Canon imagePROGRAF TA-20 MFP 24" Large Format Printer with L24ei Scanner and Stand Kit User Manual
Page 878
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4932
Cause
The print head cannot be calibrated because the printer is loaded with very transparent film-type paper.
What to Do
Tap
OK
on the touch screen to dismiss the error.
We recommend calibrating the print head with a frequently used, non-film paper.
Automatic Adjustment to Straighten Lines and Colors
878
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