KR20000051026A - Transfer roller cleaning apparatus for printer - Google Patents
Transfer roller cleaning apparatus for printer Download PDFInfo
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- KR20000051026A KR20000051026A KR1019990001258A KR19990001258A KR20000051026A KR 20000051026 A KR20000051026 A KR 20000051026A KR 1019990001258 A KR1019990001258 A KR 1019990001258A KR 19990001258 A KR19990001258 A KR 19990001258A KR 20000051026 A KR20000051026 A KR 20000051026A
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- South Korea
- Prior art keywords
- transfer roller
- cleaning
- roller
- toner image
- contact
- Prior art date
Links
- 238000004140 cleaning Methods 0.000 title claims abstract description 59
- 238000000034 method Methods 0.000 claims 2
- 239000012535 impurity Substances 0.000 abstract 1
- 238000011109 contamination Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000000969 carrier Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
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- 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
- B41J29/00—Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
- B41J29/17—Cleaning arrangements
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- 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
- B41J2/165—Prevention or detection of nozzle clogging, e.g. cleaning, capping or moistening for nozzles
- B41J2/16517—Cleaning of print head nozzles
-
- 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
- B41J2/165—Prevention or detection of nozzle clogging, e.g. cleaning, capping or moistening for nozzles
- B41J2/16517—Cleaning of print head nozzles
- B41J2/16552—Cleaning of print head nozzles using cleaning fluids
-
- 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
- B41J2/165—Prevention or detection of nozzle clogging, e.g. cleaning, capping or moistening for nozzles
- B41J2/16585—Prevention or detection of nozzle clogging, e.g. cleaning, capping or moistening for nozzles for paper-width or non-reciprocating print heads
- B41J2/16588—Print heads movable towards the cleaning unit
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- 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
- B41J2/165—Prevention or detection of nozzle clogging, e.g. cleaning, capping or moistening for nozzles
- B41J2/16517—Cleaning of print head nozzles
- B41J2/16552—Cleaning of print head nozzles using cleaning fluids
- B41J2002/16558—Using cleaning liquid for wet wiping
-
- 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
- B41J2/165—Prevention or detection of nozzle clogging, e.g. cleaning, capping or moistening for nozzles
- B41J2/16517—Cleaning of print head nozzles
- B41J2002/1657—Cleaning of only nozzles or print head parts being selected
-
- 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
- B41J2/165—Prevention or detection of nozzle clogging, e.g. cleaning, capping or moistening for nozzles
- B41J2/16517—Cleaning of print head nozzles
- B41J2002/16573—Cleaning process logic, e.g. for determining type or order of cleaning processes
-
- 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
- B41J2/165—Prevention or detection of nozzle clogging, e.g. cleaning, capping or moistening for nozzles
- B41J2/16517—Cleaning of print head nozzles
- B41J2002/16576—Cleaning means pushed or actuated by print head movement
Landscapes
- Electrostatic Charge, Transfer And Separation In Electrography (AREA)
Abstract
Description
본 발명은 인쇄기용 전사롤러 크리닝장치에 관한 것으로, 상세하게는 감광벨트에 형성된 토너화상을 전사받아 인쇄용지로 옮겨주는 전사롤러의 표면을 크리닝하기 위한 인쇄기용 전사롤러 크리닝장치에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transfer roller cleaning apparatus for a printing press, and more particularly, to a transfer roller cleaning apparatus for a printing press for cleaning a surface of a transfer roller which transfers a toner image formed on a photosensitive belt to a printing paper.
일반적으로 인쇄기는 고체상의 토너만을 현상제로 사용하는 건식과, 고체상의 토너와 액상의 캐리어가 혼합된 현상액을 현상제로 사용하는 습식이 있다. 그런데, 건식의 경우 현상제로 사용되는 토너분진이 인체에 유해하다는 이유 등으로 최근에는 습식이 주로 채용되어 사용되고 있으며, 그러한 습식 인쇄기의 일예가 도 1에 도시되어 있다.In general, a printing machine includes a dry type using only a solid toner as a developer and a wet type using a developer in which a solid toner and a liquid carrier are mixed. By the way, in the case of dry, wet is mainly used in recent years because of the fact that toner dust used as a developer is harmful to the human body, and an example of such a wet printing machine is shown in FIG. 1.
