Feature:

SectionPrinter is now working
Migration:
Section, Printers, SectionPrinters working

bookie/src/app/printers/printer.service.ts

@@ -3,7 +3,7 @@ import {HttpClient, HttpHeaders, HttpParams} from '@angular/common/http';
 import {ErrorLoggerService} from '../core/error-logger.service';
 import {catchError} from 'rxjs/operators';
 import {Observable} from 'rxjs/internal/Observable';
-import {Printer} from './printer';
+import {Printer} from '../core/printer';
 
 const httpOptions = {
   headers: new HttpHeaders({'Content-Type': 'application/json'})