KR100230342B1 - Method of feeding paper from multiple cassettes employd in a printer - Google Patents

Method of feeding paper from multiple cassettes employd in a printer Download PDF

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Publication number
KR100230342B1
KR100230342B1 KR1019970068333A KR19970068333A KR100230342B1 KR 100230342 B1 KR100230342 B1 KR 100230342B1 KR 1019970068333 A KR1019970068333 A KR 1019970068333A KR 19970068333 A KR19970068333 A KR 19970068333A KR 100230342 B1 KR100230342 B1 KR 100230342B1
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South Korea
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paper
container
feeding
printing
printing unit
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KR1019970068333A
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Korean (ko)
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KR19990049394A (en
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윤진수
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윤종용
삼성전자주식회사
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Priority to KR1019970068333A priority Critical patent/KR100230342B1/en
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    • 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
    • G03G15/65—Apparatus which relate to the handling of copy material
    • G03G15/6502—Supplying of sheet copy material; Cassettes therefor
    • G03G15/6508—Automatic supply devices interacting with the rest of the apparatus, e.g. selection of a specific cassette
    • 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
    • B41J11/006—Means for preventing paper jams or for facilitating their removal
    • 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
    • B41J13/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in short lengths, e.g. sheets
    • B41J13/0009—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in short lengths, e.g. sheets control of the transport of the copy material
    • B41J13/0018—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in short lengths, e.g. sheets control of the transport of the copy material in the sheet input section of automatic paper handling systems
    • 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
    • B41J13/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in short lengths, e.g. sheets
    • B41J13/10—Sheet holders, retainers, movable guides, or stationary guides
    • B41J13/103—Sheet holders, retainers, movable guides, or stationary guides for the sheet feeding section
    • 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
    • G03G15/55—Self-diagnostics; Malfunction or lifetime display
    • 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
    • G03G15/70—Detecting malfunctions relating to paper handling, e.g. jams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/50—Occurence
    • B65H2511/52—Defective operating conditions
    • B65H2511/528—Jam
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G2215/00—Apparatus for electrophotographic processes
    • G03G2215/00362—Apparatus for electrophotographic processes relating to the copy medium handling
    • G03G2215/00535—Stable handling of copy medium
    • G03G2215/00548—Jam, error detection, e.g. double feeding

Abstract

복수의 용지수납기를 갖는 인쇄기의 용지 급지방법이 개시된다. 본 발명에 의한 용지 급지방법에 의하면 지정된 어느 하나의 상기 용지수납기에 적재된 용지를 급지하여 인쇄부로 이송시키는 과정에서 잼등에 의한 용지 공급에러가 발생하면 타 용지수납기로부터의 새로운 용지의 급지가 가능한지를 판단하는 단계와, 상기 타 용지수납기가 사용가능하면 상기 타 용지수납기로부터 새로운 용지를 급지하여 상기 인쇄부로 공급하는 단계를 거치도록 하는데 있다. 이러한 급지방법에 의하면 어느 하나의 용지공급경로상에서 용지걸림등에 의한 급지에러가 발생된 경우에도 다른 용지공급경로를 갖는 타 용지수납기로부터의 용지공급을 재시도 할 수 있어 인쇄작업 중단을 극복할 수 있게 한다.Disclosed is a paper feeding method of a printer having a plurality of paper containers. According to the paper feeding method according to the present invention, if a paper supply error occurs due to a jam or the like in the process of feeding the paper loaded in any one of the designated paper containers and transferring it to the printing unit, it is possible to feed new paper from another paper container. And determining, if the other paper container is available, feeding new paper from the other paper container and supplying the new paper to the printing unit. According to this paper feed method, even if a paper feed error occurs due to a paper jam on one paper feed path, paper feed from another paper feeder having a different paper feed path can be retried to overcome the interruption of printing. do.

