JPS6180269A - Divided opening type copying machine - Google Patents

Abstract

PURPOSE:To remove easily jammed copying paper by disposing a temporarily accepting and reversing part for upsetting on an upper oscillating part and disposing a conveying direction change part and return part on a machine bed side. CONSTITUTION:The front end part of the upper oscillating part Y of a copying machine is oscillated upward around a pivotal shaft 49 and the upper oscillating part is inclined relative to the bed part X of the copying machine when the paper jam arises. The copying machine is then divided and opened along the conveying path of the copying paper. As a result, the forward and backward revolving rollers 30, 30' and temporarily accepting guide plates 31, 31' of the temporarily accepting and reversing part for upsetting E are mounted to the oscillating part Y. On the other hand, a conveying direction change plate 29 which is a conveying direction change part D and the guide rollers 35, guide plates 36, 36', guide rollers 39, 39', guide plates 40, 40', guide rollers 31, 41' and discharge roller 32 of the return part G are mounted to the part X and therefore the rollers 30, 30' and change plate 29 as well as the roller 35 are separated apart from each other and the copying paper jammed therebetween is easily removed.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a copying machine, and in particular, a copying machine is divided into two parts, a copying machine base part and a copying machine upward swinging part, and the copying machine upward swinging part is divided into two parts. A split-opening type copying machine in which the upper swing part of the copying machine is pivotally supported on the copying machine base, and the tip of the upper swinging part of the copying machine can be swung upward relative to the copying machine base to open the inside of the copying machine. It is related to.

[Prior art]

Conventionally, copy paper used to copy objects such as originals is copied only on one side.

Therefore, the need for double-sided copying has arisen in order to save copy paper, and also because when a large amount of copy paper is consumed, the amount of paper used is halved and the storage of copy paper becomes efficient. Ta.

For this reason, various double-sided copying devices have been developed.
Both copying machines incorporate mechanisms such as a paper feeding section, a transfer section, a fixing section, and an ejection section, as well as a reversing section for reversing the front and back of copy paper.

[Problem that the invention seeks to solve]

In a double-sided copying machine equipped with such various mechanisms, during a double-sided copying operation, it is inevitable that the copy paper will jam for various reasons. In particular, since the mechanism for reversing the copy paper is complicated, paper jams are likely to occur, and when this paper jam occurs, it is troublesome to remove the jammed paper from within the copying machine.

[Means for solving problems]

Although double-sided copying machines have such problems, split-open type copying machines have been developed in order to easily remove paper jams inside the copying machine.

This split-open type copying machine is divided into two parts, a copying machine base and a copying machine upper swinging part, and this copying machine upper swinging part is pivotally supported on the copying machine base. If a paper jam occurs, open the inside of the copying machine by swinging the tip of the upper swinging part of the copying machine upward and tilting it at a fixed angle with respect to the copying machine base. , which is designed to remove jammed copy paper.

Therefore, the present invention has been made by focusing on the above-mentioned problems and the structure of this split-open type copying machine.
And, on this copying machine machine base part X, said copying machine machine base part X
In a split open type copying machine, the copying machine includes an upper swinging section Y that is pivotably supported upwardly relative to a paper feed section A, a transfer section B, a fixing section C, and a fixing section. a conveying direction switching section for switching the subsequent conveying direction; a reversing temporary receiving and reversing section E for temporarily accepting the copy paper fed from the conveying direction switching section and then reversing it; and the conveying direction switching section. a discharge section F that discharges the copy paper fed from the conveyance direction switching section to the outside of the copying machine; a return section G that returns the copy paper fed from the conveyance direction switching section toward the paper feed section A; a paper refeeding section H that refeeds the copy paper sent by the return section G into a conveyance path on the downstream side in the conveyance direction of the paper feed section A; The copy paper conveyance path up to the switching section is formed along the dividing plane between the copying machine machine stand section X and the copying machine upper swinging section Y, and is formed along the dividing plane between the copying machine table section X and the copying machine upper swinging section Y, E is arranged on the upper swinging part Y side of the copying machine, whereas the transport direction switching part and the return part G are arranged on the side X of the copying machine base part. It is an object of the present invention to solve the above-mentioned problems by providing a means for reading an open-type copying machine.

