A copier with a duplexer can automatically make two-sided copies with the press of a button. A copier's paper supply refers to the sets of trays and holders that hold paper inside the copier. Depending on which paper source you select, you can copy onto different sizes or types of paper. Total paper supply. Paper sources typically start at around 100 sheets, and the largest-capacity units can hold up to 3000 sheets.
Every copier has a standard paper supply.
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