LASEREPAIR, Noritsu Laser Repair Service

Details

Errors

Instructions

Forms

BLUE Laser noise:

Blue Laser Noise

Noise is important remark that something in the laser gun's structure has been changed badly. Usually such processes can not be turned backward. But sometime you can easily postpone repair by performing AUTOTUNING (for QSS30-31) or pressing the button RESET B/G LASER (for QSS 32-35). Note that good results which you might get after Autotuning or Laser Reset is just temporary effect. Once you may have noise never comes away. Please consider about beforehand repair of your Laser Unit. More information about the nature of the optical noise can be found HERE.

GREEN Laser Noise:

Green Laser Noise

Also remember that all Laser related electronics is very sensitive. Some of your machines are not properly grounded, and some are connected to the main which is built improperly. Old machines usually have "manual improvements" from lost screws to bulky power supplies "made on the knees". A number of electric part inside & outside of minilab could generate the electro-magnetic fields which are able to cause the low frequency noise on the prints. Aged AOM Drivers have different amplification factors. Sometimes it is enough just to swap AOM drivers to stop the noise.

Combined symptoms:

Both, Noise and Yellow Shift problems

There are many examples when the weak Blue creates a bunch of symptoms. Different combinations of shifting, noise and Error 6105 may appear unpredictably. Please note that Laser gun is going down slowly and its end of life is never stable. Output is changing sporadically and Laser Driver tunes it as long as it can. If electric current exceeds factory limit, error 6105 has appeared, if not - you can have shifting and / or noise.

You can experience the very bad results if you try to set up the minilab in such unstable condition. Below is the fragment of pattern with a multi-layered problem complicated by ultimate set up disbalance.

Noise, Yellow Shift and Disbalance