Printer error 5B00 on ip2700 what should i do?

SOURCE: priter is showing a error code 5B00

* With the printer powered off but connected to a power source, press the Power button while pressing and holding the Stop/ Reset button.
* When the Power is lit, press the Stop/Reset button two times while pressing and holding the Power button.
* When releasing the Power button and the Stop / Reset button (regardless of order), the printer will move into a service mode. (Waiting for menu selection)
* When the on/off lights in green, press the Stop/Reset button the specified number of time(s) according to the function listed in the table below.(Each time the Stop/Reset button is pressed, the LED lights alternately in orange and green, starting with orange.)note: press 4 times for waste ink counter reset.

SOURCE: Check Printer (5B00)

try this -
1) Enter SERVICE MODE By pressing Menu-Scan-Copy-Scan
2) Enter NVRAM by presing <--- or ---> then OK
3) SET ABS-M LEVEL TO 0
4) OK
good luck