JPH04148754A - Conveying device for paper sheet or the like - Google Patents

Abstract

PURPOSE:To remove a jammed sheet or the like easily without damaging other sheets by employing control means which makes display means provided in instruction means in an area corresponding to an occurrence of jam visible. CONSTITUTION:When an occurrence of jam is informed with jam informing means, an operator recognizes display means which are in visible condition out of the instruction means 6 through 10 for a plural number of areas. This enables the operator to locate a place of the jam occurrence. Measures are taken according to the operation member shown with the display means and the jam handling procedure instructed with the instruction means 6 through 10. This enables the operator easily remove the jammed recording sheet.

Description

Detailed Description of the Invention [Field of Industrial Application] The present invention relates to a sheet conveying device, and more specifically, in a recording device such as a copying machine, a recording sheet fed from a feeding section is used to form an image. The present invention relates to a sheet conveying device that facilitates post-processing of jams that occur on the path from the sheet conveyor to the conveyor.

C. Prior Art 1 FIG. 9 shows the configuration of a conventional copying machine together with its sheet conveying device, where 101 is a sheet feeding section that holds and feeds recording sheets P in an accumulated state; 102; 103 is a feeding roller, and 103 is a pair of separation rollers. These rollers separate the upper sheets one by one from the sheet feeding section 101 and send them out until they come into contact with registration rollers 104. 105 is a photosensitive drum; photosensitive drum 1;
An electrostatic image is formed on 05 according to an image read from a document (not shown) by a document reading optical system 106.

Therefore, the recording sheet that has been guided to the position of the registration rollers 104 is now guided along the photosensitive drum 105 by the registration rollers 104 so that the leading edge of the electrostatic image formed above coincides with the initial transfer position on the sheet. sent out. The recording sheet on which the image has been transferred is sent to the fixing section 107 by the conveyor belt 106, where it is fixed by the fixing roller 10g, and then transferred to the output tray via the rollers 109, 110, 112, or 113. 114.

However, in the case of double-sided copying, etc., after fixing, the roller 109
The path from 115.116°11 is converted to roller 115.116°11.
7 and 11g, and is once discharged onto the double-sided tray 119 in a reversed state. Thereafter, the image is again guided to the registration rollers 104 via the conveyance rollers 120 and 121, and transferred to the back side in the same manner as described above. In the document reading optical system 106, 131 is a platen glass through which the document is guided, 132 is a light source that scans in the direction of arrow R and illuminates the document, such as a halogen lamp;
Mirrors 136, 13415 and 135 move in the same direction together with the lamp 132; 13713 and 13g are fixed mirrors for guiding the reflected light onto the photosensitive drum 105;
139 is a condensing lens.

In the recording sheet conveyance system of a copying machine configured in this manner, the recording sheet may become clogged in the middle due to conveyance failure due to various causes, resulting in a so-called jam. Therefore,
In such a case, it is necessary to remove the recording sheet that has become stuck in the conveyance system due to a jam. For example, in order to remove it, as shown in Figure 10, release the pressure of the contacting roller, or There are levers, push buttons, etc. for moving and operating some of the members involved. Here, 201
, 202.203.204.205.206 and 20
7 indicates each related member a, b, c, d, e, f
It is a lever or knob (hereinafter referred to as an operating member) that can be operated in the J5 and G directions.Thus, in the event of a jam, select and operate the member related to the jam among the above members to remove the jam. The recording sheet that is stored can be taken out of the machine.

For example, in this case, if a jam occurs at the fixing roller 1Gg, the jammed sheet can be pulled out to the downstream side by rotating the knob 207 in the direction of arrow g. In addition, in contrast to the conventional example described above, for example, an operation panel (not shown) attached to the outside of the copying machine or a place where the front door of the copying machine is opened divides the transport path into several sections as shown in Fig. 11. A display board 30G is provided to indicate the areas in which the jam has occurred, such as Φ to In some cases, explanatory notes indicating jam removal procedures in the area are attached to the display board.

[Problems to be Solved by the Invention] However, in jam removal in the conventional conveying device as described above, it is difficult for users who are unfamiliar with copying machines to operate it, and even if a display board etc. is provided to explain the operation, Even if the jam is actually occurring, it may be difficult to understand where the jam is occurring, or it may be difficult to find instructions on how to deal with the jam.

An object of the present invention is to solve such conventional problems, and to provide a sheet conveying device suitable for copying machines, etc., in which the user can clearly understand the location where a jam occurs and the procedure for handling the jam, and can easily take appropriate measures. Our goal is to provide the following.

[Means for Solving the Problems] In order to achieve the above object, the present invention provides a jam notification means that notifies jams due to poor conveyance of sheets on a conveyance path, and a jam notification means that is provided for each area of the conveyance path, and a jam notification means for each area of the conveyance path. A teaching means for teaching a jam processing procedure, a display means provided for each of the teaching means and for instructing an operating member to be operated for the corresponding jam processing, and a teaching means for a corresponding area according to the occurrence of the jam. and a control means for bringing a display means provided in the display means into a visible state, and by operating an operating member instructed by the display means in accordance with a jam removal procedure taught by the teaching means, it is possible to clear the jam. .

