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Cyan Misting

Sign Works

Sign Works

New Member
If this is not a static issue is it definetly the print head being bad or is it possibly some type of calibration? It appears to primarily occur in the head travel direction and not the feed direction. It used to be really bad, spraying everywhere on the vinyl before and after the image, even on the printer before and after the vinyl. Thoroughly cleaned inside printer, print head ribbon cable & encoder strip which seemed to cure the problem but only temporarily apparently.
 

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dlndesign

dlndesign

New Member
Id check your bi-directional and feed calibration first. But this looks pretty bad, when was the machine serviced last? What type of printer is it?
 
Sign Works

Sign Works

New Member
Roland SP-300V, light use, eight years old, no service except for when the pump was replaced at one year old, maintence - regular head cleaning, wiper and captop replacements.


dlndesign said:
Id check your bi-directional and feed calibration first. But this looks pretty bad, when was the machine serviced last? What type of printer is it?
Click to expand...
 
Sign Works

Sign Works

New Member
Nope, only started recently. Dampers look OK, don't know about checking the head rank, guess it's time to get the tech out here to go through this thing completely, probably time for that cyan/blk print head it's needed for years.

player said:
Has it always done this?

Damper... head rank.
Click to expand...
 
P

player

New Member
That's what fixed mine...

Make sure you use Roland dampers.

My tech told me there are very fine screens that stop particles from getting into the head. He said the off shore dampers may not have the same quality screen, putting the heads at risk. For the difference in price between the cheapies and the Roland dampers I am going with Roland as he recommends, because the heads are so frigging expensive.

Have you changed a damper? If not, be careful not to crack the plastic pipe or carburetor that the damper fits over. You also want to be sure the damper has a new O ring.
 
Sign Works

Sign Works

New Member
91% Isoprophyl Alcohol on a cleaning swab, lightly ran the swab back and forth several times on both sides of the encoder strip with it in place, did not remove it to clean it.

Also, I use only Roland parts and Roland ink on my Roland printer.

I'm going to order parts Monday and give her a tune-up, dampers, captops, wipers & sponges. I'm hoping that will resolve the issue, we will see.


player said:
Also could you tell me how you cleaned the encoder strip? What cleaner did you use?
Click to expand...
 
Sign Works

Sign Works

New Member
Just realized that I never followed up on this thread. So here goes in case it might help someone else in the future.

1.) Replaced dampers and captops then performed all printhead alignments and calibrations.
Results = No change

2.) Replaced K/C printhead and performed all printhead alignments and calibrations.
Results = Printer prints like new

Got the printhead from one of our board merchants solventinkjet.com for $795
So nice to be rid of the cyan misting and no more deflected black nozzles also.:thumb:
 
Team Valhalla

Team Valhalla

New Member
Sign Works... thanks for the update and glad you got your issues resolved! Since your post in October, there's been a few others express problems with misting. Maybe this will help them.

Having a Roland also, I'm sure I'll run into this myself sooner than later. How difficult is it to replace, align, and calibrate the new head?

Thanks in advance.

SP
 
Sign Works

Sign Works

New Member
Team Valhalla said:
Sign Works... thanks for the update and glad you got your issues resolved! Since your post in October, there's been a few others express problems with misting. Maybe this will help them.

Having a Roland also, I'm sure I'll run into this myself sooner than later. How difficult is it to replace, align, and calibrate the new head?

Thanks in advance.

SP
Click to expand...

SolventInkjet.com sends you the Roland service manual which gives step by step instructions for changing the print head, they also offer free tech service, they will walk you through it if necessary.

I was willing but a bit leary to take this on myself. I was able to track down the tech that did the original delivery / set-up of my printer 8 years ago. The Roland dealer I bought my printer from went out of business 6 months after I bought my printer but somehow I managed to find this young man working in another local sign shop and willing to help with my printer at a very reasonable rate. I paid close attention and performed all the work right along side him, I am now much more familiar with my printer and confident to make these repairs on my own in the future.
 
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