FAQ - Questions around Microaraying
Scanning

What should I do if the PerkinElmer ScanArray scanner gives the error message “Slide not recognized” when I try to scan a NEXTERION® Slide MPX?

According to the customer service of PerkinElmer, the scanner checks the upper right corner of each slide for a reflection. If there is no reflection (in this case due to the black MPX well patterning), the slide is not recognized. A quick solution is to either remove the black material from the upper right corner by scratching (2 mm x 2 mm maximum) or to place a small piece of aluminum foil in the upper right corner.
A more permanent solution would be to contact PerkinElmer's technical service to have the position of the scanner autofocus moved to an unpatterned area of the slide.