Claims
- 1. A copying machine capable of producing a copy with a filing margin comprising:
- a glass platen for supporting a document to be copied;
- an image forming means for forming on a copying paper an image of the document placed on said glass platen, including
- a magnification varying means for varying magnification for projecting the image on the document to the copying paper, and
- an image shift means for shifting a transfer position of the image of the document on a copying paper with respect to the direction of conveyance of the copying paper;
- a mode selecting means for selecting one of a filing margin adjusting mode in which a filing margin is formed by said image shift means,
- a variable magnification shift mode in which a filing margin is formed by said image shift means and by said magnification varying means with reduced magnification, and
- a nonshift mode in which no filing margin is formed; and
- a control means for controlling said image forming means in accordance with a type of a document, a type of a copying paper, and the mode selected by said mode selecting means.
- 2. A copying machine capable of producing a copy with a filing margin according to claim 1, wherein
- in the case of copying an image on a single-sided document to one side of a copying paper, or
- in the case of copying images on both the sides of a double-sided document to both the sides of a single copying paper,
- said control means controls said image forming means to copy in the nonshift mode regardless of the selection of the filing margin adjusting mode.
- 3. A copying machine capable of producing a copy with a filing margin according to claim 2, wherein
- in the case where after a first document of two separate single-sided documents each having an image only one side thereof is copied on a first side of a copying paper, a second document is to be copied on a second side of the copying paper, or
- in the case where after a first side of a double-sided document having images on both the sides thereof is copied on a first copying paper, a second side of the double-sided document is copied on a second separate copying paper,
- said control means controls said image forming means in said filing margin adjusting mode when the filing margin adjusting mode is selected.
- 4. A copying machine capable of producing a copy with a filing margin according to claim 1, wherein
- in the case of copying a first side and a second side of a double-sided document to both the sides of a single copying paper, or
- in the case of copying two single-sided documents to both the sides of a single copying paper,
- when said variable magnification shift mode is selected, said control means controls said image forming means so that a filing margin is formed on a predetermined marginal side of the copying paper in copying a first side of the copying paper, and a filing margin is formed on the opposite side to the predetermined marginal side in copying a second side of the copying paper.
- 5. A copying machine capable of producing a copy with a filing margin comprising:
- a glass platen for supporting a document to be copied;
- a document conveying means which conveys a single-sided document having an image on one side thereof or each side of a double-sided document having images on both the sides thereof to be in contact with said glass platen sequentially;
- an image forming means for forming on a copying paper an image of the document placed in contact with said glass platen by said document conveying means, which includes
- an image shift means for shifting a transfer position of the image of the document on a copying paper to form a filing margin on a marginal side of the copying paper;
- a mode selecting means for selecting one of a plurality of modes including
- a filing margin adjusting mode in which a filing margin is formed, and
- a nonshift mode in which no filing margin is formed; and
- a control means for controlling said image forming means in accordance with the mode selected by said mode selecting means,
- in the case where a double-sided document is conveyed by said document conveying menas, the filing margin adjusting mode is selected, and a first side of the double-sided document is to be copied, said control means controlling said image forming means to form no filing margin regardless of the selection of the filing margin adjusting mode.
- 6. A copying machine capable of producing a copy with a filing margin according to claim 5, wherein siad control means controls said image forming means to form a filing margin in the case where a double-sided document is conveyed by said document conveying means, the filing margin adjusting mode is selected, and a second side of the double-sided document is to be copied.
- 7. A copying machine capable of producing a copy with a filing margin according to claim 6, wherein
- said document conveying means includes
- a conveying member which conveys a document to be in contact with said glass platen and discharges the document from the surface of said glass platen, and
- an inverting member which inverts the document discharged from the surface of said glass platen and places the inverted document in contact with said glass platen.
- 8. A copying machine capable of producing a copy with a filing margin comprising:
- a glass platen for supporting a document to be copied;
- an image forming means for forming on a copying paper an image of the document placed on said glass platen, including
- a magnification varying means for varying magnification for projecting the image on the document to the copying paper, and
- an image shift means for shifting a transfer position of the image of the document to form a filing margin on a predetermined marginal side of the copying paper,
- a duplex means for inverting a copying paper which has a copied image on a first side and re-supplying the copying paper to said image forming means;
- a mode selecting means for selecting one of a plurality of modes including
- a variable magnification shift mode in which the image transfer position is shifted by said image shift means and the projecting magnification is reduced by said magnification varying means, and
- a nonshift mode in which no filing mode is formed;
- a control means for controlling said image forming means in accordance with the mode selected by said mode selecting means,
- in the case where the variable magnification shift mode is selected and each of both the sides of a double-sided document is to be copied by using said duplex means, said control means controlling said image forming means so that a filing margin is formed on a predetermined marginal side in copying a first side of the double-sided document and a filing margin is formed on the opposite side to the predetermined marginal side in copying a second side of the double-sided document.
