Sheet supply and transfer device for printers presumable of shee

Details Sheet supply and transfer device for printers presumable of shee Sheet supply and transfer device for printers presumable of shee

1998-06-05

2000-07-18

Ellis, Christopher P.

Sheet feeding or delivering

Feeding

By means to convey sheet

271171, 271272, 27126503, B65H 702

Patent

active

060895667

ABSTRACT:
In the device for automatically controlling the position of a pair of pinch rollers for pressing opposite side edge portions of a sheet delivered from a printing portion of a printer at a surface thereof bearing a print image according to a detection of the spacing between a pair of side fences for aligning opposite sides edges of a stack of sheets charged on a sheet supply tray, a detection error of the sheet width due to a disturbance of stack condition of the sheets or an incorrect contact of the side fence to the side edge of the stack of sheets is automatically corrected by the spacing between the pair of side fences being compared with the width of sheets of regular sizes, while the pinch rollers being positioned by assuming that the sheets are of one of the regular sizes when the difference of the comparison is within a predetermined numerical range.

REFERENCES:
patent: 5826156 (1998-10-01), Natsume et al.

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