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Energy efficiency for digital printing environments

35.006 Energy efficiency of large and small format printing systems

Period: 1.2.2013 unti 31.1.2014
Funding: Bavarian Ministry of Economic Affairs, Infrastructure, Transport and Technology

Aim:

In this project different digital printing systems will be evaluated by means of their power and energy consumption. Detailed voltage and current measurements will be made for representative system configurations. Here the focus lies on process independent evaluation of the pertinent workflow steps for large format printing (LFP) and small format production printing. In addition the available guidelines and recommendations for conventional printing should be analysed for potential contributions to digital printing systems.

Primary aim is to provide measured data alongside its uncertainty for typical process steps. Based on that recommendations for print service providers should be derived in order to allow an individual assessment of energy efficiency of their digital printing facilities. This provides the basis for means to reduce the amount of energy required to provide printing products and services for digital printing.

Summary:

Determining effective energy efficiency measures requires a in-depth analysis of the status quo. Here the energy efficiency potentials needs to be evaluated separately for different sectors and production stages of the pertinent company. Contrary to general purpose, i.e. industry specific, provisions there are no guidelines or recommendations of how to evaluate the energy efficiency of digital printing presses. Hence in this project different digital printing systems will be evaluated by means of their power and energy consumption. Detailed voltage and current measurements will be made for representative system configurations. Here the focus lies on process independent evaluation of the pertinent workflow steps for large format printing (LFP) and small format production printing.
So far available guidelines and recommendations for conventional printing have been analysed for potential contributions to digital printing systems. Based on this digital printing systems has been grouped into small and large format applications. The analysis further showed that three modes of operation needs to be taken into consideration. These are standby, print ready and production mode where the relevant efficiency measures for the production mode are m2/kwh or A4 sheets/kWh. At the end of the project a guideline to measure operational specific energy consumption will be prepared.



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