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There are two different ways to set up your device with your computer based on the number of phone ports on your computer. You also need additional phone cords (at least three if your computer has only one phone port and at least two if your computer has two phone ports).

Before you begin, check your computer to see if it has one or two phone ports:

Computer with one phone port

If your computer has only one phone port, you will need to purchase a parallel splitter (also called a coupler). A parallel splitter has one RJ-11 port on the front and two RJ-11 ports on the back. Do not use a two-line phone splitter, a serial splitter, or a parallel splitter which has two RJ-11 ports on the front and a plug on the back. You can purchase a parallel splitter from an electronics store that carries phone accessories.

1.Connect one end of the phone cord that came with the device to the wall jack and the other end to the 1-LINE port on the device.

2.Connect one end of a second phone cord to the 2-EXT port on the device and the other end to the front of the parallel splitter (the end with the single phone port).

3.Connect one end of a third phone cord to the back of the parallel splitter (the end with two phone ports) and the other end to the computer.

4.Connect one end of a fourth phone cord to the last open port on the parallel splitter and the other end to a telephone or answering machine. If you are connecting both a telephone and answering machine, connect the fourth phone cord to the answering machine, and then use a fifth phone cord to connect the answering machine to the telephone.

NOTE: If you do not connect your answering machine in this way, fax tones from a sending fax machine might be recorded on your answering machine, and you might not be able to receive faxes with your device.

Computer with two phone ports

If your computer has two phone ports, complete the following steps to connect the device to the computer:

1.Connect one end of the phone cord that came with the device to the wall jack and the other end to the 1-LINE port on the device.

2.Connect one end of a second phone cord to the 2-EXT port on the device and the other end to the IN port on the computer.

3.Connect one end of a third phone cord to the OUT port on the computer and the other end to a telephone or answering machine. If you are connecting both a telephone and answering machine, connect the third phone cord to the answering machine, and then connect the answering machine to the telephone.

NOTE: If you do not connect your answering machine in this way, fax tones from a sending fax machine might be recorded on your answering machine, and you might not be able to receive faxes with your device.

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HP J5780, J5788, J5740, J5730 manual English
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J5730, J5788, J5740, J5780 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.
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