JP2022085529A - Registration control system - Google Patents

Abstract

To provide a registration control system capable of suppressing work manhours of registration adjustment as one object of the present invention.SOLUTION: According to a certain mode of the present invention, a registration control system 20 controls registration adjustment of a printing unit 10 of a multicolor printing system. The registration control system includes a machine side control unit 40 being a fixed type control board for setting a production condition of the printing unit 10 and acquiring registration information about registration of the printing unit 10, and a portable control unit 42 for acquiring the registration information from the machine side control unit 40 to be able to display the registration information. The portable control unit 42 is configured so as to be able to operate the machine side control unit 40.SELECTED DRAWING: Figure 1

Description

The present invention relates to a register control system.

A printing unit that manages misregistration using a register mark is known. Patent Document 1 describes a printing machine including a printing unit having a register mark detecting device. In the web rotary printing press, the paper path length between the printing units of each color fluctuates due to the influence of tension and drying, and the printing unit is operated while adjusting the misregistration. As an example, a register mark affixed to the edge of a web such as paper or film in the width direction is detected in advance, the amount of misregistration is calculated, and the misregistration can be adjusted by a registration adjustment device provided in the printing unit.

Japanese Unexamined Patent Publication No. 2007-021743

The present inventors have studied a register control system for a printing apparatus having a plurality of printing units, and obtained the following recognition. For example, it is conceivable to use a fixed operation panel at a position away from the printing unit for register adjustment for adjusting the misregistration of each printing unit of the printing apparatus. The registration adjustment is performed by operating a registration adjustment device such as a registration roller provided in the printing unit, and the fixed operation panel has a waveform display function indicating the quality of the registration.

Therefore, the operator operates the register adjustment device of the printing unit to make adjustments, and since it is not possible to confirm the quality of the register there, the operator moves to the fixed operation panel and confirms the quality of the register from the waveform display on the fixed operation panel. This adjustment and confirmation work is repeated for each printing unit. In this case, when reciprocating between the fixed operation panel and the register adjustment device, the entire printing device is long, so that the operator's flow line becomes long and the adjustment work man-hours increase.
For these reasons, the printing machine described in Patent Document 1 has a problem from the viewpoint of suppressing the work man-hours for register adjustment.

The present invention has been made in view of these problems, and one of the objects of the present invention is to provide a register control system capable of suppressing the work man-hours for register adjustment.

In order to solve the above problems, the register control system according to an aspect of the present invention is a register control system that controls the register adjustment of the print unit of the multicolor printing printing system, and is a fixed type for setting the production conditions of the printing unit. The control panel includes a machine-side control unit that acquires registration information regarding the register of the printing unit, and a portable control unit that can acquire and display register information from the machine-side control unit. The portable control unit is configured so that the machine-side control unit can be operated.

It should be noted that any combination of the above, and those in which the components and expressions of the present invention are mutually replaced between methods, devices, programs, temporary or non-temporary storage media on which programs are recorded, systems, and the like are also used. It is effective as an aspect of the present invention.

According to an aspect of the present invention, it is possible to provide a register control system capable of suppressing the work man-hours for register adjustment.

It is a block diagram of the multicolor printing system provided with the register control system which concerns on embodiment. It is a block diagram which shows the function and structure of the register control system of FIG. 3 (a) and 3 (b) are graphs showing an example of the detection results of the first register mark detection unit and the second register mark detection unit, respectively. It is a graph which shows an example of the registration error waveform of the registration error waveform of the registration control system of FIG. It is a schematic diagram which shows an example of the display of the portable control unit of FIG. It is a schematic diagram which shows an example of the display of the portable control unit of FIG. It is a schematic diagram which shows an example of the display of the portable control unit of FIG. It is a block diagram of the multicolor printing system provided with the registration control system of the modification. It is a block diagram which shows the function and structure of the register control system of FIG.

Hereinafter, the present invention will be described with reference to each drawing based on a preferred embodiment. In the embodiments and modifications, the same or equivalent components and members are designated by the same reference numerals, and duplicate description thereof will be omitted as appropriate. Further, the dimensions of the members in each drawing are shown in an appropriately enlarged or reduced size for easy understanding. In addition, some of the members that are not important for explaining the embodiment in each drawing are omitted and displayed.

