KR100421993B1 - Paper feeding device of printer - Google Patents
Paper feeding device of printer Download PDFInfo
- Publication number
- KR100421993B1 KR100421993B1 KR10-2001-0051089A KR20010051089A KR100421993B1 KR 100421993 B1 KR100421993 B1 KR 100421993B1 KR 20010051089 A KR20010051089 A KR 20010051089A KR 100421993 B1 KR100421993 B1 KR 100421993B1
- Authority
- KR
- South Korea
- Prior art keywords
- dust cover
- actuator
- printer
- paper
- sensor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/015—Ink jet characterised by the jet generation process
- B41J2/04—Ink jet characterised by the jet generation process generating single droplets or particles on demand
- B41J2/045—Ink jet characterised by the jet generation process generating single droplets or particles on demand by pressure, e.g. electromechanical transducers
- B41J2/04501—Control methods or devices therefor, e.g. driver circuits, control circuits
- B41J2/04581—Control methods or devices therefor, e.g. driver circuits, control circuits controlling heads based on piezoelectric elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J11/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
- B41J11/22—Paper-carriage guides or races
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/015—Ink jet characterised by the jet generation process
- B41J2/04—Ink jet characterised by the jet generation process generating single droplets or particles on demand
- B41J2/045—Ink jet characterised by the jet generation process generating single droplets or particles on demand by pressure, e.g. electromechanical transducers
- B41J2/04501—Control methods or devices therefor, e.g. driver circuits, control circuits
- B41J2/0451—Control methods or devices therefor, e.g. driver circuits, control circuits for detecting failure, e.g. clogging, malfunctioning actuator
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/135—Nozzles
- B41J2/14—Structure thereof only for on-demand ink jet heads
- B41J2/14016—Structure of bubble jet print heads
- B41J2/14153—Structures including a sensor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/135—Nozzles
- B41J2/14—Structure thereof only for on-demand ink jet heads
- B41J2/14201—Structure of print heads with piezoelectric elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/135—Nozzles
- B41J2/16—Production of nozzles
- B41J2/1607—Production of print heads with piezoelectric elements
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Accessory Devices And Overall Control Thereof (AREA)
- Controlling Sheets Or Webs (AREA)
Abstract
본 발명에 따른 프린터의 급지장치는, 다수 매의 인쇄용지(3)를 적층하여 수납하는 급지카세트(2)와, 회전축(11)을 중심으로 회동하여 급지카세트(2)의 상부를 선택적으로 개방 또는 폐쇄하는 방진커버(10)와, 방진커버(10)의 회동에 연동하여 피봇축(31)을 중심으로 회동하는 액추에이터(30)와, 액추에이터(30)의 회동 위치를 검출함으로써 방진커버(10)의 개폐를 감지하는 포토센서(20)를 구비한다. 본 발명에 의하면, 포토센서(20)에서 방진커버(10)의 개폐여부를 감지하여, 방진커버(10)가 개방되어 있을 때는 프린터의 작동을 중지하고 사용자에게 경고를 함으로써, 인쇄 작업 중에 본체(1) 내부로 이물질이 투입되어 프린터가 고장나는 것을 방지할 수 있다.The paper feeding device of the printer according to the present invention includes a paper feed cassette (2) for stacking and storing a plurality of printing papers (3), and a rotating upper portion of the paper feed cassette (2) selectively rotated about the rotating shaft (11). Alternatively, the dustproof cover 10 is closed by detecting the rotational position of the actuator 30 and the actuator 30 pivoting about the pivot shaft 31 in conjunction with the rotation of the dustproof cover 10. It is provided with a photosensor 20 for detecting the opening and closing of the. According to the present invention, the photo sensor 20 detects whether the dust cover 10 is opened or closed, and when the dust cover 10 is opened, by stopping the operation of the printer and warning the user, the main body during the printing operation ( 1) It can prevent the printer from malfunctioning due to foreign substance being injected inside.
Description
본 발명은 인쇄용지에 화상을 인쇄하는 프린터에 관한 것으로서, 보다 상세하게는 프린터 내부로 인쇄용지를 공급하는 급지장치에 관한 것이다.The present invention relates to a printer for printing an image on printing paper, and more particularly, to a paper feeding device for supplying printing paper into a printer.
