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Are you still working on this :o Does the business not already have a logo you can use to base the sign design ?

Well this is why people sell them as 'not working'. They aren't always completely honest about how long a printer has been sitting for, or just say 'it was printing fine before' Plus if they can't fit a head themselves, then the head cost plus getting a technician often makes it uneconomical...

Sometimes it can just be completely random. It can also depend on the ink colour and brand used. Some colours are a lot more prone to blocking ( white is terrible for it ! ). It can also be down to a head having a few badly blocked nozzles initially, and the owner tries repeated cleanings to...

How is your test print looking? Check your cyan damper and see if it is showing any signs of contamination from the black ink.

Often a reason for this is a problem with the USB connection to the printer. it can be down to the cable, or the actual main board. The data isn't sent to the printer all in one go, so if the signal to it drops out, then the printer sits there trying to process the next part of the job, but...

You may find you also need to set up the print cut calibration once you have done it as sometimes this can go out and need some tweaking too

There are initial manual adjustments when you fit a new head ( moving the head with the little white adjuster on the front ). This get the two heads vertically aligned with each other. From the test print this looks good as the magenta and black lines should line up with each other. But once...

If you are doing that sort of quantity of work then having a backup printer is always a good idea. If you run two you can run them both at the same time, so be a lot more productive, or use them on alternate days when you are quieter. Add a small amount to the cost of each job and it will soon...

As it is effecting more than one line, I would be looking at the captop and pump first though as its unusual for bad joints in the pipes to effect so many of them. Don't do any more cleanings or head soaks as this could damage the head

OK there should never be any air in the lines, so you need to track down how it is getting in there. It can be down to leaking o-rings at the print cartridge dock, tiny holes in the line, cracked manifolds on the dampers or the cap top is not sealing against the head properly when the head is...

Oh no what a pain! I think it may be a case of swapping boards now. If you buy one and it doesn't make a difference at least you can always sell it on again and get most of your money back

Make sure you use a UV protective lacquer though! home printer inkjet inks aren't UV stable and can fade very quickly if the model is displayed in daylight.

Wait until the board gets there. You will need to remove the cables to fit the board anyway, so do the board and the new cables all at once. You can check the transistors in the meantime though. If the transistors have blown, that would stop the head firing even if the fuses are good. If the...

I like the spray lithium grease with the long straw, is great for getting into the bearing blocks and those awkward to get to bits.

Ah great news! glad we seem to have got there in the end. Hopefully once properly greased up it will keep working fine now. At least you do know that the other parts you bought are all working, and they would have failed at some point, so it's no bad thing to replace them early and you can keep...

It's worth trying as it can cause scan motor errors even if the motor is actually ok

Its worth a try just in case the new motor is faulty, it has been known. One other thing I would try is giving the bearing blocks on the back of the print head a good lubrication. If they get sticky it could be the head is sticking in the start position and that is causing the error. The head...

Was this made that week they had the international cheese shortage?

I kind of get it with customers who don't know anything about graphics. To them a graphic is a graphic. It is more annoying when people who call themselves graphic designers don't seem to understand the difference, or that you cant blow up a 1" 72dpi image that may look fine on your phone to 6...

It could be one of the ICs that can't be replaced. These are custom made for Roland, and there isn't really an easy way to test them unfortunately. Even the Roland official technicians don't do board level work, they just replace them and see if it fixes the problem. It could even be something...