Epson Stylus C60, Stylus C62, Stylus C64, Stylus C66, Stylus C68 Technical Brief

This technical brief provides detailed information on the core technologies used in Epson printers and all-in-one
printers.

Print Quality—Core Printing Technologies

The core technologies used in Epson ink jet printers work together to produce award-winning print quality, and
each component is equally important in delivering exceptional print quality.

Epson MicroPiezo® technology

Produces precise ink droplet size

and placement

High Resolution Printing

High resolution allows the printer

to produce greater detail in photos

and sharper text and line art

Epson’s core printing technologies work together to produce

brilliant Photo Quality color, sharp text, and incredible print speeds

Small Ink Droplet Size

Small ink droplets produce

smoother gradations and greater

tonal control

Epson Papers

Epson papers are designed to receive

Epson inks and offer the optimal

output quality

High Quality Halftoning

Generates fast, color-accurate

results with smooth transitions and

true photographic image quality

Epson Inks

Epson innovates ink solutions
tailored to the needs of specifi c users
instead of offering a one-size-fi ts-all

ink solution.

Detailed information on each of these core printing technologies is on the following pages.

This combination of core technologies used in Epson ink jet printers produces:

Greater detail in highlights,

without visible printed “dots”

Greater detail in shadows, with
higher optical density and contrast

Smooth gradations with

precise color control and

Better fi ll in solid areas

superior density

Crisp line art

Epson Sales Training 5/07

Crisp text

1. Epson MicroPiezo Technology: Epson Micro Piezo print heads use high-precision mechanical pumps to

Piezo Crystal
Deformation

Ink

Nozzle

Droplet

Ink

Resistor

Bubble

Nozzle

Drople

t

produce ink droplets, and no heat is involved in printing. Here’s how it compares to thermal ink jet technology,
used in other ink jet printers:

Epson MicroPiezo Technology Thermal technologies

Mechanical method:

Precise electrical pulses
cause the ink reservoir wall to
defl ect inward, projecting ink
through the nozzle.

Epson’s MicroPiezo technology results in consistent
ink droplets without satellites (unwanted ink spray)

Heat method:

Heat produces a vapor
bubble in the ink reservoir
which expands and is
ejected through the nozzle.

Some thermal printers produce more inconsistent
droplets with satellites and misting.

or misting.

2. High Print Resolution: Resolution, which is generally measured in dots
per inch (DPI) is an important factor in achieving print quality. Epson
printers are unique in combining very small, variable-size ink droplet

Effect of Print Resolution and Small,
Variable-Size Ink Droplets

sizes with high resolutions to precisely print crisp details in photos
and laser sharp text. Also, Epson’s variable ink droplet sizes and high
resolutions combine to improve color ranges and accuracy because Epson
printers can use halftone algorithms with more color combinations and
smoother color gradations.

3. Small ink droplet size: Most Epson printers produce ink droplets so small
you cannot see them with the naked eye. A smaller ink droplet allows
the printer to produce a greater number of different colored “printed
dots” because a wider range of tiny droplets can be combined to create a

Gradations and blends become
smoother as resolution and droplet
control are increased

larger color palette. Additionally, smaller ink droplets produce less visible
printed dots, especially apparent in the lightest areas of a photograph.

Epson printers use Variable Size Droplet Technology, where the printers can produce a number of different ink

droplet sizes. The size and number of droplets varies by model, but offers these benefi ts:

• Different ink droplet sizes can be combined to achieve more tone representations

• The smallest ink droplets can be used in the low-density or highlight areas, reducing the visibility of printed

“dots”

• Large ink droplets are used in dense coverage areas to improve print speed

With this technique, Epson printers can produce high print quality without sacrifi cing print speed and without
having to increase the number of nozzles on the print head.

Smallest ink droplets produce smooth photos, especially

benefi cial for highlights and detailed areas

Variable sizes combine to achieve

more tone representations for

smoother gradations

Ink Jet Printer Technical Brief Page 2

Large droplets are used in dense

coverage areas allowing Epson to have

fast print speeds without increasing the

number of print head nozzles