Develop QC 2235 Plus Service Manual page 105

QC 2235plus Theory of Operation Ver.1.0 Mar. 2004
1. The fusing speed in the beginnings is set to the higher speed, thereby forming a loop in
the paper between the 2nd Image Transfer Roller and the Fusing Roller.
2. When the length of the loop becomes small to deactivate the Fusing Paper Loop Sen-
sor, the fusing speed is switched to the lower level.
3. When the length of the loop becomes large to activate the Fusing Paper Loop Sensor,
the fusing speed is again switched to the higher level.
4. The sequence of these operations is repeated so that the fusing speed is automatically
changed in two steps according to the loop length. This effectively makes for the differ-
ence between the fusing speed and paper transport speed during image transfer.
Paper
Pressure Roller
Detecting Lever
2nd Image Transfer Roller
2-75
Fusing section
Fusing Paper Loop
Sensor (PC4)
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