I got around replace the gummed-up roller on my HP97 back in ~93' with silicon fuel tubing, read/write worked great! I used the HP97 on and off for the next couple of years, and then it sat as a display piece from 96 till beginning of this year. Now, I keep getting an ERROR msg when loading a card. I can write to a card a short program, and I don't get any problems at all (ie, display goes back to normal), but the same card that had been written on can't be read! I've tried a dozen or so new cards to no avail. Battery pack is new rebuilt, and I have adapter on when write/read.
The only clue I've had is: on writing, I can hear the motor go Wrr-Wrr-Wrr-Wrr, about 4 oscillating cycles. When I read ANY card, I notice that the motor goes Wrr-Wrr-Wrr-Wrrrrrrr, spits the card out then gives me the ERROR message.
Any clue what's going on? HELP!!