hey amigos. im in the process of unclogging the heads on a epson r1800 printer. does anyone happen to have a print pattern for printing out the 8 colors on this printer? i googled it and could only find images for 4, 6, and 9 color patterns. searching this forum gave me zero results. the pattern i am looking for has a solid bar about an inch wide running the length of the paper (from top to bottom)for each color. thanks.