US4884149A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Image recording with data transmission bypass and shift register
Assignee: Konica Minolta Inc
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Filing: 1988-03-22
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Granted: 1989-11-28
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Expires: 2008-03-22
Abstract
Abstract The object of the present invention is to provide an image forming apparatus capable of enabling high-speed continuous copy of a same single-color image, wherein the apparatus is incorporated a shift register between an image reader and a laser beam generator for performing imagewise exposure onto a photoreceptor. The shift register has a circulation circuit connecting between an output and an input side thereof. After an image data corresponding to a sheet of original document is inputted into the shift register, the circulation circuit is actuated and circulates the image data, thereby repeatedly outputting the image data to the laser beam generator by the number of required times.
Inventors
- 👤 Hisashi Shoji
- 👤 Satoshi Haneda
- 👤 Kunihisa Yoshino
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 19:39
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/32; H04N1/32358; H04N1/32486; H04N1/46; H04N1/50; H04N1/506; H04N2201/00; H04N2201/0077; H04N2201/0081; H04N2201/0082; H04N2201/32; H04N2201/3285; H04N2201/3287
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
157 words
An image forming apparatus comprising a data introducing means for introducing an image data to be recorded, an image carrying means for producing an image thereon, a writing means for writing the image onto said image carrying means in accordance with the image data, a transmission means for transmitting the image data from said introducing means to said writing means, said transmission means having a shift register for sequentially shifing the image data therethrough so that image data is transferred to the writing means with a predetermined time delay, a bypass line for bypassing said shift-register so that said image data is transferred directly to the writing means without said predetermined time delay, a circulation line for circulating the image data from an outlet to an inlet of said shift register, and a switch means for establishing a transmission mode of said trransmission means by selectively connecting said shift register, said bypass line and said circulation line.
Claim 2
Dependent Claim
157 words
An image forming apparatus comprising a data introducing means for introducing an image data to be recorded, an image carrying means for producing an image thereon, a writing means for writing the image onto said image carrying means in accordance with the image data, a transmission means for transmitting the image data from said introducing means to said writing means, said transmission means having a shift register for sequentially shifing the image data therethrough so that image data is transferred to the writing means with a predetermined time delay, a bypass line for bypassing said shift-register so that said image data is transferred directly to the writing means without said predetermined time delay, a circulation line for circulating the image data from an outlet to an inlet of said shift register, and a switch means for establishing a transmission mode of said trransmission means by selectively connecting said shift register, said bypass line and said circulation line.
Claim 3
Dependent Claim
23 words
The apparatus of claim 1, wherein said writing means comprises a light exposure means for performing a light-exposure onto said image carrying means.
Claim 4
Dependent Claim
12 words
The apparatus of claim 1, wherein said image carrying means is rotatable.
Claim 5
Dependent Claim
21 words
The apparatus of claim 1, wherein said image carrYing means produces a latent image thereon in response to the light exposure.
Claim 6
Dependent Claim
102 words
The apparatus of claim 1, wherein said switch means comprises a switch member and a control means for controlling said switch means so that said transmission means has at least three transmitting mode of which the first mode is a delay mode where the image data is transmitted with a delay time necessary to pass through said shift register, the second mode is a by-pass mode where the image data is transmitted through said by-pass line, and the third mode is a circulating mode where the imaqe data once transmitted through said shift register is circulated into inlet of said shift register.
Claim 7
Dependent Claim
50 words
The apparatus of claim 5, wherein said shift register has plural kinds of shifting steps corresponding to plural kinds of data size of the image data, and wherein, in the circulating mode, said control means selects a shifting step in accordance with the data size of the introduced image data.
Claim 8
Dependent Claim
73 words
The apparatus of claim 5, wherein there is further provided a binary coding means for coding the image data into a binary data and a multi-value coding means for converting a binary data into a multi-value data, and wherein the binary data outputted from said binary coding means is inputted into said shift register and the binary data outputted through said shift register is converted into multi-value data by said multi-value coding means.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-11-27 | 1993-05-29 | 1993-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-11-27 | 1997-05-29 | 1997-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-11-27 | 2001-05-29 | 2001-11-28 | $7700.00 | Window Closed / Lapsed |