CN1053617C

CN1053617C - Stylus-regulating method for prolonging service life of printing head in printer

Info

Publication number: CN1053617C
Application number: CN94117434A
Authority: CN
Inventors: 李解平
Original assignee: DESHI ELECTRONIC Co Ltd BEIJING
Current assignee: Jiangmen Dascom Computer Peripheral Co., Ltd.
Priority date: 1994-12-19
Filing date: 1994-12-19
Publication date: 2000-06-21
Anticipated expiration: 2014-12-19
Also published as: CN1116993A

Abstract

The present invention relates to a stylus withdrawal method for a printing head of a printer, which is designed for the purpose of extending the service life of a printing head. The stylus withdrawal method for a printing head of a printer comprises a stylus alternation printing method when a transverse line of a tab and a compensation printing method when the stylus breakage phenomenon occurs, namely that the automatic alternation of all styluses or partial styluses of a printing head are utilized to print a horizontal table line which is printed by a twelfth stylus and a thirteenth stylus originally and print stylus breakage data by the use of a normal stylus which is near a broken stylus. The method comprises the step that the number of the printing stylus of this time, the positive/reverse micro paper line number, the upward or downward printing data line number, etc. The present invention can extend the service life of the printing head by more than one time, the printing quality is not changed, and the printing speed is not influenced basically.

Description

A kind of impact printer go out the pin control method

The present invention relates to the print-out method of printer, relate to adjust the needle method that of printer prints pin or rather.

All kinds of printers of current popular are when printing transverse meter line, all be to adopt 1 fixing pin or 2 stylus printers seal, print with the 12nd stylus printer as single line, two-wire prints with the 12nd, 13 stylus printers, thereby through being usually used in the printer of duplicate printing form one class file, the pin number of times that goes out of its 12nd, 13 pin substantially exceeds other pins.Yet fix the service life of printhead, is generally 200,000,000 times/pin, and therefore the pin that often uses will wear and tear even rupture at first.

What the objective of the invention is to design a kind of impact printer goes out the pin control method, can use each root pin effectively, equably.

Method of the present invention is applicable to that 9 pins, 24 pins reach the printer greater than 24 pins.

The present invention's 24 needle type printers go out pin control promptly by turns the operating procedure of impact system be:

1) in printer, sets up the read-only memory EEPROM that the memory user is provided with, use guidance panel, pinwheel is set changes printing model;

2) start is printed the pin number of transverse meter line read last shutdown from EEPROM before, and is rotated to next pin number, and this pin number of printing transverse meter line is recorded among the EEPROM;

3) this is printed the pin number number n of transverse meter line and 12 works greater than, less than, equal comparison;

4) making normal data during n=12 handles and prints;

5) n＞12, calculate y=n-12, the reverse micro-paper feeding y line of elder generation, again tab dot array data 24 lines that read are made logic shift right integral body and move down the y line, the tab dot array data is adjusted printing once earlier from the 1st line to the 24-y line corresponding to y+1 pin to the 24 pins, forward trace paper feeding y line is got tab dot array data 25-y line to the 24 lines and is adjusted printing more once corresponding to 25-y pin to the 24 pins of printhead again;

6) X=12-n is calculated in n＜12 o'clock, reads tab dot matrix first line to X line data, prints once earlier to the X pin corresponding to printhead the 1st pin; Forward trace paper feeding X line is got whole 24 lines of tab dot array data and is done to move X time on the logical shift left; Again adjust printing once corresponding to the 1st to the 24-X pin to 24 lines from the X+1 line.

If 9 needle printers then change 24 in the

step

5,6 into 9, change 12 in the

step

3,4,5 into 5, and can this be extrapolated to the printer of any pin number.

Method of the present invention is a kind of method that printhead goes out pin of adjusting, and promptly the pinwheel of printhead changes impact system, promptly utilizes whole pins of printhead or part pin to print the transverse meter line that is printed by the 12nd, 13 stylus printers originally automatically by turns.Owing to be each the root pin that on average uses printhead, can prolong the whole service life of printhead effectively.Because the printhead price generally accounts for about 1/3 of printer price, therefore implementing this method has considerable benefit.

Further specify method of the present invention below in conjunction with STAR series impact printer (comprising AR3200, CR3240, CR3240-II, AR4400), implementation method comprises that 10 pinwheels change impact system and 24 pinwheels change impact system, and 10 pins, 24 pinwheels change impact system and all are applicable to printing tab horizontal line.

