CN106364158B - Ink-jet printer, Method of printing and automatic paper feeding method using the ink-jet printer - Google Patents

Abstract

The present invention provide it is a kind of can inhibit to be generated ink-jet printer that chevron or paddy shape rise and fall as far as possible by the continuous form of Z-fold and using the Method of printing of the ink-jet printer, and carry out paper feeding automatically and can carry out with can be avoided midway paper jam and in the state of avoiding generating chevron as far as possible or paddy shape rises and falls the automatic paper feeding method of paper feeding.The present invention is a kind of ink-jet printer, is had: paper feed part is configured by the continuous form of Z-fold；1st draw rollers and the 2nd draw rollers are used to convey the continuous form；Latching tractor is used to determine the position of the continuous form；Variable speed driver is used to apply tension to the continuous form；Printing portion is implemented to print by print head to the continuous form；And discharge unit, it is discharged it after implementing Z-fold to the continuous form by folding machine.

Description

Ink-jet printer, Method of printing and automatic paper feeding method using the ink-jet printer

Technical field

The present invention relates to a kind of ink-jet printer, utilize the Method of printing and automatic paper feeding method of the ink-jet printer, tool For body, be related to it is a kind of by ink-jet mode to being provided with joint-cutting at each paging and two sides be provided with verge-perforated length Shape continuous form implements the ink-jet printer of printing, utilizes the Method of printing of the ink-jet printer and sending automatically for ink-jet printer Paper method.

Background technique

It has been known that there is one kind to be beaten by ink-jet mode high speed to being provided with verge-perforated elongated continuous form implementation in two sides The ink-jet printer of print.

It, should by driving by the edge-punching of the latching insertion continuous form of latching tractor in the ink-jet printer Latching tractor carries out the conveying of continuous form.

As specific example, for example, as it is known that there is a kind of print unit by using ink-jet printer to come to roll web Tow sides implement the tow sides printing equipment (referring to patent document 1) of printing.In the tow sides printing equipment, work as volume When coil paper has paper feeding latching hole (edge-punching), the latching tractor of printing portion is set in appropriate time delivery roller Paper.

Furthermore it is known that there is a kind of both ends in paper wide direction to set up the continuous form reality for being equipped with chain hole (edge-punching) separately Apply the printer of printing (referring to patent document 2).In the printer, continuous form is sent into from device rear by tractor In printer body, after implementing printing, it is expelled in front of device from printer body.

Moreover, conveying continuous form in the printer to feeding-in roll by tractor, being opened by the conveying capacity of feeding-in roll Continuous form is positioned at printing position, carries out the printing of page 1 by the conveying of beginning continuous form.

In addition, the signal that the roller encoder based on the rotation axis for being equipped on feeding-in roll issues carries out printing control, based on pair The signal that the tractor encoder that the conveying capacity of tractor is detected issues carries out so-called " prompt (cueing) ".

Existing technical literature

Patent document

Patent document 1: Japanese Patent Laid-Open 08-216467 bulletin

Patent document 2: Japanese Patent Laid-Open 2014-34140 bulletin

Summary of the invention

However, continuous form made of being connected by multiple account vouchers etc. can be provided with joint-cutting in each paging, and Two sides are provided with edge-punching.

The continuous form is folded together at each joint-cutting, in by the state of Z-fold.

Printer described in tow sides printing equipment described in above patent document 1 or above patent document 2 is being utilized, When successively conveying above-mentioned continuous form from front end, it is easy to generate chevron or Gu Xingqi caused by folding line at the joint-cutting of continuous form Volt.

If being directed at continuous form while conveying in the state of producing above-mentioned chevron or paddy shape rises and falls and implementing printing, It is easy to happen printing dislocation, reduces the quality of printing.In addition, continuous form may touch the printing that its script should not contact Head, it is unsmooth so as to cause the discharge of print head, or damage print head surface.

In addition, not said to automatic paper feeding method in the tow sides printing equipment described in above patent document 1 It is bright, in the printer described in above patent document 2, although can automatic paper feeding, be easy especially feeding-in roll 8 front produce Raw above-mentioned chevron or paddy shape rise and fall.

The present invention completes in view of the foregoing, and its purpose is to provide one kind to inhibit as far as possible by Z-fold Continuous form generate the ink-jet printer that chevron or paddy shape rise and fall and the Method of printing using the ink-jet printer, and can Automatically it carries out paper feeding and can be sent with avoiding midway paper jam and in the state of avoiding generate chevron or the fluctuating of paddy shape as far as possible The automatic paper feeding method of paper.

The inventors of the present invention have found after having made intensive studies to the above subject, are opened by applying to transported continuous form The above subject can be solved, so as to complete the present invention in power.

Moreover, being conveyed and being beaten to being provided with edge-punching and be provided with the continuous form of joint-cutting at each paging When print, if being excessively applied with tension, it may cause and rupture occurs around the edge-punching of continuous form or occurs at joint-cutting disconnected It splits.Therefore, in the prior art, when being conveyed and printed, do not apply tension.

1st scheme of the invention is, it is a kind of by ink-jet mode to being provided with joint-cutting at each paging and set in two sides It is equipped with the ink-jet printer that verge-perforated elongated continuous form implements printing, wherein the ink-jet printer has:

Paper feed part is configured by the continuous form of Z-fold；

1st draw rollers and the 2nd draw rollers are used to convey the continuous form；

Latching tractor is used to determine the position of the continuous form；

Variable speed driver is used to apply tension to the continuous form；

Printing portion is implemented to print by print head to the continuous form；And

Discharge unit discharges it after implementing Z-fold to the continuous form by folding machine,

The latching tractor has latching, by the way that the latching is inserted into the edge-punching, can determine described continuous The position of paper,

The latching tractor is made of the 1st latching tractor and the 2nd latching tractor,

2nd latching tractor can vertically be moved by lifting device,

The pressing roller having for clamping the continuous form is abutted in the 1st draw rollers, and drive motor is installed,

The pressing roller having for clamping the continuous form is abutted in the 2nd draw rollers, and the speed change horse is installed It reaches,

Revolving speed of the variable speed driver by change the 2nd draw rollers, Xiang Suoshu continuous form application tension,

It in the transport path of the continuous form, is configured in order from upstream side: the 1st latching tractor, the described 1st Draw rollers, the printing portion, the 2nd latching tractor, the 2nd draw rollers,

And then there is the backward pull roller group being made of multiple rollers for applying tension while guiding continuous form,

In the transport path of the continuous form, which is set to the paper feed part and the 1st latching is led Between lead device,

At least one roller in the backward pull roller group is equipped with backward pull roller variable speed driver,

The backward pull roller variable speed driver is equipped with turn of the roller of the backward pull roller variable speed driver by changing Speed, Xiang Suoshu continuous form apply tension.

