Article Feeders TRIZ Cases

Optical sensing detects sheet presence to resolve speed versus precision trade-offs.

Movable grid segments reconfigure suction openings to fix varying sheet formats, maintaining uniform inkjet distance without complex structural changes.

A sheet separator uses a curved upstream surface to guide the leading end of stacked sheets toward the nip position without collision.

A lottery ticket dispensing unit uses a bi-directional shuttle to separate tickets along perforation lines.

A swingable guide plate biases against an inclined surface to maintain document sheet orientation during feeding.

Protruding portions on the upstream reading unit contact guide surfaces to position the movable first unit for precise document feeding.

Integrated tray cover mechanism pivots main body to standing position, preventing dust ingress without manual user intervention.

A reading guide uses elastic claw portions to snap-fit a protruding support portion, enabling vertical movement.

A movable follow roller support mechanism adjusts position to maintain precise alignment with the drive roller during sheet transport.

A hole-patterned protection member blocks staples from reaching the control circuit board, preventing short-circuits while allowing ultrasonic detection.

Segmented airflow circuits reduce aspirator power consumption by maintaining negative pressure only where cardboard covers the holes.

A paper-sheet feeding unit uses a feed roller with distinct high and low friction zones to grip and separate sheets one by one.

A drive shaft groove guides a protrusion using an inclined surface to ensure precise alignment during assembly.

An air sucker with an opening-and-closing mechanism controls suction in a sheet feeding device.

Asymmetric dual driving sources distribute load to prevent transportation disorders caused by varying weights, ensuring stable medium feeding.

A cassette tray lifts stacked papers to maintain alignment, preventing packaging material interference and paper jams.

Linking rods rotate the cassette out of the printer housing, preventing loss or damage during jam clearing.

Segmented feed grooves separate long smooth sheets to prevent multifeed and reduce inclination errors.

A rotating belt drives sheets past seams, preventing jams and damage in digital processing machines.

A pivot-mounted flag arm creates a wedge shape to guide documents into the sorter mechanism.