Hewlett-packard Development Company, L.p.

Hewlett-packard Company

Purdue Research Foundation

Paul L Jeran

Jefferson Patrick Ward

Stephen D Panshin

Gabriel Scott McDaniel

Mark Q Shaw

Shell Sterling Simpson

Jan Philip Allebach

Amy Ruth Reibman

Terry M Nelson

Chuohao Tang

Jeffrey H Luke

Erik D Ness

Marvin D Nelson

Chris Richard Gunning

Steven T Castle

Bartley Mark Hirst

Robert E Haines

David B Novak

Eric L Andersen

Sean Daniel Fitzgerald

Anthony Peter Holden

Douglas G Keithley

Kenneth Kay Smith

Doron Shaked

Travis J Parry

Quintin T Phillips

David J Arcaro

Robin Pierce Yergenson

Honee L Mesa

Sean Michael Collison

Angela Kay Hanson

Dee Lee Chou

Elijah Houle

Alex Michael Oaks

James J Girard

David L Smith

Wayne E Foote

Laurent Pizot

Curt Nelson Van Lydegraf

Brian Christopher Mayer

Kenneth Lee Oakeson

George Henry Kerby

Terry P Mahoney

James Phillip Slupe

Kenneth A Lindblom

Gary L Holland

Kyle Mannari

Juan Guzman

David S Pitou

Jesse Otto Sutherland, Iii

Katelyn Christene Morse

Teresa Marie O'Keeffe

Kyle Michel

Robert Taylor

Thomas M Sternberg

James Michael Magdich

Stephen C Kranz

Benjamin D Nielsen

Choon Leng Tan

Ella Grace Brucker Suznevich

Robin P Yerenson

Jeffrey Michael Frechette

Lee Jackson

Teresa M O'keeffe

Mark Quentin Shaw

An example method comprising requesting authorization to reprocess a replaceable supply component using first data stored in memory of the replaceable supply component and an interface, the first data including original manufacturing data for the replaceable supply component. The method further comprises, in response to the request, receiving second data using the interface, and appending the original manufacturing data stored in the memory with the second data to designate the replaceable supply component as reprocessed.

Appending data on a replaceable supply component

A logic circuit, or method using the same, may include a memory storing (i) a plurality of partition groups, each partition group including a plurality of partitions, and (ii) a partition map defining an address and access mode for each of said partitions, defining different access modes for at least some of the partitions. The plurality of partition groups may comprise (i) a general use partition group including a first consumable level counter; (ii) a second use partition group including a second incrementally updatable consumable level counter; and (iii) a guide partition group including a use indicator to indicate which of the first and second consumable level counters to use.

Logic circuitry

Reprocessing of a replaceable supply component may include receiving from an encoding device and using an interface communicatively coupled to the encoding device, a request blob to reprocess a replaceable supply component. The method may include in response to cryptographically verifying the request blob, extracting from the request blob, a supply identifier and raw supply data. The method further includes using the supply identifier and raw supply data, generating a reprocess structure to append or amend original manufacturing data for the replaceable supply component, and providing a response blob to the encoding device, to designate the replaceable supply component as a reprocessed supply component.

Reprocessing of a replaceable supply component

A printing device determines that a consumable item newly installed within a printing device has previously been used, based on a remaining life of the consumable item. In response to determining that the consumable item has previously been used, the printing device resets the remaining life of the consumable item.

Resetting printing device consumable item remaining life

That content on a last page of a print job having multiple pages satisfies a residue threshold is detected. In response to detecting that the content on the last page satisfies the residue threshold, the print job is modified to have one fewer page. A printing device is caused to print the modified print job.

