The whole image is blurry or grainy .................................................................................................................. 187
The paper is not flat .......................................................................................................................................... 188
The print is scuffed or scratched ....................................................................................................................... 188
Ink marks on the paper ..................................................................................................................................... 189
Black ink comes off when you touch the print .................................................................................................. 190
Edges of objects are stepped or not sharp ....................................................................................................... 190
Edges of objects are darker than expected ...................................................................................................... 190
Horizontal lines at the end of a cut sheet print ................................................................................................ 191
Vertical bands of different colors ..................................................................................................................... 191
White spots on the print .................................................................................................................................... 191
Colors are inaccurate ......................................................................................................................................... 191
Colors are fading ............................................................................................................................................... 192
The image is incomplete (clipped at the bottom) ............................................................................................. 192
The image is clipped .......................................................................................................................................... 193
Some objects are missing from the printed image ........................................................................................... 193
A PDF file is clipped or objects are missing ....................................................................................................... 194
The Image Diagnostics Print ............................................................................................................................. 194
If you still have a problem ................................................................................................................................. 196
22 Troubleshooting scanner issues ................................................................................................................ 198
Cannot access the network folder .................................................................................................................... 198
Scanning to file is slow ...................................................................................................................................... 198
23 Troubleshooting scan-quality issues ......................................................................................................... 200
Random vertical lines ........................................................................................................................................ 201
Wrinkles or folds ................................................................................................................................................ 201
Line discontinuities ............................................................................................................................................ 202
Grain in area fills when scanning plain paper ................................................................................................... 203
Small color differences between adjacent CIS modules .................................................................................. 204
Vertical light lines at the intersection between CIS modules ........................................................................... 205
Variable line thickness or missing lines ............................................................................................................ 206
Inaccurately reproduced colors ........................................................................................................................ 206
Color fringing ..................................................................................................................................................... 207
Clipping in dark or light areas ........................................................................................................................... 208
Flare in the image when scanning glossy originals .......................................................................................... 209
Vertical red and green bands over white or black background ........................................................................ 209
The stop-start effect ......................................................................................................................................... 210
Vibration ............................................................................................................................................................ 211
Horizontal periodical banding ........................................................................................................................... 211
Defocus, blurring and fading colors .................................................................................................................. 212
Incorrect paper advance, skew during scanning, or horizontal wrinkles ........................................................ 213
viii ENWW
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