| 摘要 |
PROBLEM TO BE SOLVED: To provide a color printing system capable of inexpensively performing color printing. SOLUTION: Plural electrophtographic printers 1 are superposed and used, the printers 1 are provided with a second paper ejecting port 23 ejecting a paper 2 obtained after printing to another printer 1 positioned above, and a second paper supplying port 19 receiving the paper 2 ejected from the second paper ejecting port inside the printer 1 on a position opposed to the port 23 of another printer 1 positioned below when the printer 1 is superposed, and also the printers 1 respectively incorporate the toner of different colors, supply the paper 2 inside the printer 1 in the case of printing and perform printing, eject the paper 2 obtained after the printing from the port 23, feed the paper 2 to the printer 1 positioned above from the port 19, and perform printing, so that the respective printers 1 perform printing on the paper 2 by each color inside the printer 1.
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