〔Example〕

DESCRIPTION OF THE PREFERRED EMBODIMENTS How the configuration of the present invention is actually implemented will be explained below with reference to the drawings, together with its operation.

FIG. 1 is a vertical cross-sectional view of a split-release type copying machine based on an embodiment of the present invention. The copying machine is divided into two parts: the lower copying machine stand X and the upper copying machine upper swinging part Y. Normally, the copying machine upper swinging part Y is connected to the copying machine stand X as shown in FIG. Although the copying machine is placed in a horizontal position, if a paper jam occurs in the copying machine, the tip of the copying machine upper swinging section Y swings upward about the pivot shaft 49, and the copying machine It can be tilted with respect to the stand X to open the interior of the copying machine.

As shown in FIG. 1, a paper feed cassette 1 that stores copy paper P is installed on the right end side of the copying machine table X. A paper feed roller 2 is provided to cause the fed copy paper to pass through a guide plate 3.
, 4.5, guide rollers 6.6', guide plates 7, 7', and guide rollers 8, 8'. This paper feed cassette 1, paper feed roller 2. The guide plates 3, 4 constitute a paper feed section of the copying machine, and the pair of guide rollers 6, 6'.

As shown in FIG.
As shown in the figure, they are respectively attached to the copying machine stand section X.

A photosensitive drum 9 whose entire circumferential surface is coated with a photosensitive layer (not shown) is rotatably mounted approximately at the center of the upper swinging section Y of the copying machine. The light projected onto the original is reflected by a reflecting mirror 16° and a movable reflecting mirror 17.18. Lens 20. The image of the document is projected onto the photosensitive layer via the movable reflecting mirror 19 to form an electrostatic latent image on the photosensitive layer.

Around the photosensitive drum 9, there is a charging corona discharger 11 that is activated in the rotational direction of the drum to sequentially charge the photosensitive layer, and visualizes the electrostatic latent image formed on the photosensitive layer into a toner image. A developing device 12, a transfer corona discharger 10 for transferring the toner image formed on the photosensitive layer onto copy paper, and a photosensitive drum 9.
Separating corona discharger 10' for separating copy paper from
, devices such as a cleaning device 13 for removing toner remaining on the photosensitive layer after transfer are arranged.

and photosensitive drum 9. A charging corona discharger 11, a developing device 12, and a cleaning device 13 are installed in the upper swinging section Y of the copying machine as shown in FIG.
, the separating corona discharger 10' are respectively attached to the copying machine stand X as shown in FIG. Separation corona discharger 1
0' and a charging corona discharger 11 constitute a transfer section B.

Reference numerals 21 and 22 denote a pair of belt rollers, and a belt 23 is stretched between the belt rollers 21 and 22 to convey the copy paper transferred from the photosensitive drum 9 to a fixing roller 25° 25' via a guide plate 24. . This pair of belt rollers 21,
22, belt 23, guide plate 24, fixing rollers 25, 25
' are both installed on the copying machine base X, and the fixing roller 2
5 and 25' constitute a fixing section C.

The copy paper heated and fixed by the fixing rollers 25, 25' passes through a guide plate 26, and then is transferred by guide rollers 27, 27' to a first rotating roller 30, 30' via a guide plate 28.
and a second guide path from the guide rollers 27, 27' directly to the discharge roller 32 and the discharge roller 30' which also serves as a forward and reverse rotating roller.

The approximately triangular conveyance direction switch is used to branch these two guide paths into a first guide path for copying the opposite side once one side has been fixed, and a second guide path for copying both sides. The conveying direction switching plate 29 is pivoted at its proximal end and can be rotated about a pivot shaft (not shown) in response to a command signal, and its distal end is pivoted as shown in FIG. When located between the forward and reverse rotating rollers 30 and 30', the copy paper advances toward the forward and reverse rotating rollers 30 and 3(j/).