[Function] According to the present invention, when the user is notified of the occurrence of a jam by the jam notification means, the user can detect the occurrence of the jam by recognizing the display means of the revealed state among the plurality of area-specific teaching means. The location can be identified, and the recording sheet involved in the jam can be easily removed by carrying out the processing operation according to the jam processing procedure taught by the operating member and teaching means shown on the display means.

Furthermore, by providing a plurality of display members in association with the display means, each indicating the jam processing procedure with a number, the user can perform the corresponding processing operation according to the number, making the operation even easier. I can do it.

[Examples] Examples of the present invention will be described below in detail and specifically based on the drawings.

FIG. 1 shows an example in which the present invention is applied to an image forming apparatus for a copying machine. Here, the internal configuration of the copying machine main body is the same as that shown in FIGS. 9 and 10, and in FIG. 1, the front nIA
Also shown is a state in which the IB is opened left and right. Although not shown in Figure 1, the main body of the copying machine is equipped with a means for detecting a jam in the conveyance device, and an operation panel located outside the copying machine in a location that is easily visible to the user. When a paper jam occurs, a message is displayed on the display of the operation panel requesting that a paper jam occur and how to deal with it, such as "Please open the front door and remove the jammed paper." .

Furthermore, in FIG. 1, 2, 3, 4, and 5 are covers that cover the illustrated areas to protect or prevent danger, and 2A is a cover that is provided on cover 2 to make it easier to see the sheet removal operation. Also, numeral 6 is a teaching plate provided on the cover 2 and displays the operation procedure for the lever 201, and 7 is also provided on the cover 2 and is a teaching plate for displaying the operating procedure of the lever 201.
．． a teaching board on which the operating procedures of 204 and 206 are displayed;
Reference numeral 8 indicates a teaching plate on which operating procedures for the lever 202 are displayed; furthermore, numeral 9 is provided on the cover 3 and indicates a teaching plate for instructing the operation of the knob 202; IO is provided on the cover 4 and indicates the operation of the lever 205;
This is a teaching board that gives instructions on how to operate.

Each of these teaching boards 6 to 1O has an arrow display section 6A.
-IOA, an operation display section 6B-IOB, and a message section 6C-IOC are provided, and as in the example of the teaching board 10 shown in FIG. For example, by blinking, it is notified that a jam has occurred at a location related to the teaching board, and the user is prompted to follow the processing procedure. Incidentally, the reason why the display section 10A on the teaching board 1O blinks like this is because there is a jam between the separation roller 103 provided at the outlet of the feeding section and the conveyance roller 121A located above it, as shown in FIG. Since a jam detection means (not shown) is provided at this location, when the control section of the copying machine is notified of the occurrence of a jam as described later, the display section of the operation panel is first alerted. The occurrence of a paper jam is displayed with a message such as ``Please open the front door and remove the paper jam.'' and the display section 10 is displayed when the front doors IA and IB are open.
It is recognized that A is blinking. Thus, in this case, the user presses the lever 205 indicated by the arrow display section 10A.
(in this example, it is colored green) according to the instructions shown by the operation display section 10B, thereby making it possible to remove the jammed recording material.

FIG. 4 shows the configuration of a circuit for detecting a jam in each of these parts, where 20A and others are jam detection means in the jam occurrence area whose operation is suggested by each teaching plate 6 to 1O, and 30 is a jam detection means for these. A teaching section 6A-10A on the teaching board 6-1O, etc., which energizes the jam occurrence display section 40 in response to a detection signal from the detection means 20A and others, and instructs a jam clearing operation in an area corresponding to the signal. This is a control unit that controls the light to turn on or blink. It goes without saying that the control section 40 may also serve as a control circuit that controls the entire copying machine.

Next, other embodiments will be described with reference to FIGS. 5A, 5B, and 6.

This embodiment is an example of a case where, for example, as shown by the broken line in FIG.
As shown in Fig. B, the plurality of recording sheets Pl, h, and P, as well as the front and back of the transport section H, are stopped. Therefore,
When removing paper in such a case, papers P1 and P must first be removed before unit H is pulled out to the front, otherwise there is a risk of damaging these papers.

Therefore, in such a copying machine, it is necessary to clearly indicate the order of sheets to be removed before pulling out the unit H. Therefore, in this embodiment, instruction plates 6, 8.9 and 10 for teaching operations are provided, respectively. In the case of a display section with multiple numbers, for example, a teaching board 10, the display section 10A is shown in FIG.
Three indicator lights are provided for displaying ■, ■, and ■, such as l0A-■, l0A-■, and l0A-■.

