Column headings in tables are partially bold

[madVis]

Hi

I'm trying to print a table like:

const tableHeaderArray = [
      { width: 7, align: 'left' },
      { width: 7, align: 'left' },
      { width: 7, align: 'right' }
    ];

    const tableBodyArray = [
      [
        (encoder) => encoder.bold(true).text('BoldHeadingName').bold(false),
        (encoder) => encoder.bold(true).text('BigHeadingOccupies3Lines').bold(false),
        (encoder) => encoder.bold(true).text('QuantityInBold').bold(false)
      ],
      [
        'Banana',
        'doz',
        '2'
      ],
      [
        'Cherry',
        'kg',
        '1'
      ]
    ];

When the header takes multiple lines only the last two lines are getting bold in the below print

Expected result: the first 2 lines should also be bold

[NielsLeenheer]

I am not seeing this issue (anymore?)

To be fair, my local code has gone though quite a bit of work since the 3.0.1 release and will land on the main tree later this week, including a really handy debugging tool.

[madVis]

Thanks for the update, appreciate it. The debugging tool sounds cool, looking forward to trying it out. I’ll test again once the new changes are available and update.

[NielsLeenheer]

All the recent changes have landed now, including the playground tool (in the tools directory). A hosted copy is also available at: https://point-of-sale.dev/receipt-printer/playground

[madVis]

Hey, Thanks for the update and for introducing the playground tool—it's really helpful!

I tested using the latest changes and still seeing the issue.
From the playground, the bold text appears correctly in the preview but it prints without the bold formatting when I use the printer from the playground.
I also tried using a different printer but the same result occurred.

[NielsLeenheer]

The playground gives the right rendering and the commands also seem to look right. I've tested it on multiple printers and they all print with the full header in bold.

So I am thinking it is the printer.

Which type of printer are you using? And when you said you tested multiple printers, were they the same type or manufacturer?

[madVis]

Printers are from different manufacturers. Tried on a local printer Shreyans MPT-III and Everycom EC400

[madVis]

Hey @NielsLeenheer, I hope you're doing well! I was wondering if there are any updates on when the latest version of the library will be available?

[NielsLeenheer]

If the playground shows it the right way, but the printer shows in a different way, than I am afraid it is the printer that is at fault. Some printers follow the ESC/POS specifications better than others. And there is very little I can do to work around it, as changing something for your printer will break stuff for others. I personally know the MPT-II printer is very peculiar, so the MPT-III may also have the same issues.

[madVis]

Hey @NielsLeenheer
Since the bug is due to printer limitations, I can work around it for now. Thanks for looking into it.
Do you have an ETA for the 3.0.2 release? Thanks!