Hp officejet pro 8720 pdf manual

HP OfficeJet Pro 8720 Printer Official First Look HP

HP OfficeJet Pro 8720 Printer Official First Look HP. HP Officejet Pro 8720 All-in-One - multifunction printer - color overview and full product specs on CNET., Sep 16, 2016В В· www.hp.com/go/officejetpro - HP OfficeJet Pro 8720 innovative new design delivers lightning fast two-sided printing that helps save time and money. Easily pr....

HP OfficeJet Pro 8720 Printer Official First Look HP

HP OfficeJet Pro 8720 Printer Official First Look HP. Windows 10 and HP OFFICEJET PRO 8720 ALL-IN-ONE - Attempting to adjust scan profile/short-cut/preset вЂЋ01-17 Nothing like the software described in the manual. I have the most recent full HP software bundle installed. I see nothing in the HP Smart app, the HP Scan and Capture app nor the HP Print and Scan Doctor app that provides access to, Do you have a question about the HP OfficeJet Pro 8720? Ask the question you have about the HP OfficeJet Pro 8720 here simply to other product owners. Provide a clear and comprehensive description of the problem and your question. The better your problem and question is described, the easier it is for other HP OfficeJet Pro 8720 owners to.

Sep 16, 2016В В· www.hp.com/go/officejetpro - HP OfficeJet Pro 8720 innovative new design delivers lightning fast two-sided printing that helps save time and money. Easily pr... HP OfficeJet Pro 8028 manual download, user guides. Operating instructions, installation, set up, Wi-Fi wireless connection, how to print and scan, troubleshooting. GuidesManuals. Guides & Manuals. HP OfficeJet Pro 8028 printer manual [Free Download / PDF] HP OfficeJet Pro 8028 manual download, user guide. Help, instructions, installation

Jan 23, 2020В В· Compare With: HP OfficeJet Pro 6978. HP OfficeJet Pro 8720 Driver. The supported printer driver for this system includes HP Dropbox, HP Google Drive and Microsoft DotNet. HP OfficeJet Pro 8720 Setup. Every detail about HP OfficeJet Pro 8720 Setup is included in the manual. HP OfficeJet Pro 8720 All-in-One Printer Specifications . DOWNLOAD SPECS PDF. Print speed black. ISO Laser comparable, Professional Mode: Up to 24 ppm, General Office Mode: Up to 37 ppm [5] (Manual-Off), 6.70 watts (Standby), 1.30 watts (Sleep) [3] Power measurements are based on ENERGY STARВ® OM test procedure with 230 VAC, 50 Hz input.

Jan 23, 2020В В· Compare With: HP OfficeJet Pro 6978. HP OfficeJet Pro 8720 Driver. The supported printer driver for this system includes HP Dropbox, HP Google Drive and Microsoft DotNet. HP OfficeJet Pro 8720 Setup. Every detail about HP OfficeJet Pro 8720 Setup is included in the manual. Do you have a question about the HP OfficeJet Pro 8720? Ask the question you have about the HP OfficeJet Pro 8720 here simply to other product owners. Provide a clear and comprehensive description of the problem and your question. The better your problem and question is described, the easier it is for other HP OfficeJet Pro 8720 owners to

HP OfficeJet Pro 8720 All-in-One Printer Specifications . DOWNLOAD SPECS PDF. Print speed black. ISO Laser comparable, Professional Mode: Up to 24 ppm, General Office Mode: Up to 37 ppm [5] (Manual-Off), 6.70 watts (Standby), 1.30 watts (Sleep) [3] Power measurements are based on ENERGY STARВ® OM test procedure with 230 VAC, 50 Hz input. Sep 16, 2016В В· www.hp.com/go/officejetpro - HP OfficeJet Pro 8720 innovative new design delivers lightning fast two-sided printing that helps save time and money. Easily pr...

Do you have a question about the HP OfficeJet Pro 8720? Ask the question you have about the HP OfficeJet Pro 8720 here simply to other product owners. Provide a clear and comprehensive description of the problem and your question. The better your problem and question is described, the easier it is for other HP OfficeJet Pro 8720 owners to Sep 16, 2016В В· www.hp.com/go/officejetpro - HP OfficeJet Pro 8720 innovative new design delivers lightning fast two-sided printing that helps save time and money. Easily pr...

