Canon imagePROGRAF GP-4000 - Manual (Page 324)

Adjusting the Print Head
If printed documents are affected by the following problems, try adjusting the print head.
• If printing is faint or affected by banding in different colors •
Execute Nozzle Check in the touch screen menu to check for print head nozzle clogging.
Checking for Nozzle Clogging
• If printed vertical lines are warped or colors are out of alignment •
Execute Print Head Alignment in the touch screen menu to adjust the print head position.
First, execute Auto (standard) of Print Head Alignment . If the print result is not improved, execute
Auto (advanced) or Manual .
Automatic Adjustment to Straighten Lines and Colors
Manual Adjustment to Straighten Lines and Colors
• If paper rubs against the print head, or image edges are blurred •
Setting Head height in the touch screen menu and changing the height of the print head may improve
the situation.
Troubleshooting Paper Abrasion and Blurry Images
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