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If things start walking, tends to be tension more than rollers. Most shops tend to use standard widths as well, so you don't move them that often. Set rollers so most or all are within marks for your most commonly used media and move as needed in special cases.

As long as the rollers are on the grit area as designated by the marks, you should be fine.

Yup, that'd do it as well.

A nice large white patch behind the cut marks goes a long way, but I typically generate cut files outside Rasterlink. Easy workaround is plop down a white sticker as it's printing on the 4 corners (pause print for safety) in each corner for good contrast, so the marks read better. Also, a...

This thread was last updated in 2014, so probably not.

Most I run into are rebuilds. Manifolds and gaskets are cheap, so a typical rebuild would be a cheap job to do, and the DX4s are dinosaurs at this point (unless you're Roland). Lots of machines coming up for scrapping, so pulls are pretty common. I just grab new ones from Digiprint for $400-ish...

Also a suitable part number, the head went through a few versions.

I think that is current, will have to check later today.

Bearings would likely be my guess, the idler and drive pulleys both use 2 bearings. If one is dragging a lot more than the other, it will cause the belt to 'walk' towards the edge of the pulley and wear out. The pulleys are available, but they are stupid expensive (hundreds of dollars each). As...

Brushes wear out, and carriage motors regularly encounter some crazy high forces. Sometimes just swapping the belt and doing a proper cleaning and retensioning of the system will also help. If you feel daring, servicing the motor and changing bearings also go a long way. If you can, spring for...

Same head as a UCJV300 https://us.digiprint-supplies.com/en/mimaki-gen5-maintenance-head-u-assy-m020236 That said, can be connection issue, or possibly slider board. Hard to tell just by guessing though. Sounds like a tech might be in order.

EPL boards need to flashed with a generic firmware before swapping them into a different machine type, looks like you have 2 different versions going on as well. Best bet is just finding a compatible board in the first place and hope you have backed up parameters to load after the swap.

What firmware version are you on?

Thanks for following up, thread might be useful to others in the future. =)

Only other thing might be the board driving the heads.

Sounds like a bad head, replaced everything around it and no luck. I think those are DX4 heads, so at least they're relatively cheap.

The fiber link cable can go bad, but you get some very specific codes when that happens, the slider board mostly uses the fiber link and power and some signal wire (sort of like Cat 5 ethernet wire, not many conductors) as opposed to a big flat flex cable. The encoder strip is what I usually see...

Not sure what's up with the random DM to call you but at least buy a guy a drink first.

I just use Notepad++

I think those settings are in the datastream generated by RasterLink. By 'set' do you mean a lamp unit, or a zone on the lamp units? Since there is control by zone on the LED assemblies. I have gone through and annotated thousands of parameters so I could disable ink chips and I do recall some...