2nd scheme of the invention is, according to ink-jet printer described in the 1st scheme, wherein

The ink-jet printer is also equipped with for implementing dry drying section to the continuous form by printing,

On the transport path of continuous form, which is set between printing portion and the 2nd draw rollers.

3rd scheme of the invention is, according to ink-jet printer described in the 1st scheme, wherein

Print head is line-type recording head.

4th scheme of the invention is, according to ink-jet printer described in the 1st scheme, wherein

Latching tractor encoder is installed in the 1st latching tractor,

In the opposite side across continuous form of the 1st latching tractor, the front end for detecting continuous form is installed Benchmaring sensor.

5th scheme of the invention is a kind of Method of printing using ink-jet printer described in the 4th scheme, wherein

According on the basis of the specific position of benchmaring sensor continuous form detected a reference value, by with Detection obtained from the pulse for the latching tractor encoder that the amount of movement of 1st latching tractor proportionally exports is counted Value and the printing length information of page 1 being set on transmitter determine print start time by transmitter, issue printing and refer to It enables, the print head from receiving the print command is implemented to print to continuous form.

6th scheme of the invention is, according to Method of printing described in the 5th scheme, wherein

The distance that the preparation from joint-cutting to continuous form actually starts the position of printing is set in advance, will be conveyed in the distance Time needed for continuous form is added to print start time, postpones and issues print command.

7th scheme of the invention is a kind of Method of printing using ink-jet printer described in the 4th scheme, wherein

In the case where the unprinted page of continuous form has passed through printing portion, according to the detection of latching tractor encoder Value, for that can be printed since unprinted start page, by rotating backward the 1st draw rollers and the 2nd draw rollers, by continuous form It is forward conveyed again after to the direction conveying opposite with conveying direction, implements printing.

8th scheme of the invention is, a kind of to utilize ink-jet printer described in any one of the 1st scheme~the 4th scheme Method of printing, wherein

When the conveying speed of continuous form is slowed down, with the resolution ratio implementation record before will slowing down,

When the conveying speed of continuous form accelerates, with the resolution ratio implementation record after just accelerating.

9th scheme of the invention is, it is a kind of by ink-jet mode to being provided with joint-cutting at each paging and set in two sides It is equipped with the automatic paper feeding method that verge-perforated elongated continuous form implements the ink-jet printer of printing, wherein

The ink-jet printer has:

Paper feed part is configured by the continuous form of Z-fold；

1st draw rollers, intermediate draw rollers and the 2nd draw rollers, are used to convey the continuous form；

1st latching tractor and the 2nd latching tractor are used to determine the position of the continuous form；

Printing portion is implemented to print by print head to the continuous form；And

Discharge unit discharges it after implementing Z-fold to the continuous form by folding machine,

The 1st latching tractor and the 2nd latching tractor are respectively provided with latching, by the way that the latching is inserted into the edge Perforation, can determine the position of the continuous form,

The 1st drive motor is installed by clutch in the 1st latching tractor,

It has been mounted directly the 1st drive motor in the 2nd latching tractor,

The 2nd latching tractor can move, with from by the latching be inserted into the verge-perforated state become by The state that the latching is pulled out from the edge-punching,

In the opposite side across the continuous form of the 2nd latching tractor, it is equipped with described continuous for detecting The paper detecting sensor of the front end of paper,

In the 1st draw rollers, the intermediate draw rollers and the 2nd draw rollers, it is separately provided for described in clamping The pressing roller of the detachable of continuous form, and the 2nd drive motor is separately installed respectively,

It in the transport path of the continuous form, is configured in order from upstream side: the 1st latching tractor, the described 1st Draw rollers, the printing portion, the intermediate draw rollers, the 2nd latching tractor, the 2nd draw rollers,

The automatic paper feeding method is made of following steps:

Step 1 is rapid, and the latching of the 1st latching tractor is inserted into the edge-punching of the continuous form,

Second step connects the clutch, drives the 1st latching tractor, conveying by the 1st drive motor The continuous form detects the front end of the continuous form up to the paper detecting sensor, then stops the 1st driving Driving of the motor to the 1st latching tractor；

Third step, the pressing roller for being set to the intermediate draw rollers for making to be detached from are connected to the intermediate paper drawing Roller clamps the continuous form between draw rollers and the pressing roller for being set to the intermediate draw rollers among this, by this The continuous form is delivered at a slow speed downstream side by intermediate draw rollers, meanwhile, it is led to from the intermediate draw rollers to the 1st latching The continuous form between lead device applies tension；

Step 4 is rapid, and the latching of the 2nd latching tractor is inserted into the edge-punching of the continuous form；

Step 5 is rapid, by cutting off the clutch, the 1st latching tractor is made to be driven in the defeated of the continuous form It send, the 2nd latching tractor is driven by the 1st drive motor, the continuous form is delivered to the discharge unit；

Step 6 is rapid, and the mobile 2nd latching tractor is to pull out the latching from the edge-punching；And

Step 7 is rapid, in the 1st draw rollers and is set between the pressing roller of the 1st draw rollers, and described It 2nd draw rollers and is set between the pressing roller of the 2nd draw rollers, clamps and conveys the continuous form.

Invention effect

In ink-jet printer of the invention, the 2nd draw rollers in the 1st draw rollers and the 2nd draw rollers is equipped with speed change Therefore motor changes the revolving speed of the 2nd draw rollers by the variable speed driver, can apply tension to continuous form.

Specifically, the state synchronous from the revolving speed of the 1st draw rollers and the revolving speed of the 2nd draw rollers, becomes making the 2nd draw rollers Revolving speed be faster than the revolving speed of the 1st draw rollers according to regulation ratio, hereby it is possible to apply tension to continuous form.

Moreover, because be provided at each paging joint-cutting continuous form may due to being applied excessive tension and It is broken at its joint-cutting, it is therefore preferable that making the revolving speed of the 1st draw rollers of revolving speed high specific of the 2nd draw rollers fastly about 0.05%, also It is to say, preferably variance rate is about+0.05% or less.

Accordingly, even if when conveying the continuous form configured by Z-fold to paper feed part, due to being applied with to continuous form Certain tension, therefore can prevent chevron or paddy shape caused by generating folding line in the position of joint-cutting from rising and falling.

In addition, in printing printing dislocation or print quality decline can be prevented, moreover it is possible to prevent print head and continuous form It is in contact.

In ink-jet printer of the invention, led when the transport path in continuous form is configured in order latching from upstream side When lead device, the 1st draw rollers, printing portion, 2 draw rollers, tension appropriate can be applied in the entire transport path of continuous form.

In ink-jet printer of the invention, has in turn on the transport path of continuous form and be set to paper feed part and bolt The backward pull roller group between tractor is sold, backward pull roller variable speed driver is installed at least one roller in backward pull roller group (hereinafter referred to as " BT variable speed driver "), when the BT applies tension to continuous form by changing the revolving speed of roller with variable speed driver When, it, can be by latching tractor due to being also applied with tension to the continuous form between paper feed part and latching tractor Latching is accurately inserted into the edge-punching of continuous form.

Hereby it is possible to prevent the generation of latching tractor from following failure to continuous form.

In ink-jet printer of the invention, when so that have dry dry for implementing to the continuous form by printing When dry portion, since drying can be implemented to the continuous form by printing before discharge, it can prevent from printing after the exit Content be transferred to other continuous forms.

In addition, when the transport path in continuous form has drying section to be set between printing portion and the 2nd draw rollers, due to It is applied with tension to continuous form, therefore balanced drying can be implemented.

In ink-jet printer of the invention, when print head is line-type recording head, flying print can be implemented.

In ink-jet printer of the invention, when being equipped with latching tractor encoder in latching tractor, led in latching When the opposite side across continuous form of lead device is equipped with the benchmaring sensor of the front end for detecting continuous form, pass through Continuous form is detected by benchmaring sensor, the latching tractor of continuous form is driven in by the measurement of latching tractor encoder Amount of movement, can identify the location information of conveyed continuous form.

Start to print when hereby it is possible to reach printing portion in position.

In Method of printing of the invention, it is according to the specific position with benchmaring sensor continuous form detected The a reference value of benchmark, by the pulse of the latching tractor encoder that the amount of movement with latching tractor is proportionally exported into Detected value obtained from row statistics and the printing length information of page 1 for being set in transmitter, determining printing by transmitter Time issues print command, and the print head by receiving the print command is implemented to print to continuous form, therefore, can be with simple Process flow implement printing.

In this way, even if can also follow continuous form when high speed conveys continuous form and implement printing.

In Method of printing of the invention, the position that the preparation from joint-cutting to continuous form actually starts printing is set in advance Distance, the time needed for conveying continuous form in the distance be added to print start time, and postpone and issue print command, because This, can suitably be modified to accurate printing initiating position.

In Method of printing of the invention, in the case where the unprinted page of continuous form has passed through printing portion, according to The detected value of latching tractor encoder, to be printed since unprinted start page, by least making the 1st draw rollers and the 2nd Draw rollers rotates backward, and forward conveys again after continuous form is conveyed to the direction opposite with conveying direction, implements printing.According to This, can be avoided the blank sheet of paper part (unprinted page) that waste has passed through printing portion.

In Method of printing of the invention, when the conveying speed of continuous form is slowed down, with the resolution ratio before will slowing down Implementation record；When the conveying speed of continuous form accelerates, with the resolution ratio implementation record after just accelerating.Accordingly, though When continuous form has carried out acceleration or deceleration, remain to implement continuously to print, and can inhibit to occur printing effect is fuzzy or acutance not Enough phenomenons.

In automatic paper feeding method of the invention, by implement step 1 is rapid, second step, third step, step 4 are rapid, the 5th Step, step 6 are rapid and step 7 is rapid, can swimmingly implement automatic paper feeding, halfway will not paper jam.

Further, since being applied with tension to by the continuous form of Z-fold, can especially be generated in printing portion inhibiting Chevron or paddy shape implement paper feeding in the state of rising and falling.

Detailed description of the invention

Fig. 1 is the main view for showing the outline of ink-jet printer of present embodiment.

Fig. 2 is the flow chart for showing the Method of printing for the ink-jet printer that present embodiment is utilized.

Fig. 3 is the figure of the length of delay in the Method of printing of the ink-jet printer for illustrating to be utilized present embodiment.

Fig. 4 is to show after continuous form is accelerated in the Method of printing for the ink-jet printer that present embodiment is utilized Example figure.

(a) of Fig. 5~(c) is the printing side for illustrating to be utilized the callback function of the ink-jet printer of present embodiment The explanatory diagram of method.

Fig. 6 is the generalized schematic for showing the ink-jet printer of the automatic paper feeding method for present embodiment.

Fig. 7 is the flow chart for showing the automatic paper feeding method of present embodiment.

Fig. 8 is the main view for showing a part for the continuous form in ink-jet printer of the invention.

Symbol description

1 ... paper feed part

The 1st draw rollers of 2a ...

The 2nd draw rollers of 2b ...

The intermediate draw rollers of 2c ...

3 ... latching tractors

The 1st latching tractor of 3a ...

The 2nd latching tractor of 3b ...

31 ... benchmaring sensors

32 ... latching tractor encoders

33 ... clutches

34 ... drive motors

35 ... paper detecting sensors

4 ... variable speed drivers

40 ... TACH encoders

5 ... printing portion

6 ... discharge units

61 ... folding machines

7 ... drying sections

8 ... backward pull roller groups

8a ... roller

9 ... transmitters

91 ... conveying instruction departments

92 ... location information operational parts

93 ... length of delay operational parts

100,101 ... ink-jet printers

H ... shell

M ... joint-cutting

M1, M1 ' ... conveying instruction

M2 ... a reference value

M3 ... pulse

M4, M4 ' ... print command

M5 ... TACH pulse

P ... edge-punching

S1 ... step 1 is rapid

S2 ... second step

S3 ... third step

S4 ... step 4 is rapid

S5 ... step 5 is rapid

S6 ... step 6 is rapid

S7 ... step 7 is rapid

X ... continuous form

Specific embodiment

In the following, the preferred embodiment of the present invention is described in detail referring to attached drawing as needed.Moreover, in attached drawing Identical symbol is marked to identical element, repeat description is omitted.If not in addition, having special explanation, up and down Etc. positional relationships be positional relationship shown in the drawings.Moreover, the dimension scale of attached drawing is not limited to the ratio of diagram.

Ink-jet printer of the invention is, by ink-jet mode to being provided with joint-cutting M at each paging and set in two sides The elongated continuous form X (referring to Fig. 8) for being equipped with edge-punching P implements the device of printing.

Firstly, an embodiment to ink-jet printer of the invention is illustrated.

Fig. 1 is the main view for showing the outline of ink-jet printer of present embodiment.

