Electrographic Process Apparatus TRIZ Cases

Control unit estimates output voltage using low currents to prevent electric discharge from excessive transfer voltage.

A heater fixing holder secures heating elements to a roller using independent fitting and gripping portions.

A CO2 emission estimator calculates emissions from image forming apparatuses using a multiple regression model based on job settings.

Segmented feeders with a shared supply path reduce toner concentration differences across the axial length, shortening recovery time for large sheet handling.

Rotating sheets in the thickness direction prevents side reversal, eliminating reorientation steps and reducing post-processing complexity.

Controlling flake pigment thickness and binder crosslinking reduces toner adhesion to fixing rollers, preventing image contamination in subsequent prints.

A control unit adjusts sheet conveyance speed and toner image formation timing based on detected grammage.

A fixing device cam uses distinct pressure angles to control nip force.

Dynamic torque control counters transport load variations to prevent slippage and misregistration during image transfer.

Upstream heat generation exceeds downstream output to resolve non-uniform temperature distribution along the heating belt.

Controller adapts temperature suppression processing frequency to print rate, reducing unnecessary thermal actions during high-speed printing.

Controller stops continuous paper conveyance at an intermediate position after image fixing to facilitate inspection.

Downstream cleaning brushes remove extraneous matter before antistatic brushes eliminate static electricity from the pressing roller.

A duct merges outside air with hot exhaust to cool discharged sheets.

Apparatus calculates slope from multiple mark densities to determine target bias voltage, suppressing slope variations that degrade image quality.

A metal nip forming member conducts heat to the fixing rotator lateral end span via direct contact with a support structure.

A control unit adjusts document conveyance speed based on automatic magnification settings to optimize reading performance.

Divided heating blocks with thermal paste fill gaps between segments, enabling precise temperature control without increasing sensor count.

Variable linear speeds during sequential toner transfer fill depressions on rough media, resolving quality trade-offs.

A display control unit superimposes a draft image area onto a sheet state graphic to visualize photocopy settings on an operation panel.

A composite surface layer with urethane resin and silicon oxide prevents charge accumulation and toner adhesion in varying environments.

Optimized polycarbonate binder resin enhances crack resistance in electrophotographic photoreceptor belts exposed to fingerprints or hand cream.

A regulating member with a contact curved surface stabilizes developer layer thickness on the carrying roller.

Segmented end portion members independently support developing roller axes, eliminating continuous frames that increase device size.

An image forming apparatus uses a pipe overlapping a first rotatable member to heat air, preventing uneven glossiness caused by cooling during peeling.

A job processing apparatus detects operator actions to dynamically adjust timeout periods before executing subsequent jobs.

A fixing apparatus uses a thermal conductive member on the heater back surface to manage heat distribution in non-sheet-passing zones.

A bias control unit adjusts development bias output to maintain consistent image density across the photoconductor surface.

Processor selects sequencing groups to smooth power delivery, reducing flicker and EMC emissions during warm-up.

A unit support tray moves horizontally to align toner discharge portions with developer collection mechanisms for safe cartridge replacement.

Variable speed control of the agitating roller based on toner concentration resolves insufficient mixing during large toner replenishment events.

A developing cartridge positions holders and a coupling in an overlapping arrangement to reduce overall volume.

Positioning the small-size actuator upstream ensures curled normal-sized sheets contact the sensor, preventing feeding errors.

Movable connecting units engage driving and passive members via unevenness to transmit rotational power despite axis deviation.

Cover sensor detects closed state to repeat first process video, resolving operator confusion during incomplete troubleshooting.

A toner cartridge pushing-out device uses a cam and spring mechanism to control cartridge removal.

A separation claw assembly moves when paper passes through a heater roller, triggering a detector to signal the presence of a medium.

Inclined exit paths and porous filters prevent toner accumulation and stabilize internal pressure in developing devices.

Relocating the pressuring piece to the attachment member simplifies the toner case configuration while ensuring reliable drive coupling connection.

A rotatable hook on the lock lever temporarily moves away from guide surfaces to prevent collision damage while mounting an image forming unit.

An inclined surface guides a ring hook portion along a regulating wall to attach a charging wire without exceeding set tension limits.

A charging brush transfers accumulated toner particles back to the image bearing surface during rotation halts.

Segmented electroconductive layer domains suppress spots and stripes by balancing discharge stability against resin activation.

A controller adjusts laser beam energy density based on stored values to maintain consistent darkness levels across a photoconductive drum.

A charger positioning adjuster uses a spacer and detachable mounting part to set the distance between the corona charger and image carrier.

A fixing device uses a main heater and a sub heater with varying heat generation to achieve uniform temperature across the recording medium.

An elastic member with hardness above 55 degrees and relaxation below 2.6 degrees prevents toner adhesion, suppressing uneven image density.

Remote regulating portions minimize lid-to-mirror distance, reducing device size while maintaining stable beam alignment.

A control unit executes conveyance of waste toner from a first storage unit to a second storage unit during non-image forming periods.

