On 1 Aug 2001, at 22:56, Constant Brouerius van Nidek wrote:
>Think this is on topic. Having at least three 9 dot printers
>who are still in use and are far more cheaper to run than
>jet or laser printers I found that from two of them the
>pins or at least one of the pins gets stuck in the textile
>of the lint. With my Epson LX 86 this happens especially if
>I make a long line and with the Star ?? this happens at
>will. With the Epson I have learned to dismiss all lines but
>with the Star printer I have no easy remedy. Formerly there
>where people who serviced these kind of machines but I
>think they are all out of business.
>Does some one on the list know how to service the pin head?
>The head can be easily removed from its holder and I could
>detect the parts. But before I unscrew the magnetic had from
>the steel pens I want o have advice what to do next.
>Is it enough to flatten the pens evenly? Should they
>retract completely into its plastic front end or should they
>stick out and how far. Any help in getting the printers up
>and running without problems is appreciated.
<SNIP>
My experience with dot-matrix printers leads me to believe that
cleaning the print head, occasionally, with isopropyl alcohol and a
tissue or cotton swap works well enough. There seems to occasionally
be a build-up of dried ink which can affect performance, which is
usually easily cleaned with alcohol.
Also, my observations of pin length are that the pins should, when
retracted, not stick out beyond the print head. They should be flush,
or slightly retracted (~1mm, no more). It is essential that they be
all flush with each other, as well. Most of the models of printers I
have worked with have a way to adjust the pins. Frequently this
requires dismounting the head from its carriage, and gently pushing the
hammers into the right possition, so that the pins are evenly aligned
again.
Hope this helps,
Anthony J. Albert
==============================================================
Anthony J. Albert [EMAIL PROTECTED]
Systems and Software Support Specialist Postmaster
Computer Services - University of Maine, Presque Isle
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