CN1028130C - Document feeding method for recycling automatic document feeder - Google Patents

Abstract

An automatic document feeding method for a recycling automatic document feeder (RADF) for use with a copier or similar image recording apparatus. The last document to be returned and the document immediately preceding it are discharged in succession. The discharge of the last document occurs on the elapse of a predetermined period of time after the discharge of the immediately preceding document.

Description

Document feeding method for recycling automatic document feeder

The present invention relates to be used for the Automatic Cycle transmission of data machine (RADF) of duplicating machine or similar image recorder, refer more particularly to the operable a kind of method of carrying data of RADF.

The automatic transmission of data machine (ADF) that more than of data can be delivered to the record position of duplicating machine or similar image recorder is widely used at present.ADF makes RADF usually, can will overlay the exposure position of more than ground of data automatic transport to the duplicating machine glass platen on the resources island, and will be turn back to resources island (data that promptly overlays resources island is piled the top) through every data of illumination.With regard to RADF, use a drive source to drive two independent devices, promptly drive from the last stretch-draw of shelf to go out the device of data and be a kind of practice of routine with transmission of data to the device on the duplicating machine glass platen, this helps the miniaturization of RADF.The method that can be used in the conveying data of this RADF is that when carrying next to open data from resources island, the data that also will pass through illumination on the exposure position turns back on the resources island.

The problem of this traditional automatic transmission of data method is that two or more data can not only be transported away by a transmission of data circulation, therefore, it is longer relatively to be arranged in order two intervals between the data, has caused low transfer efficiency, so this method has hindered the raising of RADF travelling speed.In order to realize a kind of RADF of high speed, according to the data size, carry and time of returning a data can change, so that reduce the interval between the continuous data.And the new data that is returned can almost be sent on the estrade with last the data that is right after simultaneously.Yet these schemes have caused other problem.Interval between last data new and that be right after in short-term, new data is often owing to touch the front data and curved, or the front data that is right after of extruding.

An object of the present invention is to provide a kind of method of automatic transport data, it can make RADF run at high speed and not discharge fault, and guarantees therefrom will much be subjected to the data code of illumination to resources island exactly.

Another object of the present invention provides the general improvement of a kind of RADF of being used for and carries document method.

According to a kind of automatic transport document method of the present invention is to fold the image recording position that more than of data are transported to the image recorder that ADF is housed in order to be placed on one on the ADF estrade, thereby and from every data that the image recording operation will be carried out in record position there discharge make last data on the record position and with it adjacency on one can discharge in order, this method comprises: the size that detects every data of sending out successively from the data heap; Match with relevant detected data size and to change the time of conveying data; Interrupt discharging operation in the predetermined interval after the prevpage data that is right after is transferred out by record position; And, recover discharging operation again at a predetermined time interval past tense, from last data of record position output.

Purpose of the present invention, feature and advantage will embody from the detailed introduction below in conjunction with accompanying drawing more significantly.

Fig. 1 is a side isometric view of using the RADF of automatic transport document method of the present invention.

Fig. 2 A, B, C are the schematic block diagrams of the control system used of matching with RADF.

Fig. 3 is the discharge program flow diagram of present embodiment.

Fig. 4 is the trace routine process flow diagram of present embodiment.

Fig. 5 is the last page data trace routine process flow diagram of present embodiment.

See figures.1.and.2 A, B, C have represented that here a practical application Automatic Cycle of the present invention carries data device (RADF) and relevant therewith control system.As shown in the figure, whole RADF device is installed on the duplicating machine body 10, and is to be placed on the glass platen at duplicating machine body 10 tops.This RADF11 comprises the resources island 21 of piling up a folded data, carries a supply part 22(data bottom of data to carry at first from platform 21 to more than ground of glass plate 12 directions data); The data of supplying with part 22 is delivered to the transport portion 23 that glass platen 21 is also sent data again afterwards; The data that transport portion 23 is sent " is stood up " puts upside down part 24; The returning part 25 that data that part 24 sends sends back to the data heap top of resources island 21 will be put upside down; And the operation of control system 100 control each part mentioned aboves shown in Figure 2.

