При вводе dev/usb/lp0 он говорит: "Нет такого файла или каталога"

Попробуйте использовать SUDO. Страница MAN для escputil также говорит об этой ошибке как об известной ошибке, попробуйте еще раз ввести команду, которая должна решить проблему.

   USB-connected printers sometimes fail to identify or return ink levels.
   You may have to repeat the command.  This is probably a timing issue in
   escputil, not a flaw in the printer.

   Anything  requiring bidirectional communication with the printer (iden-
   tify, ink levels, or head  alignment  without  specifying  the  printer
   model)  requires  read/write  access  to  the printer port (for example
   /dev/lp0).  This may require these operations to be performed as  root.
   In  addition,  kernel  support is required for bidirectional communica-
   tion.   For  Linux  version  2.2,  CONFIG_PRINTER_READBACK  should   be
   enabled; this is called CONFIG_PARPORT_1284 on 2.4 and later kernels.

   If  the  printer  is performing self-test or head cleaning on power up,
   the identify and ink level commands will time out, although the printer
   successfully  receives  the command.  The command will need to be reis-
   sued when the printer is quiescent.