HP Deskjet 3000 Printer - J310a - Manual (Page 27)

Replace the cartridges
To replace the cartridges
1. Check power.
2. Load paper.
3. Remove cartridge.
a. Open cartridge door.
Wait for print carriage to move to center of the product.
b. Press down to release cartridge, then remove it from slot.
Replace the cartridges 25
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