JPH0485555A - Jamming control device for image forming device - Google Patents

Abstract

PURPOSE:To easily recognize the recent tendency of the occurrence of jamming by displaying circumstances of jamming stored in a storage means in order from the circumstances of jamming which recently occurs. CONSTITUTION:In the case of confirming the jamming occurring circumstances while a copying machine is stand-by state, the total number of jamming occurring times till then is displayed by operating an information key 211 first. By forming a counter at one part of a RAM 206 and making it count up every time jamming occurs, the total number of occurring times is obtained. Next, by operating the information key 211, the jamming occurring circumstances are successively displayed from the circumstances of jamming which occurs recently. The jamming occurring circumstances are displayed in such a way, so that the tendency of the occurrence of jamming is recognized from the content of display. Especially, it is effective to take a measure to process jamming at the jamming part based on the position of jamming which recently occurs.

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a jam management device for managing the occurrence of jam in a paper conveyance path in an image forming apparatus such as a copying machine or a laser beam printer. .

<Prior Art> In an image forming apparatus, for example, a copying machine, a paper detection means is disposed at an appropriate position on a paper transport path in order to detect jams such as stagnation or delay of paper being transported. Then, depending on the detection state of the conveyed paper by this detection means, -°C and shirt detection is performed.

Conventionally, when paper jam was detected inside the copying machine,
The operation of the main body of the copying machine is stopped, and the jam display is displayed at the same time as the location where the jam has occurred.

With this display, the copying machine can be used by removing the jammed paper and resetting the jam.

<Problem to be solved by the invention> As mentioned above, in order to prevent jams from occurring, it is necessary to manage the situation where jams occur, that is, to recognize where jams occur frequently, and to focus on the locations where jams occur frequently. We recommend that you take measures against jams and reduce jams by performing maintenance, etc.

In this case, conventionally, jam management has been performed by counting the number of jams each time a jam occurs, depending on the location where the jam occurs. The situation can be grasped and jams can be dealt with accordingly f: Can be taken 0 However, simply counting the number of jams at the location where they have occurred is insufficient to determine the status of jams that have occurred recently, i.e., the recent trend of occurrence and their frequency. To understand in 1 minute: It is not possible.For the sake of safety, we will not focus on the areas where jams have been occurring frequently recently, and will only process areas with a large number of counts at 1°, which will suppress the occurrence of jams. I also get frustrated with things I can't do.

In view of the above-mentioned points, the present invention provides a new jam management system, and in particular, a new jam management system that can immediately recognize the recent situation at the location where a jam has occurred.
This is what we provide.

Means for Solving the Problems - The JAB-5 management system of the image forming apparatus of the present invention includes 1, a plurality of paper detection stages (stages) disposed in the paper transport path, and a paper transport system using the paper detection means. A jam detection means that performs jam detection according to the paper detection state.

Each time the jam detection situation by the jam detection means is stored in the storage means consisting of shirt detection@vc memory 1, 5 and the display means, the jam situation stored in the storage means is retrieved. The apparatus is characterized in that it reads out according to the instructions, and also includes a control means for performing the reading in response to a jam situation that has recently occurred, and displaying the information on the display means.

<Function 7> In the jam management device of the present invention, each time a jam occurs in the paper conveyance path, the jam status is stored in the storage means in the order of occurrence. The memory content is
The jam status is displayed on the display means, and the jam occurrence status can be grasped from the display. In this display, the ID, the shirt, and the status of the shirt in which the jam situation occurred most recently are displayed in order. Children can easily recognize recent trends in shirts and outbreaks.

<Embodiment 1>-5- Fig. 1 shows a control 70 related to shirt management of a copying machine which is an image forming apparatus according to the present invention, and Fig. 2 shows a control flow related to the control flow of Fig. 1. FIG. 3 is a sectional view showing a schematic internal configuration of a copying machine according to the present invention.

First, the configuration of the copying machine of the present invention will be explained with reference to FIG.

