CN1013057B

CN1013057B - Method for conveying recording paper

Info

Publication number: CN1013057B
Application number: CN 85104263
Authority: CN
Inventors: 广濑邦彦
Original assignee: Toshiba Corp
Current assignee: Toshiba Corp
Priority date: 1985-06-05
Filing date: 1985-06-05
Publication date: 1991-07-03
Also published as: CN85104263A

Abstract

The present invention relates to a method for conveying recording paper in recording devices, such as a facsimile device, etc. The present invention is characterized in that recording paper is used and is pressed on a recording head by a paper pressing roller to keep the recording paper in a compression joint state; in the process that the recording paper is conveyed, recording is carried out by the recording head; after recording, the recorded part of the recording paper is continuously conveyed to a cutting knife, and the recording paper is cut off in the position where the cutting knife is arranged. In the method for conveying recording paper, the new end head of cut recording paper is conveyed to a position within a guide plate between a recording head and a cutting knife, and in the stage, the recording paper waits until a starting signal for the next record is received.

Description

Method for conveying recording paper

The invention relates to the invention of recording chart carrying method.In detail, be exactly invention about the carrying method of recording chart used in the pen recorder of classes such as facsimile unit.

On the pen recorder that adopts recording paper roll, recording chart will continue to be fed forward after writing down through record-header, till recording chart passes through cutting knife through the end that writes down the position, and herein recording chart is cut off.Recording paper roll after the cut-out before beginning is write down next time, return to its termination on the position of record-header.If just under such dissengaged positions, former state is fixedly waited for start-of-record next time to recording paper roll, the termination of paper roll, just from cutting knife to the segment record paper between the record-header can form one section sky the section.

On the other hand, on the pen recorder of service recorder coil paper, platen rolls by supporting arm and supports.This platen rolls on the housing that supporting arm is contained in device, and can free switching.Therefore, when recording chart results in blockage, in order to clear up the recording chart of obstruction, platen will be rolled from record-header and pull open, so as to unclamping the carrying path that comprises record-header.

But in this type of pen recorder, it all is to adopt the good silicone rubber of thermotolerance to make that platen rolls, thereby makes the platen contact wheel easily be with static.

Therefore, in a class process that keeps in repair, platen need be rolled supporting arm switching upward, so as to unclamping above-mentioned carrying path.At this moment because the termination of paper roll held by the static that platen rolls on, thereby and platen roll and together be raised.Only when recording chart is tightened up, just can rolls on and pulled down from platen.So this segment record paper just is separated from carrying path, at this time the termination of recording chart will be stuck on the guide plate.If in this state, just platen is rolled supporting arm and turn back the original place, drive the platen lift-over again when moving, can produce the latch up phenomenon of recording chart again.

Because above-mentioned shortcoming, the object of the present invention is to provide a kind of carrying method of recording chart, pull from record-header when platen is rolled, when unclamping carrying path, and platen is being rolled in the process that pushes away again on record-header, recording chart is remained on the carrying path always.

Recording chart carrying method of the present invention is to adopt recording paper roll, and utilizes platen to roll recording chart to be pressed on the record-header, to make both keep in touch state.In the process that writes down through record-header, recording chart is carried to the direction of cutting knife.After record was ended, recording chart continued to be fed forward, till the end of recording section is during by cutting knife.Under this state, recording chart is cut off.The recording chart that cuts off is sent beyond the device.When adopting the carrying method of this recording chart, the new termination of the recording paper roll after the above-mentioned cut-out is returned to guide plate between cutting knife and the record-header with on the interior position, make it be in holding fix.Recording chart is waited on this position, till the start-recording signal of receiving next time.Receiving tracer signal next time, before not beginning as yet to write down, the termination with recording chart pushes back on the record-header earlier, thereby reaches above-mentioned purpose next time.

That is to say, when adopting method of the present invention, be at pen recorder under the state of non-action, the termination of recording paper roll is delivered on the position in the guide plate between record-header and the cutting knife, when platen rolls when record-header pulls open, the termination of recording paper roll is subjected to stopping of guide plate, still stays on the original carrying path.