도 1을 참조하면, 습식 인쇄기는 복수의 지지롤러(11)에 지지되어 무한궤도상을 주행하는 감광매체인 감광벨트(10)와, 상기 감광벨트(10)의 정전잠상 영역에 형성된 화상을 인쇄용지(P)로 전사시키기 위한 전사롤러(15)를 구비한다.Referring to FIG. 1, a wet printing machine prints a photosensitive belt 10, which is a photosensitive medium that is supported by a plurality of support rollers 11 and travels on an orbit, and an image formed in an electrostatic latent image region of the photosensitive belt 10. A transfer roller 15 for transferring to the paper P is provided.
상기 감광벨트(10)는 그 표면이 대전기(12)에 의해 소정레벨의 전위상태로 유지되며, 각 현상기(14)에 인접설치된 레이저 주사유니트(13)에서 주사된 광에 의해 전위가 변화되어 정전잠상이 형성된다. 이와 같이 형성된 정전잠상 영역에는 상기 현상기(14)를 지나면서 고체상의 토너와 액상의 캐리어가 혼합된 현상액이 부착된 후에, 토너는 필름화되어 토너화상이 형성되고 나머지 대부분의 캐리어는 짜내어져서 제거된다.The surface of the photosensitive belt 10 is maintained at a potential level of a predetermined level by the charger 12, and the potential is changed by the light scanned by the laser scanning unit 13 provided adjacent to each of the developing devices 14. An electrostatic latent image is formed. After the developer 14 is attached to the electrostatic latent image region formed as described above, the toner is filmed to form a toner image, and most of the remaining carriers are squeezed out. do.
한편, 상기와 같이 감광벨트(10)에 형성된 토너화상은 표면에너지의 차이에 의해 상기 전사롤러(15)로 ??겨진 후에, 그 전사롤러(15)와 정착롤러(16) 사이로 통과하는 인쇄용지(P)로 옮겨져서 최종 인쇄된다. 그리고, 인쇄용지(P)로 옮겨지지 않고 전사롤러(15)에 미소하게 잔류하는 토너찌거기 등의 이물질은 그 전사롤러(15)에 접촉회전하는 제1크리닝롤러(17)에 의해 크리닝되어 제거된다.On the other hand, the toner image formed on the photosensitive belt 10 as described above is printed on the transfer roller 15 by the difference in surface energy, and then passes through the transfer roller 15 and the fixing roller 16. It is moved to (P) and finally printed. Then, foreign matters such as toner residue which are slightly left in the transfer roller 15 without being transferred to the printing paper P are cleaned and removed by the first cleaning roller 17 which is rotated in contact with the transfer roller 15. .
그런데, 상기와 같은 구성에 있어서, 상기 전사롤러는 상기 감광벨트에 형성된 토너화상 뿐만 아니라, 그 토너화상의 선단과 후단에 발생할 수 있는 이물질까지도 그대로 옮겨받게 된다. 따라서, 이와 같이 옮겨진 이물질이 토너화상과 함께 인쇄용지로 옮겨지므로, 결국 인쇄용지를 오염시키게 되는 문제점이 있다.In the above configuration, however, the transfer roller transfers not only the toner image formed on the photosensitive belt, but also foreign matters that may occur at the front end and the rear end of the toner image. Therefore, the foreign matter thus transferred is transferred to the printing paper together with the toner image, thereby contaminating the printing paper.
본 발명은 상기와 같은 문제점을 해결하기 위해 창안된 것으로, 감광벨트에서 전사롤러로 옮겨진 이물질이 인쇄용지로 옮겨지기 전에 제거할 수 있도록 구조 개선된 인쇄기용 전사롤러 크리닝장치를 제공하는데 그 목적이 있다.The present invention was devised to solve the above problems, and an object thereof is to provide a transfer roller cleaning device for a printing machine having an improved structure so that foreign matters transferred from the photosensitive belt to the transfer roller can be removed before being transferred to the printing paper. .
도 1은 일반적인 습식 인쇄기를 나타내 보인 개략적인 구성도.1 is a schematic diagram showing a typical wet printing machine.
도 2는 본 발명의 실시예에 따른 전사롤러 크리닝장치가 채용된 인쇄기의 일부를 나타내 보인 개략적인 구성도.Figure 2 is a schematic diagram showing a part of a printing machine employing a transfer roller cleaning device according to an embodiment of the present invention.
도 3은 본 발명의 실시예에 따른 전사롤러 크리닝장치의 동작을 설명하기 위한 개략적인 구성도.Figure 3 is a schematic configuration diagram for explaining the operation of the transfer roller cleaning apparatus according to an embodiment of the present invention.
