Publications:Ink feed control in a web-fed offset printing press

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Title Ink feed control in a web-fed offset printing press
Author Cristofer Englund and Antanas Verikas
Year 2008
PublicationType Journal Paper
Journal The International Journal of Advanced Manufacturing Technology
HostPublication
Conference
DOI http://dx.doi.org/10.1007/s00170-007-1273-8
Diva url http://hh.diva-portal.org/smash/record.jsf?searchId=1&pid=diva2:404940
Abstract Automatic and robust ink feed control in a web- fed offset printing press is the objective of this work. To achieve this goal an integrating controller and a multiple neural models-based controller are combined. The neural networks-based printing process models are built and updated automatically without any interaction from the user. The multiple models-based controller is superior to the integrating controller as the process is running in the training region of the models. However, the multiple models-based controller may run into generalisation prob- lems if the process starts operating in a new part of the input space. Such situations are automatically detected and the integrating controller temporary takes over the process control. The developed control configuration has success- fully been used to automatically control the ink feed in the web-fed offset printing press according to the target amount of ink. Use of the developed tools led to higher print quality and lower ink and paper waste.