Article Feeders TRIZ Cases

A swingable holder adjusts the gap between a pickup roller and sheet support to maintain consistent feeding pressure.

Differentiated guide rib heights lift sheet ends in a curved path, preventing bending and jamming during double-sided printing.

Vertical conveyance guides with openings eliminate holder interference during pickup roller movement, enabling compact duplex printing designs.

A medium supply system floats stacked recording media using directional air flow and captures edge images to determine sheet separation.

Asymmetric keyways on support shafts regulate rotary feeding member orientation, preventing oblique feeding and paper jamming in image recording devices.

Dynamic acceleration and deceleration on a band conveyor fan overlapping letters, resolving jams and multifeeds while maintaining high throughput.

Arrayed ultrasonic elements transmit waves with different phases to detect overlapping sheets without precise mechanical alignment.

A plug-in software program calculates paper size and scaling settings automatically.

Segmented elastomer covers with locking slots enable quick in-situ replacement of worn sections, reducing maintenance time and material costs.

Intermediate positioning stabilizes abutting pressure, preventing sheet displacement during high-speed feeding.

Positioning a sound collector dynamically along the sheet width resolves detection blind spots caused by fixed sensors, improving abnormal conveyance accuracy.

Multi-axis motion detection identifies media deflection to stop feeding and prevent jams from folded documents.

A feed roller unit with a concave portion positions an urging member between outer surfaces to enable compact sheet separation.

V-shaped inclined guides allow larger separation rollers to fit in thin apparatuses, increasing document capacity without raising height.

A pivoting medium tray drives a linking component to pivot a guiding element, routing paper through exit passages.

A handling system bends stackable flat elements using clamping and lifting devices to create a stiffer U-shaped cross-section.

Integrating path switching and switchback roller control via a single drive mechanism reduces part count, noise, and production costs.

Segmented air blowing openings and platen penetrations maintain airflow to separate sheets when the bundle count decreases.

An asymmetric pulley system synchronizes roller angular velocities to stabilize sheet conveyance in image reading apparatuses.

Dynamic abutment positioning prevents sheets from leaning on sloping surfaces, eliminating roller interference and feeding failures.

Dynamic delivery roller positioning combined with adjustable air blowing prevents sheet floating and misregistration during separation.