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For simple instructions for common solutions go here to the HP Photosmart C4780 All-In-One Printer Troubleshooting Guide.
The Photosmart C4780 All-in-One printer is a relatively compact printer, weighing in at just over 10 lbs. The modern design integrates a mixture of matte and glossy blacks on the casing with HP logos on the outside of the paper tray and scanner lid. This printer supports Print, Copy and Scan functionality.
Like many low cost printers, this printer became popular when Apple ran a deal for college students where you could get this printer for free with the pruchase of a MacBook Pro in 2009.
- 1.45" TouchSmart LCD
- Holds up to 80-100 sheets of paper
- PC/Mac support
- Connectivity: Wi-Fi, USB 2.0
- Direct memory card scanning
- Memory card compatibility: SD, XC, MMC and MS/DUO
- Energy Star qualified
This printer uses HP 60/60XL Tri-Color ink cartridges.
Like any Tri-Color cartridge printer, there are instances where you will find your color cartridge is deemed "empty" because one color in the cartridge was used up first. In these scenarios, it is common to find that the cartridge still has a lot of weight by the portions of the cartridge where there is leftover ink.
The best way to avoid this is to print with mixed colors, so the cartridge runs out evenly (or the waste from the other colors is reduced). If you are comfortable with refilling ink cartridges it may be possible to refill the one color that ran out and not wasting the whole ink cartridge.