Question: How to resolve the Critical Error 5200 ( P08 blinking on printer LCD )?

Answer:
Step 1) Unplug the printer from Power and wait 5 sec then Plug it back in.
Step 2) Press "Stop/Reset" button for 2 sec and hold it.
Step 3) Now Press and hold the "Power" button also with "Stop/Reset" for 5 sec.
Step 4) Release only "Stop/Reset" and wait for 2 sec (still holding "Power" button)
Step 5) Now press and release "Stop/Reset" 5 times.
Step 6) After 5 sec release "Power" button also (No LCD only power light seen).
Step 7) Wait for a minute (after the printer resetting).
Step 8) Now power off the printer by pressing "Power" button.
Step 9) After 30 Seconds press "Power" button again. Ready for Print now !!!