JPH0328139U - - Google Patents
Info
- Publication number
- JPH0328139U JPH0328139U JP8898789U JP8898789U JPH0328139U JP H0328139 U JPH0328139 U JP H0328139U JP 8898789 U JP8898789 U JP 8898789U JP 8898789 U JP8898789 U JP 8898789U JP H0328139 U JPH0328139 U JP H0328139U
- Authority
- JP
- Japan
- Prior art keywords
- roller
- paper
- paper feed
- axial center
- forming apparatus
- 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
- 230000002265 prevention Effects 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Facsimiles In General (AREA)
- Delivering By Means Of Belts And Rollers (AREA)
- Manual Feeding Of Sheets (AREA)
- Registering Or Overturning Sheets (AREA)
Description
第１図は画像形成装置の一例のフアクシミリの
概略縦側断面図、第２図は給紙ローラならびに搬
送ローラの平面図、第３図は搬送ローラと画像読
み取り装置ならびにスプリングの配置相関図、第
４図は用紙搬送の説明図、第５図は従来例の用紙
搬送の説明図である。
１３……給紙ローラ、１４……給紙ガイド、１
５……重送防止部材、１６……搬送ローラ、１６
ａ……中間のローラ部分、１６ｂ……両側のロー
ラ部分、１７……画像読み取り装置、１８，１９
……スプリング、Ｄ，ｄ……外径、ｌ４，ｌ５…
…寸法、ｒ……用紙。
FIG. 1 is a schematic longitudinal sectional view of a facsimile machine as an example of an image forming apparatus, FIG. 2 is a plan view of a paper feed roller and a conveyance roller, FIG. 3 is a diagram showing the relationship between the conveyance roller, image reading device, and spring, and FIG. 4 is an explanatory diagram of paper conveyance, and FIG. 5 is an explanatory diagram of paper conveyance in a conventional example. 13...Paper feed roller, 14...Paper feed guide, 1
5... Double feeding prevention member, 16... Conveyance roller, 16
a...middle roller part, 16b...roller parts on both sides, 17...image reading device, 18, 19
... Spring, D, d ... Outer diameter, l 4 , l 5 ...
...Dimensions, r...Paper.
Claims (1)
紙を全巾を搬送する搬送ローラに、長手方向で２
個のスプリングを介して画像読み取り装置を付勢
当接させると共に、前記搬送ローラの上流側に、
用紙の巾方向中間部を給紙し且つ前記搬送ローラ
による搬送時には非駆動状態に切り換えられる給
紙ローラと、当該給紙ローラに付勢当接される重
送防止部材を設けた画像形成装置における給紙装
置において、前記搬送ローラの軸線方向中間のロ
ーラ部分に対して、その両側のローラ部分の外径
をやゝ小径に形成すると共に、前記中間ローラ部
分を前記給紙ガイド側に偏倚させて設け、かつ、
前記画像読み取り装置を付勢支持する前記２個の
スプリングを付勢力ほゞ同一の構成にして、前記
中間ローラ部分の軸線方向中心に対して前記給紙
ガイドとは反対側のスプリングまでの寸法を、前
記軸線方向中心から給紙ガイド側のスプリングま
での寸法よりもやゝ大に設定する一方、前記給紙
ローラの軸線方向中心を前記中間ローラ部分の軸
線方向中心にほゞ一致させてあることを特徴とす
る画像形成装置における給紙装置。 One side in the width direction is regulated by a paper feed guide, and two sides are attached to the conveyance roller that conveys the entire width of the paper.
The image reading device is urged into contact with the image reading device through the springs, and the
In an image forming apparatus, the image forming apparatus is provided with a paper feed roller that feeds the middle part of the paper in the width direction and is switched to a non-driving state when the paper is transported by the transport roller, and a double-feed prevention member that is urged into contact with the paper feed roller. In the paper feeding device, the outer diameter of the roller parts on both sides of the transport roller is formed to be slightly smaller than the axially intermediate roller part, and the intermediate roller part is biased toward the paper feeding guide side. provided, and
The two springs that bias and support the image reading device have substantially the same biasing force, and the dimension from the axial center of the intermediate roller portion to the spring on the opposite side of the paper feed guide is set. , the axial center of the paper feed roller is set to be slightly larger than the dimension from the axial center to the spring on the paper feed guide side, and the axial center of the paper feed roller is approximately aligned with the axial center of the intermediate roller portion; A paper feeding device in an image forming apparatus characterized by:
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8898789U JPH0712361Y2 (en) | 1989-07-27 | 1989-07-27 | Paper feeding device in image forming apparatus |
| US07/552,690 US5127644A (en) | 1989-07-16 | 1990-07-12 | Paper-supplying device for an image-forming apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8898789U JPH0712361Y2 (en) | 1989-07-27 | 1989-07-27 | Paper feeding device in image forming apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0328139U true JPH0328139U (en) | 1991-03-20 |
| JPH0712361Y2 JPH0712361Y2 (en) | 1995-03-22 |
Family
ID=31638583
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8898789U Expired - Lifetime JPH0712361Y2 (en) | 1989-07-16 | 1989-07-27 | Paper feeding device in image forming apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0712361Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4409358B2 (en) * | 2004-05-20 | 2010-02-03 | シャープ株式会社 | Image forming apparatus |
-
1989
- 1989-07-27 JP JP8898789U patent/JPH0712361Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0712361Y2 (en) | 1995-03-22 |