JP2000168134A - Recording head and recording method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce a shift amount of recording and lines and improve a recording speed by dividing a plurality of recording elements to a plurality of blocks and controlling to sequentially drive the recording elements simultaneously in units of blocks when the plurality of elements are to be sequentially driven in a fixed direction to record lines. SOLUTION: An SLED chip of an LED recording head has 1-128 light-emitting parts. In this case, the light-emitting parts are controlled separately via a boundary between a 65th light-emitting part and a 65th light-emitting part. A first through the 65th light-emitting parts are controlled by ϕSa, ϕ1a, ϕ2a, ϕIa and VGAa, and the 65th through a 128th light-emitting parts are controlled by ϕSb, ϕ1b, ϕ2b, ϕIb and VGAb. Control signals ϕSo and ϕ1o of control signals ϕSo, ϕ1o, ϕ2o and ϕIo and image signals ϕDa and ϕDb input to a driver are divided respectively to ϕSb, and ϕ1a and ϕ1b, connected to a current-limiting resistor of the SLED chip to corresponding terminals of the SLED chip.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an LED recording head for a recording apparatus using LEDs.

[0002]

2. Description of the Related Art The structure of a conventional LED head is shown in FIG. In FIG. 11, a plurality of chips in which LED light emitting elements are arranged in an array in one row are arranged in one row, so that one line of image can be formed. Here, the LED array used generally has an anode or a cathode of an LED chip formed of a common electrode, and one of them is formed with a pad which can be connected to a driver. In the conventional example, the cathode is formed of a common electrode. An example will be described.

[0003] Reference numeral 801 denotes one of the LED chips.
A plurality of three LED light emitting units are arranged. 804 is L
Connection pad corresponding to ED 803
The D chip driver is connected to a driver unit corresponding to the LED light emitting unit by wire bonding. Naturally, L
Also on the ED chip driver side, there is a connection pad 805 on the driver side corresponding to the connection pad on the LED chip side.

In the case of this LED chip, one light emission control unit is required for one LED light emission unit.
A drive control unit 806 that can perform FF control is provided. As an LED array, a self-scanning light emitting element (SLED: Self: scanning Light) is used.
Some of them use Emitting Diode, and SLEDs are disclosed in, for example, JP-A-1-238962, JP-A-2-208067, and JP-A-2-212.
No. 170, JP-A-4-5872, JP-A-4-58
No. 233,673, JP-A-4-296579, JP-A-5-84771, and the like. In the IEICE (1990 3.5), PN
A self-scanning light emitting element using a PN thyristor structure, Japan Hard Copy 1991 (A-17), describes a light emitting element array for an optical printer in which a driving circuit is integrated.

FIG. 12 shows a circuit configuration showing an equivalent circuit of a light emitting element array having such a self-scanning function. FIG. 13 shows a conventional control signal and timing for controlling this SLED. Note that the example of FIG. 13 is an example in which all the elements are turned on. FIG. 12 shows a state in which the driver shown in FIG. 14 and the start pulse φS, the signal φI, the signal φ2, and the signal φD are cascaded to respective signals via resistors. As shown in FIG. 12, the SLED includes a portion in which transfer thyristors (SR1'-SR5 ') are arranged in an array, and a portion in which light-emitting thyristors are arranged in an array. Thyristor of light emitting part (SR1-SR
The gate signal of 5) is connected and the first thyristor SR
1 'is connected to the signal input of φS.

The gate of the second thyristor SR2 'is connected to the cathode of a diode D connected to the gate of the thyristor connected to the terminal of φS, and the third is connected to the cathode of the next diode. ing.

The transfer and light emission will be described with reference to the timing chart of FIG. At the start of transfer, φS is 0V
To 5V. Va = 5V and Vb = 3.7 when the φS driver section becomes 5V.
V (the forward voltage drop of the diode is assumed to be 1.3 V),
Vc = 2.4 V, Vd = 1.1 V, and after Ve, the voltage becomes 0 V and changes from 5 V to 3.7 V from the gate signal 0 V of the transfer thyristors 1 ′ and 2 ′ (Va, Vb, V, respectively).
c, Vd, and Ve are respectively a, b, c, d, and e in FIG.
Indicates the voltage. ). In this state, the potential of the thyristor for transfer of SR1 'is changed to 5V for the anode, 0V for the cathode, and 5V for the gate by changing the φ1 driver section from 5V to 0V, so that the thyristor is turned on. Thyristor 1 'is turned on.

