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New exceprint thermal printhead for ZD421D 300dpi barcode printer

exceprint

exceprint ZD421D/ZD421D-HC 300dpi thermal barcode printhead P1112640-020/027

SKU CH-6MCB-44H71 MPN ZD421D/ZD421D-HC

300 dpi thermal printhead for ZD421D and ZD421D-HC barcode printers, rated for 50 kilometres of printing

  • Print TechnologyThermal
  • Max Resolution(B&W)300 dpi
  • Sharp 300 dpi thermal prints for clear barcodes
  • 50 km printhead life extends replacement intervals
  • Drop-in fit for ZD421D and ZD421D-HC models
  • Part numbers P1112640-020 and P1112640-027 ensure correct ordering
  • Includes test paper for immediate verification

Replacement Printhead for ZD421D and ZD421D-HC

This thermal printhead is a direct replacement component for Zebra ZD421D and ZD421D-HC barcode label printers. It is designed for operators who need to restore 300 dpi print quality on existing hardware without replacing the entire unit. The part arrives new and includes a test sheet for immediate verification.

Sustained Output at 300 dpi Resolution

The printhead uses thermal technology rated for up to 50 kilometres of printed media before replacement is typically required. It maintains consistent dot placement and density during long roll runs, reducing the frequency of reprints caused by faded or misaligned barcodes. Stable performance across temperature and speed variations supports continuous production schedules.

Compatibility Decided by Part Number

Fitment is confirmed only when the printer requires part numbers P1112640-020 or P1112640-027; the similar reference P1112640-051 applies to the ZD621D 300 dpi model and is not interchangeable. Verify the exact part number on the existing printhead or service manual before ordering to avoid incorrect installation.

Highlights

  • Sharp 300 dpi thermal prints for clear barcodes
  • 50 km printhead life extends replacement intervals
  • Drop-in fit for ZD421D and ZD421D-HC models
  • Part numbers P1112640-020 and P1112640-027 ensure correct ordering
  • Includes test paper for immediate verification

Specifications

ModelZD421D/ZD421D-HC
Part NumberP1112640-020/P1112640-027
Print TechnologyThermal
Max Resolution(B&W)300 dpi

Questions about this item

Does the 300 dpi thermal printhead generate excess heat during continuous all-day printing?

Thermal printheads produce heat only while dots are energised; the exceprint ZD421D/ZD421D-HC head is engineered for sustained 300 dpi output without thermal throttling in normal label runs.

Which printer chassis must I already own for this P1112640-020/027 printhead to install and operate?

This printhead is built for Zebra ZD421D and ZD421D-HC printers; it also fits the ZD621D 300 dpi model, so one of those chassis is required.

Will the 50 km-rated printhead work reliably alongside the original platen roller and electronics in an older ZD421D unit?

Yes, the head matches the factory 300 dpi specification and electrical interface, so it drops into an existing ZD421D without changing rollers or firmware.

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