Canon imagePROGRAF GP-4000 - Manual (Page 147)

2. When " [Detect paper width] is disabled. Do you want to keep it disabled and 2.
continue? " appears on touch screen, tap Keep it disabled and continue .
3. Open top cover and check position where paper is loaded. 3.
To start printing from the current position, close the top cover.
To reposition the paper, lift the release lever.
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