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.

A displacement mechanism moves a roller pair from contact to separation when the casing opens.

A scanning device clutch unit connects a manual knob to document feeding rollers.

Raised webs on segmented transport belts position painted sheet edges in depressions to stop paint wrap and contamination during coating.

A pivotable support member stabilizes the automatic document feeder cover, preventing flexural distortion that narrows the conveyance path and causes jams.

An automatic document feeder reduces its footprint by nesting the drive shaft within the motor's axial space.

Rotating flap dynamically blocks or opens passages to prevent warped printing sheets from obstructing guide rollers during multi-tray conveyance.

A control unit delays sheet absence determination timing to prevent premature jamming detection.

A movable guide member directs sheets through merging conveyance paths by shifting positions to open or close specific channels.

Concentric cylinder and hole nesting eliminates spacer parts in printer gear trains while maintaining positioning consistency across configurations.

A driven roller support stabilizes the rotary shaft via a biasing member and lever, reducing squeak noise under large loads.

A sheet feeding apparatus uses a detection piece pivoting on a driving shaft to sense top surface position.

A rotatable media ramp compensates for feeder misalignment and positioning variations to ensure accurate sheet routing.

Segmented hollow positions in the grid plate eliminate idle suctions that cause uneven friction, skew feeds, and energy waste during cardboard conveyance.

A flexible guide member prevents strong contact noise by mediating interaction between the medium and an outer path forming member in a compact device.

A sheet feeding device calculates rigidity using curvature information from a sensor upstream of the transport mechanism.

A colorimetric device extracts chart region candidates from images to determine valid measurement areas for automatic patch alignment.

A swingable arm member with a non-contact laser sensor measures positional changes to detect overlapping sheets in sheet-fed printing presses.

Notification unit guides paper bundle alignment to reduce friction between sheets and packaging members, preventing carrying defects during feeding operations.

A paper separating roller uses two friction members made of different materials to maintain gripping force.

A medium feeding device adjusts airflow parameters to separate sheet media.

A controller reverses a conveyor when a sensor loses track of the medium.

Magnetically clamped rotating elements transport curved sheets, eliminating paper jams from alternating mechanical pulling.

Metal frames reinforce supporting members in sheet conveying apparatuses, preventing path lengthening and noise while maintaining compact size.

Rear card inlet merges with sheet path to position rollers closer to insertion, preventing small cards from falling out before reaching the image reading unit.

A swingable stacking portion adjusts its inclination angle to align the uppermost envelope with the feed roller.

Adjusting the roller nip direction reduces conveyance resistance and prevents sheet jamming in curved U-turn paths.

A feeder system clamps flat carton stacks using a downholder element and supporting platform to move them between receiving and processing positions.

A mail feeding station adjusts separation gap width and transport speed using sensor feedback to isolate flat items.

A lock mechanism engages a holder member to constrain paper position, resolving stopper misalignment issues during setup.

Elastic deformation of a sheet-metal protruding portion reduces document vibration without obstructing conveyance.