Thermal design of a printer is simulated using thermo-fluid analysis software in a general approach similar to other electric devices, but it is difficult to consider heat transport caused by a paper fed through the printer, which is one of the characteristic features of a printing device. At the time of printing, a sheet of paper, which is pressed in between a heating roller and a pressuring roller, is heated up, and its heat is transported from a fuser region to other regions along the course of the paper feed path. Heat transported with the paper then transfers to parts surrounding the paper feed path, and effects a significant change in the temperature distribution.
“Printer Paper-Feeding model” in scSTREAM, developed by Software Cradle Co. Ltd., is a convenient means to consider the heat transport caused by paper motions using steady state simulation to predict the temperature inside a printer.
In this presentation, we introduce Printer Paper-Feeding model and its analysis results. In the analysis using Printer Paper-Feeding model, the results show that the temperatures of the pressuring roller for the printer fuser and its surrounding region are lower compared to the results without the consideration of the paper. In addition, the portion of the paper which has passed through the fuser is at a higher temperature. These results support that Printer Paper-Feeding model is a more effective way to accurately predict the temperature inside the printer, where the paper transfers the heat from the heating roller to the surrounding regions.