HP CM1312 MFP Series - Manual (Page 190)

5. Remove the orange, plastic shield from the bottom of the new print cartridge.
CAUTION: Do not touch the imaging drum on the bottom of the print cartridge. Fingerprints on
the imaging drum can cause print-quality problems.
6. Insert the new print cartridge into the product.
7. Pull the tab on the left side of the print cartridge straight up to completely remove the sealing tape.
Discard the sealing tape.
178 Chapter 14 Manage and maintain the product ENWW