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10 Maintenance
• Installing print cartridges
• Aligning print cartridges
• Calibrating color
• Automatically cleaning print cartridges
• Manually cleaning print cartridges
• Printing a test page
• View estimated ink levels
• Removing ink from skin and clothing
• Maintaining print cartridges
• Using the HP Inkjet Toolbox
10.1 Installing print cartridges
Print cartridges
For printing most documents, use the tri-color print cartridge and the black print
cartridge. When printing photos, you can use the photo print cartridge along with
the tri-color print cartridge for grain-free photos.
Always install the tri-color print cartridge in the
left
print carriage compartment.
Install the black or photo print cartridge in the
right
print carriage compartment.
Replacing print cartridges
When buying print cartridges, look for the print cartridge selection number.
You can find the selection number in these places:
• Selection number label: Look at the label on the print cartridge that you are
replacing.
HP Deskjet 3840 series printer User's Guide
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