JPS54115254A - Image former - Google Patents
Image formerInfo
- Publication number
- JPS54115254A JPS54115254A JP2305278A JP2305278A JPS54115254A JP S54115254 A JPS54115254 A JP S54115254A JP 2305278 A JP2305278 A JP 2305278A JP 2305278 A JP2305278 A JP 2305278A JP S54115254 A JPS54115254 A JP S54115254A
- Authority
- JP
- Japan
- Prior art keywords
- original
- laser beam
- densities
- photoreceptor
- radiated
- 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
- Dot-Matrix Printers And Others (AREA)
- Laser Beam Printer (AREA)
- Exposure Or Original Feeding In Electrophotography (AREA)
Abstract
PURPOSE: To enable image recording of medium tone to be performed by converting the signal voltages corresponding to image densities to frequency pulses and modulating laser beam by these thereby changing the spot number to be radiated to the same position of a photoreceptor.
CONSTITUTION: The scanner part 7 constituted by a light source 3, lens system 4, filter 5, photo detecting part 6 moves in the arrow 8 direction to scan the original 1 and the analog signals corresponding to the image densities of the original 1 are converted to the pulses of the frequencies corresponding to the image densities of the original 1 by a voltage-frequency converting circuit 10. The outputs of the voltage-frequency converting circuit 10 are inputted to a monostable multivibrator circuit 11, by the output whereof a laser beam modulator 22 is driven and the laser beam thus modulated horizontally sweeps the photo receptor 27 by a rotary mirror 24. At this time, it turns out that the higher the frequencies the more the number of the spots to be radiated to the same position of the photoreceptor 27, thus the densities of medium tone appear in the recorded images.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2305278A JPS54115254A (en) | 1978-02-28 | 1978-02-28 | Image former |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2305278A JPS54115254A (en) | 1978-02-28 | 1978-02-28 | Image former |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54115254A true JPS54115254A (en) | 1979-09-07 |
JPS6126664B2 JPS6126664B2 (en) | 1986-06-21 |
Family
ID=12099664
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2305278A Granted JPS54115254A (en) | 1978-02-28 | 1978-02-28 | Image former |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54115254A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5017944A (en) * | 1989-03-06 | 1991-05-21 | Victor Company Of Japan, Ltd. | Control system for information recording laser beam |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4883723A (en) * | 1972-02-08 | 1973-11-08 | ||
JPS518949A (en) * | 1974-07-10 | 1976-01-24 | Canon Kk | REEZAKIROKU SOCHI |
-
1978
- 1978-02-28 JP JP2305278A patent/JPS54115254A/en active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4883723A (en) * | 1972-02-08 | 1973-11-08 | ||
JPS518949A (en) * | 1974-07-10 | 1976-01-24 | Canon Kk | REEZAKIROKU SOCHI |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5017944A (en) * | 1989-03-06 | 1991-05-21 | Victor Company Of Japan, Ltd. | Control system for information recording laser beam |
Also Published As
Publication number | Publication date |
---|---|
JPS6126664B2 (en) | 1986-06-21 |
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