Cleaning Mechanism (Pro C5200S/C5210S)

The Pro C5200S/C5210S has a fusing cleaning web unit. Material attached to the fusing belt is removed by the fusing cleaning web unit [B] through the pressure roller [A], in order to prevent black spots on prints.

The fusing cleaning web unit [B] uses the cleaning web method (heatproof non-woven fabric).

The fusing cleaning web [D] contacts the pressure roller [A] and wipes off toner and paper dust on the roller’s surface while being rolled up by the web take-up roller [C]. The fusing cleaning web [D] contains silicone oil in order to lubricate the pressure roller and the fusing belt. The fusing cleaning web [D] is driven by the cleaning web motor [E], which turns on every time a certain number of sheets are printed in a job, and rolls up a certain length of the fusing cleaning web.

The web take-up roller [C] rolls up the used web.

• Web Near-End
  When the fusing cleaning web consumption reaches the setting in SP1-902-004, the operation panel shows "Web Near-End". If the SP setting is 81% (default), the machine shows "Web Near-End" on the operation panel at 450K.
• Web End
  The fusing cleaning web unit has the actuator [A]. As the web take-up roller [B] rolls the used web up, the actuator [A] shifts down. When the web is all used up, the cleaning web end sensor [C] detects the actuator [A]. The machine stops printing after this is detected.
  
• Cleaning Web Set Sensor / Cleaning Web Contact Sensor
  The cleaning web set sensor [A] detects whether the fusing cleaning web unit exists or not.
  The cleaning web contact motor [B] rotates the shaft [G] on which two disks [C] are attached. The disks [C] push up the fusing cleaning web unit to make the fusing cleaning web [D] contact the pressure roller. At this time, the cleaning web contact sensor [E] detects the actuator [F] on the shaft and the machine detects that the fusing cleaning web contacts the pressure roller.
  
  
  
• Counter Measure for Cleaning Web Jam
  With Pro C5200S/C5210S, when small size paper jams, the pressure roller [A] drives in reverse so that the machine can detect the remaining paper. Then the remaining paper moves to an area where it can be removed easily.
  But if the pressure roller [A] drives in reverse while the fusing cleaning web [B] contacts it, the fusing cleaning web can become wrapped around the roller. So to prevent that, the fusing cleaning web separates from the pressure roller when a jam occurs.