HI, in most cases, this will be a strong indicator of a failed optics assembly. you can confirm by inserting a cleaning disk. if the cleaning process dose not produce positive results, this will confirm optics failure, and the assembly must be replaced in order to restore proper functions.
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HI, in most cases, this will be a strong indicator of a failed optics assembly. you can confirm by inserting a cleaning disk. if the cleaning process dose not produce positive results, this will confirm optics failure, and the assembly must be replaced in order to restore proper functions.