Resources island 21 is positioned at the end (with respect to the upstream side of transmission of data direction) of RADF11, is furnished with a pair of side shield 31 and a plurality of roller 32A and 32B of picking up on resources island 21.Stop member 33 is the top that front end relies on gravity to be put to lean against the data heap on the resources island with its free end.By behind the circulation passage that will introduce below one, the tail end relative from the end of every stop member 33 returns data, and separates with the information data area of originally piling up at resources island 21 therefrom in accordance with regulations.And stop member 33 also is used to prevent these data deflections.Data sensor 34 is positioned at the front of picking up roller 32A and 32B, is used to determine whether that data is at resources island 21.Each stop member 33 can make stop member 33 swing up and down by the mode that the sidewall (not shown) of RADF supports its supporting.The initiating signal that is sent by duplicating machine body 10 in the controller shown in Fig. 2 100 response is to one (unshowned) coil magnetization.The coil stop member 33 that moves up so that data is turned over, is sent back to then on the platform 21 and carries again after the excitation.Compressing tablet 36 is a kind of flexible, is made by mylar or similar material, is positioned on the downstream position of transmission of data direction of stop member 33, also by above-mentioned coil drive, pressure device sheet 36 is movable up and down, during moving downward, can push down the top of data heap when being subjected to being out of shape.

Supply with part 22 guide 41 is arranged, it extends to an end of glass platen 12 from a position near stop member 33, endless belt 42 extends along guide 41, stripper roll 43 be with 42 to keep-up pressure and contact, and have an one-way clutch (not shown) within it, pull-out roll 44 and 45 match towards the direction of glass platen 12 pull out by with 42 and stripper roll 43 folder under data, sensor 46 is arranged on the downstream of stop member 33, whether send to so that determine to pile up on platform 21 the last page data, sensor 47 also comprises the conveying motor 48 among Fig. 2 in response to the leading edge of being sent data and back rim in supplying with part 22.Since with 42 and roller 43 between the difference of coefficient of friction between rotational speed different and they and the data, with 42 and gap roller 43 only a data heap data is bottom delivered to pull-out roll 44 and 45.Clutch coupling 49 among Fig. 2 A is cut to the driving force of roller 43 selectively.Before being positioned at the sensor of supplying with part 22 and transport portion 23 meets or register sensing element 47 to detect a data during rim, this clutch coupling 49 separately, to be cut to the driving force of roller 43.A unshowned rotary encoder is connected on the pull-out roll 45, and pull-out roll 45 is driven by another pull-out roll 44, and rotary encoder and register sensing element 47 are contained in the overall dimensions pick-up unit, are used to the size of the data that detects.

Translator unit 23 has an endless belt 53 of walking around from pair of rolls 51 and 52, on the belt 53 that a plurality of rollers 54 are pressed in is lower, rotate with respect to glass platen 12.Driven by motor 55, translator unit 23 will be from supplying with a transmission of data that part 22 the transfers predetermined exposure position to the glass platen 12, and the data that will live through illumination is afterwards displaced glass platen 12 and delivered to and put upside down part 24.The exposure position stipulates like this, and for example the back rim of data overlaps at left end with glass platen 12 substantially, as shown in Figure 1.After numeration sensing element 47 finishes the back rim of data after testing, reverse on the basis of scrambler numeration with 53, this scrambler is in response to the rotation of pull-out roll 45.

Put upside down part 24 and have a upwardly extending arc guide piece 61 of an other end from glass platen 12; All edges guiding element 61 of putting upside down roller 62 extends; Pressure roller 63 compresses with respect to putting upside down roller 62; Adopt the selector switch 64 of ratchet form to be positioned at the downstream part of putting upside down roller 62, and movable between illustrated solid line and two positions of dotted line,, detect in addition among the sensor 65 of data and Fig. 2 and drive the motor 66 of putting upside down roller 62 above-mentioned putting upside down in the feed track.Guiding element 61 can turn over along putting upside down the data that feed track moves.Drive the roller 62 of action together and 63 motor 66 with irrelevant with motor 55 with 53 associated working, according to sensor or put upside down the output situation of sensing element 65, motor 66 with control continuously with 53 operation.At solid line position, selector switch 64 had been subjected to the data (as: one side data or its one side are by the two sides data of illumination) of illumination to direct into returning part 25 with one.At dotted line position, selector switch 64 makes this data that had been subjected to illumination, and (as: its one side is by two data of illumination) turn over, and carries towards the direction of glass platen 12 again then.

