Press Checks for Dummies: Part 2

26 04 2010

Here is a general guide of things to look for on a press check.  Print for your own use or give to new clients!

 

Color – verify color against the color proof and/or PMS swatch for match.  Feel free to fold the press sheet.  Be sure to look at the proof AND the press sheet under the color specific lighting of the lightbox. 

  1. As this is a 4-color build of Cyan, Magenta, Yellow, and Black (CMYK), be sure to only ask for adjustments with those colors.  Don’t ask for more “green” but ask questions that specify what you want the end result to be:  “if we add more yellow, will it make this green lighter?”
  2. Pay close attention to flesh tones- they can be tricky.
  3. Oversaturation of one color can make the rest of the sheet look muddy – be mindful of this as you check the sheet.
  4. Remember that the pressmen are not able to fix design issues, only adjust colors.

The Register

Registration –checking that the CMYK plates are all in register or in line.  Pull out your magnifying loupe (or ask to borrow the pressman’s) and check to see that all colors are lining up properly. 

A great way to verify registration is to check the circular register mark in the corner of the sheet. Also look at the edges of bold text.

Paper – Is this the paper you ordered?  Pick it up, feel it, fold it.  Keep in mind that these sheets will still have wet ink on them and the sheet may be slightly different when the ink is dried.

  1. Hold it up to the light to see if the ink has run through.
  2. Know that uncoated sheets will NOT match the color proof as the color translates differently onto coated and uncoated sheets.

Clarity – Using the magnifying loupe again, verify that the dots are sharp and clear when using a coated sheet, and reasonably clear on an uncoated sheet.  As with registration, the text is the great way to view clarity both from a distance and close up.

Magnified Ink Dots

  1.  Be sure that the ink is laying smoothly through the solid blocks of color and gradients are smooth.

  Other Details:

  1. Varnish or Coating: Look for a slight change in the gloss of the paper at the edge of the sheet to see if it has been applied
  2. Hickies:  Stray spots or irregularities in ink coverage causing small white circles.
  3.  Scumming and Ghosting: Ink or images appear in unwanted places

Above all, feel free to ask the pressman questions – this is his area of expertise and he wants this project to look good just as much as you do!

 

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