KR940010356B1 - Led position decision device in led printer - Google Patents

Led position decision device in led printer Download PDF

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Publication number
KR940010356B1
KR940010356B1 KR1019910008354A KR910008354A KR940010356B1 KR 940010356 B1 KR940010356 B1 KR 940010356B1 KR 1019910008354 A KR1019910008354 A KR 1019910008354A KR 910008354 A KR910008354 A KR 910008354A KR 940010356 B1 KR940010356 B1 KR 940010356B1
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South Korea
Prior art keywords
led
lever
printer
led head
torsion spring
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KR1019910008354A
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Korean (ko)
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KR920021325A (en
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구도연
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삼성전자 주식회사
정용문
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Priority to KR1019910008354A priority Critical patent/KR940010356B1/en
Publication of KR920021325A publication Critical patent/KR920021325A/en
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Publication of KR940010356B1 publication Critical patent/KR940010356B1/en

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41JTYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/435Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of radiation to a printing material or impression-transfer material
    • B41J2/447Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of radiation to a printing material or impression-transfer material using arrays of radiation sources
    • B41J2/45Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of radiation to a printing material or impression-transfer material using arrays of radiation sources using light-emitting diode [LED] or laser arrays

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  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Printers Or Recording Devices Using Electromagnetic And Radiation Means (AREA)
  • Exposure Or Original Feeding In Electrophotography (AREA)

Abstract

The apparatus obtains stable video in printing by making the LED situated at an exact distance from the photosensitive drum surface of LED printer and heightens a dense degree. In the appartus having an LED head array, a first lever is bent by a given angle and set to a torsion spring of the upper main body by an elastic support; and an LED lever is inserted into one flute, supported elastically on the torsion spring, and has the LED head array on side end, thereby so as for the LED head array to be turned and moved when the upper cover is opened or closed.

Description

LED프린터의 LED위치 결정장치LED positioning device of LED printer

제 1 도는 종래 LED와 감광체의 위치결정 구조의 상태 횡단면도.1 is a state cross-sectional view of a positioning structure of a conventional LED and a photosensitive member.

제 2 도는 본 발명의 개략 단면도.2 is a schematic cross-sectional view of the present invention.

제 3 도는 본 발명의 요부 사시도.3 is a perspective view of main parts of the present invention.

제 4 도는 본 발명의 요부 작동도.4 is an essential operation of the present invention.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

12 : 제1레버 15, 25 : 토션스프링12: first lever 15, 25: torsion spring

20 : LED헤드 21 : 고정홈20: LED head 21: fixing groove

22 : LED레버 30 : 레버용 스토퍼22: LED lever 30: stopper for the lever

31 : 걸림편31: hanging piece

본 발명은 프린터의 감광드럼 표면으로부터 LED가 정확한 거리에 위치하도록 하여 프린트시 안정된 화상을 얻도록 하는 한편, 기기의 조밀도를 높여 소형화가 가능토록 한 LED프린터의 LED위치 결정장치에 관한 것이다.The present invention relates to an LED positioning device for an LED printer, which allows the LED to be positioned at an accurate distance from the surface of the photosensitive drum of the printer to obtain a stable image during printing, while minimizing the density of the device.

종래 LED프린터에서는 LED헤드(1)와 감광드럼(2)과의 거리를 일정하게 유지하기 위하여 LED헤드(1)를 본체에 고정시키되 양단에 회전 로울러(3)를 부착하여 감광드럼(2)에 당접하게 설치하여 회전시킴으로서, 상기 회전 로울러(3)의 반경에 의해 LED헤드(1)가 감광드럼(2)으로부터 일정한 거리를 유지토록 하였다.In the conventional LED printer, in order to maintain a constant distance between the LED head (1) and the photosensitive drum (2), the LED head (1) is fixed to the main body, attached to the rotating roller (3) at both ends to the photosensitive drum (2) By rotating in contact with each other, the radius of the rotary roller 3 causes the LED head 1 to maintain a constant distance from the photosensitive drum 2.

