JPS6482010A - Image recording device - Google Patents
Image recording deviceInfo
- Publication number
- JPS6482010A JPS6482010A JP62241634A JP24163487A JPS6482010A JP S6482010 A JPS6482010 A JP S6482010A JP 62241634 A JP62241634 A JP 62241634A JP 24163487 A JP24163487 A JP 24163487A JP S6482010 A JPS6482010 A JP S6482010A
- Authority
- JP
- Japan
- Prior art keywords
- frequency dividing
- density
- change
- image elements
- rate
- 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
- Laser Beam Printer (AREA)
- Mechanical Optical Scanning Systems (AREA)
- Facsimile Scanning Arrangements (AREA)
- Fax Reproducing Arrangements (AREA)
Abstract
PURPOSE:To vary the speed of a motor by a simple method and to change the density of image elements by changing the frequency dividing rate of a frequency dividing means in accordance with instructions to change the density of image elements and varying a rate of a frequency input to a phase comparing means to an output clock. CONSTITUTION:When the instruction to change the density of image elements from an external device, is issued, a system controller determines the frequency dividing rate corresponding to the density, and a programmable counter 15 sets a frequency dividing rate. Accordingly to said frequency dividing rate, control clocks are divided, input to a phase comparator circuit 12, and compared with a reference clock. The control clocks output from the circuit 12 vary in proportion to the frequency dividing rate, and consequently the control clocks of a voltage controlled oscillator 14 also vary. Said clocks are compared with an output from a motor speed detector, and a motor driving circuit is controlled to change the rotating speed of a rotating polygon mirror. Thus the density of image elements can be changed by the simple method.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62241634A JPS6482010A (en) | 1987-09-25 | 1987-09-25 | Image recording device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62241634A JPS6482010A (en) | 1987-09-25 | 1987-09-25 | Image recording device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6482010A true JPS6482010A (en) | 1989-03-28 |
Family
ID=17077234
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62241634A Pending JPS6482010A (en) | 1987-09-25 | 1987-09-25 | Image recording device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6482010A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07219389A (en) * | 1993-09-07 | 1995-08-18 | Gerber Syst Corp | Equipment and method for positioning of photosensitive medium |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63210910A (en) * | 1987-02-27 | 1988-09-01 | Canon Inc | Image forming device |
-
1987
- 1987-09-25 JP JP62241634A patent/JPS6482010A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63210910A (en) * | 1987-02-27 | 1988-09-01 | Canon Inc | Image forming device |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07219389A (en) * | 1993-09-07 | 1995-08-18 | Gerber Syst Corp | Equipment and method for positioning of photosensitive medium |
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