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You need a tech to adjust registration buckle from NVM, and if this not solve the issue maybe is needed to replace some parts (tray feed rollers or the registration assembly).
Check 740-053 to 740-060 for uncoated paper and all must be in 1.
And 740-061 to 740-066 for coated, must be 0.
Or you can try fuser for extrheaviweight paper.