KR19980047003A - Speed control method of multifunction drive motor - Google Patents

Abstract

The present invention relates to a speed control method of a multifunction drive motor that allows the components to operate effectively by controlling the speed of the drive motor differently for each component of the multifunction device during printing and reading a document.

An object of the present invention is to change the speed of the transfer motor when transferring the document or the chloroplast, and even when using the original shuttle reading unit in the multifunction printer using the inkjet reading unit, the speed of the carriage driving motor during printing and reading the document The different controls are appropriate for the components so that the components can operate effectively.

In the speed control method of the multi-function drive motor of the present invention for achieving the above object, the feed motor for the transfer of the original and the green body is driven and controlled at different speeds according to each mode of the initial selection mode, When the original and the chloroplast are transferred to the printing area and the original reading area, the driving speed of the one carriage motor is driven to drive the image forming unit and the shuttle reading reader in accordance with the respective modes. It is characterized in that the control of the mode to read the document and to print the chloroplast.

Description

Speed control method of multifunction drive motor

The present invention relates to a speed control method for a multifunction drive motor, and more particularly, a multifunction device for controlling the speed of a drive motor differently to be suitable for each component of the multifunction device during printing and reading a document. It relates to a speed control method of a drive motor.

First of all, the term "locked body" as used herein refers to a recorded object such as printing paper and the image forming body refers to printing means such as an inkjet head.

Today, office automation (OA) devices such as printers, scanners, and fax machines are widely used. Each office automation device is being developed at high performance to expand its unique capabilities, resulting in more expensive products. On the other hand, by developing each of the office automation equipment that was used independently as a single product has been produced to reduce the economic burden on the user. Such a device is generally called a multifunction device.

Figures 1a to 1b is a multifunction printer equipped with an electrophotographic printing means and an array reading means, Figure 1a is a block diagram showing a multifunction device in which the document and the green body are conveyed in the same path, the same as shown Read and print while loading originals and chloroplasts in position and transporting them.

FIG. 1B is a block diagram showing a multifunction device in which the document and the locator stacking means are different from each other. As shown in the drawing, the document and the chloroplast are loaded at different positions, picked up, and transported to perform reading and printing.

Briefly referring to the operation of the multifunction device shown in Fig. 1, the document and the above-mentioned body is picked up and transferred by the transfer roller 2 to the array type reading unit 3, and then read through the image forming unit 4 through an image forming unit. After the printing is performed by (5), the document and the green body are discharged to the external discharge table 7 by the discharge roller (not shown) via the fixing unit 6.

At this time, as the main motor (not shown) generating power for the transfer of the green body and the original is driven at the same speed during printing and fax transmission, the printing speed has been limited to the original reading speed of the reading unit.

In other words, the printing part using the electrophotographic method has a very fast printing speed and there is a limit to the time to read the originals, and the characteristics of the product that can be read even if the speed of the printing part is slowed down for low cost should be utilized. As a result, the speed standard always had to rely on the reading unit, thereby limiting the role of the printing unit.

2 and 3 are a multifunction apparatus equipped with a printing means using an inkjet printing method and a reading means of a shuttle method, and FIG. 2 is a carriage drive for reciprocating a printhead carriage 21 which is an image forming apparatus using an inkjet printing means. When the printhead carriage 21 and the original shuttle reading portion 26 are installed on different carriage shafts 24 and 25 so as to be driven by the motor 22, FIG. 3 shows one carriage shaft 24 on one carriage shaft. This is the case where the printhead carriage 21 and the document shuttle reading portion 26 are provided in the same place.

As shown in Fig. 2 and Fig. 3, the power means of the multifunction apparatus for shuttle reading the reading means in the direction orthogonal to the original conveying direction to read the originals is used for the document conveying for the original reading and the printing on the mem- brache. It consists of one conveying motor (not shown) and one carriage drive motor 22 for conveying a sieve.

For reference, the multifunction device configured as shown in FIG. 2 is the same as the patent application No. 96-51893 filed by the present applicant.

Since the document feed speed of the multifunction device and the read speed of the document shuttle reading section 26 of the multifunction device thus constructed must depend on the print speed and the printing width of the print head due to the characteristics of the inkjet, it is very difficult to cope with the shuttle reading section and also the reading speed. Tended to be relatively slow.

