SOLID Principles in JavaScript

Which SOLID principle is violated in this interface design?

interface Printer {
  print();
  scan();
  fax();
  photocopy();
}

class BasicPrinter implements Printer {
  print() { /* implementation */ }
  scan() { throw new Error('Scan not supported'); }
  fax() { throw new Error('Fax not supported'); }
  photocopy() { throw new Error('Photocopy not supported'); }
}

Single Responsibility Principle
Open/Closed Principle
Interface Segregation Principle
This code violates the Interface Segregation Principle (ISP). ISP states that clients should not be forced to depend on interfaces they don't use. The BasicPrinter is forced to implement methods it doesn't support. A better design would be to separate the interface into smaller, more focused interfaces like Printable, Scannable, Faxable, etc., allowing classes to implement only the functionality they support.
Dependency Inversion Principle

Next Question (4/20)