JPH0446449U - - Google Patents
Info
- Publication number
- JPH0446449U JPH0446449U JP8827290U JP8827290U JPH0446449U JP H0446449 U JPH0446449 U JP H0446449U JP 8827290 U JP8827290 U JP 8827290U JP 8827290 U JP8827290 U JP 8827290U JP H0446449 U JPH0446449 U JP H0446449U
- Authority
- JP
- Japan
- Prior art keywords
- photoreceptor
- electrophotographic apparatus
- detecting
- image information
- toner
- 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
- 108091008695 photoreceptors Proteins 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims 4
- 230000002159 abnormal effect Effects 0.000 claims 1
- 230000005856 abnormality Effects 0.000 claims 1
- 238000000034 method Methods 0.000 claims 1
- 230000000007 visual effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Description
第１図は本考案の一実施例による電子写真装置
における感光対回りの概略構成を示す説明図、第
２図は第１図に示した電子写真装置の濃度比較に
関する制御動作を示すフローチヤートである。
符号の説明、１０１……感光体ドラム、１０３
……帯電器、１０４……現像器、１０５……転写
分離器、１０８……感光体トナー濃度センサ、１
１２……現像器内トナー濃度センサ、１１６……
画像濃度センサ、１５０……制御部、１５０ｂ…
…ＣＰＵ、１５０ｄ……ＲＡＭ、１５１……表示
部、１５２……ブザー。
FIG. 1 is an explanatory diagram showing a schematic configuration of a photosensitive pair in an electrophotographic apparatus according to an embodiment of the present invention, and FIG. 2 is a flowchart showing a control operation regarding density comparison in the electrophotographic apparatus shown in FIG. be. Explanation of symbols, 101... Photosensitive drum, 103
... Charger, 104 ... Developer, 105 ... Transfer separator, 108 ... Photoreceptor toner density sensor, 1
12...Toner concentration sensor in developing device, 116...
Image density sensor, 150...control unit, 150b...
...CPU, 150d...RAM, 151...Display section, 152...Buzzer.
Claims (1)
い、その表面に静電潜像を形成する感光体と、 前記感光体上の静電潜像に対し、トナーにより
現像処理を実行する現像手段とを備え、 前記現像手段により顕像化された前記画像情報
を転写紙に転写した後、定着して排出する電子写
真装置において、 前記感光体上のトナー濃度を検出する第１の検
出手段と、 前記現像手段内におけるトナー濃度を検出する
第２の検出手段と、 前記転写紙上の画像濃度を検出する第３の検出
手段と、 前記複数の検出手段からの出力を比較すること
により感光体回りの異常を検知する検知手段とを
備えたことを特徴とする電子写真装置。 (2) 前記請求項１において、 前記検知手段が異常値を検知したときに作動す
る、視覚或いは（及び）聴覚に訴える手段を備え
たことを特徴とする電子写真装置。[Scope of Claim for Utility Model Registration] (1) A photoreceptor that forms an electrostatic latent image on its surface by exposing it to light based on image information after being charged, and for the electrostatic latent image on the photoreceptor, an electrophotographic apparatus comprising a developing means for performing a developing process using toner, and transferring the image information visualized by the developing means to a transfer paper, fixing it, and ejecting the image information, the toner concentration on the photoreceptor being a first detection means for detecting the toner density within the developing means; a third detection means for detecting the image density on the transfer paper; An electrophotographic apparatus comprising: a detection means for detecting an abnormality around a photoreceptor by comparing outputs. (2) The electrophotographic apparatus according to claim 1, further comprising a visual and/or auditory appealing device that is activated when the detection device detects an abnormal value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8827290U JPH0446449U (en) | 1990-08-23 | 1990-08-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8827290U JPH0446449U (en) | 1990-08-23 | 1990-08-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0446449U true JPH0446449U (en) | 1992-04-20 |
Family
ID=31821371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8827290U Pending JPH0446449U (en) | 1990-08-23 | 1990-08-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0446449U (en) |
-
1990
- 1990-08-23 JP JP8827290U patent/JPH0446449U/ja active Pending
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