As shown in Figure 1, the ink-jet printer 100 of present embodiment has: paper feed part 1 is configured by the continuous of Z-fold Paper X；Backward pull roller group 8 is used to apply tension while guiding continuous form X；1st draw rollers 2a and the 2nd draw rollers 2b is used to convey continuous form X；Latching tractor 3 is used to determine the position of continuous form X；Variable speed driver 4, For applying tension to continuous form X；Printing portion 5 is implemented to print by print head (not shown) to continuous form X； Drying section 7 is used to implement drying to the continuous form X by printing；Discharge unit 6, by folding machine 61 to the continuous paper X is opened to implement Z-fold and discharge it；And shell H, it is used for built-in above structure and is protected.

In the following, each structure is described in more details.

Paper feed part 1 is configuration by the position of the continuous form X of Z-fold.

Moreover, paper feed part 1 is set in shell H, but the present invention is not limited thereto, and paper feed part 1 may also set up in shell H Outside.

Backward pull roller group 8 is made of multiple roller 8a, is configured between paper feed part 1 and latching tractor 3.

Moreover, being equipped with BT with variable speed driver (not shown) at least one roller 8a in backward pull roller group 8.

Moreover, as the BT variable speed driver, can using the servo motor of speed etc. can be controlled in servo mechanism, or The motor etc. of differential speed variator is equipped on other motor.

In backward pull roller group 8, tension can be applied when guiding continuous form X.That is, BT is logical with variable speed driver The revolving speed for changing roller 8a relative to the revolving speed of aftermentioned 1st draw rollers 2a or the 2nd draw rollers 2b is crossed, can be applied to continuous form X Tension, and adjustable tension.Therefore, because the continuous form X between paper feed part 1 and latching tractor 3 has also been applied tension, Therefore the latching of latching tractor 3 can accurately and be effectively inserted into the edge of continuous form X in the transmission process of continuous form Perforate P.

In such manner, it is possible to prevent the generation of latching tractor 3 from following failure to continuous form.

Latching tractor 3 is provided with a pair, respectively corresponds with the edge-punching P for the two sides for being set to continuous form X.And And a pair of of latching tractor 3 movement synchronized with each other.

The structure of latching tractor 3 is identical as well known technology, has and is sticked in the latching of edge-punching P, and to defeated Send the drive sprocket 32a of latching belt of the direction driving with latching.

Therefore, latching tractor 3 is set to the side of the two sides continuous form X by the latching insertion by each latching tractor 3 Edge perforation P, can determine the position of continuous form X.

Herein, in the opposite side across continuous form X of latching tractor 3, benchmaring sensor 31 is installed.

The benchmaring sensor 31 can set benchmark for example, by detecting the front end of continuous form X.

In addition, when being positioned continuous form X and being installed on latching tractor 3, if the front end of continuous form X has passed through When benchmaring sensor 31, since benchmaring sensor 31 can not detect the front end of continuous form X, by continuous form So that continuous form X is advanced again after X readjustment, the front end of continuous form X is detected by benchmaring sensor 31.Moreover, working as Make benchmark, be not limited only to the front end of continuous form X, is also possible to arbitrary position.

In addition, in the drive sprocket of at least one of latching tractor 3 for being equipped with benchmaring sensor 31 32a is equipped with latching tractor encoder 32.

The latching tractor encoder 32 is used to measure the amount of movement of latching tractor 3.

Accordingly, by the basis of the specific position detected of benchmaring sensor 31, by latching tractor encoder The amount of movement of 32 measurement latching tractors 3, can identify the location information of conveyed continuous form X.

Accordingly, according to above-mentioned location information, start to print when can reach printing portion 5 in position.Moreover, closing In the details of the Method of printing, referring to aftermentioned content.

In ink-jet printer 100, the pressing roller for clamping continuous form X is connected to the 1st draw rollers 2a and the 2nd respectively Draw rollers 2b.

In addition, being equipped with drive motor (not shown) in the 1st draw rollers 2a, variable speed driver is installed in the 2nd draw rollers 2b 4。

Therefore, it by clamping continuous form X between the 1st draw rollers 2a and corresponding pressing roller, is driven using drive motor Dynamic 1st draw rollers 2a, and, continuous form X is clamped between the 2nd draw rollers 2b and corresponding pressing roller, utilizes variable speed driver 4 The 2nd draw rollers 2b is driven, that is, can transport continuous form X.

It, can be using the servo motor of speed etc. can be controlled in servo mechanism, or at it moreover, as the variable speed driver 4 His motor is equipped with the motor etc. of differential speed variator.

In the 2nd draw rollers 2b, variable speed driver 4 is by changing turning relative to the 1st draw rollers 2a for the 2nd draw rollers 2b Speed can apply tension, and adjustable tension to continuous form X.Therefore, because between the 1st draw rollers 2a and the 2nd draw rollers 2b Continuous form X has also been applied tension, can prevent from generating folding line in the position of the joint-cutting of continuous form X especially in printing portion 5 Caused by chevron or paddy shape rise and fall.

In addition, in printing printing dislocation or print quality decline can be prevented, moreover it is possible to prevent print head and continuous form X is in contact.

Moreover, because the continuous form of joint-cutting is provided at each paging, it may be because being applied excessive tension And be broken at its joint-cutting, it is therefore preferable that make the revolving speed of the 2nd draw rollers at most than the revolving speed of the 1st draw rollers fastly about 0.05%, That is, it is preferable that variance rate is about+0.05% or less.

It is built-in with print head (not shown) in printing portion 5, by the print head, implements to print to continuous form X.

, can be using string type record head or line-type recording head etc. as the print head, and the viewpoint based on flying print, It is preferred that using line-type recording head.

Drying section 7 is to implement dry position to the continuous form X by printing.

It, can be after the exit since drying section 7 can implement drying to the continuous form X by printing before discharge The content for printing on regulation page is prevented to be transferred on other pages.

In addition, in the transport path of continuous form, due to drying section 7 be set to printing portion 5 and the 2nd draw rollers 2b it Between, continuous form X is in the state for being applied tension.Therefore, drying equably can be implemented to continuous form X.

Paper discharge unit 6 is after the continuous form X by 61 couples of folding machine by printing implements Z-fold, by the continuous form The position of discharge.

Here, paper discharge unit 6 is set in shell H, but the present invention is not limited thereto, and paper discharge unit 6 may also set up in shell H Outside.

In the ink-jet printer 100 of present embodiment, it is configured in order from the upstream side of the transport path of continuous form X Paper feed part 1, backward pull roller group 8, latching tractor 3, the 1st draw rollers 2a, printing portion 5, drying section 7, the 2nd draw rollers 2b, paper discharge Therefore portion 6 can apply tension appropriate to continuous form X in entire transport path.It, can be to continuous especially in printing portion Paper X applies enough tension.