Further, when the conveyance direction switching plate 29 is moved around the pivot shaft by a command signal and its tip is positioned between the ejection rollers 30' and 32 (not shown), the copy paper is moved to the ejection roller 30',
Proceed towards 32 and pass through the guide plate 33.33' to the
It is discharged into a saucer 34.

These forward and reverse rotating rollers 30, 30' are connected to the transport direction switching plate 29.
It rotates (hereinafter referred to as forward rotation) so as to send the copy paper conveyed between the and the guide plate 28 to the reversing temporary receiving guide plate 31, 31', and the forward and reverse rotation rollers 30, 30'
It is possible to rotate the copy paper held between the two so as to move backward toward the conveyance direction switching plate 29 (hereinafter referred to as "reverse rotation").

The guide roller 27, the forward/reverse rotation rollers 30, 30' and the reversing temporary receiving guides 31, 31' are attached to the upper swinging section Y of the copying machine as shown in FIG.
Conveyance direction switching plate 29, discharge roller 32, guide plate 33.3
3' are respectively attached to the copying machine stand X as shown in FIG.

The transport direction switching plate 29 constitutes a transport direction switching section, and the forward and reverse rotating rollers 30. '3'O' and temporary reversing guide plate 31.31' for reversing temporary receiving and reversing part E
The discharge roller 33 constitutes a discharge section.

Below this conveyance direction switching plate 29 is a guide roller 35.3.
7.37', 39.39', 41.41' Guide plates 36.36', 38°38' are provided between these guide rollers.
, 4.0 and 40' are provided, respectively.

These guide rollers 35, 37, 37", 39, 3
9′.

41.41', guide plate 36, 36', 38, 38
', 40゜40' are respectively attached to the copying machine stand X (after the first side of the copy paper has been copied, the paper is returned to the paper re-feeding unit for copying the back side). It constitutes the sending section G.

Reference numeral 42 denotes a copy paper width aligner for aligning the paper widths of the copy sheets conveyed from the return section G. The copy sheets whose widths have been equalized here are brought into contact with a stopper 44 by a conveyance roller 43, and their leading edges are aligned. 45°45' is stone, 'l'44
A paper feed roller that refeeds the copy paper that has come into contact with the guide plate 46, 46', and the guide roller 47.
, 47', guide plates 48 and 48', and are guided to the guide plate 5. The copy paper width aligner 42, the paper feed roller 43, the stopper Q44, the transport rollers 45, 45', the guide plate 46°46', the guide rollers 47, 47', the guide plate 48°48'
are attached to the copying machine stand X, and include paper feed rollers 45, 45' guide plates 46, 46', guide rollers 47,
47' and guide plates 48 and 48' constitute a paper refeeding section H.

To explain double-sided copying of copy paper using the split-open copying machine with the above configuration, first, as shown in FIG. Make paper.

The fed copy paper is transferred to the guide plates 3, 5 and the guide roller 6.
, 6', guide plates 7, 7', and guide rollers 8, 8' so as to be brought into close contact with the photosensitive layer of the photosensitive drum 9 in the transfer section B, and one side thereof is transferred.

The copy paper on which one side has been transferred is sent by a conveyor belt 23 via a guide plate 24 to a fixing roller 25.degree. 25' of a fixing section C, where it is fixed. The fixed copy paper passes through the guide plate 26 and between the guide plate 28 and the conveyance direction switching plate 29 by the guide rollers 27, 27', and is then transferred to the forward/reverse rotating rollers 30, 30.
'is sandwiched between. In this case, the leading end of the conveying direction switching plate 29 is positioned between the forward and reverse rotating rollers 30° and 30' as shown in FIG. 1 in response to the command signal. and is held between forward and reverse rotating rollers. These forward and reverse rotating rollers 30, 30'
When the leading edge of the copy paper is temporarily rotated in the forward direction, the leading edge of the copy paper is temporarily inserted into the receiving guide plate 31.
．． 31', and the rear end is still held between the forward and reverse rotation rollers 30, 30' at the latter stage, by rotating the forward and reverse rotation rollers 30, 30' in the reverse direction according to a command signal, one-sided copying is completed. The copy paper is passed between the guide plate 28 and the conveyance direction switching plate 29, and the copy paper is transferred to the guide roller 27 of the return section G.
Reverse towards 35.

