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HP97 card reader performance
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HP97 card reader performance
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HP97 card reader performance
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05-05-2021, 12:32 AM
Post: #2
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RE: HP97 card reader performance
(05-04-2021 07:56 PM)Dreato Wrote: I cleaned and rebuilt the card reader on this unit, adjusted the reed switches according to the service manual. It now reads well, but sometimes still shows 'error' after a successful read operation. Also, after the card feeds successfully and moves completely through the reader, the motor continues to operate for a second. Any ideas? It could be that the card sense chip is just "old" and might miss a bit every now and then. This will produce a checksum error. The motor continues to run briefly after an error condition. This is because of delays written into the HP microcode. cheers Tony |
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| Messages In This Thread |
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HP97 card reader performance - Dreato - 05-04-2021, 07:56 PM
RE: HP97 card reader performance - teenix - 05-05-2021 12:32 AM
RE: HP97 card reader performance - Dreato - 05-05-2021, 02:58 PM
RE: HP97 card reader performance - Dreato - 05-06-2021, 01:13 AM
RE: HP97 card reader performance - teenix - 05-06-2021, 02:52 PM
RE: HP97 card reader performance - Kees Bouw - 05-06-2021, 10:28 PM
RE: HP97 card reader performance - teenix - 05-07-2021, 12:20 AM
RE: HP97 card reader performance - Dreato - 05-07-2021, 02:02 AM
RE: HP97 card reader performance - Dreato - 05-07-2021, 02:59 AM
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