In FIG. 3, in the center of the interior of the copying machine main body 100,
A photosensitive drum 10 m long is rotatably installed, and a charged T-yarn 102 and a developing device 103 are mounted on the outer periphery of the drum.
Various copying process sections, which are image forming means, are arranged along with the fixing device 1, which forms part of the paper conveyance path, on the left side of the figure. O4 is installed. A circulation type automatic document supply bag Nl is provided on one side of the upper surface of the copying machine main body 100, and a first N9 section 5 provided vertically below the first document cylinder 20 and second document cylinder 21 of the apparatus is provided.
The 27th light section 6 is provided in parallel to the upper end surface of the main body 100, approximately on the "V" plane. Also, the copy machine itself.
On the other side of the - side, a third exposure section 1.05 mm (2 loaves) corresponding to canvas originals is provided, and an optical system with -2 series of exposure/sdem is configured.

On one side of the copying machine main body 100, paper feeding power centers 106A and 106B for copying paper Y are mounted, and at the lower center part, paper feeding cassettes 106C, 1061) are mounted. The copy sheets Y stored in these paper feed cassettes 106A to 106D are sequentially fed from the top 1 to 7, and are fed to the paper path 1.
08A-108D, and for that purpose, there is a paper feed roller 1 on the top of each paper feed force roller l-106A to 106D.
09A-109D are arranged respectively, and are rotated by the paper feed drive motor M8, and the paper feed paths 108A-10 are rotated by the paper feed drive motor M8.
Paper Y is selectively fed one by one to 8D. 1-distribution paper paths 108A to 108D and intermediate tray 1 to be described later
A paper conveyance roller 107 is provided on the paper feed path 115 from 13.
A to 107E are installed, and these transportation p-ra are rotationally driven by a driving sweater M9.
Step 2] Step i/1'' Intermediate copying paper Y' and feeding (7).

,, Iu upper part is the paper feed section [゛N photoconductor do) M101-%
This is the conveyance U-path that conveys all the copies (process section,..., and paper).

In addition to the main body 100 of the copying machine 100, an ink tray I/O is installed on the side of 1-y;
tshi・ilo(]ni(・”nisorenoiFS 01.8
It is 1 digit, and this is, ・'id SOI,
When s is turned ON for a predetermined period of time, in Fig. 3 Q' is turned on. Shift operation in the direction of the back of the paper l2, Then, feed the OSO 7 Butley 11 () partially to the E body → M1υl, z 1tfz Yanagi copy paper Y&, 1, off. When the tray 110-\ is conveyed i7, the paper is fed into the copying process, the box (image receiving-L stage, the fixing device 1 (
) 4, and then further extracted via the discharge route □11.1. , on the 11-output route 11m (
Good, it branches out from that and the six rules '2-rJ paper front and back F) turning route (
A switch bank M) 112 is provided, and the copy paper Y, which has passed through the copying process and fixing device 1t) 4 and has the original copied on the negative side, is
According to the desired copy content, the image is ejected using the three methods described in 1 above.

(1) The copy paper Y is ejected to the offset tray +10 through the extraction path 111 as it is. .

Gi) After ze 1 (heading towards output route 111'-), in order to return yj to the destination of copy paper Y, switch back 1
At step 12, one rotation is carried out, and in order to transport it again to the copying process, the copy paper Y stacked on the intermediate tray 113 is stored in the intermediate tray 113 at -9 o'clock. Paper feed 1 rotated by M14, sequentially starting from the tenth copy
′? Reconvey route 115-\lees feed 12 by roller 114
, feeding to the copying process 7, fixing device M, l 04
through the discharge path Ill to the offset tray 1.
Discharge to 10.

