Hello, I have a pixma mp550, it suddenly turned off while printing, I pulled the power cable, then plugged it in after 10 minutes and it turned on and gave me b200 error, I opened the printer cover and unplugged the power cable then take the printer head and clean it with alcohol completely and put it in its place. after turning on the printer doesn't show any error! It just turns on and immediately orange light turns on (without blinking) and then printer turns off automatically after few seconds! I pulled the power cable for more than 12 hours and after that , now the printer won`t turn on and has no any response. I tried everything
I saw a post here about power supply and got a little hope, my power supply voltage in standard mode is 9.5 and 12 , and after connecting 5+ dc to the first pin, the voltages increased to 23 and 30.5 , I connected the printer cable to the white socket of the power supply after that I connected the power cable into the wall, and after pressing the on/off button, instead of a 5+ voltage on first pin on white connector it was 0 and had no change while I pressed power button!
I have 1 idea which is a bit crazy, connecting the printer cables to the psu and connect the psu into the wall and then connect the 5v+ dc to the first pin! It might work and force it to turn on the printer by triggering the psu, but I'm afraid of damaging parts so I didn't! Also, my on/off button is healthy because it is not stuck and it was working fine until yesterday.
little hint if you open the psu cover never touch the capacitor in my case had something around 400v !
Thanks for all the replies.
I saw a post here about power supply and got a little hope, my power supply voltage in standard mode is 9.5 and 12 , and after connecting 5+ dc to the first pin, the voltages increased to 23 and 30.5 , I connected the printer cable to the white socket of the power supply after that I connected the power cable into the wall, and after pressing the on/off button, instead of a 5+ voltage on first pin on white connector it was 0 and had no change while I pressed power button!
I have 1 idea which is a bit crazy, connecting the printer cables to the psu and connect the psu into the wall and then connect the 5v+ dc to the first pin! It might work and force it to turn on the printer by triggering the psu, but I'm afraid of damaging parts so I didn't! Also, my on/off button is healthy because it is not stuck and it was working fine until yesterday.
little hint if you open the psu cover never touch the capacitor in my case had something around 400v !
Thanks for all the replies.
