I have an old Epson Stylus C62 printer so I have a similar monitor display when I am printing.

I don't use the monitor as a gauge to how far the printing has progressed. It is just an indication that printing "is" progressing ok.

I might be wrong, but doesn't that progress bar simply state that the print job has been sent to the onboard printer memory? If so, then the the more onboard memory a printer has means it can store more of the print job.

I don't see any way to change this, or any need.

Mark