< 도면의 주요부분에 대한 부호의 설명 ><Description of Symbols for Major Parts of Drawings>
10..감광벨트 11..지지롤러10. Photosensitive belt 11. Support roller
15..전사롤러 16..정착롤러15. Transfer Roller 16. Fixing Roller
22..제1크리닝롤러 24..제2크리닝롤러22. First cleaning roller 24. Second cleaning roller
32..회동부재 34..캠32. Rotating member 34. Cam
36..스프링36.Spring
상기 목적을 달성하기 위한 본 발명에 따른 인쇄기용 전사롤러 크리닝장치는, 감광매체에 형성된 토너화상을 전사받아 정착롤러와의 사이로 통과하는 인쇄용지로 최종 전사시키는 전사롤러의 표면을 크리닝하기 위한 것으로, 상기 인쇄용지로 토너화상을 전사한 후의 상기 전사롤러 표면을 크리닝하는 제1크리닝롤러를 포함하는 인쇄기용 전사롤러 크리닝장치에 있어서, 상기 전사롤러의 상기 인쇄용지에 접촉되기 전의 표면에 선택적으로 접촉회전 가능하게 설치된 제2크리닝롤러와; 상기 제2크리닝롤러를 상기 전사롤러에 선택적으로 접촉 및 이격시키기 위한 이동수단;을 포함하여, 상기 전사롤러로 전사된 상기 토너화상을 제외한 그 토너화상의 선/후단부만을 부분적으로 크리닝하는 것을 특징으로 한다.The transfer roller cleaning apparatus for a printing press according to the present invention for achieving the above object is for cleaning the surface of the transfer roller for transferring the toner image formed on the photosensitive medium and finally transferring the transfer paper to the printing paper passing between the fixing roller, A transfer roller cleaning apparatus for a printing machine comprising a first cleaning roller for cleaning the surface of the transfer roller after transferring a toner image onto the printing paper, the contact roller being selectively brought into contact with the surface before contacting the printing paper of the transfer roller. A second cleaning roller which is possibly installed; And moving means for selectively contacting and separating the second cleaning roller from the transfer roller, and partially cleaning only the line / rear portion of the toner image other than the toner image transferred to the transfer roller. It is done.
이하 첨부된 도면을 참조하여 본 발명의 바람직한 실시예에 따른 인쇄기용 전사롤러 크리닝장치를 자세히 설명하기로 한다.Hereinafter, a transfer roller cleaning apparatus for a printing press according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.
도 2를 참조하면, 본 실시예에 따른 전사롤러 크리닝장치는 전사롤러(15)에 접촉회전 가능하게 설치되는 제1크리닝롤러(22)와, 상기 전사롤러(15)에 선택적으로 접촉회전하는 제2크리닝롤러(24) 및 상기 제2크리닝롤러(24)를 위치이동시키기 위한 이동수단을 구비한다. 여기서, 앞서 도 1에 도시된 도면의 구성요소와 동일한 구성요소에 대해서는 동일한 참조번호를 부여하였다.Referring to FIG. 2, the transfer roller cleaning apparatus according to the present embodiment includes a first cleaning roller 22 installed in the transfer roller 15 so as to be in contact rotation, and a material in which the transfer roller 15 is selectively rotated in contact with the transfer roller 15. And a moving means for moving the second cleaning roller 24 and the second cleaning roller 24 in position. Here, the same reference numerals are given to the same components as those in the drawing shown in FIG. 1.
상기 제1크리닝롤러(22)는 앞서 도 1에 도면부호 17로 표시된 제1크리닝롤러와 동일한 부재를 나타낸다. 상기 제2크리닝롤러(24)는 상기 전사롤러(15)에 접촉 및 이격가능하게 설치되어 있다. 구체적으로는 도 2에 도시된 바와 같이 전사롤러(15)에 접촉회전하는 접촉위치와 도 3에 도시된 바와 같이 전사롤러(15)에서 이격되는 이격위치 사이에서 이동가능하게 설치되어 있다. 또한, 이 제2크리닝롤러(24)는 인쇄용지(P)에 접촉하기 전의 전사롤러(15) 표면에 접촉회전 가능하도록 위치되어 있다. 즉, 제2크리닝롤러(24)는 도시된 바와 같이 상기 전사롤러(15)와 정착롤러(16) 사이로 통과하기 전의 인쇄용지(P)에 대면될 수 있도록 위치되어 있다.The first cleaning roller 22 represents the same member as the first cleaning roller indicated by reference numeral 17 in FIG. 1. The second cleaning roller 24 is provided to be in contact with and spaced apart from the transfer roller 15. Specifically, as shown in FIG. 2, the contacting position of contact rotation of the transfer roller 15 and the spaced apart position of the transfer roller 15 as shown in FIG. 3 are movable. In addition, the second cleaning roller 24 is positioned so as to be capable of contact rotation on the surface of the transfer roller 15 before contacting the printing paper P. FIG. That is, the second cleaning roller 24 is positioned so as to face the printing paper P before passing between the transfer roller 15 and the fixing roller 16 as shown.
