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It could be the head, but it is unusual for only one channel not to fire, you will normally get problems with more of them. If you are getting ink to the head, then it could be the print carriage board. They can go faulty and cause problems like this as they will stop sending the signal to the...

It could be the head has a short on it somewhere. When you remove it check all around the cable slots to make sure there is no ink or anything has got into them. If you get the same result with the other head then it points to a problem with one of the boards

It is hard when you get faults that come and go. It could be something failing that works sometimes and not others. I would still check all the transistors as well just to make sure they are ok. You can get faults that happen sometimes with them but not others

Never use cleaning solution on the cables as it can eat into them and cause shorts. If you do need to clean them, just use acetone and make sure they are totally dry before fitting them back. Did you replace the cables to the same places you took them off from? if one cable is bad then you may...

Forgot to ask as well, are the other colours printing normally?

Your yellow head is getting a faulty signal not telling it when to turn off. Normally this is a blown transistor on the main board ( these control the on and off signals to the head ). The other cause could be a fault print carriage board. Sometimes it can be down to a faulty head cable, but...

I agree on your point. It amazes me how many people who run 'sign businesses' can't really do anything other than pretty basic text layout and don't really have any design skills. To me they are both part of the same business. And yes, part of our job is to look at artwork and tell the customer...

It doesn't seem to be a software problem them if that isn't fixing it. It is most likely a problem with the cutting head then, sometimes if the solenoid is failing it can miss parts of the cut as the head doesn't lower when it should, but then does for the rest of the cut. Either that or the cut...

They can vary a bit, but if its a big difference it sounds like a problem. There are a few reasons, it can be the heater control board isn't sending a signal to the heater on that side. Or the heater strip has failed. It could also be the thermistor is faulty so the printer isn't getting a...

DIY artwork is the worst. The amount of times someone sends over a low res small jpeg then says they want it printed 6 feet wide. 'But it looks ok on my computer screen, why can't you print at that size....'

I agree, it is probably time to replace the complete pinch roller assemblies. The frames can crack, but also the springs can weaken over time leading to a loss of grip. There are normally used ones for sale on Ebay. Avoid the cheap chinese copies as the quality is nowhere near as good as the...

I reckon the AI will do everything in comic sans or brush script just to mess with us and show us who is in control !

Change the tubes! Even removing the old colour ink will probably leave enough in there to tint the white ink, and its too expensive to be wassting

Needing to use white is a bit of a specialist area really. If its not the sort of thing your company do, or are likely to do, then remove it from the printer. There is no point wasting money on ink you aren't using. Yes, it is useful for people who have a use for it, but if not its a PITA with...

Good luck with that. Companies like sticker mule will just print them out 20,000 copies of the label from whatever artwork is sent, so the customer will probably end up with something unusable and not looking how they expected. Yes, they can be good but they are cheap for a reason. They won't...

It really depends how much the job is worth ( and lets bet they won't pay their invoice on time either ! ). Lots of companies are useless like this though, they outsource the design to another company, that gets sent back to one department, then sent to another to approve, then they get quotes...

That is fine when you know what the font is or can find it. I was talking about those jobs you get where you cant identify it

For the head soak, don't use a coffee filter. Clamp the drain hose and fill the capping station with cleaning fluid and that will be fine. Coffee filters could have fibres in them that get clogged in the nozzles and make it worse. The small nozzle check looks ok. You definitely need to go...

And a nozzle test like that would account for the lines in the black on the test print

That looks as though you may have something on the surface of the head. Check this and see if it has picked up something on there