Start with a good cleaning.

Then a new fresh ribbon and some backing paper behind your typing paper...and see if you get better print-out results.
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If the characters are cutting through the paper, then the platen has probably hardened with age.  You would need a re-rubbered platen.  Where are you located ?

Hi TTW

As Thetypewriterman says, type slugs punching holes in the ribbon is a sure sign of a rock hard platen. I bought a 1936 Imperial Good Companion S/N AL-018 several years ago which had the same issues. Although I had given the unit a thorough deep cleaning, servicing and tune-up, the ribbon was still being cut by the type slugs. Other issues were the paper not tracking true, the type bars making a sharp clack as they hit the platen and my fingers getting jarred at the end of each keystroke.

Living here in Canada, I was able to send the platen to J.J. Short in New York state to have it re-covered with new rubber a few years ago. The difference a renewed platen made was incredible. The paper tracks true, print quality has improved, the type bars now make a dull thud when they hit the platen and I'm sure that I can feel the softness of the new platen through the keys as I type.

I don't know of any rubber specialty companies in Scandinavia that would be able to re-cover typewriter platens, but who knows, someone might. Shipping to North America and back would be expensive no matter how you slice it. Hopefully this will give you a few ideas to work with. All the best,

Sky

For platen recovery you could consider AKB Longs in the Netherlands. I asume the shipping
costs will be lower to the Netherlands than to the US.

There's one caveat, AKB Longs uses brown rubber. It seems a bit harder than the common black rubber. If my memory serves me well I have read that the brown rubber was used for making stencils back in the days. Still it is a huge improvement over a rock hard platen. It is just not as soft as you might expect. 

Here is my "fix" for hard platens in my collection.

I just use a sheet of this Avery product as a backing sheet to my typewriter paper.

I cut the sheet to the size of my typing paper on my flat-bed paper cutter.

I keep the peel & stick backer-paper on the laminating sheet and place its clear plastic side in touch with my typing paper.

In a month or so when the laminating sheet is full of typing "dimples", I just toss it and start with a new sheet.

The laminating sheet provides for a soft landing surface for the type-slugs before they contact the platen.  And it makes for quieter hits on the platen, as well.

When my local office supply does not have the Avery sheets in stock, I get them on eBay.
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