Solution: Empty the Recycle Bin on your desktop. You might also need to remove files from the hard disk.

Dialed fax busy

Cause: The fax number you attempted to call is busy.

Solution: Wait and try to send the fax to the number at a later time.

Disconnected

Cause: Several situations can cause the Disconnected error message to appear.

Your computer is not turned on.

Your computer is not connected to the HP All-in-One.

The HP software that came with the HP All-in-One was not installed correctly.

The HP software is installed, but it is not running.

Solution: Make sure your computer is turned on and is connected to the HP All-in- One. Also make sure you installed the software that came with the HP All-in-One.

No scan options

Cause: You did not install the software that came with the HP All-in-One, or the software is not running.

Solution: Make sure the software is installed and running. For more information, see the Setup Poster that came with the HP All-in-One.

Not supported

Cause: You tried to send a color fax from memory. The HP All-in-One does not support this procedure.

Solution: Try sending the color fax normally and not from memory.

Receiving fax machine did not answer

Cause: The receiving fax machine is not online, is turned off, is not functioning, or is not set to automatically answer incoming faxes.

For more fax troubleshooting information, see Fax troubleshooting.

Solution: Try to send the fax to the number again at a later time. If the problem persists, try to contact the owner of the fax number.

Receiving fax machine does not support color

Cause: You have tried to send a color fax to a fax machine that does not support color.

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HP J5740, J5788, J5780 Dialed fax busy, Disconnected, No scan options, Not supported, Receiving fax machine did not answer

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.