JPH036639U - - Google Patents
Info
- Publication number
- JPH036639U JPH036639U JP6592589U JP6592589U JPH036639U JP H036639 U JPH036639 U JP H036639U JP 6592589 U JP6592589 U JP 6592589U JP 6592589 U JP6592589 U JP 6592589U JP H036639 U JPH036639 U JP H036639U
- Authority
- JP
- Japan
- Prior art keywords
- document
- document table
- light
- detection point
- back side
- 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
- 238000001514 detection method Methods 0.000 claims description 8
- 238000010586 diagram Methods 0.000 description 4
- 239000011521 glass Substances 0.000 description 1
Landscapes
- Holders For Sensitive Materials And Originals (AREA)
- Exposure Or Original Feeding In Electrophotography (AREA)
- Facsimiles In General (AREA)
- Facsimile Scanning Arrangements (AREA)
Description
第１図はこの考案の一実施例の反射型フオトセ
ンサの配置例を示す概略構成図、第２図は同じく
その原稿台における検知点の配置例を示す平面図
、第３図は同じくその原稿検知手段の構成例を示
す説明図、第４図は同じくその原稿押え部材開閉
検知手段の構成例を示す説明図、第５図は同じく
その制御部の構成例を示すブロツク図、第６図乃
至第８図はそれぞれこの考案の一実施例の作用を
示すフロー図である。
１０……原稿台（コンタクトガラス）、１２…
…反射型フオトセンサ（原稿検知手段）、１２ａ
……ＬＥＤ（発光部）、１２ｂ……フオトトラン
ジスタ（受光部）、１３……原稿、１４……原稿
押え板、２１……第１の走査部材、２２……第２
の走査部材、２８……スイツチ、３０……マイク
ロコンピユータ（ＣＰＵ）（原稿有無判定手段）
。
FIG. 1 is a schematic configuration diagram showing an example of the arrangement of a reflective photo sensor according to an embodiment of this invention, FIG. 2 is a plan view showing an example of the arrangement of detection points on the document table, and FIG. FIG. 4 is an explanatory diagram showing an example of the structure of the means, FIG. 4 is an explanatory diagram showing an example of the structure of the document holding member opening/closing detection means, FIG. 5 is a block diagram showing an example of the control section thereof, and FIGS. FIG. 8 is a flowchart showing the operation of one embodiment of this invention. 10... Original table (contact glass), 12...
...Reflection type photo sensor (document detection means), 12a
...LED (light emitting section), 12b...phototransistor (light receiving section), 13...document, 14...document presser plate, 21...first scanning member, 22...second
scanning member, 28...switch, 30... microcomputer (CPU) (document presence/absence determination means)
.
Claims (1)
稿を走査するために該原稿台の裏面側で該原稿台
に沿つて移動する走査部材とを備え、該走査部材
を用いて前記原稿の画像を読み取るか露光する装
置において、 前記原稿台上の少なくとも所定の検知点をその
原稿台の裏面側から照射する発光部と、前記検知
点からの反射光を受光する受光部とからなる原稿
検知手段と、 前記原稿検知手段による受光部の受光量から検
知点における原稿の有無を判定する原稿有無判定
手段とからなり、 前記原稿検知手段を前記走査部材の作動を妨げ
ない位置に固設したことを特徴とする原稿検知装
置。[Claims for Utility Model Registration] A transparent document table, and a scanning member that moves along the document table on the back side of the document table in order to scan the document placed on the document table, An apparatus for reading or exposing an image of the document using the scanning member, comprising: a light emitting section that illuminates at least a predetermined detection point on the document table from the back side of the document table; and a light emitting section that emits light reflected from the detection point. a document detecting means comprising a light receiving section that receives light; and a document presence/absence determining means for determining the presence or absence of a document at a detection point based on the amount of light received by the light receiving section by the document detecting means; A document detection device characterized in that it is fixedly installed in a position that does not interfere with the document detection device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6592589U JPH036639U (en) | 1989-06-06 | 1989-06-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6592589U JPH036639U (en) | 1989-06-06 | 1989-06-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH036639U true JPH036639U (en) | 1991-01-23 |
Family
ID=31598196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6592589U Pending JPH036639U (en) | 1989-06-06 | 1989-06-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH036639U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS626244A (en) * | 1985-07-02 | 1987-01-13 | Matsushita Electric Ind Co Ltd | Original size detecting device for copying machine |
-
1989
- 1989-06-06 JP JP6592589U patent/JPH036639U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS626244A (en) * | 1985-07-02 | 1987-01-13 | Matsushita Electric Ind Co Ltd | Original size detecting device for copying machine |
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