HP OfficeJet Pro 8720 All-in-One Printer Specifications . DOWNLOAD SPECS PDF. Print speed black. ISO Laser comparable, Professional Mode: Up to 24 ppm, General Office Mode: Up to 37 ppm (manual-off), 6.70 watts (standby), 1.30 watts (sleep) [3] Power measurements are based on ENERGY STARВ® OM test procedure with 230 VAC, 50 Hz input. HP OfficeJet Pro 8028 manual download, user guides. Operating instructions, installation, set up, Wi-Fi wireless connection, how to print and scan, troubleshooting. GuidesManuals. Guides & Manuals. HP OfficeJet Pro 8028 printer manual [Free Download / PDF] HP OfficeJet Pro 8028 manual download, user guide. Help, instructions, installation

Do you have a question about the HP OfficeJet Pro 8720? Ask the question you have about the HP OfficeJet Pro 8720 here simply to other product owners. Provide a clear and comprehensive description of the problem and your question. The better your problem and question is described, the easier it is for other HP OfficeJet Pro 8720 owners to HP OfficeJet Pro 8720 All-in-One Printer Specifications . DOWNLOAD SPECS PDF. Print speed black. ISO Laser comparable, Professional Mode: Up to 24 ppm, General Office Mode: Up to 37 ppm (manual-off), 6.70 watts (standby), 1.30 watts (sleep) [3] Power measurements are based on ENERGY STARВ® OM test procedure with 230 VAC, 50 Hz input.

Do you have a question about the HP OfficeJet Pro 8720? Ask the question you have about the HP OfficeJet Pro 8720 here simply to other product owners. Provide a clear and comprehensive description of the problem and your question. The better your problem and question is described, the easier it is for other HP OfficeJet Pro 8720 owners to HP OfficeJet Pro 8028 manual download, user guides. Operating instructions, installation, set up, Wi-Fi wireless connection, how to print and scan, troubleshooting. GuidesManuals. Guides & Manuals. HP OfficeJet Pro 8028 printer manual [Free Download / PDF] HP OfficeJet Pro 8028 manual download, user guide. Help, instructions, installation

HP OfficeJet Pro 8720 Printer Official First Look HP

HP OfficeJet Pro 8720 Printer Official First Look HP. HP Officejet Pro 8720 All-in-One - multifunction printer - color overview and full product specs on CNET., Do you have a question about the HP OfficeJet Pro 8720? Ask the question you have about the HP OfficeJet Pro 8720 here simply to other product owners. Provide a clear and comprehensive description of the problem and your question. The better your problem and question is described, the easier it is for other HP OfficeJet Pro 8720 owners to.

HP OfficeJet Pro 8720 Printer Official First Look HP. Jan 23, 2020В В· Compare With: HP OfficeJet Pro 6978. HP OfficeJet Pro 8720 Driver. The supported printer driver for this system includes HP Dropbox, HP Google Drive and Microsoft DotNet. HP OfficeJet Pro 8720 Setup. Every detail about HP OfficeJet Pro 8720 Setup is included in the manual., Do you have a question about the HP OfficeJet Pro 8720? Ask the question you have about the HP OfficeJet Pro 8720 here simply to other product owners. Provide a clear and comprehensive description of the problem and your question. The better your problem and question is described, the easier it is for other HP OfficeJet Pro 8720 owners to.

HP OfficeJet Pro 8720 Printer Official First Look HP

HP OfficeJet Pro 8720 Printer Official First Look HP. HP OfficeJet Pro 8720 All-in-One Printer Specifications . DOWNLOAD SPECS PDF. Print speed black. ISO Laser comparable, Professional Mode: Up to 24 ppm, General Office Mode: Up to 37 ppm (manual-off), 6.70 watts (standby), 1.30 watts (sleep) [3] Power measurements are based on ENERGY STARВ® OM test procedure with 230 VAC, 50 Hz input. Sep 16, 2016В В· www.hp.com/go/officejetpro - HP OfficeJet Pro 8720 innovative new design delivers lightning fast two-sided printing that helps save time and money. Easily pr....

