HP 7645 manual Fix ink smears on printouts, Click Test, To automatically clean the print head

Models: 7645

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d.Click Test Page.

e.Click the Print Test Page button, and follow the on-screen instructions.

Check the test page for jagged lines in the text or streaks in the text and colored boxes. If you are seeing jagged lines, or streaks, or no ink in portions of the boxes, then automatically clean the cartridges.

6.If the diagnostic page shows steaks or missing portions of the text or colored boxes, clean the print cartridges automatically.

To automatically clean the print head

a.Load Letter or A4 plain, white paper in the paper tray.

b.Open HP Utility.

NOTE: HP Utility is located in the Hewlett-Packardfolder in the Applications folder at the top level of the hard disk.

c.Select the HP ENVY 7640 series from the list of devices at the left of the window.

d.Click Clean Printheads.

e.Click Clean, and follow the on-screen instructions.

CAUTION: Clean the print head only when necessary. Unnecessary cleaning wastes ink and shortens the life of the print head.

NOTE: If print quality still seems poor after you complete cleaning, try aligning the printer. If print quality problems persist after cleaning and aligning, contact HP support.

f.Click All Settings to return to the Information and Support pane.

Fix ink smears on printouts

If a printout shows smears of ink, for subsequent prints, try using the Clean Ink Smear function from the printer display. This process takes several minutes to complete. Full-size plain paper needs to be loaded and will be moved back and forth during the cleaning. Mechanical noises are normal at this time.

1.Load Letter or A4 unused plain white paper into the input tray.

2.From the printer control panel display, touch Setup.

3.Touch Printer Maintenance, select the desired option, and then follow the on-screen instructions.

NOTE: You can also do the same from the HP printer software or embedded web server (EWS). To

access the software or EWS, see Open the HP printer software (Windows) on page 17 or Open the embedded Web server on page 91.

108 Chapter 9 Solve a problem

ENWW

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HP 7645 manual Fix ink smears on printouts, Click Test, To automatically clean the print head, Click Clean Printheads

7645 specifications

The HP 7640 and 7645 are part of HP's formidable line of wide-format printers designed for businesses that require high-quality printing for posters, brochures, and technical documents. Built with reliability and efficiency in mind, these printers offer advanced features and technologies that cater to diverse printing needs.

One of the standout features of the HP 7640 and 7645 is their exceptional print quality. These printers utilize HP's thermal inkjet technology, which ensures crisp, clear results with vibrant colors and sharp text. The printers support a wide color gamut and are capable of producing high-resolution prints, making them ideal for graphic-intensive applications. The versatile media handling allows users to print on various substrates, from plain paper to glossy photo paper and even heavyweight posters.

Both models support wide-format printing, with maximum print sizes up to 44 inches wide. This makes them perfect for businesses in industries such as architecture, engineering, and advertising. The HP 7640 and 7645 can print on sheets or rolls, providing users with the flexibility to handle large print jobs efficiently.

Another significant feature is the HP Smart App integration, which allows users to print and manage their printing tasks through smartphones and tablets. This capability enhances productivity, enabling users to take control of their printing needs remotely. Additionally, both printers come with intuitive touch-screen interfaces that simplify operation and provide real-time insights into printer status and supplies.

In terms of connectivity, the HP 7640 and 7645 boast versatile options, including USB, Ethernet, and wireless connectivity. This makes it easy to integrate the printers into existing office networks, enabling multiple users to access the printer from various devices. Cloud printing support further enhances operational convenience, allowing users to print documents from their preferred applications without the need for intermediate downloads.

The construction of the HP 7640 and 7645 emphasizes durability and low maintenance. With features designed to minimize downtime, these printers are engineered for consistent performance, making them suitable for high-demand environments. Their environmentally friendly design, including energy-efficient operating modes and recyclable cartridges, aligns with modern sustainability practices.

In summary, the HP 7640 and 7645 printers are packed with cutting-edge technology and practical features that meet the diverse demands of today’s business landscape. With superior print quality, wide-format capabilities, and user-friendly technology, they provide a reliable solution for high-quality printing requirements.