Modifying print job to have one fewer page when content on last page satisfies residue threshold

A print material refill container includes a housing and a chamber, within the housing, to contain a print material. The print material refill container includes a physical indicator subject to modification based on an engagement of the physical indicator with an engagement member of a printing device when the print material refill container engages the printing device to deliver the print material to a reservoir of the printing device. The physical indicator indicates an unused condition of the print material refill container when the physical indicator has a first state prior to the modification, and the physical indicator indicates a used condition of the print material refill container when the physical indicator has a second state subsequent to the modification.

Physical indicators of print material refill containers

An example printing material cartridge may include an input/output device and a memory. The memory may store an identifier of the cartridge, a usage counter of the cartridge, and an indicator that the cartridge has reached a usage threshold. The memory may also store a usage offset equal to a historical usage of the cartridge, the usage offset for determining a new remaining usage of the cartridge.

Determining new remaining usage of cartridge

In some examples, a computing device can include a processing resource and a memory resource storing instructions to cause the processing resource to determine, via an input, whether to sustainably process a print component associated with a printing device, determine, in response to a determination to sustainably process the print component a processing mechanism for the print component and a shipping location to ship the print component, and generate a shipping label for the print component associated with the shipping location.

Shipping print components

Parameters particular to the consumable item and that affect calculation of an estimated remaining life of the consumable item when used in the printing device for printing are received. A payload is constructed based on the parameters. The printing device is to use the parameters when calculating the estimated remaining life of the consumable item during usage of the consumable item for printing.

Parameters particular to consumable item and affecting estimated remaining life of consumable item

According to examples, an apparatus may include a processor and a memory on which is stored instructions that when executed by the processor, cause the processor to determine that data stored in a memory device of a printer cartridge installed in a printing device is to be updated. The printing device may be in remote communication with the apparatus via a network connection. The instructions may also cause the processor to identify update data that is to be used to update the data stored in the memory device. The instructions may further cause the processor to communicate, via the network connection with the printing device, the identified update data to the printing device. The printing device may update the data stored in the memory device of the printer cartridge with the update data.

Update print data stored in memory devices of printer cartridges

A server device receives a request over a network for settings for a printing device having an identifier. The server device determines whether the settings for the printing device were previously received from the printing device and responsively saved by the server device, based on the identifier of the printing device. In response to determining that the settings for the printing device were previously received from the printing device and responsively saved by the server device, the server device transmits the settings over the network to reconfigure the printing device according to the settings.

Printing device reconfiguration according to settings previously saved by server device

An example replaceable printer component includes a communication engine. The communication engine indicates to a host an operation to be performed by the host. The replaceable printer component also includes a sensor engine to measure a property affected by the operation. The replaceable printer component includes a verification engine to determine whether the host performed the operation based on the measurement of the property.

Verification of authenticity of replaceable printer components and disable access to a feature based on operation is not performed by host

Examples disclosed herein relate to an imaging device. The imaging device to include a discharge member to discharge a first pattern on a photoconductor; and a writing engine to control the discharge member to discharge a second pattern to the photoconductor to obscure any latent pattern formed from the first pattern remaining on the photoconductor.

Pattern discharge to photoconductor

In one example, a printing material cartridge includes a container to contain a printing material and a memory to enable an exchange of information between the cartridge and a printer controller when the cartridge is installed in the printer. The memory includes a first write once then read only memory with a first memory address, a second write once then read only memory with a second memory address, the first memory address having information to prompt the printer controller to write a printer identifier to the second memory address, and a memory controller to control data storage and retrieval to and from the write once then read only memories and to control the exchange of information with the printer controller.

Printing material cartridge

In one example, a printing material cartridge includes a container to contain a printing material and a memory to enable an exchange of information between the cartridge and a printer controller when the cartridge is installed in a printer. The memory includes a write once then read only first memory address, a write once then read only memory second memory address, and a memory controller to control data storage and retrieval to and from the first and second memory addresses and to control the exchange of information with the printer controller. The second memory address has information to prompt the printer controller to write a printer fleet identifier to the first memory address.

Growing community of inventors

Meridian, ID, United States of America

Paul L Jeran