Sep 16, 2016В В· www.hp.com/go/officejetpro - HP OfficeJet Pro 8720 innovative new design delivers lightning fast two-sided printing that helps save time and money. Easily pr... Jan 23, 2020В В· Compare With: HP OfficeJet Pro 6978. HP OfficeJet Pro 8720 Driver. The supported printer driver for this system includes HP Dropbox, HP Google Drive and Microsoft DotNet. HP OfficeJet Pro 8720 Setup. Every detail about HP OfficeJet Pro 8720 Setup is included in the manual.

Do you have a question about the HP OfficeJet Pro 8720? Ask the question you have about the HP OfficeJet Pro 8720 here simply to other product owners. Provide a clear and comprehensive description of the problem and your question. The better your problem and question is described, the easier it is for other HP OfficeJet Pro 8720 owners to HP OfficeJet Pro 8720 All-in-One Printer Specifications . DOWNLOAD SPECS PDF. Print speed black. ISO Laser comparable, Professional Mode: Up to 24 ppm, General Office Mode: Up to 37 ppm (manual-off), 6.70 watts (standby), 1.30 watts (sleep) [3] Power measurements are based on ENERGY STARВ® OM test procedure with 230 VAC, 50 Hz input.

HP OfficeJet Pro 8028 manual download, user guides. Operating instructions, installation, set up, Wi-Fi wireless connection, how to print and scan, troubleshooting. GuidesManuals. Guides & Manuals. HP OfficeJet Pro 8028 printer manual [Free Download / PDF] HP OfficeJet Pro 8028 manual download, user guide. Help, instructions, installation Sep 16, 2016В В· www.hp.com/go/officejetpro - HP OfficeJet Pro 8720 innovative new design delivers lightning fast two-sided printing that helps save time and money. Easily pr...

HP OfficeJet Pro 8720 All-in-One Printer Specifications . DOWNLOAD SPECS PDF. Print speed black. ISO Laser comparable, Professional Mode: Up to 24 ppm, General Office Mode: Up to 37 ppm (manual-off), 6.70 watts (standby), 1.30 watts (sleep) [3] Power measurements are based on ENERGY STARВ® OM test procedure with 230 VAC, 50 Hz input. Sep 16, 2016В В· www.hp.com/go/officejetpro - HP OfficeJet Pro 8720 innovative new design delivers lightning fast two-sided printing that helps save time and money. Easily pr...

Sep 16, 2016В В· www.hp.com/go/officejetpro - HP OfficeJet Pro 8720 innovative new design delivers lightning fast two-sided printing that helps save time and money. Easily pr... Sep 16, 2016В В· www.hp.com/go/officejetpro - HP OfficeJet Pro 8720 innovative new design delivers lightning fast two-sided printing that helps save time and money. Easily pr...

HP OfficeJet Pro 8720 Printer Official First Look HP

HP OfficeJet Pro 8720 Printer Official First Look HP. HP Officejet Pro 8720 All-in-One - multifunction printer - color overview and full product specs on CNET., HP OfficeJet Pro 8028 manual download, user guides. Operating instructions, installation, set up, Wi-Fi wireless connection, how to print and scan, troubleshooting. GuidesManuals. Guides & Manuals. HP OfficeJet Pro 8028 printer manual [Free Download / PDF] HP OfficeJet Pro 8028 manual download, user guide. Help, instructions, installation.

HP OfficeJet Pro 8720 Printer Official First Look HP

HP OfficeJet Pro 8720 Printer Official First Look HP. Do you have a question about the HP OfficeJet Pro 8720? Ask the question you have about the HP OfficeJet Pro 8720 here simply to other product owners. Provide a clear and comprehensive description of the problem and your question. The better your problem and question is described, the easier it is for other HP OfficeJet Pro 8720 owners to, Do you have a question about the HP OfficeJet Pro 8720? Ask the question you have about the HP OfficeJet Pro 8720 here simply to other product owners. Provide a clear and comprehensive description of the problem and your question. The better your problem and question is described, the easier it is for other HP OfficeJet Pro 8720 owners to.

HP OfficeJet Pro 8720 All-in-One Printer Specifications . DOWNLOAD SPECS PDF. Print speed black. ISO Laser comparable, Professional Mode: Up to 24 ppm, General Office Mode: Up to 37 ppm (manual-off), 6.70 watts (standby), 1.30 watts (sleep) [3] Power measurements are based on ENERGY STARВ® OM test procedure with 230 VAC, 50 Hz input. HP OfficeJet Pro 8720 All-in-One Printer Specifications . DOWNLOAD SPECS PDF. Print speed black. ISO Laser comparable, Professional Mode: Up to 24 ppm, General Office Mode: Up to 37 ppm (manual-off), 6.70 watts (standby), 1.30 watts (sleep) [3] Power measurements are based on ENERGY STARВ® OM test procedure with 230 VAC, 50 Hz input.

