JPS6265866A - Manual paper feeder in picture recording device - Google Patents

Abstract

PURPOSE:To obtain simple and accurate manual paper feeding by selectively setting a pair of upper and lower carrying members to a paper feeding state and a released state according to swinging movement of a manual paper feeding table and projecting and retracting a position regulator with respect to an opening of the manual paper feeding table in conjunction with the above operation. CONSTITUTION:A manual paper feeding device A is composed of a manual paper feeding table 16, a position regulator 17 for regulating a recording paper a to its normal position and carrier means 18. The carrier means 18 includes a pair of upper and lower carrying members 20, 21 which are rollers, and when the manual paper feeding table 16 is pressed down at an upstream portion in the paper feeding direction P against a spring 23, the respective carrying members 20, 21 are shifted to the paper feeding state X. The position regulator 17 has at the upper end thereof a paper regulating element (c) which is disposed to be projected and retracted with respect to an opening 24 according to the swinging movement of the manual paper feeding table 16. Thus constructed, the position regulating element (c) when projected, regulates the recording paper (a) to its normal position, and, when retracted, it allows feeding of the recording paper (a).

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a manual paper feed device in an image recording apparatus for feeding recording paper fed to a manual paper feed tray to a transfer section.

[Conventional technology]

As such a conventional manual paper feeding device, for example, Japanese Patent Laid-Open No. 59
There is one disclosed in Japanese Patent No. -34571.

As shown in FIGS. 7 and 8, when the recording paper a is manually fed between the pair of diagonal conveyance bodies 26 and 27 in the paper feed release state Y, the recording paper detection sensor starts to signal from the second day. is issued, the drive system of the image recording device is activated, and the transparent bodies 26, 27 are switched to the paper feed mode 6x, so that the recording paper a is fed obliquely by the conveyor 26, 27. It has become.

Then, the recording paper a is conveyed to the posture regulating tool 30 side while its side edge is pushed toward the width guide 29 side, and the leading edge of the recording paper a comes into contact with the posture regulating tool 30, so that the recording paper a is The leading edge of the paper a is regulated to a normal posture, and then the conveying body 26 and 27 are switched to the paper feed release state BY, and the posture regulating tool 30 is moved at a predetermined timing.
is switched to the deregulated state, and the conveyor 26.
27 is again switched to the paper feeding state X, and the recording paper a is fed to the transfer section via the pair of conveyance means 31.

(Problem to be Solved by the Invention) However, after the recording paper a is manually fed and the sensor 28 detects the recording paper a, not only the operation of the device drive system but also the posture adjustment of the recording paper a are left to the machine. Therefore, although the posture of the recording paper a can be regulated by diagonally feeding the recording paper a by the conveyors 26 and 27,
Sometimes the recording paper a continues to be fed diagonally with both corners of the leading edge of the recording paper in contact with the two width guides and the posture regulating tool 30, and this cannot be corrected manually. Since the drive system cannot be operated consciously, images may be recorded without properly correcting the posture, which has the drawback of easily causing recording errors and paper jams.

Furthermore, complicated control is required for frequently switching the conveying bodies 26 and 27 between the paper feeding state X and the paper feeding release state Y, and for switching the state of the posture regulating tool 30, resulting in a high cost.

The present invention has been made in view of the above circumstances, and
The purpose is to provide a low-cost manual paper feeder that can easily avoid recording errors and jams.

[Means for solving problems]

In order to achieve the above object, the manual paper feeding device in the image recording apparatus according to the present invention is provided with the manual paper feeding tray being provided swingably around a horizontal axis in a direction perpendicular to the paper feeding direction, and one of which is provided with a drive roller. One of a pair of upper and lower conveyors is attached to the manual paper feed tray, and the pair of conveyors can be freely switched between a paper feeding state and a paper feeding release state as the manual paper feed tray swings. In addition, the manual paper feed tray includes an attitude regulating portion that protrudes above the upper surface of the manual paper feed tray and adjusts the posture of the recording paper by bringing the leading edge of the recording paper into contact with the manual paper feed tray in the sheet feeding release state. With respect to the conveying body, the conveying body is configured to be relatively retracted below the upper surface of the manual paper feed table to allow paper feeding before switching to the paper feeding state as the conveying body swings. The feature is that it is placed on the downstream side in the paper feeding direction.

〔Example〕

Hereinafter, Mok Binming's embodiment will be explained based on the drawings. FIGS. 1 and 2 show a manual paper feeder A, and FIG. 3 shows an electrostatic photocopier as an example of an image recording device. The electrostatographic copying machine is of the so-called one-end reference type, which has only a manual paper feeding function and aligns the two adjacent sides of the document with the two adjacent sides of the contact glass. A photoreceptor 4 is horizontally mounted on a copying machine main body a which has a document holder 2 for contact glass 1 on the upper part, and a charging section 5, a developing section 6, a transfer section 7, and a recording paper separating section are arranged around the photoreceptor 4. 8. A manual paper feeding device A for disposing the cleaning sections 9 in the rotational direction R of the photoreceptor 4 in that order and for feeding the recording paper a to the transfer section 7 via the paper feeding means 1O.
, a paper ejection means 12 for ejecting the recording paper a after transfer and separation to the fixing device 11, and a pair of paper ejection rollers 14 for ejecting the recording paper a after the fixation to the tray 13. 3
An exposure device 15 with a movable optical system is disposed in the upper space.

