JPS62255347A - Sheet discharge device - Google Patents

Abstract

PURPOSE:To discharge a sheet material onto a discharged sheet housing member without fail, by installing a controller operating a driver for a moving flapper. CONSTITUTION:When printing is over, a paper feeding motor 2 is rotated, rotating a paper discharge roller 8, thus paper discharging is started. The paper feeding motor 2 is further driven, fully discharging paper of a printing sample, and guides it into a paper discharge tray 23. At this time, a sequence controller 1 energizes a plunger 19 via a driver 20 by a stop signal out of the paper feeding motor 2, and when operation of the plunger 19 is performed more than one time, a flapper 11 operates up and down centering on a pin 11a. An air flow is made to easily flow into a space between the flapper 11 and recording paper 18, whereby this recording paper 18 is floated up partially or entirely from the flapper 11 and the paper discharge tray 23 so that its friction is suddenly reduced, thus the recording paper is surely dropped up to a lower part of the paper discharge tray 23.

Description

[Detailed Description of the Invention] [Object of the Invention] "Industrial Application Field" The present invention relates to a method of obtaining an image on the recording medium by moving the recording medium in the vertical direction and scanning the recording device in the horizontal direction. The present invention relates to a sheet ejecting device of a recording apparatus, and generally relates to a sheet ejecting device of a device from which a sheet carrying an image is ejected.

"Problems to be Solved by the Prior Art and the Invention" Conventionally, for example, after printing is completed, a recording device stores the print sample on a paper discharge tray of a storage member that goes down in the direction in which the print sample is discharged outside the device. Discharge. In general, this method relies only on the force of the print sample made of light paper as a sheet material to slide down the slope on the paper output tray due to its own weight, so the print sample may not reach the desired position due to electrostatic force generated within the device. There was a drawback.

SUMMARY OF THE INVENTION An object of the present invention is to eliminate the drawbacks of the conventional sheet discharging apparatus described above and to provide a sheet discharging apparatus that reliably discharges sheet material onto a discharging sheet storage member.

[Structure of the invention]

"Means for Solving the Problems" The present invention provides a method for discharging sheet materials disposed in a device configured to perform copying, recording, reading, etc. so as to descend in the direction in which the sheet materials are discharged. A sheet discharging device having a storage member, further comprising a movable flapper between the storage member for the sheet material to be discharged and the sheet material discharge section, and a drive device for the flapper and a control device for operating the drive device. This is a sheet ejecting device.

"Operation" By displacing the movable flapper, air flows between the discharged sheet material and the movable flapper or the storage member for the discharged sheet material, and the sheet material surely slides to the lower end of the storage member. drop down.

"Example" An example of the present invention will be described using FIG. 1, FIG. 2, and FIG. 3. In FIG. 1, reference numeral 1 denotes a sequence controller that controls the sequence of this system and constitutes the main part of the control device. Reference numeral 2 denotes a paper feed motor (a slapping motor is used in this embodiment) that serves as the power for feeding the recording paper, and 6 indicates a paper feed motor driver that drives the paper feed motor 2 in response to a signal from the sequence controller 1. Reference numerals 4, 7, and 8 denote a paper feed roller, a paper feed roller, and a paper discharge roller of a sheet material discharge section, which are each rotated by receiving power from the paper feed motor 2 through a belt transmission device.

Here, a clutch 5 is connected to the paper feed roller 4.
Driver 6 is activated by the signal from sequence controller 1.
The clutch 5 and paper feed roller 4 can be connected and disconnected via the clutch 5 and the paper feed roller 4. Further, the paper feed roller 7 and the paper discharge roller 8 are constantly rotating when the paper feed motor 2 rotates.

Reference numeral 16 denotes a recording head, which is mounted on the carriage 12 and reciprocated in the vertical direction by a scanning motor 14 controlled by the sequence controller 1 via a scanning motor driver 15, and a mechanism (not shown) that converts the rotational motion of the scanning motor 14 into linear motion. At the same time, printing is performed on a sheet of recording paper 18 that is fed in front of the recording head 13 by the paper feed roller 4 in accordance with the image signal sent to the head 13. In this embodiment, the recording head 16 is a multi-ink jet head having a plurality of nozzles, and is capable of printing with a width of approximately 8IIK in one scan.

? is a photo-interrupter type paper ejection sensor, and the shutter 10
The shutter 1 opens and closes the optical path to send signals to the sequence controller 1, and as shown in FIG.
When one end 10a of 0 is pressed, the other end 10b moves out of the optical path of the paper ejection sensor 9 and outputs a high level (1) signal, indicating that the recording paper 1B has not reached the paper ejection sensor 9, or that the recording paper 18 has not reached the paper ejection sensor 9. When the paper passes through the paper discharge sensor 9, the other end 10b of the shutter 10 cuts off the optical path of the paper discharge sensor 9 and outputs a low level (b) signal.

Reference numeral 11 is a plate-shaped flapper which is pivotally attached to the fixing point by pins 11 and 11, and has a root side on the lower side through which the recording paper 18 printed in the immediate vicinity of the paper ejection roller 8 passes, and the other end when it is not in operation. It is located slightly above the entrance of the paper discharge tray 23.