HP Officejet Pro 8720 All-in-One - multifunction printer - color overview and full product specs on CNET. Sep 16, 2016В В· www.hp.com/go/officejetpro - HP OfficeJet Pro 8720 innovative new design delivers lightning fast two-sided printing that helps save time and money. Easily pr...

HP OfficeJet Pro 8720 All-in-One Printer Specifications . DOWNLOAD SPECS PDF. Print speed black. ISO Laser comparable, Professional Mode: Up to 24 ppm, General Office Mode: Up to 37 ppm (manual-off), 6.70 watts (standby), 1.30 watts (sleep) [3] Power measurements are based on ENERGY STARВ® OM test procedure with 230 VAC, 50 Hz input. Jan 23, 2020В В· Compare With: HP OfficeJet Pro 6978. HP OfficeJet Pro 8720 Driver. The supported printer driver for this system includes HP Dropbox, HP Google Drive and Microsoft DotNet. HP OfficeJet Pro 8720 Setup. Every detail about HP OfficeJet Pro 8720 Setup is included in the manual.

Do you have a question about the HP OfficeJet Pro 8720? Ask the question you have about the HP OfficeJet Pro 8720 here simply to other product owners. Provide a clear and comprehensive description of the problem and your question. The better your problem and question is described, the easier it is for other HP OfficeJet Pro 8720 owners to Do you have a question about the HP OfficeJet Pro 8720? Ask the question you have about the HP OfficeJet Pro 8720 here simply to other product owners. Provide a clear and comprehensive description of the problem and your question. The better your problem and question is described, the easier it is for other HP OfficeJet Pro 8720 owners to

HP OfficeJet Pro 8720 All-in-One Printer Specifications . DOWNLOAD SPECS PDF. Print speed black. ISO Laser comparable, Professional Mode: Up to 24 ppm, General Office Mode: Up to 37 ppm (manual-off), 6.70 watts (standby), 1.30 watts (sleep) [3] Power measurements are based on ENERGY STARВ® OM test procedure with 230 VAC, 50 Hz input. Do you have a question about the HP OfficeJet Pro 8720? Ask the question you have about the HP OfficeJet Pro 8720 here simply to other product owners. Provide a clear and comprehensive description of the problem and your question. The better your problem and question is described, the easier it is for other HP OfficeJet Pro 8720 owners to

HP OfficeJet Pro 8028 manual download, user guides. Operating instructions, installation, set up, Wi-Fi wireless connection, how to print and scan, troubleshooting. GuidesManuals. Guides & Manuals. HP OfficeJet Pro 8028 printer manual [Free Download / PDF] HP OfficeJet Pro 8028 manual download, user guide. Help, instructions, installation Windows 10 and HP OFFICEJET PRO 8720 ALL-IN-ONE - Attempting to adjust scan profile/short-cut/preset вЂЋ01-17 Nothing like the software described in the manual. I have the most recent full HP software bundle installed. I see nothing in the HP Smart app, the HP Scan and Capture app nor the HP Print and Scan Doctor app that provides access to

HP OfficeJet Pro 8028 manual download, user guides. Operating instructions, installation, set up, Wi-Fi wireless connection, how to print and scan, troubleshooting. GuidesManuals. Guides & Manuals. HP OfficeJet Pro 8028 printer manual [Free Download / PDF] HP OfficeJet Pro 8028 manual download, user guide. Help, instructions, installation Do you have a question about the HP OfficeJet Pro 8720? Ask the question you have about the HP OfficeJet Pro 8720 here simply to other product owners. Provide a clear and comprehensive description of the problem and your question. The better your problem and question is described, the easier it is for other HP OfficeJet Pro 8720 owners to

Sep 16, 2016В В· www.hp.com/go/officejetpro - HP OfficeJet Pro 8720 innovative new design delivers lightning fast two-sided printing that helps save time and money. Easily pr... HP OfficeJet Pro 8720 All-in-One Printer Specifications . DOWNLOAD SPECS PDF. Print speed black. ISO Laser comparable, Professional Mode: Up to 24 ppm, General Office Mode: Up to 37 ppm (manual-off), 6.70 watts (standby), 1.30 watts (sleep) [3] Power measurements are based on ENERGY STARВ® OM test procedure with 230 VAC, 50 Hz input.

