KR930004868Y1 - Automatic adjustment apparatus of charging width in an electrophotographic copier - Google Patents
Automatic adjustment apparatus of charging width in an electrophotographic copier Download PDFInfo
- Publication number
- KR930004868Y1 KR930004868Y1 KR2019870024652U KR870024652U KR930004868Y1 KR 930004868 Y1 KR930004868 Y1 KR 930004868Y1 KR 2019870024652 U KR2019870024652 U KR 2019870024652U KR 870024652 U KR870024652 U KR 870024652U KR 930004868 Y1 KR930004868 Y1 KR 930004868Y1
- Authority
- KR
- South Korea
- Prior art keywords
- fixed
- charger housing
- automatic adjustment
- wire
- insulator
- Prior art date
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Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/02—Apparatus for electrographic processes using a charge pattern for laying down a uniform charge, e.g. for sensitising; Corona discharge devices
- G03G15/0208—Apparatus for electrographic processes using a charge pattern for laying down a uniform charge, e.g. for sensitising; Corona discharge devices by contact, friction or induction, e.g. liquid charging apparatus
- G03G15/0216—Apparatus for electrographic processes using a charge pattern for laying down a uniform charge, e.g. for sensitising; Corona discharge devices by contact, friction or induction, e.g. liquid charging apparatus by bringing a charging member into contact with the member to be charged, e.g. roller, brush chargers
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge
- G03G21/16—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements
- G03G21/1642—Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements for connecting the different parts of the apparatus
- G03G21/1647—Mechanical connection means
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- General Physics & Mathematics (AREA)
- Electrostatic Charge, Transfer And Separation In Electrography (AREA)
Abstract
내용 없음.No content.
Description
제1도는 본 고안 장치의 구성을 보인 분해 사시도.1 is an exploded perspective view showing the configuration of the device of the present invention.
제2도는 동상의 체결상태 사시도.2 is a perspective view of the frostbite state.
제3도는 복사용지의 크기별 대전상태를 설명하기 위한 설명도.3 is an explanatory diagram for explaining the state of charge for each size of copy paper.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
1 : 대전기 하우징 2 : 모터 브래키트1: charger housing 2: motor bracket
3 : 고정 절연체 5 : 가동절연체3: fixed insulator 5: movable insulator
6 : 플러그 7 : 단자6: plug 7: terminal
8 : 인장스프링 9 : 코로나 와이어8: tension spring 9: corona wire
10 : 가이드홈 11 : 와이어롤10: guide groove 11: wire roll
12 : 피니언 13 : 고정축12: pinion 13: fixed shaft
14 : 구동모터 15 : 구동축14: drive motor 15: drive shaft
16, 17 : 타이밍풀리 18 : 타이밍 벨트16, 17: timing pulley 18: timing belt
19 : 벨트 고정부 20 : 랙19: belt fixing part 20: rack
본 고안은 전자 사진 복사기의 대전폭 자동 조절장치에 관한 것으로, 특히 확대 및 축소 복사시에 복사용지의 크기에 따라 대전폭을 조절하여 대전함으로써 불필요한 부분이 대전되지 않도록 하는 대전폭 자동 조절장치에 관한 것이다.The present invention relates to a charge width automatic adjustment device of an electrophotographic photocopier, and more particularly, to a charge width automatic adjustment device that prevents unnecessary portions from charging by adjusting the charge width according to the size of copy paper during enlargement and reduction copying. will be.
종래 전자복사기의 대전기는 제3도와 같이 확대 축소복사시에 작은 싸이즈의 엽서(P)나 각각 규격이 다른 복사 용지(B5, A4, B4, A3)를 사용하는 경우에도 싸이즈에 관계없이 드럼표면 전체에 대전을 행하게 하여 축소시 빛이 들어가지 않는 부분이 발생하고 이 부분이 현상되어 토너 소모량이 증대하게 되어 있다. 따라서 종래에는 이를 방지하기 위하여 확대 축소 램프를 별도로 설치하여 비화상 부위를 현상시키지 않는 부가적인 장치가 필요하게 된다. 결국 종래에는 장치가 복잡해지고 제전 램프라는 별도의 장치를 부가해야 될 뿐 아니라, 램프가 돌아오지 않을때에는 불필요한 부분에도 계속 대전과 현상이 되므로 토너소모량이 증대하여 복사비용이 증대하고 드럼 및 블레이드가 보다 쉽게 손상되는 문제점이 있었다.The charger of the conventional electronic copying machine is related to the size even when using a small sized postcard P or copy papers B 5 , A 4 , B 4 , and A 3 of different sizes for enlarged and reduced copies as shown in FIG. 3 . The entire surface of the drum is allowed to be charged without causing light to enter during reduction, and this portion is developed to increase toner consumption. Therefore, in order to prevent this, there is a need for an additional device that does not develop a non-image part by separately installing an enlargement / reduction lamp. As a result, the device is complicated and a separate device called an antistatic lamp must be added. In addition, when the lamp does not return, charging and developing continue to be unnecessary. Therefore, the toner consumption increases, so that the copying cost is increased and the drum and the blade are more. There was a problem that was easily damaged.