Adopt the recording chart carrying method among the present invention,, do not need additionally to take other operation, just recording chart can be rolled on disengagement from platen, thereby can realize maneuverable pen recorder platen being rolled when record-header pulls open.

Fig. 1 is the diagrammatic elevation view for the pen recorder of realizing the recording chart carrying method among the present invention;

Fig. 2 is the recording chart waiting status figure of the recording chart carrying method among expression the present invention;

Fig. 3 is the constitutional diagram of expression start-of-record;

Fig. 4 is the constitutional diagram of expression recording process;

Fig. 5 is the constitutional diagram that the expression recording chart cuts off;

Fig. 6 is the block scheme of the pen recorder control system that adopts in order to realize the recording chart carrying method among the present invention;

Fig. 7 is the former sequential chart;

Fig. 8 is the constitutional diagram that the expression platen rolls recording chart when record-header pulls open;

Embodiments of the invention

Below in conjunction with following cut line content of the present invention:

In pen recorder shown in Figure 1, in the housing 2 of device, recording chart carriage 3 is housed, record-header 4, platen rolls 5, cutting knife 6,

output rolls

7,8 etc.On the supporting arm 9 of each roller of housing 2 loam cakes of double as device, platen also to be housed to roll 5, output is rolled 7 driving and is rolled 7a, and output is rolled 8 driving and is rolled 8a and nip drum 8b.Roller bearing arm 9 is contained on the pin 10 on the device case.In this cover pen recorder 1, roller bearing arm 9 is fixed on the device case 2 shown in the solid line among the figure.This moment platen roll 5 and driving roll 7a and contact with record-header 4 and nip drum 7o respectively.When push-jump upward roller bearing arm 9, when being on the dotted line position among Fig. 1, the carrying path that is about to recording chart is opened.In addition, in this cover pen recorder 1, be a guide plate that leads to housing 2 shown in the symbol 11, it platen roll 5 and cutting knife 6 between, directly be contained on the housing 2 of device, can not rotate in company with roller bearing arm 9.

Pen recorder 1 can upwards pull open roller bearing arm 9, and recording paper roll 12 is contained on the paper roll bracket 3, and the end 12a with coil paper installs by the position shown in the 2nd figure again, then with 9 lockings of roller bearing arm.So just finished the preliminary work of record operation.

Following with reference to Fig. 6 block scheme and the paper feeding mode of the sequential chart declare record device 1 of Fig. 7.

At first input to central processing unit 21(hereinafter to be referred as CPU) by the initiating signal (input signal of facsimile unit) shown in Fig. 7 (a).Roll one of driving circuit 22 input by CPU to platen and scheme the motor reverse signal shown in (b) together.Receive that platen after this signal rolls 5 motor 23 and is driven running.In order to make recording paper roll 12 turn back to the opening entry position shown in the 3rd figure, roll 5 to platen and reserve certain rotation surplus, so will set a period of time length T to above-mentioned motor reverse signal by the holding fix shown in the 2nd figure ₁Therefore to wait until crossed during this period of time after, above-mentioned signal could be pushed into the end of recording chart 12 starting position of recording chart.By the time after above-mentioned motor reverse signal is eliminated, import a tracer signal from CPU to record controls loop 24, thereby make record-header 4 be driven running.Meanwhile, roll the positive rotaring signal of motor shown in 22 Fig. 7 of output (C) to platen.After receiving this signal, platen rolls 5 motor 23 and is driven running.So recording chart 12 is opening entry from the position shown in the 3rd figure just, and shown in the 4th figure, in recording process, passes cutting knife 6 and be fed forward.In the course of conveying of recording chart 12, if to the end of record signal shown in CPU21 Fig. 7 of input (d), CPU21 promptly carries a signal that stops to write down to record controls loop 24, thereby stops the driving power of record-header 4.If to the above-mentioned end of record signal of CPU21 input, it is T that CPU21 will export a time span ₂Signal.This time span T ₂Be to set through a period of time till the cutting knife 6 according to sending the later record terminal location to recording chart 12 of end of record signal.When this signal is eliminated, because CPU21 shown in Fig. 7 (e), makes above-mentioned motor stall.Just make recording chart 12 stop to carry.Meanwhile, CPU21 is to one of driving circuit 25 output of cutting knife 6 as scheme the cutter driving signal shown in (f), the result as shown in Figure 5, cutting knife 6 is driven.Through the cut segment record paper 12 of this operation,, upwards send from pallet 13 by the conveying of outlet nip drum 7 and 8.On the other hand, behind above-mentioned cutter driving fade-out, roll the motor reverse signal shown in driving circuit 22 Fig. 7 of input (g) to platen again from CPU21, by this signal, the new end of recording chart 12 is turned back to slightly and the position of cutting knife 6 at a distance of a segment distance, as shown in Figure 2 again.Henceforth, because the initiating signal of output repeats above-mentioned operation process again.

