Closed-loop technology for printing process control
2018-06-19 07:00:44
Closed-loop technology in the printing industry is a new term, but what has caused controversy is that if it is used for sheet-fed printing presses, closed-loop technology is still not a professional term.
In fact, the printing industry's technical staff is very willing to apply the closed-loop technology to the control of the printing press. Closed-loop technology is used to help connect the whole process from pre-press to printing. Based on this assumption, as early as 1995, 14 sellers reached a cooperation agreement on CIP3 (prepress, printing, and postpress integration).
At present, the printing plant is also gradually adopting closed-loop technology, which is mainly used for the control of the printing process to meet the needs of printing jobs such as less print, more colors and shorter preparation time. For printers, what is considered is the use of automated workflows and closed-loop technology to bring profit to printing companies.
From the theory to the practical application of closed-loop technology applied to the field of printing this theory was proposed about 10 years ago, even if it has not yet been popularized, but it has become a reality. Closed-loop technology has been used for workflow control from prepress to printing, and it is not too late for post-press processing.
At Drupa 2000, closed-loop technology has been successfully applied to sheet-fed presses. Since the number of print jobs is decreasing, and the number of prints required is increasing, the length of preparation time and waste of paper are the key factors that determine whether a printer can earn money when receiving a job. "There is nothing more time-consuming than adjusting the ink-and-wash balance on the machine, or picking up waste sheets from the job after printing," said Kaivon Rumholel, production manager for Speedmaster offset presses at Heidelberg, USA. It's money."
The spectrophotometer control system, based on CIELAB's independent color space, is an independent on-line control device. It can quickly obtain color information and keep it consistent throughout the printing process. Now it has become an indispensable on-line control system in the printing process control.
Color control strips are gradually phased out. The demand for on-line spectrophotometer control systems is increasing, and color control strips will be phased out. It can not only test images directly, but it can also be integrated with digital presses. The Image Control CPC24, an on-line spectrophotometer control system recently introduced by Heidelberg, is one example.
Image Control CPC24 is connected to a digital prepress system directly via CIP3 via an open-faced Windows NT interface using a PPF electronic folder so that all relevant equipment can receive and identify these electronic components in the workflow. data. At this point, Image Control CPC24 is more than just the “electronic eye†of the press, but it also allows the operator to predict the final printing effect of each print.
The chic press console Heidelberg also designed a new console for its new machines Speedermaster 102 and CD102 in order to manage the control of the entire printing process in unison with the ink transfer system. The new CP2000 console and Image Control CPC24 control system all work in an open Windows NT interface.
Both devices are operated using touch screen technology. The operator can control the entire printing process on the screen, thereby greatly shortening the preparation time for the machine.
Closed-Loop Drive Preparation Time In recent years, sheet-fed press manufacturers have focused their efforts on automatically transferring the data generated by the prepress system to the press. The results of the study showed that transferring the ink key adjustment data directly from the prepress system (the data generated by the film and direct plate-making) to the printer can ensure that the preparation time for the machine is fast and accurate. Through automatic control, the on-machine color management and quality monitoring system allows the printer to automatically control the color during the printing process to ensure the quality of the printed product.
The use of automated control technology aims to eliminate visual inspection of the printing process and color control. Sheet-fed press manufacturers have adopted automatic control technology when manufacturing new machines and have become a production standard.
For example, Komori's US subsidiary has just introduced an on-board control system that is mainly used on its Lithrone sheet-fed press series. This technique allows the operator to simplify the preparation of the machine to just one click.
One of the features of this technology is that digital ink key parameters can be passed from any front-end system to the Komori press control panel. Komori's CIP3 and PPF communication system software modules receive PPF files from any CIP3-compatible front-end system and can read from the console preparation drive system.
The open front-end system utilizes Komori's technology to simplify the data connection process through Saiyan's Brisque system and InkPro software. Komori also established its own CIP3 and PPF systems so that operators can transfer PPF data to Lithrone control via Agfa, Creo or other front-ends. The key point is that the output system must be compatible with CIP3 and can generate PPF files.
The revolution of the printing industry The Akiyama company also used the latest technology developed by the company in the production of new printing presses, and has made its debut at Drupa 2000.
Every printer manufacturer wants to transfer the data from the computer-to-plate system directly to the control panel and then automatically adjust the ink and monitor the operation of the printer, and adjust the preset parameters during operation. Martin Pidson, marketing manager of Akiyama Corporation, said: “At Drupa, we have used this technology on the ten-color J Print press. In multi-color printing, automatic color control has become a key Control device."
