Production inkjet technology has transformed direct mail, books and transactional printing.

By Erik Cagle

• Paper porosity. Paper porosity is a concern in the offset process, but is a larger, critical factor in inkjet printing. Excess porosity in a sheet will cause the ink to dive down and through the paper, thus allowing the print to "show through" the paper.

• Paper weight. This correlates with the graphics being printed. When printing heavy coverage (30 percent and up for inkjet), a thin sheet is not going to accommodate as much ink. The ink will dive and the user will fail to garner the necessary build required for image and color quality.