In this state, even if φS is changed to 0 V, Va ≒ 5 V because thyristor 1 ′ is ON (reason: φ).
A pulse is applied to S through a resistor. When the thyristor is turned on, the potential between the anode and the gate becomes substantially equal.) Therefore, even if φS is set to 0 V, the ON condition of the first thyristor is maintained, and the first shift operation is completed. In this state, when the φI driver signal for the light emitting thyristor is changed from 5 V to 0 V, the condition becomes the same as the condition when the transfer thyristor is turned on.
The third LED will light up. By returning the driver signal of φI to 5 V, the first LED loses the potential difference between the anode and the cathode of the light emitting thyristor and cannot supply the minimum holding current of the thyristor, so that the light emitting thyristor 1 is turned off.

Next, the transfer of the thyristor ON condition from SR1 'to SR2' will be described.
Even if F, the driver section of φI remains at 0 V, so SR1 '
Remains ON, SR1 'has a gate voltage Vs ≒ 5V, and Vb = 3.7V. In this state, the potential of SR2 'is changed to 5V for the anode, 0V for the cathode, and 3.7 for the gate by changing the driver of φ2 from 5V to 0V.
When it becomes V, SR2 'is turned on.

After the SR2 'is turned ON, the driver section of φI is changed from 0V to 5V, so that SR1 becomes O1.
It is turned off in the same way as when FF is performed. Thus, the ON state of the transfer thyristor shifts from SR1 'to SR2'. And
SR2 turns on when φI driver is changed from 5V to 0V
And emit light.

The reason that only the light emitting thyristor whose transfer thyristor is ON can emit light is that when the transfer thyristor is not ON, the gate voltage is 0 V except for the thyristor adjacent to the ON thyristor. The thyristor does not turn on. The potential of φI becomes 3.4 V (a forward voltage drop of the light-emitting thyristor) when the light-emitting thyristor is turned on also in the adjacent thyristor. Can not do it. Light emission control can be performed by sequentially repeating the above.

[0012]

SUMMARY OF THE INVENTION However, SLE
When the LED recording head is constituted by D, light emission is dot-sequential (emission is performed according to the transfer timing in FIG. 13).
When one straight line is formed while performing the sub-scanning of the LED, there is a problem that the printing result becomes oblique.

This problem has conventionally been addressed by increasing the scanning speed of the SLED, but when the speed is further increased, there is a problem that the speed of the SLED itself is limited.

SUMMARY OF THE INVENTION An object of the present invention is to provide a recording head and a recording head capable of reducing the amount of deviation between recording and straight lines and improving the recording speed.

[0015]

According to a first aspect of the present invention, a plurality of recording elements are arranged in a line in a horizontal scanning direction, and the plurality of elements are sequentially driven in a fixed direction to perform linear recording. The recording head to be performed is characterized in that the recording head is provided with control means for dividing the plurality of recording elements arranged in a line into a plurality of blocks, and sequentially driving the recording elements sequentially in block units.

According to a second aspect of the present invention, in the recording head according to the first aspect, the plurality of linearly arranged recording elements are divided into two blocks, and the control means is arranged from both ends toward the center. A plurality of printing elements are sequentially driven.

According to a third aspect of the present invention, in the recording head according to the first aspect, the plurality of recording elements arranged in a line are divided into two blocks, and the control means moves from the center toward both ends. A plurality of printing elements are sequentially driven.

According to a fourth aspect of the present invention, in the recording head according to the first aspect, the drive timing of the plurality of print elements is determined using a common clock signal.

According to a fifth aspect of the present invention, in the recording head according to the first aspect, the electrodes of the plurality of recording elements are shared.

According to a sixth aspect of the present invention, in the recording head according to the first aspect, an odd-numbered block among the divided blocks drives a recording element from a left or right first direction in a horizontal scanning direction, The even-numbered blocks drive the printing elements in a second direction opposite to the first direction.

According to a seventh aspect of the present invention, in the recording head according to any one of the first to sixth aspects, the recording element is an SLE.
D.

