JPS6083876A - printer - Google Patents

Abstract

PURPOSE:To eliminate the loosening of a printing ribbon, by feeding a small amount of said ribbon when the feed-out side position of the part, used in the printing of the previous line, of the printing ribbon is present near to the side of a printing ribbon wind-up part as compared with the wind-up side position of the part used in the printing of the next printed line. CONSTITUTION:A means for storing a printing ribbon feed-out side position nearest to a printing ribbon feed-out part at the part, used in the printing of the previous line, of the printing ribbon and a means for calculating and storing a wind-up side position nearest to the printing ribbon wind-up part among parts used in the printing of the next line in the printing ribbon are provided. When the feed-out side position is present near to the side of the printing ribbon wind- up part as compared with the wind-up side position, a small amount of the printing ribbon is fed to remove the loosening of the printing ribbon generated during the shifting into a new line.

Description

[Detailed description of the invention]

TECHNICAL FIELD The present invention relates to printers, and in particular to printers that use one-time printing ribbons, such as thermal transfer ribbons and carbon ribbons, in which the same location is not printed multiple times. be. There are two types of prior art printers: one in which the printing ribbon cassette moves along with the 111-character head while being supported by a carriage, and the other in which the printing ribbon cassette is mounted on the printer body and does not move. Although the printer according to the present invention succumbs to the latter, conventionally, in this type of printer (when using a one-time printing ribbon, the printing ribbon is stretched between the printing ribbon feeding section and the printing ribbon take-up section). Printing via saw printing ribbon 71
After printing 11 lines from c, 21 lines are equivalent to one line? ) Length or sending was done. Therefore, printing is not performed from one line to f;1;, and if there is a space of a certain length on at least seven ends of one line, this space R1 (equivalent to minutes) is printed. The length of the printing ribbon ends up being wound up by the take-up section without being used, resulting in a disadvantage that the printing ribbon is often wasted. It has a 7 + buffer angle and is stretched between the printing ribbon feeding section and the printing ribbon winding section without temporarily remembering the printing data supplied from the first part device. After printing one line of printing via the printing screen 21ζ, the ribbon feeding device feeds the printing ribbon.
The purpose of this invention is to provide a printer that can avoid as much as possible the printing ribbon from being wound up unused in the C printer, and can use the printing ribbon effectively. It is. Structure of the Invention In order to achieve this object, the printer according to the present invention has the following features:
As shown in FIG. 1, the external devices, the buffer mains, the print head and the ribbon feeder! In addition to A position, (d
) A means for recording the feed-out side position closest to the print ribbon feed-out part of the part of the print ribbon used for printing in the previous line; ) of the portion used for printing is also located on the winding side closest to the printing ribbon winding section; means for calculating and storing δ; , 1. If the printing ribbon is on the feeding side, feed the printing ribbon until the feeding position is adjacent to the winding side position, and then move the printing ribbon so that the feeding side position is adjacent to the winding side position. If the printing ribbon is closer to the winding section of the printing ribbon than
fffll control means. The operation and effect of the invention are as follows: In the printer ram 22 Job>, the execution of the next line to be printed starts from the feeding side position of the part of the printing ribbon that was actually used for printing the previous line. The side position of the part used for printing on the first side is printed, jζnO;
? ! As long as it is close to the 5-receiving section, the printing ribbon is fed by a minimum of 1 ql of W so that it can be used without waste. Also, please note that the position of the part of the printing ribbon on the feeding side used for printing in row 11 of 1) is lower than the position of the part of the printing ribbon on the winding side that will be used for the actual printing of fT to be printed next. If the 1ζ ribbon is on the take-up side, the printing ribbon does not originally need to be fed, but in this invention, even in such a case, the printing ribbon can be fed in a predetermined small amount. It will be done. This was adopted based on the fact that the printing ribbon stretched between the printing ribbon delivery section and the printing ribbon take-up section is likely to be loosened to some extent during line breaks, etc. This is a measure to prevent printing defects caused by sagging of the printing ribbon by feeding the printing ribbon a small amount at the time of line feed to remove the looseness even if feeding of the printing ribbon is not necessary. Example: Hereinafter, an example of the present invention will be explained based on the drawings.
Explain to ill+. FIG. 2 is a perspective view showing the main parts of the mechanism of a thermal transfer printer. In the figure, numeral 10 is a platen, and the shaft parts protruding from both ends of the platen are rotatably supported by the frame of the printer (not shown). , it is rotated by the paper feed motor. A guide bar 12 having a rectangular cross section is arranged parallel to the platen 10, and a carriage 14 is slidably supported on the guide bar 12. This carriage 14 serves as a print head.
The thermal head 1G is aligned with the guide bar 12 and moved to the print line on the platen 10. It is designed to move along. The guide bar 12 is connected to the ti-! by a frame (not shown).
The lever 18 fixed to one end of the lever 18 is connected to the plungers 1 and 24 of the head release solenoid 22 via another lever 20. The lever 18 is biased by a spring 26 to rotate counterclockwise in FIG. Although it is sagging,
