JPS5467432A - Recorder - Google Patents
RecorderInfo
- Publication number
- JPS5467432A JPS5467432A JP13425677A JP13425677A JPS5467432A JP S5467432 A JPS5467432 A JP S5467432A JP 13425677 A JP13425677 A JP 13425677A JP 13425677 A JP13425677 A JP 13425677A JP S5467432 A JPS5467432 A JP S5467432A
- Authority
- JP
- Japan
- Prior art keywords
- magnification
- crt
- letter
- recorded
- letter shape
- 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.)
- Pending
Links
Landscapes
- Exposure Or Original Feeding In Electrophotography (AREA)
- Projection-Type Copiers In General (AREA)
- Printers Or Recording Devices Using Electromagnetic And Radiation Means (AREA)
Abstract
PURPOSE: To form an enlarged recorded letter having a good image by expanding the focal point of the electron beam of a CRT in accordance with the increase in the magnification thereby to increase the roundness of the letter shape.
CONSTITUTION: In case a code of twofold magnification is accommodated in a buffer memory 5, the operations of a CRT 1 and an auxiliary scanning drive system 13 are at the same speed as that of the operation of the same size but have the pulse frequencies C, S and l reduced to 1/2. The printing signals of one bit of a letter pattern memory are rcorded over two picture elements of the horizontal scanning of the CRT 1 to have a towofold magnification in length and width. According to this magnification, the focal point of the electron beam is enlarged in an intermediate manner so that the reduction in brightness is compensated by the fact that the input analog signals to a video amplifier 9 are raised to an intermediate level. As a result, a roundness apperars in the intrinsic discontinuous points of the recorded letter shape so that the envelope of the recorded picture element becomes gentle to form a letter shape having a good image and so that the printing density is maintained constant irrespective of the magnification.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13425677A JPS5467432A (en) | 1977-11-09 | 1977-11-09 | Recorder |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13425677A JPS5467432A (en) | 1977-11-09 | 1977-11-09 | Recorder |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5467432A true JPS5467432A (en) | 1979-05-30 |
Family
ID=15124037
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13425677A Pending JPS5467432A (en) | 1977-11-09 | 1977-11-09 | Recorder |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5467432A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0473389A2 (en) * | 1990-08-29 | 1992-03-04 | Canon Kabushiki Kaisha | Image processing method and apparatus |
-
1977
- 1977-11-09 JP JP13425677A patent/JPS5467432A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0473389A2 (en) * | 1990-08-29 | 1992-03-04 | Canon Kabushiki Kaisha | Image processing method and apparatus |
EP0473389B1 (en) * | 1990-08-29 | 1997-06-18 | Canon Kabushiki Kaisha | Image processing method and apparatus |
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