JPH06106808A - Recording device - Google Patents

Abstract

PURPOSE:To improve throughput by detecting a non-recorded area for image information received from a host system, and selecting a faster skip speed than a recording speed using a means for controlling carriage drive, if there is a non-recorded area having at least a specified width in a main scan direction. CONSTITUTION:The recording device is equipped with a recording head 1 which is mounted on a movable carriage in a main scan direction, a means 11 for controlling carriage drive which selects between a specified recording speed and a faster skip speed than the former and moves the carriage at the selected speed, and a means 6 for controlling recording medium drive which moves a recording medium in a subscan direction to feed the line, and records received image information. In this serial recording device, the non-recorded area for received image information is detected, and if a non-recorded area having at least a specified width is present in the main scan direction, the carriage is moved over this non-recorded area at skip speed. Consequently, it is possible to improve the throughput.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording apparatus, and more particularly to a serial type recording apparatus which performs main scanning by moving a carriage carrying a recording head in a horizontal direction.

[0002]

2. Description of the Related Art In the above-mentioned conventional recording apparatus, when image information from a host system is recorded, in scanning one line, a range of data designated by the host system is scanned and the image data width is recorded. In order to improve the recording speed, the recording device detects the left and right blank data portions of the image information and records the range from the left end to the right end position of the effective data.

In either case, the scanning speed is constant. However, in a device having a carriage moving speed higher than that in normal recording, as represented by thinning-out printing and draft recording, a certain number or more of continuous space information and tab information are included in one line in character code recording. In some cases, that is, when the non-printing area has a certain length or more, the throughput is improved by moving the carriage at that portion at a speed faster than normal printing.

However, at the time of image recording, the data received on the recording device side is not analyzed and the high speed movement of the carriage as described above is not performed, but a plurality of data blocks in one line are simply transferred from the host system to the carriage. The same operation was possible only when it was individually sent together with the position information to be moved.

[0005]

In the conventional recording apparatus,
The carriage movement speed during image data recording is unique at a speed corresponding to the response frequency of the head. Therefore, even if the recording apparatus has a higher carriage speed, the carriage used for recording operation The moving speed of was limited to the speed of the response frequency of the head.

Therefore, for example, even when there is data only at the left and right ends of the recordable area, that is, when most of one scanning range is simply movement of the carriage without recording operation, the recording speed is in the entire range. Since there is no difference from the case where there is data, the high-speed movement operation of the carriage in one line was not possible in image recording unless the range was individually specified by the host system. Furthermore, when the image information from the host is sent in the raster direction, the data transfer unit does not always match one band of the horizontal scanning of the head, so the horizontal printing position designation from the host is generally It is impossible. As a result, it was difficult to improve the throughput.

The present invention has been made in order to solve the above-mentioned problems of the prior art, and receives image information to be recorded from the host system, and corresponds to the non-recorded portion of the received image information, and the carriage To move faster,
It is an object of the present invention to provide a recording apparatus that shortens the time required for recording processing from one end to the other, that is, improves throughput.

[0008]

Therefore, the recording apparatus according to the present invention has a recording head mounted on a carriage movable in the main scanning direction and a predetermined recording speed of the carriage or a skip speed higher than the recording speed. A serial-type recording apparatus that includes a carriage drive control unit that selectively moves the recording medium and a recording medium drive control unit that moves the recording medium in the sub-scanning direction to start a new line, and that receives and records image information. When a non-recording area of the image information is detected and there is a non-recording area having a certain width or more in the main scanning direction, the carriage is moved at a portion of the non-recording area at the skip speed. It is an attempt to achieve the purpose.

[0009]

With the above construction, the non-printing area of the image information received from the host system is detected, and when there is a non-printing area of a certain width or more in the main scanning direction, the skip speed faster than the printing speed is set by the carriage drive control means. It is possible to improve the throughput by selecting and moving the carriage in the non-printing area at a speed higher than that during printing.

[0010]

EXAMPLES A recording apparatus according to the present invention will be described below with reference to examples.

