97 printer paper not advancing

Hi, I've looked at the articles to repair the 97 printer gear, but my problem is that the paper is not advancing. The pinter prints fine, but the paper does not, or barely advances. Does anyone have a solution for this?




In the HP41 peripheral printer (82143A) there are two small springs in each edge of the clutch axis that ensure enough pressure is provided to pull the paper as the clutch rotates. Can you check if the HP97 also has them and, if so, if they are correctly placed?


Luiz (Brazil)

Edited: 30 June 2010, 11:01 p.m.


Hello Keith,
I can suggest my procedure for fix this problem, but you must know that will require to take apart all the printer assembly. If you aren't skill enough, I can fix your printer if you send it to me.
BTW I live in Italy! If it's not a problem for you...

Take care



Hi Ignazio,

Thanks for the offer. I did find some more postings in the archive. It appears all advance wheels are turning, but the rollers just don't grab the paper. So I will try one of the fixes I saw very carefully using sand paper to "roughen" the surface of the rollers.

Thanks again, but I think sending the calc to Italy would be a bit much for me.


I don't know the condition of your rollers, but one some of my calcs, the rollers, which should have a circumference shaped like a circle have a flat spot on them. Sandpaper helps a bit, but still produces uneven paper advance. I think you still have to rebuild the rollers.



Thanks for the posts. I followed the procedure I found in Archive 15:


Basically, I cut a narrow (about 3 mm) and long (a few inches) piece of 600 grit sandpaper. I fed it through with the grit facing the roller (grit toward the front of the calc) and pressed the paper advance as I alternately held the tail of the piece of sandpaper and released it. This way it would scrape the roller and advance alternately. It took multiple passes on each roller, but now the paper is advancing as it should!

Thanks to those who posted and thanks to the original posts in the archive - and the Museum for maintaining the archive to begin with!!

Possibly Related Threads…
Thread Author Replies Views Last Post
  PIL-box w/o IL cable = paper weight Joe Horn 15 4,447 11-26-2013, 01:05 AM
Last Post: Les Wright
  HP-97 Printer Malfunction Dan Lewis 17 4,733 11-25-2013, 10:18 AM
Last Post: Thomas Chrapkiewicz
  HP-97 Printer Troubleshooting aj04062 6 2,308 10-15-2013, 08:45 PM
Last Post: Eric Smith
  HP-97 Printer Head aj04062 1 1,037 09-11-2013, 09:18 PM
Last Post: Randy
  HP-97 Printer Head aj04062 0 824 09-10-2013, 09:19 PM
Last Post: aj04062
  HP-97 Printer parts davorin 5 1,855 08-29-2013, 02:10 AM
Last Post: Benoit Maag
  Paper on the errors in HP Calculators vs some older computer processors Les Koller 3 1,543 08-19-2013, 12:37 PM
Last Post: Mike Morrow
  HP-97 Printer Repair Adventure LHH 9 2,521 05-17-2012, 03:09 AM
Last Post: LHH
  How does the HP-97 printer paper feed work? Harald 5 2,032 03-31-2012, 09:31 AM
Last Post: Harald
  HP Printer paper... any worries? Greg Swartz 6 2,101 02-01-2012, 09:42 AM
Last Post: Greg Swartz

Forum Jump: