We have e249 code on start

Open Right cover (3 screws) -

to close the 2 wires to the switch - key
state without - not closed
the key is turned - closed

this is a stapler issue in the fininisher, it is either off track or something is stopping it from moving or there could simply be staples jammed up

you must see what apears on screen what paper size and were to put

hi;
you mean E00315-000d-00
this error code appears when there is a codec error the solution is :
1) replace the SDRAM
or
2) replace the HDD
or
3) replace the main controoler board

E249
Cause The memory elements on the PCB are not connected, have poor contact, or
are faulty.
Description
0001 An error has occurred in the course of a read/write check of the
memory on the IP memory PCB.
0002 An error has occurred in the course of a read/write check of the
memory on the ED board.

Try to reconnect all connectors behind on dc controller.

Need to find a vacuum hose leak and replace the hose. Look for the plastic hoses and the black rubber adaptors. Over year, these are cracking causing a leak hence there is a problem. When you put in gear, the engine carry a load but there is no engine compensation that is why it stalls. The engine only knows when it senses through the vacuum loop. Good luck.

This error code relates to a problem between the scanner and the reader board the connector looks like and old printer connector (parallel) try unplugging and reseating this should resolve it.

put in toner then and close cover

Please check the main thermistor TH1 has poor contact or open circuit.,the thermal switch is opened.In this case the fixing heater has opened and the SSR is faulty.
For the reset : COPIER-FUNCTION-CLEAR-ERR.

clean or replace your pattern reader also turn image off in service mode this is only a temp solution and you can get miss regristation later on