JPH0177941U - - Google Patents
Info
- Publication number
- JPH0177941U JPH0177941U JP1987173929U JP17392987U JPH0177941U JP H0177941 U JPH0177941 U JP H0177941U JP 1987173929 U JP1987173929 U JP 1987173929U JP 17392987 U JP17392987 U JP 17392987U JP H0177941 U JPH0177941 U JP H0177941U
- Authority
- JP
- Japan
- Prior art keywords
- light
- sheet material
- reflected
- receiving means
- paper
- 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 1
- 230000001678 irradiating effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Sorting Of Articles (AREA)
- Handling Of Sheets (AREA)
- Handling Of Cut Paper (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
- Thermal Transfer Or Thermal Recording In General (AREA)
Description
第１図及び第２図は本考案を具体化した実施例
を示すもので、第１図は本考案の構成図であり、
第２図は本考案を実施した複写機の断面図である
。
２６…投光器、２７…受光器、２９…顕色紙。
FIG. 1 and FIG. 2 show an embodiment embodying the present invention, and FIG. 1 is a configuration diagram of the present invention.
FIG. 2 is a sectional view of a copying machine embodying the present invention. 26... Emitter, 27... Light receiver, 29... Color developer paper.
Claims (1)
２９の少なくとも一方の面に光を照射する投光手
段２６と、 前記シート材２９によつて反射した反射光を受
光する受光手段２７と、 前記受光手段２７によつて受光された光の光量
あるいは波長の少なくとも一方に関連してシート
材２９の表裏及び有無を判断する判断手段とを有
することを特徴とするシート材検出装置。[Claims for Utility Model Registration] Light projecting means 26 for irradiating light onto at least one surface of a sheet material 29, such as thermal paper or color developing paper, which has a front and back surface, and reflected light reflected by the sheet material 29. A light receiving means 27 for receiving light, and a determining means for determining whether the sheet material 29 is front or back and presence/absence in relation to at least one of the amount or wavelength of the light received by the light receiving means 27. Sheet material detection device.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987173929U JPH0177941U (en) | 1987-11-13 | 1987-11-13 | |
| US07/555,293 US5081484A (en) | 1987-03-01 | 1990-07-19 | Image recording medium and detecting device therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987173929U JPH0177941U (en) | 1987-11-13 | 1987-11-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0177941U true JPH0177941U (en) | 1989-05-25 |
Family
ID=31465807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987173929U Pending JPH0177941U (en) | 1987-03-01 | 1987-11-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0177941U (en) |
-
1987
- 1987-11-13 JP JP1987173929U patent/JPH0177941U/ja active Pending
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