When the head release solenoid 22 is energized and the plunger 24 is retracted, the spring 26 is moved away from the platen 10 against the force of the spring 26. A printing ribbon device 28 is provided adjacent to the platen 10. This device 28 is a supply side ribbon cassette l-
30, the winding side ribbon cassette 32° ribbon feed motor 34 etc. are mounted on 01. Supply side ribbon cassette I/30
The take-up ribbon cassette 32 is exchangeably supported by a frame of the printer (not shown), and the printing ribbon 36 pulled out from the supply ribbon cassette 30 is stretched along the direction of one heave of the platen 10. After
Winding measurement Honka Nanado 32 will be wound up.
Yes, it is true. Of course, in the case of unfaithfulness, the supply side is
The gutter 30 feeds out the printing ribbon of the printer (11
1, and the winding-side ribbon cassette 32 constitutes a printing lidon winding section. Further, the ribbon feeding motor 34 is fixed to a frame (not shown), and a gear 38 fixed to the output shaft of each ribbon feeding motor 34 is also rotated by the frame. 1+, fixed to the shaft 40! :Nigi・1・
Rotate the ribbon feed shaft 40 via 42.
From this, the feed roller and the take-up spool, which are installed in the take-up side ribbon cassette 32 at an angle of 11 degrees, and the take-up spool are rotated four times.
The printing ribbon 3 (5) is wound up onto a right-handed spool as the printing ribbon 3 (5) reaches a predetermined length. In this embodiment, the ribbon feeder 371. The feed l'l provided on the shaft 4() and the winding side ribbon cases 1 to 32 -
The ribbon feeding device is composed of the rollers. In addition, the printing ribbon 3 stretched between the above-mentioned supply side ribbon cassette 1" 3 fl 1 and the winding side ribbon force 32 (i stands for the key 4, the ridge 14, and the rotation Φl)
゛, It is possible to support 1.1 or Hongai l”44.4G4
Hey there. It is designed to pass between IO and IO as shown in (14f: (Iiii)). The printer that I bought also has the electronic circuit shown in the L, No. ((Figure 1)
1. There are many people who want to be controlled. Figure wise 5
0 is St. Fulp IJ Sessing! , knit (hereinafter referred to as C
I) [J and 1st name - 3°ru), and Lee 1 only no mori (TS, bottom, abbreviated as ROi171>524
;Yo and Rankum Akuj! Sume “L-ri” (hereinafter referred to as RA)
(abbreviated as M) 54, Ma Iku l; J Combi J,
- C12. Durham has fixedly written down 1.
α is -l, and r<ΔM 54 -, y F position register 1. , Yu5 ti, i'ji row right 511□
'+ 1-' 7 Star 53° Next row left end register [io
, next line right θ11, ) register 62° last end 1 response register (j4. to X register 66. register G8, 1) register 69. In addition to each ribbon feed amount register 71 and other ribbon feed amount registers 71, a ribbon feed amount register 71 and other ribbon feed amount registers 70 are provided. The contents to be written in each of the above registers will be made clear later along with the explanation of the function.
3 (is printed; j: n 3 [; of the part actually used to print +1ijfF)! + Positioning of the feed closest to the printing ribbon feed section: ! Write down 51 1. The next 11 left end reso star 60 is provided as a shift means, and the next 11 left end reso star 60 is located on the printing ribbon 3 ti (the part closest to the printing ribbon winding part among the parts actually used for printing J-6th 11th It is provided as a second stage to record the winding side position.Furthermore, the Hanofup memory 70 is
It is used to temporarily store the print data corresponding to a part line.
If it is set as address 1, up to 4 (+80 locations) can be provided. The above CI) U 50 contains print data, -J rope 1, 5 characters, characters representing symbols, symbols 1- and spaces. Supplying space coat to the printer ``J'' is connected to the human power unit 72 as an external device. -, Trinoji transfer motor Dry Huff 8. Paper feed motor 1' Rhino 80. Ribbon feed motor 1' Rhino\
Each driver circuit of 82 AIl is connected, and each of these driver circuits is connected to the thermal, ＼no IIG, hend release solenoid, and 22. Carriage transfer motor 84. Paper feed “1”
': Drives the motor 86 and the ribbon feed motor 34. That is, in this example &J:
The CPU 50, the ROM 52, and the ribbon feed dryer 82 constitute a control means for controlling the ribbon feed device, which is mainly composed of the ribbon feed motor 34. Next, the operation of the printer of this embodiment will be explained using the printing shown in FIG. 4 as an example. In FIG. 4, the portion indicated by the C cross line is the portion where printing is actually performed at the back of each print line, and the portion marked by the line N111 and J'X is the space portion. Further, the arrows marked 11"?I along each solid line indicate the printing direction, and the broken line indicates that the printing ribbon 36 is fed in parallel to the break j-1. In the printer of this embodiment The power supply is installed:
γ, I't' A M 54 head position register 5 [
j (bb each register and buffer memory 7
0 is cleared. Then, when a command to start printing is issued from the human power department 72, the CPU
50 reads the print data to be printed on the first line from the print data previously stored in the input section 72 according to the program stored in the ROM 52, and transfers it to the buffer memory 70, and also transfers it to the buffer memory 70. The thermal head driver 74 and the carriage transfer motor dry huff 8 are controlled based on the printed data, and the thermal head 1'1G and the carriage transfer motor 84 are operated to print the first line. The program for printing is well known, and since it is not directly necessary for understanding the present invention, explanation number 1 will be omitted, and only the portions related to ribbon feeding will be explained below. When the first line of print data is sent to the buffer memory 70, a program as shown in flowchart 1 in FIG. 5 is executed. First, the value stored in the first row 316, second row - Cθζ row Iroshi 1゛1°1 register 626, and the 3'J value is stored in the previous row right end register 5B-1.
It's a big deal. At the clearing stage, each register has been cleared as described above, and the next line is 0).