일반적으로 프린터는, 인쇄용지를 프린터 내부로 이송하는 급지장치와, 이송된 인쇄용지에 화상을 인쇄하는 현상장치와, 인쇄가 완료된 용지를 프린터 외부로 배출하는 배지장치를 구비한다.In general, a printer includes a paper feeding device for transferring printing paper into the printer, a developing device for printing an image on the transferred printing paper, and a discharge device for discharging the printed paper out of the printer.
도 1에 도시된 바와 같이, 프린터의 급지장치는, 다수 매의 인쇄용지(3)를 적층하여 수납하는 급지카세트(2)와, 급지카세트(2)로부터 낱장의 인쇄용지(3)를 추출하여 프린터 본체(1) 내부로 이송하는 급지롤러(4)와, 급지롤러(4)의 외주면에 접촉되도록 설치되어 급지롤러(4)를 통과하는 인쇄용지(4)를 가압하는 백업롤러(5)와, 회전축(11)을 중심으로 회동하여 급지카세트(2)의 상부를 선택적으로 개방 또는 폐쇄하는 방진커버(10)를 구비한다.As shown in FIG. 1, the paper feeding device of the printer extracts a paper cassette 2 for stacking and storing a plurality of sheets of printing paper 3, and extracts a single sheet of printing paper 3 from the paper cassette 2. A feed roller 4 for conveying the inside of the printer main body 1, a backup roller 5 installed to contact the outer circumferential surface of the feed roller 4, and pressurizing the printing paper 4 passing through the feed roller 4; And a dustproof cover 10 that pivots about the rotary shaft 11 to selectively open or close the upper portion of the paper feed cassette 2.
방진커버(10)는 급지카세트(2)의 상부를 밀폐함으로써, 외부로부터 프린터 본체(1) 내부로 먼지나 이물질 등이 침투하는 것을 방지한다. 한편, 급지카세트(2) 내의 인쇄용지(3)가 모두 소진되었을 경우, 사용자는 방진커버(10)를 화살표 방향(즉, 시계방향)으로 회동시켜 개방한 다음, 급지카세트(2)에 새로운 인쇄용지(3)를 적재한다.The dustproof cover 10 seals the upper portion of the paper feed cassette 2, thereby preventing dust or foreign matter from penetrating into the printer body 1 from the outside. On the other hand, when the printing paper 3 in the paper cassette 2 is exhausted, the user rotates the dust cover 10 in the direction of the arrow (ie, clockwise) to open it, and then prints a new print on the paper cassette 2. Load the paper (3).
그런데, 일반적인 프린터에서는, 방진커버(10)가 개방되어 있는 상태에서도 인쇄가 가능하게 되어 있다. 따라서, 사용자가 급지카세트(2)에 인쇄용지(3)를 적재한 후에 실수로 방진커버(10)를 닫아 급지카세트(2)의 상부를 밀폐하지 않은 상태에서 인쇄 작업이 수행되면, 본체(1) 내부로 볼펜 등과 같은 이물질이 투입되어 프린터의 치명적인 고장을 일으킬 수 있다는 문제점이 있다.By the way, in a general printer, printing is possible even when the dustproof cover 10 is open. Therefore, after the user loads the printing paper 3 into the paper cassette 2, if the dust cover 10 is inadvertently closed and the print job is performed without sealing the upper part of the paper cassette 2, the main body 1 ) There is a problem that a foreign matter such as a ballpoint pen is introduced into the printer, which may cause a fatal breakdown of the printer.
본 발명은 상기와 같은 문제점을 해결하기 위하여 안출된 것으로서, 방진커버의 개폐 여부를 감지하여 방진커버가 폐쇄되어 있는 상태에서만 인쇄작업이 이루어지게 함으로써, 인쇄 중에 이물질이 프린터 내부로 침투되는 것을 방지할 수 있는 급지장치를 제공하는 데 목적이 있다.The present invention has been made to solve the above problems, by detecting the opening or closing of the dust cover to ensure that the print job is made only when the dust cover is closed, to prevent foreign matter from penetrating into the printer during printing. It is an object of the present invention to provide a paper feeder.
도 1은 일반적인 프린터의 급지장치를 개략적으로 나타낸 측단면도.1 is a side cross-sectional view schematically showing a paper feeding device of a typical printer.
도 2는 본 발명에 따른 프린터의 급지장치를 나타낸 측단면도.Figure 2 is a side cross-sectional view showing a paper feeding device of the printer according to the present invention.
