JPH0481141U - - Google Patents
Info
- Publication number
- JPH0481141U JPH0481141U JP12542990U JP12542990U JPH0481141U JP H0481141 U JPH0481141 U JP H0481141U JP 12542990 U JP12542990 U JP 12542990U JP 12542990 U JP12542990 U JP 12542990U JP H0481141 U JPH0481141 U JP H0481141U
- Authority
- JP
- Japan
- Prior art keywords
- lens
- copying machine
- magnification
- variable magnification
- copying
- 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.)
- Granted
Links
- 238000010586 diagram Methods 0.000 description 3
- 108091008695 photoreceptors Proteins 0.000 description 2
- 239000011521 glass Substances 0.000 description 1
Landscapes
- Exposure Or Original Feeding In Electrophotography (AREA)
- Variable Magnification In Projection-Type Copying Machines (AREA)
Description
第１図は本考案の変倍複写機の原稿走査部の実
施例を示す概略平面図、第２図は同原稿走査部を
感光体とともに模式的に示す概略断面図、第３図
ａはレンズ位置センサ部分の平面図、同図ｂはレ
ンズが拡大方向にあるときのレンズ位置センサ部
分の側面図、同図ｃはレンズが縮小方向にあると
きのレンズ位置センサ部分の側面図、第４図は変
倍複写機の動作を制御する回路例を示すブロツク
図、第５図は第１図に示す変倍複写機におけるレ
ンズ位置の制御動作の一例を説明するためのフロ
ーチヤート、第６図はレンズ位置初期化の処理を
示すフローチヤート、第７図はレンズの移動方向
が反転した場合のレンズ位置制御を示す説明図、
第８図は１図に示す変倍複写機におけるレンズ位
置の他の制御動作例を説明するためのフローチヤ
ート、第９図はギアにおけるバツクラツシユの発
生を示す説明図である。
１……プラテンガラス、２……走査キヤリツジ
、２ａ……露光ランプ、２ｂ……ミラー、２ｃ…
…全速キヤリツジ、２ｄ，２ｅ……ミラー、２ｆ
……半速キヤリツジ、３……レンズ、４……走査
キヤリツジ駆動ワイヤ、５……軸、６……駆動プ
ーリ、７……モータ、８，９，１０〜１３……ギ
ア、１４……駆動ギア、１５……クラツチ用ギア
、１６……ソレノイド、１７……ギア、１８……
レンズ駆動用プーリ、１９，２０……アイドラプ
ーリ、２１……レンズ駆動ワイヤ、２２……レン
ズ支持部材、２３……アクチユエータ、２３ａ…
…一部、２４……レンズ位置センサ、２４ａ，２
４ｃ……脚部、２４ｂ……発光素子、２４ｄ……
受光素子、２５……ミラー駆動用カム、２６……
ミラー、２７……ミラー保持部材、２８……カム
フオロワ、２９……フレーム、３０……感光体、
３１……操作パネル、３２……マイクロコンピユ
ータ、３３……クラツチ駆動回路、３４……モー
タ駆動回路、３５……複写機構制御装置。
FIG. 1 is a schematic plan view showing an embodiment of the document scanning section of the variable magnification copying machine of the present invention, FIG. 2 is a schematic sectional view schematically showing the same document scanning section together with a photoreceptor, and FIG. 3a is a lens FIG. 4 is a plan view of the position sensor portion; FIG. 4B is a side view of the lens position sensor portion when the lens is in the enlargement direction; FIG. 1 is a block diagram showing an example of a circuit for controlling the operation of a variable magnification copying machine, FIG. 5 is a flowchart for explaining an example of a lens position control operation in the variable magnification copying machine shown in FIG. 1, and FIG. A flowchart showing lens position initialization processing, FIG. 7 is an explanatory diagram showing lens position control when the moving direction of the lens is reversed,
FIG. 8 is a flow chart for explaining another example of the control operation for the lens position in the variable magnification copying machine shown in FIG. 1, and FIG. 9 is an explanatory diagram showing the occurrence of backlash in the gear. DESCRIPTION OF SYMBOLS 1...Platen glass, 2...Scanning carriage, 2a...Exposure lamp, 2b...Mirror, 2c...
...Full speed carriage, 2d, 2e...Mirror, 2f
... Half-speed carriage, 3 ... Lens, 4 ... Scanning carriage drive wire, 5 ... Axis, 6 ... Drive pulley, 7 ... Motor, 8, 9, 10-13 ... Gear, 14 ... Drive Gear, 15... Clutch gear, 16... Solenoid, 17... Gear, 18...
Lens drive pulley, 19, 20... Idler pulley, 21... Lens drive wire, 22... Lens support member, 23... Actuator, 23a...
...Part, 24...Lens position sensor, 24a, 2
4c... Leg portion, 24b... Light emitting element, 24d...
Light receiving element, 25...Mirror drive cam, 26...
Mirror, 27... Mirror holding member, 28... Cam follower, 29... Frame, 30... Photoreceptor,
31...Operation panel, 32...Microcomputer, 33...Clutch drive circuit, 34...Motor drive circuit, 35...Copying mechanism control device.
Claims (1)
を備え、指定された複写倍率に応じて前記レンズ
の位置を移動させる変倍複写機において、前記レ
ンズの移動方向が反転する場合には前記レンズを
一旦基準複写倍率位置を通過させた後に目標の複
写倍率位置まで移動させるレンズ位置制御手段を
設けたことを特徴とする変倍複写機。 ２ ギア及びクラツチを介してモータにより駆動
されるレンズを備え、指定された複写倍率に応じ
て前記レンズの位置を移動させる変倍複写機にお
いて、前記レンズの移動方向が反転する場合には
前記クラツチを一旦オフとして前記モータを前記
レンズが移動すべき方向に微少量回転させたのち
再度前記クラツチをオンとして前記レンズを移動
させるレンズ位置制御手段を設けたことを特徴と
する変倍複写機。[Claims for Utility Model Registration] 1. A variable magnification copying machine comprising a lens driven by a motor via a gear and moving the position of the lens according to a specified copying magnification, wherein the direction of movement of the lens is reversed. In this case, a variable magnification copying machine is provided with a lens position control means for moving the lens to a target copying magnification position after once passing the reference copying magnification position. 2. In a variable magnification copying machine, which is equipped with a lens driven by a motor via a gear and a clutch, and which moves the position of the lens according to a specified copying magnification, when the direction of movement of the lens is reversed, the clutch 2. A variable magnification copying machine, characterized in that the variable magnification copying machine is provided with a lens position control means which turns off the motor once, rotates the motor by a small amount in the direction in which the lens is to be moved, and then turns on the clutch again to move the lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12542990U JP2524171Y2 (en) | 1990-11-27 | 1990-11-27 | Variable magnification copier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12542990U JP2524171Y2 (en) | 1990-11-27 | 1990-11-27 | Variable magnification copier |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0481141U true JPH0481141U (en) | 1992-07-15 |
| JP2524171Y2 JP2524171Y2 (en) | 1997-01-29 |
Family
ID=31873028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12542990U Expired - Fee Related JP2524171Y2 (en) | 1990-11-27 | 1990-11-27 | Variable magnification copier |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2524171Y2 (en) |
-
1990
- 1990-11-27 JP JP12542990U patent/JP2524171Y2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2524171Y2 (en) | 1997-01-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |