US20030107765A1
Expired / Lapsed
US
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Image forming apparatus and image forming method
Assignee: Sharp Corp
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Filing: 1999-05-20
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Granted: —
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Expires: 2019-05-20
Abstract
Abstract Images are formed in the S-D and D-D modes and sheets of recording paper after image formation are arranged in accordance with the order of pages. A document of an odd-numbered page placed on a paper feeding tray in a document transport part is fed to an image reading part and an image is read and stored into a RAM. Subsequently, a document of an even-numbered page is fed and an image is read. A sheet of recording paper housed in a paper feeding cassette is transported to an image forming part and the image is formed on one of the surfaces of the sheet of recording paper. Further, the sheet of recording paper is transported to a path, turned upside down, and transported again to the image forming part. The image stored in the RAM is read out and formed on the other surface of the sheet of recording paper. Finally, the sheet of recording paper is transported with the other surface facing downward and ejected to an output tray. By repeating the operation, the sheets of recording paper can be ejected in accordance with the order of pages.
Inventors
- 👤 Masakazu Suzuki
- 👤 Kouichi Etoh
- 👤 Atushi Saito
- 👤 Naoyuki Kamei
- 👤 Naoto Harada
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 16:46
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/32; H04N1/32358; H04N1/3248; G; G03; G03G; G03G15/00; G03G15/22; G03G15/23; G03G15/231; G03G15/60; H04N1/00567; H04N1/0057; H04N1/00572; H04N1/00575; H04N1/00578; H04N1/0058; H04N1/00591; H04N1/00599; H04N1/00602; H04N1/00631; H04N2201/00; H04N2201/32; H04N2201/3285; H04N2201/3287
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
226 words
1 . An image forming apparatus comprising: reading means for reading an image on a document; document transporting means for sequentially transporting documents to the reading means; image forming means for forming an image on a sheet of recording paper; recording paper transporting means for transporting the sheet of recording paper; and storing means for storing image information read by the reading means, the apparatus comprising control means for allowing an image drawn on one side of each document to be sequentially read by the reading means and formed on both sides of each sheet of recording paper by the image forming means, the control means allowing an image of an odd-numbered document to be read by the reading means and stored into the storing means, allowing an image of an even-numbered document to be read by the reading means and formed on one of the surfaces of a sheet of recording paper by the image forming means, allowing the sheet of recording paper to be turned upside down by the recording paper transporting means, allowing the image stored in the storing means to be read out and formed on the other surface of the sheet of recording paper by the image forming means, and allowing the sheet of recording paper to be transported with the other surface facing downward by the recording paper transporting means.
Claim 2
Dependent Claim
226 words
1 . An image forming apparatus comprising: reading means for reading an image on a document; document transporting means for sequentially transporting documents to the reading means; image forming means for forming an image on a sheet of recording paper; recording paper transporting means for transporting the sheet of recording paper; and storing means for storing image information read by the reading means, the apparatus comprising control means for allowing an image drawn on one side of each document to be sequentially read by the reading means and formed on both sides of each sheet of recording paper by the image forming means, the control means allowing an image of an odd-numbered document to be read by the reading means and stored into the storing means, allowing an image of an even-numbered document to be read by the reading means and formed on one of the surfaces of a sheet of recording paper by the image forming means, allowing the sheet of recording paper to be turned upside down by the recording paper transporting means, allowing the image stored in the storing means to be read out and formed on the other surface of the sheet of recording paper by the image forming means, and allowing the sheet of recording paper to be transported with the other surface facing downward by the recording paper transporting means.
Claim 3
Dependent Claim
83 words
2 . The image forming apparatus of claim 1 , further comprising: detecting means for detecting the size of the document; determining means for comparing the size of the detected document with a size of a predetermined reference document and determining whether the detected document is larger or not; and thinning means for thinning out image information read from the document when the detected document is larger on the basis of the determination result and storing the resultant image into the storing means.
Claim 4
Dependent Claim
34 words
3 . The image forming apparatus of claim 1 , wherein the storage capacity of the storing means is determined on the basis of an amount of image information read from the first document.