그러나, 이와 같이 구성되는 종래 장치는 감광드럼(2)의 표면에서 회전로울러(3)가 직접 마찰하면서 회전하므로, 미세하게 유동되는 경우가 발생하여 LED헤드(1)에서 발광된 빛이 감광드럼(2) 표면에 초점이 맺히지 않으므로 불안정하여서 안정된 화상을 얻기가 어려운 문제점이 있었다.However, in the conventional device configured as described above, since the rotating roller 3 rotates while directly rotating the friction roller 3 on the surface of the photosensitive drum 2, the light emitted from the LED head 1 may be caused to flow finely. 2) There is a problem that it is difficult to obtain a stable image because it is unstable because the surface is not focused.

종래 LED프린터의 또다른 문제점으로는 LED를 지지하는 본체와 레버가 고정되어 있어서, 프린터 자체내의 공간의 조밀하게 구성하여 이용할 수가 없었다.Another problem of the conventional LED printer is that the main body and the lever for supporting the LED is fixed, so that the space in the printer itself can not be densely constructed.

본 발명은 상기와 같은 문제점을 해결코자 안출된 것으로서, LED구조에 다수의 레버와 토션스프링을 이용하여 LED헤드를 본체에 밀착시키므로서 LED헤드와 감광체와의 거리를 일정하게 유지하는 LED프린터의 LED위치 결정장치를 제공하는데 본 발명의 목적이 있다.The present invention has been made to solve the above problems, by using a plurality of levers and torsion springs in the LED structure to close the LED head to the main body of the LED printer to maintain a constant distance between the LED head and the photosensitive member It is an object of the present invention to provide a positioning device.

본 발명의 다른 목적은 프린터 상부 카바내에서 LED헤드를 회전 가능케하여 현 상기 착탈을 용이토록함과 동시에 LED헤드를 보호하며 프린터의 조밀도를 높여 프린터의 소형화가 가능토록 한 LED프린터의 LED위치 결정장치를 제공하는데 있다.Another object of the present invention is to enable the LED head in the upper cover of the printer to facilitate the current detachment and at the same time to protect the LED head and increase the density of the printer LED positioning of the LED printer to enable the printer downsizing To provide a device.

상기와 같은 목적을 달성하기 위하여 본 발명은 기기 상부몸체에 설치되며 토션 스프링에 의해 탄지되는 레버의 일측끝단에 홈을 형성하며 상기 홈안에 끼워지는 LED헤드 어레이를 토션스프링으로 탄지하여 LED헤드 어레이가 감광드럼과 일정한 거리를 유지시킬 수 있도록 함과 동시에 상부 카바를 열었을때에는 LED헤드가 상부 카바 내부로 몰입되어 LED헤드 어레이를 보호할 수 있도록 함을 특징으로 한다.In order to achieve the above object, the present invention is installed in the upper body of the device and forms a groove at one end of the lever supported by the torsion spring, and the LED head array by holding the LED head array fitted in the groove with a torsion spring. In addition to maintaining a constant distance from the photosensitive drum, when the upper cover is opened, the LED head is immersed into the upper cover to protect the LED head array.

이하 본 발명의 구성 및 작용효과를 첨부한 도면에 의거하여 상세히 설명하면 다음과 같다.Hereinafter will be described in detail with reference to the accompanying drawings the configuration and effect of the present invention.

우선 제 3 도를 참조하여 본 발명의 구성을 설명하면, 중심축(11)을 기준으로 소정의 굴절부를 갖는 제1레버(12)를 일측 끝단부는 둥글게 형성하고 타측 끝단부는 홈(13)을 형성하여서 기기 본체에 형성된 샤프트 홀에 레버의 중심축(11)을 삽입하되 상기 중심축을 정점으로 탄성을 갖는 토션스프링(15)을 이용하여, 상기토션 스프링의 일측 끝단은 기기 본체에 형성된 스프링 핀(16)에 걸리게 하고 타측 끝단은 레버의 끝단부가 둥굴에 형성된 측의 레버 옆단부에 형성된 스프링 핀(17)에 고정하여서 상기 기기본체와 제1레버(12)를 연결하되, 토션스프링(15)의 스프링력이 레버의 중심축을 기준으로 스프링 핀(17)을 하향 이동시키려는 탄성을 갖도록 한다.First, the configuration of the present invention will be described with reference to FIG. 3. One end of the first lever 12 having a predetermined refractive portion with respect to the central axis 11 is rounded and the other end forms the groove 13. By inserting the central axis 11 of the lever into the shaft hole formed in the device body, using a torsion spring (15) having elasticity with the center axis as a peak, one end of the torsion spring is a spring pin (16) formed in the device body ) And the other end is fixed to a spring pin 17 formed at the side of the lever at the end of the lever formed on the round end to connect the device body and the first lever 12, but the spring of the torsion spring 15 The force is such that it has the elasticity to move the spring pin 17 downward with respect to the center axis of the lever.

