Power Macintosh 7500/100 thinks all floppies are locked.

My new (to me) Power Macintosh 7500/100 is thinking all disks I put in it are locked. Is there a way to fix this without replacing the drive?
Thanks,
George W.
www.apple-commercials.co.cc

This is how I clean floppy drives:
1) Remove floppy drive from the computer.
2) Remove the cover.
3) Use a can of compressed air, making sure all the loose dust is gone.
4) Use cotton swabs to reach the tighter spots, making sure all dirt is cleaned out.
5) Lubricate the mechanism and springs with 3-in-1 multipurpose oil, a silicone grease or something similar. Do not use WD-40 or white lithium grease - these won't last long.
6) Reassemble the drive and install it back into the computer.
7) Use a floppy drive cleaning diskette/kit to clean the read/write heads of the drive. Although this can be done manually with rubbing alcohol on a cotton swab, it is more safe to use a cleaning diskette because you cannot damage the drive this way. If doing it manually, please be careful and don't stretch the read/write head spring too far - otherwise, the upper read/write head will never go down again.
If you follow these easy procedures, your drive should be good as new. Good luck!

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