상기 이동수단은 상기 제2크리닝롤러(24)를 지지하는 회동부재(32)와, 상기 회동부재(32)에 접촉회전 가능하게 설치되는 캠(34) 및 상기 회동부재(34)를 상기 이격위치로 가압하기 위한 스프링(36)을 구비한다.The moving means may include a pivot member 32 supporting the second cleaning roller 24, a cam 34 installed on the pivot member 32 so as to be in contact with the pivot member 32, and the pivot member 34 in the spaced apart position. It is provided with a spring 36 for pressing.
상기 회동부재(32)는 일단에 상기 제2크리닝롤러(24)를 회전가능하게 지지하며, 타단은 소정의 힌지점(H)에 힌지결합되어 소정각도 회동가능하게 설치되어 있다. 구체적으로, 상기 회동부재(32)는 상기 힌지점(H)을 중심으로 회동되면서 상기 제2크리닝롤러(24)를 상기 접촉위치와 이격위치로 선택적으로 이동시키도록 설치되어 있다. 이러한 회동부재(32)는 상기 캠(34)의 회전시, 그 캠(34)에 의해 밀려서 상기 접촉위치로 가압되며, 상기 스프링(36)에 의해 상기 이격위치로 가압되게 된다. 여기서, 상기 스프링(36)은 일단이 상기 회동부재(32)에 연결되며, 타단은 소정의 지지물(미도시)에 고정될 수 있다.The rotating member 32 rotatably supports the second cleaning roller 24 at one end thereof, and the other end thereof is hinged to a predetermined hinge point H so as to be rotatable at a predetermined angle. Specifically, the rotation member 32 is installed to selectively move the second cleaning roller 24 to the contact position and the spaced apart position while being rotated about the hinge point (H). When the cam 34 rotates, the cam 34 is pushed by the cam 34 to the contact position and pressed by the spring 36 to the spaced apart position. Here, one end of the spring 36 is connected to the rotation member 32, the other end may be fixed to a predetermined support (not shown).
상기 구성을 가지는 본 실시예에 따른 인쇄기용 전사롤러 크리닝장치의 동작을 도 2 및 도 3을 참조하여 설명하기로 한다.The operation of the transfer roller cleaning apparatus for a printing press according to the present embodiment having the above configuration will be described with reference to FIGS. 2 and 3.
우선 인쇄동작시, 감광벨트(10)의 정전잠상 영역에는 토너화상(T)이 형성된다. 이 토너화상(T)은 주행되는 감광벨트(10)와 함께 이동되어 표면에너지의 차이에 의해 전사롤러(15)로 전사된다. 이 때, 상기 토너화상(T)을 제외한 부분 즉, 그 토너화상(T)의 선/후단부에는 토너분진 등의 이물질에 의해 오염되는 경우가 있으며, 이 경우 감광벨트(10) 상의 이물질도 전사롤러(15)로 옮겨져서 그 표면을 오염시키게 된다. 이 때, 도 2에 도시된 바와 같이 상류에 있는 토너화상(T1)이 지나간 직후에 캠(34)을 회전시켜 제2크리닝롤러(24)를 전사롤러(15)에 접촉시키게 된다. 이와 같이 접촉된 제2크리닝롤러(24)는 종동회전되면서 전사롤러(15) 표면에 달라붙은 이물질 등을 긁어내어 제거시키게 된다. 여기서, 제2크리닝롤러(24)는 감광벨트(10)의 하류에 있는 토너화상(T2)이 전사롤러(15)로 전사된 후 그 제2크리닝롤러(24)에 대면되는 지점에 도착될 때까지 전사롤러(15)에 접촉된 상태를 유지하게 된다. 그리고, 상기 토너화상(T2)이 통과되기 직전에 캠(34)을 회전시키게 되면, 회동부재(32)가 스프링(36)에 의해 도 3에 도시된 바와 같이 이동되어 제2크리닝롤러(24)는 상기 이격위치에 위치되게 된다. 따라서, 상기 제2크리닝롤러(24)는 토너화상(T)은 훼손시키지 않고 그 토너화상(T)의 선/후단부에 잔류하는 이물질만을 제거하여 인쇄용지(P)의 오염을 억제시킬 수 있게 된다.First, in the printing operation, the toner image T is formed in the electrostatic latent image region of the photosensitive belt 10. The toner image T is moved together with the photosensitive belt 10 that is driven and transferred to the transfer roller 15 by the difference in surface energy. At this time, portions other than the toner image T, that is, the line / rear portion of the toner image T may be contaminated by foreign matter such as toner dust, and in this case, the foreign matter on the photosensitive belt 10 may also be transferred. Transferred to the roller 15 to contaminate its surface. At this time, as shown in FIG. 2, the cam 34 is rotated immediately after the toner image T1 upstream passes, and the second cleaning roller 24 is brought into contact with the transfer roller 15. As shown in FIG. The second cleaning roller 24 in contact as described above is driven by scraping and removing foreign substances, etc. stuck to the surface of the transfer roller 15 while being driven. Here, when the second cleaning roller 24 arrives at the point where the toner image T2 downstream