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Printer and scanner troubleshooting
Browse printers & scanners by the symptom the customer actually sees. Each record has its own observation, isolation test, correction, verification and stop condition; manufacturer names are not swapped into generic copy.
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754 complete records in this directoryAirPrint or Mopria discovery behaves incorrectly or produces the wrong result
A wrong result requires checking inputs, mode, calibration and output separately; a working control path can still be configured for the wrong state. This record isolates AirPrint or Mopria discovery through printer service versus guest isolation, VPN, multicast and stale IP.
Open record Printers · mobile printingAirPrint or Mopria discovery fails for one device, job or paper type
A printer problem limited to one sender, document, tray or media type should be repaired at that boundary, not with a factory reset. This record isolates AirPrint or Mopria discovery through printer service versus guest isolation, VPN, multicast and stale IP.
Open record Printers · mobile printingAirPrint or Mopria discovery is not working
A complete failure should be separated into power or eligibility, the external path, and the component itself before any reset. This record isolates AirPrint or Mopria discovery through printer service versus guest isolation, VPN, multicast and stale IP.
Open record Printers · mobile printingAirPrint or Mopria discovery is unusually slow or delayed
A delay can come from capacity, weak signal, background work, protection or a service wait; measuring the exact stage prevents the wrong repair. This record isolates AirPrint or Mopria discovery through printer service versus guest isolation, VPN, multicast and stale IP.
Open record Printers · mobile printingAirPrint or Mopria discovery keeps disconnecting or working intermittently
Intermittent behavior is diagnosed by the trigger—movement, heat, load, sleep, distance or time—not by repeating broad resets. This record isolates AirPrint or Mopria discovery through printer service versus guest isolation, VPN, multicast and stale IP.
Open record Printers · mobile printingAirPrint or Mopria discovery stopped working after an update, outage or hardware change
A failure immediately after a known change should be checked for new defaults, stale pairing, power sequencing or compatibility before factory recovery. This record isolates AirPrint or Mopria discovery through printer service versus guest isolation, VPN, multicast and stale IP.
Open record Printers · duplexAutomatic duplex paper path behaves incorrectly or produces the wrong result
A wrong result requires checking inputs, mode, calibration and output separately; a working control path can still be configured for the wrong state. This record isolates automatic duplex paper path through mechanical duplexer versus driver binding edge, paper weight and curl.
Open record Printers · duplexAutomatic duplex paper path fails for one device, job or paper type
A printer problem limited to one sender, document, tray or media type should be repaired at that boundary, not with a factory reset. This record isolates automatic duplex paper path through mechanical duplexer versus driver binding edge, paper weight and curl.
Open record Printers · duplexAutomatic duplex paper path is not working
A complete failure should be separated into power or eligibility, the external path, and the component itself before any reset. This record isolates automatic duplex paper path through mechanical duplexer versus driver binding edge, paper weight and curl.
Open record Printers · duplexAutomatic duplex paper path is unusually slow or delayed
A delay can come from capacity, weak signal, background work, protection or a service wait; measuring the exact stage prevents the wrong repair. This record isolates automatic duplex paper path through mechanical duplexer versus driver binding edge, paper weight and curl.
Open record Printers · duplexAutomatic duplex paper path keeps disconnecting or working intermittently
Intermittent behavior is diagnosed by the trigger—movement, heat, load, sleep, distance or time—not by repeating broad resets. This record isolates automatic duplex paper path through mechanical duplexer versus driver binding edge, paper weight and curl.
Open record Printers · duplexAutomatic duplex paper path stopped working after an update, outage or hardware change
A failure immediately after a known change should be checked for new defaults, stale pairing, power sequencing or compatibility before factory recovery. This record isolates automatic duplex paper path through mechanical duplexer versus driver binding edge, paper weight and curl.
Open record Printers · photoBorderless photo expansion behaves incorrectly or produces the wrong result
A wrong result requires checking inputs, mode, calibration and output separately; a working control path can still be configured for the wrong state. This record isolates borderless photo expansion through photo/paper aspect ratio versus driver expansion, orientation and media size.
Open record Printers · photoBorderless photo expansion fails for one device, job or paper type
A printer problem limited to one sender, document, tray or media type should be repaired at that boundary, not with a factory reset. This record isolates borderless photo expansion through photo/paper aspect ratio versus driver expansion, orientation and media size.
