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Copy sheets are guided from a photoconductor (PC) drum to the fuser roll nip so as to accommodate higher speed movement of the copy sheet through he fuser rolls by use of cam-actuated pivoting guides.
English (United States)
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Fuser Entry Guide and Paper Bubble Former
Copy sheets are guided from a photoconductor (PC) drum to the fuser roll
nip so as to accommodate higher speed movement of the copy sheet through he
fuser rolls by use of cam-actuated pivoting guides.
Copy sheet 1 is detacked from the photoconductor drum 2 by the detack
finger. Fuser entry guides 3, in position A, guide the leading edge into the fuser
roll nip. The paper path with guides in this position forms a "bubble" in the copy
sheet. As the leading edge of the copy sheet enters the fuser roll nip, guides 3
rotate counterclockwise to position B which creates slack in the copy sheet and
allows the leading edge to move through the fuser rolls at a faster rate without
interference from that portion of the sheet still in contact with the PC drum. The
remainder of the copy sheet is detacked before the slack bubble is completely
pulled out by the fuser rolls, eliminating the possibility of damage to the unfused
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