By above-mentioned example as seen, the action of motor 23 and the time that stops, and all depend on the timing function of CPU21 the actuation time of cutting knife 6.As long as the senser element that transports the several energy of installing detection position in the approach at recording chart 12, position so as to detection record paper 12, just can determine the actuation time and the stand-by time of above-mentioned each element according to the output signal that sensor sent at relevant position.

Adopt the method for the above feeding recordable paper, when pen recorder 1 is in shut down condition, the end of recording chart 12 as shown in Figure 2, return to cutting knife 6 at a distance of the position of a segment distance slightly.Leave record-header 4 if when maintenance platen is rolled, then shown in the 8th figure, the end of recording chart 12 is blocked by guide plate 11, thereby makes recording chart not roll 5 motions in company with platen, carries in the way and be parked in.

By above-mentioned example as seen, recording paper roll 12 is after cutting knife 6 cuts off, and its new end retreats slightly, makes recording chart 12 be in waiting status.After recording paper roll 12 is cut off by cutting knife 6, as long as its new end is got back on the position that is crushed on record-header 4, can be sent to that on the holding fix of above-mentioned recording chart 12, before the start-recording signal of not receiving next time, it is motionless that recording chart 12 just is in the state of wait.

By above-mentioned example as seen, the amount of returning of recording chart 12 after cutting off is very little, with 6 of cutting knifes at a distance of very little distance.Just wait on off-position the end of recording chart 12.If cutting knife 6 misoperations have only a bit of recording chart 12 can be admitted in the cutting knife 6, just occurrence record paper is stopped up, and the coating on the recording chart is trapped on the blade of cutting knife 6 for a long time, cause easily and get rusty, and make cutting knife malfunctioning, this is unfavorable.Therefore as far as possible the going-back position of the end of recording chart 12, be placed in the scope that the problems referred to above do not take place, and it is on the ideal position near cutting knife 6 as far as possible.When will making platen roll 5 when leaving record-header 4,,, rolls on 5 the position by recording chart 12 as long as being placed on the disengaging platen because the end of recording chart 12 lived for 11 grades by guide plate.

Claims

1, a kind of method of recording chart conveying wherein adopts recording paper roll, utilizes air roll, recording chart is pressed on the record-header, make both keep in touch state, record-header is carried recording chart in the process that writes down simultaneously to the cutting knife direction, after the end to be recorded, still continue paper feed, till the end of recording section passes through cutting knife, then recording chart is cut off, the recording chart that cuts off is sent device, it is characterized in that:

After described cutting knife cut off recording chart, the new termination of cut recording paper roll was located in guide plate between record-header and the cutting knife with on the interior holding fix, begins until the next record signal; Before the record that carries out next signal, by start-recording signal next time, the termination with recording chart returns on the record-header earlier.

2,, it is characterized in that the new termination of described recording paper roll returns to described holding fix from cutter, thereby the new termination of recording paper roll is positioned holding fix after described cutting knife cuts off recording chart according to the recording chart carrying method of claim 1.

3, according to the recording chart carrying method of claim 1, it is characterized in that after described cutting knife cut off recording chart, the new termination of described recording paper roll fell back on described record-header earlier, and then be transported to described holding fix, thereby the new termination of recording paper roll is positioned holding fix.