Reference numeral 19 denotes a plunger equipped with a return spring 22, one end of which is pivotally connected to a movable rod 19a of the plunger 19, and the other end of which is connected near the paper discharge roller 8 through a connecting rod 21 which is pivotally connected to the middle of the flapper 11. It is connected to a flapper 11 which is pivotally mounted at a fixed point by a pin 11a. The plunger 19 is driven by a driver 20 in response to an on/off signal from the sequence controller 1. That is, when a high level (1) ON signal is output from the sequence controller 1, the movable rod 19a of the plunger 19 is driven by the driver 20.
is pulled in against the return spring 22, and the flapper 11 rotates counterclockwise around the pin 11& via the connecting rod 21, and comes to the position shown by the dotted line in FIG. Conversely, when a low level (0) off signal is output from the sequence controller 1, the plunger 19 is deenergized, and the return spring 22 inserted into the movable rod 19a of the plunger urges the movable rod j9a of the plunger in the forward direction. As a result, the movable rod 19a of the plunger moves forward and rotates the flapper 11 clockwise around the pin 111 via the connecting rod 21 to return it to its original position.

Reference numeral 23 denotes a paper discharge tray which is a storage member for the printed recording paper 18 to be discharged, and the flapper 11 is disposed between the paper discharge tray 26 and the paper discharge roller 8.

Next, the sequence will be explained using the flowchart shown in FIG. First, in step 1, when a detection means (not shown) detects that the recording paper 18 has come in front of the paper feed roller 4,
After connecting the clutch 5, the paper feed motor 2 is energized to feed the recording paper 18 by a predetermined number of pulses, and after confirming that the recording paper 18 has reached the paper feed roller 7, the paper feed motor 2 is turned on.
The power is cut off and the clutch 5 is disengaged.

Next, in step 2, the scanning motor 14 is started to start printing on the recording paper 18, and when one scan is completed, the carriage 12
At the same time, move the recording paper 18 one step (approximately 8
mx ) at a time, and repeat this process to form a picture book. As printing progresses, the recording paper 18 pushes the shutter 10 as shown in FIG.
) signal is output, and printing ends when the printer continues further.

When the paper ejection is completed, the paper ejection sensor 9 outputs a low level (0) signal.

In step 3, when printing is completed, the paper feed motor 2 rotates based on a printing end detection means (not shown), rotates the paper ejection roller 8, and starts ejecting the paper, and the sequence controller 1 controls the paper ejection sensor 9. The signal output level changes from (1) to (0)
After seeing the change, move on to step 4.

In step 4, the paper feed motor 2 is further driven by a predetermined number of pulses to completely eject the printed sample and transfer it to the paper ejection tray.
5J leads. At this time, the sequence controller 1 energizes the plunger 19 via the driver 2G in response to the stop signal of the paper feed motor 2, and when the plunger 19 is operated one or more times, the flapper 11 moves up and down around the pin 11a. , an air flow easily flows between the flapper 11 and the recording paper 18, and the recording paper 18 is partially or completely lifted from the flapper 11 and the paper ejection tray 23, so that the friction is rapidly reduced and the lower part of the paper ejection tray 23 is lifted. In the embodiment, the flapper 11 is supported by a hinge, but other support methods may be used as long as the movement of the paper discharge guide moves the print sample in a direction transverse to the paper surface.

The present invention is not particularly limited to the recording device of the embodiment, but can also be applied to copying devices such as a reader/printer type.

Further, although a photointerrupter was used as the paper ejection sensor in the embodiment, there is no problem in using a reflective sensor, a microswitch, or the like. Further, although a stepping motor t- was used as the paper feed motor, a motor such as a DO motor may also be used without any problem. Although a plunger was roughly used to drive the paper ejection guide, there is no problem in using a combination of a motor, pulley, and wire.

In the embodiment, the flapper is pivoted at one end, but it may be moved in parallel up and down, or it may be vibrated up and down.

The flapper of the embodiment also serves as a paper ejection guide between the paper ejection roller and the paper ejection tray. A flapper may be provided.

〔Effect of the invention〕

In the present invention, a movable flapper, a drive device for the flapper, and a control device for the drive device are provided between the discharge section and the storage member for the sheet material to be discharged, and the flapper is actuated after the sheet material is discharged. This has the advantage that the sheet material can reach the lower end of the sheet material storage member.

[Brief explanation of drawings]

FIG. 1 is a flow sheet of an embodiment of the present invention, FIG. 2 is a partially enlarged view of FIG. 1, and FIG. 3 is a flow chart showing a sequence. 11. Paper ejection guide.

Claims (1)

[Claims] 1. A sheet discharging device having a storage member for discharging sheet material disposed in a downward direction in the discharging direction of the sheet material, which is provided in a device configured to perform copying, recording, reading, etc. A sheet discharging device comprising a movable flapper between a storage member for sheet material to be discharged and a sheet material discharging section, a drive device for the flapper, and a control device for operating the drive device.