I have a question!
If you can't afford to replace serviceable parts on your {or anyone's} $12,000-$25,000 printing machine, how did you get in this business in the first place?
Would you, did you, buy a vehicle to use in your business and then NOT EXPECT to have to do repairs or service on a regular basis?
In MOST cases replacing a print head comes after running thousands of feet of print media through the machine.
Did we forget to sell it with a Profit { I know that is a dirty word to some people} involved in the transaction. That profit should also include a small percentage for overhead and maintenance on the equipment.