Specifically, can be according to the thickness and material of continuous form X, the revolving speed for changing the 2nd draw rollers is faster than the 1st paper drawing The ratio of the revolving speed of roller applies tension appropriate.Under normal circumstances, ratio when paper is thicker be greater than paper it is relatively thin when The ratio.

Next, being illustrated to the Method of printing for the ink-jet printer 100 that present embodiment is utilized.

Fig. 2 is the flow chart for showing the Method of printing for the ink-jet printer that present embodiment is utilized.

As shown in Fig. 2, in the Method of printing that ink-jet printer is utilized, firstly, being examined by benchmaring sensor 31 It surveys before the front end of continuous form X, that is to say, that before carrying out paper feeding, the printing length of page 1 is set in transmitter 9.

Then, the start button for starting printing is pressed, conveys instruction department 91 (for example, action control) to the 1st draw rollers 2a And the 2nd draw rollers 2b issue conveying command M 1.Accordingly, start to convey continuous form X.

In addition, conveying instruction department 91 also issues conveying command M 1 ' to dedicated motor M1-1, dedicated motor M1-1 uses TACH Encoder 40 rotates.TACH is synchronous with the 1st draw rollers 2a or the 2nd draw rollers 2b holding with encoder 40.

Then, TACH issues TACH pulse M5 to location information operational part 92 with encoder 40.

Then, on the basis of the specific position of the paper detected of benchmaring sensor 31, a reference value M2 is sent To transmitter 9.

Further, since drive latching tractor 3 by conveying continuous form X, with the amount of movement of the latching tractor 3 at The pulse M3 of the latching tractor encoder 32 exported to ratio is sent to transmitter 9.

In this way, the location information operational part 92 of transmitter 9 according to TACH pulse M5, a reference value M2, by pulse M3 into Row counts resulting detected value and is set in advance in the information of the printing length of page 1 of transmitter 9, calculating location information, really Determine print start time, and issues print command M4 to printing portion 5.

Then, the length of delay operational part 93 of transmitter 9 calculates continuous form X cutting from the continuous form X being set in advance Time (length of delay) needed for seam M is transported to the position for preparing actually to start printing.

Then, by the way that the length of delay is added to print start time, the printing that sending print command has been postponed in sending refers to Enable M4 '.

Fig. 3 is the figure of the length of delay in the Method of printing of the ink-jet printer for illustrating to be utilized present embodiment.Fig. 3 In, (1) shows the ON/OFF (ON/OFF) for starting the start button of printing, and (2) are shown to be referred to by the printing that transmitter 9 issues The ON/OFF (0N/OFF) of M4 is enabled, (3) show the ON/OFF (ON/OFF) of actual printing initiating position, and (4) are shown continuously The conveying speed of paper X.

As shown in figure 3, time and the actual printing initiating position (ON) of the print command M4 (ON) that transmitter 9 issues Time Inconsistency produces time warping.

Specifically, for example, initial print command CUE-1 and initial printing initiating position that transmitter 9 issues There are the time differences between CUE-P.

The time difference is length of delay.

The time for the length of delay being set in advance is postponed in print command by length of delay operational part 93.

Moreover, length of delay changes according to what is be set in advance slave the distance between joint-cutting to practical print position difference.

In addition, speed is a timing, length of delay does not change.When speed changes, length of delay changes therewith. In addition, rule of thumb rule is set the occurrence of length of delay.

Hereby it is possible to be printed since practical print position, rather than printed since joint-cutting.

In addition, even if existing between print command M4 and actual printing initiating position that transmitter 9 issues by continuous paper Dislocation caused by the conveying speed of X is opened, or reaches the inking time difference caused by the distance against the continuous form X of nozzle head, By adjusting above-mentioned length of delay using above method etc., it can suitably be modified to accurate printing initiating position.

Moreover, according to the modified time receive the print head of print command M4 ' and implement to print to continuous form X.

In this way, can implement to print by simple process flow in the Method of printing that ink-jet printer is utilized.Cause This, even if can also follow continuous form X when high speed conveys continuous form X and implement printing.

In the Method of printing that ink-jet printer is utilized, even if the conveying speed of continuous form X is in acceleration or deceleration State can also be implemented to print.

Fig. 4 is to show after continuous form is accelerated in the Method of printing that ink-jet printer is utilized of present embodiment Example figure.In Fig. 4, (1) shows the ON/OFF (ON/OFF) of print command, and (2) show the up/down (UP/ of print head DOWN), (3) show the conveying speed of continuous form X.

As shown in figure 4, print head becomes DOWN when print command becomes ON, in printing standby mode.

Then, while starting printing, the conveying speed of continuous form X accelerates to 10m/min from Om/min, in drying Before the temperature of machine reaches a certain level, temporarily the fixed speed of 10m/min is kept then to accelerate to 80m/ from 10m/min min。

That is, not only can continuously implement to print when the conveying speed of continuous form X is fixed speed, even if It also can continuously implement to print when in acceleration mode.

Moreover, although not shown, even if also can continuously implement to print when continuous form X is in deceleration regime.

Herein, in above-mentioned Method of printing, when the conveying speed of continuous form is slowed down, with point before will slowing down Resolution is recorded, and when the conveying speed of paper is accelerated, is recorded with the resolution ratio after just accelerating.

For example, if only reducing the conveying speed of continuous form X, resolution ratio can gradually rise, therefore, pass through when slowing down The time that print head discharge ink is postponed while reducing the conveying speed of continuous form X, low resolution is maintained with this.

When accelerating, if only improving the conveying speed of continuous form X, resolution ratio can be gradually decreased, therefore, by improving Accelerate the time of print head discharge ink while the conveying speed of continuous form X, to maintain high-resolution.

Accordingly, even if also can continuously implement to print when continuous form X carries out acceleration or deceleration, and it can inhibit printing effect There is a situation where fuzzy or acutance is inadequate for fruit.

Next, being illustrated to the Method of printing based on readjustment (backfeed) function.

The ink-jet printer 100 of present embodiment has the function of reversely conveying continuous form X, imply that with it is so-called " time Conditioning function ".

(a) of Fig. 5~(c) is the printing side for illustrating to be utilized the callback function of the ink-jet printer of present embodiment The explanatory diagram of method.

For example, when stopping printing in midway, when then stopping conveying paper, due to to convey paper at a high speed, such as Fig. 5 (a) shown in, easily there is a situation where the non-type faces of continuous form X to generate blank sheet of paper part by printing portion 5.