Jan 23, 2020В В· Compare With: HP OfficeJet Pro 6978. HP OfficeJet Pro 8720 Driver. The supported printer driver for this system includes HP Dropbox, HP Google Drive and Microsoft DotNet. HP OfficeJet Pro 8720 Setup. Every detail about HP OfficeJet Pro 8720 Setup is included in the manual. HP OfficeJet Pro 8028 manual download, user guides. Operating instructions, installation, set up, Wi-Fi wireless connection, how to print and scan, troubleshooting. GuidesManuals. Guides & Manuals. HP OfficeJet Pro 8028 printer manual [Free Download / PDF] HP OfficeJet Pro 8028 manual download, user guide. Help, instructions, installation

HP OfficeJet Pro 8720 Printer Official First Look HP

HP OfficeJet Pro 8720 Printer Official First Look HP. Do you have a question about the HP OfficeJet Pro 8720? Ask the question you have about the HP OfficeJet Pro 8720 here simply to other product owners. Provide a clear and comprehensive description of the problem and your question. The better your problem and question is described, the easier it is for other HP OfficeJet Pro 8720 owners to, Jan 23, 2020В В· Compare With: HP OfficeJet Pro 6978. HP OfficeJet Pro 8720 Driver. The supported printer driver for this system includes HP Dropbox, HP Google Drive and Microsoft DotNet. HP OfficeJet Pro 8720 Setup. Every detail about HP OfficeJet Pro 8720 Setup is included in the manual..

HP OfficeJet Pro 8720 Printer Official First Look HP

HP OfficeJet Pro 8720 Printer Official First Look HP. Jan 23, 2020В В· Compare With: HP OfficeJet Pro 6978. HP OfficeJet Pro 8720 Driver. The supported printer driver for this system includes HP Dropbox, HP Google Drive and Microsoft DotNet. HP OfficeJet Pro 8720 Setup. Every detail about HP OfficeJet Pro 8720 Setup is included in the manual. HP OfficeJet Pro 8720 All-in-One Printer Specifications . DOWNLOAD SPECS PDF. Print speed black. ISO Laser comparable, Professional Mode: Up to 24 ppm, General Office Mode: Up to 37 ppm (manual-off), 6.70 watts (standby), 1.30 watts (sleep) [3] Power measurements are based on ENERGY STARВ® OM test procedure with 230 VAC, 50 Hz input..

Sep 16, 2016В В· www.hp.com/go/officejetpro - HP OfficeJet Pro 8720 innovative new design delivers lightning fast two-sided printing that helps save time and money. Easily pr... HP OfficeJet Pro 8720 All-in-One Printer Specifications . DOWNLOAD SPECS PDF. Print speed black. ISO Laser comparable, Professional Mode: Up to 24 ppm, General Office Mode: Up to 37 ppm [5] (Manual-Off), 6.70 watts (Standby), 1.30 watts (Sleep) [3] Power measurements are based on ENERGY STARВ® OM test procedure with 230 VAC, 50 Hz input.

HP OfficeJet Pro 8720 All-in-One Printer Specifications . DOWNLOAD SPECS PDF. Print speed black. ISO Laser comparable, Professional Mode: Up to 24 ppm, General Office Mode: Up to 37 ppm [5] (Manual-Off), 6.70 watts (Standby), 1.30 watts (Sleep) [3] Power measurements are based on ENERGY STARВ® OM test procedure with 230 VAC, 50 Hz input. HP OfficeJet Pro 8028 manual download, user guides. Operating instructions, installation, set up, Wi-Fi wireless connection, how to print and scan, troubleshooting. GuidesManuals. Guides & Manuals. HP OfficeJet Pro 8028 printer manual [Free Download / PDF] HP OfficeJet Pro 8028 manual download, user guide. Help, instructions, installation

HP OfficeJet Pro 8720 All-in-One Printer Specifications . DOWNLOAD SPECS PDF. Print speed black. ISO Laser comparable, Professional Mode: Up to 24 ppm, General Office Mode: Up to 37 ppm (manual-off), 6.70 watts (standby), 1.30 watts (sleep) [3] Power measurements are based on ENERGY STARВ® OM test procedure with 230 VAC, 50 Hz input. Sep 16, 2016В В· www.hp.com/go/officejetpro - HP OfficeJet Pro 8720 innovative new design delivers lightning fast two-sided printing that helps save time and money. Easily pr...