Further, in this embodiment, detection sensors 21A, 22A, and 23A are provided as shown in FIG. 5B in order to detect a jam related to the above-mentioned unit H. When stopped, sensor 21A
, 22A and 23A are both turned "on" to detect the presence of paper, so the control unit determines that there are three sheets of paper related to this unit H, of which PIJ5 and h must be removed first. It is determined that there is Then, the order of the sheets to be removed, in this case, paper P, then P3, is to be removed, and the instruction boards 10 and 9 are written with instructions for removing them. Indicator lights ■ and ■ on the display section flash or light up in sequence, and after these removals, the indicator light ■ on the instruction plate 6 for operations related to paper P removal flashes or lights up. Allow withdrawals.

Now, if a jam occurs, the control unit will notify the user of the occurrence in the same way as described above, so the user will open the front doors IA and IB and then turn on the flashing or lighting on the instruction board. What is necessary is to remove the sheets corresponding to the numbers of the indicator lights in the order in which they are displayed.The procedure of instruction and display operations by the control unit when a jam occurs will be described below with reference to FIG.

First, in step S1, if the sensor 21A is "on", that is, it is determined whether or not the paper P is staying at this sensor position, and it is determined that the paper P is staying, step S2
Step S3 lights up the indicator light 10A-■ on the teaching board 10, indicating that the paper PI should be removed according to the procedure shown on the teaching board 10. Next, the process goes to step S3, where the sensor 22^
If the judgment is affirmative, the process proceeds to step S4, where the indicator light 9A-■ on the teaching board 9 is turned on to suggest that the paper P3 is to be taken out second. However, the removal order of papers P and P may be reversed.
In that case, the display order and numbers of the indicator lights will be reversed.

Next, in step S5, it is determined whether the sensor 23A is "on", and if the determination is affirmative, the process proceeds to step S6,
The indicator light 6A-■ on the teaching board 6 is turned on, and according to the instructions, the unit H is drawn out and the paper P1 is taken out. In addition, if the determination in step Sl is negative, it is determined that the paper is not accumulated in the conveyance area of the sensor 21A, and step S1 is determined.
Proceed to step 3. If the determination in step S3 is negative, there is no paper accumulated in the conveyance area of the sensor 22A, so the process branches to step s7, where it is further determined whether or not the sensor 23A is "on". ”, step s8
, turn on the indicator light 6A-■ on the teaching board 6, and press paper P2.
Make suggestions to allow removal of.

[Effect of the Invention J As explained above, according to the present invention, when a jam occurs, the user is notified of the occurrence by the jam notification means, so the user can see that the display means is in the visible state. By finding the teaching means and operating the operating members instructed by the display means in accordance with the taught procedure, the jammed sheets can be easily removed without damaging other sheets.

[Brief explanation of the drawing]

FIG. 1 is a front view showing an example of a copying machine to which the present invention is applied; FIG. 2 is a plan view showing an example of a teaching plate according to the present invention; FIG. 3 is an explanatory diagram showing an example of a state in which a jam occurs; FIG. 4 is a block diagram of a jam processing circuit according to the present invention, FIG. 5A is a front view showing another example of a copying machine to which the present invention is applied, and FIG. 5B is a block diagram of the copying machine shown in FIG. 5A. An explanatory diagram showing an example of a jam occurrence state, FIG. 6 is a front view of the embodiment shown in FIG. 5A, and FIG.
FIG. 8 is a plan view showing an example of the teaching board according to the embodiment shown in FIG. FIG. 10 is an explanatory diagram showing the arrangement of jam removal operation members in the copying machine shown in FIG. 9, and FIG. 11 is a plan view showing an example of a conventional display board. IA, IB...Front door, 2.3, 4.5...Cover 6.7, 8, 9.10...Teaching board, 6A, 7A, 8A, 9A, IOA, 6B,
7B, 8B, 9B, IOB... Display section, 6C, 7G, 8G, 9C, IOc... Message section, 20A, 21A, 22A, 23A... Jam detection means (sensor) 30... Control section , 40... Jam occurrence display unit, 100... Image forming apparatus, 201.202, 203, 204, 205, 206.2
07... Lever or knob, P, P+, Pi, P3... Seat.

Claims (1)

[Scope of Claims] 1) Jam notification means for notifying jams due to poor conveyance of sheets on the conveyance route; Teaching means provided for each area of the conveyance route and teaching jam removal procedures for each area; and the teaching means. a display means provided in each of the areas for instructing an operating member to be operated for handling the corresponding jam; and a control means for displaying the display means provided in the teaching means of the corresponding area in response to the occurrence of the jam; 2. A sheet conveying apparatus, characterized in that jam removal can be performed by operating an operating member instructed by the display means in accordance with a jam removal procedure taught by the teaching means. 2) The display means has a plurality of number display members each displaying the jam processing procedure in numerical order, and the jam processing can be performed according to the numerical order of the display state. sheet conveyance device.