JPH0255635U - - Google Patents

Description

[Brief explanation of drawings]

FIG. 1 is a sectional view showing the configuration of a recycling automatic document feeder/discharge device implementing the present invention as an example, FIGS. 2a and 2c are partial sectional views showing a part thereof, and FIG.
FIG. b and FIG. 3 are partial perspective views showing a part thereof. FIG. 2d is a block diagram showing the control circuit of the apparatus shown in FIG. 1, and FIG. 2e is a flowchart showing part of the operation of the microcomputer 4 shown in FIG. 2d. FIGS. 4a, 4b, and 4c are explanatory diagrams showing a model in which originals returned onto the paper feed table 110 are arranged. Figures 5a and 5b are a sectional view and a perspective view for explaining the prior art. 1: Paper feed section, 110: Paper feed table (mounting table)
, 111: Side fence, 112: Roller hole,
113: Groove, 120: Caller, 121, 122,
123: Calling roller, 1211, 1221, 12
31: Axis, 124, 133: Drive mechanism, 125:
Tip presser plate, 126a, 126b: Support frame, 12
7: Set claw, 130: Separator, 131: Separation roller (paper feeding member), 132: Separation belt (blocking member), 134: Switching mechanism (contact pressure switching means), 1
40: Sending device, 120, 130, 140: (original extracting means), 141: Pull-out roller, 142
: Pressure roller, 143: Guide, 144: Registration sensor, 2: Conveyance section (conveyance means), 210: Conveyance belt, 211 to 216: Roller, 3: Paper discharge section, 310: Inverter, 311: Conveyance roller, 312
: Switching claw, 320: Ejector, 321: Intermediate roller, 322: Paper ejection belt, 323: Paper ejection unit,
324: Guide, 325: Flexible guide, 4: Microcomputer (drive control means), 41, 42
, 43: Driver, 44: Input matching circuit, CTG
: Contact glass, D: Original, a: Original table, b: Feeding belt, c: Separation belt, d: Separation roller, e: Conveyance belt, f: Ejection belt, g:
Vent.

Claims (1)

[Scope of claim for utility model registration] A mounting table for stacking multiple manuscripts;
a document extraction device that extracts one document from a plurality of documents stacked on the mounting table and feeds it in the supply direction; a conveyance device that conveys the document extracted by the document extraction device to a document reading position; and , a drive control means for driving the document extracting means and the conveying means; the document extracting means includes: a sheet feeding member that contacts at least a part of the document to be extracted and applies a conveying force in the feeding direction thereto; a blocking member provided opposite to the paper feeding member to prevent at least a portion of the document from moving due to the conveyance force in the feeding direction applied by the paper feeding member; and the blocking member and the paper feeding member. contact pressure switching means for switching and setting the contact pressure between the paper feed member and the document to be extracted in at least two stages; 1. A document feeding apparatus, wherein the contact pressure switching means is instructed to set a high contact pressure during at least one period of the document feeding apparatus.