10
18.
Tighten the brass setscrew on the back of the printhead pivot-arm assembly 1/6 of
a revolution counter-clockwise. This will raise the back of the printhead.
19.
Run test 7 again with a new disc.
20.
Look at the printed disc for the same characteristics as in step 9. If the print still
needs improvement, make another adjustment. If the image gets worse, and then
go the other direction by loosening the back brass setscrew first, then tighten the
front brass setscrew. Make small adjustments and test after each adjustment.
21.
Once the optimum print is acquired, snug the front or rear brass setscrew. Do not
over tighten these screws.
22.
Turn in the acorn screws so they are about to touch the aluminum block.
23.
Make sure the acorn screws do not prevent the printhead bracket from pivoting
freely as shown in the following figure.
24.
Install the printhead cover.
25.
Replace the take-up roller to its original location.
