| 摘要 |
PURPOSE: To provide an inexpensive both-side printer in simple structure by providing a paper output passage and an endless both-side copy return passage in simple integrated structure. CONSTITUTION: When a cassette type paper tray 70 is inserted into a both-side printer 10, a copy paper sheet to be both-side copied is passed on the cassette type paper tray 70 while being guided between a fixed guide plate 102 and an upper cover member 100 of the cassette type paper tray 70. Besides, when the cassette type paper tray 70 is ejected, the section corresponding to a both- side copy passage 94 is opened and exposed so that the copy paper sheet can be taken out of the both-side copy passage 94. Thus, the cost of production or complexity is not increased and clogged paper can be easily removed by easily approaching the paper carrier passage. |