상기 제1레버(12)의 홈(13)에는 끝단면에 LED헤드(20)를 구비하며 상기 LED헤드(20)의 내측 방향으로는 고정홈(21)을 형성하고 있는 LED 레버(22)를 끼우되 상기 제1레버(12)와 LED 레버(22)에 스프링 핀(23,24)을 형성하여서 토션스프링(25)으로 연결하되 상기 로션스프링(25)의 스프링력은 LED헤드(21)를 하향 이동시키려는 탄성을 갖도록 설치한다.The groove 13 of the first lever 12 includes an LED head 22 having an LED head 20 at an end surface thereof and a fixing groove 21 formed in an inner direction of the LED head 20. The spring levers 23 and 24 are formed on the first lever 12 and the LED lever 22 to be connected to the torsion springs 25, and the spring force of the lotion springs 25 is used to connect the LED heads 21. Install to have elasticity to move downward.

한편, 상기 제1레버(12)의 둥글게 형성된 끝단부가 걸리도록 기기내부에는 레버용 스토퍼(30)를 설치하며, 기기내측에 위치하는 현상기의 일단에 걸림편(31)을 형성하여서 상기 LED레버(22)에 형성된 고정홈(21)이 걸리도록 구성한다.Meanwhile, a lever stopper 30 is installed in the inside of the device so that the rounded end of the first lever 12 is caught, and a latching piece 31 is formed at one end of the developing device located inside the device so that the LED lever ( It is configured to take the fixing groove 21 formed in 22.

상기 제1레버(12)의 끝단부가 걸릴수 있도록 구성한 레버용 스토퍼(30) 및 현 상기의 걸림편과 LED레버(22)에 형성된 고정홈과의 위치관계를 첨부한 제 2 도에서 보이고 있다.2 shows a positional relationship between a stopper 30 for a lever configured to catch the end of the first lever 12 and a string and a fixing groove formed on the LED lever 22.

상기와 같이 구성된 본 발명의 작동효과를 첨부한 도면 제 3 도 및 제 4 도를 참조로 하여 상세히 살펴보면 하기와 같다.The operation effects of the present invention configured as described above will be described in detail with reference to FIGS. 3 and 4.

우선 제 2 도를 참조로 상기와 같은 구성으로 형성된 본 발명을 보면 LED헤드(20)가 현상기 본체에 지지되어 있는 상태로서 제1레버(12)의 둥글에 형성된 축의 끝단이 레버용 스토퍼(30)에 걸려 레버 중심축(11)을 기준으로 하향이동력을 가진 토션스프링(15)의 스프링력을 제어되면서 상기 제1레버의 중심축(11)을 기준으로 이면에 위치하여 일정홈에 LED레버(22)를 연결하고 있는 제1레버(12)의 LED레버(22)가 상향이동 하여 있는 상태에 있고, 상기 LED레버(22)는 상기 제1레버(12)의 홈에서 하향이동력을 지닌 토션스프링(25)의 스프링력에 의해 상기 제1레버(12)의 홈(13)내에서 하향 이동력을 갖게 되며 상기 LED레버의 하향이동력은 LED의 내측에 형성된 고정홈(21)이 현상기의 걸림편(31)에 걸리면서 제어되어 헤드(20)가 감광체와 소정의 거리를 유지하고 있는 상태이다.First, referring to the present invention formed in the above configuration with reference to FIG. 2, the end of the shaft formed in the round of the first lever 12 is in a state where the LED head 20 is supported by the developer main body. While controlling the spring force of the torsion spring (15) having a downward movement force relative to the lever center axis (11) is located on the back surface relative to the center axis (11) of the first lever LED lever in a certain groove ( The LED lever 22 of the first lever 12 connecting 22 is in a state of upward movement, and the LED lever 22 has a downward movement force in the groove of the first lever 12. The spring force of the spring 25 has a downward movement force in the groove 13 of the first lever 12, and the downward movement force of the LED lever is defined by the fixing groove 21 formed inside the LED. The state in which the head 20 is kept at a predetermined distance from the photosensitive member is controlled while being caught by the locking piece 31. All.

