Path: utzoo!mnetor!uunet!husc6!cmcl2!brl-adm!umd5!ames!pasteur!ucbvax!cbosgd!ihnp4!ihlpf!gmark
From: gmark@ihlpf.ATT.COM (Stewart)
Newsgroups: comp.sys.m6809
Subject: Re: A fuzzy DMP-110 problem
Message-ID: <3338@ihlpf.ATT.COM>
Date: 12 Jan 88 16:40:14 GMT
References: <613@ndsuvax.UUCP>
Organization: AT&T Bell Laboratories - Naperville, Illinois
Lines: 29
Summary: Possible fix, at least some help...

In article <613@ndsuvax.UUCP>, nujohnso@ndsuvax.UUCP (C. E. Johnson) writes:
> ---------------------------------------------------------------------------
> Do any of you Color Computer owners have a DMP-110 printer?  If so, do you
> find that the print is rather fuzzy?  How can I fix this?         
> 
> I have tried many things, like a new ribbon, squirting alcohol into the pins,
> but not much improvement results.  It seems that after about 20 or so pages
> it's back to being fuzzy.  

Well, yes I do have a COCO with a DMP-110, that, incidentally, I am fooling
with a lot currently, trying to get it to work with my 3B1 tools.  I have
found that the print tends to get fuzzy because 1) with all its good points,
the DMP-110 doesn't have the best print in the world, BUT 2) it gets much
better if the head is adjusted (small lever on the left side of the carriage
mechanism -- looks like a "# copies" adjustment) and 3) you make sure you
have good quality paper.  This last thing REALLY makes a difference.  For
instance, if the paper tends to be rough, cheap (irregular surfaces tend
to make the ink bleed just a bit, making it REALLY fuzzy, even for very
small differences in paper quality), or wrinkled (the "flutter" or bouncing
against the platen as the pins strike the paper also tends to spread out the
ink and "flap" or "flutter" the ribbon against surrounding paper), you'll
see the blurriness.  Another help is to make sure the paper is feeding
straight and the rollers holding the paper down are not positioned at
the extreme edges of the paper -- move them toward the center a bit.


				G. Mark Stewart
				ixlpq!gms ATT-BTL, Naperville
				(312)979-0914