Fig. 4 is a multi-function machine equipped with a shuttle type printing means and an array type reading means, in which an array type original reading portion 41 is installed on the same transport path of the above-described lock and the original, so that one main motor 22 is provided. In the apparatus for transferring the originals and the chloroplasts, it was driven with the same path and the same speed when transferring the originals or the chloroplasts. As the array reading unit 41 is applied to the inkjet printing unit as described above, the document can be transported at a higher speed than the actual printing speed, but depending on the printing speed, the array reading unit 41 has a result of degrading the characteristics of the array reading unit 41.

All the multi-function devices described above in FIGS. 1 to 4 transfer the originals and the chloroplasts through the same transfer path to the same print area and the same read area, so that the originals are read according to the contents of data on each original to read the read information from the memory. The document feed speed does not match the print speed because the time spent for coding (i.e. compression) transmission is not constant.

In addition, in the shuttle reading apparatus, the processing speed of the data according to the read data corresponding to one line of the original and the transmission speed according to the coding data is the same as the shuttle speed of the printhead carriage 21 at the time of printing. I couldn't keep it.

An object of the present invention is to change the speed of the transfer motor when transferring the document or the chloroplast, and even when the document shuttle reading unit is used in the multifunction printer using the inkjet reading unit, the speed of the carriage driving motor during printing and reading the document is determined by The present invention provides a method of controlling the speed of an all-in-one driving motor to control components differently so as to effectively operate the components.

1 is a multifunction printer equipped with a printing means using an electrophotographic development method and an array reading method.

(a) is a block diagram showing a multifunction machine in which a document and the chloroplast are transported in the same path.

(b) is a block diagram which shows the multifunction machine in which an original and the said loading body have different loading means.

2 is a multifunction printer in which a printing means using an inkjet printing method and a shuttle reading means are correspondingly mounted.

(a) is a side view of the multifunction device,

(b) is a front view of a multifunction machine.

3 is a multifunction printer in which the printing means using the inkjet printing method and the reading means of the shuttle method are integrally mounted.

(a) is a side view of the multifunction device,

(b) is a front view of a multifunction machine.

4 is a multifunction machine equipped with a shuttle printing means and an array reading means,

(a) is a side view of the multifunction device,

(b) is a front view of a multifunction machine.

FIG. 5 is a flowchart illustrating a first embodiment in which the speed control method of the multifunction drive motor of the present invention is applied to a multifunction device equipped with an electrophotographic or inkjet printing unit and an array reading unit.

FIG. 6 is a flowchart illustrating a second embodiment in which the speed control method of the multifunction drive motor of the present invention is applied to a multifunction apparatus equipped with an inkjet printing unit and a shuttle reading unit.

Explanation of Signs of Major Parts of Drawings

1: Original sensor 2: Feed roller

3: array type reading part 4: reg roller

5: image forming part 6: fixing unit

7: discharge tray 21: printhead carriage

22: carriage motor 23: storage cassette

24, 25: carriage shaft 26: the original shuttle reading portion

41: array type reading unit

In the speed control method of the multi-function drive motor of the present invention for achieving the above object, the feed motor for the transfer of the original and the green body is driven and controlled at different speeds according to each mode of the initial selection mode, When the original and the chloroplast are transferred to the printing area and the original reading area, the driving speed of the one carriage motor is driven to drive the image forming unit and the shuttle reading reader in accordance with the respective modes. It is characterized in that the control of the mode to read the document and to print the chloroplast.

Hereinafter, the objects, features, and advantages of the present invention described above will be described in more detail with reference to the preferred embodiments of the present invention shown in the accompanying drawings.

5 is a flowchart illustrating a first embodiment in which the speed control method of the multifunction apparatus drive motor of the present invention is applied to the multifunction apparatus of FIGS. 1 and 4.

As shown, in a multifunction printer equipped with an electrophotographic or inkjet printing unit and an array reading unit, in order to transfer the green body at a speed for data printing if the current operation mode of the multifunction device is a printing mode. A print mode setting step (S1) of setting a driving condition of the transfer motor; and driving of the transfer motor to transfer the lock body at a speed for printing the received data if the current mode of operation of the multifunction device is a fax reception mode. Set the fax mode setting step (S2) to set the condition, and if the current mode of operation of the multifunction device is a copy mode, after setting the driving conditions of the feed motor according to the feed speed of the original for reading the original, the original is read and the read A copy setting step (S3) of setting a drive condition of the transfer motor to a print mode in order to print the collected data on the lock body; If the current mode of operation of the multifunction device is a transmission mode, the transmission mode setting step (S4) of reading the original and transmitting the read data after setting the driving conditions of the transfer motor according to the feed speed of the original for reading the original is included. do.

