IMAGE FUSING AND PAPER EXIT
B121 Series/B259 Series 6-60 SM
6.13.2 FUSING UNIT DRIVE AND RELEASE MECHANISM
Fusing Unit Drive
The main motor [C] drives the fusing unit through a gear train, and drives the paper
exit rollers [A] through the timing belt [B].
Drive Release Mechanism
When the right door [I] is open, the spring [G] pushes the top end of the gear
holder [F] to the right. The drive gear is released from the fusing-unit drive gear [J].
When you close the right door, the mechanical link [H] pushes the spring [G]. The
gear holder turns counterclockwise by the force of another spring [D], and engages
with the fusing-unit drive gear.
Contact/Release Control
The drive power is not transmitted to the fusing unit ( Drive Release Solenoid)
during warming up when the fusing temperature (at the start) is 18°C or higher.
The drive power is transmitted when the fusing temperature is less than 18°C. This
contact/release control is based on the following fact.
The hot roller [L] takes a shorter time to become
hot enough if it is not turning during warming up.
When, however, the fusing temperature (at the
start) is low, the temperature of the hot-roller
surface may become uneven.
You can disable this control ( SP1-103-001).
B121D903.WMF
Fusing Temp. Contact/Release
18°C or higher
Release
Less than 18°C
Contact
[C]
[A]
[B]
[J]
[H]
[D]
[G]
[E]
[I]
[L]
[F]
[K]
To Next Page
Loading...