Open record Printers · photoBorderless photo expansion is not working
A complete failure should be separated into power or eligibility, the external path, and the component itself before any reset. This record isolates borderless photo expansion through photo/paper aspect ratio versus driver expansion, orientation and media size.
Open record Printers · photoBorderless photo expansion is unusually slow or delayed
A delay can come from capacity, weak signal, background work, protection or a service wait; measuring the exact stage prevents the wrong repair. This record isolates borderless photo expansion through photo/paper aspect ratio versus driver expansion, orientation and media size.
Open record Printers · photoBorderless photo expansion keeps disconnecting or working intermittently
Intermittent behavior is diagnosed by the trigger—movement, heat, load, sleep, distance or time—not by repeating broad resets. This record isolates borderless photo expansion through photo/paper aspect ratio versus driver expansion, orientation and media size.
Open record Printers · photoBorderless photo expansion stopped working after an update, outage or hardware change
A failure immediately after a known change should be checked for new defaults, stale pairing, power sequencing or compatibility before factory recovery. This record isolates borderless photo expansion through photo/paper aspect ratio versus driver expansion, orientation and media size.
Open record Printers · photo layoutBorderless photo printing crops the edges
Borderless printing deliberately enlarges the image past the paper edge to avoid white borders. The expansion amount, aspect ratio and app crop control determine what is lost.
Open record Brother printer · OfflineBrother printer is offline or will not print
Clear any printer-panel error, confirm the cable or same-network connection, set the correct Brother queue as default, and clear paused jobs. Reinstall the full driver package only after the device is reachable.
Open record Canon printer · OfflineCanon printer says offline in Windows
Verify printer power and panel status, select the correct Canon queue, power-cycle the printer, then confirm Wi-Fi communication and restart the router/computer. Clear Use Printer Offline before reinstalling software.
Open record Printers · duplexDouble-sided pages print upside down
Upside-down backs usually mean the duplex binding edge is wrong: flip on long edge versus short edge. Orientation and app print dialog both matter.
Open record Epson printer · OfflineEpson printer is offline on Wi-Fi
Print a nozzle check or internal status page without the computer, clear panel errors, confirm the printer and computer share a network, then restart all three. A successful internal print points to the computer, queue or network—not the print engine.
Open record HP printer · OfflineHP printer is offline or unavailable
Check the printer display for an error, verify the USB or network connection, restart the printer and computer, then use HP’s diagnostic. Remove and re-add the printer only after confirming it remains on the correct Wi-Fi.
Open record Printers · ink systemInkjet printhead nozzles behaves incorrectly or produces the wrong result
A wrong result requires checking inputs, mode, calibration and output separately; a working control path can still be configured for the wrong state. This record isolates inkjet printhead nozzles through ink supply and vents versus nozzle blockage, air and printhead electronics.
Open record Printers · ink systemInkjet printhead nozzles fails for one device, job or paper type
A printer problem limited to one sender, document, tray or media type should be repaired at that boundary, not with a factory reset. This record isolates inkjet printhead nozzles through ink supply and vents versus nozzle blockage, air and printhead electronics.
Open record Printers · ink systemInkjet printhead nozzles is not working
A complete failure should be separated into power or eligibility, the external path, and the component itself before any reset. This record isolates inkjet printhead nozzles through ink supply and vents versus nozzle blockage, air and printhead electronics.
Open record Printers · ink systemInkjet printhead nozzles is unusually slow or delayed
A delay can come from capacity, weak signal, background work, protection or a service wait; measuring the exact stage prevents the wrong repair. This record isolates inkjet printhead nozzles through ink supply and vents versus nozzle blockage, air and printhead electronics.
Open record Printers · ink systemInkjet printhead nozzles keeps disconnecting or working intermittently
Intermittent behavior is diagnosed by the trigger—movement, heat, load, sleep, distance or time—not by repeating broad resets. This record isolates inkjet printhead nozzles through ink supply and vents versus nozzle blockage, air and printhead electronics.
Open record Printers · ink systemInkjet printhead nozzles stopped working after an update, outage or hardware change
A failure immediately after a known change should be checked for new defaults, stale pairing, power sequencing or compatibility before factory recovery. This record isolates inkjet printhead nozzles through ink supply and vents versus nozzle blockage, air and printhead electronics.