Fig. 1, pinwheel change and the broken needle compensation panel is provided with flow process

Fig. 2,10 pinwheels change the impact system operating process

Fig. 3,10 pinwheels change impact system and print the sample example, are made up of Fig. 3 A-Fig. 3 C

Fig. 4,24 pinwheels change the impact system operating process

Fig. 5,24 pinwheels change impact system and print the sample example, are made up of Fig. 5 A-Fig. 5 H

Referring to Fig. 1, printhead of the present invention goes out the selection and the setting of pin adjustment mode to be finished by the guidance panel button, and method of operating and process are shown in Fig. 1.

Each frame meaning is as follows: 101-is by the start of " online " and " Ullage between word " key; 102-chooses the function corresponding mode by " Song typeface key ", comprise conventional printing model (form horizontal line single line with the 12nd stylus printer print, two-wire prints with the 12nd, 13 stylus printers), 10 pins rotate printing model, 24 pins automatically and rotate printing model and broken needle automatically and compensate printing model; 103-puts the bright selected current state of online lamp by " slipping a line " key; 104-by " Song typeface " key, makes 32 * 16 indicator lamps bright if select the broken needle compensation way, again by the selected pin compensation way of " online " key; 105-print needle number, pin coding, p-wire and needle-like attitude inventory are determined needle break and broken needle thereof number; 106 set broken needle; 107-is by " dress paper/paper delivery/move back paper " key, selects preceding 12 pins or back 12 pins; 108-selects A, B, C by " Song typeface key "; 109-selects 1 or 2 or 3 or 4 by " Ullage between word " key, and A-1 to A-4 represents to select 1-4 pin or 13-16 pin, and B-1 to B-4 represents to select 5-8 pin or 17-20 pin, and C-1 to C-4 represents to select 9-12 pin or 21-24 pin; 110-selects online lamp bright or go out by " slipping a line " key; 111-judges to set whether finish; 112-is if the setting of 104-111 has been finished or after step 103, selected conventional the printing or 10 pin adjustment or 24 pin adjustment modes (using " Song typeface key " to light 24 * 24,24 * 12,32 * 32 respectively), by " online " key, preserve the Set For Current state, 113-withdraws from.

Referring to Fig. 2,10 pinwheels change and print is that a kind of part pinwheel changes printing, partly be adjusted to by the continuous two stylus printers seal between the 8th pin to the 17 pins as horizontal line the tab of former cause the 12nd, 13 stylus printers seal, promptly transverse meter line can on move 4 lines, on move 3 lines, on move 2 lines, on move 1 line or move down 1 line, move down 2 lines, move down 3 lines, move down 4 lines.

Each start, printer can be read the shift value of last transverse meter line and be rotated to next shift value and be shifted and print from ROM, the pin of promptly printing transverse meter line number automatically moves or moves down in order, so circulation endlessly, this mode does not influence print speed.On having, the transverse meter line that adopts part pin adjustment method to print moves or moves down the result, but the Chinese character invariant position in the form, thus character have on the upper side or on the lower side phenomenon with respect to the table line because deviation is very little, operating process shown in Figure 2 has been omitted forward and reverse micro-paper feed, does not correct this deviation.

Each frame meaning is among Fig. 2: the 201-start; 202-receives the print data code, calculates font address, reads the tab dot array data; Does 203-judge that current state is that the part pinwheel changes printing model? 204-reads the data shift value of last printing transverse meter line and is rotated to next value m from ROM, judge that the shift value m of current printing transverse meter line does with decision to move or move down; When moving on 205-does, 24 line data are moved m time on the whole, all repeat the 24th line data when being shifted at every turn, filter the first line data; When 206-moved down, 24 line data integral body moved down m time, all repeat the 1st line data when being shifted at every turn, filter the 24th line data; Assembly unit of 207-data and print processing; 208-result.

Shown in Fig. 3 A be corresponding 24 * 24 dot array datas tab that adopts 12,13 stylus printers seal+.Shown in Fig. 3 B be adopt 10 pinwheels to change to print and on move the tab that 4 lines print with 8,9 stylus printers+.Obviously when data are moved 4 times on the whole, all need repeat the 24th line at every turn, filter the first line data.Shown in Fig. 3 C be the tab that adopts 10 pinwheels to change to print and move down 4 lines and print with 16,17 stylus printers+, obviously when data integral body moves down 4 times, all need repeat the first line data, filter the 24th line data.