[0], therefore, the previous row A1 end register 58 has

[0] is loaded into Fi-. Next, step S2 is executed, and the destination 'Jf(area 4001) of the buffer memory 70 is stored in the X register 66, and in the next step S3, The print data stored at the address specified by `` is written into the A register 68.Next, in step S4, it is determined whether the print data written into the A register 68 is a space. However, as is clear from Fig. 4, the left end of the first line is not a space), the result of this judgment is NO, and the program execution continues at step S.
Move to 6. In step 33G, the value obtained by subtracting the leading address of the buffer memory 70 from the numerical value stored in the X register [i (i) is stored in the X register as 1!
, but at this stage, the first 1jn address has been written to the X register 66], so the result of this subtraction is

[0] and 6 in the X register

[0] becomes obsolete. Next, in step Gomushi 7, the numerical value written to the X register 66 is
In step S If, the final address of the buffer memory 70, into which the last print data of the first line ζ is written, is stored in the X register 6G. As is clear from FIG. 4, in this embodiment, 80 characters are printed on one line, so the X register 6 f
i (4080) is written, and in the subsequent step S9, the print data at the address specified by this X register is written into the A register (i 8 L).
(It is determined whether the print data stored in this Δ register 68 is space -1-1 or not.
However, as is clear from Figure 4, the right 11i of the first row!
If 11 is not a space, the result of the judgment is N (, l, nari, real ma of PCI Kurano 3) GJ Step S] Go to 2. In step S12, the X register 66;
1: The previous J1 address (4001) of the buffer memory 70 is subtracted from the written number (1η (4080), and this difference r79] is written to the X register 66, and in the next step SI3, this The value in register 6G is moved to the rightmost register 62 on the next row. Next, step S
l, I, front right θj1.1 position, Zunawara! i:
j In step S1 of i pieces, 11 (numerical value written into

[0] is stored in the D register 69, and in the next step S15, your D
From the contents of the register 69, the left end position of the next row is determined, and in step S7, the next row left θj;
entered numerical value