Next, the specific structure of the manual paper feeder will be explained based on FIG. It consists of a regulating tool 17 and a conveyance means 18, and the manual paper feed table 16 has one end base 4!, as shown in FIG. A marker b... of the paper size width corresponding to the copy is displayed on the top surface, and the manual paper feed tray 16 is moved toward the front side of the manual paper feed table 16 via the horizontal horizontal axis 19 in the direction orthogonal to the paper feed direction P. It is pivotally attached to the copying machine main body 3 so as to be swingable.

The conveying means 18 is composed of a pair of upper and lower conveying bodies 20 and 21, each of which is a roller, and is provided near the downstream side in the sheet feeding direction P with respect to the horizontal pivot shaft 19 of the manual sheet feeding table 16. The upper conveyance body 20 is driven at a predetermined timing after the image recording apparatus drive system switch S- is turned on.

On the other hand, the lower conveyor 21 is freely rotatably attached to the manual paper feed tray 16 in a state in which it is slightly movable in the swinging direction of the manual sheet feed tray 16, and the lower conveyor 21 is connected to the upper conveyor 20. A coil spring 22 that urges the paper sheet 22 toward the side is fixed to the manual paper feed table 16.

Also, the paper feeding direction P with respect to the manual paper feeding table 16 is
The upper and lower conveyors 20 and 21 are provided on the lower surface of the upstream side of the
A spring 23 is provided that lifts and biases the lower surface portion upwardly so as to separate the
3 by pushing down the upstream portion of the manual paper feed tray 16 in the paper feed direction P, thereby removing the pair of conveyors 20 and 21.
to the paper feeding state X, and by releasing the push-down, the pair of conveying bodies 20 and 21 to the paper feeding state By,
Each of these can be switched artificially.

Then, in the middle of a series of operations for switching the conveyance body 20, 21 to the paper feeding state X, the switch SIA of the image recording apparatus drive system is turned on.

Now, the posture regulating tool I7 is made of a plate-like member, and the conveying body 2
An opening 24 is formed at a downstream side of 0.21 mm in the paper feeding direction P, and the plate-shaped posture regulating tool 17 is arranged at a predetermined position of this opening 24.

In detail, the conveyance body 20.21 receives the paper feed release letter MY.
, the posture regulating section C protrudes upward from the upper surface of the manual paper feed tray 16, and when the manual paper feed tray 16 swings, the conveyance body 20.21 is switched to the paper feed mode EX. The upper surface of the manual paper feed table 16 is arranged such that the upper surface of the manual paper feed tray 16 swings upwardly than the posture regulating section C, and the posture regulating section C is relatively retracted below the upper surface of the manual paper feed tray 16. Then, under the protrusion, the posture regulating tool 1
7.2. The recording paper a can be adjusted to its normal orientation by bringing the tip of the p-a into contact with it, and the paper can be fed by relatively retiring the orientation adjustment tool 17 below the upper surface of the manual paper feed table 16. This is to allow for.

That is, when the conveyor 20, 21 is in the paper feed release state Y, the recording paper a is fed onto the manual paper feed table 16, and the position of the recording paper a is aligned based on the marker d... At the same time, by bringing the leading edge of the recording paper a into contact with the posture regulating section C, the recording paper a can be fed onto the manual paper feed tray 16 with its normal posture adjusted. This allows the operator to adjust his/her posture accurately by feeling the operator's hands.

Next, under a conscious operation to cause image recording, that is, an operation similar to turning on an image recording switch, the manual feed tray 16 is pressed against the biasing force of the spring 23. The transport body 2 is caused to swing.
0.21 is switched to the paper feeding state When the outside is loaded, the drive system of the image recording device starts operating, and then the conveyance bodies 20 and 21 are switched to the paper feeding mode 6x, so that the image on the photoreceptor 4 and the recording paper a are registered. At the timing when the upper conveyor 2, which is the drive roller,
0 is driven, and as a result, the recording paper a in the normal position is supplied to the transfer section 7 via the paper feeding means 10.

After the recording paper a has been fed by the paper feeding means 10, by releasing the pressing operation on the manual paper feed tray 16, the manual paper feed tray 16 is moved to its initial position by the biasing force of the spring 23. At the same time, the posture regulating portion C relatively protrudes from the upper surface of the manual paper feed table 16, and the pair of conveyors 20 and 21 move to the paper feed release state MY.
The camera is then switched to prepare for the next image recording.

Incidentally, the spring 23 for returning to the posture may be omitted.

[Another example]

Different embodiments are shown in FIGS. 4 to 6, respectively. In addition, such fourth
In the drawings of FIGS. 6 to 6, the same components as those shown in FIG. 1 are denoted by the same reference numerals, and redundant explanation will be omitted.

