HP (Hewlett-Packard) CF081A#BGJ Benutzerhandbuch

Seite von 646
OHT detection
The OHT sensor detects overhead transparencies. The OHT sensor is a transmission sensor that uses an
LED. The DC controller determines a media mismatch and notifies the formatter when the media type
differs from the media type detected by the OHT sensor. The DC controller turns the LED in the OHT
sensor on and off during the wait or initial rotation period. If the intensity of the light does not match the
specified value, the DC controller determines that the OHT sensor has failed.
Fusing and delivery unit
The fusing and delivery unit fuses the toner onto the paper and delivers the printed page into the output
bin. The following controls ensure optimum print quality:
Loop control
Pressure roller pressurization/depressurization control
A sensor detects when the output bin is full, and the DC controller notifies the formatter.
Figure 1-41
  Fuser and delivery unit
Fuser/delivery block
Y
M
C
K
52
Chapter 1   Theory of operation
ENWW