The embodiment of the present invention is a recording apparatus for receiving image information, character information, and information in which images and characters are mixed from the host system, and performing processing such as enlarging, reducing, and deforming on the printer side and recording the information. A recording head mounted on a carriage movable in the main scanning direction, a carriage drive control unit for moving the carriage by selecting a predetermined recording speed or a skip speed higher than the recording speed, and a recording paper in the sub-scanning direction. It is a serial-type recording apparatus that includes a recording medium drive control unit that moves to a new line and performs line feed, and performs recording based on received information.

(First Embodiment) FIG. 1 is an explanatory diagram showing the relationship between the print data position in two lines, the carriage scanning speed, and the paper feed (LF) timing in the first embodiment. FIG. 2 is an explanatory diagram showing an example of a carriage movement management table in the first embodiment. FIG. 3 is a block diagram showing the configuration of the first embodiment. FIG. 4 is a perspective view of the main mechanical portion of the first embodiment.

In FIG. 4, 1 is a recording head, 2 is a carriage for mounting the recording head, 3 is a carriage motor, 4 is a flexible cable for transmitting electric signals, 5
Is a paper feed roller, 6 is a paper feed motor, 7 is recording paper, and 8 is a head cap.

In FIG. 3, reference numeral 11 denotes a micro controller unit (hereinafter referred to as MCU) which incorporates a ROM, a timer, an I / O converter, an AD converter, etc., which are not shown, and controls all the printers.
12 is an I / F controller unit that receives data from the host system, and 13 is a RAM that stores the received data, and has a capacity that can store at least one scan of the print head. 14 receives data from the I / F controller 12 and further receives data from the RAM 1
A reception data write control unit having a write function to
Reference numeral 1 is a recording head arranged in a direction perpendicular to the carriage scanning direction and having a plurality of recording elements, 16 is a head driver for driving the recording head 1, 3 is a carriage motor for driving a carriage 2 carrying the recording head 1, 6 Is a paper feed motor that feeds paper in the vertical direction.

In the above configuration, when the information for generating the image data in the raster direction is received from the host system via the I / F controller section 12, the data is stored in the RAM 13 by the write control section 14.
When the recording width of the data stored in the RAM 13 becomes equal to or larger than the number of nozzles of the recording head 1 or the data to be recorded by receiving the recording start command, that is, one scan of the recording head 1 is prepared, the MCU 11 moves in the horizontal direction in the RAM 13. Data is rearranged in the vertical direction in the RAM 13 into an address sequence that can be recorded by the recording head 1.

Next, the position of the effective print data, that is, the address is searched in the data for one horizontal scan of the head rearranged in the vertical direction. That is, the determination as to whether the image data is 0 or not, and the presence / absence of a continuous non-printing portion having a certain width or more and the position search are performed for all the data during one horizontal scanning of the print head 1.

Then, the above-mentioned retrieval is carried out for the data for two horizontal scans, and a table for managing the carriage scan speed is created. In this table, high-speed drive points,
The recording location at the normal recording speed, the mode designation for ramp-up and ramp-down until reaching each speed are described. An example of the above table is shown in FIG. The recording speed is specified as the scanning speed for normal recording in the area where the recording block is located.The non-recording area with a certain width or more (hereinafter referred to as the non-recording area) from the print end position of this line to the print start position of the line to be printed next , Blank) is specified to drive at a speed faster than recording (hereinafter referred to as skip speed).

After the above processing, the MCU 11 activates the carriage motor 3 to start horizontal scanning of the recording head 1. The operation mode of the carriage drive motor 3 is driven at a speed according to the above table. When the carriage 2 reaches the printing point, the data stored in the RAM 13 is read out and transferred to the head driver 16 to be transferred to the recording head 1.
The recording operation is performed by. When recording of one line is completed, the paper feed motor 6 is driven to perform scanning in the vertical direction, the carriage 2 is stopped, and the data to be recorded next is prepared. The above sequence is repeated to record one page.

FIG. 1 shows image output, which is a feature of this embodiment.
FIG. 9 is an explanatory diagram showing a carriage scanning speed and a paper feed timing when the image is output.

