Toshiba DP1640
Adjustment. Auto-Toner Sensor
When the developer material is replaced, adjust the auto-toner sensor in the following procedure.
Procedure (Adjustment Mode (05-200))
- Install the process unit into the equipment.
Note:
Do not install the toner cartridge. - While pressing [0] and [5] simultaneously, turn the power ON.
The following message is displayed on a 7-segment LED.
[AJ] - Key in code [200] and press the [START] button. The display on the 7-segment LED changes as follows and the “density LEDs” lights from the left in order.
- After about 2 minutes, all the “density LEDs” light and a value on the 7-segment LED automatically starts changing.
[230]
Note:
The output voltage of the auto-toner sensor (2.30 V in the above case). The drum, developer unit, etc. are in operation. - After a short time, the value on the 7-segment LED becomes stable and all the “density LEDs” are turned off.
- Check if the value on the 7-segment LED is within the range of 232 to 248 (i.e. the output voltage range of the auto-toner sensor is 2.32 V to 2.48 V.).
- If the value is not within the range of 232 to 248, press the reproduction ratio buttons ([25%] / [200%]) to adjust the value manually.
- Press the [INTERRUPT] button. The drum, developer unit, etc. are stopped and the following is displayed on the 7-segment LED.
[AJ] - Turn the power OFF.
- Install the toner cartridge.