JPS6041878A - Polychromic transfer type thermal recording device - Google Patents

Abstract

PURPOSE:To reduce the positional deviation of transcription of a line thermal head by detecting the quantity of feeding of recording paper from the angle of rotation of a guide roller provided in each recording section, and controlling the deletion or insertion of picture information for 1 line share of the recroding section. CONSTITUTION:A controlling pulse generated in a driving controlling section 50 operates a drive roller driving circuit 51 to perform the feeding of paper, and at the same time, counted by a counter C0 and the counted value is added to a paper feed quantity calculating circuit 52. On the other hand, each recording section is provided with a guide roller having a rotation angle detector 300 and the number of pulses proportionate to the amount of rotation is added to a counter C1 and counted. Actual quantity of paper feeding is calculated from the counted value and added to a comparator 54 and the difference from a reference feeding quantity is determined. This differential output is added to a thermal head driving circuit 55, and printed after correction such as deletion or insertion for 1 line share of picture information is made by the thermal head.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to thermal recording (≠ device i') of transfer mold J, and particularly to a line-in-thermal head and a line-in-thermal head.
A color transfer 101 consisting of a corresponding ink donor film, a pack roller, and a puck roller; i ff! b
It has a recording section for two or more colors, and each recording section transfers the image information of the corresponding area independently.In addition, by combining each color transfer image II'f information, it is possible to create a multicolor document. Fl:J
The present invention relates to a multicolor transfer type thermal recording device that performs recording.

[Prior art]

FIG. 1 is a schematic diagram conceptually showing an example of the configuration of a conventional multicolor transfer type thermal recording device. The device iq l'J, u・f
Thermal head 1 (), back roller 11. A thermal color transfer thermal recording section 1 ( ) 0 consisting of a black ink donor film (hereinafter referred to as 1, t, to color I I) p') 12, a supply roller 131 of the black IDF 12, a take-up roller 14, and a drive roller 15; , Line the Full Head 20.
Bat crawler 21. Red ink donor film (hereinafter referred to as red IDF) 22 Supply roller 2 of the red IDF 22
This is a red (2-color transfer type 11.jij) 7.1'-recording device comprising a 32-winding sheet roller 24 and an r-live roller 25.

111 line thermal head] 0” and 20 are 1
',! , l are connected to a pressing mechanism (not shown), and are pressed against the roller 11 and the back roller 21 via the black IDF 12 and the red IDF' 22 at the start of recording.

At the same time, the W, color IDF 12 and red IDF
22 (conveyance is also opened and the black IDI 12 and red IDF 22 are connected to the line removable head 10 and back roller 11 of each recording section, and the line thermal head 20 and back roller 211t;
the respective supply rollers 13 and 23 while being conveyed
The film is sequentially wound up on winding rollers 14 and 24 from iL.

On the other hand, the company recording paper P ((
When the 9-color feed starts, the black IDF of the black recording section 100 is first read.
12, and is supplied between the back rollers 11. Thereafter, the previous recording paper P is brought into close contact with the black IDF 12 that has been conveyed in advance as described above.
) F 12° It is conveyed between the back rollers 11. At this time, the ink of the black IDF 12, which is melted at the required heating point of the thermal heater 10 that is selectively driven according to the black image information of the predetermined document, is transferred onto the recording paper P. Only black image information is recorded. The recording paper P on which the black image information has been recorded is then transferred to the red recording section 200.
The red IDF 22 and the pack roller 21 (fil) are also conveyed here in close contact with and in synchronization with the red IDF 22 being conveyed (similar to the black recording section 100).

At this time, the thermal head 20, which is selectively driven in accordance with the red image information of the predetermined original, transfers the red 11)Ii' 22 or 111m ink that is melted at the Vν heating point. Therefore, on the recording sheet I), two-color information 9 is recorded by combining the previously transferred iL color image information and the red color image information.
'11 The paper is ejected to the paper tray 3, like this.']
, Translation of 1ν number of different colors 9-￥ l:'Y+hot note τ1
Some of them are arranged in a row, and the F support is '1. Note: Part 1 of L-part meal
, 1 effect l 1 1 degree 7L is transferred sequentially by Pi and the transfer of the rising color is carried out independently. '1 Recording j Q was performed and multicolor transfer type thermal sensitive 1.11 recording device irl"
In order to keep the recording section 'f1 in good condition, ii! in the above-mentioned recording section. Is it possible to prevent the transfer position of ink? Kffi is λ. However, when I first arrived at the office, the first step was to transport the ink donor film in the recording department. j''Drive roller - (minor in the manufacturing process/'?: ('f: door;
Yo? It is easy to change the color and stain state or the IDF supply loan's part 6, or the secret sheet 9, etc. is 11
Because of the difference between the recording units, the color ink is different from the color ink (
：P position error occurs and the recording quality at this time is markedly jFl
It has the disadvantage of sleeping.

