i installed hp printer binding allright but cant find my HP Smart Tank 510.If i add the printer manually with the right ip address thing becomes online,discovers channels but only the status channel is working.Ink amount ,and other usefull channels are null.Is my printer unsupported by the binding or am i doing something wrong?
plus i often get this error in the logs
2022-01-21 00:14:35.532 [WARN ] [mmon.WrappedScheduledExecutorService] - Scheduled runnable ended with an exception:
java.lang.NullPointerException: null
at org.openhab.binding.hpprinter.internal.api.HPUsage.<init>(HPUsage.java:105) ~[?:?]
at org.openhab.binding.hpprinter.internal.api.HPWebServerClient.fetchData(HPWebServerClient.java:110) ~[?:?]
at org.openhab.binding.hpprinter.internal.api.HPWebServerClient.getUsage(HPWebServerClient.java:91) ~[?:?]
at org.openhab.binding.hpprinter.internal.HPPrinterBinder.checkUsage(HPPrinterBinder.java:669) ~[?:?]
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515) ~[?:?]
at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:305) ~[?:?]
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:305) ~[?:?]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) [?:?]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) [?:?]
at java.lang.Thread.run(Thread.java:829) [?:?]