How to fix error code 49.38.07 on my HP M575 printer?August 21, 2015Printers Questions › Category: Printers › How to fix error code 49.38.07 on my HP M575 printer? 0 Vote Up Vote Down DChung Staff asked 7 years ago Error code 49.38.07 device error 0x00004A04 keeps coming up on the printers touch panel.