[0] is subtracted, and the Z block (0) is stored in the 11 block D register 69. Then, in step SiG, this D register 6
A determination is made as to whether or not the content of 9 is greater than zero, but since the determination result is No, the program execution moves to step S20, where the feed amount is predetermined as the amount equivalent to one character. Rin 1ζn sending instep [5] is ribbon" Then, in step S19, 1? The ribbon feed amount register 7N is indicated. The old [5] ribbon feeding was executed and dirt 4. Z, l,
-1, printing ribbon 36 just installed in the printer
Even if there is some looseness in the IG
ffij〆portrait. After the above-mentioned second program is executed, the first line is printed as described above, but once this printing is completed, the second line of print data is subsequently sent from the manual section 72. Buffer memory 70... is transferred. Then, in the same way as in the case of the first line, the program indicated by the box 1-char 1~ in FIG. The right end position is [79], which is 1 written into the next row right end register 62 in step S13, as described in 1111. Furthermore, since the print data written to the A register 68 in step S3 is space code 1-' as is clear from FIG. 4, the determination result in step S4 is
Therefore, the execution of the P1 program moves to step s5'\, the value in the X register 66 is increased by 4J to [1], and the execution of the P1 program returns to step s3. Below, the same thing happens repeatedly while the space tot continues, but the specified pulse of the X register 6G is (,10
41), the print data stored in the A register 68 in step S3 is no longer a space code, so the ``1'' determination result in step S4 is No.
Therefore, the execution of the program II should proceed to step s6. In step S (i, the destination HrB address (,iot+n) of the buffer memory 70 is subtracted from the a value (40 old) stored in the X register 66, and the difference [4o] is stored in the X register 6 [i; 1 is loaded. Next, in step S7, this value (4 (+)) is loaded into the next row left '711+j register 60. Then, in step s8, it is stored in the X register 6G to the sofa memory 7 ( ] is filled in, and in step s9 the final address (/1080) of "ζ" is stored in the X register [i (i
The print data at the address (H2O2) of the buffer memory 70 specified by is sent to the A register 68, but as it is clear from FIG. The result of the determination is yrs, and in step S]1, the value in the X register 66 is decreased by (1), and the execution of program 1.1 returns to step s9. Thereafter, the same process is repeated and it is determined whether or not the print data is a space code one by one from the right side 1 to the left side I'TitJ of the second line. If the address becomes (4075), step SI
The determination result of O is No, and the program execution moves to step S12. In this step S12, from the numerical value [4o75] written in the X register [;6] to the buffer memory 7
0 is subtracted from iII′i (4001), the difference [74] is written to the X register 6G, and then in step SI3,
74] is moved to the right end register 62 in the next row 4). Continued Itestesop S14. S15. SI6 is actually i], but in this case, the right end position of the previous line is [71 (] te I) l, the next I j/I','I;11; position (40]
``CA'J 2.+, Step 5l (The result of the judgment of i is)'' E S, and the difference between the two is (3!J) (, 2 (l) 1.2). (J added to the number (ll O) 1 sentence - 7 minutes / 10 j Young: 1: [5
] Ill il 'U Press the button to print 9 pages fast.
11. The result is 1] L. Sosuk (Go to 9;
J1. Ru. Then, the contents of C1 and this one value are transferred to step SI8' (ribbon feed amount and step 1), and the next step is executed. Subsequently, the printing is performed from the part immediately after ``(the second fi printing is done, J<n;) 6, the printing G of the collection J is actually used/))], 2 and a line break) ``J'' means 1 printing line per 1℃ relation ゛no printing ribbon 3
Compared to m5, which sends
:4 print ribbon or knot i,! It becomes 4] this 7. From now on, in the third row 1. -) and b each f-i is printed)--
Rika Buff-I];su7 (+ 6 was transferred to Figure 5 So1, 1-cheat-1° (7J (ZubL:]g') h was executed 5r) A.4, 3'51 result, 3rd line is printed first "7.-, + is 1iii line, that is, the right t'l of the 2nd line; from A+ position [74] to next il
, Zuno (wa 4)th: (left end position of f+

