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Title: Mathematical modelling of laser and thermal printers
Author: Uyhan, Ramazan
Awarding Body: University of Manchester
Current Institution: University of Manchester
Date of Award: 2000
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This thesis is concerned with the Mathematical Modelling of thermal and laser printers which are often used to provide high quality prints of electronically stored images. These two systems have a similar geometrical structure in which a thin dye-layer is sandwiched between two copolymer sheets. The dye layer is heated and dye diffuses into the receiver sheet producing a small dye-dot. The picture is made up of a large number of such dots. The basic aim is to determine the amount of dye which eventually diffused into the receiver sheet when the heating is turned off and the system has cooled down. The amount of dye which diffuses into the receiver sheet depends on the temperature field because the diffusion coefficient is a sensitive function of temperature. However the structure of the thermal fields in the two systems is very different. In the laser system radiation is absorbed in the dye-layer alone giving a local heating effect. In the thermal printer system the head is heated by an electric current and heat is conducted into the dye-layer. We found that sharp concentration fronts can occur in the laser system, but these are absent in the thermal printer system. We have also made a preliminary study of an optimization problem for a thermal printer head. To study these problems we have used a combination of analytical and numerical methods.
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available