









Formax AP4 Digital Address Printer
The Formax AP4 inline digital address printer runs up to 26,000 envelopes/hr. Dealer pricing, financing & nationwide service from Mid-State Litho.
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Details & specifications
AP4 High-Volume In-Line Digital Address Printer
The AP4 High-Volume Digital Address Printer is engineered for production mail environments that demand speed, accuracy, and flexibility. Processing up to 26,000 #10 envelopes or 34,000 postcards per hour with variable print resolutions up to 600 x 600 DPI, the AP4 delivers sharp, professional addressing at high speed.
A robust 2 pen + 4 pen + 2 pen stitched print head design with a 4" H x 50" L imaging area allows you to print the address, return address, indicia, and taglines in a single pass. With an in-line transport deck, up to 16GB of job storage, on-screen ink monitoring, and support for pieces up to 1/2" thick, the AP4 is a workhorse for busy mailrooms, commercial printers, and lettershops.
Key Features
- 🔹 High-volume production - up to 26,000 #10 envelopes/hour or 34,000 postcards/hour
- 🔹 2 pen + 4 pen + 2 pen stitched print head with three independent print head banks
- 🔹 Large imaging area up to 4" H x 50" L for address, return, indicia, and taglines in one pass
- 🔹 Variable print resolutions up to 600 x 600 DPI for crisp text and graphics
- 🔹 Handles media from 5" x 3" to 50" x 15" and up to 12.7mm / 1/2" thick
- 🔹 Duty cycle rated up to 1,250,000 pieces per month for demanding production schedules
- 🔹 Thermal inkjet technology with 8 high-capacity cartridges and on-screen ink monitoring
- 🔹 Color touchscreen with adjustable backlight and intuitive navigation
- 🔹 Up to 16GB of job storage for repeat work and saved setups
- 🔹 Designed for in-line use with feeders, transport decks, and existing mailing equipment
- 🔹 Adjustable print head height to accept media up to 1/2" thick
- 🔹 USB 3.0 and Ethernet (LAN) connectivity for modern workflows
Applications
- ✉️ Direct mail addressing on #10 envelopes, flats, and postcards
- 📬 Addressing for statements, invoices, and transactional mail runs
- 🏢 In-plant and corporate mailroom production for recurring campaigns
- 💌 Fundraising, nonprofit, and membership renewal mailings
- 🏫 School, university, and municipal communications and notices
- 📦 Fulfillment and distribution applications printing addresses on thicker pieces up to 1/2"
Specifications
| Print technology | Thermal inkjet, 8 high-capacity cartridges* |
| Addressing speed | Up to 26,000 #10 envelopes/hour; up to 34,000 postcards/hour |
| Print quality | Up to 600 x 600 DPI |
| Imaging area | Up to 4" H x 50" L (102 x 1,270 mm) |
| Material size | Min: 5" L x 3" W (127 x 76 mm) Max: 50" L x 15" W (1,270 x 381 mm) |
| Material thickness | Up to 12.7 mm / 1/2" |
| Duty cycle | Up to 1,250,000 pieces per month |
| Memory | Up to 16GB |
| Print head layout | 2 pen + 4 pen + 2 pen stitched design; three independent print head banks |
| Feeder capacity (optional) | Up to 500 #10 envelopes with AP12 Heavy Duty Friction Feeder |
| Print orientation | Left to right |
| Software / OS | Drivers for Windows 7 and higher |
| PC interface | USB 3.0, Ethernet (LAN) |
| Dimensions (L x D x H) | 34" L x 25" D x 12" H (86 x 64 x 31 cm) |
| Weight | 96 lbs (44 kg) |
| Power | 115VAC, 50/60 Hz |
* Printer ships with 4 AP22 high-capacity ink cartridges. Additional cartridges may be purchased separately.
Available Options
- 📌 AP12 Heavy Duty Friction Feeder - holds up to 500 envelopes
- 📌 AP4F stand-alone system with AP4 and AP12 Feeder
- 📌 AP14 tabletop riser stand for ergonomic configuration
- 📌 Bulk mailer software for address management and postal preparation
- 📌 Thermal inkjet cartridges and spot-color options to match your workflows
Benefits for Your Operation
- Keeps production mail moving with high throughput and a robust duty cycle.
- In-line configuration reduces manual handling and improves registration accuracy.
- Wide imaging area consolidates multiple print elements into a single pass.
- Touchscreen controls and job storage shorten setup time and simplify repeat jobs.
- Handles a broad range of sizes and thicknesses for versatile job changeovers.
- Modular options let you scale from standalone feeding to full production systems as volume grows.
AP4 vs AP4F: which model fits
The Formax AP4 on this page runs up to 26,000 #10 envelopes per hour as an inline digital address printer, priced at $23,195. The AP4F is the companion model that adds an integrated friction feeder for standalone high-volume feeding, so it suits shops running address jobs off-line rather than in an inline finishing setup.
If you feed envelopes from an existing inline system, the AP4 is the right fit. If you need built-in feeding for standalone runs, ask us to compare the AP4F throughput tier and pricing before you order.
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Frequently asked questions
How fast is the Formax AP4?
The AP4 addresses up to 26,000 #10 envelopes per hour, or up to 34,000 postcards per hour.
What can the AP4 print?
It prints variable-data addresses, barcodes, and graphics inline at up to 600 x 600 DPI, across an imaging area up to 4 inches high by 50 inches long.
What media sizes and thicknesses does the AP4 handle?
Material runs from 5 x 3 inches up to 50 x 15 inches, at thicknesses up to 1/2 inch (12.7 mm).
Does Mid-State Litho install and service the AP4?
Yes. Mid-State Litho provides nationwide service and financing on the Formax AP4.
How is the AP4 different from the AP4F?
The AP4F adds an integrated friction feeder for standalone high-volume feeding. The AP4 on this page is the inline model. Contact us to compare the two throughput tiers.
We deliver it, install it, train your team and keep it running.
This is not a drop-ship. Our factory-trained technicians install on site, train your operators, and back it with same-day and next-day service across Michigan and the Great Lakes.
Install & train
On-site setup and operator training included.
Same / next-day service
Fast response across the Great Lakes.
Precision machining
Replacement parts fabricated in-house.
Financing
Lease and purchase options available.