Ricoh GEN 5 printheads - magenta lines

[wwtrade]

Hello.

I have a problem with a UV printer with Ricoh GEN 5 printheads.

Whatever I print, I also find magenta lines.

The nozzle check looks acceptable
I wiped the encoder tape.

Has anyone had this problem? and did he manage to find out what is the cause but also the solution?

 

[GC Decor]

Do you have a picture of the condition of the magenta head ??
Did you try to make adjustments to the head voltage ?? I only had to play with mine ever so slightly to correct miss fire issues.

 

[wwtrade]

Do you have a picture of the condition of the magenta head ??
Did you try to make adjustments to the head voltage ?? I only had to play with mine ever so slightly to correct miss fire issues.

 

[wwtrade]

Thanks for the reply. I have never made any voltage adjustments

 

[MelloImagingTechnologies]

Usually it's an electronic problem.
Power off printer and try reseating cables on head and board above then power up and try.
A 2nd way to diagnose is to power off, switch cables between magenta and another head then power up.
Do a nozzle print and heads will not print in the right locations but if you still have a magenta line that's firing it's a head problem.
If line changes to a different color, it's an electronic problem above the head. Could be cable, board, etc.
Bruce

 

[wwtrade]

Usually it's an electronic problem.
Power off printer and try reseating cables on head and board above then power up and try.
A 2nd way to diagnose is to power off, switch cables between magenta and another head then power up.
Do a nozzle print and heads will not print in the right locations but if you still have a magenta line that's firing it's a head problem.
If line changes to a different color, it's an electronic problem above the head. Could be cable, board, etc.
Bruce

Thanks for your time. I'll try to do what you said

 

[wwtrade]

Usually it's an electronic problem.
Power off printer and try reseating cables on head and board above then power up and try.
A 2nd way to diagnose is to power off, switch cables between magenta and another head then power up.
Do a nozzle print and heads will not print in the right locations but if you still have a magenta line that's firing it's a head problem.
If line changes to a different color, it's an electronic problem above the head. Could be cable, board, etc.
Bruce

Thank you again. I did what you said. these were the correct steps to identify the problem. it looks like the printhead has a problem