HP Color LaserJet Enterprise Flow M776z All-In-One Laser Printer - Manual (Page 223)

Figure 9-5 Technique for flexing the paper stack
1 2
1 2
A4
A3
2. Use only paper that meets HP specifications for this printer.
3. Verify that the humidity in the room is within specifications for this printer, and that paper is being stored in
unopened packages. Most reams of paper are sold in moisture-proof wrapping to keep paper dry.
In high-humidity environments, paper at the top of the stack in the tray can absorb moisture, and it might
have a wavy or uneven appearance. If this happens, remove the top 5 to 10 sheets of paper from the stack.
In low-humidity environments, excess static electricity can cause sheets of paper to stick together. If this
happens, remove the paper from the tray and flex the stack as described above.
4. Use paper that is not wrinkled, folded, or damaged. If necessary, use paper from a different package.
ENWW Printer does not pick up paper or misfeeds 209