
Sato Printhead M8490s M8490se 300dpi
SATO THERMAL PRINTER HEAD
M8490S M8490SE PRINTHEAD 600DPI
Product Description

Replacement thermal printhead for the Sato M8490S and M8490SE, 300 dpi. Both machines use the same head specification, so one part number covers the pair. It is a direct-fit replacement once a head starts leaving voids or uneven density across the label.
Principal Benefits
Why it matters
One part number covers both machines
The M8490S and M8490SE share a head specification. If you run both, a single spare covers either machine instead of two stock lines.
300 dpi holds fine label detail
At 300 dpi small text, serialized codes and narrow barcodes stay inside scanner tolerance, which is the first thing to fail as a head wears.
Even density across the full label width
Heat is applied uniformly along the element, so labels printed at the edge of the web match those in the centre instead of fading on one side.

Built for continuous duty
The 8400 series normally runs production volumes. This head is specified for sustained operation rather than occasional desktop use.
Works with the media you already run
No change to ribbon grade or label stock. The wax, wax-resin and resin combinations already qualified on these machines carry straight over.
About Codewel
About Codewel

A printhead and media supplier
Codewel supplies Sato printheads alongside the ribbons and labels that run through the same machines, so a head replacement and a media restock can travel in one shipment. Most orders start from a part number or a photo of the machine plate, and we confirm resolution and connector orientation before anything leaves.








Why Buy Printhead From Us
What you get
Identification from a photo, not a guess
Many 8400-series machines have been in service long enough that the head label is worn off. Send a photograph of the head or the printer data plate and we match it before quoting.
Genuine or compatible, your choice
Some sites can only fit genuine parts; others are keeping older machines running on a budget. We supply both and state clearly which one you are getting.

Run on a printer before it leaves
Every head is checked on compatible equipment and packed in anti-static material inside a rigid box, because a bent connector in transit is the usual cause of a dead-on-arrival part.
Consolidated export packing
Heads, ribbons and labels ship together under one set of documents, which is usually the difference between one freight charge and three.
Before you order
Send the part number from the old head, or a photo if the label is gone. We confirm resolution, connector type and orientation, quote with freight options, and ship once you have signed off.
FAQ
What dpi is this Sato printhead?
300 dpi (about 12 dots per mm), the standard resolution for the M8490S and M8490SE.
Will it fit both the M8490S and the M8490SE?
Yes. Both models use the same head specification, so this single part covers the pair.
How do I know it is the head and not the ribbon?
Voids that stay in the same place on every label point to the head. A faint, even print across the whole label usually points to the ribbon or the print settings.
Can I fit it myself?
Yes. On these models the head is a field-replaceable part: release the latch, disconnect the ribbon cable, swap the head and refit.
Do you stock ribbon for these machines?
Yes, in wax, wax-resin and resin, in the widths the 8400 series takes. It can go in the same box as the head.
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