Imaging device and transferring method thereof

Abstract

The invention relates to an imaging device which comprises a photosensitive drum and a transferring piece. A developing agent used by the imaging device is a magnetic developing agent; the transferring piece is a magnetic transferring piece. As the transferring piece is the magnetic transferring piece, a magnetic field can be built in a region between the magnetic transferring piece and the photosensitive drum, and the magnetic developing agent imaged on the photosensitive drum can be transferred onto a printing medium passing through a space between the magnetic transferring piece and the photosensitive drum or a transferring medium positioned between the magnetic transferring piece and the photosensitive drum under the action of the magnetic field. Compared with the prior art, the imaging device has the advantages that an outer force is supplied to the transferring of the magnetic developing agent through the magnetic field, so that the problem that some thicker printing mediums are difficult to charge to implement transferring in the prior art is solved; thus, the imaging device can not only implement transferring of the printing mediums such as the conventional paper but also implement printing of a thicker flat-plate printing medium which can be only printed through the conventional flat-plate printer. Furthermore, the invention also provides a transferring method suitable for transferring of the imaging device.

Description

technical field [0001] The present invention relates to an imaging device and its transfer method, in particular to an imaging device and its transfer method for transfer using a magnetic transfer printing method. Background technique [0002] Imaging device is one of the most commonly used computer peripherals, mainly including laser printers, copiers and multi-function machines, etc.; they all need to be transferred during their work, that is, to transfer the developer imaged on the photosensitive drum to the printing medium above; it uses the characteristics of positive and negative charges to attract positive charges to conventional printing media such as paper through the transfer roller to attract the negatively charged developer on the photosensitive drum to complete the transfer process; due to the existing imaging device It is difficult to apply charge to thick flat printing media such as plastics and ceramics, and the transfer of the above flat printing media canno...

AI Technical Summary

Problems solved by technology

[0002] Imaging device is one of the most commonly used computer peripherals, mainly including laser printers, copiers and multi-function machines, etc.; they all need to be transferred during their work, that is, to transfer the developer imaged on the photosensitive drum to the printing medium above; it uses the characteristics of positive and negative charges to attract positive charges to conventional printing media such as paper through the transfer roller to attract the negatively charged developer on the photosensitive drum to complete the transfer process; due to the existing imaging device It is difficult to apply charge to thick flat printing media such as plastic and ceramics, and the transfer of the above flat printing media cannot be completed

[0003] In view of the above problems, the prior art is to use an improved inkjet printer, i.e. a flatbed printer, to print on the above-mentioned flatbed printing medium, but cannot use the existing imaging device with better printing speed and printing quality to print, which limits the scope of flatbed printing. Scope of application; the following will take a laser printer as an example to illustrate the working process of an existing imaging device, figure 1 It is a structural schematic diagram of the transfer and fixing parts in the existing laser printer. The laser printer includes a processing box, a transfer piece and a fixing piece; the processing box includes a powder bin 1, a powder outlet knife 2, a developing roller 3, a photosensitive drum 4, and a cleaning blade 5. Waste toner bin 6 and charging roller 7; transfer parts include transfer roller 10, fixing parts include upper fixing roller 8 and lower pressure roller 9; basic working process can be divided into charging, exposure, developing, transfer printing, fixing, Seven steps to clean, eliminate electricity, etc.

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