Windows 10 and HP OFFICEJET PRO 8720 ALL-IN-ONE - Attempting to adjust scan profile/short-cut/preset вЂЋ01-17 Nothing like the software described in the manual. I have the most recent full HP software bundle installed. I see nothing in the HP Smart app, the HP Scan and Capture app nor the HP Print and Scan Doctor app that provides access to HP OfficeJet Pro 8720 All-in-One Printer Specifications . DOWNLOAD SPECS PDF. Print speed black. ISO Laser comparable, Professional Mode: Up to 24 ppm, General Office Mode: Up to 37 ppm [5] (Manual-Off), 6.70 watts (Standby), 1.30 watts (Sleep) [3] Power measurements are based on ENERGY STARВ® OM test procedure with 230 VAC, 50 Hz input.

Sep 16, 2016В В· www.hp.com/go/officejetpro - HP OfficeJet Pro 8720 innovative new design delivers lightning fast two-sided printing that helps save time and money. Easily pr... Jan 23, 2020В В· Compare With: HP OfficeJet Pro 6978. HP OfficeJet Pro 8720 Driver. The supported printer driver for this system includes HP Dropbox, HP Google Drive and Microsoft DotNet. HP OfficeJet Pro 8720 Setup. Every detail about HP OfficeJet Pro 8720 Setup is included in the manual.

Sep 16, 2016В В· www.hp.com/go/officejetpro - HP OfficeJet Pro 8720 innovative new design delivers lightning fast two-sided printing that helps save time and money. Easily pr... Windows 10 and HP OFFICEJET PRO 8720 ALL-IN-ONE - Attempting to adjust scan profile/short-cut/preset вЂЋ01-17 Nothing like the software described in the manual. I have the most recent full HP software bundle installed. I see nothing in the HP Smart app, the HP Scan and Capture app nor the HP Print and Scan Doctor app that provides access to

Windows 10 and HP OFFICEJET PRO 8720 ALL-IN-ONE - Attempting to adjust scan profile/short-cut/preset вЂЋ01-17 Nothing like the software described in the manual. I have the most recent full HP software bundle installed. I see nothing in the HP Smart app, the HP Scan and Capture app nor the HP Print and Scan Doctor app that provides access to Jan 23, 2020В В· Compare With: HP OfficeJet Pro 6978. HP OfficeJet Pro 8720 Driver. The supported printer driver for this system includes HP Dropbox, HP Google Drive and Microsoft DotNet. HP OfficeJet Pro 8720 Setup. Every detail about HP OfficeJet Pro 8720 Setup is included in the manual.

HP OfficeJet Pro 8028 manual download, user guides. Operating instructions, installation, set up, Wi-Fi wireless connection, how to print and scan, troubleshooting. GuidesManuals. Guides & Manuals. HP OfficeJet Pro 8028 printer manual [Free Download / PDF] HP OfficeJet Pro 8028 manual download, user guide. Help, instructions, installation HP OfficeJet Pro 8720 All-in-One Printer Specifications . DOWNLOAD SPECS PDF. Print speed black. ISO Laser comparable, Professional Mode: Up to 24 ppm, General Office Mode: Up to 37 ppm [5] (Manual-Off), 6.70 watts (Standby), 1.30 watts (Sleep) [3] Power measurements are based on ENERGY STARВ® OM test procedure with 230 VAC, 50 Hz input.

HP Officejet Pro 8720 All-in-One - multifunction printer - color overview and full product specs on CNET. HP OfficeJet Pro 8720 All-in-One Printer Specifications . DOWNLOAD SPECS PDF. Print speed black. ISO Laser comparable, Professional Mode: Up to 24 ppm, General Office Mode: Up to 37 ppm (manual-off), 6.70 watts (standby), 1.30 watts (sleep) [3] Power measurements are based on ENERGY STARВ® OM test procedure with 230 VAC, 50 Hz input.

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