You've been printing shipping labels on your inkjet for months. It works, but the ink costs are adding up and you're tired of paper jams at 5pm when orders need to go out.
Maybe it's time for a thermal printer. But they cost $300-500 upfront, and you're not sure if the investment makes sense for your volume.
In this article:
- The real cost comparison: thermal vs inkjet
- Speed and reliability differences that matter
- When upgrading to thermal makes financial sense
- Setting up thermal printing with MyPost Business
- Which thermal printer should Australian sellers buy?
The real cost comparison: thermal vs inkjet
Let's break down the actual numbers for an Australian seller shipping 20 orders per day.
Inkjet printing costs
Your trusty Canon or HP inkjet has a hidden cost structure:
- A4 label sheets: $15 for 100 sheets (15 cents per sheet)
- Black ink cartridge: $40, prints roughly 300 pages
- Colour cartridge: $45 (even for black and white, many printers use it)
Per label cost breakdown:
- Label sheet: 15 cents
- Ink usage: 13-27 cents (depending on coverage)
- Total: 28-42 cents per label
For 20 labels daily, that's $5.60 to $8.40 per day.
Over a month (25 business days): $140 to $210.
Thermal printing costs
Thermal printers have a simple cost structure:
- Thermal labels: $25-40 per roll of 500 labels
- No ink, toner, or ribbons needed
Per label cost: 5-8 cents.
For 20 labels daily, that's $1 to $1.60 per day.
Over a month: $25 to $40.
Monthly savings: $115 to $170.
The maths is clear. You're saving over $100 per month on consumables alone.
The hidden time cost
There's another cost that doesn't show up in your accounting software: time.
Inkjet label printing workflow:
- Load label sheets (30 seconds)
- Print dialog, select right paper size (20 seconds)
- Deal with misalignment, reprint (1 minute when it happens)
- Clear paper jam (5 minutes, happens weekly)
- Replace ink mid-batch (10 minutes, always at the worst time)
Thermal printing workflow:
- Send to printer
- Label comes out ready to stick
At 20 orders daily, you're saving 10-15 minutes per day just on the printing process.
That's 5 hours per month you get back.
Speed and reliability differences that matter
Print speed comparison
Inkjet printers: 10-15 seconds per label (including warmup)
Most inkjets need to wake up, align the print head, then slowly feed the paper through. If you're printing labels one at a time as orders come in, each one takes the full warmup cycle.
Thermal printers: 2-3 seconds per label
Thermal printers are always ready. No warmup. The label feeds through at a consistent speed every time.
For batch printing 50 labels:
- Inkjet: 8-12 minutes
- Thermal: 2-3 minutes
Reliability when you need it most
Monday at 4:30pm. Australia Post pickup is at 5pm. You have 30 orders to get out.
With an inkjet:
- Paper jam on label 15 (there goes 5 minutes)
- "Low ink" warning on label 20 (do you risk it or change now?)
- Labels coming out slightly skewed (will the scanner read them?)
With a thermal printer:
- Load the orders
- Done
No ink levels to monitor. No paper jams from sticky label sheets. No alignment issues.
Weather and durability
Australian weather isn't kind to inkjet labels.
Inkjet labels in rain: The ink runs. Even with "water-resistant" ink, a proper downpour will smudge the barcode. Your package sits at the depot because it can't be scanned.
Thermal labels in rain: Completely waterproof. The image is created by heat, not ink, so water can't make it run.
For parcels that might sit on a delivery truck in Queensland humidity or Melbourne rain, thermal labels are simply more reliable.
When upgrading to thermal makes financial sense
The break-even calculation
A decent thermal printer costs $350-500. Let's use $400 as our baseline (a Dymo 4XL or similar).
Monthly savings on consumables: $115-170 Time saved: 5 hours at $25/hour = $125 Total monthly value: $240-295
Break-even point: 1.5 to 2 months
Volume thresholds that make sense
5-10 orders per day: Thermal starts making sense. You'll break even in 3-4 months and the convenience factor is significant.