In addition, different components that have something in common shall be distinguished from others by adding "first, second", etc. at the beginning of the name and adding an alphabet at the end, and these will be omitted when generically referred to. Also, terms including ordinal numbers such as 1st and 2nd are used to describe various components, but this term is used only for the purpose of distinguishing one component from other components, and this term is used. The components are not limited by.

[Embodiment]
The register control system 20 according to the embodiment of the present invention will be described with reference to FIGS. 1 and 2. FIG. 1 is a diagram showing a configuration of a multicolor printing system 100 including a register control system 20. FIG. 2 is a block diagram showing the functions and configurations of the register control system 20. The multicolor printing system 100 includes a first printing unit 10A, a second printing unit 10B, and a register control system 20, and performs predetermined multicolor printing on the web 2. When the first printing unit 10A and the second printing unit 10B are generically referred to, they are referred to as a printing unit 10. A printing device in which a plurality of printing units 10 are connected may be referred to as a printing device.

The first printing unit 10A and the second printing unit 10B include a plate cylinder 11, an impression cylinder 12, and a unit control unit 14, respectively. The web 2 is guided along a predetermined transport path by the guide roll 4, and is pressed against the plate cylinder 11 by the impression cylinder 12. A color pattern and a register mark corresponding to the plate cylinder 11 are printed on the web 2. The first printing unit 10A prints the first register mark 6A (not shown in FIG. 1), and the second printing unit 10B prints the second register mark 6B (not shown in FIG. 1). The web 2 targeted by the multicolor printing system 100 may be a web having various levels of translucency. For example, the web 2 is a transparent, translucent or opaque web.

The unit control unit 14 changes various adjustment parameters of the printing unit 10 based on the control of the machine side control unit 40 and the portable control unit 42. In particular, the first printing unit 10A and the second printing unit 10B each include a doctor blade 52 that scrapes off excess ink on the surface of the plate cylinder 11, and a doctor adjusting unit 54 for adjusting the position of the doctor blade 52 and the like. .. Further, the second printing unit 10B includes a register adjusting unit 50.

(Doctor adjustment section)
The doctor adjusting unit 54 will be described with reference to FIG. Due to the improper adjustment of the doctor blade 52, printing stains such as doctor streaks and plate fog occur. The doctor adjusting unit 54 is a mechanism for adjusting the doctor blade 52, and can change the position, angle, pressure, and the like of the doctor blade 52. The doctor adjusting unit 54 of the present embodiment changes the position, angle, pressure, etc. of the doctor blade 52 based on the control of the machine side control unit 40 and the portable control unit 42.

(Registration adjustment section)
The register adjustment unit 50 will be described with reference to FIG. The register adjustment unit 50 is a mechanism for adjusting the misregistration when the misregistration occurs. The printing unit 10B of the present embodiment includes an offset adjusting unit (not shown) in the register adjusting unit 50. The registration adjustment unit 50 controls the registration error compensator to make the registration error (hereinafter referred to as “waveform detection registration error”) detected by the analog waveforms (register signal waveforms A and B described later) indicating the quality of the registration zero. (Not shown) is automatically executed. The offset adjustment unit adjusts the offset between the waveform detection registration error and the actual registration deviation of the printed matter (hereinafter referred to as “substance registration error”). In the present embodiment, the register adjustment unit 50 has an operation unit for adjusting the offset. The operator 3 can operate the register adjustment unit 50 to adjust the offset. By this offset adjustment, the register is adjusted with higher accuracy. Hereinafter, adjusting the offset from the register adjustment unit 50 is referred to as "register adjustment".

The register control system 20 will be described with reference to FIGS. 1, 2, and 3. The register control system 20 detects a register mark printed on the web 2, and identifies a misregistration (waveform detection register error) between the first print unit 10A and the second print unit 10B based on the detection result. , The register error compensator compensates for this error. Further, the register control system 20 provides the operator 3 with an analog waveform indicating the quality of the register. In the present embodiment, the operator 3 can perform registration adjustment from the registration adjustment unit 50 based on the provided analog waveform in the vicinity of the second printing unit 10B.

The register control system 20 of the present embodiment includes a register detection unit 30, a machine-side control unit 40, a portable control unit 42, a register adjustment unit 50, and a doctor adjustment unit 54. The register detection unit 30 detects the register mark printed on the web 2 and transmits the detection result to the machine side control unit 40. The machine-side control unit 40 is a fixed control panel for setting production conditions of a plurality of printing units 10. The machine-side control unit 40 can communicate with each printing unit 10. The machine-side control unit 40 can acquire and display registration information regarding registration from each printing unit 10.

