What causes fault code PKG-012 (Inkjet Printer Head Fault)?

Print head clogged — ink dried in nozzles. Ink supply empty or low. Print head to product distance incorrect — moved during operation. Ink type incompatible with product surface. Encoder signal lost — printer doesn't know when to fire

How do I fix fault code PKG-012?

Run print head cleaning cycle — most printers have auto-clean function. Check ink supply — refill if low. Verify print head distance to product — typically 5-15mm per spec. If dried ink, soak print head in manufacturer-recommended solvent. Check product encoder signal — verify pulse count on test print. Replace print head if cleaning doesn't restore print quality

Inkjet Printer Head Fault

PKG-012

Inkjet date/lot code printer reports print head fault. Codes may be missing, illegible, or not printing.

low packaging

packaging inkjet printer code date

Probable Causes (ranked)

Print head clogged — ink dried in nozzles
Ink supply empty or low
Print head to product distance incorrect — moved during operation
Ink type incompatible with product surface
Encoder signal lost — printer doesn't know when to fire

Fix Steps

1 Run print head cleaning cycle — most printers have auto-clean function
2 Check ink supply — refill if low
3 Verify print head distance to product — typically 5-15mm per spec
4 If dried ink, soak print head in manufacturer-recommended solvent
5 Check product encoder signal — verify pulse count on test print
6 Replace print head if cleaning doesn't restore print quality

Field Trick

If the printer works when you clean it but clogs again in an hour, the ink is bad or the environment is too dry. Check ink expiry date and add humidity control.

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