Horizontal streaks, sm102

[Andrei83]

Hello dear collegues, what are the most common causes for horizontal streaks on the printed sheet for heidelberg speedmaster sm 102?
Maybe someone have kinda cheat sheet on where to look first, second etc. for this particular press. Like "case-cause-solution"?

 

[Alois Senefelder]

Hello Andrei83,


Post a decent size picture of the problem that you see on the Printed Sheet.


Regards, Alois

 

[Andrei83]

CMYK Start printing

 

[turbotom1052]

if the image you posted is the entire sheet run in a landscape orientation then im not seeing a horizontal streak. I am however seeing a vertical streak. Please clarify.

 

[Andrei83]

White field. There's grabs. The beginning of printing. The light bar is horizontal.

 

[turbotom1052]

is the black I see just a screen of black or is it a screen build with other colors too?

 

[Andrei83]

is the black i see just a screen of black or is it a screen build with other colors too?

cmyk

 

[Alois Senefelder]

Hello Andrei83,


The white unprinted area is the "GRIP EDGE" of the sheet ?


What are CMYK - Halftone % of the build ? and why are you using CMYK for a Black Image ?


Mark on the next picture you post of the BLK (build) the - Horizontal Streaks that you see !


Regards, Alois

 

[Andrei83]

The white unprinted area is the "GRIP EDGE" of the sheet ?

Yes.

It's not a black background. This is a special dark blue color.

 

[turbotom1052]

id begin by either putting on a new blanket and raising the water a bit, or at the very least swinging the blanket around along with new packing to see if the problem area moves.

 

[Andrei83]

blanket New. Plate In the order.

 

[Alois Senefelder]

Hello Andrei ,


Does this "Streak" appear any where else in the print area ?

Regards, Alois

 

[Cornishpastythighs]

check that your roller Oscillation is at Maximum

 

[Andrei83]

Hello Andrei ,


Does this "Streak" appear any where else in the print area ?

Regards, Alois

On this plot, no.

 

[Alois Senefelder]

Hello Andrei 83,


So, this Streak appears at the same - x mm measure- from the Grip Edge on every CMYK Press Unit ?


Have you printed a sheet of individual CMKY Colours ?


Regards, Alois