Chapter 12

Solution: 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.

Cause: The HP All-in-One shares the same phone line with a DSL service and the DSL modem might not be properly grounded.

Solution: If the DSL modem is not properly grounded, it can create noise on the phone line. Phone lines with poor sound quality (noise) can cause faxing problems. You can check the sound quality of the phone line by plugging a phone into the telephone wall jack and listening for static or other noise.

If you hear noise

1.Turn off your DSL modem and completely remove power for at least 15 minutes.

2.Turn the DSL modem back on.

3.Listen to the dial tone again. If the dial tone sounds clear (no noise or static), try sending or receiving a fax.

NOTE: You might notice static on the phone line again in the future. If the HP All- in-One stops sending and receiving faxes, repeat this process.

If the phone line is still noisy, contact your phone company. For information on turning your DSL modem off, contact your DSL provider for support.

Cause: You are faxing over the Internet using an IP phone, and there was a problem with the transmission.

Solution: Try resending your fax at a later time. Also, make sure your Internet service provider supports faxing over the Internet.

If the problem persists, contact your Internet service provider.

The HP All-in-One cannot send faxes, but can receive faxes

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

Solution: Follow the instructions to set up the HP All-in-One properly for faxing, based on the equipment and services you have on the same phone line as the HP All- in-One. Then, run a fax test to check the status of the HP All-in-One and to make sure you set it up properly. For more information, see Set up the HP All-in-One for faxing.

176 Troubleshooting

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HP J5750, J5788, J5780, J5740 manual If you hear noise, HP All-in-One cannot send faxes, but can receive faxes

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.