HP Deskjet 5145 Color Inkjet Printer - Manual (Page 168)

tab setting
Paper/
Quality Size is: Appropriate size
Type is:
Plain Paper
Finishing Poster Printing: 2 x 2 , 3 x 3 , 4 x 4 , or 5 x 5
Basics Orientation: Appropriate orientation
2. Select any other desired print settings , then click OK .