Referring to Fig. 4,24 pinwheels change and print is that the transverse meter line that former cause the 12nd, 13 stylus printers print is adjusted to and can be printed by continuous two stylus printers the 1st to the 24th pin.Start for the first time, printer can increase the pin number of printing transverse meter line automatically, and automatically between the 1-24 pin by turns, and the printing that makes two bites at a cherry.

Each frame meaning is as follows among the figure: 401 beginnings; 402-receives print data; Does 403-declare the current line character and is tab? the 404-normal data is handled and is printed; 405 1 read the preceding pin number of printing transverse meter line of last shutdown from EEPROM, and are rotated to next pin number number n, judge this pin number number n; 411-does normal data processing and printing if pin number number n is 12; 406-works as pin number number n less than 12, then calculates X=12-n, reads the tab dot array data; 407-gets tab the 1st line to X line data, prints once earlier to the X pin corresponding to printhead the 1st pin; 408-forward trace paper feeding X line; 409-gets on whole 24 lines of tab data and moves (logical shift left) X time; 410-adjusts printing once corresponding to the 1st to the 24-X pin to 24 lines from the X+1 line again; 412 1 work as pin number number n greater than 12, then calculate y=n-12, reverse micro-paper feeding y line; 413-reads the tab dot array data; 414-moves down y line (logic shift right) with tab dot array data 24 line integral body; 415-the 1st line is adjusted earlier corresponding to y+1 pin to the 24 pins to the 24-y line and is printed once; 416-forward trace paper feeding y line; 417-gets tab data 25-y line to the 24 lines corresponding to printhead 25-y pin to the 24 stylus printers seal once; 418-finishes.

In sum, 24 pinwheels change in the printing on the condition of shifting one's love be to move to arbitrarily continuous two stylus printers seal between 1-the 11st pin, 1≤n≤11 on the transverse meter line with 12,13 lines; The situation of moving down is that the transverse meter line with 12,13 lines is displaced downwardly to arbitrarily continuous two stylus printers seal between the 13-24 pin, 13≤n≤24.

It is the new print position n=5 (＜12) of transverse meter line when adjusting the pin number that Fig. 5 A-Fig. 5 D illustrates 24 pin adjustment methods, the tab when transverse meter line superior displacement number and micro-paper feed are counted X=12-5=7+the printing sample.

When Fig. 5 A was normal the printing, the tab dot array data was arranged and is printed sample.

It shown in Fig. 5 B the structure after moving on the tab dot array data when moving to the 5th line on the horizontal line with the 12nd, 13 lines.

Fig. 5 C is depicted as print result for the first time, gets corresponding printhead the 1st pin to the of tab the 1st line to the 7 line data 7 pins and prints once earlier, needs forward paper feed 7 lines to carry out the second time again after having printed for the first time and prints.

Fig. 5 D is depicted as and prints sample for the second time, with moving 7 times on whole 24 lines of tab data, adjusts printing more once from 8 lines to 24 lines corresponding to the 1st to the 17th pin.

The data of Fig. 5 C and twice printing of Fig. 5 D are merged be the data of adjusting when printing.

It is the new print position n=17 of transverse meter line (n＞12) when adjusting the pin number that Fig. 5 E to Fig. 5 H illustrates 24 pin adjustment methods, the tab when carry digit and micro-paper feed are counted y=17-12=5 under the transverse meter line+the printing sample.

When Fig. 5 E was normal the printing, the former dot matrix data arrangement of tab was printed sample.

It shown in Fig. 5 F horizontal line with the 12nd, the 13 lines structure after the tab dot array data moves down when being displaced downwardly to the 17th line.

Fig. 5 G is depicted as and prints sample for the first time, and earlier reverse paper feeding 5 lines move down 5 lines with tab dot array data 24 line integral body before printing, and its first line to the, 17 lines are printed once earlier corresponding to the 6th to the 24th pin.

Fig. 5 H is depicted as and prints sample for the second time, and first forward paper feeding 5 lines before printing are got tab data the 20th line to the 24 lines and printed once corresponding to printhead the 20th pin to the 24 pins again.

The data of Fig. 5 G and twice printing of Fig. 5 H are merged be the data of adjusting when printing.

The trial state of this method shows: implement method of the present invention and can prolong the printhead bulk life time more than one times, print speed is constant substantially, and print quality does not have any change.

Claims

1, a kind of impact printer go out the pin control method, it is characterized in that 24 pinwheels change that to print transverse meter line be to take following operating procedure:

4) making normal data during n=12 handles and prints;