[Purpose of the invention]

The present invention has been made to eliminate the above drawbacks.)
To obtain a recorded image of good quality by correcting the transfer position frc deviation of each color ink in the front N11 even when there is a difference in the amount of conveyance of the recording paper that falls into each recording section due to the above-mentioned factors. The purpose is to provide a multicolor transfer type thermal recording device that can perform the following steps.

[Structure of the invention]

Therefore, in the present invention, l[
Each 1F color roller that rotates in accordance with the movement of the recording paper conveyed through each recording section is newly arranged on the fixed passage path, and the corresponding guide roller is also installed on the rotating shaft of each guide roller. 1f'1 inversion angle is the above-mentioned f'f! Each guide roller 1jjl rotation angle detector capable of detecting the rotation angle with accuracy equivalent to J"fk small feed in the sub-scanning direction of the paper is installed. The feeding speed of the recording paper is compared with the feeding speed Ctl') of the standard for which the feeding speed M is set in advance, or the feeding speed Ctl') when the feeding speed Ctl') of the recording paper is based on 1 of another recording section. By deleting or inserting and printing one line of image information to be added to the line thermal head of the recording unit when the feed amount increases or decreases by the minimum feed amount in the sub-scanning direction, the transfer ink in each of the recording units can be printed. The positional deviation is corrected to maintain good recording quality.

[Embodiments of the invention]

Embodiments of the present invention will be explained in detail below based on the attached drawings. FIG. Components that perform the same functions as those of the conventional device (・It 4) are designated by the same sign.The device of the present invention includes a black recording section 1 (+ (+) and a thermal head for each of 200 l(), the pack roller 11 and the thermal head 20. In the recording paper passing path just before the pack roller 21, &1 front 1114 are brought into contact with each other in a manner to sandwich the recording paper P in a direction perpendicular to the conveying direction of the recording paper P. Guide rollers 30 and 40 consisting of a pair of rollers are newly installed, and these guide rollers 30 and 40 move according to the movement of the paper P conveyed between them. These guide rollers 30 and 40 are arranged to rotate.Therefore, the guide rollers 30 and 40 are the third (a) and (3).
b) As shown in (FIG. 3(b) shown in FIG. 3(a) - A-A section view of the f-id roller 30), the core roller 31
The rubber material 32 is wound around the
and (d) (FIG. 3(d) is an n-B iJi cross-sectional view of the guide roller 30' shown in FIG. 3(c). As shown in FIG. When the recording paper P is conveyed, the i1 is inserted into the recording paper P.
Use a structure that allows rotation without causing slippage.

1. In the present invention, each of the guide rollers 30 and 40
Guide roller rotation angle detectors 300 (1>3, see Figures (,) and (c)) and 4 (with reference to 10 b) are attached to each of the rotating shafts 35 and 45, respectively. in 4
MGl) is a concrete example of the guide roller rotation qlH angle detectors 300 and 400 (see Figure 1), which is constructed using a well-known incremental shaft encoder. Transparent parts and opaque parts are formed at a uniform pitch.
The rotary plate 3 (11 is in front n(
1.) Nofidroller 30 and 400 times! When the light emitting element 302 rotates, the light emitted from the light emitting element 302 also irradiates the fluorescent element 3 () 4 when the light is received by the light receiving element 304 via the rotating plate 301 and the slit (13). According to the output of the rotating plate 3010 rotating needle
A ♀/♀ pulse train as shown in Figure (1)) is generated.

Therefore, this receiver -)'(:element 304)FI'';-yt
By counting the cods, the rotation angles of the idle rollers 30 and 40 can be detected.
', Q', '4 calculation:i, the above-mentioned tt1. : You can roll +1 + 1 for the year p of river paper P. By the way, each guide roller rotation square cedar 1 output device 30
0,40'0 is the detector 300 for the reason mentioned above.
, 4 Q (guide roller 30.4
The minimum sub-scanning feed Lj of the recording paper P of 0 is 4 times corresponding to 1 line, and the component force that can detect less than the angle is
It must be positive and must be V↓. For example, 1) i7 record, eupo small side foil - feed), 1 is □shi [gate] and at this time each guide roller 3 (1, 4 +, l's 7) + 20 [open]
(In other words, each guy 1' roller 3 (1,400')
When the circumference is 20π [gate], the 10th equation % equation %: 360 can detect θ = 0.477° or less. (=-) 22117 times use 0.477° axis or above. Next, 17fl fil; Correction of positional deviation of bow copy/ink in the famous recording section jF, , '1
rll 11ii1's (Shigeko l(, I, I, Ikigon Kyurokuto 10 ()) will be explained and explained as an example. ;1's 5['<
l is the book ζ1.

