# US 2022/0032631 A1 · Print device functionalities > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2022/0032631 A1 - Document ID: US20220032631A1 - Status: Published application - Kind: A1 - Application number: 17/278,808 - Filed: 2018-12-04 - Published: 2022-02-03 - Earliest claimed: 2018-12-04 - Assignees: Hewlett-Packard Development Company, L.P. - Applicants: Hewlett-Packard Development Company, L.P. - Inventors: Jefferson P. Ward; David B. Novak; Erik Anderson - Web page: https://patentgrep.com/patent/US20220032631A1 ## CPC - B41J 2/17506: {Refilling of the cartridge} - G03G 15/55: {Self-diagnostics; Malfunction or lifetime display} - B33Y 50/02: for controlling or regulating additive manufacturing processes - B41J 2/17546: {electronically} - G06F 3/1222: {Increasing security of the print job} - G06F 3/123: {Software or firmware update, e.g. device firmware management} - G03G 21/04: Preventing copies being made of an original - G03G 21/14: Electronic sequencing control - B41J: TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS - G03G: ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY - B33Y: ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) ## Abstract A print device may include a refill interface, a processor, and a computer readable medium. The refill interface may have an electrical interface for transmission and reception of signals between the print device and a refill container. And the computer-readable medium may have instructions stored thereon that when executed by the processor are to cause the processor to fetch signals, via the electrical interface of the refill interface, from the refill container indicative of a licensed print functionality of the print device. The instructions may also be to enable the licensed print functionality on the print device responsive to the fetched signals and to maintain the licensed print functionality enabled subsequent to detachment of the refill container. ## Claims ### Claim 1 A print device comprising: a refill interface comprising an electrical interface for transmission and reception of signals between the print device and a refill container; a processor; and a computer-readable medium with instructions stored thereon that when executed by the processor are to cause the processor to: fetch signals, via the electrical interface of the refill interface, from the refill container indicative of a licensed print functionality of the print device; enable the licensed print functionality on the print device responsive to the fetched signals; and maintain the licensed print functionality enabled subsequent to detachment of the refill container. ### Claim 2 (depends on 1) The print device of claim 1 further comprising instructions that when executed by the processor are to cause the processor to: receive, from a client device, signals corresponding to a print job associated with the licensed print functionality; and process the print job using the licensed print functionality. ### Claim 3 (depends on 2) The print device of claim 2, wherein the to be fetched signals also comprise signals indicative of an additional licensed print functionality; and the print device further comprises instructions to cause the print device to perform the additional licensed print functionality absent reception of a print job. ### Claim 4 (depends on 1) The print device of claim 1 further comprising instructions that when executed by the processor are to cause the processor to maintain enablement of the licensed print functionality subsequent to supply removal. ### Claim 5 (depends on 1) The print device of claim 1 further comprising instructions that when executed by the processor are to: compare the signals indicative of the licensed print functionality with functionality supported by the print device; wherein enablement of the licensed print functionality is to also be based on a comparison of the signals indicative of the licensed print function with the functionality supported by the print device. ### Claim 6 (depends on 5) The print device of claim 5 further comprising instructions that when executed by the processor are to prompt a firmware update, a hardware update, or a combination thereof responsive to a determination that the licensed print functionality is unsupported by the device. ### Claim 7 (depends on 1) The print device of claim 1 further comprising instructions that when executed by the processor are to disable the licensed print functionality subsequent to reception of additional signals received from an additional supply. ### Claim 8 A method of enabling a licensed print functionality on a print device without exchanging authentication signals with a remote device, the method comprising: fetching, by a processor of the print device, signals indicative of the licensed print functionality from a supply of the print device; comparing, by the processor, the licensed print functionality with a plurality of print functionalities supported by the print device; and enabling, by the processor, the licensed print functionality responsive to determination that the licensed print functionality is supported. ### Claim 9 (depends on 8) The method of claim 8 further comprising setting, by the processor, a constraint on the enabled print functionality. ### Claim 10 (depends on 9) The method of claim 9, wherein the setting the constraint comprises setting a time constraint on a duration of time during which the licensed print functionality is to be enabled. ### Claim 11 A non-transitory computer-readable medium comprising instructions that when executed by a processor of a print device are to cause the print device to: fetch, via an electrical interface of a refill interface of the print device, signals indicative of a licensed print functionality stored on a refill container; enable the licensed print functionality on the print device responsive to the to be fetched signals; and maintain the licensed print functionality enabled subsequent to detachment of the refill container. ### Claim 12 (depends on 11) The non-transitory computer-readable medium of claim 11 further comprising instructions that when executed by the processor are to cause the print device to: receive signals indicative of detachment of the refill container from the print device; receive signals indicative of a print job from a device external to the print device, the print job associated with the licensed print functionality; and process the print job using the licensed print functionality subsequent to detachment of the refill container. ### Claim 13 (depends on 12) The non-transitory computer-readable medium of claim 12 further comprising instructions that when executed by the processor are to cause the print device to: received signals indicative of attachment of an additional refill container to the print device; fetch signals indicative of the enabled licensed print functionality from the additional refill container; and disable the licensed print functionality based on the fetched signals. ### Claim 14 (depends on 11) The non-transitory computer-readable medium of claim 11 further comprising instructions that when executed by the processor are to cause the print device to transmit an indication of the enabled print functionality external to the print device. ### Claim 15 (depends on 11) The non-transitory computer-readable medium of claim 11 further comprising instructions that when executed by the processor are to cause the print device to: determine that the refill container contains an unauthenticated print substance; and maintain enablement of the licensed print functionality subsequent to a determination that the refill container contains the unauthenticated print substance.