my invisible text
Categories
  • TIMELINE

Test Print Interpretation?

<<

User avatar

1 Star Contributor

Posts: 19

Joined: Thu May 29, 2014 10:24 pm





Post Thu Oct 13, 2016 12:27 am

Test Print Interpretation?

Just returned from vacation and found the periodic cleaning setting on one of my Rolands was set to off...oops.
I've replaced the cap tops, dampers and drawn ink through the lines and I'm still getting poor results when running a test print.
Wondering if somebody might point me in the right direction as to how to proceed from here?
The unit is a SolJet Pro2 745EX, it is a six colour, two head machine.
Thanks if you can assist!
Attachments
IMG_20161012_155443.jpg
<<

User avatar

Premium Member
Premium Member

Posts: 3218

Joined: Mon Feb 10, 2003 11:30 am

Country: United Kingdom (uk)




Post Thu Oct 13, 2016 9:05 am

Re: Test Print Interpretation?

Hi
when you replaced the capping station did you reset their height? I would use a syringe and check you are getting a seal. You may have to do a head soak to help loosen any dried ink

Kev
<<

User avatar

1 Star Contributor

Posts: 19

Joined: Thu May 29, 2014 10:24 pm





Post Thu Oct 13, 2016 1:51 pm

Re: Test Print Interpretation?

Thanks Kevin, I have to admit that I wasn't even aware the height could be adjusted, I did use a syringe and there is a good seal though.
I'll run another test this morning (we're on Canada's west coast) and see what it looks like as the heads have been soaking overnight. My big concern was to why I'm only getting a half print on the cyan.
<<

User avatar

1 Star Contributor

Posts: 19

Joined: Thu May 29, 2014 10:24 pm





Post Thu Oct 13, 2016 4:37 pm

Re: Test Print Interpretation?

Checked height and alignment and everything looks spot-on, also test prints are much improved after a good soaking overnight. Still only getting a half print on the cyan though...Have tried swapping damper line with the other cyan with no difference, pulled ink through both dampers and the head, cleaned the Y fitting on the ink lines and still only getting half cyan.
Could this be a fuse issue, and if so, where are the fuses located?
<<

User avatar

Premium Member
Premium Member

Posts: 3218

Joined: Mon Feb 10, 2003 11:30 am

Country: United Kingdom (uk)




Post Fri Oct 14, 2016 9:29 am

Re: Test Print Interpretation?

Hi
head fuse normally covers 2 heads, can you draw ink on that side with the syringe. Remove the dampers allow ink to drain back, place back on head and use syringe. I would say you may have a crack in the manifold nipple that the damper goes on to. This test may show up that as the problem
<<

User avatar

Trade Supplier
Trade Supplier

Posts: 1341

Joined: Wed May 12, 2010 5:44 pm

Country: United Kingdom (uk)




Post Fri Oct 14, 2016 1:59 pm

Re: Test Print Interpretation?

I don't think that will be a two head machine. Probably a 6, but maybe 3.

I would check the damper on channel 2. Failing that, maybe the manifold has a fracture?

Stafford
<<

User avatar

1 Star Contributor

Posts: 19

Joined: Thu May 29, 2014 10:24 pm





Post Fri Oct 14, 2016 4:21 pm

Re: Test Print Interpretation?

Thanks for the replies but things went from worse to worser I'm afraid. After installing a new manifold I ran another test print with the same results. Then, following some suggested tests on a Roland document I swapped ribbon cables with a head that I knew was fully functional to see if a defective cable may be to blame. In between speaking with a client, answering the phone and emails it appears I may have cooked the main board fuse. Looks as though in the process I had the machine powered down but not unplugged...the main board is now pulled and will be shipped out for diagnosis and possible repair.
Aaah, the many joys of self employment.
<<

User avatar

Trade Supplier
Trade Supplier

Posts: 1341

Joined: Wed May 12, 2010 5:44 pm

Country: United Kingdom (uk)




Post Fri Oct 14, 2016 4:32 pm

Re: Test Print Interpretation?

Ouch!!! Sorry to hear that. Fortunately it's one of those mistakes you only tend to make once.

I assume the fuse was not one of those user replaceable ones then?

Stafford
<<

User avatar

1 Star Contributor

Posts: 19

Joined: Thu May 29, 2014 10:24 pm





Post Fri Oct 14, 2016 4:38 pm

Re: Test Print Interpretation?

It is replaceable but definitely not by the end user.
Fortunately I've got a second Roland machine as backup.
<<

User avatar

Premium Member
Premium Member

Posts: 3218

Joined: Mon Feb 10, 2003 11:30 am

Country: United Kingdom (uk)




Post Fri Oct 14, 2016 9:48 pm

Re: Test Print Interpretation?

Hi
you can get the fuses from Roland and solder them in yourself, done a few of them over the years. One fuse runs two heads

Kev
<<

User avatar

Premium Member
Premium Member

Posts: 3218

Joined: Mon Feb 10, 2003 11:30 am

Country: United Kingdom (uk)




Post Fri Oct 14, 2016 9:50 pm

Re: Test Print Interpretation?

Stafford Cox wrote:I don't think that will be a two head machine. Probably a 6, but maybe 3.

I would check the damper on channel 2. Failing that, maybe the manifold has a fracture?

Stafford


It will be a six head machine with 3 head fuses each fuse protecting 2 heads

Kev
<<

User avatar

1 Star Contributor

Posts: 19

Joined: Thu May 29, 2014 10:24 pm





Post Tue Nov 29, 2016 9:52 pm

Re: Test Print Interpretation?

So I got the repaired head board back from macmedia.com (excellent service BTW) and finally got around to installing it.
Macmedia removed the soldered-in fuses and replaced with the newer type snap-in fuse holders and fuses.
The problem head is now firing well but now the black is not printing at all and I'm stumped.
Here's what I've done thus far:
Clean all heads
Replace all dampers, caps and lines
Draw ink through heads with syringe
Test print - all good except black is not firing
Swap ribbon cables (connect yellow cables to black head) - now black fires but not yellow, tells me heads are okay
Reconnect as normal - all heads fire except black
Full cable swap between cyan and black - cyan still fires, black does not, tells me cables are okay
Open case, inspect connections to board - all good
Inspect fuses - all appear good (but I don't really know what this type of blown fuse would look like)
Test print - all still printing except black
...any suggestion?
FWIW I do have a call in to Macmedia but it will be several hours before they can reply at length.

Return to Roland Printers



Who is online

Registered users:
No registered users

 

About
Contact
Board Rules
Membership
Terms & Conditions

 

Signapp - iPhone & iPad
Signapp - Android
Vehicle Wrap Training
Vinyl Application Training
Vehicle Wrap Accreditation
UK Sign Group
Site Membership
Advertising
Videos
British Signs & Graphics Assoc.

 

Facebook
Twitter
Youtube
Linkedin
Instagram
Pinterent

 

Who is Online

In total there are 82 users online ::
2 registered, 0 hidden and 80 guests
[based on past 5 minutes]

Most users ever online was
370 on Tue Aug 28, 2018 5:02 pm

Registered users:
No registered users

Copyright © 2000 - 2019 Robert Lambie