MYOB Won’t Print After the August 2026 Update in Adelaide
A Microsoft security update broke printing in MYOB AccountRight and other business software. Your printer is fine — here is the real cause and the font fix that lasts.
Your printer is not the problem
If MYOB will not print but Word prints to the same printer, the fault is inside the software — not the hardware.
A Microsoft security update released on 11 August 2026 tightened how Windows prepares fonts for printing, and fifteen fonts that ship with Windows now fail that check. Calibri is one of them. When a form uses an affected font the document can never finish building, so nothing is ever sent to the printer. You either get an error naming a font file, or the progress bar simply sits on “Please wait” and never moves.
Nothing is wrong with your printer, driver, print queue, network or company file. The fonts are not damaged either — only the code that prepares them for printing changed.
The thirty-second test
Print one line from Word or Notepad to the same printer. If that works and MYOB does not, this is your problem.
Check the timing
Most machines picked the update up between 11 and 13 August 2026. If printing worked the week before, that is your answer.
Emailing fails too
Sending an invoice as a PDF uses the same rendering path, so it fails identically. That is confirmation, not a second fault.
Preview proves nothing
Print preview never touches the broken code, which is why the invoice looks perfect right up until you press print.
Confirm it properly
One Windows file settles it. Open PowerShell as administrator and paste this in.
| Version reported | Affected? | What it means |
|---|---|---|
| 4.8.9344.0 | Yes | This machine has the update that causes the fault. |
| 4.8.9340.0 or lower | No | This machine has not got the update. Your printing problem is something else. |
Several results is normal — Windows keeps more than one copy. Any single result showing 4.8.9344.0 means the machine is affected. Check the file version rather than the update name: the update carries a different KB number on every version of Windows, so searching for one KB will tell you a machine is clean when it is not.
Which fonts break, and which are safe
Fifteen faces fail. Cambria Regular is fine while its bold and italic are not, which is why a form can print until somebody bolds a heading.
Broken
Calibri (all four), Cambria bold, italic and bold italic, Constantia (all four) and Corbel (all four).
Safe
Calibri Light, Corbel Light, Candara, Arial, Verdana, Tahoma, Times New Roman, Georgia, Segoe UI and Consolas.
Swap to Calibri Light
Same family, drawn slightly lighter. On a printed invoice nobody notices — every other option visibly changes your paperwork.
Not just Microsoft fonts
The cause is an oversized legacy spacing table, not the brand. Older Open Sans builds fail the same way.
The fix that lasts
Change every affected font in your templates to Calibri Light. It keeps the security update in place, and it survives every future Windows update.
In MYOB AccountRight: Setup › Customise Forms, pick the form type, highlight the form and choose Customise. Use Save Form As to keep a backup, then edit the original in place — your customer cards point at it by name, and a renamed form quietly stops being used.
Then work through it band by band. Header, body and footer do not select together, so “select all” only ever catches the band you are in. Double-click into the data table separately — the column headings carry different font settings from the column contents, and this is the step nearly everyone misses. Finish by checking the ABN block, the amount-in-words line, the tax summary, payment terms, free-text boxes and page numbers, each of which is its own object. Reports are separate again: display the report, then the Insert & Modify tab. Forms live inside the company file, so two company files means doing it twice.
It is all or nothing. One text box left on Calibri anywhere on the form stops the whole document rendering, exactly as before. Always test with a real print rather than a preview — a clean preview proves nothing.
What does not work
These are the things people try first. We are listing them so you can skip them.
Reinstalling the driver
The document never reaches the driver. A brand-new one receives exactly nothing.
Clearing the print queue
The queue is empty because nothing was ever sent to it. Restarting the spooler restarts something that is not broken.
Reinstalling MYOB
The fault is in a Windows component. A reinstall lands you in the same place with an afternoon gone.
Repairing the fonts
The font files are not damaged and never were. They display perfectly everywhere else.
Removing the update does restore printing, and you will find instructions for it online. We do not recommend it as a do-it-yourself step: that update closes two genuine security vulnerabilities, and .NET updates are cumulative, so next month’s rollup brings the same code back under a new number. It is a stopgap for a business with too many templates to re-font today, not a fix — and it should be a deliberate decision with a date attached to reversing it.
Common questions
Almost certainly not. If Word prints to that same printer and MYOB does not, the printer is proven to be working — the document is failing before it is ever sent. Replacing the printer will change nothing.
Barely. Calibri Light is the same typeface family drawn slightly lighter. Side by side you can see it; on an invoice a client receives, nobody notices.
No. Browser-based software prints through your browser, which does not use the broken component, and Word, Excel and Outlook are fine for the same reason. It is desktop software built on .NET that is exposed — MYOB AccountRight, Wolters Kluwer CCH and Crystal Reports–based packages among them.
There is an object you have not found — it only takes one. The usual culprit is the data table, where the column headings carry separate settings from the column contents.
Microsoft has confirmed it as a regression and given it top priority, but as at 21 August 2026 no corrected build has shipped and there is no published date. That is the reason we recommend changing the fonts rather than waiting.
Yes. It is a remote job almost every time: $125 per hour remote, $205 per hour on site. We confirm it is this fault, re-font the templates and test a real invoice before we are done.
Book a Adelaide technician
$205/hr on site, $125/hr remote, no call-out fee and no fix, no fee.
Book OnlineService scope: we diagnose hardware faults and handle batteries, software, data, networking and setup. Physical screen, keyboard, charging-port and hinge replacement we refer to a specialist. Pricing shown is our own published rate, current as at August 2026. Any parts are quoted separately for your approval.