Chapter 12

Check to make sure the country/region setting is set appropriately for your country/region. If the country/region setting is not set or is set incorrectly, the test might fail and you might have problems sending and receiving faxes.

Make sure you connect the HP All-in-One to an analog phone line or you will not be able to send or receive faxes. To check if your phone line is digital, connect a regular analog phone to the line and listen for a dial tone. If you do not hear a normal sounding dial tone, it might be a phone line set up for digital phones. Connect the HP All-in-One to an analog phone line and try sending or receiving a fax.

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 Dial Tone Detection Test continues to fail, contact your telephone company and have them check the phone line.

I am having problems faxing over the Internet using IP phone

Cause: The fax over Internet Protocol (FoIP) service might not work properly when the HP All-in-One is sending and receiving faxes at high speed (33600 bps).

Solution: If you experience problems sending and receiving faxes while using an Internet fax service, use a slower fax speed. You can do this by changing the Fax Speed setting from Fast (the default) to Medium or Slow.

To set the fax speed from the control panel

1.Press Setup.

2.Press 5, and then press 7.

This selects Advanced Fax Setup and then selects Fax Speed.

3.Press to select one of the following settings, and then press OK.

Fax speed setting

Fast

Medium

Slow

Fax speed

v.34 (33600 baud)

v.17 (14400 baud)

v.29 (9600 baud)

Cause: The HP All-in-One is not set up properly for faxing.

Solution: You can only send and receive faxes by connecting a phone cord to the port labeled 1-LINE on the HP All-in-One and not from the Ethernet port. This means that your connection to the Internet must be done either through a converter box (which supplies regular analog phone jacks for fax connections) or your telephone company.

Cause: Your telephone company does not support faxing over the Internet.

Solution: Check with your telephone company to make sure their Internet phone service supports faxing. If they do not support faxing, you will not be able to send and receive faxes through the Internet.

220 Troubleshooting

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HP J5750, J5788 Am having problems faxing over the Internet using IP phone, To set the fax speed from the control panel

J5788, J5740, J5780, J5750 specifications

The HP J5780 is a versatile all-in-one inkjet printer that combines printing, scanning, copying, and faxing capabilities in a single device. Ideal for home and small office environments, this printer is designed to cater to a wide range of document-related needs. Its compact form factor allows it to fit easily into tight spaces without sacrificing functionality.

One of the standout features of the HP J5780 is its print quality. With a maximum resolution of up to 4800 x 1200 optimized dpi, it delivers sharp text and vibrant images, making it suitable for printing everything from documents to photos. The printer uses HP's patented Thermal Inkjet Technology, which ensures precise ink placement and excellent color accuracy.

In terms of print speed, the HP J5780 is efficient, capable of printing up to 30 pages per minute for black and white documents and around 23 pages per minute for color prints. This speed makes it particularly effective in busy office environments where time is of the essence. The device has a 100-sheet paper tray that accommodates various paper sizes and types, including envelopes, glossy photo paper, and legal-sized documents.

The scanner function offers a flatbed design with a 1200 x 2400 dpi optical resolution, enabling users to digitize documents and photos with exceptional clarity. Additionally, the HP J5780 comes with a built-in copier that allows for quick duplication of documents without needing a computer. Users can efficiently make multiple copies, adjust copy sizes, and utilize features like resizing and reduction.

Another important aspect of the HP J5780 is its faxing capability. Featuring a 33.6 Kbps modem, the printer enables quick transmission of documents and comes with a 20-page automatic document feeder (ADF), simplifying the process of sending multi-page faxes.

Connectivity options on the HP J5780 are user-friendly, offering both USB and Ethernet interfaces. This allows for easy connection to computers and networks, enabling users to share the printer within a group. Furthermore, the device is compatible with various operating systems, ensuring seamless integration into different computing environments.

In summary, the HP J5780 is a comprehensive all-in-one solution that emphasizes productivity without compromising quality. Its combination of printing, scanning, copying, and faxing functionalities, along with its user-friendly features, makes it a reliable choice for those seeking efficiency and versatility in their document management tasks. Whether for home use or small office settings, the HP J5780 delivers dependable performance and a range of technologies designed to meet diverse printing needs.