A method of forming a drum assembly

G - Physics – 03 – G

Patent

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G03G 5/00 (2006.01) G03G 13/00 (2006.01)

Patent

CA 2303499

A method is described for forming a drum assembly for use as a rotatable endless surface means onto which a toner image can be formed in an electrostatographic single-pass multiple station printer. The drum assembly comprises a hollow, cylindrical drum (234) carrying a photoconductive surface layer and, at each end of the drum (234), a flange (233) and a shaft (231) having a collar (232) fixed thereon which is sized to fit with clearance inside the flange (233) and which is secured thereto by adjustable fixing screws (235). Each flange (233) is provided over-sized with respect to the internal diameter of the hollow drum (234). Each flange (233) is cooled before inserting it into the drum (234) and the fixing screws (235) are adjusted to reduce the eccentricity of the drum assembly to a minimum.

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