- 9. A copying machine capable of producing a copy with a filing margin comprising:
- a glass platen for supporting a document to be copied;
- a document conveying means which conveys a single-sided document having an image on one side thereof or each side of a double-sided document having images on both the sides thereof to be in contact with said glass platen sequentially;
- an image forming means for forming on a copying paper an image of the document placed on said glass platen, including
- a magnification varying means for varying magnification for projecting the image of the document to the copying paper, and
- an image shift means for shifting a transfer position of the image of the document to form a filing margin on a marginal side of the copying paper;
- a duplex means for inverting a copying paper which has a copied image on a first side and re-supplying the inverted copying paper to said image forming means;
- a first mode selecting means for selecting one of a single-sided document single-side copying mode in which an image on one side of a document is copied on one side of a copying paper,
- a single-sided document double-side copying mode in which images on one side of each of two single-sided documents, respectively, are copied on both the sides of a copying paper,
- a double-sided document single-side copying mode in which images on both the sides of a double-sided document, respectively, are copied on one side of each of two copying papers, and
- a double-sided document double-side copying mode in which images on both the sides of a double-sided document, respectively, are copied on both the sides of a copying paper, respectively,
- a second mode selecting means for selecting one of a filing margin adjusting mode in which a filing margin is formed by said image shift means,
- a variable magnification shift mode in which a filing margin is formed by said image shift means and the magnification for projecting the image of the document is reduced in size so that the image of the document is copied in the remaining space except the filing margin, and
- a nonshift mode in which no filing margin is formed; and
- a control means for controlling said image forming means in accordance with the combination of the modes selected by said first mode selecting means and said second mode selecting means.
- 10. A copying machine capable of producing a copy with a filing margin according to claim 9, wherein
- in the case where one of the single-sided document single-side copying mode and the double-sided document double-sided copying mode is selected by said first mode selecting means, and the filing margin adjusting mode is selected by said second mode selecting means,
- said control means controls said image forming means to form no filing margin in the nonshift mode regardless of the selection of the filing margin adjusting mode.
- 11. A copying machine capable of producing a copy with a filing margin, according to claim 9, wherein
- in the case where one of the single-sided document double-side copying mode and the double-sided document single-side copying mode is selected by said first mode selecting means, and the filing margin adjusting mode is selected by said second mode selecting means,
- said control means controls said image forming means so that copying is executed in the nonshift mode in copying a first document of two single-sided documents or a first side of the double-sided document, and copying is executed in the first filing margin forming mode in copying the second document of two single-sided documents or a second side of the double-sided document.
- 12. A copying machine capable of producing a copy with a filing margin according to claim 9, wherein
- in the case where one of the single-sided document double-side copying mode and the double-sided document double-side copying mode is selected by said first mode selecting means, and the variable magnification shift mode is selected by said second mode selecting means,
- said control means controls said image forming means so that a filing margin is formed on a predetermined marginal side in copying a first document of two single-sided documents or a first side of a double-sided document, and that a filing margin is formed on the opposite side to the predetermined marginal side in copying a second document of two single-sided documents or a second side of the double-sided document.
- 13. A copying machine capable of producing a copy with a filing margin according to claim 12, wherein
- in the case where the double-sided document single-side copying mode is selected by said first mode selecting means, and the variable magnification shift mode is selected by said second mode selecting means,
- said control means controls said image forming means so that a filing margin is formed in the same predetermined marginal side of each of two copying papers corresponding to each side of the double-sided document.
Priority Claims (3)
| Number |
Date |
Country |
Kind |
| 61-17400 |
Jan 1986 |
JPX |
|
| 61-17401 |
Jan 1986 |
JPX |
|
| 61-17402 |
Jan 1986 |
JPX |
|
BACKGROUND OF THE INVENTION
This is a continuation of application serial No. 007,960 filed on Jan. 28, 1987.
1. Field of the Invention
The present invention relates to a copying machine, and, more specifically, to a copying machine being capable of reliably copying an image formed on a document on a copying paper with a filing margin therein through a simple operation in copying an image formed on a single-sided document on a copying paper, in copying images each formed on one side of two single-sided documents on both the sides of a copyiny paper, respectively, in copying images formed on both the side of a double-sided document on one side of each of two copying papers, respectively, or in copying images formed on both the sides of a double-sided document on both the sides of a single copying paper, respectively.
