18.007 I notice that the bottoms of letters on my ImageWriter II's printout are not showing up. How can I fix this?
Description
This article is from the Apple II Csa2 FAQ, by Jeff Hurlburt with numerous contributions by others.
18.007 I notice that the bottoms of letters on my ImageWriter II's printout are not showing up. How can I fix this?
A likely explanation is that the printhead needs to be moved in (toward
the big roller) a notch. This is a standard "Paper Thickness" adjustment on
many printers. On IW, you do it with a lever to the right of the roller.
Another possibility is that the printhead needs cleaning. Be careful what
you use to clean a printhead because some solvents can dissolve the mask which
lines up the pins. Light oils and gasoline seem to be especially bad. A fine
bristle toothbrush plus some standard detergent in warm water or a household
cleaner (like Fantastik, etc.) should remove most dust and gunk. Whatever you
use, avoid soaking the printhead in anything very long-- i.e. get it reasonably
clean and then blow/blot dry.
Changing settings on the DIP with the factory settings which "users should
leave alone" may have some effect on firing of the bottom pins. I don't know.
Probably, you would want to try everything else first.
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