(ji) Ill - After fc toward the output route 111, turn the copy paper Y in the switchback route 112, then (]t, then move the copy paper Y to the ejection route 1 11, the tray 110, and the ejection route 11.
＼Ejecting,, 7 mentioned above, 3, Rainbow for transporting paper of type, and
The paper conveyance path between the ejection path 111 and the mailer back path 112 is configured as follows:
1st place B of emission route 10! , ri'd-kiri,,,f'
I routes 1m2a, 112b, these routes 112a and 11
2k) merges with 1. route 112e, route 112e
J, Su',,,7) M and intermediate 1=Route 112d towards Ray 113 2 configuration [Ru 3-7] J's own route 112a and Zeto exit route 11N, 51 branches ■Cho 1 is Gate flapper Gl, gate flapper G2 at the branch point of routes 112a and 1m2b, If' route 12e and 11.2
A gate hoop knockper G3 is installed at the branch point of d, and is operated by a respective drive solenoid to automatically select the transport path of the copy paper Y according to the desired copy content of the verator. , 7118A%118B, ll5c is installed near the branching point of routes 112a and 112b.
At the same time, there is a
1～゛I installed 119A, 11.9B, 119C f l
, 5. Convey copy paper Y [7-r].゛Also, route 1
A reversing roller 120 is installed on the path 112e near the branching point between 12a and 1m2b, and a driving motor Mll is connected to the reversing roller 120.
(7) Rotate the copy paper Y in the forward and reverse directions, rotate the conveyance force direction once, and install the reversing loft 121 at the branch part 1, original position F, and the 1 reverse rotation with M12 1. There is.

In the figure, the river 22C to 122A is the discharge route, 111 is placed along the
It is also a conveyance port. ”, Lower 1 for delivery and charging
22A to 122C are synchronized with the plurality of photoreceptor shafts 102, etc., and the fixing device @104, and are driven by the MIO. There is.

By adopting the configuration described in J., in the case of (1), the path 112a is closed by the gate flapper G1 and the copy paper Yf is
-J[Exit along the 1m path of the exit route. In the case of ai),
7. Close the extraction path 111 with the button Gl and transfer the copy paper Y' to the path 1m2a of the Mayraderback path 112.
The gate flapper G2 opens the route 1120, passes through the route 112e, and reverses the conveying direction with the BiL reversing 11-ra 121, while the gate flapper G3 opens the route 1120.
d is opened, and the copy paper Y is guided to the intermediate tray 113. In case 6 of Qii), after guiding the copy paper Y through the path 112e'', the conveying direction is reversed by the reversing roller 120, and the path 1!2b side is opened by the gate flapper G2.
b leads to a discharge route 11m.

As explained above, the copy paper Y' that has passed 1° through the copying process I passes through the fixing device (roller) 3.04, and passes through the paper transport path consisting of the discharge meridian iii and the switchback path 112 to each gate. Depending on the selection operation of the flappers Gl to G3, the sheet is reversely discharged, is reversed and then transported to the intermediate tray 113, or is directly discharged through the discharge path XIX.

Therefore, during the conveyance path of the copy paper Y explained above,
A paper detection sensor for detecting the conveyance state of paper is placed at an appropriate location. A sensor that detects the copy paper fed by the symbol S l O (r!:,, 7' fed from each sheet feeding force sensor l-106A and 106D), Sll is the arrangement of the transfer agent, S'F1 f? - Renst Y1 A sensor that detects when paper is being conveyed to the front 160, 8m2) A sensor that detects paper after it is fixed, 813+ is output 1 of the discharge path 11N.
- Sensors 1 and S that are placed near 1 and detect the ejected paper
14. branch lIj from the ejection path 111, a sensor for detecting the fed paper, 515 (d paper reversal conveyance (・τ
7 The paper detection sensor S16 detects intermediate 1.1.
・A sensor that detects paper to be published to 113,
S18 is a sensor that detects the paper being re-fed from the intermediate tray 113. In addition, S17 is the intermediate tray +13
This is a detection sensor that detects the presence or absence of paper inside.