Description

복수의 용지수납기를 갖는 인쇄기의 용지 급지방법Paper feeding method of printing machine having plural paper containers

본 발명은 복수의 용지수납기를 갖는 인쇄기의 용지 급지방법에 관한 것으로서, 상세하게는 지정된 용지수납기로부터 인쇄부로의 용지공급과정에서 급지에러 발생시에 다른 용지수납기로부터 새로운 용지를 인쇄부로 공급하도록 하여 인쇄작업중단을 피할 수 있도록 하는 인쇄기의 용지 급지방법에 관한 것이다.The present invention relates to a paper feeding method of a printer having a plurality of paper containers, and more particularly, to print new paper from another paper container to a printing unit when a paper feeding error occurs during a paper feeding process from a designated paper storage unit to a printing unit. A paper feeding method of a printing press to avoid interruption.

일반적으로 레이저 프린터나 복사기와 같은 전자사진방식 인쇄기는 노광에 의해 정전 잠상이 형성되어 있는 감광매체에 고체상태의 현상물질인 토너 또는 액체상태의 잉크를 분사시켜 화상을 형성시킨 후, 그 감광 매체와 접촉되어 회전하는 롤러 사이로 용지를 통과시킴으로써 원하는 화상을 인쇄할 수 있도록 되어있다.In general, an electrophotographic printing machine such as a laser printer or a copier forms an image by spraying a toner or a liquid ink in a solid developing material on a photosensitive medium on which an electrostatic latent image is formed by exposure, and then forming an image. The desired image can be printed by passing the paper between the rollers which come into contact and rotate.

이와 같은 인쇄기는 대부분 다양한 종류의 인쇄용지의 적재를 가능하게 할 목적으로 용지 적재용 용지수납기가 복수로 마련되어 있다. 또한, 각 용지수납기는 그 내부에 적재된 용지 크기에 맞춰 용지를 규제하기 위한 가이드바의 이동이 가변조정될 수 있도록 되어 있어 다양한 크기의 용지를 적재할 수 있는 구조를 대부분 갖는다.Most of such a press is provided with a plurality of paper stacks for loading paper for the purpose of enabling the loading of various types of printing paper. In addition, each paper container has a structure capable of loading various sizes of paper since the movement of the guide bar for regulating the paper according to the size of the paper loaded therein is variable.

한편, 종래의 인쇄방법에 의하면 지정된 용지수납기에 적재된 용지를 인쇄부로 급지하는 과정에서 잼(jam)등에 의한 급지에러가 발생한 경우 진행중이던 인쇄작업을 중단시킨 다음, 치유를 요구하는 급지 에러메세지를 표시하였다. 따라서, 급지에러가 치유되기 전까지는 진행중이던 인쇄작업을 마무리 할 수 없었다. 이와 같이 진행중이던 인쇄작업이 급지에러에 의해 중단되는 경우 감광매체상에 현상물질로 형성시킨 이미지가 시간적 경과에 따라 경화됨으로써 오염원이 되는 등 인쇄재개를 위한 회복을 보다 어렵게 하는 복합적인 문제까지 야기시킨다.On the other hand, according to the conventional printing method, if a paper feed error caused by jam or the like occurs in the process of feeding the paper loaded in the designated paper container to the printing unit, a paper feed error message requesting healing is stopped after stopping the printing job in progress. Indicated. Therefore, it was not possible to finish the print job in progress until the feeding error was healed. If the print job in progress is interrupted by a feeding error, the image formed by the developing material on the photosensitive medium is hardened over time, resulting in a complex problem that makes it more difficult to resume printing. .

본 발명은 상기와 같은 문제점을 해결하기 위하여 창안된 것으로서, 어느 하나의 용지수납기로부터의 급지에러가 발생된 경우 구비된 다른 용지수납기에 의한 용지의 급지를 재시도 할 수 있도록 하여 인쇄작업중단을 피할 수 있도록 하는 인쇄기의 용지급지방법을 제공하는데 그 목적이 있다.The present invention was devised to solve the above problems, and it is possible to retry feeding of paper by another paper container provided when a paper feeding error occurs from one paper container, thereby avoiding interruption of the printing operation. It is an object of the present invention to provide a paper feeding method of a printing press.

