Inventor

COOK WILLIAM PAUL

US49 patents

⚠️ This page may combine multiple inventors who share the name “COOK WILLIAM PAUL”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

COOK WILLIAM PAUL

LEXMARK INT INC

Off-carrier inkjet print supply with memory

Method and apparatus for refilling ink jet cartridges with minimum ink loss

Multiple-cartridge off-board ink supplies for color ink jet printers

On carrier secondary ink tank with memory and flow control means

Refillable disposable inkjet cartridge with foam-filled and free ink reservoirs

Ink cartridge and method for determining ink volume in said ink cartridge

Inkjet cartridge with simultaneous electrical and fluid connections

Electronic skew adjustment in an ink jet printer

Ink jet semiconductor chip structure

Resistive heater comprising first and second resistive traces, a fuser subassembly including such a resistive heater and a universal heating apparatus including first and second resistive traces

Media timing based on stack height for use within an image forming device

Input tray and drive mechanism using a single motor for an image forming device

Serial integrated scan-based testing of ink jet print head

Media handling system for maintaining stack top within given range of pick positions during feeding sheets from stack top

Packaging detection and removal for an image forming device

Image forming device with multimode duplexer

Optical sensor arrangement for start of scan detection and improved vertical beam alignment range

Ink jet print cartridge having active cooling cell

Method and apparatus for filling a rigid closed volume through a septum

System and methods for reducing component wear in an imaging device

Method to control transfer of black and color toned images during simplex printing

Media retractor and recycler system for automatic document feeders and duplexers and method for using same

Method and apparatus to control waste toner collection in an image forming apparatus

Scanning print head

System and method for controlling media bubble formation in an imaging device

Methods of moving a media sheet from an input tray and into a media path within an image forming device

Methods for determining when to transition between color printing and black-only printing in an image forming device

Method and apparatus for detecting the position of an inkjet printhead

System and methods for reducing component wear in an imaging device

Multifunction sensor for an image forming device

Method and apparatus to control waste toner collection in an image forming apparatus

Traveling wave and vertical toner transfer

Method and printer assembly for consistent power control in fuser assembly of electrophotographic printer

Dual-range power supply for an image forming device

Media handling system for lowering and raising stack platform responsive to moving bin between external and internal positions

Fuser assembly fan control

Method for dynamically lifting elevator platform of media input tray during ongoing media process

Method to control transfer of black and color toned images during combined simplex duplex printing

Image forming device with multimode duplexer

Control of overheating in an image fixing assembly

Method for associating a customer accessible supply item with an imaging apparatus

Methods to control transitions between color printing and black-only printing in an image forming device

CAMPBELL THOMAS JUDSON

Printer including a fuser assembly with backup member temperature sensor

Printer including a fuser assembly with backup member temperature sensor

Fuser assembly heater temperature control

COOK WILLIAM PAUL

Backup of replaceable device information in an image-forming apparatus

Power control for a printer fuser

TONGES JEFFREY LAWRENCE

Devices and methods for retracting a cartridge in an image forming devices

Devices and methods for retracting a cartridge in an image forming device