By detecting the paper using the various sensors SIO to S18 described above, it is possible to detect jambs during conveyance, etc. This detection is a conventional one-stage detection, and the child details i/i', r, and 3 are omitted. This first stage of jam detection detects a stagnant jam or a delayed jam in accordance with the presence or absence of paper detected by the paper detection sensors SIO to S18. For example, Senzu SIN
Detecting paper Y at io, in the state of τ, if paper Y is detected even after a certain period of time has elapsed from the start of rotation of the resin golar 160, a stagnant jam is detected as a jam situation. At the same time, it is also output that the paper is jammed at the position of sensor S11.The situation of this jam is stored in a storage means which will be explained later. , when the time required for the sensor 5ILK to detect the paper is longer than necessary.

It will be detected as a delay sham.

Next, to explain the optical system provided in the copying machine main body 100, inside the copying machine main body 100, at the top h', there is a light source 150 that performs slit exposure on the document surface, mirrors 15mA, 151B.
, 151c, 151D Oh! An optical device system equipped with a lens 152 and a lens 152 is installed to enable scanning. In this optical device system, light from a light source 150 is irradiated onto the image surface of the document X, and the reflected light is distributed onto the surface of the photoreceptor drum 101 via mirrors 151A to 151D and a lens 152. In addition, in the optical device system, in response to presentation of the sheet document X of the circulating automatic document feeder 1, the first II light section 5 of the first document cylinder 2o and the second V light section 6 of the second document cylinder 21 are activated. Exposure 1'T in stop F2 state, 0
When an original, such as a paper copy, is placed on the third exposure unit 105, two systems are used to scan the light gamma light while scanning the M light. The system is for driving, and it is driven at -M+3 (it is set at 2).

In addition, the photoconductor is inserted into the belt photoconductor, and the J-, iiT
are arranged in parallel with the first, second, and third light-emitting portions (25, if the lens is constituted by a self-focusing transmitter or the like, a mirror is used)] Month 7 It is also possible to form an image on the photoreceptor.

In this copying machine, detection sensors are provided in each part, S7 is the optical system second N optical position detection sensor, S8 is the optical system illumination optical position detection sensor S9 is the OC section document leading edge position detection sensor number - .

Furthermore, although not shown in FIG. 1, in this apparatus, a clutch CLTI for feeding the original to the first N light section 5 and a clutch CLTI for feeding the document to the second W light section 6- are provided in the circulating automatic document feeder 1. In addition, a clutch CI,'l:'2-i is provided for synchronizing exposure of the copy paper and the leading edge of the document. A double-sided copying machine equipped with an automatic document feeder allows the operator to copy the contents desired by the operator. (1) Print multiple copies from the M-side IJii draft;
'f? :x Single-sided copy 'l・ ■ Sorting multiple copies from a single-sided original 1. f? -Double-sided copy sheet a) Ryoichi 1 one-sided bar j to sorting section L 7'r, single-sided copy sheet ■ Double-sided copy 7 sorted into multiple copies from a double-sided original γ-+
- In any case, it is possible to freely copy by circulating the source f multiple times. The copying apparatus according to the present invention is capable of copying a plurality of sheets l'17) during one cycle of printing by emitting high-pitched sweet μ light. '1 diagram
To the control device! The four copying machines and the circulating automatic document feeder 1 are controlled in relation to each other] 21. .

That is, each of the above (-ta Ml-・MI Je, j seven tabi-
2. To Iba 200, clutch C1, T1~・CLT3
Haku7tsuchi I・"Rime 201i'i":, Each thread 2
/Id S OX,...S O1,...8 are connected to the fiber 202, each of these fibers 200-202, DC power supply 79, etc. The control elements used for control, paper conveyance control, and process section control are the interface 7 eighth circuits (, I, /Q) 2.
03 and each detection sensor S1 to S18
3 connected to the interface circuit 203
, the intervoice circuit 203 is connected to the microcomputer 204 and outputs the detection signal from the detection sensor 51 to the input/output heater 204, and also outputs the detection signal from the detection sensor 51 to the input/output heater 204, and also outputs the detection signal from the microcomputer 204 according to the control signal from the microcomputer 204. ”-3 that controls and operates the storage drivers 200 to 203
, Microsenbi, -ta 204 is ROM 205 and RA
Connect to M206.
:Imbi.