도 3은 도 2의 급지장치에서 방진커버의 개폐를 검출하기 위한 장치를 확대하여 도시한 측단면도.Figure 3 is an enlarged side cross-sectional view showing a device for detecting the opening and closing of the dust cover in the paper feeding device of FIG.
도 4는 도 2의 급지장치에서 방진커버가 열린 상태를 나타낸 측단면도.Figure 4 is a side cross-sectional view showing a dust cover open state in the paper feeding device of FIG.
< 도면의 주요 부분에 대한 부호의 설명 ><Description of Symbols for Main Parts of Drawings>
1 : 프린터 본체 2 : 급지카세트1: printer body 2: paper cassette
3 : 인쇄용지 10 : 방진커버3: printing paper 10: dust cover
20 : 포토센서 21 : 발광부20: photosensor 21: light emitting unit
22 : 수광부 30 : 액추에이터22: light receiver 30: actuator
40 : 압축코일 스프링40: compression coil spring
상기와 같은 본 발명의 목적은, 급지롤러의 회전구동시 급지구를 통해 프린터 본체의 내부로 이송되는 다수 매의 인쇄용지를 수납하도록 상기 프린터 본체의 급지구에 인접하게 설치되는 급지카세트와, 상기 급지카세트에 수납된 인쇄용지와 상기 프린터 본체 사이의 틈새를 선택적으로 개폐하도록 상기 프린터 본체에 회전축을 중심으로 회동가능하게 설치되는 방진커버 및 상기 방진커버에 의한 상기 틈새의 개폐여부를 검출하는 검출수단을 포함하는 프린터의 급지장치를 제공함으로써 달성된다.An object of the present invention as described above, the paper feed cassette is installed adjacent to the paper feed port of the printer body to accommodate a plurality of sheets of printing paper conveyed into the interior of the printer body through the paper feed port during the rotation of the paper feed roller, and Detection means for detecting the opening and closing of the gap by the dust cover and the dust cover is installed rotatably around the rotating shaft to selectively open and close the gap between the printing paper stored in the paper feed cassette and the printer body. It is achieved by providing a paper feeding device of a printer comprising a.
여기서, 상기 검출수단은, 상기 방진커버의 회동에 연동하여 피봇축을 중심으로 회동하는 액추에이터와, 상기 액추에이터의 회동 위치를 검출함으로써 상기 방진커버의 개폐를 감지하는 센서를 포함한다. 상기 액추에이터는 상기 방진커버와 상기 센서 사이에 설치되며, 상기 방진커버가 개폐됨에 따라서 양단이 상기 방진커버 및 상기 센서와 선택적으로 접촉한다.Here, the detecting means includes an actuator that rotates about a pivot axis in conjunction with the rotation of the dust cover, and a sensor that detects the opening and closing of the dust cover by detecting a rotation position of the actuator. The actuator is installed between the dust cover and the sensor, and both ends selectively contact the dust cover and the sensor as the dust cover is opened and closed.
한편, 상기 액추에이터의 일단에는 상기 액추에이터의 타단을 상기 센서와 상시 접촉되도록 바이어스 하는 스프링이 설치된 것이 바람직하다.On the other hand, it is preferable that a spring is provided at one end of the actuator to bias the other end of the actuator to be in constant contact with the sensor.
상기 센서로는 포토센서를 사용하는 것이 바람직하며, 상기 액추에이터는 상기 방진커버가 개방위치에 있을 때, 상기 포토센서의 발광부와 수광부를 차단한다.Preferably, a photo sensor is used as the sensor, and the actuator blocks the light emitting portion and the light receiving portion of the photosensor when the dust cover is in the open position.
본 발명에 따른 급지장치에 의하면, 포토센서에서 방진커버의 개폐여부를 감지하여, 방진커버가 개방되어 있을 때는 프린터의 작동을 중지하고 사용자에게 경고를 함으로써, 인쇄 작업 중에 프린터 내부로 이물질이 투입되어 프린터가 고장나는 것을 방지할 수 있다.According to the paper feeding apparatus according to the present invention, by detecting whether the dust cover is opened or closed by the photosensor, when the dust cover is open by stopping the operation of the printer to warn the user, foreign matter is introduced into the printer during the printing operation The printer can be prevented from malfunctioning.
