JPH04363Y2 - - Google Patents
Info
- Publication number
- JPH04363Y2 JPH04363Y2 JP1982054325U JP5432582U JPH04363Y2 JP H04363 Y2 JPH04363 Y2 JP H04363Y2 JP 1982054325 U JP1982054325 U JP 1982054325U JP 5432582 U JP5432582 U JP 5432582U JP H04363 Y2 JPH04363 Y2 JP H04363Y2
- Authority
- JP
- Japan
- Prior art keywords
- transfer paper
- transfer
- guide plate
- feed roller
- photoreceptor drum
- 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.)
- Expired
Links
- 108091008695 photoreceptors Proteins 0.000 claims description 14
- 238000006073 displacement reaction Methods 0.000 description 1
Landscapes
- Paper Feeding For Electrophotography (AREA)
- Controlling Sheets Or Webs (AREA)
- Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)
- Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
Description
【考案の詳細な説明】
本考案は電子写真複写機に於て、感光体ドラム
に転写紙を案内する装置に関するもので、その目
的とするところは感光体ドラム上の顕像を常に最
良の状態で転写せんとするにある。[Detailed Description of the Invention] The present invention relates to a device for guiding transfer paper to a photoreceptor drum in an electrophotographic copying machine, and its purpose is to keep the developed image on the photoreceptor drum in the best condition at all times. I'm trying to transcribe it.
ところで転写部での転写紙の搬送状態は転写画
像に大きく影響する。転写紙が薄紙（約45Kg）で
あると腰が弱いので第１図ａの様に転写紙１と感
光体ドラム２との接触位置を転写チヤージヤー３
の転写位置にすると感光体ドラム１との密着が不
完全になり易く振動の影響その他により転写抜け
が発生する。そこで転写位置の少し手前から感光
体ドラムに接触させると転写チヤージヤー３のと
ころでは完全に密着し最良の転写をすることがで
きる。又転写紙が厚紙であると腰が強いので第１
図ｂの様に転写紙１′を予め転写位置の手前から
接触させると搬送路外に押し出されて紙づまりを
起す。 Incidentally, the conveyance state of the transfer paper in the transfer section greatly affects the transferred image. If the transfer paper is thin (approximately 45 kg), it will be weak, so the contact position between the transfer paper 1 and the photoreceptor drum 2 should be adjusted using the transfer charger 3 as shown in Figure 1a.
If the transfer position is set to , the contact with the photoreceptor drum 1 tends to be incomplete, and transfer omissions may occur due to the influence of vibration or other factors. Therefore, if the photosensitive drum is brought into contact with the photoreceptor drum from a position slightly before the transfer position, the transfer charger 3 will be in complete contact with the photosensitive drum, and the best transfer can be performed. Also, if the transfer paper is thick paper, it will be stiff, so
If the transfer paper 1' is brought into contact with the transfer paper 1' from before the transfer position as shown in FIG.
本考案は感光体ドラム上に形成した顕像を転写
帯電装置によつて転写紙へ転写する如くなした電
子写真複写機に於て、転写紙を感光体ドラムに送
る駆動送りローラに対して従動送りローラをスプ
リングにより圧接し、転写紙の厚みにより変位し
得る如くし、該従動ローラに連動して揺動するレ
バーに揺動ガイド板を取り付け、転写紙の厚みに
より揺動ガイド板を変位して転写紙を感光体の最
適位置に接触する如くしたものである。 The present invention is applied to an electrophotographic copying machine in which a developed image formed on a photoreceptor drum is transferred to transfer paper by a transfer charging device. The feed roller is pressed against a spring so that it can be displaced depending on the thickness of the transfer paper, a swing guide plate is attached to a lever that swings in conjunction with the driven roller, and the swing guide plate is displaced depending on the thickness of the transfer paper. The transfer paper is brought into contact with the photoreceptor at an optimal position.
