JPH0431163U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案の１実施例による下側ガイド板
の形状と定着器筐体への取付状態を示す斜視図、
第２図ａは本考案の１実施例による普通紙ガイド
時のガイド溝と段付ピンとの係合位置を示す図、
第２図ｂは特殊紙ガイド時の同上の係合位置を示
す図、第３図は本考案の１実施例が含まれる電子
写真画像形成装置に配設される定着器とガイド板
および搬送部との構成を示す概略図。 １……電子写真画像形成装置、２……感光体、
３……記録紙、４……搬送部、５……搬送面、６
……上側ガイド板、７……下側ガイド板、７ａ…
…ガイド面、７ｂ……取付面、７ｃ……取手、８
……ガイド溝、８ａ……普通紙用ガイド溝、８ｂ
……特殊紙用ガイド溝、９……段付ピン、１０…
…定着器、１１……定着器筐体、１２，１３……
定着ローラ。 FIG. 1 is a perspective view showing the shape of the lower guide plate and the state of attachment to the fuser housing according to one embodiment of the present invention;
FIG. 2a is a diagram showing the engagement position of the guide groove and stepped pin when guiding plain paper according to an embodiment of the present invention;
Fig. 2b shows the engagement position of the above when guiding special paper, and Fig. 3 shows a fixing device, a guide plate, and a conveyance unit disposed in an electrophotographic image forming apparatus including an embodiment of the present invention. Schematic diagram showing the configuration of. 1... Electrophotographic image forming device, 2... Photoreceptor,
3... Recording paper, 4... Conveying section, 5... Conveying surface, 6
...Upper guide plate, 7...Lower guide plate, 7a...
...Guide surface, 7b...Mounting surface, 7c...Handle, 8
...Guide groove, 8a...Guide groove for plain paper, 8b
...Special paper guide groove, 9...Stepped pin, 10...
...Fuser, 11...Fuser housing, 12, 13...
Fuser roller.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 記録用紙にトナー画像を転写したのち搬送部に
よつて搬送される該記録紙を定着する電子写真画
像形成装置の定着器において、前記定着器の入口
をはさんで上下に配設した一対のガイド板の下側
ガイド板の一部にカム状をなしたガイド溝を設け
、該ガイド溝に、本体フレームに固定した段付ピ
ンを嵌め合わせ該下側ガイド板の横方向スライド
によつて該下側ガイド板を上下方向に移動切替可
能に保持したことを特徴とする定着器入口ガイド
板の高さ切替機構。 In a fixing device of an electrophotographic image forming apparatus that transfers a toner image onto a recording paper and then fixes the recording paper that is conveyed by a conveying section, a pair of guides are arranged above and below across an entrance of the fixing device. A cam-shaped guide groove is provided in a part of the lower guide plate of the plate, and a stepped pin fixed to the main body frame is fitted into the guide groove, and the lower guide plate is slid laterally. A height switching mechanism for a fuser entrance guide plate, characterized in that a side guide plate is held so as to be movable and switchable in the vertical direction.