Ming's multicolor i poem: f'172'l, 'j, Ifk<Thermal Recording Device's Control 11th Circuit Loss Part゛) That is, L Snake I1゛:
Part transcription a)'Li! 'i,' 17 sleeves + I, 1b
ll ilu timesFi ノ<H! An example is shown in a block diagram. First record by operator 151] Start t'7:
Due to the operation, a predetermined control (ill/driver) is sent from the 114<verb1ii11 part 50 to the drive roller driving circuit 51.The drive roller river (driving circuit 51-t'&, 1. 1 (i'I
, Recording Department 100's Dora f Zoroller 5 J! The stepping motor 150 for Raccoon + starts transporting the black H) F 12 by sending out the stepping motor 50 and rotating the drive roller 5. Also this black IDF
At the same time as the conveyance of the recording paper P starts, the conveyance of the recording paper P is also started by a recording paper supply mechanism (not shown).
P moves back and forth through the guide roller 30 and is first supplied to the black recording section 100 . The guide roller 30 rotates as the recording paper 1) passes through the guide roller 30, and as the recording paper 1) passes, the rotation angle detector 300 provided on the other shaft detects the idro 2300 corresponding to the rotation angle. Figure 4 (1)) span) occurs and the corresponding malus is counter C1.
will be added to and counted. This counter C, starts counting 1g tt” Paper is sent to the second stage! -iI Poem appearance stepping circuit 53 performs a predetermined calculation 4.r and 2r51i in the black recording section 100 of the recording paper P, ! The values of '*' converted to the feed sea skin are then added to the comparator 54. On the other hand, the control notes applied from the foot movement control section 50 to the drive roller drive circuit 51 are similarly applied. It is also added to the counter Co, and the control noyrus starts counting at the same time as the counter C starts counting.

Then, the count value of this counter Co is
A predetermined operation j? is added to the p output circuit 52. - Under the control of the drive roller driving circuit 51 to which the control pulse is inputted via -, the recording paper P is converted to the standard (ideal) feeding area for feeding i in the black recording section 100, and the conversion value 31 is also changed. is added to comparator 54. Here, the comparator 5
4 compares the reference feed amount for the black %20 copies 100 of the recording paper P detected by each of the paper feed speed calculation circuits 52 and 53 with the negative feed amount, and calculates the amount for the reference feed fJ. As mentioned above, the actual feed: h1 is the minimum feed of the recording paper P in the sub-scanning direction, (41 minutes, that is, in the apparatus of the present invention, it is 1 (r = m) more than 2, depending on how small it is. (B signal is sent to the thermal head drive circuit 55. Now, assuming that the actual feed speed at the engineering site is increased by the amount of the reference feed lf), the ratio axis is The device 54t then sends, for example, a black image signal reduction signal to the thermal head drive circuit 55. Here, the thermal head drive circuit 5
5, based on this reduction signal, the black recording section 100
By turning on the thermal head IOK and stopping the supply of the 14-color image information line to be printed next and not printing, the feed υM of the recording paper P in the black recording section 100 is simulated by the reference feed Jtt. Correct to. By the way, as for the printing result in this case, the minimum image information of the normally used original is 1242 minutes at the current nQ recording location as mentioned above since there is more than 2 lines of J ('i minimum standard feed distance JR) of the recording paper P. Even if the image information of -C is deleted, the image information will not disappear.
If the specific electric current result of the I unit 54 is less than the actual feed value (above) and the reverse feed image, the comparator 54 converts circuit 55
For example, a black image information insertion signal is sent.

As a result, in the thermal head 111 movement circuit 55, the thermal head 10-ray 01 of the black recording section 100 is
■Add one line of black screen information and supply +1';':
By mixing the L letters, the above-mentioned four azaleas are printed in 18 colors, part 10.
Correct the feed amount of paper P marked 0 to JK::similarly to the standard feed υ%.

In addition, one line of black image 113F is added here.
, 1Ti information recorded 1IrI ago, or image information to be recorded next. By continuously performing the above-mentioned control during recording, the transfer position of the black ink in the black recording unit 100 is set to the transfer position when the recording paper P is advanced by the base 3v/feed 111 minutes. can be kept. The above-mentioned transfer misalignment correction 1111 circuit is also applied to the red recording section 200 by adjusting the rotation angle (guide) of the guide roller 40 disposed in the spring color recording section 200. Roller rotation angle detector 40 (1.Xi output value of l) to 1
11 issued red inscription part 2 () 0 i"jl j
jL Jtt, send bell paper P! Based on the comparison result between the lv amount and the reference feed value, printing is performed with supply correction for each line of both blue and 11° signals in the same manner as described above for the thermal head 20 of the spring color recording section 200. This ll
'l'1! r: Transfer position R/ of each color ink of each recording section
It is possible to maintain the two bases in the same position, and it is possible to reduce the positional deviation of each color transfer ink due to the difference in the recording paper feed 9 between each recording section, which has been a problem in the past, and to improve printing quality. I can listen and contribute.