10-20 orders per day: Clear winner. Break even in under 2 months. The time savings alone justify the switch.
20+ orders per day: Essential. You're losing money every day you don't switch. The reliability and speed become critical at this volume.
Under 5 orders per day: Stick with inkjet for now, unless the convenience is worth the upfront cost to you.
Seasonal sellers consideration
If you're a seasonal seller who does 100 orders in December but 5 per month otherwise, consider:
- Buy a thermal printer in October
- Save hundreds during peak season
- Use it year-round for the convenience
The peak season savings often cover the entire printer cost.
Setting up thermal printing with MyPost Business
MyPost Business exports labels as A4 PDFs, but thermal printers need 4x6 (100x150mm) format.
You have three options:
Option 1: Manual cropping (free but tedious)
- Open the PDF in Adobe Reader
- Take a screenshot of just the label
- Paste into Word or Paint
- Resize to 100x150mm
This works but takes 3-5 minutes per label. Fine for low volume, painful at scale.
Option 2: PDF cropping software
Several apps can auto-crop MyPost labels:
- Adobe Acrobat Pro (if you already have it)
- PDF editing software with batch processing
- Dedicated label cropping tools
Better than manual but still requires opening each PDF and processing it.
Option 3: Automated solutions
Tools like LabelChop watch your downloads folder and automatically:
- Detect MyPost Business PDFs
- Crop to 4x6
- Send directly to your thermal printer
No clicking, no manual steps. Labels print as soon as you download them from MyPost.
Which thermal printer should Australian sellers buy?
Best overall: Dymo LabelWriter 4XL
Price: $380-450 Why it's good: Reliable, widespread support, handles all Australian carrier labels Downside: Proprietary label sizes can be more expensive
The 4XL is the Toyota Camry of thermal printers. It just works. MyPost, Sendle, CouriersPlease, Australia Post - all formats work perfectly.
Budget option: MUNBYN 4x6 Thermal Printer
Price: $180-250 Why it's good: Great value, uses standard labels, decent speed Downside: Less local support, may need driver fiddling
If you're shipping 5-20 orders daily and want to test thermal printing without a big investment, MUNBYN gets the job done.
Professional choice: Zebra ZD420
Price: $500-700 Why it's good: Commercial grade, incredibly reliable, fast Downside: Overkill for most home sellers
If you're pushing 50+ orders daily or running a fulfilment operation, Zebra is the industry standard for good reason.
High-volume option: Brother QL-1110NWB
Price: $350-450 Why it's good: Wide format option (can do 4x6 and other sizes), network printing Downside: Larger footprint
Great for offices with multiple people printing labels or if you also need to print wide format labels for other purposes.
Label buying tips for Australian sellers
Where to buy thermal labels:
- Officeworks: Convenient but pricey ($45-60 per roll)
- eBay bulk sellers: Better value ($25-35 per roll when buying 10+)
- Direct from manufacturers: Best price but usually minimum orders
Label types:
- Direct thermal: No ribbon needed, most common for shipping
- Thermal transfer: Needs ribbon, longer lasting (unnecessary for shipping)
Stick with direct thermal for shipping labels. They're cheaper and last plenty long enough for parcels.
Making the switch
The numbers are clear. If you're shipping more than 10 orders per day, a thermal printer pays for itself quickly through ink savings alone.
Add in the time saved, the reliability improvements, and the fact that your labels won't smudge in the rain, and the decision becomes even easier.
The biggest barrier isn't the cost. It's the setup friction with MyPost Business's A4 PDF format.
That's exactly why we built LabelChop. It eliminates the PDF cropping hassle completely. Your thermal printer investment starts paying dividends immediately, not after you've figured out the workflow.
Ready to make the switch? Grab a thermal printer that fits your volume, set up automatic label cropping, and never buy another ink cartridge for shipping labels again.
Your future self at 5pm on a busy Monday will thank you.