onReady called but printer is not ready to print

[Szczypiorek44]

Description

I've implemented simple printing queue which starts printing when printer's onReady is observed.
Unfortunately, when invoking printAsync it's throwing StarIO10UnprintableException.

So looks like the onReady is called when the printer is not ready yet (for example after closing the printer's cover the onReady is emitted, but the printer is still making some sounds - I assume it's still getting ready to print).
What I've discovered is that if I add a little delay after the onReady has been observed, then the printing works totally fine.

This is my pseudocode:

 printer.printerDelegate = object : PrinterDelegate() {
            override fun onReady() {
                super.onReady()
                delay(2.seconds)
                printer.printAsync(commands).await()
            }

Your device where the bug occurs

Lenovo Tab M10 FHD Plus

Your printer

Star SP700 (SP742)

• Interface:
  Ethernet or Wi-Fi

Your development environment

ProductName: macOS
ProductVersion: 14.4.1
BuildVersion: 23E224

StarXpand SDK version is 1.8.0.

To Reproduce

Steps to reproduce the behavior:

1. Set up PrinterDelegate to monitor printer's statuses.
2. Invoke onReady (turn on the printer / close printer's cover / insert paper)
3. when onReady is called, invoke printAsync.

Expected behavior

When onReady is observed I'd expect the printer would be ready to receive print requests.

[Tatsuki-Yamamoto2731]

@Szczypiorek44
Thank you for your report.
I could recreate the problem you reported as well.

I think the most reasonable temporary measure is the 2-second delay you have implemented.

I have shared this problem with our R&D team, and we will investigate the root cause.
Then, I will keep you posted.

[Tatsuki-Yamamoto2731]

@Szczypiorek44
This problem will be fixed in the next version.
I will inform you when it is released.

[sher-dd]

@Szczypiorek44 to observe onReady(), do you have to open connection to printer first via openAsync?

[Tatsuki-Yamamoto2731]

@sher-dd
Yes, please refer to this sample code.

[Tatsuki-Yamamoto2731]

@Szczypiorek44
Sorry for the delay in getting back to you.
This issue was fixed in last month's update, V1.9.0.
Therefore, this Issue is closed.

[Szczypiorek44]

I've just tested on version 1.10.0 and I'm still experiencing the same issue:

logs:

com.starmicronics.stario10.StarIO10UnprintableException: Device has error. errorCode: DeviceHasError
	at com.starmicronics.stario10.printercontrol.f.a(SourceFile:1)
	at com.starmicronics.stario10.printercontrol.a.a(SourceFile:4)
	at com.starmicronics.stario10.StarPrinter.a(SourceFile:7)
	at com.starmicronics.stario10.StarPrinter.access$internalPrint(Unknown Source:0)
	at com.starmicronics.stario10.StarPrinter$G.invokeSuspend(Unknown Source:126)

com.starmicronics.stario10.StarIO10UnprintableException: Initialize failed. errorCode: None
	at com.starmicronics.stario10.printercontrol.f.a(SourceFile:1)
	at com.starmicronics.stario10.printercontrol.a.a(SourceFile:4)
	at com.starmicronics.stario10.StarPrinter.a(SourceFile:7)
	at com.starmicronics.stario10.StarPrinter.access$internalPrint(Unknown Source:0)
	at com.starmicronics.stario10.StarPrinter$G.invokeSuspend(Unknown Source:126)

@Tatsuki-Yamamoto2731 can we reopen this issue please?