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82143A Thermal Printer repair
11-09-2017, 01:55 PM
Post: #8
RE: 82143A Thermal Printer repair
Outcome: There was some black stuff on the guide bars and the positioning screw. There wasn't much, but it was dry and "un-slippery". Apparently, the residue increased the coefficient of friction as the printer got cooler. I cleaned this off with alcohol (actually hand sanitizer since I couldn't find the alcohol last night). When that had flashed off, I applied dry teflon lube to the moving parts. I also noticed that the bearing on the optical encoder side of the screw was out of position so corrected that as well. And, I didn't have any parts left over when done!

It works! I think the print speed increased after cleaning. Now I have to see if it works better after it gets moved to a cooler location.

Steve
In order of appearance: HP 41CV, CMT-MCGPS, HP 41CX, DM 41, DM 42
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Messages In This Thread
82143A Thermal Printer repair - 4ster - 11-08-2017, 03:39 PM
RE: 82143A Thermal Printer repair - 4ster - 11-09-2017, 01:00 AM
RE: 82143A Thermal Printer repair - 4ster - 11-09-2017, 04:35 AM
RE: 82143A Thermal Printer repair - 4ster - 11-09-2017 01:55 PM
RE: 82143A Thermal Printer repair - 4ster - 11-09-2017, 03:05 PM



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