Large classification: Full page

Images and text missing from the whole sheet.

Middle classification: Full page

Image/text does not appear on the printout.

Small classification

Sample image

Description

All black

Copied paper is all black.

Blank

No image is reproduced.

Middle classification: Unprinted

Parts of the developed images and letters are not reproduced.

Small classification	Sample image	Description
White zone Part of a solid image or halftone is missing.		See Hazing on the Sides / Arched Glossy Streaks. See Faint Color at the Leading Edge of the Paper (White Spots). See Faint Color at the Trailing Edge of the Paper (White Spots). See When Using Transparent Film. See White Spots (Unprinted: Around Clear-toner Images). See White Streaks When Printing on Cast-Coated Paper. See White spots caused by fingerprints. See Faint Oval Spots at Paper Edges. See Rippling, Uneven Streaks, or White Spots (Caused by Condensation). See White Spots, Colored Streaks. See White Bird Tracks.
Wormholes The outline of a letter (or a line) is reproduced but the inside of it is missing.		See Patchy Images on Text or at the Edge of the Image. See Patchy Image (Clear Toner Image).
Halo There is a white line around a solid object.
Negative residual image Previously copied image pattern is reproduced (density difference in white) in the halftone part on the next page.
Positive residual image Previously copied image pattern is reproduced (density difference in black) in the halftone part on the next page.
Offset The same image is repeatedly transferred in the same interval.
Missing image Developed image slid in the subscan direction or missing.

Middle classification: Unevenness

The density of the developed image is uneven.

Small classification	Sample image	Description
High density Image density higher than configured.
Low density Image density lower than configured.		See Faint Small Solid-Fill Images. See Faint Black / White Streaks in the Areas Using Only Black.
Uneven density Image density is uneven within the same page.		See Uneven Density within 90 mm (3.5 inches) of the Trailing Edge. See Uneven Density between the Left and Right Sides (at 40 mm (1.6 inches) Intervals). See Uneven Density (Textured Paper). See Uneven Density (Metallic Paper or Textured Paper). See Mottling of Uneven Density on Half-Tone Images. See Uneven Density: Mixed-color Images.
Unevenness in indefinite shape Image density unevenness in indefinite shapes.		See Hazing on the Sides / Arched Glossy Streaks.
Uneven glossiness The glossiness is uneven inside a dark solid image. Check it by looking at the paper from different angles.		See Glossy Ghosting (Horizontal Glossy Streaks). See Multiple Horizontal Glossy Streaks (Glossy Ghosting). See Uneven Glossiness Occurring Partly. See Wavy Uneven Glossiness (on Thin Coated Paper). See Uneven Glossiness on Side 2 (Back of the Paper). See Uneven Glossiness when Printing on Thick Paper.
Color changing During repeated printing, the color or the density changes from sheet to sheet.
Color difference The colors differ between the original (1) and the output (2).
Rough image Color is uneven and small white spots are visible inside a solid image. With color copiers, white spots may not appear when two colors are overlapped.		See Mottling (Paper with Indentations and Other Textured Paper).
Earthworm shape White area in a shape similar to an earthworm.		See River Marks (Worm Tracks). See Worm Marks, Creases, and Fusing Errors on Envelopes.
Moire When superimposed regular pattern, it is a pattern of striped periodic possible by pixel to interfere with each other. Halftones may become mosaics.
Blur Image seemingly blurred in all directions.		See The Areas around the Images Using the Special Toner (clear) Blur.

Middle classification: Dirtied printouts

Non-image area is dirtied.

Small classification	Sample image	Description
Background stains Granular stains are visible in unprinted areas of the paper.		See White Toner Stains on the Background on Black Paper (Banding-Shape).
Backside stains Granular stains are visible on the backside of the paper.		See Stains appear on the back of the paper approximately every 205 mm (8.1 inches) in the paper feed direction.
Toner scattered Toner scattered around a letter.		See Toner Blasting (Lines). See Toner Blasting (Trailing Edge). See Toner Blasting (When Printing in 2 Colors).
Edge stains The side edges of paper are stained.		See Granular Toner Stains on the Paper Edges (When Printing on Thick Paper). See Stains at the Edge of the Paper.

Middle classification: Disturbed image

Image/text are disturbed and do not replicate the original.

Small classification	Sample image	Description
Irregularity Image becoming irregular in comparison with the original.		See Deterioration of Graininess in Halftone Areas.
Image expansion Image expanded abnormally in comparison with the original.		See Images Stretching (Margin Narrow at the Trailing Edge of the Paper).
Image contraction Image contracted abnormally in comparison with the original
Skew The corners of an image copied from a rectangle original are not square.

Middle classification: Scratches

Stains in the shape of vertical streaks which seem to result from being scratched by the guide plate ribs or other parts.

Small classification	Sample image	Description
Claw marks Stains of toner that got on the paper when it came into contact with drum/fuser pawls.

Small classification

Sample image

Description

Claw marks

Stains of toner that got on the paper when it came into contact with drum/fuser pawls.

Middle classification: Shifted image

Registration shift causes the images to appear longer or wider than the original.

Small classification	Sample image	Description
Vertical image shift Images and lines shifted in the paper feed direction.
Horizontal image shift Images and lines shifted in the direction perpendicular to the paper feed direction.
Vertical color shift Color shifted in the paper feed direction where colors should be overlaid.
Horizontal color shift Color shifted in the direction perpendicular to the paper feed direction where colors should be overlaid.

Others

For details see, Insufficient Gloss: Clear Image.
For details see, White Stains/Ghosting When Printing on Transparent Film.