The portable control unit 42 is a portable control panel. The portable control unit 42 can acquire registration information from the machine side control unit 40 and display it. The machine side control unit 40 and the portable control unit 42 will be described later.

The register detection unit 30 will be described with reference to FIG. The register detection unit 30 has a first sensor 30a that detects the first register mark 6A printed by the first printing unit 10A, and a second sensor 30b that detects the second register mark 6B printed by the second printing unit 10B. And, including.

The first sensor 30a and the second sensor 30b are arranged at an interval L. The interval L corresponds to the distance between the first register mark 6A and the second register mark 6B when there is no misregistration. The first sensor 30a and the second sensor 30b are optical sensors and include a light source 32, an optical system 33, and a light receiving element 34, respectively.

The light source 32 irradiates the web 2 with light. The light source 32 specifically illuminates the area through which the register mark passes. The light emitted from the light source 32 is applied to the register mark, reflected there, collected by the optical system 33, and received by the light receiving element 34. Alternatively, the light emitted from the light source passes through the web 2 and irradiates the background portion, is reflected by a reflector (not shown), passes through the web 2 again, is collected by the optical system 33, and is collected by the light receiving element 34. Is received by. The optical system 33 is configured by using a known technique.

The light receiving element 34 is, for example, a photodiode. The light receiving element 34 converts the received light into a current signal and outputs it. The magnitude of this current signal is the magnitude obtained by integrating the product of the intensity of the received light and the light receiving sensitivity for each wavelength. That is, the light receiving element 34 outputs a current signal corresponding to the received light. The current signal is converted into a voltage signal by a current-voltage conversion circuit (not shown) and output to the machine-side control unit 40.

The machine-side control unit 40 will be described with reference to FIG. Each block of the machine-side control unit 40 and the portable control unit 42 shown in FIG. 2 can be realized by elements and mechanical devices such as a computer CPU (Central Processing Unit) in terms of hardware, and in terms of software. Is realized by computer programs, etc., but here, the functional blocks realized by their cooperation are drawn. Therefore, it is understood by those skilled in the art who have touched this specification that these functional blocks can be realized in various forms by combining hardware and software.

The machine side control unit 40 includes a first register mark detection unit 44a, a second registration mark detection unit 44b, a misregistration detection unit 46, a parameter acquisition unit 40a, an operation input unit 40b, a display unit 40c, and parameters. It includes a control unit 40d, a doctor control unit 40e, and a communication unit 40f.

First, the first register mark detection unit 44a, the second register mark detection unit 44b, and the misregistration detection unit 46 are placed between the first printing unit 10A and the second printing unit 10B based on the detection result of the registration detection unit 30. The mechanism for detecting misregistration will be described.

The first register mark detection unit 44a detects the first register mark 6A based on the signal output from the first sensor 30a. The first register mark detection unit 44a compares the signal strength of the signal output from the first sensor 30a with a predetermined detection threshold value, and for example, when the signal strength exceeds the detection threshold value, the first register mark 6A is at that timing. Is detected (the first register mark 6A has reached the detection area). The second register mark detection unit 44b detects the second register mark 6B based on the signal output from the second sensor 30b. The second register mark detection unit 44b is configured in the same manner as the first register mark detection unit 44a.

The misregistration detection unit 46 acquires detection results from each of the first registration mark detection unit 44a and the second registration mark detection unit 44b. Based on these detection results, the misregistration detection unit 46 determines whether or not there is a misalignment in the printing position that occurs between the plate cylinders 11, that is, there is a misregistration.

3 (a) and 3 (b) are graphs showing an example of the detection result by the first register mark detection unit 44a and the second register mark detection unit 44b, respectively. The graph g1 of FIG. 3A shows the signal waveform of the first register mark 6A detected by the first register mark detection unit 44a (hereinafter referred to as “register signal waveform A”), and is the graph of FIG. 3 (b). g2 shows the signal waveform of the second register mark 6B detected by the first register mark detection unit 44a (hereinafter, referred to as “register signal waveform B”).

