The output of IR2104 is not square wave, Ho and Lo are not square wave. When Ho is high, then Lo is also high.

[Sajiwo]

The output of IR2104 is not square wave, Ho and Lo are not square wave. When Ho is high (yellow in osiloskop), then Lo is also high (blue in osiloskop). How to fix it?

 

[Harald Kapp]

Show us a schematic of your circuit, where your probes are attached and a clear front view of the scope display, please.

 

[Alec_t]

What are your Vcc and Vin voltages for the IC?