Main classification: Lines

Definition: A smudge or a white area inside an image, in a linear shape with 1mm or smaller width.

Sub-classification 2	Example	Definition
Vertical black or colored streaks		Black or colored streaks in the paper feed direction.
Vertical white streaks		Parts of the image missing in the shape of streaks in the paper feed direction.
Horizontal black or colored streaks		Black or colored streaks perpendicular to the paper feed direction.
Horizontal white streaks		Parts of the image missing in the shape of streaks perpendicular to the paper feed direction.
Horizontal glossy streaks		Glossy streaks in the paper feed direction.
Horizontal white streaks		Glossy streaks perpendicular to the paper feed direction.
Image scratches		Stains in the shape of vertical streaks which seem to be caused by scratches from the guide plate ribs or other parts.

Definition: A smudge or a white area inside an image, in a linear shape with 1mm or larger width.

Sub-classification 2	Example	Definition
Jitter		Blurred area visible as bands perpendicular to the paper feed direction.
Banding		Banding at regular intervals perpendicular to the paper feed direction. (Gear eyes: Color unevenness in the same interval as the distance between the teeth of the gear.)
Vertical white bands		White bands in the paper feed direction.
Horizontal white bands		White bands perpendicular to the paper feed direction.
Vertical black or colored bands		Black or colored bands in the paper feed direction.
Horizontal black or colored bands		Black or colored bands perpendicular to the paper feed direction.
Fuzzy lines		Blurred images in the shape of slightly winding bands in the paper feed direction.
Roller tracks		Stains on the transport rollers transferred to paper.