이하, 첨부된 도면을 참조하여 본 발명의 바람직한 실시예를 상세하게 설명한다. 다만, 종래 기술과 동일한 구성요소에 대해서는 동일한 참조부호를 부여하며, 그에 대한 상세한 설명은 생략한다.Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the present invention. However, the same reference numerals are assigned to the same components as the prior art, and detailed description thereof will be omitted.
도 2에 도시된 바와 같이, 본 발명에 따른 급지장치는, 다수매의 인쇄용지(3)를 적층하여 수납하는 급지카세트(2)와, 급지카세트(2)로부터 낱장의 인쇄용지(3)를 추출하여 프린터 본체(1) 내부로 이송하는 급지롤러(4)와, 급지롤러(4)의 외주면에 접촉되도록 설치되어 급지롤러(4)를 통과하는 인쇄용지(3)를 가압하는 백업롤러(5)와, 회전축(11)을 중심으로 회동하여 급지카세트(2)에 수납된 인쇄용지(3)과 프린터 본체(1) 사이에 형성되는 틈새를 선택적으로 개방 또는 폐쇄하는 방진커버(10)를 구비한다.As shown in FIG. 2, the paper feeding apparatus according to the present invention includes a paper feed cassette 2 for stacking a plurality of print papers 3 and storing a sheet of print paper 3 from the paper cassette 2. A feed roller 4 which is extracted and conveyed into the printer body 1, and a backup roller 5 which is installed to contact the outer circumferential surface of the feed roller 4 and presses the printing paper 3 passing through the feed roller 4; ), And a dustproof cover 10 that rotates about the rotary shaft 11 and selectively opens or closes a gap formed between the printing paper 3 stored in the paper feed cassette 2 and the printer body 1. do.
또한, 급지장치는, 방진커버(10)의 개폐 여부를 검출하기 위한 검출장치로서, 포토센서(20)와, 방진커버(10)와 포토센서(20) 사이에 피봇축(31)을 중심으로 회동 가능하게 설치된 액추에이터(30)를 구비한다.In addition, the paper feeding device is a detection device for detecting whether the dustproof cover 10 is opened or closed, and has a pivot axis 31 between the photosensor 20 and the dustproof cover 10 and the photosensor 20. The actuator 30 is provided so that rotation is possible.
도 3에 도시된 바와 같이, 액추에이터(30)는 피봇축(31)을 중심으로 회동하여, 그 일단(32)은 방진커버(10)의 하단부와 선택적으로 접촉되며, 타단(33)은 포토센서(20)와 선택적으로 접촉된다. 액추에이터(30)의 일단(32)은, 방진커버(10)가 폐쇄위치에 있을 때 방진커버(10)의 하단부와 접촉되며, 방진커버(10)가 개방위치(즉, 도 3에서 점선으로 도시되어 있는 위치)에 있을 때는 방진커버(10)로부터 이격된다. 한편, 액추에이터(30)의 타단(33)은, 방진커버(10)가 폐쇄위치에 있을 때 포토센서(20)와 이격되며, 방진커버(10)가 개방위치에 있을 때 포토센서(20)와 접촉된다.As shown in FIG. 3, the actuator 30 rotates about the pivot shaft 31, and one end 32 is selectively in contact with the lower end of the dustproof cover 10, and the other end 33 is a photo sensor. And optionally in contact with (20). One end 32 of the actuator 30 is in contact with the lower end of the dustproof cover 10 when the dustproof cover 10 is in the closed position, and the dustproof cover 10 is shown in an open position (that is, as indicated by a dotted line in FIG. 3). Position) is spaced apart from the dustproof cover 10. On the other hand, the other end 33 of the actuator 30 is spaced apart from the photosensor 20 when the dust cover 10 is in the closed position, and the photosensor 20 when the dust cover 10 is in the open position. Contact.
액추에이터(30)의 일단(32)에는 압축코일 스프링(40)이 설치된다. 이 압축코일 스프링(40)에 의하여 액추에이터(30)의 타단(33)은 포토센서(20)와 접촉되는 방향으로 바이어스 된다.One end 32 of the actuator 30 is provided with a compression coil spring (40). The other end 33 of the actuator 30 is biased in the direction of contact with the photosensor 20 by the compression coil spring 40.