Returning part 25 is on resources island 21, and along the transmission of data direction of resources island 21, have a mobilizable discharger 71, guiding element 72,73 is connected with the rear portion of discharger 71 with 74, having constituted a mobile phase with device 71 combines, the leader that can shrink is used for from putting upside down the transmission of data auto levelizer 71 that part 24 is come out with 75.Discharger 71 has a guiding element 76, and it defines one by with 75 passing aways that extend to resources island 21.Many to distributing roller 77A and 77B, along guiding element 76 motor 78 is installed, be used for driven roller 77A and 77B and cover 79.When the data heap was placed in the stop member 33 that connects the opposite, the drive unit that is not illustrated moved to returning part 25 on the back rim position of data heap.Returning part 25 also comprises a pressing plate 81, and when returning part 25 1 moves on to above-mentioned position, this plate is just towards the direction pressure data heap of roller 43.In addition, sensor 82 is installed near the outlet of returning part 25, when detecting by returning part 25, during the data of being sent back to, sensor 82 output discharge information, this information is imported into the control system 100 shown in Fig. 2 B with the information from other various sensor outputs.

Shown in Fig. 2 A, B, C, control system 100 has a CPU (central processing unit) (CPU), I/O (I/O) interface 102, TTL circuit (TTL) 103; ROM (read-only memory) (ROM) 104, clock line 105, reseting circuit (IC) 106, inputoutput buffer 107,108 and 109, counter 110, motor control integrated circuit (ICs) (111-114), driver 115-118 etc.The single parts of control system 100 all are conventional components, have just narrated no longer specially here.According to the control program that is stored in the ROM (read-only memory) (ROM) 104, CPU101 control motor 48,55,66 and 78, coil 35, with the coil 83 of selector switch 64 cooperatings, with the coil 84 of pressing plate 81 cooperatings etc.Also show motor 95 that drives stripper roll 43 and the big electronic console (LEds) 96 that shows usefulness among Fig. 2 C.

During work, a folded data faces up on the resources island 21 that is placed on plane surface, and its preceding rim is near stop member 33, and relative side shield is close to each other, and to the side guiding of data heap, discharger 71 moves to the position that the data size adapts.Press the duplicating initiate key that is contained on the duplicating machine body 10, control system 100 just makes each bar driver circuit of RADF11 start working, thereby make pile up on platform 21 next opens data through supplying with part 22 and transport portion 23, be transported to the exposure position on the glass platen 12.Register sensing element 47 and scrambler are that size detecting device detects the data size that is transferred, and carry and return the time of data according to detected data adjusted size.

Specifically, response is from the control signal of duplicating machine body 10, with data heap contact below pick up roller 32A and 32B is driven, data is bottom delivered to endless belt 42 and roller 43 places, endless belt 42 and roller 43 will descend one page data to carry towards pull-out roll 44 and 45 directions successively most, in this moment, stop member 33 has been moved upward.The data that has arrived pull-out roll 44 and 45 is further by roller 44,45 with the 53 exposure positions that are transported on the glass platen 12, the size detecting device of front narration detects the data size that transmits by like this, pick up the running of roller 32A and 32B and supply part 22 according to detected data size Control, thereby be able to the control data transport cycle, remain within the minimum preset range at interval so that make between the data of two pages of continuous adjacent.Thereby in the given time cycle relevant, can in turn the data of maximum be delivered to glass platen 12 places with the data size, increasing sharply accelerates transmission of data speed greatly.

The data that is positioned at the exposure position on the glass platen 12 is carried out illumination by a scanner that is contained in duplicating machine body 10.

Put upside down the top of the data heap that will be discharged into after part 24 and returning part 25 will be turned over by the data of illumination will on the platform 21, specifically, with 53 with the transmission of data of illumination to putting upside down part 24.Putting upside down roller 62 and pressure roller 63 turns over data along guide 61 conveying data in putting upside down part 24.After arriving returning part 25, data is by being with 75 to be transported along guide 72,73 and 74, by distributing roller 77A and 77B and guide 76 data is discharged into the top of the data heap on the platform 21 then.In a manner described, data is sent Returning part 25 and successively by being placed on the stop member 33, thereby is separated by sign indicating number information data area below with original on platform 21.

In described embodiment, the CPU101 of control system 100 has worked out the special program relevant with the discharging data, and is extremely shown in Figure 5 as Fig. 3.In Fig. 3, CPU101 has determined whether discharge initiating signal (step P11), if answering is just to ask whether be that last 1 signal (P12) is if the answer of step P12 is a "Yes", this CPU101 determine to be installed in last data meter reading in the CPU101 whether be " 1 " (P13), if step P13 answers "Yes", CPU101 determines whether this data size, and for example font size, grow crosswise (LTY) are smaller, if any one step is all answered "No" among the step P12-P14, program enters into the step P16 that carries out common discharging operation.