Claim 5
Dependent Claim
229 words
4 . An image forming apparatus comprising: reading means for reading an image on a document; document transporting means for sequentially transporting documents to the reading means; image forming means for forming an image on a sheet of recording paper; recording paper transporting means for transporting the sheet of recording paper; and storing means for storing image information read by the reading means, the apparatus comprising control means for allowing images drawn on both sides of each document to be sequentially read by the reading means and formed on both sides of each sheet of recording paper by the image forming means, the control means allowing an image on the surface of a document to be read by the reading means and stored into the storing means, allowing an image on the back of the document to be read by the reading means and formed on one of the surfaces of a sheet of recording paper by the image forming means, allowing the sheet of recording paper to be turned upside down by the recording paper transporting means, allowing the image stored in the storing means to be read out and formed on the other surface of the sheet of recording paper by the image forming means, and allowing the sheet of recording paper to be transported with the other surface facing downward by the recording paper transporting means.
Claim 6
Dependent Claim
229 words
4 . An image forming apparatus comprising: reading means for reading an image on a document; document transporting means for sequentially transporting documents to the reading means; image forming means for forming an image on a sheet of recording paper; recording paper transporting means for transporting the sheet of recording paper; and storing means for storing image information read by the reading means, the apparatus comprising control means for allowing images drawn on both sides of each document to be sequentially read by the reading means and formed on both sides of each sheet of recording paper by the image forming means, the control means allowing an image on the surface of a document to be read by the reading means and stored into the storing means, allowing an image on the back of the document to be read by the reading means and formed on one of the surfaces of a sheet of recording paper by the image forming means, allowing the sheet of recording paper to be turned upside down by the recording paper transporting means, allowing the image stored in the storing means to be read out and formed on the other surface of the sheet of recording paper by the image forming means, and allowing the sheet of recording paper to be transported with the other surface facing downward by the recording paper transporting means.
Claim 7
Dependent Claim
81 words
5 . The image forming apparatus of claim 4 , further comprising: detecting means for detecting the size of the document; determining means for comparing the size of the detected document with the size of a predetermined reference document and determining whether the detected document is larger or not; and thinning means for thinning out the read image information when the detected document is larger on the basis of the determination result and storing the resultant information into the storing means.
Claim 8
Dependent Claim
38 words
6 . The image forming apparatus of claim 4 , wherein the storage capacity of the storing means is determined on the basis of the amount of the image information read from the surface of the first document.
Claim 9
Dependent Claim
116 words
7 . An image forming method of sequentially reading images drawn on one sides of documents and forming the images on both sides of a sheet of recording paper, comprising: a step of reading and storing an image of an odd-numbered document; a step of reading an image of an even-numbered document and forming the image on one of the surfaces of a sheet of recording paper; a step of turning the sheet of recording paper upside down; a step of reading out the stored image and forming the image on the other surface of the sheet of recording paper; and a step of transporting the sheet of recording paper with the other surface facing downward.
Claim 10
Dependent Claim
116 words
7 . An image forming method of sequentially reading images drawn on one sides of documents and forming the images on both sides of a sheet of recording paper, comprising: a step of reading and storing an image of an odd-numbered document; a step of reading an image of an even-numbered document and forming the image on one of the surfaces of a sheet of recording paper; a step of turning the sheet of recording paper upside down; a step of reading out the stored image and forming the image on the other surface of the sheet of recording paper; and a step of transporting the sheet of recording paper with the other surface facing downward.
Claim 11
Dependent Claim
121 words
8 . An image forming method of sequentially reading images drawn on both sides of a document and forming the images on both sides of a sheet of recording paper, comprising: a step of reading and storing an image on the surface of a document; a step of reading an image on the back of the document and forming the image on one of the surfaces of the sheet of recording paper; a step of turning the sheet of recording paper upside down; a step of reading out the stored image and forming the image on the other surface of the sheet of recording paper; and a step of transporting the sheet of recording paper with the other surface facing downward.
Claim 12
Dependent Claim
121 words
8 . An image forming method of sequentially reading images drawn on both sides of a document and forming the images on both sides of a sheet of recording paper, comprising: a step of reading and storing an image on the surface of a document; a step of reading an image on the back of the document and forming the image on one of the surfaces of the sheet of recording paper; a step of turning the sheet of recording paper upside down; a step of reading out the stored image and forming the image on the other surface of the sheet of recording paper; and a step of transporting the sheet of recording paper with the other surface facing downward.
References Cited (Backward Citations)
No citation records indexed.
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