Streaks on printed page

Mam, try replacing the cyan (blue) image unit may have a bad cyan image unit.

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/normanj_7893313f0751935f

What color? replace that image unit

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/normanj_7893313f0751935f

replace the image units associated with the color of the streaks

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/normanj_7893313f0751935f

Lift drum out, look down behind toner and you will see a glass lens.
Clean it with a soft cloth or tissue. Works every time.

The is blocked by dust on the side of the paper on the image unit that would have color associated with the print. Remove all the image units and clean all the laser glass. Replace those image units also if streaking as for the paper ensure correct paper side and media type.

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/normanj_7893313f0751935f

Try cleaning the laser lens using the laser lens cleaning wand. However, it is likely that your black cartridge needs to be replaced based on the troubleshooting from the Minolta manual. Sorry,

Check the glass (the one the paper rests on). The underside of the glass that is. This is what the light 'sees', so, it will print this! 

Fixed the problem with the advice of one of your members!

Thanks

pleas check transfer belt, and drum unit, probably these lines are caused by drum unit and you have to change it. also you can clean laser glass, what is under the drum unit. if both look fine you can also look at the fusing rollers.

My magicolor 2430 dl prints fine until i print a photo then it leaves vertical streaks down the page, how do I correct this and if its dirty how do i clean it.
jim