JPH0359959U

JPH0359959U -

Info

Publication number: JPH0359959U
Application number: JP12060489U
Authority: JP
Priority date: 1989-10-17
Filing date: 1989-10-17
Publication date: 1991-06-12

Description

[Brief explanation of the drawing]

第１図ａ乃至ｅは実施例の排紙トレイの縦断面
図、第２図及び第３図は他の実施例の排紙トレイ
の縦断面図、第４図は排紙トレイが装着されるレ
ーザプリンタの縦断面図、第５図ａは従来の排紙
トレイの縦断面図、第５図ｂはその斜視図、第６
図ａ，ｂは従来の底板昇降式排紙トレイの縦断面
図、第７図ａ，ｂは従来の底板傾斜式排紙トレイ
の縦断面図である。２……記録紙（シート）、１３……排紙ローラ
（排出部）、１４……排紙コロ（排出部）、１５
ａ……固定底板（積載部、奥側部分）、１５ａ_−
１……回動底板、１５ａ_−２……スライド底板、
１６ａ……可動底板（積載部、入口側部分）、１
７ａ……捩じりばね（付勢手段）、１７ｂ……コ
イルばね（付勢手段）。 Figures 1 a to e are longitudinal sectional views of the paper output tray of the embodiment, Figures 2 and 3 are longitudinal sectional views of the paper output tray of other embodiments, and Figure 4 shows the paper output tray installed. FIG. 5a is a longitudinal sectional view of a laser printer, FIG. 5a is a longitudinal sectional view of a conventional paper output tray, FIG. 5b is a perspective view thereof, and FIG.
FIGS. 7A and 7B are vertical cross-sectional views of a conventional paper ejection tray with an elevating bottom plate, and FIGS. 7A and 7B are longitudinal cross-sectional views of a conventional paper ejection tray with an inclined bottom plate. 2... Recording paper (sheet), 13... Paper ejection roller (ejection section), 14... Paper ejection roller (ejection section), 15
a...Fixed bottom plate (loading section, back part), 15a _{-
1} ...Rotating bottom plate, 15a _-2 ...Sliding bottom plate,
16a...Movable bottom plate (loading section, entrance side part), 1
7a...Torsion spring (biasing means), 17b...Coil spring (biasing means).

Claims

[Claims for Utility Model Registration] (1) In a paper output tray that receives a plurality of sheets ejected from a sheet ejection unit of an image forming apparatus that forms an image on the sheets and stacks them on a stacking unit, the stacking unit is a sheet is divided into a back part and an inlet part in the direction in which the liquid is discharged, the back part forming a part of the main body and being fixed, and the inlet part being fixed at an end on the back part side. It is rotatably attached to the main body and elastically supported from the main body by a biasing means, and the biasing means moves the stacked sheets from the top of the stacked sheets on the side of the discharge section to the discharge section. A paper ejection tray, wherein the entrance side portion is rotated in accordance with the amount of sheets loaded so that the height of the paper ejection tray is substantially constant. (2) Instead of the back part being fixed, the back part is rotatably attached to the main body at the end on the sheet receiving side. Output tray as described. (3) Instead of the back part being fixed, the back part is slidable relative to the main body in a direction opposite to the direction in which the sheets are discharged. 1.