What would cause a printer to make this error?

[Banners Signs Etc.]

About an inch and a half into the material there is a lighter colored line. I changed materials restarted etc. still persists. Any ideas?

Roland Versa-Art RS-640

 

[KMC]

looks like you may have an issue with your encoder strip try giving it a careful wipe down as per your manual, if it still happens you may need to replace it

 

[Banners Signs Etc.]

looks like you may have an issue with your encoder strip try giving it a careful wipe down as per your manual, if it still happens you may need to replace it

Thanks. I needed a push to take the damn thing apart lol.

 

[Gino]

Looks like its directly inline with that roller. Make sure nothings stuck in there or behind it.

 

[Solventinkjet]

Have you changed any parts recently? While this does look similar to an encoder issue, usually encoder issues have a diagonal or stair step pattern rather than perfectly straight lines. I would definitely clean it to rule it out but if that doesn't fix the issue, I would be interested in if it happens on all files.

 

[Banners Signs Etc.]

Looks like its directly inline with that roller. Make sure nothings stuck in there or behind it.

Is does look like a problem with that roller...nothing seems out of place though.

Have you changed any parts recently? While this does look similar to an encoder issue, usually encoder issues have a diagonal or stair step pattern rather than perfectly straight lines. I would definitely clean it to rule it out but if that doesn't fix the issue, I would be interested in if it happens on all files.

I replaced the encoder strip 6 months ago

As I was about to take it apart a rush job came in that doesn't have to use the full width, so its been back burnered. Will update.

 

[Solventinkjet]

I'm not sure if that model has an environmental match option in the menu but most Rolands do. Try running that and see what happens. It should tell you if something with the encoder is messed up.

 

[Joe House]

I'm not sure if that model has an environmental match option in the menu but most Rolands do.

EDIT: That printer doesn't have a cutter, so no environmental match is needed.

 

[Banners Signs Etc.]

Looks line the line is only associated with the black channel. Using assigned colors it would only show up on black mixes.
Pure red blue yellow and green didn't have the problem...

 

[Banners Signs Etc.]

color test only where there is K is what is looks like

Edit: I gotta run out for install will check in tomorrow.

 

[Joe House]

I'd be looking at the trailing cable. It looks like you may have a short at that point in the travel of the head that is only affecting the K channel.

 

[Cory Marcin]

Pinch roller for sure.

 

[Banners Signs Etc.]

I'd be looking at the trailing cable. It looks like you may have a short at that point in the travel of the head that is only affecting the K channel.

By trailing cable you mean one of the two connected to the K printhead? Likely where it flexes at the error point?

 

[Joe House]

Dave, By trailing cable, I mean the cables that go from the main board to the carriage board.

Cory, if it's a pinch roller problem, why does it only affect black?

 

[Banners Signs Etc.]

Dave, By trailing cable, I mean the cables that go from the main board to the carriage board.

Cory, if it's a pinch roller problem, why does it only affect black?

Update: "Fixed"
Cleaned encoder strip
I looked at the cables and outside of taking it all apart and probably breaking them, I still don't know what I'm looking for. Cut wire? Mouse chew?
Then a stroke of genius hit me. I moved the material over a half inch. =Rigged=

 

[Solventinkjet]

Update: "Fixed"
Cleaned encoder strip
I looked at the cables and outside of taking it all apart and probably breaking them, I still don't know what I'm looking for. Cut wire? Mouse chew?
Then a stroke of genius hit me. I moved the material over a half inch. =Rigged=

If it works it's fixed! Good job! Just be ready for problems later. If it is a trailing cables issue, which I am leaning towards, it will get worse as time goes by. If that's the case you will know where to start if it does become a problem.

 

[Banners Signs Etc.]

If it works it's fixed! Good job! Just be ready for problems later. If it is a trailing cables issue, which I am leaning towards, it will get worse as time goes by. If that's the case you will know where to start if it does become a problem.

I'll definitely come back to this thread and get your contact info. Do you sell them? are they hard to install?

 

[Solventinkjet]

I'll definitely come back to this thread and get your contact info. Do you sell them? are they hard to install?

I don't have those cables so you should contact a local Roland dealer. In my experience, changing trailing cables out is more tedious than hard. The main concern is not cutting the cable on the edges of the sheet metal covers.