HP Officejet Pro 251dw - User Guide
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... Load paper. Load Letter, A4, or Legal unused plain white paper into the main input tray. 2. Open Toolbox. After each stage, review the quality of ink. To clean the printhead from Toolbox (Windows) 1. To clean the printhead from the control panel 1. For more information... 2. If print quality still seems poor after cleaning and aligning, contact HP support. Performing the aligning and cleaning procedures unnecessarily can cause print quality problems. For more information, see Turn the printer off correctly can waste ink and shorten the life of the cartridges. Some...
... Load paper. Load Letter, A4, or Legal unused plain white paper into the main input tray. 2. Open Toolbox. After each stage, review the quality of ink. To clean the printhead from Toolbox (Windows) 1. To clean the printhead from the control panel 1. For more information... 2. If print quality still seems poor after cleaning and aligning, contact HP support. Performing the aligning and cleaning procedures unnecessarily can cause print quality problems. For more information, see Turn the printer off correctly can waste ink and shorten the life of the cartridges. Some...