This brand-new green laser gun serves as the core green channel exposure component for Noritsu QSS3701G, QSS3801G and QSS3901G digital minilabs. It provides steady green laser output to solve typical problems including green color shift, insufficient image density, mottled prints and laser shutdown. Manufactured according to original specifications, it needs professional calibration after installation, allowing photo shops to restore consistent, high-standard photo output.