Now, what is shown in FIG. 4 is provided with a flexible and deformable protrusion d at the downstream end of the manual paper feed tray 16 in the paper feed direction P, and when the manual paper feed tray 16 swings, the protrusion d body d
The positioning member 25 is provided with recesses e and e into which the manual paper feed table 1G is fitted and removed, so that the transport body 20.21
The switching position between paper feeding state X and paper feeding release state Y is made to appear fixedly, and what is shown in FIG. A solenoid S that is turned ON when a switch outside the drive system of the image recording apparatus is turned on is connected to the manual paper feed tray 16, and when the switch SW is turned on, the pair of conveyors 20 and 21 are placed in the paper feed state X. At the same time, the recording paper a is transferred to the transport bodies 20, 2.
Solenoid S becomes 0 when the time for passing through 1 has elapsed.
FFL, the transport bodies 20 and 21 are switched to paper feed release states S and Y.

What is shown in FIG.
is located on the downstream side of the pair of transport bodies 20 and 21 in the paper feeding direction P, and in this configuration, the upper transport body 20
is a rotatable roller and is attached to the manual paper feed tray 16, and the lower conveyor 21 is a drive roller that rotates at a predetermined timing.

The posture regulating tool 17 is arranged at the downstream end of the manual paper feed tray 16 in the paper feeding direction P, and the opening 24 of the manual paper feed tray 16 is omitted.

In any of the above configurations, the idling roller and the driving roller of the conveyor 20.21 may be interchanged vertically, and instead of the idling roller, this may be replaced with a friction pad or a driving roller. It may also be configured by the manual paper feed base section itself corresponding to the section.

In addition, the present invention targets a so-called one-end reference type copying machine in which two adjacent sides of a document are aligned with two adjacent sides of a contact glass.
Needless to say, the present invention can be applied to a so-called center-based copying type copying machine, which performs copying by aligning the widthwise center of the image, and other facsimile machines.

(Effects of the Invention) As explained above, the manual paper feeding device in the image recording apparatus of the present invention does not have a problem in which the leading edge of the recording paper is artificially brought into contact with the posture regulating tool to regulate the paper feeding posture of the recording paper. This makes it easy for the operator to accurately adjust the posture using the feel of the operator's hands. Moreover, after adjusting the posture as much as necessary, the manual feed tray can be consciously swung. In addition to switching the first fastest body to the paper feeding state, prior to this, the posture adjustment unit is relatively set to the manual paper feeding/feeding state.
Since it is retracted below the top surface of the table to allow paper feeding, it is possible to properly feed recording paper regulated in the normal position, thereby avoiding paper jams and recording errors due to paper feeding mistakes. In addition, it is possible to make the control means for changing the state of paper feeding and paper feeding release of the conveyance body and the posture adjustment device extremely simple, and overall, f
tW Although it is a brilliant improvement, it has become possible to provide a manual paper feeder at a low cost, which makes it easy to avoid recording errors and paper jams.

[Brief explanation of the drawing]

The drawings show embodiments of the present invention, in which Figure 1 is a longitudinal cross-sectional side view of the manual paper feeder with the conveyor in a paper feed release state, Figure 2 is a plan view of the manual paper feed tray, and Figure 3 is the electrostatic A schematic vertical side view of the entire photocopying machine, and FIGS. 4 to 6 are sectional views of a manual paper feeder showing different embodiments. 7 and 8 are a vertical side view and a plan view of a conventional manual paper feeder. 7... Transfer section, 16... Manual feed tray, 17...
Posture regulating tool, 19... Horizontal axis, 20.21... Conveying body, a... Recording paper, C... Posture regulating unit, P... Paper feeding direction, X... Paper feeding state , Y...Paper feeding is canceled. Patent Applicant: Sanda Kogyo Co., Ltd. Agent, Patent Attorney: Hideo Fujiki Figure 7 Figure 8 Procedural Amendment (Method) December 1985 Date of 1985 Patent Application No. 207256 2, Title of Invention In an image recording device Manual paper feeder 3, relationship with the case of the person making the amendment Patent applicant 1%'ga 1 (□ 2 representative Junki Mita 4, agent

Claims (1)

[Claims] In a manual paper feed device in an image recording apparatus for feeding recording paper fed to a manual paper feed tray to a transfer unit, the manual paper feed tray is swingable about a horizontal axis in a direction perpendicular to a paper feeding direction. and one of a pair of upper and lower conveyance bodies, one of which is a drive roller, is attached to the manual paper feed tray,
The pair of conveyance bodies is configured to be freely switchable between a paper feeding state and a paper feeding release state in accordance with the swinging of the manual paper feeding table, and
An attitude regulating section that protrudes above the top surface of the manual paper feed tray and adjusts the attitude of the recording paper by bringing the leading edge of the recording paper into contact with the paper feed release state is configured to move as the manual paper feed tray swings. on the downstream side in the paper feeding direction with respect to the conveying body so that the conveying body relatively retires below the top surface of the manual paper feed table to allow paper feeding before switching to the paper feeding state. 1. A manual paper feeder in an image recording apparatus, characterized in that the manual feeder is disposed in an image recording apparatus.