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‎01-09-2026 01:09 PM

HP Recommended

We were working with Epic to use the HP scanners for the new Gallery module, but these scanners were not compatible for reading both a patient barcode and document barcode.  After Epic did some investigation this was the feedback they provided after trying multiple drivers.

The scanner is sending the variable "INT8" which is not supported by TWAIN.  According to chapter 9 of the attached TWAIN 2.5 specification pdf, the variable "INT8 "is never used as a TWAIN data type in the TW_INFO data structure. This means that the scanner is sending data in the incorrect format.

 

Though the HP driver claims to be compliant with TWAIN 2.4, the issue would remain the same (regardless of the driver being out of date).

 

We recommend that you pass this along to HP and see if they have drivers that solve this variable issue or if they have new scanners that do so as well.

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3 REPLIES 3

‎01-09-2026 02:37 PM

HP Recommended

Which model of scanner are you using?

If you find the information provided useful or solves your problems, help other users find the solution easier by marking my post as an accepted solution. Clicking "yes" on "was this reply helpful" also increases the chances that this solution will help others.
I am a volunteer, offering my knowledge to support fellow users, I do not work for HP nor speak for HP.



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‎01-09-2026 02:47 PM

HP Recommended

HP ScanJet Pro 3000 s4 

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‎01-09-2026 03:00 PM

HP Recommended

If you are an Enterprise client and have a vendor or HP rep, engage them as they can connect you with their engineering support team. 

If you find the information provided useful or solves your problems, help other users find the solution easier by marking my post as an accepted solution. Clicking "yes" on "was this reply helpful" also increases the chances that this solution will help others.
I am a volunteer, offering my knowledge to support fellow users, I do not work for HP nor speak for HP.



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