JPH0465335U - - Google Patents
Info
- Publication number
- JPH0465335U JPH0465335U JP10842890U JP10842890U JPH0465335U JP H0465335 U JPH0465335 U JP H0465335U JP 10842890 U JP10842890 U JP 10842890U JP 10842890 U JP10842890 U JP 10842890U JP H0465335 U JPH0465335 U JP H0465335U
- Authority
- JP
- Japan
- Prior art keywords
- cooling fan
- control device
- air volume
- variable means
- fan control
- 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
- 238000001816 cooling Methods 0.000 claims description 9
- 238000005286 illumination Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Exposure Or Original Feeding In Electrophotography (AREA)
- Light Sources And Details Of Projection-Printing Devices (AREA)
Description
第１図、第２図および第３図は第１、第２、第
３の実施例に係る冷却フアン制御ブロツク図、第
４図は第３図におけるトリガ信号波形図、第５図
は制御フローチヤート、第６図は本考案が適用さ
れる複写機の概略構成図である。
１……照明ランプ、２……スキヤン部、３……
冷却フアン、１１……ＣＰＵ、１２……リレー、
１４……フアンモータ。
Figures 1, 2, and 3 are cooling fan control block diagrams according to the first, second, and third embodiments, Figure 4 is a trigger signal waveform diagram in Figure 3, and Figure 5 is a control flow. FIG. 6 is a schematic diagram of a copying machine to which the present invention is applied. 1...Illumination lamp, 2...Scan section, 3...
Cooling fan, 11...CPU, 12...Relay,
14...Fan motor.
Claims (1)
照明ランプが配置されるスキヤナ部を冷却フアン
を制御して冷却する冷却フアン制御装置において
、前記照明ランプの点灯時間から前記スキヤナ部
の温度上昇を予測し、前記冷却フアンの風量を変
化させる風量可変手段を備えたことを特徴とする
冷却フアン制御装置。 (2) 請求項１記載において、前記風量可変手段
は、フアンモータのタツプを切り換えるタツプ切
り換え手段で構成されることを特徴とする冷却フ
アン制御装置。 (3) 請求項１記載において、前記風量可変手段
は、前記フアンモータの駆動電圧を変化させる電
圧可変手段で構成されることを特徴とする冷却フ
アン制御装置。 (4) 請求項１記載において、前記風量可変手段
は、前記フアンモータに印加する電圧のデユーテ
イ比を制御するデユーテイ制御手段で構成される
ことを特徴とする冷却フアン制御装置。[Claims for Utility Model Registration] (1) In a cooling fan control device that controls a cooling fan to cool down an illumination lamp that generates heat when lit and a scanner section in which this illumination lamp is disposed, A cooling fan control device comprising an air volume variable means for predicting a temperature rise in a scanner section and changing the air volume of the cooling fan. (2) A cooling fan control device according to claim 1, wherein the air volume variable means comprises tap switching means for switching a tap of a fan motor. (3) The cooling fan control device according to claim 1, wherein the air volume variable means comprises voltage variable means for changing the drive voltage of the fan motor. (4) The cooling fan control device according to claim 1, wherein the air volume variable means comprises duty control means for controlling a duty ratio of the voltage applied to the fan motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10842890U JPH0465335U (en) | 1990-10-18 | 1990-10-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10842890U JPH0465335U (en) | 1990-10-18 | 1990-10-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0465335U true JPH0465335U (en) | 1992-06-05 |
Family
ID=31855430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10842890U Pending JPH0465335U (en) | 1990-10-18 | 1990-10-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0465335U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013098762A (en) * | 2011-11-01 | 2013-05-20 | Sharp Corp | Image reading apparatus |
-
1990
- 1990-10-18 JP JP10842890U patent/JPH0465335U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013098762A (en) * | 2011-11-01 | 2013-05-20 | Sharp Corp | Image reading apparatus |
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