The copy paper reversely advanced to the guide rollers 27, 35 is transferred to the guide plate 36, 36', the guide rollers 37, 37', the guide plate 38.
38', guide rollers 39, 39', guide plates 40, 40'
, guide rollers 41 and 41', and are conveyed to the copy paper width aligner 42. The copy paper whose width has been made uniform by the copy paper width aligner 42 is conveyed by a conveyance roller 43, and the copy paper is conveyed by a stone, +44
The tips of the two are brought into contact and aligned.

The copy paper with its leading edge aligned is fed to the paper feed roller 4 of the paper refeed section H.
5, 45', guide plates 46, 4.6', guide rollers 47, 47', guide plate 48.48', guide plate 5, and guide roller 6.6'. The copy paper on which one side has been copied is fed to the refeeding section 45° 45', 46, 46', 47
．． While passing between 47' and 48.48', the paper is reversed and transported with the back side that has not yet been copied facing up. This inverted copy sheet is guided from guide rollers 6, 6' to guide plates 7.7' and conveyed to guide rollers 8, 8'.

The copy paper conveyed by the guide rollers 8, 8' is fed so as to come into close contact with the photosensitive layer of the photosensitive drum 9 facing the transfer corona discharger 10, so that the back surface which has not been copied yet is transferred. After the transfer is completed, the copy paper is sent from the sending bell 1-23) to the fixing rollers 25, 25' via the guide plate 24 and fixed thereon.

The fused copy paper passes through a guide plate 26 and then passes through a guide roller 27.
, 27', and is discharged to the copy receiver 34 via the guide plate 33, 33' by the discharge roller 30'32. In this way, double-sided copying can be completed. In this case, the conveyance direction switching plate 29 is rotated about the pivot 11 by a command signal in advance, and its tip is located between the discharge rollers 30' and 32 (!:) from the position shown in FIG. (not shown), the copy paper fed out from the guide rollers 27, 27' passes over the conveyance direction switching plate 29 and is fed into the copy tray 34.

However, during such double-sided copying work, paper jams occur for various reasons. Particularly in the vicinity of the conveyance direction switching section and the reversing temporary receiving and reversing section E, the mechanism is complicated, so paper jams are likely to occur. Before a paper jam occurs in such a place, as shown in FIG. By tilting and tilting with respect to the copying machine stand X, the copying machine is divided and opened along the copy paper conveyance path.

As a result, as shown in FIG. 2, the forward/reverse rotation rollers 30, 30' of the temporary reversal receiving and reversing section E and the temporary reversing receiving guide plates 31, 31' are attached to the copying machine-side swinging section Y. On the other hand, there is a conveyance direction switching plate 29 which is a conveyance direction switching section, a guide roller 35 of the return section, a guide plate 36, 36', a guide roller 37, 37', a guide plate 38, 38', a guide roller 3.
9, 39', guide plate 40, 40', guide roller 41,
41' and the ejection roller 32 are mounted on the copying machine stand X, so the forward/reverse rotation rollers 30, 30', the conveyance direction switching plate 29, and the guide roller 35 are separated with an interval. Therefore, any copy paper stuck between the two can be easily removed.

The switching plate 50 is attached to the upper swinging portion Y' of the copying machine, and the conveyance direction switching plate 5
0' are respectively arranged on the base of the copying machine. By rotating the pair of transport direction switching plates 50 and 50' in relation to each other, the copy paper fed from the fixing section C' is transferred to the reversing temporary receiving and reversing section E', the ejecting section F', and the returning section G'. Copy sheets sent to one of the selected paths and reversed from the reversing temporary receiving and reversing section E' are sent to the return section G'.