The controller 204 controls the RAM 206 and the buffer
7, counters, timers, and other calculation areas (used in 7.-12j, stores the jab/detection status according to the present invention). 3. Also, the pattern, chair circuit 203 is connected to the driver 2.
07-11. TE dimming:,,':Z,, :=7
) 2 O81, Zupi 5 Connected to the amplifier 209, and Δbe1/-2 for evening operation on the operation panel 210.
11 and the front small driver 212.
The lime 212 (, is connected to the display section @213 at 1.7).Furthermore, the 5-surface ice circuit 203 is connected to selenium switches 55w1 to 5SW4, which will be described later.

The operation panel μ 210 has the configuration shown in FIG. 5, and includes a 10 key 211-1 for setting the number of copies, a clear key 211-2, a scroll key 2113, an information key 211-5, and a print switch. 211-
4, SET display section 213 COUNT display Rffi 213
2, an LCD display section 2+:11-3 is provided.

In the following configuration, 1.1'T will be explained in 2nd edition with reference to FIG.

The copying machine is turned on, and when the fixing temperature of the fixing device 104 reaches a constant temperature of 1, it becomes ready for use.
By operating 11-4, the entire loincloth copying operation starts. In this case, the number of sheets set as t is table 71': part 213
-1 is displayed on the front page, and the number of sheets that have been printed is displayed in the front section 2132 each time.

If the copying machine starts operating at 70- in FIG.
If the copying machine main body has the copy width (Nl), at L7, the king-kun copy control is performed using the actual hb in step N2.1. The paper Y selected during this control is in the cassettes 106A to 106D.
The sheets are fed one by one and transported along the transport path by the photosensitive drum 1.101-\.

([2, T, When the image is transferred after passing through the photoreceptor drum 101, the image is fixed via the constant latency device 104, and is then conveyed as it is to the tray 1/I 111f.
is discharged to. Alternatively, if double-sided copying is to be performed, the reversal path 12a is activated by the action of the gate flapper 01.
, 112e''=, and is conveyed in the reverse direction by the action of the reversing row ``j'121.
It is guided and carried out as t1 intermediate 1 and 113-\.

During the copying operation as described above, various sensors 510 placed in the paper conveyance path = paper detection 41 of S18.
The number is input to a microcomputer (CPU) 204 via a 110 baud 1.7-baud 1.203. ,CPU
2 The O4 side receives the paper detection signal and detects the jam condition. If paper jam is detected (N3) now,
The jam status is stored in the designated area of RAM 206 (N4
) to be done. The memory is in the order of occurrence of the jam+C sequential RA
The designated area of M206 is determined and stored. For example, by performing "2'HL + 1'" on the 7th dress (c, HT, ) specified when detecting a jam between songs, the current jam 5m 1st 17th will be set, and the current jam will be set.
Do L/S I-I L has 1 core (, 5 The jam situation is stored in the area 1, this jab, situation 1 is where the jammed paper is, 1:) It is possible to store the type of trap at any position of the center SIO~ S18 located in the transport route.

The jam position and jam type may also be stored together.

jam detected)1. For example, copy @ is -・-11, stop 1. Remove that shirt/paper 11. By first resetting the shirt, the copying operation can be started. Then, by manipulating the angle map 211-4 (1'-Z), the compound '17 operation begins.

