Re: HP 97 restoration Message #2 Posted by Randy on 10 Feb 2008, 3:35 p.m., in response to message #1 by rkellernj
The V points downward.
The paper tear off bar must be in place for it to print properly, without it, the paper path does strange things and can cause light printing at the top or bottom of the line.
Have you checked the resistance of each print head resistor? Could be a bad head or driver transistors. The overall print intensity is set by R8 which can be anything from 34 to 196k.
All the details you'd ever want are in the 97 service manual on the MoHPC disk set. If you don't own one, it's time...
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