Positioners constrain the scanning optical member against thermal expansion differences, reducing adhesive tensile forces and maintaining precise positioning.

An asymmetric guide structure prevents the fixing film from bending at tip ends during paper jam clearance, ensuring stable image fixation.

A controller detects incompatibility between multi-layer print jobs and configured settings, displaying error reports on the device screen.

A reading unit measures background density using a blank sheet to detect toner fogging in image forming apparatuses.

Dithering process adjusts toner density per mode to resolve low density calculation errors from high density extrapolation.

A relay electrode unit electrically connects parallel photosensitive units to a main body contact interface.

Segmented heating members warm the nip area rapidly while an intermediary support unit bears pressing force to protect the heating element from deformation.

A laser printer corrects image position using variable rotation speed data to maintain uniform line intervals.

Opposing rotating members in dual chambers maintain uniform developer distribution and prevent accumulation.

A processor corrects triac activation timing using detected zero-cross voltage and current values to stabilize power delivery.

Segmented snapshot acquisition preserves data accuracy within limited power supply periods, preventing incomplete initialization during startup.

A movable flap directs sheets along transport paths using a cover-linked moving mechanism to prevent curled sheet misentry.

A sheet feeding roller accelerates rotation based on detected following roller speed to maintain precise paper intervals.

A conductive contact portion grounds the user during drum extraction to prevent static discharge.

A control unit manages charging and transfer voltages across a nip portion to ensure uniform toner transfer.

A primary transfer roller uses a thin elastic layer to form a wound area with the image bearing member.

A single identifying unit processes detection signals from multiple rotating polygonal mirrors to correct image data.

Integrating elastic grounding paths between development and transfer units eliminates static buildup on shortened conveyance routes.

An eccentric cam shifts the excitation coil closer to the heating rotator during preheating, suppressing temperature unevenness without rotation.

A printing apparatus transmits identification data and usage amounts to a management server for tracking replaceable items.

Accumulated motor rotations and magnetic permeability measurements detect remaining toner levels without dedicated sensors.

Mounts the driving part on the original cover to eliminate main body protrusions and simplify maintenance access.

A sensor power control system interrupts energy supply to detection units during non-fixation states.

A developer electrode features a recessed section to accommodate the lateral wall of an adjacent drum cartridge.

Coupling transistors link adjacent transfer thyristors to ensure stable ON state transitions, preventing image disturbances caused by unstable light emission.

A control portion detects nongenuine replacement parts in an image forming apparatus and restricts user operations.

Segmentation and intermediary components constrain the connector against thermal expansion displacement, ensuring stable electrode alignment.

Curved guide ribs reduce rubbing and scratching of the medium by minimizing contact pressure along the transport path.

Dual sensors detect temperatures at the center and ends of a rotatable member to adjust heating, preventing unfixed toner on thick envelopes.

Segmenting a fixing device heat belt places ring-like electrodes in non-pressure zones, preventing roller-induced peeling and extending lifespan.

A developing roller uses a conductive resin layer with surface-treated metal oxides to ensure consistent toner charging.

Differential rotation between the developer carrier and image carrier scrapes corona products from the photoreceptor drum, eliminating dedicated cleaning time.

An image processing apparatus detects streaky images across varying print densities to identify causes within the image forming unit.

Spiral grooves on a tapered shell segment toner flow paths to resolve complexity-cost trade-offs in powder delivery systems.

A hardware processor acquires surface unevenness data to set a pattern image forming position on embossed recording media.

An intermittent clutch mechanism reduces power consumption and unwanted noise by disconnecting the second transmission path when idle.

A photoreceptor drum sleeve uses discrete protrusion units to stabilize the shaft and maintain parallelism with the developing roller.

Optimizing toner volume resistivity between 40×10^9 and 220×10^9 Ωcm alongside carrier coat durability above 90% prevents white spots and toner scattering.

Replacing PFA with a cyclic carbonate copolymer maintains high releasability at 200°C while eliminating material complexity.

A developer cartridge casing houses an elastic member that urges the developer carrier toward the image carrier to maintain proper contact pressure.

A supplying device features a separate gas flow path branching from the developer flow path to facilitate independent gas travel.

Bent plate positioning secures image forming frame components through controlled deformation, preventing distortion without adding weight or cost.

A constant-voltage element maintains primary-transfer voltage stability during concurrent secondary-transfer operations.

A control device stores print jobs in nonvolatile memory and restarts image forming from the discontinuation point after power restoration.

Segmented heat capacity in a fixing belt reduces hot offset by limiting thermal overshoot during toner fixation.

Vertical vibration of the transport pipe prevents toner retention and solidification in up-and-down configurations.

A high friction top layer on an impression medium stabilizes substrate transport during liquid electrophotography printing.

Control portion corrects primary transfer bias based on detected current and voltage values to improve secondary transferability on embossed paper.

Regulating spring phases eliminates circumferential pressure variations, stabilizing cleaning force on the photosensitive drum.

A control device sets order conditions based on residual quantity indices to transmit commands when cartridges reach depletion timing.