Okay, so I'll bite...
I only design, I do not own a printer, or laminator. I was trained to run them as a production monkey.
Now, it's true, they are not all that hard to run - but I was taught by very knowledgable trainers who
were there, day in and day out showing how to use them, maintain them and tips on how to be more
efficient. I have worked at sign shops and in-house. What you are doing is easy - once you learn how to do it, and you can remember how to do it if a certain time has passed
I think you are getting some push back (besides the fact that under the terms of participation, you
technically are not allowed on here) is we get people coming on here all the time with no experience
even with design or software thinking they can make a go of it. If you did time to search the forum we
almost always suggest 3 things:
--- Sub it out till you get enough work to justify the cost of the equipment
--- Get a job in a sign shop
--- Hire someone to train you
The other reasons for the push back might be...
One little known fact, most sign shop owners can not run their equipment proficiently... how can they,
they have to wear so many hats.
One universal fact, it's hard to find employees who are really good at running production equipment.
Signshop owners deal with this all the time... so enough of that.
So, I'm going to pretend you are a newbie sign guy and say that if you had a guaranteed $5-7,000
of promotional graphics a year, sub it out until you do 4-5 times that. Concentrate on what you are
good at till you can justify the cost of running the machines profitably. You are not all that much different
than a newbie sign guy except you will only ever have one client. You want to bring it in-house to save
money... 7k a year in reality is nickels and dimes. I highly suggest subbing it out... not because you
intimidate me, but because I think your time might be better spent building the business to the point
where when you get to 20-35k a year in promotional graphics and then you can justify that time and
expense.
That Roland BN-20, comes with your RIP (Versaworks) you'll need various print material and one set of inks will only run you around 10-12k, and seems to fit well for your needs. I would think laminating would make them last longer, never trust manufactures durability limits. If you get a sample, test the prints to see if they hold up to cleaning solutions that your client might use, then you will know if you need a laminator. I probably would not wrap a car using that printer, if you do, laminate it!
This is obviously a rough estimate because it depends on how large your decals are, but say you get this.... you have to maintain the machine, say 15 minutes a day, thats a min of 62 hours, then print/cut/cut down your decals down to individual stickers at the rate of 1 hour a square foot - and you make 200 square feet a year. 262 total hours
262 x 30.00 total employee hour is 7860.00 a year - it does not seem to add up. Especially with the initial 10-12k expense, getting a clean, ventilated space (depending on the printer) ready for it, training and hiccups.
Good luck to you in whatever decision you make...