현상기의 교체 등을 이유로 상기와 같는 상태에서 기기본체를 열게되면 상부 본체(50)의 힌지(51)를 중심으로 상부본체(50)가 회전하면서 상부본체(50)에 연결된 제1레버(12)의 중심축(11)이 상부본체(50)와 일체화하여 상측으로 이동하고 이때 제1레버(12)의 레버용 스토퍼(30)에 걸려 있는 끝단이 상측으로 이동하여 레버용 스토퍼(30)와 이격되면서 상부본체(50)와 연결된 토션스프링(15)의 하향이동력을 가진 스프링력에 의해 제1레버(12)의 단부가 하향이동 하며 제1레버(12)의 중심축(11)을 기준으로 제1레버(12)의 하향이동하는 단부의 이면에 위치한 제1레버(12)의 LED레버(22)의 결착부가 상향이동하여 상기 제1레버(12)의 홈(13)에 연결된 LED레버(22)가 상향이동하여 감광체와 이격되면서 상부본체(50)의 내부로 인입되어 LED헤드(20)어레이가 외부 다른 물체와 접촉하는 것을 방지할수 있어 LED헤드(20)를 보호할 수 있게 된다.The first lever 12 connected to the upper main body 50 while the upper main body 50 rotates about the hinge 51 of the upper main body 50 when the apparatus main body is opened in the above state due to the replacement of the developer. Of the central shaft 11 is integrated with the upper body 50 and moves upwards, and at this time, the end of the lever stopper 30 of the first lever 12 is moved upward to be spaced apart from the lever stopper 30. While the end of the first lever 12 is moved downward by the spring force having the downward movement force of the torsion spring 15 connected to the upper body 50 and based on the central axis 11 of the first lever 12 The LED lever 22 connected to the groove 13 of the first lever 12 by moving the binding portion of the LED lever 22 of the first lever 12 located on the rear surface of the downwardly moving end of the first lever 12 moves upward. 22) is moved upward and spaced apart from the photosensitive member, and is drawn into the upper body 50 so that the LED head 20 array is in contact with other external objects. It is able to prevent it becomes possible to protect the LED array 20.

첨부한 제 4b 도는 상기 기기본체를 열었을 경우 LED와 감광체와의 이격된 상태를 도시한 것이다.4b shows a state in which the LED and the photosensitive member are separated from each other when the device body is opened.

따라서 상기와 같이 LED헤드(20)와 현상기가 이격된 상태에서 소정의 필요한 작업을 마친후 상부본체(50)를 닫게 되면 상부본체(50)와 연결된 제1레버(12)의 중심축(11)이 하향이동하고 상부본체(50)와 토션스프링(15)에 연결되어 토오션스프링(15)의 하향이동력을 받고 있는 제1레버(12)의 단부가 상부본체(50)와 일체화 하여 하향이동 하다가 레버용 스토퍼(30)에 걸리면서 하향이동력을 지닌 스프링력이 제어되면 제1레버(12)의 중심축(11)을 중심으로 이면에 위치하여 LED레버(22)를 연결하고 있는 단부가 기기 본체와 일체화 하여 하향이동함과 동시 이면이 스프링력으로 하향회전 이동하고 이에 하향이동력을 지닌 토션스프링(25)에 의해 연결된 LED레버(22)가 하향이동되다가 LED레버(22)에 형성된 고정홈이 하부본체에 형성된 걸림편(31)에 걸림으로서 다시 감광드럼(60)과 소정의 필요한 거리를 유지하게 된다. 이때 토션스프링(25)의 탄력에 LED레버(22)에 탄지되면서 걸림편(31)에 밀착된 상태이므로 유동이 방지 된다.Therefore, when the LED body 20 and the developer are separated from the upper body 50 after the predetermined work is completed as described above, the central axis 11 of the first lever 12 connected to the upper body 50 is formed. The end of the first lever 12 which is downwardly moved and connected to the upper body 50 and the torsion spring 15 and receives the downward movement force of the torsion spring 15 is integrated downwardly by the upper body 50. When the spring force with downward movement is controlled while being caught by the lever stopper 30, the end portion connected to the LED lever 22 is located on the back of the central axis 11 of the first lever 12. Fixed groove formed in the LED lever 22 after the LED lever 22 connected by the torsion spring 25 having the downward movement force is moved downward and at the same time the back surface is moved by the spring force and integrated with the main body downward The photosensitive photo is again caught by the locking piece 31 formed on the lower body. It maintains a column (60) and a predetermined required distance. At this time, since the state of the torsion spring 25 is in close contact with the engaging piece 31 while being tethered to the LED lever 22, the flow is prevented.