Akiyama Corporation began using closed-loop technology similar to when it began to receive CTP. In the beginning period of time, progress was very slow, after which they suddenly discovered that this technology was what they had to have. Peterson said: "Initially, this change is difficult. If it changes gradually, it does not seem difficult, but it is difficult to accept this change all at once."
Closed-loop technology has attracted attention in online imaging systems. Akiyama Corporation targeted this market and introduced Presstek's on-board direct imaging system. A set of platemaking equipment was ready for use on its J Print 29-inch press.
Improve the efficiency of work to unify the entire work process management, improve production efficiency is the main direction of man Roland.
Manroland recently introduced an NT server-Pecom Advanced SeveNet, which has the speed, efficiency, and flexibility of modern computers. Pecom (Process Electronic Control organization and Management) is one of the newest products that MAN Roland exhibited at Drupa 2000.
The Pecom Advanced SeverNet Server allows valid data to be entered into Agfa's platemaking system, processed, or made into film, and passed to the press for ink transfer. We can call this server a network or a control system.
Through Manroland's Presslink, the digitized information for ink transfer is assembled into job tickets and then combined with data for platemaking or film.
Collecting job records Collecting job records is to gather the requirements from customers at work so that they can be referenced in the future. Automation control not only refers to the control of the printing process and the digital setting of ink keys, but also needs to gather experience accumulated in the work.
Manroland also introduced Managementlink based on White River Juntion. According to the company, since the Managementlink interface was unveiled at the Graph Expo/Converting Expo '99 exhibition in Chicago in 1999, significant progress has been made in its development work. This connection system is a Pecom serverNet product that allows the operator to manage during the printing process and helps to better monitor the entire printing process.
The establishment of the printing city Manroland established a new market partner group at the Drupa 2000 exhibition - Printing City. More than 60 printing companies participated in the exhibition, such as Adobe, Agfa, Apple, Bell & Howell, Océ, and Sun Chemical. The equipment displayed includes a complete set of digital workflows such as prepress, printing, and postpress processing. The Printing City covers an area of ​​258,000 square feet. The purpose of establishing the printing city is to enable visitors to see the entire workflow from prepress to postpress in an exhibition hall, and to enable the printer to see at a glance the status of the current printing industry and the development trend of new technologies.
This practice is the first time in an exhibition held in the history of Drupa or anywhere. From "Printing Technology"
In fact, the printing industry's technical staff is very willing to apply the closed-loop technology to the control of the printing press. Closed-loop technology is used to help connect the whole process from pre-press to printing. Based on this assumption, as early as 1995, 14 sellers reached a cooperation agreement on CIP3 (prepress, printing, and postpress integration).
At present, the printing plant is also gradually adopting closed-loop technology, which is mainly used for the control of the printing process to meet the needs of printing jobs such as less print, more colors and shorter preparation time. For printers, what is considered is the use of automated workflows and closed-loop technology to bring profit to printing companies.
From the theory to the practical application of closed-loop technology applied to the field of printing this theory was proposed about 10 years ago, even if it has not yet been popularized, but it has become a reality. Closed-loop technology has been used for workflow control from prepress to printing, and it is not too late for post-press processing.
At Drupa 2000, closed-loop technology has been successfully applied to sheet-fed presses. Since the number of print jobs is decreasing, and the number of prints required is increasing, the length of preparation time and waste of paper are the key factors that determine whether a printer can earn money when receiving a job. "There is nothing more time-consuming than adjusting the ink-and-wash balance on the machine, or picking up waste sheets from the job after printing," said Kaivon Rumholel, production manager for Speedmaster offset presses at Heidelberg, USA. It's money."
The spectrophotometer control system, based on CIELAB's independent color space, is an independent on-line control device. It can quickly obtain color information and keep it consistent throughout the printing process. Now it has become an indispensable on-line control system in the printing process control.
Color control strips are gradually phased out. The demand for on-line spectrophotometer control systems is increasing, and color control strips will be phased out. It can not only test images directly, but it can also be integrated with digital presses. The Image Control CPC24, an on-line spectrophotometer control system recently introduced by Heidelberg, is one example.
Image Control CPC24 is connected to a digital prepress system directly via CIP3 via an open-faced Windows NT interface using a PPF electronic folder so that all relevant equipment can receive and identify these electronic components in the workflow. data. At this point, Image Control CPC24 is more than just the “electronic eye†of the press, but it also allows the operator to predict the final printing effect of each print.