Open record Printers · toner fixingLaser printer output smudges when touched
Loose toner means it was not fused correctly, often because the media type is wrong, paper is unsupported/damp or the fuser is failing. Do not touch internal hot parts.
Open record Laser printers · fusingLaser-printer fuser behaves incorrectly or produces the wrong result
A wrong result requires checking inputs, mode, calibration and output separately; a working control path can still be configured for the wrong state. This record isolates laser-printer fuser through paper type/weight and dampness versus fuser temperature and hardware.
Open record Laser printers · fusingLaser-printer fuser fails for one device, job or paper type
A printer problem limited to one sender, document, tray or media type should be repaired at that boundary, not with a factory reset. This record isolates laser-printer fuser through paper type/weight and dampness versus fuser temperature and hardware.
Open record Laser printers · fusingLaser-printer fuser is not working
A complete failure should be separated into power or eligibility, the external path, and the component itself before any reset. This record isolates laser-printer fuser through paper type/weight and dampness versus fuser temperature and hardware.
Open record Laser printers · fusingLaser-printer fuser is unusually slow or delayed
A delay can come from capacity, weak signal, background work, protection or a service wait; measuring the exact stage prevents the wrong repair. This record isolates laser-printer fuser through paper type/weight and dampness versus fuser temperature and hardware.
Open record Laser printers · fusingLaser-printer fuser keeps disconnecting or working intermittently
Intermittent behavior is diagnosed by the trigger—movement, heat, load, sleep, distance or time—not by repeating broad resets. This record isolates laser-printer fuser through paper type/weight and dampness versus fuser temperature and hardware.
Open record Laser printers · fusingLaser-printer fuser stopped working after an update, outage or hardware change
A failure immediately after a known change should be checked for new defaults, stale pairing, power sequencing or compatibility before factory recovery. This record isolates laser-printer fuser through paper type/weight and dampness versus fuser temperature and hardware.
Open record Laser printers · imagingLaser-printer toner and drum system behaves incorrectly or produces the wrong result
A wrong result requires checking inputs, mode, calibration and output separately; a working control path can still be configured for the wrong state. This record isolates laser-printer toner and drum system through toner cartridge versus separate drum, transfer and fuser pattern.
Open record Laser printers · imagingLaser-printer toner and drum system fails for one device, job or paper type
A printer problem limited to one sender, document, tray or media type should be repaired at that boundary, not with a factory reset. This record isolates laser-printer toner and drum system through toner cartridge versus separate drum, transfer and fuser pattern.
Open record Laser printers · imagingLaser-printer toner and drum system is not working
A complete failure should be separated into power or eligibility, the external path, and the component itself before any reset. This record isolates laser-printer toner and drum system through toner cartridge versus separate drum, transfer and fuser pattern.
Open record Laser printers · imagingLaser-printer toner and drum system is unusually slow or delayed
A delay can come from capacity, weak signal, background work, protection or a service wait; measuring the exact stage prevents the wrong repair. This record isolates laser-printer toner and drum system through toner cartridge versus separate drum, transfer and fuser pattern.
Open record Laser printers · imagingLaser-printer toner and drum system keeps disconnecting or working intermittently
Intermittent behavior is diagnosed by the trigger—movement, heat, load, sleep, distance or time—not by repeating broad resets. This record isolates laser-printer toner and drum system through toner cartridge versus separate drum, transfer and fuser pattern.
Open record Laser printers · imagingLaser-printer toner and drum system stopped working after an update, outage or hardware change
A failure immediately after a known change should be checked for new defaults, stale pairing, power sequencing or compatibility before factory recovery. This record isolates laser-printer toner and drum system through toner cartridge versus separate drum, transfer and fuser pattern.
Open record Printers · Wi-Fi setupPrinter cannot find the Wi-Fi network during setup
Many printers require 2.4 GHz, WPA2-compatible security, visible SSID and a nearby setup position. A phone seeing the network does not prove the printer supports its band/security.
Open record Printers · colorPrinter colors are wrong or one color is missing
Wrong color usually follows an empty/blocked color channel, protective material, incorrect supply placement, nozzle failure or color-management mismatch. Start with an internal nozzle/quality pattern.