Referring to FIGS. 1, 4, and 5, an operation of a multi-function device in which the document or the above-described body shares the conveying path of the print area of the document reading unit and the image forming unit and transfers the document and the body by one feeding motor is described. Looking at it as follows,

The originals and the above-mentioned masses are picked up one by one by the pick-up and stacking means, and are transferred to the area of the original reading portion (conversion) by the feed roller 2. The printing from the operation panel or the PC before the transfer of the originals or the above-mentioned masses is carried out. Each function mode is selected according to the command.

The transfer motor control according to the mode selection for each function is as follows.

First, when a fax is received from the outside, the central processing unit (not shown) recognizes that the reception mode is set and controlled by setting the transfer motor of the original or the above-mentioned body into the drive switching mode to the transfer motor corresponding to the printing for receiving (step 51). , 52, 53).

On the other hand, if a signal for receiving a fax is not input and the original to be read by the original sensor 1 is detected, it is determined whether or not a copy request is made to the multifunction apparatus (steps 51, 54, 55).

As a result of determining whether the copy request is detected, when the copy request is detected, the operation mode of the multifunction apparatus is set to the copy mode, and the driving condition of the feed motor is set to the read mode (steps 56 and 57). That is, the drive speed of the feed motor is set in consideration of the time when the document is read by the reading unit.

After setting the driving conditions of the feed motor, the document is transferred and read, and the read data is stored in the storage means (not shown) (steps 58 and 59).

After storing the read data, the transfer motor driving condition is set to the print mode to print the read data (step 60).

After setting the transfer motor driving condition to the print mode, the presence or absence of the chloroplast is detected and if the chlorop is present, printing is performed (steps 61 and 63).

If the chlorop is not present, the display unit (not shown) is displayed on the display unit (not shown), and then step 61 is performed (step 62).

If it is determined in step 55 whether the copy request is detected, if the copy request is not detected, the operation mode of the multifunction apparatus is set to the transmission mode, and the driving condition of the feed motor is set to the read mode (steps 64 and 65).

After setting the driving condition of the feed motor to the read mode, when the transmission telephone number is input, the document to be transmitted is transferred at the set speed and reading is performed (steps 66 and 67).

After reading the original to be transmitted, the read data is stored in a storage means (not shown), and channel coding for transmission is performed (step 68).

After coding the read fax data, the coded data is transmitted via the modem to the set telephone number (step 69).

In step 51, if a signal for receiving a fax is not input and a print command is requested from the PC, the operation mode of the multifunction apparatus is set to the print mode (steps 70 and 71).

After setting the operation mode of the multifunction device to the print mode, the transfer motor driving condition is set to the print mode to print the print data transmitted from the PC, and then printing is performed if the above-mentioned block exists (steps 72, 73, and 61). , 63).

As described above, if the mode change at the time of initial printing or fax transmission is determined according to a signal from an operation panel or an external source, the document or the above-mentioned object is arranged in the array type reading unit 3, 41 and the image forming unit 5. , 21) share the transport path and play the role of each condition (i.e., document transfer / printing), and are loaded by the transport means into the discharge means to complete the function.

On the other hand, in Fig. 4, as shown in Fig. 1, the driving conditions of the original or the locus transfer motor (not shown) are converted according to the mode setting for each function, and the printhead carriage driving motor (including fax reception) is used for printing or copying. 22) is driven at the same speed and only differs in the speed of the above-described feed motor.

FIG. 6 is a flowchart illustrating a second embodiment in which the speed control method of the multifunction drive motor of the present invention is applied to a multifunction apparatus equipped with an inkjet printing unit and a shuttle reading unit. As shown, if the current mode of operation of the all-in-one is a print mode, to set the driving conditions of the transfer motor to transfer the lock body at a speed for data printing and to print the data on the lock body at a constant speed. Print mode setting step (S5) of setting the driving conditions of the carriage motor, and if the current mode of operation of the multifunction machine is a fax reception mode, driving the transfer motor to transfer the lock body at a speed for printing the received data. A fax mode setting step (S6) of setting a driving condition of the carriage motor to set a condition and printing the data on the lock body at a constant speed, and for reading the original if the current mode of operation of the multifunction device is a copy mode. To set the driving conditions of the transfer motor according to the feed speed of the original, and to read data from the original Copy setting step (S7) of setting the driving conditions of the carriage motor to control the reciprocation speed of the document shuttle reading unit, reading the originals, and setting the driving conditions of the transfer motor to the print mode, and the current multifunction device operation. If the mode is the transmission mode, the carriage condition is set to match the feed speed of the document for reading the document, and the carriage for controlling the reciprocation speed of the document shuttle reading unit to read data from the document. A transmission mode setting step S8 for reading the original and transmitting the read data after setting the driving conditions of the motor is included.