포토센서(20)는 발광부(21)와 수광부(22)를 구비한다. 액추에이터(30)의 타단(33)은 포토센서(20)와의 접촉 시에 발광부(21)와 수광부(22) 사이에 위치함으로써, 발광부(21)로부터 수광부(22)로 주사되는 빛을 차단한다.The photosensor 20 includes a light emitter 21 and a light receiver 22. The other end 33 of the actuator 30 is positioned between the light emitting unit 21 and the light receiving unit 22 in contact with the photosensor 20, thereby blocking the light scanned from the light emitting unit 21 to the light receiving unit 22. do.
한편, 포토센서(20)는 발광부(21)와 수광부(22) 사이의 차단 여부에 따라 고(High)전압 또는 저(Low)전압을 제어부(50)로 출력한다. 제어부(50)는 포토센서(20)로부터 출력된 전압의 고저에 따라 방진커버(10)의 개폐 여부를 판단하여, 급지롤러(4)를 비롯한 프린터의 각종 기기의 작동을 제어하게 된다.Meanwhile, the photosensor 20 outputs a high voltage or a low voltage to the controller 50 depending on whether the light emitter 21 and the light receiver 22 are blocked. The controller 50 determines whether the dustproof cover 10 is opened or closed according to the height of the voltage output from the photosensor 20, and controls the operation of various devices of the printer including the paper feed roller 4.
이상과 같이 구성된 급지장치의 작동 관계는 다음과 같다.The operation relationship of the paper feeder configured as described above is as follows.
먼저, 도 2에 도시된 바와 같이, 방진커버(10)가 폐쇄위치에 있을 때는, 액추에이터(30)의 일단(32)이 방진커버(10)의 하단부에 가압 접촉됨으로써, 한편, 압축코일 스프링(40)은 압축되며, 액추에이터(30)의 타단은(33)이 포토센서(20)로부터 이격된다. 따라서, 포토센서(20)의 발광부(21)로부터 주사된 빛은 수광부(22)로 전달되며, 포토센서(20)에서는 제어부(50)로 저(Low)전압을 출력한다. 이렇게 포토센서(20)로부터 저전압이 입력되면, 제어부(50)는 방진커버(10)가 폐쇄된 것으로 판단하여, 프린터를 정상적으로 작동되도록 제어한다.First, as shown in FIG. 2, when the dustproof cover 10 is in the closed position, one end 32 of the actuator 30 is pressed against the lower end of the dustproof cover 10, while the compression coil spring ( 40 is compressed, and the other end 33 of the actuator 30 is spaced apart from the photosensor 20. Therefore, the light scanned from the light emitting unit 21 of the photosensor 20 is transmitted to the light receiving unit 22, the photosensor 20 outputs a low voltage to the controller 50. When the low voltage is input from the photosensor 20, the controller 50 determines that the dust cover 10 is closed, and controls the printer to operate normally.
도 2의 상태에서, 방진커버(10)가 회전축(11)을 중심으로 시계 방향으로 회전하여, 도 4에 도시된 바와 같이, 개방위치에 있게 되면, 액추에이터(30)의 일단은(32)은 방진커버(10)와 이격된다. 따라서, 압축코일 스프링(40)의 탄성복원력에 의하여 액추에이터(30)가 피봇축(31)을 중심으로 반시계 방향으로 회전함으로써, 포토센서(20)의 발광부(21)와 수광부(22)는 액추에이터(30)의 타단(33)에 의해 차단된다. 이때, 포토센서(20)는 제어부(50)로 고(High)전압을 출력한다. 이렇게 포토센서(20)로부터 고전압이 입력되면, 제어부(50)는 방진커버(10)가 개방된 것으로 판단하여, 프린터의 작동을 중지하고, 도시하지 않은 조작패널에 구비된 발광다이오드(LED)를 점멸되도록 하거나, 디스플레이 창에 경고메시지가 표시되도록 함으로써 사용자에게 방진커버(10)가 개방되어 있음을 알린다.In the state of FIG. 2, when the dust cover 10 rotates clockwise around the rotation shaft 11 and is in an open position as shown in FIG. 4, one end 32 of the actuator 30 is The dust cover 10 is spaced apart. Therefore, the actuator 30 rotates counterclockwise around the pivot shaft 31 by the elastic restoring force of the compression coil spring 40, whereby the light emitting portion 21 and the light receiving portion 22 of the photosensor 20 It is blocked by the other end 33 of the actuator 30. In this case, the photosensor 20 outputs a high voltage to the controller 50. When the high voltage is input from the photosensor 20 in this way, the control unit 50 determines that the dust cover 10 is open, stops the operation of the printer, the light emitting diode (LED) provided in the control panel (not shown) By blinking or by displaying a warning message on the display window to inform the user that the dust cover 10 is open.
