Chapter 12

Solution: To find support and warranty information, go to the HP Web site at www.hp.com/support. If prompted, choose your country/region, and then click Contact HP for information on calling for technical support.

Cause: You installed new print cartridges which might need alignment.

Solution: You must align the print cartridges to ensure excellent print quality. After you insert a new print cartridge, load letter or A4 unused plain white paper into the input tray, and then press OK on the control panel. The HP All-in-One prints a print cartridge alignment sheet and aligns the print cartridges. Recycle or discard the page.

If the alignment page prints properly, showing green check marks on each line, but the alignment error persists, you can clear the message by pressing OK and Setup at the same time.

If the alignment error persists and you cannot clear it , your print cartridge might be defective. Contact HP for support.

To find support and warranty information, go to the HP Web site at www.hp.com/ support. If prompted, choose your country/region, and then click Contact HP for information on calling for technical support.

Print cartridge is missing, incorrectly installed, or not intended for your device

Cause: One or both of the print cartridges are not installed or are installed incorrectly.

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

Cause: The print cartridge is missing.

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

Cause: Protective tape is covering the print cartridges.

Solution: Check each print cartridge. The tape might have been removed from the copper-colored contacts, but still might cover the ink nozzles. If the tape is still

252 Troubleshooting

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HP J5750, J5788, J5780, J5740 manual Chapter

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.