JPH0354954U - - Google Patents
Info
- Publication number
- JPH0354954U JPH0354954U JP11584689U JP11584689U JPH0354954U JP H0354954 U JPH0354954 U JP H0354954U JP 11584689 U JP11584689 U JP 11584689U JP 11584689 U JP11584689 U JP 11584689U JP H0354954 U JPH0354954 U JP H0354954U
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- pipe wall
- heater
- wall temperature
- detecting means
- 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
- 238000009434 installation Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 108091008695 photoreceptors Proteins 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Landscapes
- Exposure Or Original Feeding In Electrophotography (AREA)
- Control Of Exposure In Printing And Copying (AREA)
Description
第１図及び第２図は本考案による光量変動防止
装置及びこれを用いた電子写真装置を示す正面図
及び側面図、第３図はヒータの敷設状況の詳細を
示す斜視図、第４図はヒータの駆動系を示すブロ
ツク図、第５図は本考案のヒータの通電制御の処
理を示すメインルーチンのフローチヤート、第６
図は第５図のヒータオン・オフ処理の詳細を示す
フローチヤートである。
２……蛍光灯、３……光学系、４……ヒータ、
４ａ……ヒータ線、５……感光体、１４、１５…
…サーミスタ、１４……ソレノイド、１５……サ
ーミスタ、１７……制御部、１８……駆動部、１
９，２０……ＳＳＲ（固体リレー）。
1 and 2 are front and side views showing a light intensity fluctuation prevention device according to the present invention and an electrophotographic apparatus using the same, FIG. 3 is a perspective view showing details of the installation situation of the heater, and FIG. 4 is a FIG. 5 is a block diagram showing the drive system of the heater; FIG.
This figure is a flowchart showing details of the heater on/off process of FIG. 5. 2...Fluorescent lamp, 3...Optical system, 4...Heater,
4a... Heater wire, 5... Photoreceptor, 14, 15...
... thermistor, 14 ... solenoid, 15 ... thermistor, 17 ... control section, 18 ... drive section, 1
9,20...SSR (solid state relay).
Claims (1)
真方式の複写機において、予め設定した設定温度
を基準とし、前記蛍光灯の両端部及び該両端部以
外の管体を加熱する少なくとも２セクシヨンのヒ
ータを有する加熱手段と、前記分割されたヒータ
敷設領域の各管壁温度を検出する管壁温度検出手
段と、該管壁温度検出手段で検出した各管壁温度
が前記基準値に対して高温側にある時に対応する
セクシヨンのヒータをオフにさせると共に前記管
壁温度が低温側にある時に対応するセクシヨンの
ヒータをオンさせる制御手段とを設けたことを特
徴とする複写機の光量変動防止装置。 In an electrophotographic copying machine that uses a fluorescent lamp as a light source for reading originals, at least a two-section heater that heats both ends of the fluorescent lamp and a tube body other than the both ends based on a preset temperature. a heating means having: a pipe wall temperature detecting means for detecting the temperature of each pipe wall in the divided heater installation area; and a pipe wall temperature detecting means for detecting the temperature of each pipe wall in the divided heater installation area, and each pipe wall temperature detected by the pipe wall temperature detecting means being on the high temperature side with respect to the reference value. A device for preventing fluctuations in light amount for a copying machine, characterized in that the apparatus is provided with a control means for turning off the heater of the corresponding section when the tube wall temperature is on the low temperature side, and turning on the heater of the corresponding section when the tube wall temperature is on the low temperature side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11584689U JPH0354954U (en) | 1989-10-03 | 1989-10-03 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11584689U JPH0354954U (en) | 1989-10-03 | 1989-10-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0354954U true JPH0354954U (en) | 1991-05-28 |
Family
ID=31664162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11584689U Pending JPH0354954U (en) | 1989-10-03 | 1989-10-03 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0354954U (en) |
-
1989
- 1989-10-03 JP JP11584689U patent/JPH0354954U/ja active Pending
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