Pressure roller pressurization and depressurization control
To prevent excessive wear on the pressure roller and help with jam-clearing procedures, the pressure roller
pressurizes only during printing and standby. The DC controller reverses the fuser motor. The fuser motor
rotates the fuser pressure-release cam.
Figure 1-44 Pressure-roller pressurization control
SR7 SR7
M2
Pressure roller
DC controller
Fuser pressure release cam
Fuser motor
Pressurized Depressurized
Fuser sleeve
The pressure roller depressurizes under the following conditions:
●
The product is turned off
●
Any failure occurs
●
During power-save mode
●
When a paper jam is detected
If the DC controller does not sense the fuser pressure-release sensor for a specified period after it reverses
the fuser motor, it notifies the formatter that a fuser pressure-release mechanism failure has occurred.
58 Chapter 1 Theory of operation ENWW
To Next Page
Loading...