The multifunction printer equipped with the inkjet printing unit and the shuttle reading unit of Figs. 2 and 3 has the original or the chloroplast sharing the transfer path of the printing area of the original reading unit and the image forming unit, The carriage is transported, and a single carriage motor 22 reciprocates the inkjet printhead carriage 21 and the document shuttle reading portion 26, which are the upper parts, in the direction orthogonal to the transport direction of the document or the lock. Characterized in that.

Referring to Figure 6 attached to the operation of the present invention in the multifunction device shown in Figures 2 and 3 described above are as follows.

The originals and the Locus are picked up one by one by the pick-up and stacking means, and are transferred to the area of the original reading area by the transfer roller. The mode is selected.

The transfer motor control according to the mode selection for each function is as follows.

First, when a signal relating to fax reception has been input, the multifunction apparatus is set to the fax reception mode and the driving condition of the feed motor is set to the print mode (steps 81, 82, 83).

After setting the drive condition of the feed motor to the print mode, the drive condition of the carriage motor 22 is set (step 84).

If a signal for receiving a fax is not input and a document to be read is detected by an original sensor (not shown), it is determined whether a copy request is made to the multifunction device (steps 81, 85, 86).

As a result of determining whether or not a copy request is detected, when the copy request is detected, the operation mode of the multifunction apparatus is set to the copy mode, and the driving condition of the feed motor is set to the read mode (steps 87 and 88). That is, the drive speed of the feed motor is set in consideration of the time when the document is read by the reading unit.

After setting the driving conditions of the feed motor, the driving conditions of the carriage motor 22 are set for the reciprocating motion of the print head carriage 21 and the document shuttle reading section 26 (step 89).

After setting the driving conditions of the carriage motor, the document is transferred and read, and the read data is stored in the storage means (not shown) (steps 90 and 91).

After storing the read data, the transfer motor driving condition is set to the print mode to print the read data (step 92).

After setting the transfer motor driving condition to the print mode, it detects the presence or absence of the chloroplast and if it is present, printing is performed (steps 93 and 95).

If the locator does not exist, the display unit (not shown) is displayed on the display unit (not shown), and then step 93 is performed (step 94).

If it is determined in step 86 whether or not the copy request is detected, if the copy request is not detected, the operation mode of the multifunction apparatus is set to the transmission mode, and the driving condition of the feed motor is set to the read mode (steps 96 and 97).

After setting the driving conditions of the feed motor to the read mode, the driving conditions of the carriage motor 22 are set for the reciprocating motion of the document shuttle reading unit 26 (step 98).

After setting the driving condition of the carriage motor, when the transmission telephone number is input, the original to be transmitted is transferred at the set speed and reading is performed (steps 99 and 100).

After reading the original to be transmitted, the read data is stored in a storage means (not shown), and channel coding for transmission is performed (step 101).

After coding the read fax data, the coded data is transmitted via the modem to the set telephone number (step 102).

In step 81, if a signal relating to fax reception is not input and a print command is requested from the PC, the operation mode of the multifunction apparatus is set to the print mode (steps 103 and 104).

After setting the operation mode of the all-in-one to the print mode, the transfer motor driving condition is set to the print mode to print the print data transmitted from the PC, and the carriage motor 22 is used for the reciprocating motion of the print head carriage 21. The driving conditions are set (steps 105 and 106).

After setting the driving conditions of the transfer motor (not shown) and the carriage motor 22, printing is performed if the above-mentioned block exists (steps 93 and 95).

As described above, when the originals or the locators are picked up one by one from the storage cassette 23, they are transferred to the document shuttle reading unit 26 and the print head carriage 21 by the transfer means. The transfer motor (not shown) for transfer is controlled by the central processing unit in accordance with the initial selection mode (i.e., copy mode, fax transmission mode, fax reception mode and printing mode), and the motor drive is controlled according to each mode. When the original or the locust is transferred to the print area of the head carriage 21 or to the original reading area, the print head carriage 21 and the original shuttle reading unit 26 driven by one same carriage motor 22 according to each mode. ) Is switched to the driving conditions for each mode, i.e., controlled by the central processing unit to complete the reading or printing of the originals while driving, and discharging means by the conveying means. Discharged (not shown).

