HP 7645 manual Fax Hardware Test failed, Fax Connected to Active Telephone Wall Jack test failed

Models: 7645

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The "Fax Hardware Test" failed

Turn the printer off by pressing

(Power button) located on the printer control panel and then

unplug the power cord from the back of the printer. After a few seconds, plug the power cord in again, and then turn the power on. Run the test again. If the test fails again, continue reviewing the troubleshooting information in this section.

Try to send or receive a test fax. If you can send or receive a fax successfully, there might not be a problem.

If you are running the test from the Fax Setup Wizard (Windows) or HP Utility (OS X), make sure the printer is not busy completing another task, such as receiving a fax or making a copy. Check the display for a message indicating that the printer is busy. If it is busy, wait until it is finished and in the idle state before running the test.

Make sure you use the phone cord that came with the printer. If you do not use the supplied phone cord to connect from the telephone wall jack to the printer, you might not be able to send or receive faxes. After you plug in the phone cord that came with the printer, run the fax test again.

If you are using a phone splitter, this can cause faxing problems. (A splitter is a two-cord connector that plugs into a telephone wall jack.) Try removing the splitter and connecting the printer directly to the telephone wall jack.

After you resolve any problems found, run the fax test again to make sure it passes and the printer is ready for faxing. If the Fax Hardware Test continues to fail and you experience problems faxing, contact HP support. Go to www.hp.com/support. This website provides information and utilities that can help you correct many common printer problems. If prompted, select your country/region, and then click All HP Contacts for information on calling for technical support.

The "Fax Connected to Active Telephone Wall Jack" test failed

Check the connection between the telephone wall jack and the printer to make sure the phone cord is secure.

Make sure you use the phone cord that came with the printer. If you do not use the supplied phone cord to connect from the telephone wall jack to the printer, you might not be able to send or receive faxes. After you plug in the phone cord that came with the printer, run the fax test again.

Make sure you have correctly connected the printer to the telephone wall jack. Using the phone cord supplied in the box with the printer, connect one end to your telephone wall jack, then connect the other end to the port labeled 1-LINE on the back of the printer.

Learn more about fax setup and test, click here to go online for more information.

If you are using a phone splitter, this can cause faxing problems. (A splitter is a two-cord connector that plugs into a telephone wall jack.) Try removing the splitter and connecting the printer directly to the telephone wall jack.

Try connecting a working phone and phone cord to the telephone wall jack that you are using for the printer and check for a dial tone. If you do not hear a dial tone, contact your telephone company and have them check the line.

Try to send or receive a test fax. If you can send or receive a fax successfully, there might not be a problem.

112 Chapter 9 Solve a problem

ENWW

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HP 7645 manual Fax Hardware Test failed, Fax Connected to Active Telephone Wall Jack test failed

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.