2. Discussion of the Background
In operating a copying machine, there are four types of copying. Namely, (1) single-sided document single-side copying in which an image formed on a single-sided document is copied on one side of a copying paper, (2) single-sided document double-side copying in which images each formed on one side of each of two single-sided documents are copied on both the sides of a single copying paper, (3) double-sided document single-side copying in which images formed on both the sides of a double-sided document are copied on one side of each of two copying paper, or (4) double-sided document double-side copying in which images formed on both the sides of a double-sided document are copied on both the side of a single copying paper.
A copying machine capable of having a filing margin adjusting mode or a variable magnification shift mode has also been proposed. The filing margin adjusting mode is the mode in which, in copying an image formed on a document with a certain margin, the image transfer position on a copying paper is shifted in the direction of conveyance of the copying paper by means of exposure scanning time adjusting means or copying paper feed timing adjusting means, thereby providing a copy having a filing margin in the opposite with reference to the certain margin of the document.
On the other hand, the variable magnification shift mode is the mode in which, in copying an image formed on the document without a certain margin, the image is reduced in size by varying the copying magnification and also the image transfer position on the copying paper is shifted in the direction of conveyance of the copying paper, thereby providing a copy having a filing margin.
In producing a copy having a filing margin in one of the above-mentioned four types of copying by use of the filing margin adjusting mode or the variable magnification shift mode, sometimes, the following faulty copying operation occurs.
First, in copying image formed on a double-sided document having a filing margin in one edge on one side of each of two separate copying papers in the double-sided document single-side copying, an image formed on one side of the double-sided document is copied on a copying paper with a filing margin in one edge of the same, while an image formed on the other side of the double-sided document is copied on another copying paper with a filing margin in the opposite edge with reference to the edge of the former copying paper, therefore the resepective filing margins of the copying paper are unavailable.
Secondly, in copying images formed on a document having a filing margin in the single-sided document single-side copying, the images need to be copies as is through the normal copying operation without forming any particular mode is incorporated inadvertently into the copying operation, an unnecessary additional filing margin is formed in the copy and a portion of the image corresponding to the additional filing margin will not be copies in the copying area on a copying paper.
Thirdly, an unavailable filing margin is formed in copying a first image and a second image formed over the respective entire areas of two single-sided documents without any filing margin, or over the entire area of a double-sided document without any filing margin, in the single-sided document double-side copying or in the double-sided document double-side copying, respectively.
When the double-side copying operation is executed in the conventional variable magnification shift mode, filing margins are formed in one edge of one side of the copying paper and in the opposite edge of the other side of the copying paper, and hence these filing margins are unavailable.
Accordingly, the present invention has been made in view of the foregoing problems of the conventional copying machines. It is an object of the present invention to provide a copying machine capable of successfully producing a copy having correct filing margins through a simple operation, when the filing margin adjusting mode or the variable magnification shift mode is incorporated into any one of the above-mentioned four types of copying.
According to one aspect of the present invention, a copying machine capable of producing a copy with a filing margin comprises:
a glass platen for supporting a document to be copied;
an image forming means for forming on a copying paper an image of the document placed on said glass platen, including
a magnification varying means for varying magnification for projecting the image on the document to the copying paper, and
an image shift means for shifting a transfer position of the image of the document on a copying ppaer with respect to the direction of conveyance of the copying paper;
a mode selecting means for selecting one of a filing margin adjusting mode in which a filing margin is formed by said image shift means,
a variable magnification shift mode in which a filing margin is formed by said image shift means and by said magnification varying means with reduced magnification, and
a nonshift mode in which no filing margin is formed; and
a control means for controlling said image forming means in accordance with a type of a document, a type of a copying paper, and the mode selected by said mode selecting means.
According to another aspect of the present invention, a copying machine capable of producing a copy with a filing margin comprises:
a glass platen for supporting a document to be copied;
a document conveying means which conveys a single-sided document having an image on one side thereof or each side of a double-sided document having images on both the sides thereof to be in contact with said glass platen sequentially;
an image forming means for forming on a copying paper an image of the document placed in contact with said glass platen by said document conveying means, which includes
an image shift means for shifting a transfer position of the image of the document on a copying paper to form a filing margin on a marginal side of the copying paper;
a mode selecting means for selecting one of a plurality of modes including
a filing margin adjusting mode in which a filing margin is formed,
a nonshift mode in which no filing margin is formed; and
a control means for controlling said image forming means in accordance with the mode selected by said mode selecting means,
in the case where a double-sided document is conveyed by said document conveying means, the filing margin adjusting mode is selected, and a first side of the double-sided document is to be copies, said control means controlling said image forming means to form no filing margin regardless of the selection of the filing margin adjusting mode.
