JPH0481140U - - Google Patents
Info
- Publication number
- JPH0481140U JPH0481140U JP12542890U JP12542890U JPH0481140U JP H0481140 U JPH0481140 U JP H0481140U JP 12542890 U JP12542890 U JP 12542890U JP 12542890 U JP12542890 U JP 12542890U JP H0481140 U JPH0481140 U JP H0481140U
- Authority
- JP
- Japan
- Prior art keywords
- lens
- copying machine
- variable magnification
- scanning carriage
- carriage
- 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 2
- 108091008695 photoreceptors Proteins 0.000 description 2
- 239000011521 glass Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Variable Magnification In Projection-Type Copying Machines (AREA)
- Exposure Or Original Feeding In Electrophotography (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説
明図、第７図はレンズ位置と走査キヤリツジの退
避距離との関係を示すグラフである。
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、３６…
…不揮発性メモリ。
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 the lens position control operation in the variable magnification copying machine shown in FIG. 1, and FIG. FIG. 7, which is an explanatory diagram showing the initialization process, is a graph showing the relationship between the lens position and the retraction distance of the scanning carriage. 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, 36...
...Non-volatile memory.
Claims (1)
の双方を駆動する変倍複写機において、前記レン
ズの位置を記憶するメモリと、前記レンズの移動
に先立ち前記メモリに記憶されている前記レンズ
の位置と指定された複写倍率に対応するレンズ位
置の差に応じた距離だけ前記走査キヤリツジを走
査方向に退避させる制御手段とを設けたことを特
徴とする変倍複写機。 In a variable magnification copying machine in which a common motor drives both a scanning carriage and a lens, a memory for storing the position of said lens and a designated position of said lens stored in said memory prior to movement of said lens; A variable magnification copying machine comprising: a control means for retracting the scanning carriage in a scanning direction by a distance corresponding to a difference in lens position corresponding to a copying magnification.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12542890U JP2524170Y2 (en) | 1990-11-27 | 1990-11-27 | Variable magnification copier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12542890U JP2524170Y2 (en) | 1990-11-27 | 1990-11-27 | Variable magnification copier |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0481140U true JPH0481140U (en) | 1992-07-15 |
| JP2524170Y2 JP2524170Y2 (en) | 1997-01-29 |
Family
ID=31873027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12542890U Expired - Lifetime JP2524170Y2 (en) | 1990-11-27 | 1990-11-27 | Variable magnification copier |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2524170Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06337475A (en) * | 1993-05-28 | 1994-12-06 | Canon Inc | Image reading device |
-
1990
- 1990-11-27 JP JP12542890U patent/JP2524170Y2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06337475A (en) * | 1993-05-28 | 1994-12-06 | Canon Inc | Image reading device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2524170Y2 (en) | 1997-01-29 |
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