In this embodiment, a non-printing area of 2 lines is detected and the carriage scanning speed and the paper feed (LF) timing are changed. When outputting this image, the printer prints the first line at a predetermined recording speed V1 and then prints at the interval L.
And print the second line. While the carriage is moving in the interval L, the scanning speed is increased to the skip speed V2, and line feed is performed at the same time.

Next, a carriage motor control method for outputting the image in the printer according to the first embodiment of the present invention will be described.

First, the carriage motor is ramped up, and when the constant recording speed V1 is reached, the first line is printed. Next, the carriage motor is ramped up to the skip speed V2, moved at the skip speed V2, and further ramped down to the recording speed V1. Meanwhile, the paper feed motor is driven to feed the paper. When the carriage is at the left end of the second line after feeding the paper, the second line is printed at the recording speed V1.

In FIG. 1, the time during which the carriage scans the interval L during skip traveling (including ramp-up from recording speed to skip speed, movement at skip speed, and ramp-down from skip speed to recording speed). Is T (L) and paper feed time TPF, T (L) is T
If it is larger than PF, such a printing method is possible,
The paper feed time can be saved, the carriage ramp-up and ramp-down can be avoided, the carriage movement time can be short-circuited, etc., and the recording speed can be improved.

FIG. 5 is a flow chart showing an outline of the printer control method in the first embodiment.

In step 801, the carriage is ramped up, and in step 802 the head is driven to 1
Print lines. In step 803, it is determined whether the paper can be fed even if the carriage speed is increased to the skip speed for scanning. That is, when the time T (L) for the carriage to move in the interval L by skip traveling is longer than the paper feed time TPF, the process proceeds to step 804, the carriage is ramped up to the skip speed, and the carriage is moving at the skip speed (step 805). Paper feed (step 80)
Perform 6). Then, the carriage is ramped down to the recording speed before the recording range of the second line (step 807).
Then, the process proceeds to step 802 to print the second line (step 802).

On the other hand, if T (L) is smaller than TPF in step 803, the flow advances to step 808 to ramp down the carriage and feed the paper in step 809. In step 810, it is determined whether the carriage needs to be returned. If the carriage needs to be returned, proceed to step 811, and proceed from steps 811 to 815.
At step 801 the carriage is returned by a predetermined amount.
Return to. If it is determined in step 810 that the carriage does not need to be returned, the process proceeds directly to step 801.

As described above, the carriage can be moved up to the skip speed and line feed can be performed based on the determination in step 803.

(Second Embodiment) Next, the case of a printer capable of bidirectional printing according to a second embodiment of the present invention will be described. Note that the block configuration and the configuration of the main mechanism are the same as those in the first embodiment, so redundant description will be omitted.

FIG. 6 is an explanatory diagram showing carriage scanning when outputting an image in two lines, which is a feature of the second embodiment.

When the image shown in FIG. 6 is output, the printer scans the carriage in the forward direction on the first line and outputs "| AB
After printing "CDEFG |", the paper is fed, then the carriage is scanned in the reverse direction, and "| HIJKLMNOPQR
Printing is performed in the order of ST UVWXYZ | ”.

Next, an outline of the control method will be described with reference to the flowchart of FIG.

The rightmost position of the first row is P1R and the leftmost position is P1L. In addition, the position of the right end of the second line is P2
R, and the leftmost position is P2L. The distance from the right end of the first line to the left end of the second line is L1, and the distance from the right end of the first line to the right end of the second line is L2. The carriage
It is assumed that the time required to run the distance L1 is T1, the time required to scan the distance L2 at the skip speed is T2, the time required to ramp up is TRA, and the time required to ramp down is TRD.

First, in step 101, the carriage is ramped up, and in step 102, the head is driven to print one line. In step 103, it is determined whether the paper can be fed without stopping the carriage as described in the first embodiment.

If T (L) is smaller than TPF in step 103, the process proceeds to step 108 to determine the printing direction of the next line. That is, in FIG. 6, TRA + T1 + TRD is T2.
If it is smaller, return the carriage to the left end of the second line, 1
As with the first line, printing in the forward direction results in shorter processing. In this case, the process proceeds to step 109, the carriage is ramped down, and the paper is fed in step 110. Then, in steps 111 to 115, the carriage is returned to the left end of the second line.

In step 108, TRD + T1 +
If TRD is larger than T2, printing is performed in the reverse direction, and the process proceeds to step 116. In step 116, when the right edge P2R of the second row is on the right of the right edge P1R of the first row as shown in FIG. 6, the carriage is caused to travel at the skip speed in steps 117 to 119, and the carriage is moved to the right edge of the second row. Proceed to P2R. In step 120, the carriage is ramped down and in step 12
Paper feed is performed at 1. Then, in step 122, the moving direction of the carriage is reversed and the process returns to step 101 to print the second line by scanning in the reverse direction.

If T (L) is larger than TPF in step 103, steps 104 to 10 are executed.
7, the carriage is moved at the skip speed to feed the paper as in the first embodiment, and the process proceeds to step 102 to print.

In step 116, P1R becomes P2R
If it is on the right side, the process proceeds to step 120, the paper is fed down by ramping down, the moving direction of the carriage is reversed, the process proceeds to step 101, and the second line is printed by scanning in the reverse direction.

In any of the first and second embodiments of the present invention, not only reception of raster image data but also image data sent by other methods can be similarly controlled. Further, since the non-recorded area is detected after converting into print data, not only image information but also character data can be similarly controlled. Therefore,
It is possible to easily implement skipping of mixed data of images and characters and skipping of modified characters.

In each of the first and second embodiments, the recording head 1 can be configured as a recording means of various systems, and particularly in the bubble jet system, high efficiency recording is possible.

As described above, in the first and second embodiments, when the image information is recorded, the effective recording position of the image information received by the recording device side is analyzed, and a certain number of non-constant images are detected during two scans. There is a recording section, and it is 1
When it is located between the print end position of the second scan and the print start position of the second scan, the throughput can be improved by making the moving speed of the carriage in that part faster than that in the print.

(Third Embodiment) FIG. 8 is an explanatory diagram showing the relationship between the print data position in one line and the scanning speed of the carriage in the third embodiment. FIG. 9 is an explanatory diagram showing an example of a carriage movement management table in the third embodiment. The block structure and the main mechanical portion are the same as those in the first embodiment shown in FIGS. 3 and 4, and the duplicated description will be omitted.

The third embodiment has the configuration shown in FIG.
When the information for generating the image data in the raster direction is received from the host system via the I / F controller 12, the write controller 14 writes the data to the RAM.
Stored in 13. When the recording width of the data stored in the RAM 13 becomes equal to or larger than the number of nozzles of the recording head 1 or when the recording start command is received, that is, the data to be printed by one scan of the recording head 1 is prepared, the MCU 11 is
The data in the horizontal direction in 13 is rearranged in the vertical direction in the RAM 13 into an address sequence that can be recorded by the recording head 1.

Next, the position of the effective recording data, that is, the address is searched from the data for one horizontal scan of the head rearranged in the vertical direction. In other words, the image data is 0
The determination as to whether the data is not or not, the presence or absence of a continuous non-printing portion having a certain width or more, and the search for the position are performed for all the data during one horizontal scanning of the print head 1.

Then, a table for managing the carriage scanning speed is created based on the above-mentioned search information. In this table, high-speed driving points, recording points at normal recording speed, and mode designation for ramp-up and ramp-down until reaching each speed are described. An example of the above table is shown in FIG. The printing speed, which is the scanning speed during normal printing, is designated for the location where the printing block is located, and the location where there is a blank of a certain width or greater is designated for driving at a faster skid speed than during printing.

After the above processing, the MCU 11 activates the carriage motor 3 to start horizontal scanning of the recording head 1. The operation mode of the carriage drive motor 3 is driven at a speed according to the above table. When the carriage 2 reaches the printing point, the data stored in the RAM 13 is read out and transferred to the head driver 16 to be transferred to the recording head 1.
The recording operation is performed by. When recording of one line is completed, the paper feed motor 6 is driven to perform scanning in the vertical direction, the carriage 2 is stopped, and the data to be recorded next is prepared. The above sequence is repeated to record one page.

Next, the control of the above operation will be described with reference to the flowcharts shown in FIGS.

FIG. 10 shows the flow from the recording device receiving data from the host system to recording.
FIG. 11 is a non-printing portion detection flowchart for creating a carriage scanning speed management table in the third embodiment.

In FIG. 10, it is judged in step S2 whether or not the data is sent from the host system. If the data is sent, the received data is stored in the RAM 13 in step S3. Then, in step S4, the received data is converted into recordable data and stored again in the RAM 13. When it is confirmed in step S5 that the print start command or the print data for one line has been completed, the process proceeds to step S6, and it is determined whether or not there is a continuous non-print portion in the printable data. Create a scan speed management table for. Then, in step S7, the recording paper is set at a predetermined position, and the process proceeds to step S8, in which the carriage is scanned according to the speed management table created in step S6 to record one line.

If it is determined in step S5 that printing has not yet started, the process returns to step S2 and data reception is performed again. If no data is sent in step S2, this routine is terminated and another process is performed.

Next, the flow of creating the carriage speed management table will be described with reference to FIG.

In the third embodiment, the recordable range is set to 2880.
It requires 250 columns of space to accelerate from the recordable speed to the skip speed and stabilize at the skip speed, and 250 columns to decelerate from the skip speed to the recordable speed and stabilize at the recordable speed. Explain that space is needed.

First, in step S21, the parameter n,
i and a are initialized. n represents a column for determining a non-recording column in the recordable range, i represents how many non-recording columns (columns in which all recording data are 0) continue, and a represents F
In the variable (a), F (a) represents the a-th skip control start sequence.

Next, in step S22, the data in the first column is read out, and in step S23, it is determined whether or not all the data are 0, that is, the non-recorded column. If it is determined that the column is the non-recorded column, the non-recorded column start column F is determined in steps S24 and S25.
Let (1) be the first column. However, this F (1) = 1 is provisional, and the value of F (1) is determined when step S30 is performed. Then, 1 is added to i in step S26 and the process proceeds to step S27. In step S27, it is determined whether or not the determination as to whether or not all the columns within the recording range are non-recorded columns has been completed. If not finished yet, the process proceeds to step S28, 1 is added to n, and the process returns to step S22 to determine the next row.

In step S23, 1 is added to the data in the nth column.
If (recorded data) exists, the process proceeds to step S29.

In step S29, it is determined whether there are 500 or more non-recorded rows by the nth row. this is,
This is because, in order to perform skip control, 250 columns are required for each of acceleration and deceleration, and thus a minimum of 500 columns of non-recording areas is required. If there are 500 or more columns, the acceleration area, the skip speed area, and the deceleration area are divided in step S30. That is, 250 rows from the non-recording start row F (a) marked in step S25 as the acceleration area to the skip speed can be recorded before the last row (n-1 row) of continuous non-recording rows. A deceleration region for speed is set, and a region between the acceleration region and the deceleration region is defined as a constant speed moving region at a skip speed. Then, since F (a) has been determined, step S31
Then, add 1 to a and proceed to the study of F (a + 1). Step S
When i is 500 or less in 29, F (a) is not determined, the process proceeds to step S32, i = 1 is set again, and a continuous non-recorded column is searched.

When it is determined whether or not the skip control is to be performed for all 2880 columns as described above, the process proceeds to step S33, and the constant speed movement at the recording speed is performed except for the column for which the skip control is confirmed in step S30. Then, the creation of the carriage speed management table is completed.

Although not shown in the figure, it is assumed that acceleration up to the recordable speed and deceleration from the recordable speed are performed as usual.

As described above, by setting the acceleration area, the skip speed area, and the deceleration area in step S30, it is possible to increase the moving speed of the carriage in the blank portion above a predetermined level.

(Fourth Embodiment) In the third embodiment, the speed of the carriage for detecting and changing the continuous non-recording area, that is, the skip speed is one. Therefore, if the skip speed is set low, Even if the recording area is wide and sufficient time can be spent for ramping up and down and the skipping speed can be increased, the skipping speed is low. Conversely, if the skipping speed is set high, the non-recording area becomes narrow. Since it is not possible to spend sufficient time to ramp up and ramp down, it often happens that the vehicle cannot run at skip speed.

Therefore, in the fourth embodiment, in the recording apparatus having the structure according to the third embodiment, a plurality of skip speeds are set, the skip speed is changed according to the width of the non-recording area, and the skip traveling is efficiently performed. The throughput is improved more than that of the above-mentioned embodiment.

FIG. 12 is an explanatory diagram showing the relationship among the print pattern, print speed, and carriage position in one line in the fourth embodiment. FIG. 13 shows a movement management cable for the carriage in the fourth embodiment. Hereinafter, the operation part different from the third embodiment will be described with reference to both drawings.

In FIG. 12, two kinds of skip speeds are prepared, and the skip speed A is faster than the skip speed B. Since the non-recording area 1 is wide in the printing range 1 and the speed can be increased to the skip speed A, the skip traveling is performed at the skip speed A. On the other hand, the print range 2 is narrower than the print range 1 in the non-recording area 2 and cannot be increased to the skip speed A. Therefore, the skip traveling is performed at the skip speed B.

Next, an outline of the control flow will be described with reference to FIG.

The distance in the carriage scanning direction required to ramp up from the recording speed to the skip speed A is Dup.
A, the distance required to ramp down from the skip speed A to the recording speed is DdownA, the distance required to ramp up from the recording speed to the skip speed B is DupB, and the distance required to ramp down from the skip speed B to the recording speed Is DdownB, and the width of the non-recording area is Wskip.

In step 401, the carriage is ramped up for printing. When the recording speed is reached, it is judged whether it is a recording area or a non-recording area, and if it is a recording area, step 4
In step 03, printing is performed while moving at a constant recording speed.
If it is the non-recording area, the process proceeds to step 404 and thereafter to determine whether to perform skip traveling.

In step 404, it is determined whether or not skipping can be performed at high speed. That is, when the width Wskip of the non-recording area is larger than the sum of DupA and DdownA, the process proceeds to step 405 and skips at the skip speed A. However, when Wskip is smaller than the sum of DupA and DdownA, the process proceeds to step 406 and it is determined whether skipping at low speed is possible. That is, the width Wskip is DupB
If it is larger than the sum of DdownB and DdownB, the routine proceeds to step 407, skips at the skip speed B, and Wskip is D.
When it is smaller than the sum of upB and DdownB, the constant speed movement is performed at the recording speed (step 408). When the above operation is repeated and scanning of the recording range of one line is completed, the process proceeds from step 409 to step 410, and the carriage is ramped down and stopped.

Although two kinds of skip speeds are set in the fourth embodiment, it is also possible to further increase the skip speed and perform skip more efficiently. Also, the third
As described in the embodiment, it is also possible to prepare a scanning speed control table of the carriage in advance and perform scanning according to the table.

In any of the third and fourth embodiments of the present invention, not only reception of raster image data but also image data sent by other methods can be similarly controlled. Further, since the non-recorded area is detected after converting into print data, not only image information but also character data can be similarly controlled. Therefore,
It is possible to easily implement skipping of mixed data of images and characters and skipping of modified characters.

In each of the third and fourth embodiments, the recording head 1 can be configured as recording means of various types, and particularly in the bubble jet type, high efficiency recording is possible.

As described above, in the third and fourth embodiments, when the image information is recorded, the effective recording position of the image information received by the recording device side is analyzed and a certain number of non-constant images are recorded during one scan. When there is a recording portion, the throughput of the non-recording portion can be improved by making the moving speed of the carriage faster than during recording. This effect is particularly noticeable when information with vertical ruled lines is transferred in the form of an image.

[0071]

As described above, according to the present invention, the carriage drive control is performed when the non-recording area of the image information received from the host system is detected and the non-recording area having a certain width or more is present in the main scanning direction. The throughput can be improved by selecting the skip speed higher than the recording speed by the means and moving the carriage in the non-recording area at a speed faster than during recording.

Further, the character information in the received information is expanded into the image information so that the throughput can be improved in the same manner as described above even if the received information is the character information or the image information and the character information are mixed. You can measure improvement.

[Brief description of drawings]

FIG. 1 is an explanatory diagram of print data positions in two lines, carriage scanning, and paper feeding according to the first embodiment.

FIG. 2 is an explanatory diagram of a carriage movement management table according to the first embodiment.

FIG. 3 is a block diagram of the first embodiment.

FIG. 4 is a perspective view of a main mechanical portion of the first embodiment.

FIG. 5 is a printer control flowchart of the first embodiment.

FIG. 6 is an explanatory diagram of image output and carriage scanning in two lines in the second embodiment.

FIG. 7 is a printer control flowchart of the second embodiment.

FIG. 8 is an explanatory diagram of print data in one line and carriage scanning in the third embodiment.

FIG. 9 is an explanatory diagram of a carriage movement management table according to the third embodiment.

FIG. 10 is a flowchart of a third embodiment.

FIG. 11 is a non-recording part detection flowchart in one line of the third embodiment.

FIG. 12 is an explanatory diagram of a print pattern in one line and carriage scanning in the fourth embodiment.

FIG. 13 is an explanatory diagram of a carriage movement management table according to the fourth embodiment.

FIG. 14 is a flowchart of the fourth embodiment.

[Explanation of symbols]

 1 Recording head 2 Carriage 3 Carriage motor 6 Paper feed motor 7 Recording paper V1 Recording speed V2 Skip speed

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Yoshihiro Nakagawa 3-30-2 Shimomaruko, Ota-ku, Tokyo Canon Inc. (72) Takashi Kasahara 3-30-2 Shimomaruko, Ota-ku, Tokyo Canon Within the corporation

Claims (8)

[Claims] 1. A recording head mounted on a carriage movable in the main scanning direction, a carriage drive control means for moving the carriage by selecting a predetermined recording speed or a skip speed higher than the recording speed, and a recording medium as a sub-recording medium. A serial-type recording apparatus that includes a recording medium drive control unit that moves in the scanning direction to feed a line and that receives and records image information, and detects a non-recording area of the received image information and keeps the same in the main scanning direction. A recording apparatus, wherein when there is a non-recording area having a width or more, the carriage is moved at a portion of the non-recording area at the skip speed. 2. A recording head mounted on a carriage movable in the main scanning direction, a carriage drive control means for moving the carriage by selecting a predetermined recording speed or a skip speed higher than the recording speed, and a recording medium as a sub-recording medium. A serial-type recording device, comprising: a recording medium drive control unit that moves in the scanning direction to feed a line; and detects a non-recorded area of the expanded image information by expanding the received character information into image information and recording the image information. When there is a non-recording area having a certain width or more in the main scanning direction, the carriage is moved in the non-recording area at the skip speed. 3. A recording head mounted on a carriage movable in the main scanning direction, a carriage drive control means for moving the carriage by selecting a predetermined recording speed or a skip speed higher than the recording speed, and a recording medium as a sub-device. A serial type recording apparatus, comprising: a recording medium drive control unit that moves in a scanning direction to feed a line; and character information in received information is expanded into image information and recorded together with image information in the received information. A non-recording area between the received image information and the expanded image information is detected, and when there is a non-recording area having a certain width or more in the main scanning direction, the carriage is moved at the non-recording area at the skip speed. Recording device. 4. The range for detecting a non-recording area in the main scanning direction is a range from a recording end position of a line to be recorded first to a recording start position of a line to be recorded next. The recording device according to any one of 1 to 3. 5. When the non-recording area in the main scanning direction is wider than a width capable of both ramping up from the recording speed to the skip speed and ramping down from the skip speed to the recording speed, the portion of the non-recording area is The carriage is moved at a skip speed, wherein the carriage is moved.
The recording device according to any one of 1. 6. The carriage has two or more kinds of different skip speeds, and the speed of the skip speed is selected corresponding to the width of the non-recording area in the main scanning direction to move the carriage. The recording device according to claim 1, wherein 7. The recording apparatus according to claim 1, wherein the skip speed is equal to the speed during thinning printing. 8. The recording apparatus according to claim 1, wherein the recording head is a bubble jet recording means.