As described above, the first sensor 30a and the second sensor 30b are arranged at an interval L, and when there is no misregistration, the first register mark 6A and the second register mark 6B are also printed at an interval L, so that the register is registered. When no deviation occurs, the first register mark 6A and the second register mark 6B are detected at substantially the same timing. Therefore, the first time t1 when the first register mark 6A is detected by the first register mark detection unit 44a and the second time t2 when the second register mark 6B is detected by the second register mark detection unit 44b are substantially. When the same is true, the misregistration detection unit 46 determines that no misregistration has occurred. On the other hand, when the first time t1 and the second time t2 are different, the misregistration detection unit 46 registers the difference between the first time t1 and the second time t2 by the feed rate of the web 2 in the traveling direction. It is determined that a deviation has occurred.

Further, the misregistration detection unit 46 detects the magnitude of the misregistration (hereinafter referred to as “registration error”) based on the registration signal waveform A and the registration signal waveform B, and obtains a registration error waveform indicating a time change of the registration error. Generate. The graph g3 of FIG. 4 is a graph showing an example of a registration error waveform. By displaying the registration error waveform (graph g3), the operator 3 can confirm the change in the registration error in substantially real time.

Other configurations of the machine side control unit 40 will be described with reference to FIG. The parameter acquisition unit 40a acquires the adjustment parameters of each printing unit 10 via the unit control unit 14. The adjustment parameters of the print unit 10 include the proportional gain of the register error compensator, the sensitivity level of the first and second sensors, and the like. The operation input unit 40b receives an operation input for setting the production conditions of each printing unit 10 and the multicolor printing printing system 100. Further, the operation input unit 40b receives an operation input for displaying each waveform such as the registration signal waveform A, the registration signal waveform B, and the registration error waveform of each printing unit 10. The display unit 40c is a liquid crystal display capable of displaying each waveform such as the registration signal waveform A, the registration signal waveform B, and the registration error waveform.

The parameter control unit 40d controls the adjustment parameters of each print unit 10 based on the operation of the operation input unit 40b. The doctor control unit 40e controls the doctor adjustment unit 54 based on the operation of the operation input unit 40b. The communication unit 40f exchanges information with the portable control unit 42 through wireless communication. The machine-side control unit 40 transmits information regarding the adjustment parameters of the print unit 10, the register signal waveform A, the register signal waveform B, and the register error waveform of each print unit 10 to the portable control unit 42 via the communication unit 40f. The machine-side control unit 40 receives information regarding the operation input received by the portable control unit 42 via the communication unit 40f.

(Portable control unit)
The portable control unit 42 will be described with reference to FIGS. 2, 5, 6, and 7. 5, FIG. 6 and FIG. 7 are schematic views showing an example of the portable control unit 42. The portable control unit 42 is a liquid crystal display with a touch panel, and the display screen changes according to the operation mode. In the screen of the portable control unit 42, the area that accepts touch operations is referred to as an operation input unit, and the area that mainly displays graphs and images is referred to as a display unit. FIG. 5 shows an example of a display screen in the register adjustment mode. FIG. 6 shows an example of a display screen in the doctor adjustment mode. FIG. 7 shows an example of a display screen in the parameter adjustment mode.

The portable control unit 42 of the present embodiment includes an operation input unit 42b, a display unit 42d, and a communication unit 42f. The operation input unit 42b receives an operation input for setting the production conditions of each printing unit 10 and the multicolor printing printing system 100. The operation input unit 42b includes a mode selector 42s for selecting an operation mode such as a register adjustment mode, a doctor adjustment mode, and a parameter adjustment mode.

The portable control unit 42 of the present embodiment can display the waveform generated based on the register information. As shown in FIG. 5, the display unit 42d can display the register signal waveform A (g1) and the register signal waveform B (g2) of the print unit 10. Further, the display unit 42d can display the registration error waveform (g3) as shown in FIG. There is no limitation on the display content of the display unit 42d. According to this configuration, since the operator 3 can confirm the waveform generated based on the register information in the vicinity of each printing unit 10, it is possible to save the trouble of returning to the machine side control unit 40 and confirming it, and the productivity is improved. ..

The communication unit 40f of the portable control unit 42 exchanges information with the machine side control unit 40 through wireless communication. Although there is no limitation on the transmission information, the portable control unit 42 in this example transmits information regarding the operation input received by the operation input unit 42b via the communication unit 40f to the machine side control unit 40. Although there is no limitation on the received information, in the portable control unit 42 of this example, the adjustment parameter of the print unit 10, the register signal waveform A, the register signal waveform B, the register error waveform, etc. of each print unit 10 are transmitted via the communication unit 40f. Information is received from the machine side control unit 40. According to this configuration, the operator 3 can acquire the information of the machine-side control unit 40 in the vicinity of each printing unit 10 and can transmit the operation information, so that the trouble of returning to the machine-side control unit 40 can be saved and the productivity is improved. do.

