Sometime you may not get all the colours on a page.  

Press Ctrl+P to script steps 1 and 2

Please try enabling Background graphics.

  1. Inside Chrome, click on the 3 dots, top righ. 
  2. Click on Print . 
  3. Expand More Settings . 
  4. Scroll sown until you see this   
    1. Note that Headers and Footers may be unchecked, if so, leave it unchecked. 
  5. Check the box for Background graphics. 
  6. The Preview should update, then try printing.