도 1은 본 발명에 따른 용지 급지방법이 적용되는 인쇄기를 나타내보인 단면도이고,1 is a cross-sectional view showing a printing machine to which a paper feeding method according to the present invention is applied;

도 2는 본 발명의 용지 급지방법에 따른 급지계통 제어순서를 나타내보인 순서도이다.2 is a flowchart showing a paper feeding system control procedure according to the paper feeding method of the present invention.

< 도면의 주요부분에 대한 부호의 설명><Description of the reference numerals for the main parts of the drawings>

10: 인쇄부 11: 감광드럼10: printing section 11: photosensitive drum

12: 광주사유니트 13: 현상기12: Gwangju company unit 13: Developing machine

14: 정착기 15, 16, 17, 18, 27: 롤러14: Fuser 15, 16, 17, 18, 27: Roller

19: 배출구 20: 용지공급부19: outlet 20: paper feed unit

21: 제1용지수납기 22: 제2용지수납기21: 1st paper storage machine 22: 2nd paper storage machine

23: 제3용지수납기 24, 25, 26: 용지공급경로23: 3rd paper container 24, 25, 26: paper feed path

28: 포토 인터럽터 28a: 광원28: photo interrupter 28a: light source

28b: 광검출기 29: 공용경로28b: photodetector 29: common path

30: 조작패널부 40: 용지30: operation panel portion 40: paper

상기의 목적을 달성하기 위하여 본 발명에 따른 인쇄기의 용지급지방법은 용지를 적재하는 용지수납기가 복수로 마련되어 있고, 상기 용지수납기들 각각으로부터 인쇄부로 상기 용지를 이송하기 위한 용지공급경로를 갖고 있는 인쇄기의 용지 급지방법에 있어서, 지정된 어느 하나의 상기 용지수납기에 적재된 용지를 급지하여 상기 인쇄부로 이송시키는 단계;와 지정된 상기 용지수납기에서 상기 용지공급경로를 따라 상기 인쇄부로의 용지 이송과정에서 잼등에 의한 용지 공급에러가 발생하면 타 용지수납기로부터의 새로운 용지의 급지가 가능한지를 판단하는 단계; 상기 타 용지수납기가 사용가능하면 상기 타 용지수납기로부터 새로운 용지를 급지하여 상기 인쇄부로 공급하는 단계; 상기 타 용지수납기의 급지가 불가능하면 인쇄작업을 중단시키는 단계;를 포함한다.In order to achieve the above object, the paper feeding method of the printing press according to the present invention is provided with a plurality of paper storage for loading the paper, a printing machine having a paper feed path for transporting the paper from each of the paper storage to the printing unit; A paper feeding method, comprising: feeding paper loaded in one of the designated paper receivers and feeding the paper to the printing unit; and jams in the paper feeding process from the designated paper container to the printing unit along the paper feeding path. Determining whether paper feeding from another paper container is possible when a paper feeding error occurs; Supplying new paper from the other paper container to the printing unit if the other paper container is available; And stopping printing if the paper feeder cannot be fed.

지정된 상기 용지수납기에서 상기 인쇄부로의 용지 이송과정에서 잼등에 의한 용지공급에러가 발생하면 상기 타 용지수납기로부터의 새로운 용지의 급지가 가능한지를 판단하기 이전에 급지에러 치유요구를 목적으로 급지에러메세지를 표시하는 단계;를 포함하는 것이 바람직하다.If a paper supply error occurs due to jam or the like during the paper conveyance process from the designated paper container to the printing unit, a paper feed error message is requested for the purpose of healing the paper feed error before determining whether new paper can be fed from the other paper container. It is preferable to include; displaying.

이하 첨부된 도면을 참조하여 본 발명에 따른 인쇄기의 용지급지방법을 보다 상세하게 설명한다.Hereinafter, a paper feeding method of a printing press according to the present invention will be described in detail with reference to the accompanying drawings.

도 1은 본 발명에 따른 용지 급지방법이 적용되는 인쇄기를 나타내보인 단면도이다.1 is a cross-sectional view showing a printing machine to which a paper feeding method according to the present invention is applied.

