JPH0418851U - - Google Patents
Info
- Publication number
- JPH0418851U JPH0418851U JP6005990U JP6005990U JPH0418851U JP H0418851 U JPH0418851 U JP H0418851U JP 6005990 U JP6005990 U JP 6005990U JP 6005990 U JP6005990 U JP 6005990U JP H0418851 U JPH0418851 U JP H0418851U
- Authority
- JP
- Japan
- Prior art keywords
- charger
- photosensitive drum
- evaluation
- characteristic evaluation
- charging
- 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
- 238000011156 evaluation Methods 0.000 claims description 8
- 238000005259 measurement Methods 0.000 claims description 3
- 239000000523 sample Substances 0.000 claims description 2
- 230000003068 static effect Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 claims 1
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Photoreceptors In Electrophotography (AREA)
Description
第１図は従来装置の説明図、第２図は本考案の
実施例の説明図である。
Ｄ……感光ドラム、１……感光ドラム装着脱用
回転軸、２……回転駆動源、３……ドライブユニ
ツト、４……主帯電器、５……主高圧電源ユニツ
ト、５ａ……直流電源、６……除電器、７……電
源ユニツト、８……転写用帯電器、９……電源ユ
ニツト、１０……紙剥離用帯電器、１１……電源
ユニツト、１１ａ……直流電源、１２……疲労特
性評価用帯電器、１３……電源ユニツト、１３ａ
……直流電源、１４……ねじ軸、１５……駆動源
、１６……ドライブユニツト、１７……電位測定
用プローブ、１８……コントロールユニツト、２
１……コンピユータユニツト、２２……キーボー
ド、２２ａ……リターンキー、２３……帯電電圧
設定用メモリ、２４……露光光量設定用メモリ、
２５……電位測定点設定用メモリ、２６……感光
ドラムの回転数設定用メモリ、２７……評価シー
ケンスプログラムメモリ、２８……評価基準値メ
モリ、２９，３０，３１……極性変更リレー、印
加電圧基地設定用メモリ。
FIG. 1 is an explanatory diagram of a conventional device, and FIG. 2 is an explanatory diagram of an embodiment of the present invention. D...Photosensitive drum, 1...Rotary shaft for mounting and removing photosensitive drum, 2...Rotary drive source, 3...Drive unit, 4...Main charger, 5...Main high voltage power supply unit, 5a...DC power supply , 6... Static eliminator, 7... Power supply unit, 8... Transfer charger, 9... Power supply unit, 10... Paper peeling charger, 11... Power supply unit, 11a... DC power supply, 12... ... Charger for fatigue characteristic evaluation, 13 ... Power supply unit, 13a
... DC power supply, 14 ... Screw shaft, 15 ... Drive source, 16 ... Drive unit, 17 ... Potential measurement probe, 18 ... Control unit, 2
DESCRIPTION OF SYMBOLS 1... Computer unit, 22... Keyboard, 22a... Return key, 23... Memory for setting charging voltage, 24... Memory for setting exposure light amount,
25...Memory for setting potential measurement points, 26...Memory for setting the rotation speed of the photosensitive drum, 27...Evaluation sequence program memory, 28...Evaluation reference value memory, 29, 30, 31...Polarity change relay, application Memory for voltage base setting.
Claims (1)
囲の円周方向に、主帯電器、除電器、転写用帯電
器、剥離用帯電器、疲労特性評価用帯電器、電位
測定プローブ、露光光源その他の周辺プロセスを
設けて、前記被特性評価感光ドラムに帯電または
帯電露光などを行つたのち表面電位を測定し、こ
れを基準根データと比較して評価を行うようにし
た電子写真用感光ドラムの特性評価装置において
、 前記主帯電器、転写用帯電器、疲労特性評価用
帯電器の各直流電源ユニツトのそれぞれを正極電
源と負極電源のとから形成すると共に、それぞれ
に出力電圧の極性変更リレーまたはスイツチを設
けて、その選択操作により前記被特性評価感光ド
ラムの帯電極性に対応した所要の極性の電圧を帯
電器に印加するようにしたことを特長とする電子
写真用感光ドラムの特性評価装置。[Scope of Claim for Utility Model Registration] A main charger, a static eliminator, a transfer charger, a peeling charger, a fatigue property evaluation charger in the circumferential direction around the photosensitive drum to be evaluated, which is attached to a drive source. , a potential measurement probe, an exposure light source, and other peripheral processes are provided to perform charging or charging exposure on the photosensitive drum to be characterized, and then measure the surface potential, and compare this with reference root data for evaluation. In the electrophotographic photosensitive drum characteristic evaluation apparatus, each of the DC power supply units of the main charger, transfer charger, and fatigue characteristic evaluation charger is formed from a positive electrode power source and a negative electrode power source, and each An electrophotographic device characterized in that a relay or switch for changing the polarity of the output voltage is provided in the electrification device, and a voltage of a required polarity corresponding to the charging polarity of the photosensitive drum to be evaluated is applied to the charger by selecting the relay or switch. Characteristic evaluation device for photosensitive drums.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6005990U JPH0418851U (en) | 1990-06-06 | 1990-06-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6005990U JPH0418851U (en) | 1990-06-06 | 1990-06-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0418851U true JPH0418851U (en) | 1992-02-17 |
Family
ID=31587093
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6005990U Pending JPH0418851U (en) | 1990-06-06 | 1990-06-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0418851U (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6249768B2 (en) * | 1978-05-11 | 1987-10-21 | Rca Corp | |
| JPS643266A (en) * | 1987-06-26 | 1989-01-09 | Nissan Motor | Control device for ignition timing of internal combustion engine |
| JPS6417588A (en) * | 1987-07-13 | 1989-01-20 | Hitachi Ltd | Parallel drive deflection circuit |
-
1990
- 1990-06-06 JP JP6005990U patent/JPH0418851U/ja active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6249768B2 (en) * | 1978-05-11 | 1987-10-21 | Rca Corp | |
| JPS643266A (en) * | 1987-06-26 | 1989-01-09 | Nissan Motor | Control device for ignition timing of internal combustion engine |
| JPS6417588A (en) * | 1987-07-13 | 1989-01-20 | Hitachi Ltd | Parallel drive deflection circuit |
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