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Roland SJ-740
- Thread starter Samy98
- Start date
inkmed
New Member
Roland SJ740
Roland SJ 740 is a old printer.
But it is a good printer that is why it was popular for many years.
You can find the spare parts and ink for it, price is not high.
But, you are new in sign business, it maybe a problem.
You have to find a local printer service company to maintenance your printer, because it is used one without after service.
Good Luck.
Adam from Inkmed
Roland SJ 740 is a old printer.
But it is a good printer that is why it was popular for many years.
You can find the spare parts and ink for it, price is not high.
But, you are new in sign business, it maybe a problem.
You have to find a local printer service company to maintenance your printer, because it is used one without after service.
Good Luck.
Adam from Inkmed
Sj_740
Thank you for your response
Absolutely this printer is old but for the price $7 000.00 i guess is worth it
(I'am just guessing as i am new to this business)
As far as i know this printer uses ECO solvent ink,please advice if i am wrong
Thank you again for your help
Samy
Thank you for your response
Absolutely this printer is old but for the price $7 000.00 i guess is worth it
(I'am just guessing as i am new to this business)
As far as i know this printer uses ECO solvent ink,please advice if i am wrong
Thank you again for your help
Samy
Hello,
Witch ink are you using on this printer is it sublimation or Solvent INK
As far as i know if you use a sublimation INK (Water based) you can change it to solvent ink after flushing all the water based ink from the heads and replace it with Solvent.But if you start the printer using Solvent there is no way to use a sublimation ink (water based) unless you change all the heads pipes and pumps.
Please correct if i 'am wrong
Samy
Witch ink are you using on this printer is it sublimation or Solvent INK
As far as i know if you use a sublimation INK (Water based) you can change it to solvent ink after flushing all the water based ink from the heads and replace it with Solvent.But if you start the printer using Solvent there is no way to use a sublimation ink (water based) unless you change all the heads pipes and pumps.
Please correct if i 'am wrong
Samy
JR Digital
New Member
Its a damn good printer. I still use mine. Literally Printed hundreds of thousands of sq ft on it over the years. Just keep it clean and serviced and it won't be a problem.
inkmed
New Member
Roland SJ means solvent jet
this printer original ink is eco solvent ink.
switch water based printer to solvent printer, you need change all the parts contact ink include printer head, damper, wiper, pump...
switch solvent printer to water based printer, did not need change any part. just clear the printer out and out.
Adam from Inkmed
this printer original ink is eco solvent ink.
switch water based printer to solvent printer, you need change all the parts contact ink include printer head, damper, wiper, pump...
switch solvent printer to water based printer, did not need change any part. just clear the printer out and out.
Adam from Inkmed
artbot
New Member
i kinda disagree with the switch chemistry. i think before changing so many parts. a different regimen should be approached. yes, the ketones in the ink, if coming in contact with water, will seize up the solvent ink pigments. but why not run run pure glycol ether for a few days in the machine. glycol ether is both miscible in water and ketones (water is a solvent). this will create a chemical bridge between the two inks. glycol ethers are in both the water and solvent base inks. you just need to get the ketones out first.
Hello
To:inkmed
In my understanding is other way around
Roland sj-740 is designed to be a solvent ink and it comes dry (With out INK on It)
Now if you start the printer using Water base it's easy to change it to solvent as water based ink doesn't stuck in the pipes and print heads, you may need to flush it twice)
If you start the printer with solvent INK witch is harder to remove from the pipes and print head in this case it would be impossible to switch the ink from solvent to water based.
Please please correct me if i 'am wrong
Samy
To:inkmed
In my understanding is other way around
Roland sj-740 is designed to be a solvent ink and it comes dry (With out INK on It)
Now if you start the printer using Water base it's easy to change it to solvent as water based ink doesn't stuck in the pipes and print heads, you may need to flush it twice)
If you start the printer with solvent INK witch is harder to remove from the pipes and print head in this case it would be impossible to switch the ink from solvent to water based.
Please please correct me if i 'am wrong
Samy