JPS568112A - Scanning type image recorder - Google Patents
Scanning type image recorderInfo
- Publication number
- JPS568112A JPS568112A JP8418079A JP8418079A JPS568112A JP S568112 A JPS568112 A JP S568112A JP 8418079 A JP8418079 A JP 8418079A JP 8418079 A JP8418079 A JP 8418079A JP S568112 A JPS568112 A JP S568112A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- width
- inverted
- image
- thinning
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Fax Reproducing Arrangements (AREA)
- Dot-Matrix Printers And Others (AREA)
- Laser Beam Printer (AREA)
- Exposure Or Original Feeding In Electrophotography (AREA)
Abstract
PURPOSE: To eliminate the thinning-down of image and achieve the improvement in the image quality of characters by changing the width of the image signal in an apparatus of a system by which nonexposed parts are visualized.
CONSTITUTION: A character code signal is applied to a terminal 1, from which it is inputted as the series signal of a signal line 9 into a processing circuit 10, by which it is inverted to an inverted signal 501. This signal is further applied as the signal 502 of an expanded pulse width Δt to a beam modulator 53. Here, if the visualizing level is defined as 504 when the inverted signal 501 is used straightly as a modulating signal, a width 505 is obtained. When the signal 502 is used as a modulating signal, the position where a scanning spot is produced moves from 511 to 512 and therefore, the exposure distribution becomes as shown by solid lines in 504 and the width to be visualized becomes 506. If the scanning speed of the scanning spot is defined as Vs, the length of the segment extends by Vs.Δt. Because of this, the thinning-down of the images may be eliminated and the image quality may be improved.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8418079A JPS568112A (en) | 1979-07-03 | 1979-07-03 | Scanning type image recorder |
US06/165,139 US4387983A (en) | 1979-07-03 | 1980-07-01 | Scan type image recording apparatus |
DE19803025089 DE3025089A1 (en) | 1979-07-03 | 1980-07-02 | SCAN IMAGING DEVICE |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8418079A JPS568112A (en) | 1979-07-03 | 1979-07-03 | Scanning type image recorder |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS568112A true JPS568112A (en) | 1981-01-27 |
JPS6333145B2 JPS6333145B2 (en) | 1988-07-04 |
Family
ID=13823276
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8418079A Granted JPS568112A (en) | 1979-07-03 | 1979-07-03 | Scanning type image recorder |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS568112A (en) |
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56156856A (en) * | 1980-05-09 | 1981-12-03 | Hitachi Ltd | Printer |
JPS57154974A (en) * | 1981-03-19 | 1982-09-24 | Sharp Corp | Recorder |
JPS5834675A (en) * | 1981-08-24 | 1983-03-01 | Ricoh Co Ltd | Scanning type image recorder |
US4396246A (en) * | 1980-10-02 | 1983-08-02 | Xerox Corporation | Integrated electro-optic wave guide modulator |
JPS60120660A (en) * | 1983-12-03 | 1985-06-28 | Matsushita Electric Ind Co Ltd | Light beam irradiating device |
JPS60120661A (en) * | 1983-12-03 | 1985-06-28 | Matsushita Electric Ind Co Ltd | Light beam irradiating device |
JPS60149066A (en) * | 1984-01-13 | 1985-08-06 | Ricoh Co Ltd | Image-recording method |
JPS60149067A (en) * | 1984-01-13 | 1985-08-06 | Ricoh Co Ltd | Recording method of image |
JPS60154268A (en) * | 1984-01-24 | 1985-08-13 | Ricoh Co Ltd | Image recording method |
JPS60154267A (en) * | 1984-01-24 | 1985-08-13 | Ricoh Co Ltd | Image recording method |
JPS6127560A (en) * | 1984-07-18 | 1986-02-07 | Konishiroku Photo Ind Co Ltd | Multicolor image forming method |
JPS635662A (en) * | 1986-06-25 | 1988-01-11 | Ricoh Co Ltd | Generation method for modulation signal in optical scanner |
US4855841A (en) * | 1987-05-25 | 1989-08-08 | Ricoh Company, Ltd. | Recording signal generating circuit for printing |
US4942407A (en) * | 1988-10-05 | 1990-07-17 | Hitachi, Ltd. | Scanning type image recording apparatus |
WO1996034320A1 (en) * | 1995-04-26 | 1996-10-31 | Hitachi, Ltd. | Electrophotographic recording device |
-
1979
- 1979-07-03 JP JP8418079A patent/JPS568112A/en active Granted
Cited By (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6226621B2 (en) * | 1980-05-09 | 1987-06-10 | Hitachi Ltd | |
JPS56156856A (en) * | 1980-05-09 | 1981-12-03 | Hitachi Ltd | Printer |
US4396246A (en) * | 1980-10-02 | 1983-08-02 | Xerox Corporation | Integrated electro-optic wave guide modulator |
JPS57154974A (en) * | 1981-03-19 | 1982-09-24 | Sharp Corp | Recorder |
JPS6258585B2 (en) * | 1981-03-19 | 1987-12-07 | Sharp Kk | |
JPS5834675A (en) * | 1981-08-24 | 1983-03-01 | Ricoh Co Ltd | Scanning type image recorder |
JPS60120660A (en) * | 1983-12-03 | 1985-06-28 | Matsushita Electric Ind Co Ltd | Light beam irradiating device |
JPS60120661A (en) * | 1983-12-03 | 1985-06-28 | Matsushita Electric Ind Co Ltd | Light beam irradiating device |
JPS60149067A (en) * | 1984-01-13 | 1985-08-06 | Ricoh Co Ltd | Recording method of image |
JPS60149066A (en) * | 1984-01-13 | 1985-08-06 | Ricoh Co Ltd | Image-recording method |
JPS60154268A (en) * | 1984-01-24 | 1985-08-13 | Ricoh Co Ltd | Image recording method |
JPS60154267A (en) * | 1984-01-24 | 1985-08-13 | Ricoh Co Ltd | Image recording method |
JPS6127560A (en) * | 1984-07-18 | 1986-02-07 | Konishiroku Photo Ind Co Ltd | Multicolor image forming method |
JPS635662A (en) * | 1986-06-25 | 1988-01-11 | Ricoh Co Ltd | Generation method for modulation signal in optical scanner |
US4855841A (en) * | 1987-05-25 | 1989-08-08 | Ricoh Company, Ltd. | Recording signal generating circuit for printing |
US4942407A (en) * | 1988-10-05 | 1990-07-17 | Hitachi, Ltd. | Scanning type image recording apparatus |
WO1996034320A1 (en) * | 1995-04-26 | 1996-10-31 | Hitachi, Ltd. | Electrophotographic recording device |
Also Published As
Publication number | Publication date |
---|---|
JPS6333145B2 (en) | 1988-07-04 |
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