Analysis Of Contact Pressure Between A Thermal Print Head
And Ink Of A Thermal Transfer Printer
Author(s)
I. Nitta and H. Terao
Abstract
Analysis of contact pressure between a thermal
print head and ink of a thermal transfer
printer
I. Nitta', H. Terao2
'Graduate School of Science and Technology, Niigata University, Japan
2ALPS Electric Co, Ltd. Japan
Abstract
The print head of a thermal transfer printer presses an ink ribbon on the printing
paper. The ink of the ink ribbon is molten by micro heaters on the thermal print
head and the molten ink is transferred to the printing paper. After a short cooling
process the transferred ink is pressed again by the edge of the head near the micro
heater for fixing. To melt the ink efficiently heat generated by the micro heaters
must be sufficiently transferred to the ink ribbon. Thus the thermal print head has
to be strongly pressed to the ink ribbon at the position of the micro heaters. Elastic
analysis cannot point out the position where the contact pressure is the highest.
Because the ink ribbon is made of a plastic material, it exhibits the viscoelastic
behavior when pressed. The ink
Keywords
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