They are ordered wholesale and also consumed in bulk.
For each order, the production costs are optimized, and the appropriate technique and type of printing is selected. Graphic designers, DTP operators and printers deal with this.They are responsible for the quality of the printout and as soon as something is wrong they are the first to be targeted by the dissatisfied boss. Their work is quite hard and I have to admit that you have to really have a fuss to do it. Work after hours, maximum focus and responsibility - definitely not work for everyone.
This means that the services they provide are at the highest level and are often ordered by owners of various types of printing devices.
Very often, the prices of their purchase have been reduced because the owners of particular stores wanted to sell a new type of accessories or increase the level of sales of goods brought by them.Of course, they try to lower the prices of those products that have a chance for the highest sales, which is why they introduce rebates on inks and toners as well as photocopying and cleaning materials. .