JPH01126773U - - Google Patents
Info
- Publication number
- JPH01126773U JPH01126773U JP2288388U JP2288388U JPH01126773U JP H01126773 U JPH01126773 U JP H01126773U JP 2288388 U JP2288388 U JP 2288388U JP 2288388 U JP2288388 U JP 2288388U JP H01126773 U JPH01126773 U JP H01126773U
- Authority
- JP
- Japan
- Prior art keywords
- document
- black level
- level
- movable optical
- scanning
- 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
- 230000003287 optical effect Effects 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 5
Landscapes
- Facsimile Scanning Arrangements (AREA)
Description
第１図は本考案によるスキヤナの一実施例を示
す概略構成図である。
１……原稿台、２……移動光学台、３……副走
査方向、４……主走査方向。
第２図は第１図の実施例に原稿をセツトした状
態を示す図である。
１……原稿台、２……移動光学台、３……副走
査方向、４……主走査方向、５……原稿。
第３図は第２図における原稿走査例を示す図で
ある。
１０……原稿読み取り区間、１１……画信号、
１２……画信号、１３……画信号有効区間。
第４図は従来のスキヤナにおける原稿セツト例
を示す図である。
２１……原稿台、２２……移動光学台、２３…
…副走査方向、２４……主走査方向、２５……原
稿。
第５図は第４図における原稿走査例を示す図で
ある。
２６……原稿読み取り区間、２７……画信号。
FIG. 1 is a schematic diagram showing an embodiment of the scanner according to the present invention. 1... Original table, 2... Moving optical table, 3... Sub-scanning direction, 4... Main scanning direction. FIG. 2 is a diagram showing a state in which an original is set in the embodiment of FIG. 1. 1... Original table, 2... Moving optical table, 3... Sub-scanning direction, 4... Main scanning direction, 5... Original. FIG. 3 is a diagram showing an example of document scanning in FIG. 2. 10... Original reading section, 11... Image signal,
12...Picture signal, 13...Picture signal valid section. FIG. 4 is a diagram showing an example of document setting in a conventional scanner. 21...Original table, 22...Moving optical table, 23...
...Sub-scanning direction, 24...Main scanning direction, 25...Document. FIG. 5 is a diagram showing an example of document scanning in FIG. 4. 26... Original reading section, 27... Image signal.
Claims (1)
置かれた原稿を移動しながら読み取り動作を行う
平面走査スキヤナにおいて、下地が白レベルで黒
レベルの文字、図等が記録されている原稿を読み
取る際に該原稿の置かれた背面を黒レベルにし初
めて前記移動光学台が白レベルを検出したときに
その時点で前記原稿の主走査方向の読み取り範囲
を設定し、前記原稿を走査し終わり再び前記背面
の黒レベルのみを走査した時に副走査終了とする
ことを含むことを特徴とする原稿位置検出装置。 In a plane scanning scanner, in which a movable optical table with an optical reading element scans the document while moving the document placed on the document table, when reading a document in which black level characters, figures, etc. are recorded on a white level background. When the movable optical bench detects the white level for the first time, the back surface on which the document is placed is set to a black level. 1. A document position detection device comprising: terminating sub-scanning when only the black level of the document is scanned.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2288388U JPH01126773U (en) | 1988-02-23 | 1988-02-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2288388U JPH01126773U (en) | 1988-02-23 | 1988-02-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01126773U true JPH01126773U (en) | 1989-08-30 |
Family
ID=31241396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2288388U Pending JPH01126773U (en) | 1988-02-23 | 1988-02-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01126773U (en) |
-
1988
- 1988-02-23 JP JP2288388U patent/JPH01126773U/ja active Pending
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