본 고안은 이와 같은 종래의 문제점을 해소하기 위하여 안출한 것으로, 이를 첨부된 도면에 의하여 상세히 설명하면 다음과 같다.The present invention has been made in order to solve such a conventional problem, it will be described in detail by the accompanying drawings as follows.
제1도는 본 고안 장치의 구성을 보인 분해 사시도이고, 제2도는 체결상태의 사시도로서, ⊂자형 단면을 가지는 대전기 하우징(1) 일측부에 모터 브래키트(2)와 고정 절연체(3)가 고정나사(4)로 체결되어 있고, 타측부에는 가동절연체(5)가 슬라이딩 가능하게 조립되어 있으며, 고정절연체(3)에 플러그(6)와 함께 체결된 단자(7)에는 인장스프링(8)의 일단이 걸려있고 그 타단부에는 코로나 와이어(9)의 일단부가 걸려 있다.FIG. 1 is an exploded perspective view showing the configuration of the device of the present invention, and FIG. 2 is a perspective view of a fastening state, in which a motor bracket 2 and a fixed insulator 3 are provided at one side of a charger housing 1 having a U-shaped cross section. It is fastened by a fixing screw (4), the movable insulator (5) is assembled to the other side slidably, and the tension spring (8) to the terminal (7) fastened together with the plug (6) to the fixed insulator (3) One end of the hook is hanged at one end of the corona wire (9).
상기 가동절연체(5)에는 가이드홈(10) (10')이 양측부에 일체로 형성되고 각 가이드홈(10) (10')에는 하우징(1)의 양측부(1') (1")가 삽입되어 하우징(1)의 길이방향으로 이탈됨이 없이 좌, 우 이동 가능하게 되어 있으며, 그 가동절연체(5)에는 와이어롤(11) 일체형 피니언(12)이 고정축(13)으로 회전가능하게 설치되고 그 와이어롤 (11)에는 상기 코로나 와이어(9)의 타단부가 고정되어 있다.Guide grooves 10 and 10 'are integrally formed in both side portions of the movable insulator 5, and both side portions 1' and 1 " of the housing 1 are formed in each guide groove 10 and 10 '. Is inserted to move left and right without being separated in the longitudinal direction of the housing (1), the wire roll (11) integral pinion (12) is rotatable to the fixed shaft (13) in the movable insulator (5) The other end of the corona wire 9 is fixed to the wire roll 11.
상기 대전기 하우징(1)의 일측부 하면에 고정된 모터 브래키트(2)의 절곡부(2')에는 구동모터(14)가 고정되고 그 구동모터(14)의 구동축(15)에 고정된 타이밍 풀리(16)와 대전기하우징(1)의 타측부 측벽에 축착된 타이밍 풀리(17)에는 타이밍 벨트(18)가 연결되어 있으며, 그 타이밍 벨트(18)의 일측부가 상기 가동절연체(5)에 형성한 벨트 고정부(19)에 고정되고 하우징(1)의 측벽에 일정길이로 형성한 랙(20)에는 상기 가동절연체(5)에 축착된 피니언(12)이 치합되어 있다.The driving motor 14 is fixed to the bent portion 2 'of the motor bracket 2 fixed to the lower surface of one side of the charger housing 1 and fixed to the driving shaft 15 of the driving motor 14. A timing belt 18 is connected to the timing pulley 17 and the timing pulley 17 condensed to the side wall of the other side of the charger housing 1, and one side of the timing belt 18 is the movable insulator 5. The pinion 12 fixed to the movable insulator 5 is engaged with the rack 20 which is fixed to the belt fixing part 19 formed at the side and formed in a predetermined length on the side wall of the housing 1.