The portable control unit 42 of the present embodiment can remotely control the machine side control unit 40. For example, by inputting an operation to the operation input unit 42b of the portable control unit 42, the machine side control unit 40 may perform the same operation as when the operation is input to the operation input unit 40b of the machine side control unit 40. can. According to this configuration, the operator 3 can be remotely controlled while checking the state in the vicinity of each printing unit 10, so that it is possible to save the trouble of returning to the machine side control unit 40 and operating it, and the productivity is improved.

The portable control unit 42 of the present embodiment can perform individual adjustment of each printing unit 10 and overall adjustment of the multicolor printing printing system 100. That is, the portable control unit 42 can remotely adjust the individual adjustment of each printing unit 10 via the machine side control unit 40. Further, the portable control unit 42 can remotely adjust the overall adjustment of the multicolor printing printing system 100 via the machine side control unit 40. According to this configuration, the operator 3 can remotely adjust the individual adjustment and the overall adjustment while checking the printing state in the vicinity of each printing unit 10, so that the trouble of returning to the machine side control unit 40 for adjustment can be saved. , Productivity is improved.

The portable control unit 42 of the present embodiment can control the posture of the doctor blade 52 of each printing unit 10. When adjusting the doctor, the portable control unit 42 is switched to the doctor adjustment mode to display the registration error waveform (g3) (FIG. 6). In this state, the operator 3 operates the operation input unit 42b of the portable control unit 42 while visually checking the print stains in the vicinity of the print unit 10 or by the detection means for detecting them. As a result, the doctor adjusting unit 54 is controlled, and adjustments are made to change the position, angle, pressure, etc. of the doctor blade 52. In this example, the quality of the state of the doctor blade 52 is displayed as the amplitude of the periodic fluctuation of the register error waveform (g3) of the display unit 42d, so the operation input unit 42b is operated so that this amplitude becomes small. According to this configuration, the operator 3 can make adjustments while checking the state of the doctor blade 52 in the vicinity of each printing unit 10, so that it is possible to save the trouble of returning to the machine side control unit 40 and making adjustments, and the productivity is improved.

The portable control unit 42 of the present embodiment can change the adjustment parameters of each printing unit 10. When changing the adjustment parameter of the print unit 10, the portable control unit 42 is switched to the parameter adjustment mode (FIG. 7). As shown in FIG. 7, in the parameter adjustment mode, the adjustment parameter of the print unit 10 received via the communication unit 40f of the machine-side control unit 40 is displayed on the display unit 42d. This display includes textualized information and imaged information. Further, in this mode, the operation input unit 42b for receiving the operation input for changing the adjustment parameter is displayed. In this state, the operator 3 inputs an operation to the operation input unit 42b so as to change the adjustment parameter. As a result, the adjustment parameters of the print unit 10 are changed. In other words, the operation input unit 42b in this mode functions as the adjustment parameter change operation unit 42p. According to this configuration, the operator 3 can change the adjustment parameter while checking the printing state in the vicinity of each printing unit 10, so that the trouble of returning to the machine-side control unit 40 and changing it can be saved and the productivity can be improved. improves.

The registration adjustment will be described with reference to FIG. When adjusting the register, the portable control unit 42 is switched to the register adjustment mode (FIG. 5). As shown in FIG. 5, in the register adjustment mode, the register signal waveform A (g1) and the register signal waveform B (g2) of the print unit 10 received on the display unit 42d via the communication unit 40f of the machine side control unit 40. Is displayed. The waveform detection registration error is the difference Δt between the detection times of the registration marks 6A and 6B, and the control to make the waveform detection registration error zero is automatically executed by the registration error compensator. In this state, the operator 3 visually confirms the actual registration error from the actual printed matter, and adjusts the offset adjustment unit of the registration adjustment unit 50 so that the offset between the actual registration error and the waveform detection registration error becomes small. According to this configuration, the operator 3 can operate the register adjustment unit 50 while checking the offset in the vicinity of each print unit 10, so that the trouble of checking the waveform detection register error on the machine side control unit 40 can be saved. Increased productivity.

