JPS63112348A - Recorder - Google Patents

Abstract

PURPOSE:To open a device without misoperation in a one-touch manner when a paper jam happens, and take action in the required jam handling at once, by attaching a conveying part to the device free of rotation, and energizing this conveying part to the closed side by a resilient device so as to cause a part of the conveying part to come into contact with an upper unit all the time. CONSTITUTION:A conveying part 22 is installed in the front of a paper refeeding part 12 free of opening or closing with the lower end pivotally attached by a pin 23, and this conveying part 22 is always energized to the closed side by a tension spring 24 installed between the conveying part and the paper refeeding part 12, making the roller part 22a installed in the upper end come into contact with a rail surface 1c of a recording part 1. Then, when a jam of recording paper 11 occurs in this recorder, if an upper unit 1a is lifted up and opened, a conveying passage 9 is exposed in sight so that the jammed paper is easily removable. And, the conveying part 22 is pushed and opened wide in the wake of rotation of the upper unit 1a, whereby the recorder is easily opened by only rotational operation of the unit 1a in a one-touch manner, thus the desired jam handling is performable.

Description

Detailed Description of the Invention (Industrial Application Field) The present invention provides a laser beam that can be easily opened and removed with one touch when recording paper jams. It relates to recording devices such as printers.

(Prior Art) In a small-sized recording device, in order to make it easier to remove the recording paper if it jams, the device is divided into two units, an upper unit and an upper unit, and the upper unit is lifted upward via a hinge. A method of opening the device (shell-type or alligator-type method) is adopted.

By the way, if you try to add a double-sided printing function or a multiplex printing unit to this type of recording device that is capable of single-sided printing, it will be necessary to send the ejected recording paper back to the image forming unit once the single-sided printing is completed. It is necessary to add a conveyance path, and in this case, a paper refeeding section for refeeding the recording paper to the image forming section is installed at the bottom of the single recording device (hereinafter referred to as the recording section), and the recording section Generally, a conveying section for receiving recording paper from a paper refeeding section and delivering it to the paper refeeding section is attached to the recording paper receiving side of the paper refeeding section so as to straddle the recording paper discharging side of the recording section.

(Problem to be Solved by the Invention) However, in the recording device configured as described above, when lifting the upper unit of the recording section during so-called jam processing to remove jammed recording paper from the device, Since the L unit cannot be lifted up because the transport section gets in the way, the user must first release the transport section and then lift the upper unit, which requires the user to perform two tedious operations. In addition, in order to prevent damage to the device, a mechanism must be provided to prevent erroneous operation in which the upper unit is lifted without releasing the transport section.

(Purpose) The present invention has been made in view of the above-mentioned conventional problems.The purpose of the present invention is to easily open the paper in one tap and without any erroneous operation to perform the necessary jam removal when the recording paper is jammed. The aim is to provide a recording device that can

(Summary of the Invention) In order to achieve the above object, the present invention includes a recording section including an image forming section, and a recording sheet discharged from the recording section on which a first image has been recorded. The recording paper re-feeding unit is configured to include a paper re-feeding unit for re-feeding the paper to the recording unit for re-feeding, and a transport unit for receiving the recording paper on which the first image has been recorded and sending it to the paper-refeeding unit. In the recording device, the recording unit is divided into an upper unit and a lower unit, and the upper unit is pivotally connected to be openable and closable, and the conveying unit is rotatably connected to the paper refeeding unit, and The present invention is characterized in that the conveyance section is biased toward the closing side by an elastic means so that a portion of the conveyance section is always in contact with a portion of the upper unit.

Therefore, when the recording paper jams, if you lift the upper unit of the recording section and open it, the conveyance section that is always in contact with it will open in conjunction with it, so there is no need to open the conveyance section in advance. The device can be opened easily and the required jam removal can be carried out in one click and without any erroneous operation.

(Example) An example of the present invention will be described below based on the accompanying drawings.

