background image

14

Inkjet’s different images 

In newly emerging areas like medical

imaging and 3-D printing, significant

improvement still needs to be made to

the print head design and ink

formulations in order to fulfil the high

expectations of printer reliability and

image durability demanded.

But drop-on-demand inkjet’s capacity to

print vivid colour images at relatively low

cost has already led to the technology’s

particular dominance in both the cutsize,

Small Office and Home Office (SOHO)

sector and in the large-format colour

printer market. 

Cut to Size

In the office network colour printer

market, the battle between colour laser

and colour inkjet printing technologies is

still ongoing: the delicate balance

between print speed, image quality,

image durability, purchase price and

operation cost all key factors.

The facts are that:

• 

by end 2002, over 50% of the SOHO

printer market is expected to have turned

to colour - this statistic includes both

laser and inkjet printer options, with the

latter steadily gaining dominant market

share;

• 

there is a continued decentralisation of

office printing away from the photocopier

towards personal ‘desktop’ printers;

• 

high quality colour documents such as

proposals and presentations, previously

outsourced to printers and copy shops,

are being printed more and more in-

house;

• 

the growing range of digital cameras

and desktop scanners has seen

widescale escalation of desktop printing

of images.

A

S TOUCHED ON THROUGHOUT THIS DOCUMENT

INKJET PRINTING

TECHNOLOGIES ARE USED IN A WIDE RANGE OF APPLICATIONS INCLUDING

HOME

OFFICE

LARGE FORMAT

INDUSTRIAL

THREE

-

DIMENSIONAL

MEDICAL

,

PACKAGING

TEXTILE AND OTHER SPECIALTY PRINTING SECTORS AND EVEN

COMMERCIAL WEB

-

FED PRINT WORK

.

Market/Application Key Player 

Current Markets

Small office/

Hewlett-Packard,

and Applications:

home office

Canon, Epson

Office network

Tektronix, Hewlett-Packard

Graphic arts

Iris, Tektronix, Epson

Industrial/postal

VideoJet, Marsh, Image, 

marking

Willet

Large format

ColorSpan, Encad, Hewlett-
Packard, Mimaki, Epson

Emerging Markets

Home photo

Hewlett-Packard, Epson,

and Applications:

Canon

Multifunction

Hewlett-Packard, Canon

Digital color press

Scitex, ACS, Tektronix

Grand format

Idanit, Vutek, Nur, 
ColorSpan, Mutoh

Textile

Canon, Seiren, Stork, Toxot

Medical imaging

Iris, Sterling Diagnostic

3-D printing

3D System, Z Corporation

Applications in Inkjet Printing 

Summary of Contents for International inkjet printing

Page 1: ...inkjetprinting T E C H N O L O G Y I N K S A N D P A P E R F O R M real Digital imaging...

Page 2: ...to Size 14 The Larger Chunk 16 Colour in Profile 17 Jetting Trends 18 INKJET PRINTING IS A NON IMPACT DOT MATRIX PRINTING TECHNOLOGY IN WHICH SMALL DROPLETS OR PARTICLES OF INK ARE JETTED FROM A SMAL...

Page 3: ...y of substrates such as glass and ceramics However they do not allow for a very high print resolution hence at present the technology is not a market leader With this potential alternative solution th...

Page 4: ...o say that the printing devices supplied by most of today s manufacturers are equipped with either thermal or piezo print heads This is mainly due to the cost effectiveness of this technology over con...

Page 5: ...dvantage of piezo is the possibility of making smaller units resulting in more nozzles per print head which allows a higher resolution of print to be achieved A THERMAL INKJET PRINT HEAD IS EQUIPPED W...

Page 6: ...d the piezoceramic deformation mode A squeeze mode design usually has either a thin tube of piezoceramic surrounding a glass nozzle or a piezoceramic tube cast in plastic that encloses the ink channel...

Page 7: ...uce the resultant print quality Image banding is a common result from an out of specification nozzle plate Various nozzle geometries have been designed for inkjet print heads the two most widely used...

Page 8: ...d Epson Color Stylus In the case of thermal inkjet due to the basic vapour bubble formation process water is an obvious material of choice Viscosity of water based inkjet inks range from 2 to 8 cps Wh...

Page 9: ...hs whereas pigmented inks can last several years Dye inks are also less water resistant as the pigmented ink s particles tend to get stuck in paper fibres as the ink dries so only about 5 10 will re d...

Page 10: ...inimizes the effect of electrical fields on the ink and print head materials There are also legitimate claims that with some coated media oil based inks enjoy faster drying time and the absence of coc...

Page 11: ...he finer the detail of the printed image High resolution is generally considered to be 1200 5000 dpi In conventional printing variable sized dots are set down in fixed patterns that in CMYK form roset...

Page 12: ...etail of the printed image High resolution is generally considered to be 1500 5000 dpi The ink seems to leak through to the other side of the paper This is known as strike through and occurs when the...

Page 13: ...ted material sticks together Working or storage conditions for relative humidity are important See your paper instructions for the optimum storage conditions The paper won t load into the printer Chec...

Page 14: ...ce printing away from the photocopier towards personal desktop printers high quality colour documents such as proposals and presentations previously outsourced to printers and copy shops are being pri...

Page 15: ...ty they allow at a comparatively low sheet cost making them ideal for multi purpose print environments Uncoated surface papers for monochrome printing where colour quality is not even an issue Present...

Page 16: ...asonable cost per page have also recently led to an inkjet assault on the world of colour proofing where optimum colour quality is an essential as distinct from a value added component see Colour in P...

Page 17: ...ermit tremendous flexibility to both users and vendors For example it allows users to be sure that their image will retain its colour fidelity when moved between systems and applications assuming the...

Page 18: ...re moving towards support of six colour printing proofing capability CMYK and two additional colours Similarly through advances in ink technology and glossy paper grades photo realism image quality is...

Page 19: ...19...

Page 20: ...l matt 200 150 g m 2 on an hp indigo press 3000 M real Digital imaging AN DER GOHRSM HLE 51465 BERGISCH GLADBACH DEUTSCHLAND GERMANY TEL 49 0 2202 152052 FAX 49 0 2202 152805 M real Digital imaging wo...

Reviews: