4×6 Direct Thermal Labels (4-roll pack)
The exact size and stock this printer is calibrated for, matched shipping labels.











Printronix · Industrial Printers
Ships by 3pm CT when ordered today.
Tell us what you ship with and we'll confirm this printer works with it.
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Mon–Fri, 10am–6pm CST · (312) 416-1518 · Contact · Ask TPO Buddy
About this printer
Refurbished Printronix SL4M / T4M (listed as SL / TM4) 4-inch industrial thermal printer — 10 ips at 203 dpi, 4.1″ print width.
This is the 4-inch SmartLine / T4M platform: direct thermal or thermal transfer, PGL, snap-in 203 or 305 dpi heads. TPO specs the common 203 dpi / 10 ips head. Standard 4×6 labels fit.
Public manufacturer specs (inferred from the OEM sheet — not TPO-tested on this unit):
Ships tested and refurbished with a 2-year warranty and free install support. Optional 3-year coverage is a separate add-on (SKU tpo-3-year-extended-warranty). Questions? Call (312) 416-1518.
Specifications
| Metric | What It Means | Your Advantage |
|---|---|---|
| Print methodBoth | Can run direct thermal or thermal transfer depending on media and options. | Match media (and ribbon, if TT) to this method. |
| Resolution203 DPI | Print density. 203 dpi is standard shipping; 300/600 dpi is finer text and barcodes. | Higher DPI costs speed on Datamax I-46xx class machines. |
| Print speed10 ips | How fast the printer can move media (OEM max). | Industrial 10–12 ips desks outrun a 4 ips LP2844 on bulk batches. |
| Max print width4" | Widest media this model can print. | 4″ class takes standard 4×6 shipping labels. |
| Print languagePGL | Command language the host/app speaks (ZPL, EPL, DPL, IPL, ESC/POS, DYMO, …). | Match this to your software — or call (312) 416-1518. |
| Typical media4x6 DT or TT | Stock this class is built for. | Do not load DYMO cassettes in a Zebra, or 4×6 rolls in a 2-inch/receipt printer. |
| Media width4″ industrial web (SL4M/T4M class) | Label + liner width this model can track (OEM). | 4×6 shipping stock is 4″ wide — this class can take it. |
| Max roll OD8.0″ OD on 3″ core | Largest media roll that fits the cabinet (OEM). | Industrial 8″ OD stock — not a desktop 5″ roll. |
| Core3″ industrial | Cardboard tube the OEM lists for this printer. | TPO 3″ industrial 4×6 packs fit this class. 1″ desktop ZP-450 rolls do not. |
| Media sensorsGap, notch, hole, or black mark | How the printer finds the gap or black mark. | Die-cut 4×6 uses the gap sensor; black-mark stock uses the reflective sensor. |
| Ribbon (TT)450 m on 1″ core | Thermal-transfer ribbon from the OEM sheet. | Needed only in thermal-transfer mode. Direct-thermal 4×6 shipping labels skip ribbon. |
| Warranty2-year included | Parts and labor on refurbished printers from TPO. | Optional 3-year add-on SKU at checkout. Not a 5-year upgrade. |
This 4-inch thermal printer is meant for shipping-label stock. Compatible sizes when listed:
Direct thermal printers do not use ribbon. Thermal transfer models need ribbon for durable labels. Match media to this printer's width and method.
Software Compatibility
Pick your software to confirm this printer before you buy. Answers come from public specs, unknown means call us.
Popular picks
Select your software type, then your app
Model Comparison
Here's how it stacks up against close alternatives when compare products are set on this SKU.
Currently Viewing
Printronix SL / TM4 Industrial Thermal Label Printer
$299.99
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Zebra ZP-450 Thermal Label Printer ZP450 + Driver & Manual
$329.99
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CognitiveTPG Advantage DLXi DBD42-2085-G1E Thermal Label Printer
$369.99
| |
|---|---|---|---|
| Print Method | Both | Direct Thermal | Direct Thermal |
| Best For | ? | Occasional shipping, budget setups | Labels that need to last outdoors or in cold storage |
| Print Speed | 10 ips | 6 ips | 5 ips |
| Connectivity | USB · Ethernet | USB | USB |
| Ribbon Required? | No | No | For transfer mode |
| Warranty | 2-year included | 2-year included | 2-year included |
| Viewing This Model | View Zebra ZP-450 Thermal ... | View CognitiveTPG Advantag... |
Drivers
Open the Drivers page for this model, or download the zip if we have it listed.
Call us / we will confirm the installer for this product. We do not show a download unless the catalog has a match. Contact us or call (312) 416-1518.
Helpful resources
Accessories & supplies
Accessories matched to this printer, add what you need before checkout.
The exact size and stock this printer is calibrated for, matched shipping labels.
High-volume fanfold stock for busy shipping desks, no roll changes mid-batch.
Extra reach for desks where the printer sits farther from the computer.
Battery-powered companion for printing labels at pickup windows or on the road.
FAQ
Quick answers before you add to cart.
Every unit passes a full functional test on intake, print quality, connectivity, and mechanical parts, then a second test right before it's packed and shipped. You'll get an intake report noting exactly what was checked. This isn't a "used, as-is" listing.
Both cover parts and labor. The 2-year is included free with every printer. The 3-year extended warranty is an add-on at checkout if this printer runs regularly in a business.
Use the compatibility checker on this page when shown. Pairings are inferred from public specs, not a TPO-tested guarantee. Call (312) 416-1518 (Mon–Fri 10am–6pm CST) before you buy if you are unsure.
Use direct thermal 4×6 (or the sizes in Compatible Media) for direct thermal desks. Thermal transfer models need ribbon. Confirm width in Specs.
Every printer includes free install support by phone or email for the life of the printer, not just a return window. Most setups take about 10 minutes. Start with Setup Studio, or call (312) 416-1518 (Mon–Fri 10am–6pm CST).
Ask for an RMA within 30 days of receipt. A restocking fee applies. The returns page has the fees and what we cannot take back.
Orders placed before the daily cutoff (shown live in the buy box) ship the same day on business days. You'll get tracking as soon as it leaves our warehouse.