Make sure you purchase the right ink cartridges for your specific printer and printer region or have your old ones refilled. Cartridges are not compatible between different brands, and often not within the same brand. HP often designs its inkjet hardware to use country-specific consumables. When you unbox a new HP inkjet printer and set it up, you install a set of ink tanks that ship with the printer. As you turn on the device and get ready to use it, an initialization sequence localizes it to the country associated with the ink cartridges you installed. HP recommends that you use original HP ink cartridges.
XL (Extra Large) cartridges cost more but do provide better value in the long run. They will be able to print almost 3 times as many pages as a regular cartridge. Our advice is that if you print often, go with XL. However, ink can dry up. So if you are not a frequent printer, go with the regular cartridges.
You can check the estimated ink levels from the printer software, printer control panel or HP Smart.
To check the ink levels from the printer control panel
The ink level icons on the printer display show an estimate of ink remaining in the cartridges. The left ink icon shows the estimated ink level of the tri-color cartridge, and the right icon shows the estimated ink level of the black cartridge.
To check the ink levels from the HP printer software (Windows)
– Open the HP printer software.
– In the printer software, click the Estimated Levels tab.
Ink level warnings and indicators provide estimates for planning purposes only. When you receive a low-ink warning message, consider having a replacement cartridge available to avoid possible printing delays. You do not have to replace the cartridges until the print quality is unacceptable.
Use the single-cartridge mode to operate the HP All-in-One with only one print cartridge. The single-cartridge mode is initiated when a print cartridge is removed from the print cartridge carriage.
For your US HP DeskJet 2635 All-in-One Printer you need HP 65 Black AND HP 65 Tri-color cartridges OR the XL versions: HP 65XL Black AND HP 65XL Tri-color cartridges.
There are also multipacks available like the HP 65 Black and Tri-color Original Ink Cartridges, 2 pack.
For your European or UK HP DeskJet 2635 All-in-One Printer you need HP 304 Black AND HP 304 Tri-color cartridges OR the XL versions: HP 304XL Black AND HP 304XL Tri-color cartridges.
There are also multipacks available like the HP 3JB05AE 304 Original Ink Cartridges, Black and Tri-Colour, Pack of 2.
Try Amazon's ink selector tool to find compatible ink cartridges for your printer.
Replace the ink cartridges
3. Lower the output tray, reach inside the printer, grasp the handle, and then lower the ink cartridge access door. The carriage moves to the center of the printer. Wait until the printer is idle and silent before continuing.
7. Hold the cartridge by its sides with the nozzles toward the printer, and then insert the cartridge into its slot at a slight upward angle. Make sure that the icon on the cartridge matches the icon on the slot. The tri-color cartridge goes in the slot on the left, and the black cartridge goes in the slot on the right.
Align the cartridges
– Close the scanner lid.
– Press the Start Copy Black button or the Start Copy Color button on – the printer control panel. The printer aligns the ink cartridges.
The alignment page did not print?
If the alignment page did not print automatically, you can align the cartridges manually from the printer software.
– Open the HP printer software.
– Click Print & Scan, and then click Maintain Your Printer to access the printer toolbox.
– Click the Device Services tab, and then click Align Ink Cartridges. The printer prints an alignment sheet.
– Place the alignment page with the print side down on the scanner glass, and then position it according to the engraved guides around the glass.
– On your computer, click Scan.
– Recycle or discard the cartridge alignment sheet.