As described above, according to the present invention, in a multi-function machine having a fax transmission / reception / copying / reading function, a document or the above-mentioned green body is transferred by the same motor, and the function of driving the image forming unit and the document shuttle reading unit by the same carriage motor is combined with the function. Therefore, it is possible to implement a device for pursuing lower cost, and technically, to control the speeds of the carriages of the respective originals or the above-mentioned chloroplast transfer motors, the original shuttle shuttles and the image forming units according to the mode setting for each function. Therefore, each function can be performed smoothly, and the function can be improved by a compact structure independently of each function.

Although the preferred embodiments of the present invention have been described in detail above, those skilled in the art will appreciate that the present invention may be modified without departing from the spirit and scope of the invention as defined in the appended claims. It will be appreciated that modifications or variations may be made. Therefore, changes in the future embodiments of the present invention will not be able to escape the technology of the present invention.

Claims (8)

In a multifunction machine in which a document and the locator share a transfer path to a reading area of an original reading part and a printing area of an image forming part, and transfer the original and the LOCK body by one feed motor, In And the feed motor for transferring the document and the green body is controlled to be driven at different speeds according to the respective modes of the initial selection mode. The method of claim 1, wherein the selection mode, A copy control mode, a fax transmission mode, a fax reception mode, and a printing mode, and the speed control method of the all-in-one drive motor characterized in that it is determined according to a signal from the outside. The speed control method of claim 2, wherein the selection mode is determined by an operation panel. The method of claim 1, A print mode setting step of setting a driving condition of the transfer motor to transfer the lock body at a speed for data printing if the operation mode of the current multifunction device is a print mode; A fax mode setting step of setting a driving condition of the transfer motor to transfer the lock body at a speed for printing received data if the operation mode of the current multifunction device is a fax reception mode; If the current mode of operation of the all-in-one is a copy mode, after setting the driving conditions of the transfer motor according to the feed speed of the original for reading the original, the transfer is carried out for reading the original and printing the read data on the lock body. A copy setting step of setting a driving condition of the motor to a print mode; And If the current mode of operation of the multifunction device is a transmission mode, the transmission mode setting step of reading the original and transmitting the read data after setting the driving conditions of the transfer motor according to the feed speed of the original for reading the original Speed control method of a multifunction drive motor. The document and the locus share the conveyance path to the reading area of the original shuttle reading part and the print area of the image forming part, and transfer the document and the loch body by one feeding motor, and the image forming part by one carriage motor. In the multifunction apparatus for reciprocating in the direction orthogonal to the conveyance direction of the original and the chloroplast in the original shuttle reading portion, the speed control method of the multifunction drive motor, When the feed motor for conveying the original and the chloroplast is driven and controlled at different speeds according to each mode of the initial selection mode, and the manuscript and the transcript are transferred to the printing area of the image forming unit and the original reading area, According to the respective modes, the image forming unit and the shuttle reading reader control the driving speed of the one carriage motor in accordance with the respective modes in order to drive the respective modes, thereby reading the document and printing the green body. Speed control method of the multi-function drive motor, characterized in that for performing. The method of claim 5, wherein the selection mode, A copy control mode, a fax transmission mode, a fax reception mode, and a printing mode, and the speed control method of the all-in-one drive motor characterized in that it is determined according to a signal from the outside. The method of claim 6, And said selection mode is determined by an operation panel. Speed control method of multifunction drive motor. The method of claim 6, If the current mode of operation of the multifunction device is a print mode, the driving condition of the transfer motor is set to transfer the lock body at a speed for data printing, and the carriage motor is driven to print the data on the lock body at a constant speed. A print mode setting step of setting conditions; If the current mode of operation of the multifunction device is a fax reception mode, to set the driving conditions of the transfer motor to transfer the lock body at a speed for printing the received data, and to print the data on the lock body at a constant speed. A fax mode setting step of setting driving conditions of the carriage motor; If the current mode of operation of the multifunction device is a copy mode, the driving conditions of the feed motor are set according to the feed speed of the original for reading the original, and the reciprocating speed of the original shuttle reading is controlled to read data from the original. A copy setting step of setting an operating condition of the carriage motor to read an original and setting the driving condition of the transfer motor to a print mode for setting the driving condition of the carriage motor; And If the current mode of operation of the multifunction device is a transmission mode, the driving conditions of the feed motor are set according to the feed speed of the original for reading the original, and the reciprocating speed of the original shuttle reading is controlled to read data from the original. And a transmission mode setting step of reading an original and transmitting the read data after setting the driving conditions of the carriage motor.