According to an eighth aspect of the present invention, there is provided a recording method for linearly recording a plurality of recording elements by arranging the recording elements in a line in a horizontal scanning direction and sequentially driving the plurality of elements in a fixed direction. The method is characterized in that the plurality of printing elements arranged in a line are divided into a plurality of blocks, and the printing elements are sequentially driven simultaneously in block units.

According to a ninth aspect of the present invention, in the recording method according to the eighth aspect, the plurality of printing elements arranged in a line are divided into two blocks, and the plurality of printing elements are arranged from both ends toward the center. Are sequentially driven.

According to a tenth aspect of the present invention, in the recording method according to the eighth aspect, the plurality of recording elements arranged in a line are divided into two blocks, and the plurality of recording elements are arranged from the center toward both ends. Are sequentially driven.

According to an eleventh aspect of the present invention, in the recording method according to the eighth aspect, the drive timing of the plurality of recording elements is determined using a common clock signal.

According to a twelfth aspect of the present invention, in the recording method according to the eighth aspect, the electrodes of the plurality of recording elements are shared.

According to a thirteenth aspect of the present invention, in the recording method according to the eighth aspect, an odd-numbered block among the divided blocks drives a recording element from a left or right first direction in a horizontal scanning direction, The even-numbered blocks drive the printing elements in a second direction opposite to the first direction.

[0028] According to a fourteenth aspect of the present invention, in the recording method according to any one of the eighth to thirteenth aspects, the recording element is an SL.
ED.

[0029]

Embodiments of the present invention will be described below in detail with reference to the drawings.

(First Embodiment) FIG. 1 shows the configuration of a recording head (SLED chip) according to a first embodiment of the present invention. FIG. 2 shows an overall schematic configuration of a color image forming apparatus using the recording head of FIG. First, the configuration of the color reader will be described.

In FIG. 2, reference numeral 101 denotes a CCD, and 311 denotes a substrate on which the CCD 101 is mounted. Reference numeral 312 denotes a printer processing unit, and 301 denotes a platen glass (platen). 3
Reference numeral 02 denotes a document feeder (a mirror pressure plate or a white plate pressure plate (not shown) may be mounted in place of the document feeder 302). Reference numerals 303 and 304 denote light sources of a halogen lamp or a fluorescent lamp for illuminating the document. is there. 305 and 3
Reference numeral 06 denotes a reflectance for condensing the light from the light sources 303 and 304 onto the document, and reference numerals 307 to 309 denote mirrors.

Reference numeral 310 denotes the reflected light or the projected light from the original as C.
A lens for condensing light on the CD 101, 314 is a halogen lamp 303, 304 is a reflectance 305, 306 and a mirror 30
7 is a carriage that houses the carriage 7. 315 is the mirror 30
3309, a carriage for accommodating 3,309 other IPUs.
And an interface (I / F) unit. Note that the carriage 314 has a velocity V, and the carriage 315 has a velocity V.
At / 2, the entire surface of the document is scanned (sub-scanning) by mechanically moving the CCD 101 in a direction perpendicular to the electrical scanning (main scanning) direction.

Next, the configuration of the printer unit in FIG. 2 will be described. Reference numeral 317 denotes a magenta (M) image forming unit, 318 denotes a cyan (C) image forming unit, 319 denotes a yellow (Y) image forming unit, and 320 denotes a black (K) image forming unit. The forming unit 317 will be described in detail, and description of other image forming units will be omitted.

In the M image forming unit 317, reference numeral 342 denotes a photosensitive drum, on which a latent image is formed by light from the LED recording head 210 according to the present invention. 321
Is a primary charger, which charges the surface of the photosensitive drum 342 to a predetermined potential to prepare for formation of a latent image. A developing unit 322 develops the latent image on the photosensitive drum 342 to form a toner image. Note that the developing device 322 includes a sleeve 345 for applying a developing bias to perform development.

A transfer charger 323 is a transfer material transport belt 3.
33 discharges from the back surface, and transfers the toner image on the photosensitive drum 342 to recording paper or the like on the transfer material transport belt 333. In this embodiment, since the transfer efficiency is good, the cleaner portion is not provided, but it goes without saying that there is no problem even if the cleaner portion is attached.

Next, a procedure for transferring a toner image onto a transfer material such as recording paper will be described. Transfer materials such as recording paper stored in cassettes 340 and 341 are pick-up rollers 33.
9 and 338, the sheet is supplied onto the transfer material transport belt 333 by the sheet feed rollers 336 and 337 one by one. The supplied recording paper is charged by the adsorption charger 346. Reference numeral 348 denotes a transfer material transport belt roller that drives the transfer material transport belt 333 and charges the recording paper or the like in pairs with the attraction charger 346 so that the recording paper or the like is attracted to the transfer material transport belt 333. Note that the transfer material transport belt roller 348 may be a drive roller for driving the transfer material transport belt 333, and a drive roller for driving the transfer material transport belt 333 may be disposed on the opposite side.

A paper edge sensor 347 detects the edge of a recording sheet or the like on the transfer material transport belt 333. The detection signal of the paper leading edge sensor 347 is sent from the printer unit to the color reader unit, and is used as a sub-scanning synchronization signal when a video signal is sent from the color reader unit to the printer unit.

Thereafter, the recording paper and the like are transferred to the transfer material transport belt 3.
The toner image is formed on the surface in the order of MCYK in the image forming units 317 to 320. The transfer material such as recording paper that has passed through the K image forming unit 320 is separated from the transfer material transport belt 333 after the charge is removed by the charge removing charger 349 in order to facilitate separation from the transfer material transport belt 333. Reference numeral 350 denotes a peeling charger, which prevents image disturbance due to peeling discharge when recording paper or the like is separated from the transfer material transport belt 333. The separated recording paper and the like are charged by pre-fixing chargers 351 and 352 in order to compensate for toner attraction and prevent image disturbance,
After the toner image is heat-fixed by the fixing unit 334, the sheet is discharged to a sheet discharge tray 335.

Here, the LE used for recording according to FIG.
The SLED chip of the D recording head 210 will be described. FIG. 3 shows an internal equivalent circuit of the SLED chip of FIG.

In FIG. 1, reference numerals 1 to 128 denote light emitting portions (numbers 2 to 63 and 66 to 127 are omitted in FIG. 1), and control is performed between the 64th light emitting portion and the 65th light emitting portion. Is divided. ΦSa,
φ1a, φ2a, φIa, and VGAa perform control and 65
ΦSb, φ1b, φ2b, φI
b, VGAb is configured to perform control.

In FIG. 3, the same portions as those of the conventional example 1 of FIG. 12 are denoted by the same reference numerals, and the detailed description will be omitted.

FIG. 4 shows the connection relationship with the light emitting driver.
FIG. 5 shows the control timing. The operation of the driver will be described with reference to FIG. In the present embodiment, the SLED chip driven by the driver unit will be described with a single configuration.
It goes without saying that there is no problem depending on the number of SLED chips in the recording head. Further, although the bit number of Data in the driver unit is not explicitly stated, SL
It goes without saying that there is no problem even if the number increases or decreases depending on the number of ED chips and the driving speed of the LED recording head.

Control signals φSo, φ1o, φ2o, φIo generated by a control unit (not shown) are input to this driver unit. Regarding φIo, D
The data signal φDa or φD shown in FIG.
b is generated. For Data, signals read by the reader unit are rearranged by a control block (not shown) in the order of light emission of the SLED chips. For example, the first light emission data and the 128th light emission data of the SLED are input to the driver control unit. . Data is sequentially input as the second and 127th data. The control signals (φSo, φ1o, φ2o, φIo) input to the driver and the generated image signals (φDa, φDb) are divided into φSa and φSb via an output buffer, and φ1o is divided into φ1a and φ1b. Divided, φ2o is divided into φ2a and φ2b and connected to the respective current limiting resistors of the SLED chip, each of which is connected to the terminal of the corresponding SLED chip. With such an SLED, S
The light emission of the LED chip is 128
The second light-emitting part lights up, and the second light-emitting part
As shown in FIG. 6, the upper side (a) shows the result when one line is printed in the conventional case, and the lower side (b) shows the result when the SLED chip of this embodiment is used. This is the result of printing. Thus, not only is the step between the SLED chips inconspicuous, but also the inside of the SLED chips can be driven in parallel, so that the speed can be increased.

