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04-13-2007, 07:42 PM
What do i do to fix this

04-13-2007, 10:10 PM
E3-40 - Copy Density Sensor output adjustment

1. Sensor connector is disconnected.
2. Sensor is defective.
3. SPC PCB connector is disconnected.
4. SPC PCB is defective.

Hope that helps.

08-13-2007, 05:10 PM
clean the drum sensor

08-14-2007, 12:44 AM
You can turn off F5-25 in a pinch if you need to wait on parts.


08-20-2007, 05:12 PM
just to add that when the copier is allowed to operate under low toner (u13) condition, developer is depleted quickly , and when toner is replaced, the machine will overtone and results in a dirty machine. We have converted all high speed 35xx-60xx series copier back to using OEM toner. This drop the frequency of e3/40 calls to almost zero. If youb are using katun or densi toner , be sure to leave a spare bottle and change the function to " STOP" when toner is out.

09-03-2007, 09:16 PM
1. Clean inside the machine
2. Change the developer if needed

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