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What is the duty of a lithographer?
Engaged in the work mainly includes:

(1) prepress process design;

(2) Photographic color separation or electronic color separation, developing and fixing color separation;

(3) typesetting the text draft and making text films;

(4) trimming and combining the color separator and the text table;

(5) making the assembled printing plate copy into a negative for photoetching;

(6) transferring the pictures and texts on the negative to a metal plate for printing;

(7) Use proofing equipment for proofing.

The following types of jobs belong to this occupation:

Computer phototypesetting host operator, lithographer, electronic color sorter, lithographer, electronic image processor, lithographer, lithographer, computer compositor and graphic producer.