40ab80lc 3t 915 rip - Dell 1815dn All-In-One Laser Printer

That means there is no communication. There is a system error that is probably a fatal error.
You could try updating the firmware.

So...
-15 - 3t = 2t +10
-15 - 10 = 2t + 3t
-25 = 5t
t = -5

My suggestion would be to contact Dell. Their support page is here:
Support Dell US

You'll need your Service Tag number to get support.
Good luck!

Just carry out the indicated additions and subtractions.

5t+t-7t+3t = 2t
-3-5+8 = 0

The result is 2t+0 or simply 2t

Dear
Its internal failur of Main PBA , replace it.
Thanks.

If you have a leaking FRONT LOADER, the following link explains how to access and inspect your washer for leaks:

http://www.fixya.com/support/r3576656-washer_leak__front_loader

In the majority of the cases with front loaders, the door bellow begins to leak. A routine inspection of the seal perimeter will tell you if there are any rips or tears. If the bellow is damaged, it must be replaced. The following link explains how:

http://www.fixya.com/support/r3574186-installing_a_door_bellow_on_a_front_load

Read through the link provided and let me know if have any questions. Please post back with your MODEL NUMBER so I can determine how your washer is specifically configured. I hope you find this information helpful.

this is technical problem i advise you to show it service center people.

It is not possible to scan to email anymore. Also the copier makes noise when copying and the result is blurred and illegible.

Here is the documentation on that error


07-276 TRAY 3 PAPER SIZE SENSOR BROKEN (TTM)
EXPLANATION
An abnormal AD value was detected from the Tray 3 Paper Size Sensor.
Refer to BSD: CH7.4 CH7.13A
Procedure
Set Tray 3 in the machine.
Between Tray Module PWB J548-11 (3T: J548-11 , TT: J548-11) (+) GND (-)
Is the voltage the same as that in the Tray 3 Paper Size Sensor Output Table inscribed in BSD: CH7.4?
Yes No
Between Tray 3 Paper Size Sensor J820-2 (3T: J820-2 TT: J820-2 ) (+) GND (-)
Is the voltage the same as that in the Tray 3 Size Sensor Output Table inscribed in BSD: CH7.4?
Yes No
Between Tray 3 Paper Size Sensor J820-1 (3T: J820-1 TT: J820-1 ) (+)J820-3 (3T: J820-3 TT: J820-3) (-)
Is the voltage +5VDC?
Yes No
Using the wire network from Chapter 7, check the +5VDC circuits to Tray 3 Paper Size Sensor J820-1
(3T: J820-1 TT: J820-1 ).
(WN 7.3.6 +5VDC-2)
Check for malfunctioning paper guide, poor contact caused by bending in the projection that pushes the switch, and
if there is no problem, change the Tray 3 Paper Size Sensor. (PL16.1)
Check for cut wires, poor connections between Tray 3 Paper Size Sensor J820-2 (3T: J820-2 TT: J820-2 ) and Tray Module
PWB J548-11 (3T: J548-11, TT: J548-11)
Change the following parts successively:
TRAY MODULE PWB (PL16.9)
MCU PWB (PL13.1)
ESS PWB (PL13.1 ).