The chic press console Heidelberg also designed a new console for its new machines Speedermaster 102 and CD102 in order to manage the control of the entire printing process in unison with the ink transfer system. The new CP2000 console and Image Control CPC24 control system all work in an open Windows NT interface.
Both devices are operated using touch screen technology. The operator can control the entire printing process on the screen, thereby greatly shortening the preparation time for the machine.
Closed-Loop Drive Preparation Time In recent years, sheet-fed press manufacturers have focused their efforts on automatically transferring the data generated by the prepress system to the press. The results of the study showed that transferring the ink key adjustment data directly from the prepress system (the data generated by the film and direct plate-making) to the printer can ensure that the preparation time for the machine is fast and accurate. Through automatic control, the on-machine color management and quality monitoring system allows the printer to automatically control the color during the printing process to ensure the quality of the printed product.
The use of automated control technology aims to eliminate visual inspection of the printing process and color control. Sheet-fed press manufacturers have adopted automatic control technology when manufacturing new machines and have become a production standard.
For example, Komori's US subsidiary has just introduced an on-board control system that is mainly used on its Lithrone sheet-fed press series. This technique allows the operator to simplify the preparation of the machine to just one click.
One of the features of this technology is that digital ink key parameters can be passed from any front-end system to the Komori press control panel. Komori's CIP3 and PPF communication system software modules receive PPF files from any CIP3-compatible front-end system and can read from the console preparation drive system.
The open front-end system utilizes Komori's technology to simplify the data connection process through Saiyan's Brisque system and InkPro software. Komori also established its own CIP3 and PPF systems so that operators can transfer PPF data to Lithrone control via Agfa, Creo or other front-ends. The key point is that the output system must be compatible with CIP3 and can generate PPF files.
The revolution of the printing industry The Akiyama company also used the latest technology developed by the company in the production of new printing presses, and has made its debut at Drupa 2000.
Every printer manufacturer wants to transfer the data from the computer-to-plate system directly to the control panel and then automatically adjust the ink and monitor the operation of the printer, and adjust the preset parameters during operation. Martin Pidson, marketing manager of Akiyama Corporation, said: “At Drupa, we have used this technology on the ten-color J Print press. In multi-color printing, automatic color control has become a key Control device."
Akiyama Corporation began using closed-loop technology similar to when it began to receive CTP. In the beginning period of time, progress was very slow, after which they suddenly discovered that this technology was what they had to have. Peterson said: "Initially, this change is difficult. If it changes gradually, it does not seem difficult, but it is difficult to accept this change all at once."
Closed-loop technology has attracted attention in online imaging systems. Akiyama Corporation targeted this market and introduced Presstek's on-board direct imaging system. A set of platemaking equipment was ready for use on its J Print 29-inch press.
Improve the efficiency of work to unify the entire work process management, improve production efficiency is the main direction of man Roland.
Manroland recently introduced an NT server-Pecom Advanced SeveNet, which has the speed, efficiency, and flexibility of modern computers. Pecom (Process Electronic Control organization and Management) is one of the newest products that MAN Roland exhibited at Drupa 2000.
The Pecom Advanced SeverNet Server allows valid data to be entered into Agfa's platemaking system, processed, or made into film, and passed to the press for ink transfer. We can call this server a network or a control system.
Through Manroland's Presslink, the digitized information for ink transfer is assembled into job tickets and then combined with data for platemaking or film.
Collecting job records Collecting job records is to gather the requirements from customers at work so that they can be referenced in the future. Automation control not only refers to the control of the printing process and the digital setting of ink keys, but also needs to gather experience accumulated in the work.
Manroland also introduced Managementlink based on White River Juntion. According to the company, since the Managementlink interface was unveiled at the Graph Expo/Converting Expo '99 exhibition in Chicago in 1999, significant progress has been made in its development work. This connection system is a Pecom serverNet product that allows the operator to manage during the printing process and helps to better monitor the entire printing process.
The establishment of the printing city Manroland established a new market partner group at the Drupa 2000 exhibition - Printing City. More than 60 printing companies participated in the exhibition, such as Adobe, Agfa, Apple, Bell & Howell, Océ, and Sun Chemical. The equipment displayed includes a complete set of digital workflows such as prepress, printing, and postpress processing. The Printing City covers an area of ​​258,000 square feet. The purpose of establishing the printing city is to enable visitors to see the entire workflow from prepress to postpress in an exhibition hall, and to enable the printer to see at a glance the status of the current printing industry and the development trend of new technologies.
This practice is the first time in an exhibition held in the history of Drupa or anywhere. From "Printing Technology"
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