At this point, according to the detected value of above-mentioned latching tractor encoder 32, for that can be beaten since unprinted start page Print, at least rotate backward the 1st draw rollers 2a and the 2nd draw rollers 2b, accordingly, as shown in (b) of Fig. 5, by continuous form X to The opposite direction conveying of conveying direction, stops behind the upstream side that the downstream side of at least homepage of blank sheet of paper part reaches printing portion 5.

Then, in the same manner as above-mentioned Method of printing, transmitter 9 issues conveying command M 1, forward conveys continuous form again X issues print command M4 according to a reference value M2 and detected value, starts to print after the time for having postponed length of delay.

At this point, as shown in (c) of Fig. 5, by beating printing initiating position (not from the blank sheet of paper part for having passed through printing portion 5 Printed page) start to print, it can be avoided waste paper.

Next, being illustrated to automatic paper feeding method of the invention.

Fig. 6 is the generalized schematic for showing the ink-jet printer of the automatic paper feeding method for present embodiment.

As shown in fig. 6, the ink-jet printer 101 of the automatic paper feeding method for present embodiment has: paper feed part (is not schemed Show), it configures by the continuous form X of Z-fold；1st draw rollers 2a, centre draw rollers 2c and the 2nd draw rollers 2b, are used for defeated Give continuous form X；1st latching tractor 3a and the 2nd latching tractor 3b, is used to determine the position of continuous form X；It beats Print portion 5 implements to print by print head (not shown) to continuous form X；Drying section 7 is used for the company by printing Continuous paper X implements drying；Discharge unit 6 discharges it after implementing Z-fold to continuous form X by folding machine 61；And Shell (not shown) is used for built-in above structure and is protected.

In the following, each structure is described in more details.

Paper feed part 1 is configured with by the position of the continuous form X of Z-fold.

Moreover, paper feed part 1 both can be set in shell, also can be set in outside shell.

1st latching tractor 3a is provided with a pair, and is set to the edge-punching P of the two sides of continuous form X and respectively corresponds. Moreover, a pair of 1st latching tractor 3a movement synchronized with each other.

In addition, the 2nd latching tractor 3b also structure having the same.

The structure of 1st latching tractor 3a and the 2nd latching tractor 3b are identical as well known technology respectively, have and are sticked in The latching of edge-punching P and the drive sprocket 32a that the latching belt with latching is driven to conveying direction.

Therefore, the 1st latching tractor 3a and the 2nd latching tractor 3b are by leading the 1st latching tractor 3a and the 2nd latching The latching insertion of lead device 3b is set to the edge-punching P of the two sides continuous form X, can determine the position of continuous form X.

In addition, drive motor 34 is installed by clutch 33 in the 1st latching tractor 3a, it is straight in the 2nd latching tractor It connects and drive motor 34 is installed.That is, driving the 1st latching tractor 3a and the 2nd latching tractor by drive motor 34 3b。

Moreover, the 2nd latching tractor 3b can vertically be moved by lifting drive (not shown), with from Latching, which is inserted into verge-perforated state, becomes the state for pulling out latching from edge-punching.

Herein, in the opposite side across continuous form X of the 2nd latching tractor 3b, paper detecting sensor 35 is installed.

The paper detecting sensor 35 has been capable of deciding whether continuous form for example, by the front end of detection continuous form X X。

In ink-jet printer 101, the pressing roller for clamping continuous form X is connected to the 1st draw rollers 2a, centre respectively Draw rollers 2c and the 2nd draw rollers 2b.

Herein, the driving devices such as cylinder are separately installed in the pressing roller, by the driving device, can disassembled and assembled freely in Corresponding draw rollers.

In addition, being separately installed with drive motor in the 1st draw rollers 2a, centre draw rollers 2c and the 2nd draw rollers 2b and (not scheming Show).

Therefore, it by clamping continuous form X between the 1st draw rollers 2a and corresponding pressing roller, is driven using drive motor Dynamic 1st draw rollers 2a, and, continuous form X is clamped between the 2nd draw rollers 2b and corresponding pressing roller, utilizes drive motor The 2nd draw rollers 2b is driven, continuous form X can be conveyed.

It is built-in with print head (not shown) in printing portion 5, implements to print to continuous form X by the print head.

Can be using string type record head or line-type recording head etc. as the print head, the viewpoint based on flying print is excellent Choosing uses line-type recording head.

Drying section 7 is to implement dry position to the continuous form X by printing.

It, can be after the exit since drying section 7 can implement drying to the continuous form X by printing before discharge The content for printing on regulation page is prevented to be transferred to other pages.

In addition, in the transport path of continuous form, due to drying section 7 be set to printing portion 5 and the 2nd draw rollers 2b it Between, therefore by making continuous form X in the state for being applied tension, drying equably can be implemented to continuous form X.

Paper discharge unit 6 is the portion discharged it after the continuous form X by 61 couples of folding machine by printing implements Z-fold Position.

Moreover, paper discharge unit 6 both may be disposed in shell, may also set up in outside shell.

In ink-jet printer 101, paper feed part the 1, the 1st is configured in order from the upstream side of the transport path of continuous form X Latching tractor 3a, the 1st draw rollers 2a, printing portion 5, intermediate draw rollers 2c, the 2nd latching tractor 3b, drying section 7, the 2nd paper drawing Roller 2b, paper discharge unit 6, therefore can be carried out efficiently aftermentioned automatic paper feeding.

Next, the automatic paper feeding method to present embodiment is illustrated.

Fig. 7 is the flow chart for showing the automatic paper feeding method of present embodiment.

As shown in fig. 7, the automatic paper feeding method of present embodiment is by the rapid S1 of step 1 described below, second step S2, the 3rd Step S3, the rapid S4 of step 4, the rapid S5 of step 5, the rapid S6 of step 6 and the rapid S7 of step 7 are constituted.

In the rapid S1 of step 1, by the edge-punching P of the front end of the latching insertion continuous form X of the 1st latching tractor 3a.

Moreover, the above-mentioned rapid S1 of step 1 is carried out by operating personnel.

Accordingly, the position of continuous form X is determined.

In second step S2, clutch 33 is connected, the 1st latching tractor 3a is driven with drive motor 34, conveys continuous paper Open X.

The 1st draw rollers 2a of pressing roller is not abutted, printing portion 5, has not been abutted at this point, the front end of continuous form X passes through The intermediate draw rollers 2c of pressing roller.

Then, after conveying continuous form X detects the front end of continuous form X up to paper detecting sensor 35, stop The 1st latching tractor 3a is only driven by drive motor 34.