of the photosensitive belt 10 is transferred to the transfer roller 15 and faces the second cleaning roller 24. Until it is maintained in contact with the transfer roller 15. Then, when the cam 34 is rotated just before the toner image T2 passes, the rotating member 32 is moved by the spring 36 as shown in FIG. 3 to form the second cleaning roller 24. Is located at the spaced position. Therefore, the second cleaning roller 24 is capable of suppressing contamination of the printing paper P by removing only foreign substances remaining at the front / rear portions of the toner image T without damaging the toner image T. do.
여기서 상기 제2크리닝롤러(24)의 전사롤러(15)에 대한 접촉 및 이격시간의 제어는 상기 감광벨트(10)에 형성되는 토너화상(T)의 위치정보를 소정의 제어부(미도시)에서 입력하고 있다가, 감광벨트(10)의 주행시간을 고려하여 상기 토너화상(T)이 상기 전사롤러(15)와 제2크리닝롤러(24)의 접촉부위에 도달하는 시간을 계산하여 상기 캠(35)을 적절히 구동시킴으로써 가능하게 된다.Here, the control of the contact and separation time of the second cleaning roller 24 with respect to the transfer roller 15 may be performed by a predetermined control unit (not shown) using position information of the toner image T formed on the photosensitive belt 10. After inputting, the time taken for the toner image T to reach the contact portion between the transfer roller 15 and the second cleaning roller 24 in consideration of the travel time of the photosensitive belt 10 is calculated. It is possible by appropriately driving 35).
한편, 제1크리닝롤러(22)는 토너화상(T1)이 인쇄용지(P)로 전사되고 난 후에 , 전사롤러(15) 표면에 소량으로 잔류하는 토너분진 등을 크리닝하여 거의 제거함으로써, 다음차례로 전사롤러(15)에 전사되는 토너화상(T2)의 오염을 억제시킬 수 있게 된다.On the other hand, after the toner image T1 is transferred onto the printing paper P, the first cleaning roller 22 cleans and almost removes toner dust remaining in a small amount on the surface of the transfer roller 15. Contamination of the toner image T2 transferred to the transfer roller 15 can be suppressed.
상술한 바와 같은 본 발명의 실시예에 따른 전사롤러 크리닝장치에 따르면, 전사롤러에 선택적으로 접촉회전되는 제2크리닝롤러를 마련함으로써, 토너화상을 훼손시키지 않고 그 토너화상 이외의 부분에 잔류하는 이물질만을 제거할 수 있게 된다.According to the transfer roller cleaning apparatus according to the embodiment of the present invention as described above, by providing a second cleaning roller that is selectively contact rotated to the transfer roller, foreign matter remaining in portions other than the toner image without damaging the toner image Only the bay can be removed.
따라서, 인쇄용지의 오염을 억제하여 인쇄의 질을 향상시킬 수 있다는 장점이 있다.Therefore, there is an advantage that the quality of printing can be improved by suppressing the contamination of the printing paper.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019990001258A KR20000051026A (en) | 1999-01-18 | 1999-01-18 | Transfer roller cleaning apparatus for printer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019990001258A KR20000051026A (en) | 1999-01-18 | 1999-01-18 | Transfer roller cleaning apparatus for printer |
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Publication Number | Publication Date |
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KR20000051026A true KR20000051026A (en) | 2000-08-16 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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KR1019990001258A KR20000051026A (en) | 1999-01-18 | 1999-01-18 | Transfer roller cleaning apparatus for printer |
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KR (1) | KR20000051026A (en) |
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1999
- 1999-01-18 KR KR1019990001258A patent/KR20000051026A/en not_active Application Discontinuation
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