1)We use ceramic tipped pens at 21.80 for 4 pens.
From;
Pentel Canada
140-5900, 2 Road
Richmond, BC
Canada,V7C 4R9
2)I currently get my 7550 plotter disposable drafting pens from
Imaging Products
12696 Rockhaven Rd.
Chesterland, OH 4026
they may have the rollerball pens also. You could also try MR-Resources.
3)Have you tried Graphic Controls? I used them when I had a 7550 HP plotter.
Graphic Controls, Eastern Region
P.O. Box 1272
Buffalo, NY 14240
1-800-669-1535
FAX 1-800-347-2420
They have a minium order of $40. The last ones I got were $12/4pens
4)I have modified the Rollerball pens in a way that allows you to use cheap
Bic pens in them.
This is done by first removing the old rollerball cartridge and tip. Then
cut a bit from the tip of the cartridge so the length is the same. Remove
the pen portion from the Bic pen and it should insert into the cartridge.
You will need to remove a little from the ink reservoir as these ar too
long. I also used a piece of the Bic cartridge inserted in to the back of
the rollerball cartridge to hold the Bic in tighter. This has worked for
us here with two 7550 plotters for about ten years. The only drawback is
that the Bic will dry out if not used fairly frequently. You then just
have to remove and draw a little with them to get the ink flow restarted.
5) I couldn't buy them from CAD ONE...they said they didn't
have long body rollerballs anymore. The only place I have
found that supplies them is Wilmad in Buena NJ the people
that make the tubes.
6) You may consider to switch to a laser printer/plotter if possible.
HP7550 are expensive to keep. For Bruker spectrometers, it has drivers for
HP 5L etc, use a serial to parallel converter take care of the interface.
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Dr. Alex "Kitt" Kitaygorodskiy Phone: 864-656-0611
Director, NMR Facility Fax: 864-656-6613
Chemistry Department kkitayg@clemson.edu
Clemson University
Clemson, SC 29634-1905
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