Fixation device

Abstract

The invention relates to a fusing unit which comprises a heat conduction film, a heat conduction casing, a heating element, two film adjusting elements arranged at two ends of the heat conduction film and a cylinder. The heat film is of a hollow pipe shape with two ends sleeved on the two film adjusting elements; the heat conduction casing comprises a surrounding wall inserted into the heat conduction film, and an accommodation space defined by the surrounding wall, the surrounding wall has a level contact surface which contacts with the inner surface of the heat conduction film; the heating element is inserted into the accommodation space and closes to the contact surface between the surrounding wall and the heat conduction film to heat the surrounding wall by radiation heating mode; the cylinder is arranged adjacent to the level contact surface, and supported against the level contact surface through the heat conduction film, the rolling of the heat conduction film is activated by the rolling of the cylinder, and a patterned area is defined between a supporting contact part of the heat conduction film and the level contact surface and the cylinder. The fusing unit has the advantages of improving the heat transferring efficiency, reducing energy consumption, reaching a working temperature in a short time, simple structure, low production cost, and is capable of reducing curl generation of paper after heated, and can be applied under high speed column printing situation.

Description

technical field [0001] The invention relates to a fixing device of an electronic imaging device, in particular to a fixing device of toner on paper by heating and applying pressure, which can improve heat transfer efficiency, reduce energy consumption, and reach working temperature in a short time. The utility model has the advantages of simple structure and low manufacturing cost, can reduce curling of the paper after being heated, and can be applied to a fixing device of an electronic imaging device under high-speed printing conditions. Background technique [0002] see figure 1 and figure 2 Shown is a schematic cross-sectional view of a fixing device of a conventional electronic imaging device, which is a fixing device 1 of an electronic imaging device disclosed in US Patent No. 5,210,579. The heater 11 of the fixing device 1 is Set on the bottom side of an insulating base 12, the heater 11 includes a ceramic substrate 111, a heating element 112 arranged on the bottom ...

AI Technical Summary

Problems solved by technology

[0009] This shows that the above-mentioned existing fixing device obviously still has inconvenience and defects in structure and use, and needs to be further improved urgently.

In order to solve the above-mentioned problems, the relevant manufacturers have tried their best to find a solution, but for a long time no suitable design has been developed, and the general products do not have a suitable structure to solve the above-mentioned problems. Urgent problem

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