1) Decode improperly 2) Formed a wrong opinion of 3) Get the wrong impression 4) Get the wrong signals from 5) Have a dyslexic moment 6) Interpret erroneously 7) Interpret inaccurately 8) Interpret incorrectly 9) Interpret wrongly 10) Misconstrue 11) Misinterpret 12) Not see clearly 13) Not see properly 1) Misconstrue 2) Misinterpret 
• (v. t.) To read amiss; to misunderstand in reading. • (imp. & p. p.) of Misread
A condition that occurs when the data output of a reader does not agree with the data encoded in the bar code symbol
A condition, which occurs when the data output of a reader does not agree with the data encoded in the barcode symbol. (Usually due to poorly printed barcodes or scanner/symbol mismatch.)
Mis·read' transitive verb [ imperfect & past participle Misread ; present participle & verbal noun Misreading .] To read amiss; to misunderstand in reading. 
[v] - read or interpret wrongly 2. [v] - interpret wrongly
Misread A condition that exists when the data retrieved by the scanner or reader in the antenna is different from the corresponding data in the tag.