HP LaserJet 3020 All-in-One Printer - Manual (Page 41)

● Condition: Make sure that the card stock is not wrinkled, nicked, or otherwise damaged.
● Sizes: Use card stock that is within the following size ranges only:
● Minimum: 76 by 127 mm (3 by 5 inches)
● Maximum: 216 by 356 mm (8.5 by 14 inches)
Card stock guidelines
Set margins at least 2 mm (0.08 inch) away from the edges.
ENWW Guidelines for using media 31