FIG. 1 is a vertical side view of a recording device according to the present invention, and FIG. 2 is a vertical side view showing the recording device in an open state.
1 is a recording section, and the recording section 1 is divided into an upper unit la and a lower unit 1b, and the upper unit la is connected to the lower unit ib via a bin 2 so as to be freely openable and closable. The upper unit la is normally closed as shown in FIG. 1, and its opening and closing are locked by a locking mechanism (not shown). The upper unit la is configured to include an image forming unit 3, a flapper 4, a conveyance path 5, etc.
An inverted sheet discharge tray 6 is provided on the upper surface thereof, and a straight sheet discharge tray lot constituting a second sheet discharge tray is provided on the curved surface (the left end surface in the figure). Further, the lower unit ib has a fixing roller 7.7. It is configured to include a paper feed separation roller 8, a conveyance path 9 extending through the water tray, etc., and an upper paper feed cassette 10 is removably attached to the rear (right end in the figure) of the unit lb. A plurality of recording sheets 11 . . . are stored in the upper paper feed cassette 10 .

On the other hand, a paper refeeding section 12 is provided at the bottom of the recording section 1, and the paper refeeding section 12 includes a flapper 15, forward/reverse rollers 16, 16, paper feed separation roller 17, and a linear reversal pocket 18. , a conveyance path 19 forming an S-shape and connecting the reversing pocket 18 and the conveyance path 9, an arc-shaped conveyance path 20 merging with the conveyance path 19, etc., and a lower stage feeder at the rear thereof. A paper cassette 21 is detachably installed, and a plurality of recording papers 11 are stored in the lower paper feeding cassette 21.

At the front of the paper refeeding section 12, a conveying section 22 is provided with its lower end pivotally connected by a bin 23 so as to be openable and closable. It is always biased toward the closing side (toward the recording section L and paper refeeding section 12 side) by a tension spring 24 stretched therebetween, and the roller section 22a provided at the upper end of the roller section 22a is attached to the rail of the recording section L as shown in the figure. Then 1c
is in contact with. The conveying section 22 is provided with an arcuate conveying path 25 that connects the conveying path 9 and the reversing pocket 18.

Next, to explain the recording operation of this recording apparatus, the recording paper 11 fed from the upper paper feed cassette lO or the lower paper feed cassette 21 by the paper feed separation roller 8 or 17 is transferred from the image forming unit 3 to the first image is recorded on its upper surface, and is conveyed along the conveyance path 9 in the direction of the arrow shown in the figure, and then transferred to the fixing roller 7.
．． 7, the first image is fixed. The image forming unit 3 is a unit that includes an image forming mechanism for electrophotographic recording, which is composed of a photosensitive drum, an optical recording section, a developer, a cleaner, etc. Here, the image forming unit 3 is connected to a fixing roller 7. The part at 7 will be referred to as an image forming section.

The recording paper 11 on which the first image has been fixed is guided by the flapper 4 and sent to the transport section 22 along the transport path 25, and then enters the paper refeed section 12 where it is moved by the forward/reverse rollers 16,
16 to the reversing blur)-18, where the direction is reversed by the reversing operation of the forward/reverse roller 16°16 and the switching operation of the flapper 15 from the solid line position to the dashed line position, and thereafter the S-shaped The recording medium is sent back to the conveyance path 9 through the conveyance path 19 forming the conveyance path 19, and enters the recording section l again. Then, the image forming unit records and fixes the image wS2 on the side opposite to the side on which the first image was recorded on the recording paper 11 that has been reversed and sent again. The sheets are guided by the flapper 4 and conveyed upward along the conveyance path 5, and are finally stacked one after another on the reversing sheet discharge tray 6.

In the case of single-sided print mode, the recording paper 11 is moved to the position indicated by the dotted line in the figure after the first image is recorded and fixed in the image forming section. The paper sheets are guided by the flapper 4 which has been switched to the direction shown in FIG.

If a jam occurs in the recording paper 11 in the Kimoto recording apparatus, the following measures are taken. That is, the operator first releases the locking mechanism (not shown) that locks the opening/closing of the upper unit la of the recording section l, and then opens the upper unit la.
When the upper unit a is lifted in the direction indicated by the arrow a in FIG. Since the transport path 9 provided in the section is exposed, the operator can easily remove the recording paper (jammed paper) 11 that has stopped in the transport path 9 section.