이상에서 설명한 바와 같이, 본 발명에 의하면, 포토센서(20)에서 방진커버(10)의 개폐여부를 감지하여, 방진커버(10)가 개방되어 있을 때는 프린터의 작동을 중지하고 사용자에게 경고를 함으로써, 인쇄 작업 중에 본체(1) 내부로 이물질이 투입되어 프린터가 고장나는 것을 방지할 수 있다.As described above, according to the present invention, by detecting the opening and closing of the dust cover 10 in the photosensor 20, by stopping the operation of the printer when the dust cover 10 is opened by warning the user In addition, foreign matter is introduced into the main body 1 during the printing operation to prevent the printer from being broken.
또한, 본 발명에 의하면, 포토센서(20)와, 방진커버(10)에 의해 가압되어 회동하는 액추에이터(30)를 이용하여 방진커버(10)의 개폐여부를 검출하므로, 간단한 구조로 방진커버(10)의 개폐여부를 확실하게 검출할 수 있다는 장점이 있다.In addition, according to the present invention, since the dustproof cover 10 is opened and closed by using the photosensor 20 and the actuator 30 which is pressed by the dustproof cover 10 and rotated, the dustproof cover ( 10) there is an advantage that it can be surely detected whether the opening and closing.
이상에서는 본 발명의 특정의 바람직한 실시예에 대하여 도시하고 또한 설명하였다. 그러나, 본 발명은 상술한 실시예에 한정되지 아니하며, 특허청구의 범위에서 청구하는 본 발명의 요지를 벗어남이 없이 당해 발명이 속하는 기술분야에서 통상의 지식을 가진 자라면 누구든지 다양한 변형실시가 가능할 것이다.In the above, certain preferred embodiments of the present invention have been illustrated and described. However, the present invention is not limited to the above-described embodiments, and various modifications can be made by those skilled in the art without departing from the gist of the present invention as claimed in the claims. will be.
즉, 상술한 실시예에서는, 액추에이터(30)의 회동을 검출하기 위하여 포토센서(20)를 사용한 것을 개시하였으나, 액추에이터(30)의 타단(33)과 선택적으로 접촉하는 리미트 스위치와 같은 접촉식 센서를 사용하는 것도 가능하다. 또한, 센서(20)와 방진커버(10) 사이에 액추에이터(30)를 개재시키지 않고, 방진커버(10)의 일단이 직접 센서(20)와 선택적으로 접촉하도록 구성하는 것도 가능하다.That is, in the above-described embodiment, although the photosensor 20 is used to detect the rotation of the actuator 30, a contact sensor such as a limit switch selectively contacting the other end 33 of the actuator 30 is disclosed. It is also possible to use. In addition, without the actuator 30 interposed between the sensor 20 and the dust cover 10, it is also possible to be configured such that one end of the dust cover 10 is in direct contact with the sensor 20 selectively.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2001-0051089A KR100421993B1 (en) | 2001-08-23 | 2001-08-23 | Paper feeding device of printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2001-0051089A KR100421993B1 (en) | 2001-08-23 | 2001-08-23 | Paper feeding device of printer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20030016992A KR20030016992A (en) | 2003-03-03 |
| KR100421993B1 true KR100421993B1 (en) | 2004-03-11 |
Family
ID=27720572
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR10-2001-0051089A Expired - Fee Related KR100421993B1 (en) | 2001-08-23 | 2001-08-23 | Paper feeding device of printer |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR100421993B1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101415988B1 (en) | 2013-09-27 | 2014-07-09 | 디에스글로벌 (주) | Mobile printing with double-feed prevention switchgear appointed |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60262733A (en) * | 1984-06-07 | 1985-12-26 | Fuji Xerox Co Ltd | Sheets feed cassette for photoelectronic copying machine |
| JPS6422735A (en) * | 1987-06-26 | 1989-01-25 | Xerox Corp | Paper feeder for copier |
| JPH0597278A (en) * | 1991-10-03 | 1993-04-20 | Fuji Xerox Co Ltd | Remaining sheet amount detector |
| JPH09226980A (en) * | 1996-02-22 | 1997-09-02 | Sharp Corp | Automatic document feeder having filed document detecting function |
| JP2001106387A (en) * | 1999-10-14 | 2001-04-17 | Ricoh Co Ltd | Residual sheet amount detecting device |
-
2001
