Link-OS™ Multiplatform SDK for iOS v 1.3 issue

D Daniel Quagliana 2 years 11 months ago
6 2 0

When using the newest version of the Link-OS™ Multiplatform SDK for iOS, a few developers have reported being unable to print images and/or text and receiving an “Unable to determine printer language” message.  If you encounter these errors, change the timeout on the MFi Bluetooth connection method setTimeToWaitAfterWriteInMilliseconds, from 10ms to a larger value like 30ms or higher to resolve the issue.
 
Here is an example of how to make this change:
// Establish the connection. 
connection = [[MfiBtPrinterConnection alloc] initWithSerialNumber:serialIP ];
// Change the the Time to wait after write from the default of 10ms to 30ms
        [((MfiBtPrinterConnection*)connection) setTimeToWaitAfterWriteInMilliseconds:30];

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2 Replies

K Kian 20p0q02gy33x6lu39o6xk1ayiuq6seg5,Lim

Ditto that. I'm currently facing this issue as well. Will installing the latest firmware on the printer fix this issue?

EDIT: So I answered my own question. I updated the firmware on one of the printers we have here and the issue continues to haunt us. It prints okay for a couple of pages and then the "Unable to determine printer language" error occurred. Note that I send the print commands to the printer as a single job.

J Joaquin vt9yxeuu1k1q08wiyyxonrcnf5nugeu,Flores Garcia

Hi

I have gotten with the same error message ...

@"Unable to determine printer language"

And I add your line but I continue with the error, any ideas?

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