By the way, when the upper unit la of the recording section l rotates around the pin 2 as described above, the conveying section 22 whose roller portion 21a comes into contact with the rail surface 1c of the north unit la is shown in FIG. As shown, the pin 2 resists the tensile force of the tension spring 24.
3 in the same direction as the north unit la (in the direction of the arrow in FIG. 2) and is pushed open. In addition, at this time, the roller portion 22a of the conveyance section 22 is connected to the rail surface lc of the upper unit la.
slide on top.

In this way, the conveyance section 22 is pushed open following the rotation of the upper unit la of the recording section l, so the operator can easily open the device and remove the desired jam with just a one-touch rotation operation of the upper unit la. The processing can be carried out without any trouble, and the conveying section 22 does not interfere with the upper unit 1a and impede the rotation of the upper unit la, and damage to the conveying section 22, the upper unit 1a, etc. can be effectively prevented. Prevented.

In addition, there is no room for the erroneous operation that conventionally occurs, such as lifting the upper unit la without releasing the transport section 22, and therefore there is no need to provide a mechanism to prevent such erroneous operation.

After clearing the jam in this way, the operator pushes down the upper unit 1a to the closing side in the opposite direction, and the unit 1a moves clockwise in FIG. Following this rotation, the conveying section 22 whose roller portion 22a abuts against the rail surface 1c of the upper unit la also rotates in the same direction.
a and the conveyance section 22 are set in their original states shown in Figure i1,
The upper unit la is opened/closed and locked by a locking mechanism (not shown). In this way, the operator can easily set the device that was in the open state to the original state with a single touch, only by closing the upper unit 1a, that is, without having to operate the transport section 22, reducing the burden on the operator. significantly reduced.

Incidentally, in the above embodiments, the recording apparatus using electrophotographic recording in the image forming section has been mainly described.

The recording apparatus to which the present invention is applied also includes recording apparatuses having an image forming section that employs recording methods such as electrostatic recording, thermal recording, and thermal transfer recording. Furthermore, in the above embodiments, a recording device capable of single-sided printing with a paper refeeding unit for double-sided printing added is described, but the present invention is also applicable to a recording device equipped with a paper refeeding unit for multiplex printing. The present invention can also be applied to a recording device equipped with a paper refeeding unit that has two functions of double-sided printing and multiplex printing.

Furthermore, in the embodiment, the forward and reverse rotation rollers 16, 16
．． A reversing section including a flapper 15, a reversing pocket 18, etc. is provided in the paper refeeding section 12, or it may be provided in the conveying section 22, and a straight paper ejection tray 101 is also provided.
It is not limited to the recording section l, but may be attached to the conveying section 22. Furthermore, the roller section 2 of the conveyance section 22
2a has both the function of a receiving part when opening and closing the upper unit la of the recording section l, and the function of positioning with respect to the upper unit la, or the positioning with respect to the upper unit 1a is performed by a mechanism provided elsewhere. You may do so. Further, as the tension spring 24, although a coil spring is particularly shown as an example, it is of course possible to use various types of springs such as a return spring.

(Effects of the Invention) As is clear from the above description, according to the present invention, when the recording paper jams, if the upper unit of the recording section is lifted and opened, the conveyance section that is always in contact with the north unit 1~ is removed. Since the device is opened in conjunction with this, there is no need to open the conveying section in advance, and the device can be easily opened with a single touch to perform the required jam removal.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional side view of a recording apparatus according to the present invention, and FIG. 2 is a longitudinal sectional side view showing the recording apparatus in an open state. l...recording section, la...upper unit, lb-...lower unit, Ic-rail surface, 12-...paper refeeding section, 22
-... Conveyance section, 22a... Roller section, 24... Tension spring.

Claims (1)

[Claims] a recording section including an image forming section; and a paper refeeding section for refeeding the recording paper discharged from the recording section, on which the first image has been recorded, to the recording section for recording the second image. and a conveying section for receiving the recording paper on which the first image has been recorded and sending it to the paper refeeding section, and dividing the recording section into an upper unit and a lower unit. , in a recording device in which the upper unit is pivotally connected so as to be freely openable and closable,
The conveying section is rotatably attached to the paper refeeding section, and the conveying section is moved to the closed side by an elastic means so that a part of the conveying section is always in contact with a part of the upper unit. A recording device characterized in that it is energized.