According to a further aspect of the present invention, a copying machine capable of producing a copy with a filing margin comprises:
a glass platen for supporting a document to be copied;
an image forming means for forming on a copying paper an image of the document placed on said glass platen, including
a magnification varying means for varying magnification for projecting the image on the document to the copying paper, and
an image shift means for shifting a transfer position of the image of the document to form a filing margin on a predetermined marginal side of the copying paper,
a duplex means for inverting a copying paper which has a copied image on a first side and re-supplying the copying paper to said image forming means;
a mode selecting means for selecting one of a plurality of modes including
a variable magnification shift mode in which the image transfer position is shifted by said image shift means and the projecting magnification is reduced by said magnification varying means, and
a nonshift mode in which no filing mode is formed;
a control means for controlling said image forming means in accordance with the mode selected by said mode selecting means,
in the case where the variable magnification shift mode is selected and each of both the sides of a double-sided document is to be copied by using said duplex means, said control menas controlling said image forming means so that a filing margin is formed on a predetermined marginal side in copying a first side of the double-sided document and a filing margin is formed on the opposite side to the predetermined marginal side in copying a second side of the double-sided document.
According to a still further aspect of the present invention, a copying machine capable of producing a copy with a filing margin comprises:
a glass platen for supporting a document to be copied;
a document conveying means which conveys a single-sided document having an image on one side thereof or each side of a double-sided document having images on both the sides thereof to be in contact with said glass platen sequentially;
an image forming means for forming on a copying paper an image of the document placed on said glass platen, including
a magnification varying means for varying magnification for projecting the image of the document to the copying paper, and
an image shift means for shifting a transfer position of the image of the document to form a filing margin on a marginal side of the copying paper;
a duplex means for inverting a copying paper which has a copied image on a first side and re-supplying the inverted copying paper to said image forming means;
a first mode selecting means for selecting one of a single-sided document single-side copying mode in which an image on one side of a document is copied on one side of a copying paper,
a single-sided document double-side copying mode in which images on one side of each of two single-sided documents, respectively, are copied on both the sides of a copying paper,
a double-sided document single-side copying mode in which images on both the sides of a double-sided document, respectively, are copied on one side of each of two copying papers, and
a double-sided document double-side copying mode in which images on both the sides of a double-sided document, respectively, are copied on both the sides of a copying paper, respectively.
a second mode selecting means for selecting one of a filing margin adjusting mode in which a filing margin is formed by said image shift means,
a variable magnification shift mode in which a filing margin is formed by said image shift means and the magnification for projecting the image of the document is reduced in size so that the image of the document is copied in the remaining space except the filing margin, and
a nonshift mode in which no filing margin is formed; and
a control means for controlling said image forming means in accordance with the combination of the modes selected by said first mode selecting means and said second mode selecting means.
The requirements of the present invention will be described hereinafter.
A conventional copying mechanism may be employed as the image forming unit. The image forming unit carries out a predetermined copying operation.
The image shift means provides a filing margin to a copy by shifting the image transfer position. The filing margin shift can be achieved by a conventional method among: (i) a method of varying the copying paper feed motion starting time by a predetermined time measured by a timer, (ii) a method of varying the document feed motion starting time by a predetermined time measured by a timer, (iii) a method of shifting the position of an electrostatic latent image relative to a normal position on the photosensitive member by shifting the position of the optical system for optically scanning the document, at the exposure scanning starting time, and (iv) a method of shifting a document on the glass platen from a normal position.
The conventional magnification varying means can be employed for the magnification varying means.
The conventional filing margin adjusting mode can be used for the filing margin adjusting mode in the present invention.
The conventional variable magnification shift mode can be used for the variable magnification shift mode in the present invention.
A microcomputer may be employed as the control means for controlling the copying machine.
A mechanism for automatically feeding a document onto the glass platen and, after the image of the document has been copied, discharges the document. When the document is a double-sided one and copying images on both the sides of the document are required, the document conveying means inverts the document after one of the images has been copied and feeds the document again onto the glass platen.
A mechanism which discharges a copying paper after an image has been copied on one side of the same in the single-sided document single-side copying or in the double-sided document single-side copying and, in the single-sided document double-side copying or in the double-sided document double-side copying, inverts the copying paper after an image has been copied on one side of the copying paper, and then feeds the same copying paper again to the image forming unit for copying an image on the other side of the copying paper.
The mode selecting means may comprise keys arranged in the auto-reverse document feeder or in the control panel of the copying machine.
US Referenced Citations (11)
Continuations (1)
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Number |
Date |
Country |
| Parent |
007960 |
Jan 1987 |
|
Patent Grant
4819029
