Electrographic Process Apparatus TRIZ Cases

Inclining the first stretching roller controls belt deviation while a contacting member maintains consistent transfer nip width.

A movable member supports process cartridges while an interrelating member adjusts developing unit positions relative to photosensitive drums.

A developing device feeding member includes a projected portion on a disk section to ensure smooth developer conveyance.

A vibration plate inside a powder container detects toner levels through oscillation frequency changes measured by a magnetic flux sensor.

Positioning the cleaning blade upstream of the counter roller top reduces installation space while maintaining belt stability and preventing blade curling.

Nested concentric demagnetizing coils cancel magnetic flux to suppress over-temperature in non-sheet-passing regions of electromagnetic fixing devices.

A flexible electrode plate accommodates drum eccentricity to reduce friction and ensure uniform pressing force.

A fixing device uses solid-phase heat storage materials to manage thermal energy without liquid leakage risks.

A thermoplastic polyester resin composition incorporates an ionic electro-conductive agent and a polyether ester amide to form a stable electrophotographic belt layer.

A printing cutter unit uses a rotating body with a guide groove to drive a blade via a single pin.

Exposed skeletal shaft sections provide measuring references that verify unit positioning without disassembly.

A developer restriction member with a contact portion curvature radius of 0.17 to 0.28 mm forms a stable developer layer on the development member surface.

A turnable stopper member on an image forming apparatus ejection tray shifts between storage and restriction postures to secure stacked media.

A sheet processing apparatus moves a preceding folded bundle upstream to position its trailing edge for reliable stacking of succeeding bundles.

A control unit manages fan power based on operational states to minimize energy use.

A notification target determination portion identifies specific users based on stored job history to deliver relevant status updates.

A control device adjusts bias voltage between an intermediate transfer belt and a brush roller to shift residual toner.

Positioning cutter downstream of fixing nip ensures full sheet passage before cutting, eliminating excessive heating and pressurization.

A developer cartridge uses a slope at the opening edge to direct toner inward.

A movable electrical connector aligns with a replaceable unit guide during insertion to establish a reliable communication link.

A movable heat shield adjusts its rotation angle to protect the fixing rotary body from excessive thermal radiation.

Segmented pneumatic separation reduces compressor power consumption while preventing surface scratches on coated papers.

A metal spring biases the main developer transport member body, suppressing creep deformation and ensuring stable developer supply during prolonged stops.

Acquired envelope information directs display of stacking methods to prevent creases during double-side printing.

A measurement section determines spine cover width based on stack thickness for precise image positioning.

Gradient particle distribution in the resin coating maintains stable carrier resistance and charging ability, preventing fog generation during long-term use.

A pivot member in a sheet feeding apparatus pivots between positions to form part of the conveyance path.

Positioning a non-contact temperature sensor opening between discharge rollers ensures accurate detection of small media, preventing overheating.

A cartridge shutter mechanism exposes detection gears to enable toner level monitoring while protecting internal components from contamination.

Separate detection units track medium edges before and after heating, resolving accuracy trade-offs caused by varying thermal states.

Dynamic transfer bias polarity prevents reverse charging of black toner, ensuring reliable image density across print modes.

Dual elastic layers with distinct microhardness values suppress wrinkles by stabilizing sheet conveyance speed.

A grounded metallic shaft member contacts rotating cables to dissipate static electricity and shield signal transmission.

A feeding control program manages conveyance sequences for recording media in image forming apparatuses.

Segmented rigid covers and removable light-shielding sheets protect the photoreceptor from pressure while reducing resource usage.

A swingable charging roller assembly uses coil springs and engaging protrusions to secure the unit without direct drum contact during installation.

A light scanning unit uses a synchronization detection optical system to detect divided light reflected at the polygon mirror edge.

A heater design uses a conductive substrate as shared wiring to reduce size and simplify manufacturing.

Prints job identification on the rear surface of output sheets, eliminating slip sheet waste while maintaining clear visual distinction.

Collection vane protrusions guide toner to a partitioning member, preventing scattering back onto the cleaned surface.

A movable member rotates about a supporting shaft to apply force that moves the developing cartridge.

Segmented intake ports and auxiliary inflow compensate for duct resistance variations, ensuring uniform air suction and improved UFP collection efficiency.

Segmented cleaning elements prevent toner leakage by containing residual material within the axial direction during paper dust collection.

A cam-controlled contact-and-separation unit positions a transfer roller to prevent toner contamination.

Strategic contact area variation compensates for thermal loss, achieving uniform temperature across the cylindrical film without complex heating zones.

Alternating charged fiber bundles on a developing unit seal surface prevent toner fusion and leakage at high speeds.

Segmenting reflection paths into specular and diffuse channels improves toner amount detection accuracy across varying surface coverage conditions.

A movable drawing member shifts process cartridges horizontally to position developing rollers against photosensitive drums.

A detecting unit measures reflected light from developer patches to adjust image density control based on cartridge memory data.

Dual-layer charge transport reduces lateral migration and stabilizes electrical cycling via hydroquinone antioxidants.