Therefore, when checking the copying machine's standby status (--jam occurrence status, etc.) for maintenance, etc., the request (N5) is sent to rsi, CJ''i, fd:, information By operating ~2N1~5, the request will be made tomorrow, and the jam status of the last month's section 213-3i will be displayed (N6).An example of the display is shown in Figure 2. 1. Bottle, information key ~211
~5, operation f tt, as shown in Figure 2 (a), the total source of the second sham so far! One example! tic '14''
is displayed. This overall 1-1 tie is RAM20
Part 6 (/17) is configured so that it is activated every time a jam occurs.Next, by operating the information units 2Xi to 5e,
b) The situation of the occurrence of /j1's like shirt is revealed. “51” displayed on the left side of this display.
01 indicates the recently released iJE+, Tanoyam situation, and fortune-telling from that Jl is displayed on the right. 7) The display is 0, first the explanation I or the explanation I of the RAM 206.
・Memorize it in ゛res c, H, L) 7,! ζ jam position, 4 knees 1 step.

indicate.

Also, all the jams are on the display section 213-3! /(':table·
If it is not posted, next
1-3. By operating this, the jam status will be displayed in the order in which the jam occurs, as shown in FIG. 2(e).

If you operate the information key 211-5 in the state of (1)) (e) in Figure 2, the display in Figure 2 (a) will appear.
l) state V? , Return Z>o'l ft・,, ,
=,; 41 returned to redundancy from display of Yum status, +±
2, all you have to do is cancel the jam display request, for example, by operating the clear key 211-2.

As shown above, the jam occurrence 1] status is displayed i:1. , 2>
It is possible to recognize the tendency of occurrence of shirts from the display contents of i-, ζ゛, and ゛. One thing is immediately obvious.Therefore, the number ■ (minute transport 1) (゛guy+-' board etc. 9 changes and adjustments (te↓V-shirt, defense 11-effect Song yo 2 high 4ζ) If you can do 0 actual example i example v 8 ↓ t 1 then the entire position will be memorized in order of r 1 - ze ``C'', but I have to write the position C of l in a hurry.
1 times at the same time with the jam of: f (memory - Puruko J
I can also do 8.

From this situation, 1' point vs. A.
,! If there is a good conveyance route, it is possible to recognize the transport route.
, 167, explanation and details omitted [Mataga・Tsuya 1J4-
In state 6', the hill/memory is R, the power of the A/M is set to 91/-N, and the contents are preserved as FS'.
Also, the back amplifier power supply is connected) 5.
``7Mu J Song 7'' 7. The present invention's JaJ, sac 314] device'', recently occurred 6, shirt situation (``I, I's occurrence T) lu
By checking the maintenance snow (, /ζ↓...1.
)1゜

[Brief explanation of the drawing]

FIG. 1 shows the present invention (tj shirt management control T/'l]-fya-) and FIG. 2(A)-=(c
) shows an example of display of the jab/situation (VC, L: Z). Figure 4 shows an example of the operation panel section /J<"f East view, and Figure 5 (・4, Control circuit configuration of the present invention is shown in Figure 7). I:::ff
1, 1, 06 A, -I O6D: Paper feeder 107
A~107D: Paper conveyance 1 cor/f 108A□・
it) 8D: Paper feed path 109A, -109D:
Paper feed, roller 1.11: Ejection route +12: Switchback route 113: Intermediate 1 river 5 I 11.4
1 paper feed 1゛l-ra 115: Re-conveying path S 10
・-・118: Paper detection sensor '4+ Gl~G3 negative-1-flapper 204: CPU 206
:RAM Attorney Patent Attorney 1. −Yuzu! ]) Katsu (and 2 others) #2 Tuliangzu

Claims (1)

[Claims] 1. A plurality of paper detection means disposed in a paper conveyance path; a jam detection means for detecting a jam according to a detection state of the conveyed paper by the detection means; and a jam detection means by the jam detection means. a storage means for storing jam detection situations in the order of jam detection each time; a display means; reading out the jam situations stored in the storage means in accordance with a readout instruction; reading out the jam situations in the order of the most recently occurring jam situations; A jam management device for an image forming apparatus, comprising: a control means configured to display information on a display means; and a jam management device for an image forming apparatus.