JPS6320158U - - Google Patents
Info
- Publication number
- JPS6320158U JPS6320158U JP11309886U JP11309886U JPS6320158U JP S6320158 U JPS6320158 U JP S6320158U JP 11309886 U JP11309886 U JP 11309886U JP 11309886 U JP11309886 U JP 11309886U JP S6320158 U JPS6320158 U JP S6320158U
- Authority
- JP
- Japan
- Prior art keywords
- photoconductor
- copying
- photo
- photo sensor
- photo conductor
- 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 3
- 239000004020 conductor Substances 0.000 claims 3
- 230000002159 abnormal effect Effects 0.000 claims 1
- 230000005856 abnormality Effects 0.000 claims 1
- 238000000034 method Methods 0.000 claims 1
- 108091008695 photoreceptors Proteins 0.000 description 2
Landscapes
- Discharging, Photosensitive Material Shape In Electrophotography (AREA)
Description
第１図は、本考案を施したデジタルカラー複写
機の側面略図、第２図は、その感光体とフオトセ
ンサとを示す斜視図で、そのａは全体図、そのｂ
はフオトセンサの部分拡大図である。第３図は、
第１図示のカラー複写機における本考案装置のタ
イミングチヤート、第４図はフオトセンサに受光
される感光体反射の強さと周面と関係を示すもの
で、そのａは未使用状態、そのｂは使用により二
個所に傷が入つた場合のフオトセンサ出力である
。
５……感光体ドラム、１１……フオトセンサ、
３０……センサユニツト基板、３１……検知パタ
ーン、３２……発光用開口部、３３……反射光検
知用開口部、Ｂｋ……ブラツク、Ｙ……イエロー
、Ｍ……マゼンタ、Ｃ……シアン。
Fig. 1 is a schematic side view of a digital color copying machine to which the present invention has been applied, and Fig. 2 is a perspective view showing its photoreceptor and photo sensor, in which a is an overall view and b is
is a partially enlarged view of the photo sensor. Figure 3 shows
Fig. 1 is a timing chart of the device of the present invention in the color copying machine shown in Fig. 4, and Fig. 4 shows the relationship between the intensity of reflection of the photoreceptor received by the photo sensor and the surrounding surface, where a is in an unused state and b is in a used state. This is the photo sensor output when there are scratches in two places. 5... Photosensitive drum, 11... Photo sensor,
30...Sensor unit board, 31...Detection pattern, 32...Aperture for light emission, 33...Aperture for detecting reflected light, Bk...Black, Y...Yellow, M...Magenta, C...Cyan .
Claims (1)
いて、複写開始時または複写終了時等、感光体上
に潜像形成を行わない複写工程中に、感光体全周
長における感光体からの反射光量を前記フオトセ
ンサを用いて測定することにより、感光体傷、ト
ナーフイルミング等の感光体異常状態を検知する
ことを特徴とする感光体異常検知装置。 In a copying machine equipped with an image density detection photo sensor, during a copying process in which a latent image is not formed on the photo conductor, such as at the start of copying or at the end of copying, the photo sensor measures the amount of light reflected from the photo conductor over the entire circumference of the photo conductor. 1. A photoconductor abnormality detection device that detects photoconductor abnormal conditions such as photoconductor scratches and toner filming by measuring the photoconductor using a photoconductor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11309886U JPS6320158U (en) | 1986-07-23 | 1986-07-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11309886U JPS6320158U (en) | 1986-07-23 | 1986-07-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6320158U true JPS6320158U (en) | 1988-02-09 |
Family
ID=30994575
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11309886U Pending JPS6320158U (en) | 1986-07-23 | 1986-07-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6320158U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05144539A (en) * | 1991-11-18 | 1993-06-11 | American Teleph & Telegr Co <Att> | Cable inserting and removing tool |
| JPH11338322A (en) * | 1998-03-05 | 1999-12-10 | Xerox Corp | Fault identifying method for image processing device |
| JP2001305811A (en) * | 2000-04-21 | 2001-11-02 | Ricoh Co Ltd | Picture-forming device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS589185A (en) * | 1981-07-09 | 1983-01-19 | Ricoh Co Ltd | Abnormal state detecting method of photosensitive body surface |
| JPS5831561B2 (en) * | 1978-03-03 | 1983-07-07 | コ−ニング グラス ワ−クス | optical waveguide |
| JPS5957264A (en) * | 1982-09-27 | 1984-04-02 | Konishiroku Photo Ind Co Ltd | Control device of electrostatic picture recording device |
| JPS59121354A (en) * | 1982-12-27 | 1984-07-13 | インタ−ナショナル ビジネス マシ−ンズ コ−ポレ−ション | Control of operation for copying machine |
| JPS59128563A (en) * | 1983-01-13 | 1984-07-24 | Ricoh Co Ltd | Latent image carrier surface condition detector |
| JPS6150156A (en) * | 1984-08-18 | 1986-03-12 | Matsushita Graphic Commun Syst Inc | Detector of light quantity from light emitting element array |
-
1986
- 1986-07-23 JP JP11309886U patent/JPS6320158U/ja active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5831561B2 (en) * | 1978-03-03 | 1983-07-07 | コ−ニング グラス ワ−クス | optical waveguide |
| JPS589185A (en) * | 1981-07-09 | 1983-01-19 | Ricoh Co Ltd | Abnormal state detecting method of photosensitive body surface |
| JPS5957264A (en) * | 1982-09-27 | 1984-04-02 | Konishiroku Photo Ind Co Ltd | Control device of electrostatic picture recording device |
| JPS59121354A (en) * | 1982-12-27 | 1984-07-13 | インタ−ナショナル ビジネス マシ−ンズ コ−ポレ−ション | Control of operation for copying machine |
| JPS59128563A (en) * | 1983-01-13 | 1984-07-24 | Ricoh Co Ltd | Latent image carrier surface condition detector |
| JPS6150156A (en) * | 1984-08-18 | 1986-03-12 | Matsushita Graphic Commun Syst Inc | Detector of light quantity from light emitting element array |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05144539A (en) * | 1991-11-18 | 1993-06-11 | American Teleph & Telegr Co <Att> | Cable inserting and removing tool |
| JPH11338322A (en) * | 1998-03-05 | 1999-12-10 | Xerox Corp | Fault identifying method for image processing device |
| JP2001305811A (en) * | 2000-04-21 | 2001-11-02 | Ricoh Co Ltd | Picture-forming device |
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