In third step S3, the pressing roller being detached from is made to be connected to intermediate draw rollers 2c, draw rollers 2c and is pressed among this Continuous form X is clamped between pressure roller.

Then, continuous form X is downstream conveyed at a slow speed by intermediate draw rollers 2c.Although at this point, stopped to the 1st bolt The driving of tractor 3a is sold, but since clutch 33 is in connection status, by by intermediate draw rollers 2c that continuous form X is downward Trip side conveys at a slow speed, and continuous form X is applied tension.Accordingly, from intermediate draw rollers 2c to the 1st latching tractor 3a, Such as the continuous form X of printing portion 5 is in the state for being applied tension.

At this point, adjusting the abutting pressure for being connected to the pressing roller of intermediate draw rollers 2c, slide continuous form X, to avoid Intermediate draw rollers 2c excessively pulls out continuous form X.

In the rapid S4 of step 4, by the edge-punching P of the latching insertion continuous form X of the 2nd latching tractor 3b.

That is, intermediate draw rollers 2c upstream conveys at a slow speed continuous form X in above-mentioned third step S3, so that The aligned in position of the edge-punching P of the latching and continuous form X of 2nd latching tractor 3b.

Then, after the aligned in position of the edge-punching P of the latching and continuous form X of the 2nd latching tractor 3b, pass through liter Drop driving device rises the 2nd latching tractor 3b, and the edge of the latching insertion continuous form X of the 2nd latching tractor 3b is worn Hole P.

In the rapid S5 of step 5, by separation clutch 33, the 1st latching tractor 3a is made to be in state free to rotate, It is driven in the conveying of continuous form X.

Then, the 2nd latching tractor 3b is at least driven by drive motor 34, continuous form X is delivered to drying section 7, row Portion 6 out.

At this point, the front end of continuous form X passes through drying section 7 and does not abut the 2nd draw rollers 2b of pressing roller.

Then, after continuous form X being delivered to discharge unit 6, stop driving the 2nd latching tractor 3b by drive motor 34.

In the rapid S6 of step 6, in order to pull out latching from edge-punching P, draw the 2nd latching by lifting drive Device 3b decline.The 1st latching tractor 3a in state free to rotate is maintained the state of latching insertion edge-punching P.

In the rapid S7 of step 7, pressing roller corresponding with the 1st draw rollers 2a is set to be connected to the 1st draw rollers using driving device 2a makes pressing roller corresponding with the 2nd draw rollers 2b be connected to the 2nd draw rollers 2b using driving device.

Accordingly, continuous form X is held in the 1st draw rollers 2a and is connected between the pressing roller of the 1st draw rollers 2a, with And the 2nd draw rollers 2b and be connected between the pressing roller of the 2nd draw rollers 2b.

Then, by respectively driving the 1st draw rollers 2a and the 2nd draw rollers 2b using drive motor, it can be realized continuous paper Open the automatic paper feeding of X.

In the automatic paper feeding method of present embodiment, by implementing the rapid S1 of step 1, second step S2, third step S3, the 4 step S4, the rapid S5 of step 5, the rapid S6 of step 6 and the rapid S7 of step 7, can be avoided midway paper jam, swimmingly implement automatic paper feeding.

Even in addition, due to being applied tension, also can especially beaten inhibiting by the continuous form X of Z-fold In the state that print portion 5 generates chevron or the fluctuating of paddy shape, implement paper feeding.

The preferred embodiment of the present invention is illustrated above, but the invention is not limited to above embodiment.

For example, the ink-jet printer 100 of present embodiment has: paper feed part 1, backward pull roller group 8, the 1st draw rollers 2a, 2 draw rollers 2b, latching tractor 3, variable speed driver 4, printing portion 5, drying section 7, discharge unit 6, shell H, but backward pull roller group 8 and Drying section 7 and non-vital structure.

In addition, can also have intermediate draw rollers 2c, the 2nd latching tractor 3b, paper detecting sensor 35 etc. in turn, it is used for Above-mentioned automatic paper feeding method.

The ink-jet printer 101 of automatic paper feeding method for present embodiment has: paper feed part, the 1st draw rollers 2a, in Between draw rollers 2c, the 2nd draw rollers 2b, the 1st latching tractor 3a, the 2nd latching tractor 3b, printing portion 5, drying section 7, discharge unit 6, shell, but drying section 7 and non-vital structure.

In addition, can also have variable speed driver 4, backward pull roller group 8 in turn.

Moreover, can also have benchmaring sensor 31, latching tractor encoder 32 etc. in turn, for above-mentioned printing Method.

Above-mentioned ink-jet printer 100,101 is in addition to having the 1st draw rollers 2a and the 2nd paper drawing for conveying continuous form X Roller 2b etc. is outer, can also have other draw rollers in turn, can also have the roller for being used only for guidance continuous form X.

In addition, the paper guide portion for preventing continuous form X from falling can also be arranged along transport path.

In the ink-jet printer 100 of present embodiment, configured in order from the upstream side of the transport path of continuous form X Have: paper feed part 1, backward pull roller group 8, latching tractor 3, the 1st draw rollers 2a, printing portion 5, drying section 7, the 2nd draw rollers 2b, row Paper portion 6, but the allocation position of latching tractor 3 is not specially limited.

In the ink-jet printer 100 of present embodiment, it is provided with a pair of of latching tractor 3, respectively and the company of being set to The edge-punching P of the two sides of continuous paper X is corresponding, but a pair of of latching tractor 3 can also be connected to each other.

In the Method of printing of the ink-jet printer 100 of present embodiment use transmitter 9, but can also be used have it is general Logical central processing unit (CPU), arithmetic processing section, storage unit, image processing part, input/output unit (keyboard, display screen) etc. Computer substitute transmitter 9.

In the ink-jet printer 101 for the automatic paper feeding method of present embodiment, the 1st latching tractor 3a and the 2nd Latching tractor 3b is installed on identical drive motor 34, but can also be respectively arranged in different drive motors.

Industrial applicibility

Ink-jet printer of the invention and the Method of printing using the ink-jet printer, are used for through ink-jet mode to every It is provided with joint-cutting at one paging and two sides are provided with the purposes that verge-perforated elongated continuous form implements printing.

In addition, automatic paper feeding method of the invention can be provided with joint-cutting at each paging and set in two sides as utilizing It is equipped with verge-perforated elongated continuous form, the method for implementing automatic paper feeding to ink-jet printer uses.

