How to Solve the Issue of Widespread Magenta Stripes on Noritsu Equipment?
Fault Symptom
Full - frame visible magenta stripes/lines appear on photos output by Noritsu photo lab equipment. Follow this troubleshooting process when the following characteristics are present:
Cause 1
Acousto - Optic Modulator (AOM) Driver Failure
Typical Characteristics: Sudden "purple rain - like" dense stripes on the print surface with no gradual progression before the fault occurs.
Repair Steps:
Confirm the faulty model: Green - channel AOM driver compatible with QSS32/33 and other models.
Replacement Verification: After replacing the driver, restart the equipment and print a test film to observe if the stripes disappear.
✦ If ineffective, immediately jump to Cause 2 for troubleshooting.
Cause 2
Green Laser Module Performance Abnormality
Technical Principle: Aging of the green light emitter in the laser module or optical path offset, leading to color superposition imbalance.
Solutions:
▶ Basic Solution: Contact us to apply for module inspection and repair or purchase a new AOM, with a repair cycle of 2 working days.
▶ Thorough Solution: Replace with a brand - new laser module (it is recommended to use the 2025 upgraded version, which has a 40% longer service life). Click to leave a message to submit your email address or WhatsApp.
Cause 3:
External Strong Electromagnetic Field Interference
Troubleshooting Process:
① Environmental Detection: Use an electromagnetic field detector to scan transformers, motors, and other equipment within 5 meters of the laboratory.
② Emergency Treatment:
QSS30/31 series: Enter the equipment menu to perform "AUTO TUNE" automatic calibration (path: System→Calibration→Green Laser);
New models (such as QSS40): Reset the B/G laser parameters in the maintenance mode (password required: NORITSU - 2023).
③ Ultimate Advice: Even if the stripes are temporarily reduced after calibration, the green laser module still needs to be replaced within 30 days to avoid fault recurrence.
Emergency Handling Guide
Avoid continuous printing during the fault and run the "empty film cleaning program" every hour to prevent toner accumulation;
Save 3 faulty sample films (including the printing date/equipment number), which need to be attached for inspection when submitting for repair;
For details, consult customer service: sales@qssfuji.com.
ebanglaser@gmail.com