Frontier 370 random blue lines/ on different spots on test prints and photos

[brock]

With an increasing frequency I am getting blue purple lines or hue on either photos or test prints. Not all the time but quite often. They are not sharp lines like a failing AOM unit but more like a transparent blueish cast along the direction of moving paper. All paper sizes. It is randomly changing spots which tells me its not a transport issue,

If anyone experienced a similar issue please reply with your solution. my plan pf attack is to clean the frame memory, replace the AOM drivers,  if all fails will replace the laser. Please see attachments for the affected photos. Thank you in advance

Edited July 29 by brock

[TECNOR]

If changing AOM blue continue your issue then probably laser head blue is damaged