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imagewriter II printhead damaged by WD-40

Hi, I had a perfectly working ImageWriter II. However, the very old ribbon was not printing very dark. I regretfully followed some internet tips to revitalize the old ribbon using WD-40. This ribbon was now too wet and when used in the printer led to lots of smearing. Then I tried a new ribbon from Amazon with similar result. Figuring that the print head was dirty, I removed the printhead and tried to clean it with 70% isopropyl alcohol. After a short while, I noticed that the piece of plastic that keeps the pins aligned had floated off. I believe that the WD-40 had dissolved whatever adhesive was holding the guide in place.

Is this salvageable? So far I have not been able to get the plastic guide over the pins. And any ideas on what kind of adhsive is required?

Thanks...
Picture of print head showing the out-of-position pin guide.
1750060596188.jpg
 
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