도면을 참조하면, 인쇄기는 크게 인쇄부(10)와, 용지공급부(20) 및 조작패널부(30)를 갖는다.Referring to the drawings, the printer has a printing unit 10, a paper supply unit 20 and the operation panel unit 30 largely.

인쇄부(10)는 감광드럼(11), 광주사유니트(12), 현상기(13), 정착기(14)를 포함한다. 인쇄방식에 따라 인쇄부(10)의 구성요소는 바뀔수 있고, 일 예로 현상물질을 액상의 잉크를 사용하는 습식 컬러 인쇄기 경우 감광매체로서 감광드럼(11) 대신에 감광벨트가 적용될 수 있다.The printing unit 10 includes a photosensitive drum 11, a photorejuvenation unit 12, a developing device 13, and a fixing unit 14. Components of the printing unit 10 may be changed according to the printing method. For example, in the case of a wet color printing machine using a liquid ink, a photosensitive belt may be applied instead of the photosensitive drum 11 as a photosensitive medium.

용지공급부(20)는 인쇄부(10)로의 용지(40)를 공급하기 위한 것으로서, 하측에 마련된 2개의 제1 및 제2용지수납기(21)(22)와, 측면에 마련된 제3용지수납기(23)와, 각 용지 수납기(21)(22)(23)로부터 인쇄부(10)로 적재된 용지(40)를 이송하기 위한 용지이송경로(24)(25)(26) 및 상기 용지이송경로(24)(25)(26)상에 마련된 이송롤러(27)들이 마련되어 있다. 제3용지수납기(23)는 수동급지용으로 이용된다.The paper supply unit 20 is for supplying the paper 40 to the printing unit 10. The paper supply unit 20 is provided with two first and second paper receivers 21 and 22 provided on the lower side, and a third paper receiver provided on the side surface thereof. 23, paper feed paths 24, 25, 26 and paper feed paths for conveying the paper 40 loaded from each paper container 21, 22, 23 to the printing unit 10; The feed rollers 27 provided on (24) (25) (26) are provided. The third paper receiver 23 is used for manual feeding.

각 용지 이송경로(24)(25)(26)상에 광원(28a)과 광검출기(28b)가 쌍으로 되어 용지(40)의 통과를 검출하도록 된 다수의 포토인터럽터(28)의 상기 광검출기(28b)의 출력신호는 용지(40)의 정상적인 이송을 판정하는데 이용된다.The photodetectors of the plurality of photointerrupters 28 in which the light source 28a and the photodetector 28b are paired on each paper feed path 24, 25, 26 to detect the passage of the paper 40. The output signal of 28b is used to determine the normal conveyance of the paper 40.

상측에 마련된 조작패널부(30)에는 공급대상 용지수납기(21)(22)(23)의 지정, 인쇄농도설정 등 인쇄기가 제공하는 다양한 인쇄기능을 사용자가 설정할 수 있도록 조작키가 마련되어 있다. 또한 조작패널부(30)의 일측에는 표시장치(미도시)가 마련되어 있다.The operation panel unit 30 provided on the upper side is provided with operation keys so that the user can set various printing functions provided by the printer, such as designation of the paper targets 21, 22 and 23 to be supplied and setting the print density. In addition, a display device (not shown) is provided at one side of the operation panel unit 30.

이와 같이 구성된 인쇄기에 대한 본 발명의 용지급지방법에 따른 급지계통 제어순서를 나타내보인 도 2를 도 1과 함께 참조하면서 설명한다.A description will be given with reference to FIG. 2 with reference to FIG. 2 showing a paper feeding system control procedure according to the paper feeding method of the present invention for a printer configured as described above.

먼저, 인쇄작업이 시작되면 조작패널부(30)을 통해 사용자에 의해 지정된 용지수납기(21)(22)(23)로부터 적재된 용지(40)를 인쇄부(10)로 이송시키기 위해 해당 용지이송수단인 롤러(27)를 구동시킨다(단계 100). 용지(40)의 공급대상이 제1용지수납기(21)로 미리 지정된 경우 제1용지수납기(21) 상부에 마련된 롤러(27a)의 회전에 의해 적재상태에 있던 용지(40)가 해당용지이송경로(24)로 진입되고 이후, 전진방향에 일정거리를 두고 마련된 롤러(27)들에 의해 감광드럼(11)을 향해 이송된다.First, when a print job is started, the paper transfer is carried to transfer the paper 40 loaded from the paper containers 21, 22, 23 designated by the user through the operation panel unit 30 to the printing unit 10. The roller 27 which is a means is driven (step 100). When the object to be fed to the paper 40 is previously designated as the first paper container 21, the paper 40 in the stacked state is rotated by the rotation of the roller 27a provided on the first paper container 21. At 24, the rollers 27 are moved toward the photosensitive drum 11 by rollers 27 provided at a predetermined distance in the forward direction.

이러한 이송과정시 지정된 제1용지수납기(21)로부터 감광드럼(11)으로의 용지(40)의 이송이 정상적으로 이루어지고 있는지는 포터인터럽터(28)의 출력신호에 의해 점검된다(단계 200).It is checked by the output signal of the porter interrupter 28 whether the conveyance of the paper 40 from the designated first paper container 21 to the photosensitive drum 11 during this conveyance process is normal (step 200).

한편, 용지(40)의 인쇄부(10)로의 급지를 위한 롤러(27)들의 회전이 해당 용지이송경로(24)에서 이루어 지고 있는 동안 순환회전되는 감광드럼(11)에는 광주사유니트(12)에 의해 정전잠상이 기입되고, 여기에 현상기(13)에 의한 현상물질이 공급되어 감광드럼(11)상에 정전잠상에 대응한 화상이 현상물질에 의해 형성된다.On the other hand, while the rotation of the rollers 27 for feeding the paper 40 to the printing unit 10 is made in the paper feed path 24, the photosensitive drum 11 is rotated in the photosensitive drum (11) By this, the electrostatic latent image is written, and the developing material by the developing device 13 is supplied thereto to form an image corresponding to the electrostatic latent image on the photosensitive drum 11 by the developing material.

용지(40)의 통과신호에 해당하는 상기 포터인터럽터(28)들의 순차적인 출력신호가 계속적으로 출력되면 감광드럼(11)으로의 용지(40)공급이 정상적으로 이루어지고 있다고 내부적 제어계통에서 판단한다. 정상급지후에는 정해진 작업순서에 따라 다음 과정인 화상전사가 이루어진다. 화상전사는 감광드럼(11)사이로 용지(40)가 압착이송될 때 감광드럼(11)의 화상이 용지(40)에 옮겨짐으로서 완료된다. 계속해서 화상이 그 위에 전사된 용지(40)는 정착부(14)의 두 개의 롤러(15)(16)를 통해 고온 가압이송됨으로써, 현상기(13)로부터 공급된 현상물질의 고착이 강화되고, 이후 배지롤러(17)(18)에 의해 배출구(19)를 통해 배출된다(단계 300).When the sequential output signals of the porter interrupters 28 corresponding to the passage signal of the paper 40 are continuously output, the internal control system determines that the paper 40 is supplied to the photosensitive drum 11 normally. After normal feeding, the next process, image transfer, takes place according to the defined work order. The image transfer is completed by transferring the image of the photosensitive drum 11 to the paper 40 when the paper 40 is compressed and transferred between the photosensitive drums 11. Subsequently, the paper 40 on which the image is transferred thereon is pressurized at high temperature through the two rollers 15 and 16 of the fixing unit 14, thereby adhering the fixing of the developing material supplied from the developing device 13, Thereafter, the discharge rollers 17 and 18 are discharged through the discharge port 19 (step 300).

