17 Troubleshooting copy and scan quality issues ............................................................................................ 149
Random vertical lines ........................................................................................................................................ 150
Wrinkles or folds ................................................................................................................................................ 150
Line discontinuities ............................................................................................................................................ 151
Light colored area lls are missing in the scan or copy .................................................................................... 153
Grain in area lls when scanning plain paper ................................................................................................... 153
Small color dierences between adjacent scanbars ........................................................................................ 154
Vertical light lines at the intersection between scanner scanbars .................................................................. 155
Variable line thickness or missing lines ............................................................................................................ 156
Inaccurately reproduced colors ......................................................................................................................... 156
Color fringing ..................................................................................................................................................... 157
Clipping in dark or light areas ............................................................................................................................ 157
Flare in the image when scanning glossy originals .......................................................................................... 158
Vertical red and green bands over white or black background ........................................................................ 159
Vibration ............................................................................................................................................................ 159
Defocus, blurring and fading colors .................................................................................................................. 160
Incorrect paper advance, skew during scanning, or horizontal wrinkles ......................................................... 161
Vertical black band 30 cm wide ......................................................................................................................... 162
The scanner damages some originals .............................................................................................................. 163
Completely wrong colors ................................................................................................................................... 163
Vertical distortion .............................................................................................................................................. 163
Object replication (ghosting) ............................................................................................................................. 164
Clipping or incorrect scale factor when down-scaling in copies and prints ..................................................... 165
Incorrect edge detection, mostly when scanning tracing paper ...................................................................... 165
A copied or scanned image is very skewed ....................................................................................................... 165
18 The scanner diagnostic plot ...................................................................................................................... 167
Prepare the printer and the paper to print the diagnostic sheet ..................................................................... 168
Visual check for errors while printing the diagnostic sheet ............................................................................. 168
Scan or copy the diagnostic plot ....................................................................................................................... 171
Monitor calibration ............................................................................................................................................ 172
Save the diagnostic plot for future use ............................................................................................................. 173
19 Troubleshooting ink cartridge and printhead issues ................................................................................... 175
Cannot insert an ink cartridge ........................................................................................................................... 176
Ink cartridge status messages .......................................................................................................................... 176
Cannot insert the printhead .............................................................................................................................. 176
Cannot connect the tubes to the printhead ...................................................................................................... 177
20 Troubleshooting data communication issues ............................................................................................. 179
Communication failures between computer and printer .................................................................................. 180
Wired network issues ........................................................................................................................................ 180
Wireless network issues .................................................................................................................................... 181
ENWW vii
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