第２図は本考案の第１実施例である。１０は駆
動送りローラ、１１は従動送りローラでスプリン
グ１２により駆動送りローラ１０に圧接されてい
る。１３はピン１４に枢着されたレバーで揺動ガ
イド板１５が一体に固定され、先端は従動送りロ
ーラ１１の軸１６に枢着されている。１７は固定
ガイド板、１８は感光体ドラム、１９は転写チヤ
ージヤー、２０は転写紙、２１，２２はガイド板
である。 FIG. 2 shows a first embodiment of the present invention. Reference numeral 10 denotes a driving feed roller, and 11 a driven feed roller, which is pressed against the driving feed roller 10 by a spring 12. Reference numeral 13 denotes a lever pivotally connected to a pin 14, to which a swing guide plate 15 is integrally fixed, and the tip thereof is pivotally connected to the shaft 16 of the driven feed roller 11. 17 is a fixed guide plate, 18 is a photosensitive drum, 19 is a transfer charger, 20 is a transfer paper, and 21 and 22 are guide plates.
次に作用について説明する。転写紙２０はガイ
ド板２１，２２にガイドされて駆動送りローラ１
０と従動送りローラ１１に送られ揺動ガイド板１
５と固定ガイド板１７の間を通つて感光体ドラム
１８に接触し転写チヤージヤー１９の位置で感光
体ドラム上のトナー像が転写紙２０上に転写され
る。この時従動ローラ１１が転写紙２０の厚みに
より矢印Ａの方向に変位し、レバー１３もピン１
４を中心に回動するので揺動ガイド板１５は矢印
Ｂ方向に変位する。従つて転写紙２０が厚い場合
は揺動ガイド板１５が矢印Ｂの方向に上り転写紙
が固定ガイド板１７に沿つてガイドされ転写チヤ
ージヤー１９に近い位置で感光体ドラム１８に接
触し、転写紙２０が薄い場合は揺動ガイド板１５
は上方に上らず転写紙２０は揺動ガイド板１５に
沿つて転写チヤージヤー１９から比較的はなれた
位置で感光体ドラム１８に接触する。 Next, the effect will be explained. The transfer paper 20 is guided by guide plates 21 and 22 and moved to the driving feed roller 1.
0 and the oscillating guide plate 1 sent to the driven feed roller 11.
The toner image on the photosensitive drum is transferred onto the transfer paper 20 at the position of the transfer charger 19 . At this time, the driven roller 11 is displaced in the direction of arrow A due to the thickness of the transfer paper 20, and the lever 13 is also displaced by the pin 1.
4, the swing guide plate 15 is displaced in the direction of arrow B. Therefore, when the transfer paper 20 is thick, the swinging guide plate 15 moves up in the direction of arrow B, and the transfer paper is guided along the fixed guide plate 17 and comes into contact with the photosensitive drum 18 at a position close to the transfer charger 19, and the transfer paper If 20 is thin, swing guide plate 15
The transfer paper 20 contacts the photoreceptor drum 18 along the swing guide plate 15 at a position relatively apart from the transfer charger 19 without moving upward.
第３図は本考案の第２実施例である。第１実施
例の駆動送りローラ１０が下方に、従動送りロー
ラ１１とが上方に位置し、転写紙２０が厚くなる
のに応じて従動送りローラ１１はＣ方向に変位
し、レバー１３もピン１４を中心に回動するので
揺動ガイド板１５は矢印Ｄ方向に変位する。 FIG. 3 shows a second embodiment of the present invention. The drive feed roller 10 of the first embodiment is located below, and the driven feed roller 11 is located above.As the transfer paper 20 becomes thicker, the driven feed roller 11 is displaced in the C direction, and the lever 13 is also moved to the pin 14. Since it rotates around , the swing guide plate 15 is displaced in the direction of arrow D.
従つて厚い転写紙２０は転写チヤージヤー１９
に近い位置に、薄い転写紙２０は転写チヤージヤ
ー１９から比較的はなれた位置で感光体ドラム１
８に接触する。 Therefore, the thick transfer paper 20 is transferred to the transfer charger 19.
The thin transfer paper 20 is placed near the photosensitive drum 1 at a position relatively far from the transfer charger 19.
Contact 8.
本考案によると転写紙の厚みを送りローラの変
位により検知して案内板を変位させ、転写紙が厚
い場合程転写チヤージヤーに近い位置で、転写紙
が薄くなるにつれて転写チヤージヤーからはなれ
る位置で感光体ドラムに接触するので転写紙を転
写チヤージヤーの位置で感光体ドラムに完全に密
着でき転写不良、紙づまり及び振動等の外部から
の影響をなくすことができ最良の転写を行うこと
ができる。 According to the present invention, the thickness of the transfer paper is detected by the displacement of the feed roller and the guide plate is displaced. The thicker the transfer paper is, the closer it is to the transfer charger, and the thinner the paper is, the further away from the transfer charger it is exposed to light. Since it comes into contact with the body drum, the transfer paper can be brought into perfect contact with the photoreceptor drum at the transfer charger position, eliminating external influences such as poor transfer, paper jams, and vibrations, thereby achieving the best possible transfer.
第１図ａは薄い転写紙が所定位置より下部で感
光体ドラムに接触した場合の搬送説明図、第１図
ｂは厚い転写紙が所定位置より上部で感光体ドラ
ムに接触した場合の搬送説明図、第２図は本考案
の第１実施例正面図、第３図は本考案の第２実施
例正面図である。
１０……駆動送りローラ、１１……従動送りロ
ーラ、１２……スプリング、１３……レバー、１
４……ピン、１５……揺動ガイド板、１６……ピ
ン、１７……固定ガイド板、１８……感光体ドラ
ム、１９……転写チヤージヤー、２０……転写
紙。
Figure 1a is an illustration of transport when a thin transfer paper contacts the photoreceptor drum below a predetermined position, and Figure 1b is an illustration of transport when a thick transfer paper contacts the photoreceptor drum above a predetermined position. 2 is a front view of a first embodiment of the present invention, and FIG. 3 is a front view of a second embodiment of the present invention. 10... Drive feed roller, 11... Driven feed roller, 12... Spring, 13... Lever, 1
4... Pin, 15... Swinging guide plate, 16... Pin, 17... Fixed guide plate, 18... Photosensitive drum, 19... Transfer charger, 20... Transfer paper.
Claims (1)
によつて転写紙へ転写する如くなした電子写真複
写機に於て、転写紙を感光体ドラムに送る駆動送
りローラに対して従動送りローラをスプリングに
より圧接し、転写紙の厚みにより変位し得る如く
し、該従動ローラに連動して揺動するレバーに揺
動ガイド板を取り付け、転写紙の厚みにより揺動
ガイド板を変位して転写紙を感光体の最適位置に
接触する如くした電子写真複写機に於ける転写紙
案内装置。 In an electrophotographic copying machine in which a developed image formed on a photoreceptor drum is transferred to transfer paper by a transfer charging device, a driven feed roller is used for a driving feed roller that sends the transfer paper to the photoreceptor drum. A swinging guide plate is attached to a lever that is pressed into contact with a spring and can be displaced depending on the thickness of the transfer paper, and swings in conjunction with the driven roller, and the swinging guide plate is displaced depending on the thickness of the transfer paper to move the transfer paper. A transfer paper guide device in an electrophotographic copying machine, in which a transfer paper guide device contacts a photoreceptor at an optimal position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5432582U JPS58157337U (en) | 1982-04-16 | 1982-04-16 | Transfer paper guide device in electrophotographic copying machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5432582U JPS58157337U (en) | 1982-04-16 | 1982-04-16 | Transfer paper guide device in electrophotographic copying machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58157337U JPS58157337U (en) | 1983-10-20 |
| JPH04363Y2 true JPH04363Y2 (en) | 1992-01-08 |
Family
ID=30064949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5432582U Granted JPS58157337U (en) | 1982-04-16 | 1982-04-16 | Transfer paper guide device in electrophotographic copying machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58157337U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6093465A (en) * | 1983-10-28 | 1985-05-25 | Hitachi Ltd | Paper feeding device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5786848A (en) * | 1980-11-19 | 1982-05-31 | Canon Inc | Releasing device for sheet resistration mechanism |
-
1982
- 1982-04-16 JP JP5432582U patent/JPS58157337U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5786848A (en) * | 1980-11-19 | 1982-05-31 | Canon Inc | Releasing device for sheet resistration mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58157337U (en) | 1983-10-20 |
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