intraoral camera technologymotherboard failuredigital sensor errorGendex calibration walkthroughacquisition unit performance optimizationscanner synchronization tipsDentsply Sirona Intraoral Scanner Repairequipment safety verificationdental clinic DEXIS maintenanceCMOS sensor troubleshootingEquipment Service Planxray performance supportcolor system optimizationwireless technologyiTero troubleshooting
