Digital Sign Technologies

Printhead maintenance, testing, AI software and private infrastructure

Hardware for the print floor, AI-powered software for shipping, energy and voice, and private AI and backup infrastructure for companies that keep their data in-house — 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
PHT Nozzle Assessment System web app listing scanned printheads with nozzle counts, scores and pass/fail results
Nozzle analysis

PHT Nozzle Assessment System

app.printheadtester.com

Optional add-on for the Print Head Tester. Scan the nozzle test and the software analyzes every nozzle automatically, flags the missing and misfiring ones, and scores the printhead 0–100 — an objective answer to "is this head ready for production?"

  • Per-nozzle condition map, missing and misfiring counts
  • Overall health score with pass/fail threshold
  • Compare and track heads by serial number over time
Learn more
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
Agent Voice Mode iPhone app showing a live voice call with an AI agent
iOS app

Agent Voice Mode

agentvoicemode.ai

A phone call to the AI agent you already run. You talk, it answers out loud, shows tables, pictures and documents on screen, and gets the job done — with your own agent, your files and your context, not a chatbot of ours.

  • Works with Claude Code, OpenClaw, Hermes or any HTTP endpoint
  • Interrupt mid-sentence, point the camera, switch projects by voice
  • Billed per minute of talk time
agentvoicemode.ai
Space Backup logo on a starfield
Backup software

Space Backup

spacebackup.net

Backup across your own computers. Space Backup copies your important folders to every PC and drive in your office, keeps a dated history, verifies every copy and repairs damage by itself. No cloud, no monthly storage bill.

  • Windows, macOS and Linux, plus an iPhone app
  • Every copy verified end to end, self-healing
  • Free on your local network; Space Relay links remote sites
spacebackup.net
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 next

  • Pack Expo 2026 Chicago, USA · October 18–21, 2026 · Booth W-40032
  • FESPA Global Print Expo 2027 Munich, Germany · April 6–9, 2027 · Hall A3, Stand A62