Figure 1 The number “16” from the Canon Inkjet (Left) and HP Inkjet (Right)

Figure 2 The letters “L. & W” from the Canon Inkjet (Left) and HP Inkjet (Right)

Figure 3 The number “16” from HP Laser (Left) and Canon Laser (Right).

Figure 4 The letters “L. & W” from HP Laser (Left) and Canon Laser (Right)

Figure 5 Some letters from dot-matrix receipt (Left) and check (Right).

Figure 6 Some numbers from dot-matrix receipt (Left) and check (Right).

Characteristics

Inkjet Printer

Laser Printer

Dot-Matrix Printer

Overall print quality

Low

High

Moderate

Appearance

Contains satellites of ink drop (Spur marks)

Glossy

Cluster of Dots

Contours

Rough with ups and downs

Clear

Moderate

Edge Roughness

Uneven and rough

Sharp and Refined

Rough

Inking Uniformity

Inconsistent; spotting present

Consistent and uniform

Mostly consistent

Table1 Differences between Inkjet, Laser and Dot-Matrix samples.