HP Color LaserJet Pro MFP M476 series - Manual (Page 29)

7. Do not touch the imaging drum on the bottom of
the print cartridge. Fingerprints on the imaging
drum can cause print-quality problems.
8. Insert the new print cartridge into the product.
Match the color indicator on the cartridge to the
color indicator in the empty slot.
9. Pull the tab on the left side of the print cartridge
straight up to completely remove the sealing
tape. Recycle the sealing tape.
ENWW Replace the toner cartridges 19