Canon imagePROGRAF GP-4000 - Manual (Page 325)

Automatic Adjustment to Straighten Lines and Colors
If printed vertical lines are warped or colors are out of alignment, execute Print Head Alignment and adjust
the print head position.
Choose from Auto (standard) or Auto (advanced) for automatically adjusting the print head.
Minor warping and misaligned colors can usually be improved by executing Auto (standard) . If there is no
improvement, perform Auto (advanced) or Manual .
Manual Adjustment to Straighten Lines and Colors
When you execute Auto (standard) or Auto (advanced) , the adjustment pattern is printed, and the print
head position is adjusted based on the printing result automatically.
Important
• Because the results of adjustment vary depending on the type of paper used for adjustment, use the
same type of paper as you will use for printing.
• This function is not available with Tracing Paper, Translucent Matte Film, or Clear Film.
Note
• After print head replacement, we recommend executing Print Head Alignment . When Print pattern
after new head is set to ON , print head position adjustment is automatically executed after print head
replacement.
• To change the paper type or for more beautiful color borders, perform Auto (standard) .
• To ensure clear quality and when replacing the print head, perform Auto (advanced) to fine-tune the
position between nozzles and colors. To ensure high-quality printing, we recommend that you execute
Auto (advanced) .
• If adjustment is not possible as expected using special paper, try another type of paper or try Manual •
adjustment.
Manual Adjustment to Straighten Lines and Colors
Paper to Prepare
When using rolls
An unused roll at least 10.00 in. (254.0 mm) wide
When using sheets
Auto (standard) : Three sheets of unused paper, A4/Letter size or larger (or one sheet when using A2
or larger)
Auto (advanced) : Five sheets of unused paper, A4/Letter size or larger (or one sheet when using A2 or
larger)
Perform adjustment as follows.
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