(Second Embodiment) In the second embodiment, the VGAa and VGAb further differ from the first embodiment in that the gate currents of the SLED transfer thyristor and the light emitting thyristor are compared with the resistance RL of FIG. Restrict by relationship. The configuration is such that the gate current flows as the voltage of the VGA is lower, and the response speed when the thyristor is ON and the response speed when it is OFF are determined. For this reason, although it may change depending on the state of the wafer of the SLED array chip,
Since there is almost no variation in a chip or a wafer, there is no problem even with a common voltage. Further, as shown in FIG. 7, by using only the VGA electrode in common, the SL
It becomes possible to reduce the number of wire bonding of the ED chip, and there is an effect of cost and down.

(Third Embodiment) In the first and second embodiments, by increasing the driving capability of the buffer for driving φS, φSa and φSb are connected after the resistors are connected in cascade from the driver. It is possible to drive. Therefore, by configuring the SLED array chip as shown in FIG. 8, it is possible to use a common connection electrode of φS. In FIG. 8, the upper side (a) shows the configuration corresponding to the first embodiment, and the lower side (b) shows the configuration corresponding to the second embodiment.

Thus, also in the third embodiment, it is possible to reduce the number of wire bonding, which has an effect of reducing costs.

(Fourth Embodiment) In the fourth embodiment,
Φ1 of SLED chip in the first to third embodiments
The connection electrodes a, b and φ2a, b are common. FIG.
FIG. 10 shows an equivalent circuit of the SLED chip and FIG. 10 shows a connection with a driver unit when all the above embodiments are incorporated.

In FIG. 9, φ1a and φ1b are divided into two parts.
Resistors R1a and R1b are connected to the SLED
Chip transfer thyristor (SR1 'to SR128')
And the resistors R2a and R2b are connected to the portions where φ2a and φ2b are connected by two.
The LED chips are connected to the respective cathode sides of the transfer thyristors. These R1a, R1b, R2a, R2b
May be a semiconductor resistor, or any other resistor that can be manufactured by a process on an SLED chip.

In the configuration shown in FIG. 10, for the signals of φ1 and φ2, a current limiting resistor of the transfer thyristor is provided in the SLED chip, no resistor is required between the buffers of the driver, and only one connection is made.

As described above, it is possible to realize an SLED chip that can control points and the like from both ends of the light emitting portion in the SLED chip. Further, by limiting the transfer thyristor with respect to φ1 and φ2 in the SLED chip, There is an effect that the number of electrodes for connection to the driver unit is reduced, the number of wire bonding for connection is reduced, and external resistance is not required.

(Fifth Embodiment) In the above embodiment, the speed in the chip can be further increased by dividing the chip into 2n parts instead of two.

(Sixth Embodiment) In the above embodiment, the same effect can be obtained even if the printing operation from both ends is performed so as to print from the center to the end.

As described above, by configuring the SLED head to emit light simultaneously from both sides (or from the center) in the SLED array chip,
, The light emission speed is doubled, and the light emission step between the SLED array chips can be reduced.

SLED for Realizing the Above Configuration
The configuration in the array chip is as follows. 1. Mirror configuration at the center of chip 2. Common VGA electrode 3. Common to φS electrode The φ1 and φ2 electrodes can also be used in common, and any one of them can reduce the light emitting step between the SLED array chips.

Further, by dividing the inside of the SLED chip by 2n instead of dividing it into two as described above, there is an effect that the speed can be further increased. In this case, if all the electrodes in the above configuration are incorporated, the amount of wire bonding connected to the SLED array can be increased by 2n-1 pieces, which also has the effect of high definition and cost reduction.

[0056]

As described above, claims 1 to 3,
According to the inventions of 7 and 8 to 10, 14, when recording for one line, recording is performed simultaneously from both ends or the center of a recording head such as an SLED when divided into two blocks. In addition, the amount of slant is half that of the conventional case, and the recording speed is twice that of the conventional case.

According to the fourth, fifth, eleventh and twelfth aspects of the present invention, the clock signal and the electrode of the recording element are shared,
It is possible to make the production of the recording head easy and contribute to the reduction of the production cost.

According to the sixth and thirteenth aspects of the present invention, when the recording head is divided into a plurality of blocks, the recording directions of the two adjacent blocks are opposite to each other, so that the amount of oblique displacement of the line is reduced.

[Brief description of the drawings]

FIG. 1 is a configuration diagram illustrating a configuration of a recording head according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view illustrating a schematic configuration of a color image forming apparatus.

FIG. 3 is a circuit diagram showing an equivalent circuit of the recording head of FIG.

