March 2000 © TOSHIBA TEC
6-19
DP120F/DP125F PBA Outline and Sensor Function
4.3.9 Toner Empty Sensor
Fig. 6-4-12
The toner empty sensor is installed on the developer assembly and detects the amount of toner
in the developer assembly. When the toner is running out, the sensor vibrates and causes the
output signal voltage to increase. The amount of toner is detected by observing a change in this
voltage.
4.3.10 Bypass Tray Paper Empty Sensor
Fig. 6-4-13
The bypass tray paper empty sensor is installed on the base block and detects the presence or
absence of recording paper in the bypass tray.
When the actuator of the sensor is pushed up by recording paper in the bypass tray to turn on
the sensor, the recording paper placed will be detected.
Developer assembly
Toner empty sensor
Developer assembly
Toner empty sensor
06-04-12
Recording paper
ON
Feed direction
Bypass tray paper
empty sensor
06-04-13
Summary of Contents for DP120F
Page 1: ...PLAINPAPERFACSIMILE File No 31200001 R0112216901 TTEC ...
Page 401: ...DP120F DP125F Circuit Description 7 92 March 2000 TOSHIBA TEC 07 05 00 Fig 7 5 1 ...
Page 656: ...DP120F DP125F Troubleshooting 11 44 March 2000 TOSHIBA TEC ...
Page 700: ...DP120F DP125F Appendix 12 2 March 2000 TOSHIBA TEC 1 2 Error Count List ...
Page 701: ...March 2000 TOSHIBA TEC 12 3 DP120F DP125F Appendix 1 3 Function List for Maintenance ...
Page 702: ...DP120F DP125F Appendix 12 4 March 2000 TOSHIBA TEC 1 4 Drum Unit ...
Page 703: ...March 2000 TOSHIBA TEC 12 5 DP120F DP125F Appendix 1 5 Memory Dump List ...
Page 706: ...SHUWA SHIBA PARK BLDG A 2 4 1 SHIBA KOEN MINATO KU TOKYO 105 8524 JAPAN ...