Claims (9)

1. it is a kind of by ink-jet mode to being provided with joint-cutting at each paging and two sides be provided with verge-perforated elongated company Continuous paper implements the ink-jet printer of printing, wherein

The ink-jet printer has:

Paper feed part is configured by the continuous form of Z-fold；

1st draw rollers and the 2nd draw rollers are used to convey the continuous form；

Latching tractor is used to determine the position of the continuous form；

Variable speed driver is used to apply tension to the continuous form；

Printing portion is implemented to print by print head to the continuous form；And

Discharge unit discharges it after implementing Z-fold to the continuous form by folding machine,

The latching tractor has latching, by the way that the latching is inserted into the edge-punching, can determine the continuous form Position,

The latching tractor is made of the 1st latching tractor and the 2nd latching tractor,

2nd latching tractor can vertically be moved by lifting device,

The pressing roller having for clamping the continuous form is abutted in the 1st draw rollers, and drive motor is installed,

The pressing roller having for clamping the continuous form is abutted in the 2nd draw rollers, and the variable speed driver is installed,

Revolving speed of the variable speed driver by change the 2nd draw rollers, Xiang Suoshu continuous form application tension,

It in the transport path of the continuous form, is configured in order from upstream side: the 1st latching tractor, the 1st paper drawing Roller, the printing portion, the 2nd latching tractor, the 2nd draw rollers,

And then there is the backward pull roller group being made of multiple rollers for applying tension while guiding continuous form,

In the transport path of the continuous form, which is set to the paper feed part and the 1st latching tractor Between,

At least one roller in the backward pull roller group is equipped with backward pull roller variable speed driver,

The backward pull roller variable speed driver is equipped with the revolving speed of the roller of the backward pull roller variable speed driver by changing, to The continuous form applies tension.

2. ink-jet printer according to claim 1, wherein

The ink-jet printer has in turn for implementing dry drying section to the continuous form by printing,

In the transport path of the continuous form, which is set between the printing portion and the 2nd draw rollers.

3. ink-jet printer according to claim 1, wherein

The print head is line-type recording head.

4. ink-jet printer according to claim 1, wherein

Latching tractor encoder is installed in the 1st latching tractor,

In the opposite side across the continuous form of the 1st latching tractor, it is equipped with for detecting the continuous form Front end benchmaring sensor.

5. a kind of Method of printing using ink-jet printer as claimed in claim 4, wherein

According on the basis of the specific position of the benchmaring sensor continuous form detected a reference value, pass through The pulse for the latching tractor encoder that amount of movement with the 1st latching tractor proportionally exports is counted Obtained from detected value and be set in the printing length information of page 1 of transmitter, print start time is determined by transmitter, Print command is issued, the print head from receiving the print command is implemented to print to the continuous form.

6. Method of printing according to claim 5, wherein

The distance of the position printed since the preparation actually of the joint-cutting to the continuous form is set in advance, it will be in the distance Time needed for conveying the continuous form is added to the print start time, postpones and issues the print command.

7. a kind of Method of printing using ink-jet printer as claimed in claim 4, wherein

When the non-type face of the continuous form has passed through the printing portion, according to the detection of the latching tractor encoder Value, for that can be printed since the unprinted start page, by turning the 1st draw rollers and the 2nd draw rollers reversely It is dynamic, it is forward conveyed again after the continuous form is conveyed to the direction opposite with conveying direction, implements printing.

8. a kind of Method of printing using ink-jet printer described in any one of Claims 1 to 44, wherein

When the conveying speed of the continuous form is slowed down, with the resolution ratio implementation record before will slowing down,

When the conveying speed of the continuous form accelerates, with the resolution ratio implementation record after just accelerating.

9. it is a kind of by ink-jet mode to being provided with joint-cutting at each paging and two sides be provided with verge-perforated elongated company Continuous paper implements the automatic paper feeding method of the ink-jet printer of printing, wherein

The ink-jet printer has:

Paper feed part is configured by the continuous form of Z-fold；

1st draw rollers, intermediate draw rollers and the 2nd draw rollers, are used to convey the continuous form；

1st latching tractor and the 2nd latching tractor are used to determine the position of the continuous form；

Printing portion is implemented to print by print head to the continuous form；And

Discharge unit discharges it after implementing Z-fold to the continuous form by folding machine,

The 1st latching tractor and the 2nd latching tractor are respectively provided with latching, are worn by the way that the latching is inserted into the edge Hole can determine the position of the continuous form,

The 1st drive motor is installed by clutch in the 1st latching tractor,

It has been mounted directly the 1st drive motor in the 2nd latching tractor,

The 2nd latching tractor can move, with from the latching is inserted into that the verge-perforated state becomes will be described The state that latching is pulled out from the edge-punching,

In the opposite side across the continuous form of the 2nd latching tractor, it is equipped with for detecting the continuous form Front end paper detecting sensor,

In the 1st draw rollers, the intermediate draw rollers and the 2nd draw rollers, it is separately provided for clamping described continuous The pressing roller of the detachable of paper, and the 2nd drive motor is separately installed respectively,

It in the transport path of the continuous form, is configured in order from upstream side: the 1st latching tractor, the 1st paper drawing Roller, the printing portion, the intermediate draw rollers, the 2nd latching tractor, the 2nd draw rollers,

The automatic paper feeding method is made of following steps:

Step 1 is rapid, and the latching of the 1st latching tractor is inserted into the edge-punching of the continuous form,

Second step connects the clutch, the 1st latching tractor is driven by the 1st drive motor, described in conveying Continuous form detects the front end of the continuous form up to the paper detecting sensor, then stops the 1st drive motor Driving to the 1st latching tractor；

Third step, the pressing roller for being set to the intermediate draw rollers for making to be detached from are connected to the intermediate draw rollers, The continuous form is clamped between the intermediate draw rollers and the pressing roller for being set to the intermediate draw rollers, is drawn by the centre The continuous form is delivered at a slow speed downstream side by paper bowl, meanwhile, to from the intermediate draw rollers to the 1st latching tractor it Between the continuous form apply tension；

Step 4 is rapid, and the latching of the 2nd latching tractor is inserted into the edge-punching of the continuous form；

Step 5 is rapid, by cutting off the clutch, so that the 1st latching tractor is driven in the conveying of the continuous form, leads to It crosses the 1st drive motor and drives the 2nd latching tractor, the continuous form is delivered to the discharge unit；

Step 6 is rapid, and the mobile 2nd latching tractor is to pull out the latching from the edge-punching；And

Step 7 is rapid, in the 1st draw rollers and is set between the pressing roller of the 1st draw rollers, and the described 2nd It draw rollers and is set between the pressing roller of the 2nd draw rollers, clamps and conveys the continuous form.