[0] The number obtained by adding [1] to 111") [74) after subtracting the evening [75]
Corresponding to the character "4", the print ribbon 3 fi or sent Z) is 6 degrees.Also, when printing the fourth line, the right end position of the third line [19] is set in step S15.
The 41st F0) left end position (20) is subtracted from
I [i's ゛1'1j result is No, and step S20 O, ■, HisuanozoS l! ] is executed, and the printing ribbon 3 (i +', l: LJ for I characters is sent. Also, step S l [i is also judged in the judgment of Since the result is NO, the printout is sent to 21, N; (which is still one character G).
The publication judgment old result of step S1 [] performed before the 11th character is Y 1? , S, so the printing ribbon;) 6 is fed the length of 0 characters with two trowels 8). As is clear from the following explanation, in the printer of this embodiment, the printing ribbon 30 is fed as necessary to actually perform printing, but there is always an unused portion or [
;- Because it is not printed in the forward direction as in the first, fourth, and fifth lines in Figure 4, the printing is not only in the forward direction, but also in the second line,
It's possible to do it in the opposite direction to the third and sixth lines.). In addition, if the part of J-Jin 36 that has already been used for actual printing is to be used for additional printing, or to ensure that there are no mistakes, there is no need to send the printing ribbon 3G. Teagego is also predetermined a t, 2 quantitative (untrue J
In the iiffi example, the printing ribbon 36 is fed by a distance corresponding to one character (j 箆 さ), and as a result, the printing ribbon 36 is fed by the thermal line ``l''l (along with i, the printing paper When a book is pulled from the paper, a tensile force is applied to the portion of the printing ribbon 36 that is welded to the printing paper, and the spool in the supply side ribbon force set 1 to 30 is rotated by the tensile force. Even if the printing ribbon becomes slightly loose due to the printing process, etc., this slack will be automatically removed 1°) before the start of the next printing. (Due to the drooping of i, a part of the terminal F I (i) comes off from the printing ribbon 3G, and the upper part of the characters and inscriptions are not printed. This prevents the so-called printing failure from occurring. Hereinafter, one embodiment of the present invention has been described in detail, and this is literally an example, and the present invention is not to be construed as limited to this.For example, - In the above embodiment, the printing ribbon 3G is fed from the right end to the left end of the print line, but it is also possible to send it from the left end to the right end. The second embodiment shows an example in which the present invention is applied to a thermal transfer printer, and the effect of the present invention is demonstrated because thermal transfer ribbons are particularly susceptible to loosening during line breaks, etc. The present invention may be particularly noticeable, but it is also possible to apply the present invention to printers that use other tights or printing ribbons such as carphone ribbons.Furthermore, in the embodiment described in "-", all print data is input in advance. However, even if printing is performed in parallel with the manual input of print data from a keyboard, such as a so-called typewriter, 1" 11 character lines The present invention can be applied to any type of ribbon that is written in a buffer anomaly, then printed after it has been moved.Furthermore, the program for determining the feeding amount of the printing ribbon is also the same as that of the above embodiment. Of course, the present invention is not limited to the following, and the present invention can be implemented with various modifications and improvements based on the knowledge of those skilled in the art.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the configuration of a printer according to the present invention. FIG. 2 is a perspective view of a thermal transfer FF type printer, which is an embodiment of the present invention, with the mechanism section not shown. FIG. 3 is a block diagram of the electronic circuit of the printer. Figure 4 is an explanatory diagram that diagrammatically shows the culture printed by the same printer, and Figure 5 is a flowchart that extracts the forces related to ribbon feeding from the program that controls the operation of the printer. 1. 10 Nibraten 12: Kaidoha J4: Carry, Ji 16: Thermal head 28: Printing ribbon device 30: Supply (Printing ribbon ■ Extrusion: r++) 32; Take the side ribbon spool, 1. (Printing ribbon φ, Il
[I! 34: Ribbon feed motor 36: Mark'j-110: Ribbon feed shaft 50: Central processing unit (c) 1lLJ
) 52: Read-only memory (ROM) 54: Random access memory (RAM) 58 2nd previous row right end register fi O: Next row left αj) 1 Lujister (j2: Next row right θj1 [Lujistor 69: I) Register 7I: Ribbon feed Quantity register 72: Input section Σ(2
; Ribbon feeding Mokdreich Applicant: Brother Industries, Ltd. Agent, Patent attorney: Nori Kazuhiro Kambe, 11. ．． 1 (2 idiots):,,' Figure 4

Claims (1)

[Claims] It has a sofa memory that temporarily stores print data supplied from an external device, and prints via a printing ribbon stretched between a printing ribbon feeding section and a printing ribbon winding section. In a printer in which the printing ribbon is sent by a printing ribbon feeding device after printing one line by the head, the feeding side position closest to the printing ribbon feeding part of the part of the printing ribbon used for printing of the previous line. Write down 1. a means for calculating and recording a position on the winding side closest to the take-up portion of the printing ribbon in the portion of the printing ribbon to be printed on the next line; If the side position is on the printing ribbon feeding side compared to the winding side position, the printing ribbon is fed so that the feeding side position is adjacent to the winding side position, and the printing ribbon is moved to the feeding side position. and control means for controlling the printing ribbon feeding device so as to feed the printing ribbon in a predetermined amount when the printing ribbon is located closer to the winding part of the printing ribbon than the winding side position. printer.