Would just like to check with everyone here if they had experienced delay in reading bar codes when using an imager to scan on dark backgrounds such as navy blue or dark green boxes?
Previously we used a normal 1D scanner and it worked fine.
Now the ironic part is that, we had try scanning bar codes (printed in black) with red back grounds and it worked fine.Has this got anything to do with the red light emitted causing a distortion of color interpretation to the scanner?
In otherwords the red light in the scanner reading dark backgrounds as black, causing delay in reading the bar code?
Thanks for any input available.
Why don't you try this http://sede.aecoc.es/web/pantone.nsf/CALCULATION?OpenForm&Query=6-66_83.3;29.3 tool that Severino shared with our Community?
Since this web site is in Spanish he kindly explained how it works at this http://community.psion.com/blog/b/weblog/archive/2010/05/05/little-tricks-to-rare-cases.aspx post.
Hope this helps.
The info in two links is very useful as well for developers.
I have also looked through some articles online and i guess the rule of time is to have high contrast in label stickers and the background for avoiding such issues in future.
Though, hopefully there will be advancement in technology to make the laser scanners more intelligent for future
We could not resolve the problem at end user's side because of the weakness of this imager,
anyway its too many tote boxes for customer to change labels and they probably find it easier to replace the scanners back to 1D if the problem persist.