The features of the register control system 20 of the present embodiment configured as described above will be described. The register control system 20 is a register control system that controls registration adjustment of the print unit 10 of the multicolor printing system, and is a fixed control board for setting production conditions of the print unit 10. The portable control unit 42 includes a machine-side control unit 40 that acquires register information regarding a register and a portable control unit 42 that can acquire and display register information from the machine-side control unit 40. The portable control unit 42 is a machine-side control unit. 40 is configured to be operable. According to this configuration, since the operator 3 can adjust the register while checking the register information in the vicinity of the printing unit 10, it is possible to save the trouble of returning to the machine side control unit 40 and checking the register information, and the productivity is improved.

The above is the basic configuration and operation of the register control system 20 of the multicolor printing system 100.

The examples of the embodiments of the present invention have been described in detail above. All of the above-described embodiments are merely specific examples for carrying out the present invention. The contents of the embodiment do not limit the technical scope of the present invention, and many design changes such as changes, additions, and deletions of components are made without departing from the idea of the invention defined in the claims. It is possible. In the above-described embodiment, the contents that can be changed in such a design are described with the notations such as "in the embodiment" and "in the embodiment", but the contents are designed without such notations. It's not that changes aren't tolerated.

[Modification example]
Hereinafter, a modified example will be described. In the drawings and description of the modified examples, the same or equivalent components and members as those in the embodiment are designated by the same reference numerals. The description that overlaps with the embodiment will be omitted as appropriate, and the configuration different from the embodiment will be mainly described.

In the embodiment, an example in which the doctor adjusting unit 54 is controlled by the machine-side control unit 40 or the portable control unit 42 has been described, but the present invention is not limited thereto. FIG. 8 is a block diagram of the registration control system 20 of the modification, and FIG. 9 is a block diagram of the registration control system 20 of the modification. For example, as shown in FIG. 8, the doctor adjusting unit 54 is provided on the machine side of the printing unit 10, and the operator 3 manually adjusts the pneumatic bulb and the handle (not shown) of the doctor adjusting unit 54. You may. In this configuration, the display screen of FIG. 6 functions as a waveform of registration error fluctuation that can be used for confirmation after manual doctor adjustment. Further, in this configuration, as shown in FIG. 9, the machine-side control unit 40 does not have to include the doctor control unit 40e.

In the embodiment, an example in which the multicolor printing system 100 includes two printing units, a first printing unit 10A and a second printing unit 10B, has been described, but the present invention is not limited to this, and the multicolor printing printing system 100 includes n (≧ 3). ) May be provided with printing units. In this case, the register control system 20 may include a (n-1) set of a first sensor 30a and a second sensor 30b.

In the embodiment, an example in which one portable control unit 42 is used has been described, but a plurality of portable control units 42 may be used.

In the embodiment, an example having an offset adjusting unit as the register adjusting unit 50 has been described, but the present invention is not limited thereto. For example, the register adjusting unit may include a register roller (compensator roller) that corrects the positional relationship between the web and the plate cylinder by adjusting the roller position.

Any combination of each of the embodiments and modifications described above is also useful as an embodiment of the present invention. The new embodiments resulting from the combination have the effects of the combined embodiments and variants.

6A 1st register mark, 6B 2nd register mark, 10 printing unit, 10A 1st printing unit, 10B 2nd printing unit, 20 register control system, 30 register detector, 40 machine side control unit, 42 portable control unit, 100 multicolor printing system.

Claims (6)

A register control system that controls the register adjustment of the print unit of a multicolor printing system.
A fixed control panel for setting the production conditions of the printing unit, and a machine-side control unit for acquiring registration information regarding the registration of the printing unit.
A portable control unit that can acquire and display the register information from the machine side control unit, and
Equipped with
The portable control unit is a register control system configured so that the machine-side control unit can be operated. The register control system according to claim 1, wherein the portable control unit can exchange information with the machine-side control unit via wireless communication. The register control system according to claim 1 or 2, wherein the portable control unit can perform individual adjustment of the printing unit and overall adjustment of the multicolor printing system. The register control system according to any one of claims 1 to 3, wherein the portable control unit can display a waveform generated based on the register information. The register control system according to any one of claims 1 to 4, wherein the portable control unit can control the doctor adjustment of the printing unit. The register control system according to any one of claims 1 to 5, wherein the portable control unit can change the adjustment parameters of the printing unit.

Images