JPH0126983B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a recording paper ejection device that allows jobs to be sorted using a single-bin ejection tray without increasing costs.

2. Description of the Related Art As a conventional recording paper ejecting device, there is, for example, a copying machine, a printer, etc., in which sheets copied or printed are ejected by an ejection roll and stacked on an ejection tray.

However, with conventional recording paper ejection devices,
With the exception of sorter-type output trays, single-bin type output trays are the standard type, which causes operators to feel troublesome as they have to turn over and sort the output sheets one by one. In addition, if an attempt is made to increase the number of bins by adding another unit to sort jobs, there is a risk that costs will increase.

On the other hand, as in the invention disclosed in Japanese Patent Publication No. 55-39515, printing paper is sorted by having a paper ejection roller divided into two parts and applying different rotational speeds to each paper ejection roller using a clutch mechanism. Although a device has been proposed, since the paper ejection roller has a certain width, when different rotational speeds are applied to the ejected paper, the paper may be subjected to twisting force and be damaged.

The present invention has been made in view of the above, and in order to sort jobs on a single-bin output tray without increasing costs, and to perform the sorting safely without causing damage to the output paper, it is possible to In a recording paper ejection device that includes an ejection roll that ejects recording paper having records such as printed images, and an ejection tray that receives the ejected recording paper, a shaft and a job are arranged in parallel to the ejection roll. and a clutch that transmits the rotation of the ejecting roll to the shaft when sorting is commanded, and the shaft is provided with a protruding piece near the end for pushing out the recording paper, and the clutch is configured to adjust the ejection posture of the ejected paper. The present invention provides a recording paper ejecting device which sorts jobs based on the number of jobs.

According to the configuration of the invention, the shaft arranged parallel to the discharge roll is actuated by a predetermined command so as to rotate in the opposite direction to the discharge roll via the clutch. Therefore, by utilizing this rotation in the opposite direction, the ends of the ejected recording paper are pushed out by the protruding piece attached to the shaft, and the state in which the recording paper is stored in the tray is distinguished from the normal ejection position. Become.

The recording paper ejecting device according to the present invention will be explained in detail below.

1A and 1B show an embodiment of the present invention, in which a paper discharge portion of a copying machine main body 1 includes a drive discharge roll 2 having a drive gear 2a, and a driven gear 3a through which the driving force of the drive gear 2a is transferred. clutch 3b that controls the transmission of
(The driven gear 3a has a smaller number of gears than the driving gear 2a, and therefore has a higher rotational speed), a shaft 3 that supports the driven gear 3a, an idle discharge roll 4 that is idly supported by the shaft 3, and A discharge finger 5 fixedly located off to one side of the discharge path and a discharge sensor 6 for detecting paper discharge are provided. A discharge tray 7 is provided on the outside of the copying machine main body 1, and a fixing section comprising a heating roll 8 and a pressure roll 9 is provided in front of the discharge rolls 2 and 4. The ejection signal from the ejection sensor 6 is input to a control unit (provided in the copying machine body 1) consisting of a microcomputer having an input/output interface, ROM, RAM, and CPU. It is controlled to turn on and off (the drive circuit is omitted in the illustration).

The operation of the above configuration will be described below with reference to FIGS. 2A and 2B.

In normal copying operations, the clutch 3b is in the off state, and the copy paper 11, which has been fixed by the heating roll 8 and the pressure roll 9, is transferred to the ejection tray 7 by the drive ejection roll 2 and the idle ejection roll 4. is discharged upwards.

On the other hand, when the operator commands job classification by operating keys on the console, the control unit 10 processes the job classification signal input from the console (the CPU processes it based on the program stored in the ROM, and records the status in the RAM). When the copy paper 11 on which the fixing has been completed passes the ejection sensor 6 and an ejection signal is output, the control section 10 that has received the ejection signal outputs a control signal to turn on the clutch 3b. When the clutch 3b is turned on, the driving force of the drive gear 2a is transmitted to the driven gear 3a, the shaft 3 is driven, and the ejection finger 5 pushes out one side of the trailing edge of the copy paper 11 that has just passed the ejection sensor 6. (Due to the ratio, the rotational speed of the discharge finger 5 is greater than the rotational speed of the discharge roll 2, so that a pushing effect occurs). When one side of the trailing edge of the copy paper is pushed, as shown in FIG. 2A, the copy paper assumes an inclined ejection position 11a, making it easy to distinguish it from the copy paper 11 in the normal operation. FIG. 2B shows that there are two sheets of copy paper 11a for job classification in the stacked copy paper 11, so that it can be divided into three types of jobs.

In the job sorting operation, it may be controlled to take the job sorting attitude on the first page or the last page of paper in one job, but
It is also possible to control the paper in the entire job so that the job is divided into sections.

As explained above, according to the recording paper ejecting device according to the present invention, the recording paper is provided with an ejection roll that ejects the recording paper having a record such as a copy image or a print image, and an ejection tray that receives the ejected recording paper. The ejecting device includes a shaft arranged in parallel to the ejecting roll, and a clutch that transmits rotation of the ejecting roll to the shaft when job classification is commanded,
The shaft is provided with a protruding piece near the end for pushing out the recording paper, and the jobs are sorted based on the ejection posture of the ejected paper, so jobs can be sorted using a single-bin ejection tray without increasing costs. It can be performed.

Moreover, by employing a protruding piece (ejection finger), it is possible to safely sort the ejected sheets without damaging them. Furthermore, since a simple mechanism is used in which the shaft rotates in the opposite direction to the rotation of the discharge roll, reliable and safe sorting operations can be achieved.

[Brief explanation of drawings]

FIG. 1A is an explanatory diagram showing one embodiment of the present invention. FIG. 1B is an explanatory diagram showing the discharge section in the embodiment. FIGS. 2A and 2B show how copy paper is discharged in the present invention, where A is a plan view and B is a front view. Explanation of symbols: 1... Copying machine main body, 2... Drive discharge roll, 2a... Drive gear, 3... Shaft, 3a... Driven gear, 3b... Clutch, 4...
...Idle discharge roll, 5...Discharge finger, 6...
...Discharge sensor, 7...Discharge tray, 8...Heating roll, 9...Pressure roll, 10...Control unit.

Claims (1)

[Scope of Claims] 1. A recording device comprising: an ejection roll (driving ejection roll and idle ejection roll) that ejects a recording paper having a record such as a copy image or a print image; and an ejection tray that receives the ejected recording paper. The paper ejecting device includes a shaft that pivotally supports the idle ejecting roll, a clutch that transmits rotation of the driving ejecting roll to the shaft when job classification is commanded, and a clutch that is pivotally supported on one end of the shaft. . A recording paper discharge device, characterized in that a discharge finger having a length longer than a diameter of a floating discharge roller is attached to push out one side of the trailing edge of the recording paper.