한편, 용지급지를 위한 롤러(27)의 계속적인 구동제어가 가해짐에도 불구하고, 예측되는 용지(40)통과 시각에 용지(40) 통과를 알리는 포터인터럽터(28)의 출력신호가 입력되지 않으면 급지에러로 판정한다. 급지에러로 판정되는 경우 용지(40)걸림등을 알리는 용지(40)걸림메세지를 표시장치를 통해 표시하면서(단계 400), 다른 용지수납기(22)(23)로부터의 용지(40)공급이 가능한지를 판단한다(단계500).On the other hand, despite the continuous drive control of the roller 27 for paper feeding, if the output signal of the porter interrupter 28 for notifying the passage of the paper 40 at the predicted time of passing the paper 40 is not input, A paper feed error is determined. If it is determined that a paper feed error occurs, the paper 40 jam message indicating the paper jam, etc. is displayed via the display device (step 400), and whether the paper 40 from the other paper containers 22 and 23 can be supplied. Determine (step 500).

다른 경로(25)(26)를 통한 용지(40) 공급의 가능여부는 다음으로 대체될 제2용지수납기(22)내에 적재된 용지(40)가 있는지, 그리고 적재된 용지(40)의 크기는 지정된 크기인지를 판단할 수 있는 용지식별센서(미도시)가 마련되어 해당정보를 용지공급계통을 제어하는 제어부(미도시)에 제공하도록 하면된다.The possibility of feeding the paper 40 through other paths 25 and 26 is as follows: whether there is paper 40 loaded in the second paper container 22 to be replaced, and the size of the paper 40 loaded A paper identification sensor (not shown) capable of determining whether the paper is a designated size may be provided to provide a corresponding information to a controller (not shown) that controls the paper supply system.

이러한 용지식별센서의 도움을 받아 제2용지수납기(22)내에 공급가능한 용지(40)가 있다고 판단되면, 제2용지수납기(22)에 적재된 용지(40)를 감광드럼(11)으로 이송시키기 위해 해당 이송수단인 롤러(27b)들을 구동시킨다(단계 600). 이후에는 단계 200을 반복하면서 제2용지수납기(22)로부터 롤러(27)에 의해 피딩되어 해당 이송경로(25)를 통해 이송되는 용지(40)의 통과가 정상적으로 이루어 지고 있는지를 포터인터럽터(28)의 출력신호를 이용하여 판단한다.When it is determined that there is paper 40 that can be supplied in the second paper container 22 with the help of the paper identification sensor, the paper 40 loaded in the second paper container 22 is transferred to the photosensitive drum 11. In order to drive the rollers 27b, which are the transfer means (step 600). Subsequently, the port interrupter 28 checks whether the paper 40, which is fed by the roller 27 from the second paper container 22 and is conveyed through the transfer path 25, is normally made, by repeating step 200. Judgment is made using the output signal of.

반대의 경우로 용지식별센서로부터 제2용지수납기(22)내에 적재된 용지(40)가 하나도 없다는 정보를 입력받은 경우, 또는 적재된 용지(40)가 인쇄작업에 부적합한 크기를 갖는 경우에 한해서는 인쇄작업이 불가능하다고 판단하여 작업을 중지시킨다(단계 700).On the contrary, printing is performed only when the paper identification sensor receives information that no paper 40 is loaded in the second paper container 22, or when the loaded paper 40 has an inappropriate size for the print job. The operation is determined to be impossible and the operation is stopped (step 700).

이와 같이 본 발명에 따른 급지방법에 의하면 구비된 복수의 용지공급경로(24)(25)(26)를 활용하여 어느 하나의 용지공급경로상(24)(25)(26)에서의 급지에러를 타 경로를 통해 용지공급을 재시도 하도록 제어하여 인쇄작업 중단을 피할 수 있게된다.Thus, according to the paper feeding method according to the present invention utilizing the plurality of paper feed paths (24, 25, 26) provided in the paper feed path on any one of the paper supply paths (24, 25, 26) By controlling the paper feed retry through other paths, the printing job can be avoided.

