Double-side printer

Details Double-side printer Double-side printer

1987-09-21

1988-11-15

Evans, Arthur G.

Recorders

Electric recording

Electrochemical

3461601, 355 24, G01D 1600

Patent

active

047853174

ABSTRACT:
A double-side printer having a printer body including a print head disposed oppositely to a platen, a sheet conveying unit mounted in the printer body and including a sheet supplying unit for sequentially supplying sheets stacked on a sheet supply tray one by one to a printing position between the print head of the printer body and the platen, and a sheet exhausting unit for stacking and exhausting the sheet from the printing position to an exhausted sheet tray comprising belt-like latent image forming means narrower than the width of the sheet, a pair of transferring units for transferring toner image formed on the latent image forming means reversely to one another to the sheet, and an electrophotographic processing unit having a pair of sheet passages for inserting the sheet to pass the sheet through the transferring units, arranged between the sheet supplying unit and the sheet exhausting unit of the sheet conveying unit, a fixing unit disposed out of the electrostatic processing unit for fixing the toner images on the sheet on the surfaces of the sheet, and passage switching means disposed in the sheet supplying unit for arriving the sheet of the sheet supplying unit at the fixing unit by selectively passing either one sheet passage of the developing unit, thereby enabling the double-side printer to double-side print in a simple structure to be inexpensively manufactured.

REFERENCES:
patent: 4585336 (1986-04-01), Tanaka
patent: 4636449 (1987-01-01), Gorondy
patent: 4637709 (1987-01-01), Shirai

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