- 2001-08-23 KR KR10-2001-0051089A patent/KR100421993B1/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60262733A (en) * | 1984-06-07 | 1985-12-26 | Fuji Xerox Co Ltd | Sheets feed cassette for photoelectronic copying machine |
| JPS6422735A (en) * | 1987-06-26 | 1989-01-25 | Xerox Corp | Paper feeder for copier |
| JPH0597278A (en) * | 1991-10-03 | 1993-04-20 | Fuji Xerox Co Ltd | Remaining sheet amount detector |
| JPH09226980A (en) * | 1996-02-22 | 1997-09-02 | Sharp Corp | Automatic document feeder having filed document detecting function |
| JP2001106387A (en) * | 1999-10-14 | 2001-04-17 | Ricoh Co Ltd | Residual sheet amount detecting device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101415988B1 (en) | 2013-09-27 | 2014-07-09 | 디에스글로벌 (주) | Mobile printing with double-feed prevention switchgear appointed |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20030016992A (en) | 2003-03-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9387708B2 (en) | Roll paper transportation device and printing apparatus | |
| KR100503797B1 (en) | Paper feeding device | |
| JPH10324428A (en) | Automatic paper feeder | |
| KR100421993B1 (en) | Paper feeding device of printer | |
| KR20040025172A (en) | Paper dectecting apparatus for duplex image forming machine | |
| JP3911933B2 (en) | Safety device | |
| US9409406B2 (en) | Recording apparatus with mounting-removing mechanism for ink cartridge | |
| JP2002179276A (en) | Sheet feeding mechanism of automatic document conveying device | |
| JP2008105303A (en) | Rotor protecting apparatus | |
| JP3668711B2 (en) | Image forming apparatus | |
| JP6248541B2 (en) | Image forming apparatus | |
| JPH041160Y2 (en) | ||
| KR100263091B1 (en) | Line feeding motor control method when no paper (NO-PAPER) | |
| JP3283385B2 (en) | Printer | |
| KR200221576Y1 (en) | Printer Assembly Recognition Device of ATM | |
| KR200172603Y1 (en) | Apparatus for sensing developer and paper of image forming device | |
| JP2000118792A (en) | Paper remaining amount detection device of paper feeding device | |
| JPH04112066A (en) | Line printer | |
| KR200145518Y1 (en) | Printer Feeder | |
| KR200169761Y1 (en) | Image forming apparatus | |
| JP2570944Y2 (en) | Paper cassette | |
| KR940002123B1 (en) | Paper-feeding table by a front loading type | |
| KR100377368B1 (en) | Apparatus for sensing a feeding paper of printer | |
| JP3570155B2 (en) | Printer and control method thereof | |
| JPH09172512A (en) | Image reader |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A201 | Request for examination | ||
| PA0109 | Patent application |
Patent event code: PA01091R01D Comment text: Patent Application Patent event date: 20010823 |
|
| PA0201 | Request for examination | ||
| PG1501 | Laying open of application | ||
| E902 | Notification of reason for refusal | ||
| PE0902 | Notice of grounds for rejection |
Comment text: Notification of reason for refusal Patent event date: 20030618 Patent event code: PE09021S01D |
|
| E701 | Decision to grant or registration of patent right | ||
| PE0701 | Decision of registration |
Patent event code: PE07011S01D Comment text: Decision to Grant Registration Patent event date: 20040211 |
|
| GRNT | Written decision to grant | ||
| PR0701 | Registration of establishment |
Comment text: Registration of Establishment Patent event date: 20040225 Patent event code: PR07011E01D |
|
| PR1002 | Payment of registration fee |
Payment date: 20040226 End annual number: 3 Start annual number: 1 |
|
| PG1601 | Publication of registration | ||
| FPAY | Annual fee payment |
Payment date: 20070130 Year of fee payment: 4 |
|
| PR1001 | Payment of annual fee |
Payment date: 20070130 Start annual number: 4 End annual number: 4 |
|
| LAPS | Lapse due to unpaid annual fee | ||
| PC1903 | Unpaid annual fee |