JPH0468049U

JPH0468049U -

Info

Publication number: JPH0468049U
Application number: JP11261290U
Authority: JP
Priority date: 1990-10-25
Filing date: 1990-10-25
Publication date: 1992-06-16

Description

[Brief explanation of the drawing]

第１〜１１図は本発明に係る画像形成装置の一
実施例を示す図であり、第１図はその概略構成図
、第２図はその画像形成ユニツトの断面図、第３
図はその像担持体保持部材の斜視図、第４図はそ
の像担持体保持部材の正面図、第５図はその第１
収納部材から第２収納部材を取り外した状態を示
す図、第６図はその制御部材の構成図、第７図は
その係合部材と浮出ラツチの係合を解除した状態
を示す図、第８図は、その開放部材の開閉に伴う
ガイド板の移動状態を示す図、第９図はローラの
移動量と開閉部材の開閉量の関係を示す図、第１
０はジヤム状態検出手段のブロツク図、第１１図
は第１収納部材の他端部に突起を形成した態様を
示す図であり、第１１図ａはその上面図、第１１
図ｂはその側面図である。１……複写機（画像形成装置）、１ａ……本体
、１０……センサ（ジヤム状態検出手段）、２１
……無端状ベルト（像担持体）、２３……転写チ
ヤージヤ（転写装置）、５１……第１収納部材、
５１ａ，５３ｂ……一端部（開閉部材側端部）、
５３……第２収納部材、５４……ベルトマガジン
（像担持体保持部材）、５８，６１……爪（ロツ
ク手段）、５９……ワイヤ部材（制御部材）、６
０……ソレノイド（制御部材）、６３，６５……
浮出ラツチ（制御部材）、６７……開閉部材、６
８……ガイド板、６９……コントローラ（ジヤム
状態検出手段）。 1 to 11 are diagrams showing one embodiment of the image forming apparatus according to the present invention, in which FIG. 1 is a schematic configuration diagram thereof, FIG. 2 is a sectional view of the image forming unit, and FIG.
The figure is a perspective view of the image carrier holding member, FIG. 4 is a front view of the image carrier holding member, and FIG.
6 is a configuration diagram of the control member, FIG. 7 is a diagram showing the engagement member and the raised latch disengaged, and FIG. Figure 8 is a diagram showing the movement state of the guide plate as the opening member opens and closes, Figure 9 is a diagram showing the relationship between the amount of movement of the roller and the amount of opening and closing of the opening and closing member.
0 is a block diagram of the jam state detection means, FIG. 11 is a diagram showing a mode in which a protrusion is formed at the other end of the first storage member, FIG. 11a is a top view thereof, and FIG.
Figure b is a side view thereof. 1... Copying machine (image forming device), 1a... Main body, 10... Sensor (jam state detection means), 21
... Endless belt (image carrier), 23 ... Transfer charger (transfer device), 51 ... First storage member,
51a, 53b... one end (opening/closing member side end),
53...Second storage member, 54...Belt magazine (image carrier holding member), 58, 61...Claw (locking means), 59...Wire member (control member), 6
0... Solenoid (control member), 63, 65...
Raised latch (control member), 67...Opening/closing member, 6
8...Guide plate, 69...Controller (jam state detection means).

Claims

[Scope of utility model registration request]

The image forming apparatus is configured to release a transfer paper jam by separating the transfer device from the image carrier, and is provided in the main body of the image forming apparatus having an opening/closing member and extending in a predetermined direction from the opening/closing member side. an image carrier, a transfer device provided below the image carrier along the image carrier and forming a transfer paper conveyance path between the image carrier and the image carrier, and a first storage for containing the image carrier. It accommodates the transfer unit and the transfer device and is attached to the lower part of the first storage unit via the transfer paper conveyance path, and is rotatable in the vertical direction with respect to the first storage unit using the side end in a predetermined direction of the image carrier as a fulcrum. an image carrier holding member that is detachable from the image forming apparatus main body; and an opening/closing member;
A guide plate that slides into contact with the opening/closing member side end of the second storage section and rotates the second storage member in the vertical direction as the opening/closing member opens and closes, and a guide plate that slides on the opening/closing member side end of the first and second storage members. A lock means is provided, and has an engagement position for engaging the opening/closing member side end of the second storage member with the first storage member, and a release position for releasing the engagement, and a lock means for preventing transfer paper from getting jammed in the transfer paper conveyance path. What is claimed is: 1. An image forming apparatus comprising: a jam state detecting means for detecting a jam state; and a control member for switching the lock means to a release position based on an output signal from the jam state detecting means.