Resolving barcode reader error messages
About this topic
The information in this topic applies only to the following barcode readers:
• Robot barcode readers
• Barcode readers that are installed on a device such as a platepad
The information in this topic does not apply to the Microplate Labeler.
Causes of barcode reader errors
Errors generated by robot barcode readers and barcode readers that are installed on devices are generally caused by:
• Poor printing or label placement such that the barcodes are not perpendicular to the barcode laser read line
• Poor label placement such that the barcode cannot be fully read
• Missing or damaged barcode labels
• Wrong barcode labels
Note: The system does not attempt to read a barcode unless you specified that the labware has a barcode label. See
Setting plate parameters for instructions.
Recovering from barcode reader errors
Your ability to resolve the barcode reader errors depends on whether the Halt on bar code misreads option is selected in the Options (Tools > Options) dialog box.
If the Halt on bar code misreads option is selected:
• The protocol pauses.
• The error message is recorded in the Main Log.
• The error message dialog box opens and allows you to type the correct barcode. With the correct barcode, the software continues the run.
If the Halt on bar code misreads option is not selected:
• The error message is recorded in the Main Log.
• The protocol continues without pausing, so you cannot correct from the error.
A quarantine response is set up in the Error Library for a default set of barcode reader error messages. The quarantine response allows the system to continue running the protocol even though it is unable to resolve problems with the labware. For a description of the quarantine response, see
Setting up automated responses.
Related information