JPS5583368A - Facsimile scanning transmission system - Google Patents
Facsimile scanning transmission systemInfo
- Publication number
- JPS5583368A JPS5583368A JP15630878A JP15630878A JPS5583368A JP S5583368 A JPS5583368 A JP S5583368A JP 15630878 A JP15630878 A JP 15630878A JP 15630878 A JP15630878 A JP 15630878A JP S5583368 A JPS5583368 A JP S5583368A
- Authority
- JP
- Japan
- Prior art keywords
- original
- scanning
- leading edge
- transmitted
- scanning line
- 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
- Image Input (AREA)
- Facsimile Scanning Arrangements (AREA)
Abstract
PURPOSE: To make it possible to reproduce a normal received picture even if an original would be set slanting by detecting the slant of the leading edge of the original and then by feeding the original so that a main scan will be moved gradually into a sub-scanning direction in accordance with the detection result.
CONSTITUTION: This system consists of transmitted original 30, feed roller 31 feeding the transmitted original, motor 32 driving feed roller 31, etc. Then, when transmitted original 30 is set and a scan on its scanning surface 36 is taken, original 30 is fed slanting and when the scanning surface is in position, the horizontal position of the leading edge of original 30 shifts gradually. In this case, scanning lines 41∼48 move gradually into a sub-scanning direction against the original and according to it, the leading-edge position changes. The leading edge of the original is denoted by X2 on scanning line 41 and by X1 on scanning line 43. Namely, the back of the original is blackened and a difference in shade between the original and its back on each scanning line is utilized to detect the leading edge position of the original. Consequently, the slant and its direction can be found by making use of this.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15630878A JPS5583368A (en) | 1978-12-20 | 1978-12-20 | Facsimile scanning transmission system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15630878A JPS5583368A (en) | 1978-12-20 | 1978-12-20 | Facsimile scanning transmission system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5583368A true JPS5583368A (en) | 1980-06-23 |
Family
ID=15624952
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15630878A Pending JPS5583368A (en) | 1978-12-20 | 1978-12-20 | Facsimile scanning transmission system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5583368A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57123764A (en) * | 1981-01-23 | 1982-08-02 | Canon Inc | Image scanner |
| JPS57135573A (en) * | 1981-02-16 | 1982-08-21 | Canon Inc | Picture reader |
| JPH04103068U (en) * | 1991-02-12 | 1992-09-04 | リコーエレメツクス株式会社 | Image reading device |
| US6128106A (en) * | 1995-01-27 | 2000-10-03 | Canon Kabushiki Kaisha | Sheet conveying apparatus |
| US7457012B2 (en) * | 2001-11-09 | 2008-11-25 | Po-Hua Fang | Detecting the alignment of a document in an automatic document feeder |
-
1978
- 1978-12-20 JP JP15630878A patent/JPS5583368A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57123764A (en) * | 1981-01-23 | 1982-08-02 | Canon Inc | Image scanner |
| JPH0415661B2 (en) * | 1981-01-23 | 1992-03-18 | Canon Kk | |
| JPS57135573A (en) * | 1981-02-16 | 1982-08-21 | Canon Inc | Picture reader |
| JPH04103068U (en) * | 1991-02-12 | 1992-09-04 | リコーエレメツクス株式会社 | Image reading device |
| US6128106A (en) * | 1995-01-27 | 2000-10-03 | Canon Kabushiki Kaisha | Sheet conveying apparatus |
| US7457012B2 (en) * | 2001-11-09 | 2008-11-25 | Po-Hua Fang | Detecting the alignment of a document in an automatic document feeder |
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