Open record Printers · color workflowPrinter driver color management behaves incorrectly or produces the wrong result
A wrong result requires checking inputs, mode, calibration and output separately; a working control path can still be configured for the wrong state. This record isolates printer driver color management through hardware nozzle pattern versus application, driver and operating-system profile.
Open record Printers · color workflowPrinter driver color management fails for one device, job or paper type
A printer problem limited to one sender, document, tray or media type should be repaired at that boundary, not with a factory reset. This record isolates printer driver color management through hardware nozzle pattern versus application, driver and operating-system profile.
Open record Printers · color workflowPrinter driver color management is not working
A complete failure should be separated into power or eligibility, the external path, and the component itself before any reset. This record isolates printer driver color management through hardware nozzle pattern versus application, driver and operating-system profile.
Open record Printers · color workflowPrinter driver color management is unusually slow or delayed
A delay can come from capacity, weak signal, background work, protection or a service wait; measuring the exact stage prevents the wrong repair. This record isolates printer driver color management through hardware nozzle pattern versus application, driver and operating-system profile.
Open record Printers · color workflowPrinter driver color management keeps disconnecting or working intermittently
Intermittent behavior is diagnosed by the trigger—movement, heat, load, sleep, distance or time—not by repeating broad resets. This record isolates printer driver color management through hardware nozzle pattern versus application, driver and operating-system profile.
Open record Printers · color workflowPrinter driver color management stopped working after an update, outage or hardware change
A failure immediately after a known change should be checked for new defaults, stale pairing, power sequencing or compatibility before factory recovery. This record isolates printer driver color management through hardware nozzle pattern versus application, driver and operating-system profile.
Open record Multifunction printers · faxPrinter fax line behaves incorrectly or produces the wrong result
A wrong result requires checking inputs, mode, calibration and output separately; a working control path can still be configured for the wrong state. This record isolates printer fax line through printer modem versus wall line, splitter, VoIP adapter and number configuration.
Open record Multifunction printers · faxPrinter fax line fails for one device, job or paper type
A printer problem limited to one sender, document, tray or media type should be repaired at that boundary, not with a factory reset. This record isolates printer fax line through printer modem versus wall line, splitter, VoIP adapter and number configuration.
Open record Multifunction printers · faxPrinter fax line is not working
A complete failure should be separated into power or eligibility, the external path, and the component itself before any reset. This record isolates printer fax line through printer modem versus wall line, splitter, VoIP adapter and number configuration.
Open record Multifunction printers · faxPrinter fax line is unusually slow or delayed
A delay can come from capacity, weak signal, background work, protection or a service wait; measuring the exact stage prevents the wrong repair. This record isolates printer fax line through printer modem versus wall line, splitter, VoIP adapter and number configuration.
Open record Multifunction printers · faxPrinter fax line keeps disconnecting or working intermittently
Intermittent behavior is diagnosed by the trigger—movement, heat, load, sleep, distance or time—not by repeating broad resets. This record isolates printer fax line through printer modem versus wall line, splitter, VoIP adapter and number configuration.
Open record Multifunction printers · faxPrinter fax line stopped working after an update, outage or hardware change
A failure immediately after a known change should be checked for new defaults, stale pairing, power sequencing or compatibility before factory recovery. This record isolates printer fax line through printer modem versus wall line, splitter, VoIP adapter and number configuration.
Open record Printers · blank outputPrinter feeds paper but prints blank pages
Blank pages can mean empty/unvented ink, protective tape, clogged nozzles, wrong paper path or a job containing blank content. A built-in test page separates printer hardware from the computer.
Open record Printers · firmwarePrinter firmware update behaves incorrectly or produces the wrong result
A wrong result requires checking inputs, mode, calibration and output separately; a working control path can still be configured for the wrong state. This record isolates printer firmware update through update server versus printer storage, connection and exact model.
Open record Printers · firmwarePrinter firmware update fails for one device, job or paper type
A printer problem limited to one sender, document, tray or media type should be repaired at that boundary, not with a factory reset. This record isolates printer firmware update through update server versus printer storage, connection and exact model.
Open recordStructured depth, not empty permutations
Every published record carries a direct answer, scope, ordered fixes, risk notes and sources.
Device and manufacturer hubs share a consistent record system, but each answer carries the relevant controls, fault boundaries, consequences and official support entry point for that platform.
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