복수의 용지수납기(21)(22)(23) 각각으로부터 인쇄부(10)로의 용지공급경로(24)(25)(26)중 상호 분리되어 있는 경로외에 일부 공유하는 경로(29)상에서 용지(40)걸림등에 의한 급지에러가 발생되는 경우에 한해서는 작업을 중지시켜야한다. 따라서, 바람직하게는 공유경로(29)를 최대한 줄이거나, 공유 경로(29)구간이 없도록 각 용지이송경로(24)(25)(26)를 구비시키면 1차급지에러에 대한 용지(40)공급 재시도를 언제나 할 수 있다.The paper on the path 29 which is partially shared besides the paths separated from each other among the paper feed paths 24, 25, and 26 from each of the plurality of paper containers 21, 22, 23, to the printing unit 10; 40) Work should be stopped only when a paper feed error occurs due to a jam. Therefore, it is preferable to reduce the share path 29 as much as possible, or to provide each paper feed path 24, 25, 26 so that there is no share path 29 section, the paper 40 is supplied to the primary feed error. You can always try again.

지금까지 설명된 바와 같이 본 발명에 따르면 복수의 용지수납기를 갖는 인쇄기의 용지 급지방법으로서 어느 하나의 급지경로상에서 용지걸림등에 의한 급지에러가 발생된 경우에도 다른 용지수납기로부터 타 경로를 통해 용지공급을 재시도 함으로써 인쇄작업 중단을 극복할 수 있게 한다.As described so far, according to the present invention, as a paper feeding method of a printer having a plurality of paper containers, even when a paper feed error occurs due to a paper jam on one paper feed path, the paper supply is made from another paper container through another path. Retrying allows you to overcome printing interruptions.

Claims (2)

용지를 적재하는 용지수납기가 복수로 마련되어 있고, 상기 용지수납기들 각각으로부터 상기 용지를 인쇄부로 이송하기 위한 용지공급경로를 갖고 있는 인쇄기의 용지 급지방법에 있어서,In the paper feeding method of the printing machine provided with a plurality of paper container for loading paper, and having a paper feed path for transferring the paper from each of the paper containers to the printing unit, 지정된 어느 하나의 상기 용지수납기에 적재된 용지를 급지하여 상기 인쇄부로 이송시키는 단계;와Feeding paper loaded in one of the designated paper containers and transferring the paper to the printing unit; and 지정된 상기 용지수납기에서 상기 용지공급경로를 따라 상기 인쇄부로의 용지 이송과정에서 잼등에 의한 용지 공급에러가 발생하면 타 용지수납기로부터의 새로운 용지의 급지가 가능한지를 판단하는 단계;Determining whether paper feeding from another paper container is possible when a paper supply error occurs due to a jam during a paper conveying process from the designated paper container to the printing unit along the paper supply path; 상기 타 용지수납기가 사용가능하면 상기 타 용지수납기로부터 새로운 용지를 급지하여 상기 인쇄부로 공급하는 단계;Supplying new paper from the other paper container to the printing unit if the other paper container is available; 상기 타 용지수납기의 급지가 불가능하면 인쇄작업을 중단시키는 단계;를 포함하는 것을 특징으로 하는 인쇄기의 용지급지방법.Discontinuing the print job if the paper feeder cannot be fed. 제1항에 있어서, 지정된 상기 용지수납기에서 상기 인쇄부로의 용지 이송과정에서 잼등에 의한 용지공급에러가 발생하면 상기 타 용지수납기로부터의 새로운 용지의 급지가 가능한지를 판단하기 이전에 급지에러메세지를 표시하는 단계;를 포함하는 것을 특징으로 하는 인쇄기의 용지 급지방법.The paper feed error message according to claim 1, wherein when a paper feed error occurs due to a jam or the like during a paper conveying process from the designated paper container to the printing unit, a paper feed error message is displayed before determining whether new paper can be fed from the other paper container. Paper feeding method of a printing machine comprising a.
KR1019970068333A 1997-12-12 1997-12-12 Method of feeding paper from multiple cassettes employd in a printer KR100230342B1 (en)

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Publication number Priority date Publication date Assignee Title
KR100951862B1 (en) * 2008-05-21 2010-04-12 현대자동차주식회사 Ingredient Recycling System For Casting Process

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100951862B1 (en) * 2008-05-21 2010-04-12 현대자동차주식회사 Ingredient Recycling System For Casting Process

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