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• [1] As of January 2021, tests conducted by Wilhelm Imaging Research, Inc. (WIR) indicate that HP DesignJet Z9⁺ and Z9⁺ Pro Printers using HP Vivid Photo Inks have the highest Wilhelm Imaging Research (WIR) print permanence ratings in the industry, see http://www.Wilhelm-research.com/hp/WIR_HP_Z9+_Print_Permanence_Ratings_2020-02-08.pdf .
• [2] As of May 2017, tests conducted by Wilhelm Imaging Research, Inc. (WIR) indicate that documents printed with HP pigment-based inks on HP Bright White Inkjet Paper stored in the dark (assuming that the document is stored in a file folder, in a box, and is otherwise protected from possible ozone exposure and contact with water) will achieve WIR Dark Storage Permanence Ratings of “greater than 200 years.” For more information, see report at http://hp.com/go/WIR .
• [3] Based on testing commissioned by HP and performed by Sogeti in January, 2021 comparing the HP DesignJet Z9⁺ Pro 64-in Printer and comparable competitive printers that represent the majority market share worldwide as of 2020 according to IDC, by comparing the standard deviation of gloss level in GU units at 20° measurement angle (the lower, the better) printing on photo gloss paper and Best mode. HP DesignJet Z9⁺ Pro 64-in Printer with HP Premium Instant-dry Gloss Photo Paper in Best mode and Gloss Enhancer activated: 7 GU vs. Canon imagePROGRAF PRO-6100 with Canon Glossy 240g paper in Highest mode and clear coating overall: 7 GU vs. Epson SureColor-P20000 with Epson Premium Glossy 250 in Max quality mode: 24 GU. Test performed under the same conditions in all printers based on ISO/IEC 19799:2007 measuring with Glossmeter BYK micro-TRI-gloss tool. HP Gloss Enhancer can be used on photo paper with the exception of matte-finish papers. Not included, sold separately.
• [4] Performance varies based on printer and print profile. Water resistance testing by HP Image Permanence Lab on a range of HP media and follows ISO 18935 method. For more information, see http://www.HPLFMedia.com/printpermanence .
• [5] The ink cartridge HP Eco-Carton outer carton is 100% recyclable through local cardboard/paper programs. Inner materials including the ink bag are 55% recyclable and can be returned free of charge to the HP Planet Partners program for reprocessing of plastic parts. Zero landfill. For take-back of ink bag/printheads/prints, visit http://www.hp.com/recycle to see how to participate and for HP Planet Partners program availability; program may not be available in your jurisdiction.