Suppose that data is transferred continuously, illumination, be returned then, up to piling up originally till last data on the platform 21 has been left platform 21.That is not after the exposure position that is placed on the glass platen 12, and last data is carried by the direction towards glass platen 12, if the data size is smaller this moment, just is placed with two data on glass platen 12.In this embodiment, last data is through after illumination, last data and its subsequently be that last data is returned successively, the top of the heap of arrival data in order.After the data in the front in two data was delivered on the data heap, discharging operation interrupted a preset time gap periods, and then discharges last data.

Concrete condition as shown in Figure 3.If in steps the answer of P12-P14 be "Yes", CPU101 just waits for a period of time, and till predetermined expiration time delay (P15), and then carries out discharging operation program (P16).Selected scheduled delay does not contact two data of during ejection discharging successively each other, even they determine what an elder generation one afterwards was discharged from.Therefore, even be short at interval between last data and the last data that is right after with it, also can prevent this two data contacts.So just successfully prevented that last data from being curved by a last data adjacent thereto, or this last data influences the data of front.

Fig. 4 discharges to detect handling procedure.In this program, CPU101 has determined whether by signal (P21).Judged result is relevant therewith, determines whether emission sensor 82 is connected (P22) or cut off (P24).Connected if discharge sensor 82, CPU101 just sends by signal (P23).Disconnected if determine to discharge sensor 82 in step (P24), CPU101 just detects the timer of laying in it, judges a preset time cycle whether over and done with (P25).If step P25 answers "Yes", CPU101 just disconnects and discharges motor 78(P26).Then, CPU101 reduces also to adorn the reading (P27) of discharge instruction counter within it, afterwards and reduce the reading (P28) of last data counter.Be whether the reading of determining to discharge instruction counter is 1 step P29 after the step P28.Answer "Yes" as step P29, CPU101 just sends and discharges initiating signal (P30).

Fig. 5 is a last page data trace routine.As shown in the figure, CPU101 determines whether the conveying program of data finishes (P31), if answer "Yes", just judges whether on (P32) of sensor 46.If sensor 46 has disconnected, this just shows the preceding rim (being that last data is sent) that does not have data at stop member 33, and is that CPU101 will also not give off, just the data number on feed track is stored in the last data counter.Then CPU101 just sends last signal.

As mentioned above, in the embodiment of explanation, the CPU101 of control system 100 can make last data immediately and then the page up data be returned and firm just last one side data is discharged in a flash in the past of a predetermined period of time after a data is discharged on being adjacent.Therefore this RADF11 can high speed operation and do not discharge fault, can once and again stack data on resources island 21.

According to content disclosed in this invention, the various remodeling that those skilled in the art may carry out all do not exceed scope of the present invention.

Claims (6)

1, a kind of automatic transport document method, be used for to be placed on the folded data of one on automatic transmission of data machine (ADF) platform, many image recording positions of delivering to the image recorder that described ADF is housed, all carried out the image recording operation from every data that record position is discharged, make the last page data and be right after in the front of described last page data one page data to be discharged from successively, the method comprises the steps:

(a) size of every data of output is successively piled in detection from data,

(b) cooperate the data size of relevant detection, change the time of conveying data,

(c) in the front one page data that is right after after record position is discharged, interrupt predetermined period of time of discharging operation, when front that page data leave that there is a distance this picture record position and during near data discharger regional the last page data place the picture record position and

(d) at described predetermined period of time past tense, recover discharging operation, discharge the last page data from record position, after that page data of last page data front is discharged, a predetermined period of time is interrupted in the conveying of last this page data, in case this predetermined period of time is gone over, recovers the conveying of last page data, thereby two pages of data are discharged continuously.

2, in accordance with the method for claim 1, it is characterized in that data heap data first-selection bottom is transferred, the last page data is one page data of the top of described data heap.

3, in accordance with the method for claim 1, it is characterized in that also comprising that the data that will return successively is discharged into the step (e) at data heap top.

4, in accordance with the method for claim 3, it is characterized in that step (c) is included in the front data that is right after and has been returned to the last predetermined period of time afterwards of data heap, cut off the step (f) of described discharging operation.

5, in accordance with the method for claim 4, it is characterized in that step (b) comprises with relevant detection data size to match, change the step (g) of data time of return.

6, in accordance with the method for claim 1, it is characterized in that described image recorder comprises a duplicating machine, described record position comprises the exposure position of stipulating on the glass platen that is limited at described duplicating machine.

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