[GreenKeys] Faulty memory?

[John, W9DDD]

As I'm installing the first new roll of paper,  (the aged gray pinkish 
stuff left in the printers has so far been enough for testing) I'm 
thinking there used to be a metal disk you had to remove to put it on a 
15 or 28 spindle.  Am I remembering wrong? This might have been a AP/UPI 
thing since working at the TV station tended to keep me in paper supply.

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The above comments or recommendations are SWAG. Use at your own risk.
John, W9DDD