Mutoh DG-43345 Printhead

Original Mutoh VJ-1638 printhead assembly (part number DG-43345) for ValueJet series printers; Micro‑Piezo DX7-based printhead, 360 dpi native resolution, 1440 nozzles, compatible with eco‑solvent and mild solvent inks.

Key features

•     OEM Mutoh printhead (DG-43345), designed for ValueJet series printers.
•     Micro‑Piezo (DX7-type) technology with native 360 dpi resolution.
•     8 nozzle lines × 180 nozzles = 1440 total nozzles.
•     Variable droplet size down to 1.5 picolitre (up to ~21 pl).
•     Typical firing frequency: 8 kHz.
•     Ink compatibility: eco‑solvent and mild solvent inks.
•     Recommended damper: DX6 valve dampers; replace head cables when installing a new head.

Full specifications

•     Manufacturer: Mutoh.
•     Part number: DG-43345 (also cross-references DG-43988 / DG-42271 / DG-45279 / DG-42987 in some vendor lists).
•     Technology: Micro‑Piezo (Epson DX7 family style).
•     Native resolution: 360 dpi.
•     Nozzles: 8 lines × 180 nozzles (1440 total).
•     Minimum droplet size: 1.5 picolitre.
•     Maximum droplet size: up to 21 picolitre (variable).
•     Firing frequency: 8 kHz (typical).
•     Ink types: Eco‑solvent and mild solvent compatible.
•     Dampers: Requires DX6 valve dampers.
•     Recommended replacements: Replace head cables and dampers with the head when possible.
•     Condition: New OEM (unless listing as refurbished or compatible).
•     Weight (approx): 1 kg (packaged).

Compatible printers (examples)

•     Mutoh ValueJet 1638, 1638W, 1638WX, 1638X.
•     Mutoh ValueJet 1324, 1617H, 1624, 1624W, 1624WX, 1626UH, 1628X, 1938WX, 2638 and other models listed as compatible by vendors (verify per-model fit before purchase).

Package contents

•     1 × Mutoh printhead assembly DG-43345 (OEM).
•     Protective caps/seals.
•     Packaging box with anti‑static and protective foam.
•     Basic installation instruction sheet (if available).

    Optional: replacement dampers/cables sold separately (list as add‑ons).

Installation notes & best practices

•     Power off the printer and follow Mutoh service manual procedures for printhead replacement.
•     Replace DX6 valve dampers and head cables at the same time for best results; failing to do so can cause communication or ink‑flow issues.
•     Prime new head and run nozzle checks and cleaning cycles after installation.
•     Use recommended eco‑solvent inks and follow ink maintenance schedules to extend head life.
•     If uncertain, have a trained technician perform the replacement to avoid damage.

Warranty, returns & ordering

•     Specify your warranty policy (example: 90 days limited replacement for DOA; no warranty for physical damage or improper installation).
•     Recommend ordering the head as “OEM DG-43345” and confirm printer model compatibility before purchase.
•     Note shipping options and that the item is fragile - insured courier recommended.

Short marketing bullet list (for quick listing view)

    OEM Mutoh printhead — DG-43345.

    360 dpi, 1440 nozzles, 1.5 pl min droplet.

    For ValueJet 1638-series and compatible models.

    Eco‑solvent / mild solvent compatible.

    Ships securely; installation notes included.

Optional technical table (copy into product spec block)