In the above embodiment, the reference side opening of each recording section is set in advance, and the standard feed width 1 and the actual feed width are compared to determine the minimum side width of the recording paper, which is 71 inches. ! We have described a method for printing by reducing or inserting one line of image information using the thermal head of each recording unit when +1 line is increased, but if the flW between each recording unit is Feed of paper P' (relative feed by comparing -1) + fn': Based on the amount of paper P' (minimum sub-travel of recording paper), one line of image information of the dual head of the 5i4 recording section is calculated. The above effects (・k) can also be expected by reducing or printing by inserting.Furthermore, the present invention can be applied to two-color transfer!''! Of course, it can also be summarized in 19.

[Effects of the Invention] As explained above, according to the multicolor transfer type thermal recording device of the present invention, lζ is arranged in each recording section, and lζ is arranged in each recording section, and lζ changes the paper feed movement from the rotation angle of the idronilla. If the line thermal head of the recording unit detects and each side increases or decreases by the amount of line (minimum feed value of the recording paper), the line thermal head of the recording unit will detect the corresponding t:+', the recording color image 1 blue? Since printing is done by deleting or inserting +41 lines, it is possible to reduce the misalignment of the thermal head by one line due to the difference in the feeding ridge of the H11 recording paper that falls into each recording section. , 1 recording item, the previous: z L <The excellent effect of being able to improve (13).

[Brief explanation of drawings]

Figure 71 1 is a schematic diagram showing an example of the multicolor rH7 type J1 (9-convex h1 recorder i'j-;
The diagram shows Reitsu 1. Ming 10 1 (multicolor transfer t showing 11 and 41'i of thermal recording device ■: 111S 1;・1 tan, 1
Otsu 1, Gi', SS 1 is related to Honro 15 Akira, but IP tJ-Ra's 1, Leri's 9t ↓ does not show 1511, and the 3rd [, NI (a) and ((・) ke 2L Kono!, 41ζ construction perspective view of Rinapu f Hydroge, L (壓 3 figure (h) upper 2% (dl Eire-Muretyo Kame 3 L; 21
1154 (Fl) and (b)
5 is a diagram showing the schematic structure of the guide roller N rotation angle detection left side mounted directly on the device of the present invention, and a schematic diagram showing the shape of the A pulse generated from the guide roller rotation angle detector.
The figure shows multicolor transfer type J of the present invention.1. ;;~Recording section li
FIG. 2 is a block diagram showing a broken part of the 'Ffli' control circuit; 10, 20...Thermal head, 11.21...No9 crawler, 30.40...Guide low shear, 300
゜400...Guide roller rotation angle detector, 301...
- Rotating plate, 302... Light emitting element, 3 () 3 - Slit plate, 304... Light receiving element, 50... Hayabusa! 1+11
? 1ill Il'i' capital, 51...Drive roller drive circuit, 52.53...Paper feed 1/119 output circuit,
54... Comparator, 55... Thermal head dispatch circuit, 150... Drive r+--. ping motor. Figure 1 Figure 2

Claims (1)

[Claims] Ordinary recording paper and ink donor fill J coated with heat-fusible or heat-sublimable ink are stacked and combined, and a pack roller is used to press them against a thermal recording head.
A multi-color transfer roller lJ'! is provided with a recording section for at least two colors, which melts the ink by thermal energy selectively supplied from the thermal recording head according to image information and performs color transfer recording on the recording paper. ll')-#! 'i In the thermal recording device,
A guide roller is provided in the recording paper passing path corresponding to each of the recording sections and rotates in accordance with the movement of the recording roller, and a guide roller is provided that rotates in accordance with the movement of the recording roller. When f1 is low in feed, the rotation angle corresponding to 411 points per line is detected by a guide roller N rotation angle detector detected by one bar L, and the guide roller rotation J1]. Calculate 1 ball and 1 liter of each, and calculate the feed stitch when the recording section's recording λ feed stitch is based on the preset base? If the minimum feed of the recording paper in the sub-scanning direction has increased by 9 m compared to the distance, the next line of image information to be added to the recording head of the relevant recording section is deleted and the minimum feed of the recording paper is increased by 9 m. The apparatus is equipped with a fii' control means for inserting one line worth of image information added immediately before to the thermal recording head or image information to be added next to the thermal recording head when the amount of image data to be sent is reduced. Multi-color transfer type thermal recording with 45 lines.