self-test report shows a problem, clean the print cartridges. If the problem persists, you might need to replace the print cartridges.

For more information on print cartridges, see Print cartridge troubleshooting.

Cause: The sender incorrectly loaded the originals in the sending fax machine.

Solution: Check with the sender to see if they correctly loaded the originals in the sending fax machine or accidentally sent a blank page.

Cause: The HP All-in-One picked up two sheets of paper while printing the fax.

Solution: If the HP All-in-One has only a few sheets remaining, load more paper in the input tray. If there is plenty of paper in the input tray, remove the paper, tap the stack of paper against a flat surface, and reload the paper into the input tray.

Cause: The paper loaded in the input tray is not suitable for your fax.

Solution: If the paper you are using is too fibrous, the ink applied by the HP All-in- One might not fully cover the surface of the paper. Use HP Premium Papers or any other paper type that is appropriate for the HP All-in-One.

Ink is overspraying the paper when I copy or print a photo

Cause: A small amount (a few millimeters) of overspray is common when making a copy of a photo. If there are more than a few millimeters of overspray, it might mean the HP All-in-One thinks the paper loaded is wider than it actually is.

TIP: One way to tell if ink is overspraying the paper is to check the back side of pages you print after running a copy or print job. If the back side of the page has ink streaks, the HP All-in-One might have over sprayed your previous copy or print job.

Solution: Check the paper size setting. Set the paper size to match the paper loaded in the input tray.

To set the paper size from the control panel

1.In the Copy area, press Menu repeatedly until Copy Paper Size appears.

2.Press until the appropriate paper size appears.

3.Press Start Copy Black or Start Copy Color.

Paper is not picked up from the input tray

Cause: There is not enough paper in the input tray.

Solution: If the HP All-in-One is out of paper or there are only a few sheets remaining, load more paper in the input tray. If there is paper in the input tray, remove the paper, tap the stack of paper against a flat surface, and reload the paper into the input tray. To continue your print job, press OK on the control panel of the HP All-in- One.

Print quality troubleshooting

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HP J5780, J5788 Ink is overspraying the paper when I copy or print a photo, Paper is not picked up from the input tray
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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.
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