Further, the copying machine-F real part Y/, the copying machine base part X'
The copy paper fixed from the fixing section C' is conveyed by the conveyance direction switching plates 50 and 50' through the temporary receiving and reversing section E' for reversal and the return section G', respectively, and then again from the paper refeeding section (not shown). Paper is fed. In this case, so-called composite copying is also possible, in which the copy paper is not reversed and the same side that has been copied once is copied with a different original.

[Effects of the present invention]

According to the present invention, there is provided a copying machine base, a copying machine upward swinging unit which is pivotally supported on the copying machine base so as to be able to freely move upward relative to the copying machine base; A copying machine configured with
Since a double-sided copying mechanism such as a return section is incorporated, even if a paper jam occurs during double-sided copying, the upper swinging section of the copying machine can be tilted upward relative to the copying machine base, allowing the copying machine to function easily. The interior can be divided into two parts and opened, and as a result, jammed copy paper can be quickly removed, making copying work more efficient.

Furthermore, while the reversing temporary receiving and reversing section is disposed on the upper swinging section side of the copying machine, the conveyance direction switching section and the return section are disposed on the copying machine stand side. When the copying machine is opened by swinging the machine-to-side swinging section upward with respect to the copying machine base and tilting it, the temporary reversing receiving and reversing section, the transport direction switching section, and the return section are separated. There is an advantage that copy paper stuck in between can be easily removed.

[Brief explanation of drawings]

FIG. 1 is a vertical sectional view of a split-open type copying machine showing a normal operating state according to an embodiment of the present invention, and FIG. 2 shows the inside of the copying machine when the L-side swinging section of the copying machine is swung upward. FIG. 3 is a vertical cross-sectional view of the main parts of the split-open copying machine shown in FIG. 1 in an open state;
The figure is a conceptual front view of the main parts of a split-open type copying machine based on another embodiment of the present invention. A: Paper feeding section, B: Transfer section, C: Fixing section, D: Conveying direction switching section, E: For reversing - waiting and receiving reversing part, F...
... Discharge section, G ... Return section, X ... Copy machine stand section, Y ... Copy machine upward swinging section.

Claims (2)

[Claims] (1) Consisting of a copying machine base X and a copying machine upper swinging part Y that is pivotally supported on the copying machine base X so as to be able to swing upwardly with respect to the copying machine base X. In the split-release type copying machine, there are a paper feed section A, a transfer section B, a fixing section C, and a conveyance direction switching section D that switches the conveyance direction after fixing processing.
and a reversing temporary receiving and reversing section E that temporarily accepts the copy paper fed from the conveyance direction switching section D and then moves it backward; a discharge section F that discharges the copy paper sent from the transport direction switching section D to the paper feed section A, a return section G that returns the copy paper sent by the return section G to the paper feed section a paper refeeding section H that refeeds paper into a conveyance path on the downstream side in the conveyance direction of the paper feed section A, and conveys copy paper from the paper feed section A to the conveyance direction switching section D; The path is formed along a dividing plane between the copying machine table part X and the copying machine upper swinging part Y, and the reversing temporary receiving and reversing part E is on the copying machine upper swinging part Y side. While it is located in
A split-open type copying machine, characterized in that the conveyance direction switching section D and the return section G are disposed on the copying machine stand section X side. (2) In the conveyance direction switching section D', a conveyance direction switching plate 50 pivotally supported on the upper swinging section Y' side of the copying machine;
A conveyance direction switching plate 5 pivotally supported on the copying machine table section X' side.
0' is arranged, and the pair of conveyance direction switching plates 50, 5
0', the copy paper sent from the fixing section C' is transferred to a selected one of the reversing temporary receiving and reversing section E', the ejecting section F' and the returning section G'. Each conveying path is configured such that the copy paper sent to one path and reversed from the reversing temporary receiving and reversing section E' is sent to the return path G'. 1) The split-open type copying machine described above.