Thank you so much. As a result of this, I've just fixed my CLP-415 printer, which appears to share many of the same internals. The foam pad hadn't moved, I think, but had certainly become compressed and thus thinner over the years, the printer having been increasingly but erratically unreliable over the last few months. I glued a short length of wooden stirrer to the actuator as a replacement, as it had a closely-matching thickness. All now seems well -- though time alone will tell! (And only one screw left over after re-assembly.)