FIG. 4 is a configuration diagram illustrating a relationship between a light emitting driver and a recording head.

FIG. 5 is a timing chart showing control timing according to the embodiment of the present invention.

6A is an explanatory diagram showing a configuration of a conventional recording head and a recording result, and FIG. 6B is an explanatory diagram showing a configuration and a recording result of the recording head of the embodiment of the present invention.

FIG. 7 is a configuration diagram illustrating a configuration and a recording result of a recording head according to a second embodiment of the present invention.

FIG. 8A is a configuration diagram illustrating a configuration of a recording head according to a third embodiment corresponding to the first embodiment, and FIG. 8B is a configuration diagram corresponding to the second embodiment.

FIG. 9 is a circuit diagram illustrating an equivalent circuit of a recording head according to a fourth embodiment.

FIG. 10 is a configuration diagram illustrating a relationship between a light emitting driver and a recording head according to a fourth embodiment.

FIG. 11 is a configuration diagram showing a configuration of a conventional KED head.

FIG. 12 is a circuit diagram showing an equivalent circuit of a conventional light emitting element array.

FIG. 13 is a timing chart showing a conventional control signal and its timing.

FIG. 14 is a configuration diagram illustrating a relationship between a conventional light emitting driver and a recording head.

[Explanation of symbols]

 801 LED chip 802 LED chip driver 803 LED light emitting unit 804, 805 Connection pad 806 Drive control unit

Continued on front page F-term (reference) 2C162 AE01 AE12 AE21 AE28 AE47 AE74 AF13 AF14 AF60 AF76 AH03 AH04 AH72 AH84 FA04 FA17 5C051 AA02 CA08 DB02 DB08 DE01 EA00 EA01 5F041 BB06 CB22 DA13 DA20 DA83 FF13

Claims (14)

[Claims] 1. A recording head which performs a linear recording by arranging a plurality of printing elements in a line in a horizontal scanning direction and sequentially driving the plurality of elements in a fixed direction. A plurality of print elements divided into a plurality of blocks, and control means for sequentially driving the print elements simultaneously in block units. 2. The recording head according to claim 1, wherein
The print head, wherein the plurality of print elements arranged in a line are divided into two blocks, and the control means drives the plurality of print elements sequentially from both ends toward the center. 3. The recording head according to claim 1, wherein
The printing head according to claim 1, wherein the plurality of printing elements arranged in a line are divided into two blocks, and the control means sequentially drives the plurality of printing elements from a center toward both ends. 4. The recording head according to claim 1, wherein
A print head, wherein the drive timing of the plurality of print elements is determined using a common clock signal. 5. The recording head according to claim 1, wherein
A recording head, wherein electrodes of the plurality of recording elements are shared. 6. The recording head according to claim 1, wherein
Of the divided blocks, the odd-numbered blocks drive the recording elements from the left or right first direction in the horizontal scanning direction, and the even-numbered blocks drive the recording elements in the second direction opposite to the first direction. A recording head that is driven. 7. The recording head according to claim 1, wherein the recording element is an SLED. 8. A printing method for arranging a plurality of printing elements in a line in a horizontal scanning direction and performing linear printing by a printing head that sequentially drives the plurality of elements in a fixed direction. A recording method comprising: dividing a plurality of printing elements provided into a plurality of blocks; and sequentially driving the printing elements simultaneously in block units. 9. The printing method according to claim 8, wherein the plurality of printing elements arranged in a line are divided into two blocks, and the plurality of printing elements are sequentially driven from both ends toward the center. A recording method characterized in that: 10. The recording method according to claim 8, wherein
A printing method, wherein the plurality of printing elements arranged in a line are divided into two blocks, and the plurality of printing elements are sequentially driven from the center toward both ends. 11. The recording method according to claim 8, wherein
A print head, wherein the drive timing of the plurality of print elements is determined using a common clock signal. 12. The recording method according to claim 8, wherein
A recording method, wherein electrodes of the plurality of recording elements are shared. 13. The recording method according to claim 8, wherein
Of the divided blocks, the odd-numbered blocks drive the recording elements from the left or right first direction in the horizontal scanning direction, and the even-numbered blocks drive the recording elements in the second direction opposite to the first direction. A recording method characterized by being driven. 14. The recording method according to claim 8, wherein the recording element is an SLED.