Raspberry Pi 3B USB Printing Issue

Hi,

I have an Epson printer connected to one of the USB ports of my RPi 3B. The
printer is detected as a ugen(4) driver and then I have a text file -
myfile3.txt which contains 10 lines of repeating sentences.

freebsd@generic:~ % dmesg | grep EPSON
ugen1.4: <EPSON EPSON UB-U03II> at usbus1

freebsd@generic:~ % cat myfile3.txt
The quick brown fox jumps over the lazy dog.
The quick brown fox jumps over the lazy dog.
The quick brown fox jumps over the lazy dog.
The quick brown fox jumps over the lazy dog.
The quick brown fox jumps over the lazy dog.
The quick brown fox jumps over the lazy dog.
The quick brown fox jumps over the lazy dog.
The quick brown fox jumps over the lazy dog.
The quick brown fox jumps over the lazy dog.
The quick brown fox jumps over the lazy dog.

freebsd@generic:~ % cat myfile3.txt  > /dev/usb/1.4.1

I print the file successfully through device file redirection with cat
command as described above. However, there were times that printing seemed
to suspend and withhold especially when my RPi 3B system got idle for some
period of time. Suspended or withhold in such a way that out of the 10
lines there were only 2-3 lines to be printed in the paper. So, the only
remedy I have for now is to reboot the system to be able to get back to
normal printing. I'm using the 14.0-CURRENT #0 main-n253384-45c23c2608e:
Thu Feb 24 09:18:58 UTC 2022 and my RPi 4B does not manifest this behavior
using this same 14.0-CURRENT version. Any idea what's going on?

I found these sysctl knobs thinking if some tweaks would help but not sure
what are the exact settings beyond these defaults.

hw.usb.timings.port_resume_delay: 40
hw.usb.timings.port_powerup_delay: 300
hw.usb.timings.port_reset_recovery: 10
hw.usb.timings.port_root_reset_delay: 200
hw.usb.timings.port_reset_delay: 50

(Resend this message without dmesg and sysctl outputs as files are quite
big, sorry I didn't notice it.)

Thanks,
Archimedes