The following p_patterns are not valid for the NXT due to background conditions and/or the use of backlighting.
P_pattern: 24
Example Part: SOJ
Details：Used only with a white background. Lead tip and width detection is performed. The results are used for positioning information. Lead length is not used for positioning information with p_pattern type 34.
P_pattern: 34
Example Part: PLCC
Details：Used only with a white background. Lead tip and width detection is performed. Because the lead width direction positioning is only required for determining the positioning, only the lead width direction results are used for positioning information.
P_pattern: 3
Example Part: SOIC
Details：Used only with backlighting. Lead tip and width detection is performed. The results are used for positioning information. Lead length is not used for positioning information with p_pattern types 11 and 13.
P_pattern: 3
Example Part: SOT
Details：Used only with backlighting. Lead tip and width detection is performed. The results are used for positioning information. Lead length is not used for positioning information with p_pattern types 11 and 13.
P_pattern: 5
Example Part: PLCC Socket
Details：Used only with backlighting. The leads point towards the inside of the body. Lead tip and width detection is performed. The results are used for positioning information. 11 TAB Used only with backlighting. Because the lead tip and base are both connected to the body, only the lead width is use for positioning information.
P_pattern: 13
Example Part: QFP
Details：Used only with backlighting. Lead tip and width detection is performed. Because the lead width direction positioning is only required for determining the positioning, only the lead width direction results are used for positioning information.