Module 1: Business introduction
Lesson 1: Printers functions
Lesson 2: What is refilling?
Lesson 3: How does inkjet cartridges work?
Lesson 4: Which is the ink composition?
Lesson 5: Ink cartridges types
Lesson 6: How does the toner cartridges work?
Lesson 7: Which is the toner composition?
Lesson 8: Which are the most selled printer brands?
Lesson 9: Which are the most common cartridges?
Module 2: Accesories, tools and consumables
Module 3: Prepare your working area
Module 4: Installing the equipment
Module 5: Inkjet cartridges refilling instructions
Module 6: Toner cartridges refilling instructions
Module 7: Printers instructions
Module 8: Extra equipment you may need
Module 9: Suppliers
Module 10: Specialize in this activity
Module 11: Franchise
Module 12: Architectural aspects
Module 13: Sales
Module 14: Marketing
Module 15: Publicity
Module 16: Human resources
Module 17: Administrative formats
Module 18: Agreements
Module 19: Software
Module 20: Final evaluation
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4.
Which is the ink composition?
The printer inks
is a chemical mix very complex, which has between 7 and 14 different components,
each one with a specific purpose for a perfect operation. All kinds of ink
being in big formats like plotters or domestic use, water is always the main ingredient,
which can be between 40 and 80 % of the formula. Since this is the main component, this must be
highly purified and treated, from impurity, heavy metals and other particles that may block the
cartridge injectors. The impurity may affect the ink conductivity, which can be critical in the
optimal operation of snesor cartridges mainly.
Colors, is the second main ingredient, normally is abput 2 to 20 %
of the formula and can be 2 types either pigmented or dyied or a combination of both.
The color control in intensity and tonality will impact in the printing quality
on the paper.
Stained inks offer the advantage of shinier colors, and an extensive
selection of colors and more compatibility with all kinds of injectors since this kind
of ink does not block them.
On the other side, the pigmented ink produces excellent clear printing. Among
its disadvantages there are opaque colors and as for the cartridges a shorter
lifespan in the printing head. The ink manufacturer add cosolvents to adjust
ink viscosity, or thickness. The viscosity affects the ink flow through the printing head,
as well as the drying time on the paper.
Also we may add other chemicals to regulate the tension of the surface,
which is one of the most important physical qualities. This affects the ink flow
through the sponge as well as the uniformity of the ink dripping. The color balance,
solvents and additives is really linked to the performance of the ink quality.
Its specially important to focus on the color, both in solution and once on paper.
The specialized technician use the reflective spectroscopy to analyze de density
and clouding, chroma and saturation in the printing process. Once the team develops an ink formula
with a color and carasteristics aceptables they test the ink several times making printing tests,
drying, injector block, resistance to temperature
and others.
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