상기한 바와 같이 본 발명에 의하면 기기본체에서 상부카바를 열었을 때에는 LED헤드가 상부 카바내로 몰입되어 LED헤드를 보호할 수 있게 되면 상부카바를 닫았을 때에는 LED헤드가 감광드럼으로부터 일정한 거리를 유지할 수 있는 상태가 되어 감광드럼상에 초점을 맞출 수 있어 화상의 선명도를 높일 수 있게 된다.As described above, according to the present invention, when the upper cover is opened in the main body of the device, the LED head is immersed into the upper cover to protect the LED head. When the upper cover is closed, the LED head can maintain a constant distance from the photosensitive drum. In this state, the image can be focused on the photosensitive drum, thereby increasing the sharpness of the image.

Claims (2)

LED헤드 어레이를 구비하여 감광드럼에 화상을 기록하는 LED프린터의 LED헤드와 감광드럼 사이의 거리를 일정하게 유지하는 장치에 있어서, 소정각도로 굴절되어 있으며, 상부본체(50)에 토션스프링(15)에 탄지되도록 설치되는 제1레버(12)와, 상기 제1레버(12)의 일단의 홈(13)에 끼워지며 토션스프링(25)에 탄지되며 선단에 LED헤드어레이를 구비하는 LED 레버(22)를 설치하여 상부 카바를 여닫을 때 제1레버(12)의 끝단이 본체 하부에 설치된 레버용 스토퍼(30)에 밀착 또는 이격되면서 LED헤드(20) 어레이를 회동시킬 수 있도록 구성됨을 특징으로 하는 LED프린터의 LED위치 결정장치.In the device having an LED head array to maintain a constant distance between the LED head and the photosensitive drum of the LED printer for recording an image on the photosensitive drum, the device is refracted at a predetermined angle, the torsion spring (15) on the upper body (50) A first lever 12 installed to be supported by a thrust), and an LED lever fitted into a groove 13 of one end of the first lever 12 and supported by a torsion spring 25 and having an LED head array at a front end thereof; 22) when the upper cover is opened and closed, the end of the first lever 12 is configured to rotate the LED head 20 array while being in close contact or spaced to the lever stopper 30 installed in the lower body. LED positioning device of LED printer. 제 1 항에 있어서, 제1레버(12)의 선단에 형성되는 홈(13)이 LED레버(22)의 두께보다 넓게 형성하여 축(27)을 중심으로 유동함을 특징으로 하는 LED프린터의 LED위치 결정장치.The LED printer of claim 1, wherein the groove 13 formed at the tip of the first lever 12 is formed to be wider than the thickness of the LED lever 22 and flows around the shaft 27. Positioning device.
KR1019910008354A 1991-05-23 1991-05-23 Led position decision device in led printer KR940010356B1 (en)

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Application Number Priority Date Filing Date Title
KR1019910008354A KR940010356B1 (en) 1991-05-23 1991-05-23 Led position decision device in led printer

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Application Number Priority Date Filing Date Title
KR1019910008354A KR940010356B1 (en) 1991-05-23 1991-05-23 Led position decision device in led printer

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KR920021325A KR920021325A (en) 1992-12-18
KR940010356B1 true KR940010356B1 (en) 1994-10-22

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