Mimaki JV5 vertical banding

[r4online]

Hello everyone, we have been plagued by this issue for the past 3 months. We get this weird vertical pattern when we print solids, especially cyans and magentas. It occurs with or without heating on. Also we have found the problem occurs only when we use all 4 heads. Using any different combination of 1,2 or 3 heads seems to solve the problem but whenever we have all 4 heads working this happens. If anyone has seen this before or may have an idea of what's causing it, any feedback is welcome.

ps: We have replaced the encoder strip with no change.

Thanks!

 

[BANDH]

static? what's the humidity like in the building?

 

[ReiberGraphix]

see if your carriage is level, if your heat setting is too high and you are spraying ink at the sides of peaks and valleys it can make a heck of a difference. just a thought

 

[SARTampaBay]

static? what's the humidity like in the building?

Not intending to hijack the thread, but I've seen this from my jv3 from time to time and am interested in hearing more about your question about humidity. How would that create this? Thanks.

 

[nashvillesigns]

vertical banding

i would try a different media profile. it looks like you are not getting enough coverage. i know onyx is notorious for doing this to people. if you use onyx, you have to check the ink limits and make sure everything is calibrated with the prints using a scanner. i used to use this program and it put me through hell. i use rasterpro5 now and with the same printers between the two shops, mine prints so much better.

 

[r4online]

Well good news, we replaced the slider board and all is good now!

 

[the east coast kid]

What is a slider board & how would replacing it fix this?
I have the same problem on a brand new jv33-160

 

[tbaker]

I've seen this on a couple different machine types, from mimakis to HPs, the cause varies, from slider boards, to crap on the rails and bearings., make sure everything is clean and lubed.