•“The "Dial Tone Detection" test failed” on page 58

•“The "Fax Line Condition" test failed” on page 59

The "Fax Hardware Test" failed.

Solution

•Turn off the HP All-in-One by using the On button located on the control panel and then unplug the power cord from the back of the HP All-in-One. After a few seconds, plug the power cord back in and turn the power on. Run the test again. If the test fails again, continue reviewing the troubleshooting information in this section.

NOTE: Depending how long the HP All-in-One is unplugged, the date and time might be erased. You might need to reset the date and time later, when you plug the power cord back in.

•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, make sure the HP All-in-One is not busy completing another task, such as making a copy. Check the display for a message indicating that the HP All-in-One is busy. If it is busy, wait until it is finished and in the idle state, before running the test.

After you resolve any problems found, run the fax test again to make sure it passes and the HP All-in-One 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. If prompted, choose your country/region, and then click Contact HP for information on calling for technical support.

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

Solution

What to do

•Check the connection between the telephone wall jack and the HP All-in-One to make sure the phone cord is secure.

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

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

Troubleshooting and support

Fax setup troubleshooting

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HP C7250, C7288 Fax Hardware Test failed, Fax Connected to Active Telephone Wall Jack test failed, Solution What to do
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C7288, C7250, C7280 specifications

The HP C7280, C7250, and C7288 are part of HP's acclaimed All-in-One (AIO) printer series that blend functionality, speed, and quality in one compact device. Designed for home and small office use, these models stand out for their versatility and advanced features, making them an essential tool in any workspace.

One of the main features of the HP C7280, C7250, and C7288 is their multifunction capability. Each model combines printing, scanning, copying, and faxing, allowing users to perform various tasks without the need for multiple devices. This effective integration saves space and enhances productivity. The printers are equipped with a user-friendly control panel, simplifying navigation through different functions.

The print quality of these models is impressive, boasting a resolution that ensures sharp text and vibrant colors. The HP Vivera ink technology used in these printers plays a crucial role in delivering high-quality prints. This ink formulation provides a broader color gamut and enhanced longevity of prints, making them suitable for both professional documents and high-quality photos.

The HP C7280, C7250, and C7288 also feature built-in wireless connectivity options. Users can print from various devices, including smartphones, tablets, and laptops, making it possible to print from anywhere within range. This wireless technology offers flexibility and convenience, eliminating the clutter of cables in the workspace. Additionally, these models support HP’s ePrint feature, which allows printing via email, enabling users to send print jobs directly to the printer from any location.

Scanning and copying are facilitated by advanced optical scanning technology, which provides clear and precise results. Users can scan documents directly to a USB drive or email, streamlining sharing and archival processes. The automatic document feeder (ADF) featured in these models enhances efficiency, particularly for multi-page documents.

Durability is another characteristic of the HP C7280, C7250, and C7288. Designed for regular use, they come with a robust build quality and are engineered to handle large volumes of printing without frequent maintenance. The energy-efficient design of these printers also contributes to a lower environmental impact, aligning with modern sustainability practices.

In summary, the HP C7280, C7250, and C7288 series All-in-One printers excel in delivering multifunctionality, impressive print quality, and innovative technology. Their wireless capabilities, combined with user-friendly features and robust performance, make them a valuable addition to any home office or small business environment.
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