Digital Sign Technologies

Printhead maintenance, testing, and industrial AI.

Hardware for the print floor, software for the operations behind it, and private AI infrastructure for companies that can't send their data to the cloud — designed and supported from Mississauga, Ontario.

Print Head Doctor printhead cleaning and recovery system
Printhead recovery

Print Head Doctor

printheaddoctor.com

Our flagship printhead cleaning and recovery system. A full model range from the portable PHD-M up to the PHD18, covering water-based, solvent and UV printheads.

  • Digitally controlled pressure & vacuum
  • Touchscreen, Wi-Fi and remote control
  • Unlimited program memory per head type
  • Recovery reports with photos
printheaddoctor.com
Print Head Tester unit
Diagnostics

Print Head Tester

printheadtester.com

Know whether a printhead is good before you install it. Accurate nozzle and jettability assessment in about three minutes — as-new, after storage, or after recovery.

  • Modular design, one ink module per ink
  • Single-head and multi-head (PHT-M) models
  • Objective data for service and repair decisions
printheadtester.com
EasyTag shipment dashboard on desktop, tablet and phone
Shipping & orders

EasyTag

easytag.ai

AI-powered shipment and order management in one dashboard. EasyTag pulls every UPS, FedEx and DHL shipment together, reads your orders and invoices with AI, and flags carrier charges you shouldn't be paying.

  • Full inbound & outbound shipment visibility
  • Automated data entry from documents and photos
  • Overcharge and service-level error detection
easytag.ai
WiMeter energy monitoring dashboard on laptop and tablet
Energy & equipment

WiMeter

wimeter.ai

Connected energy meter and critical systems monitor. WiMeter clamps onto any breaker panel, measures every circuit in real time, and uses AI on the power profiles to warn you about equipment trouble before it becomes downtime.

  • 28 channels, 1-phase and 3-phase, up to 600 V
  • Up to 4 temperature sensors (±0.1 °C, −50…+125 °C)
  • Proactive malfunction alerts by app, SMS and email
  • Per-machine running cost in dollars or kWh
  • Non-invasive install in about 30 minutes
wimeter.ai
Space Rigs on-premises private AI appliance on a desk
Private AI

Space Rigs

spacerigs.ai

On-premises private AI appliances. A turnkey box that runs capable AI models and a private knowledge system built from your own documents, emails and procedures — with nothing leaving your building.

  • Your data stays on your hardware
  • Private knowledge base over your own files
  • Set up and supported by DST
spacerigs.ai
Industrial inkjet press in operation
Web store

DigitalSignTech.net

digitalsigntech.net

Our online store and company site. Browse Print Head Doctor models, adapters, recovery fluids and accessories, and order directly.

  • PHD systems, adapters and spare parts
  • Recovery and cleaning fluids
  • Company information and support
digitalsigntech.net
26 yearsin industrial inkjet
~3 minutesto a full printhead test
Water · Solvent · UVfluid systems supported
Worldwideshipping & support

How they work together

Test. Recover. Re-test.

The Print Head Tester and Print Head Doctor are designed as a pair — so you never guess whether a printhead is worth saving, or whether a recovery actually worked.

Test

Assess the printhead on the Print Head Tester and get objective nozzle and jettability data in about three minutes.

Recover

Run the appropriate cleaning and recovery program on the Print Head Doctor, with controlled pressure, vacuum and the right fluid.

Re-test

Put it back on the tester to confirm the recovery — and produce a report with pictures for your records or your customer.

Get in touch

Address
Digital Sign Technologies Inc.
3585 Laird Rd., Unit 8
Mississauga, ON  L5L 5Z8
Canada
Telephone
+1 (905) 820-8833
WhatsApp / Mobile
+1 (905) 782-6274
Email
support@digitalsigntech.net
Pickup hours
Monday – Friday, 9:00 am – 5:00 pm

Where to find us in 2026

  • LOUPE Americas 2026 Chicago, USA · September 15–17, 2026 · Booth 1103
  • Pack Expo 2026 Chicago, USA · October 18–21, 2026 · Booth W-40032