Potential Sensors

Potential sensors measure electrical potential on the surface of the drum, and are installed in the left upper side of the drum unit (viewed from the front of the machine). Each color station has one. The space [B] between the drum surface and the potential sensor [A] is 3 mm.

No.DescriptionNo.Description

1

Potential Sensor

3

Drum

2

Potential Sensor Board

  
ID / Music Sensor

  • [A]: Front
  • [B]: Center
  • [C]: Rear
Tone Pattern on the ITB

  • [A]: ITB
  • ,,: MUSIC Sensor = A sensor to detect MUSIC control patterns
  • : ID Sensor = A sensor to measure the amount of toner that is attached to the ITB. This sensor is used to detect the patterns for image adjustment that are made during potential control, and is also used to detect ID patterns between sheets.
Temperature / Humidity Sensor

The temperature/humidity sensor located at the right rear side of the machine detects the temperature and humidity. This sensor affects the potential control (developer agitation time, target developer gamma determination) and charge current adjustment.