이와 같이된 본 고안의 작용효과를 설명하면 다음과 같다.Referring to the effect of the present invention as described above is as follows.
복사시 특히 축소 복사시에는 축소 영역에만 대전할 필요가 있으므로 이때에는 실제 드럼에 대전되는 폭을 줄이기 위하여 미리 위치별로 제어하게 연결되는 구동모터(14)를 구동시키면 타이밍 벨트(18)가 회동함에 따라 가동절연체(5)가 도시한 A방향으로 이동하게 되고 가동절연체(5)에 축착되어 대전기 하우징(1)의 랙(20)에 치합된 피니언(12)이 회전하는 동시에 그와 일체로 형성된 와이어롤(11)이 회전하므로 코로나와이어(9)는 와이어롤(11)에 감기면서 축소하고자하는 크기까지 코로나 와이어(9)의 길이가 짧아지며 이렇게 코로나 와이어(9)의 길이가 조절됨으로써 필요한 부분에만 대전을 행하게 된다. 한편, 코로나 와이어(9) 의 길이를 길게하고자하는 경우에는 모터(14)를 상기의 역방향으로 회전시키면 가동절연체(5)가 A방향의 역방향으로 이동하며 이와 동시에 피니언(12)이 역으로 회전하여 와이어롤(11)에서 코로나 와이어(9)가 풀리게 된다.In the case of copying, especially in the case of reduced copying, it is necessary to charge only in the reduced area. In this case, when the driving motor 14 which is controlled to be controlled in advance for each position is driven in order to reduce the width charged to the actual drum, the timing belt 18 rotates. The movable insulator 5 moves in the direction A shown and is pinned to the movable insulator 5 so that the pinion 12 engaged with the rack 20 of the charger housing 1 rotates and is integrally formed with the wire. Since the roll 11 rotates, the length of the corona wire 9 is shortened to the size that the corona wire 9 is wound around the wire roll 11, and thus the length of the corona wire 9 is adjusted so that only the necessary portion The game is played. On the other hand, when the length of the corona wire 9 is to be lengthened, when the motor 14 is rotated in the opposite direction, the movable insulator 5 moves in the reverse direction of the A direction, and at the same time, the pinion 12 rotates in the reverse direction. The corona wire 9 is released from the wire roll 11.
이상에서 설명한 바와 같은 본 고안은 복사의 크기에 맞도록 대전 부분의 폭을 조절할 수 있으므로 토너소모량을 감소할 수 있고, 드럼 및 블레이드의 수명을 연장할 수 있으며, 종래에 요구되던 제전램프의 부가장치가 필요치 않게 되므로 구성이 간소화되어 기계의 소형화에 기여하는 이점이 있으며, 종래에는 제전램프 고정시 확인이 어려워 토너 소모량이 증대하고 기기가 쉽게 노화하는 문제점이 있었으나, 이러한 문제점을 근본적으로 해소하는 이점이 있다.The present invention as described above can adjust the width of the charging portion to match the size of the copy can reduce the amount of toner consumption, extend the life of the drum and blade, and the conventional antistatic lamp additional device Since there is no need for the configuration, the configuration is simplified and contributes to the miniaturization of the machine. In the related art, it is difficult to check when fixing the antistatic lamp, which increases the toner consumption and the device easily ages. have.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR2019870024652U KR930004868Y1 (en) | 1987-12-31 | 1987-12-31 | Automatic adjustment apparatus of charging width in an electrophotographic copier |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR2019870024652U KR930004868Y1 (en) | 1987-12-31 | 1987-12-31 | Automatic adjustment apparatus of charging width in an electrophotographic copier |
Publications (2)
Publication Number | Publication Date |
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KR890014124U KR890014124U (en) | 1989-08-10 |
KR930004868Y1 true KR930004868Y1 (en) | 1993-07-23 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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KR2019870024652U KR930004868Y1 (en) | 1987-12-31 | 1987-12-31 | Automatic adjustment apparatus of charging width in an electrophotographic copier |
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KR (1) | KR930004868Y1 (en) |
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1987
- 1987-12-31 KR KR2019870024652U patent/KR930004868Y1/en not_active IP Right Cessation
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Publication number | Publication date |
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KR890014124U (en) | 1989-08-10 |
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