third gear and a sixth gear disposed coaxially with the fifth gear via the first power switching means; And a sixth gear is fixed to one end side of the pickup shaft. The driving force of the forward / reverse drive motor is transmitted to the pickup means through a first gear → 3rd gear → 5th gear → 6th gear when picking up the paper. And a driving force of the motor is transmitted to the pick-up means through a first gear → 3rd gear → 4th gear → 6th gear. 15. The method of claim 14, wherein the power transmission means for transfer, A third power transmission gear portion including an seventh gear meshed with the second gear and an eighth gear provided on the same axis as the seventh gear via the fourth power switching means; A fourth power transmission gear part including a ninth gear meshed with the seventh gear and a tenth gear provided on the same axis as the ninth gear via the fifth power switching means; A fifth power transmission gear part including an eleventh gear meshed with the tenth gear; A sixth power transmission gear part including a twelfth gear meshed with the eleventh gear; A seventh power transmission gear unit having a thirteenth gear fixed to the rotary shaft of the transfer unit and engaged with the twelfth gear; An eighth power transmission gear unit including a fourteenth gear meshed with the eighth gear and the twelfth gear; Multifunction device characterized in that consisting of. 17. The conveying means according to claim 16, wherein the driving force of the stationary drive motor is driven by the second gear → 7th gear → 9th gear → 10th gear → 11th gear → 12th gear → 13th gear when picking up the paper. And the driving force of the forward / reverse drive motor is transmitted to the transfer means through a second gear → 7th gear → 8th gear → 14th gear → 12th gear → 13th gear when picking up the document. Multifunction machine.