In-line address printer · Formax
Formax AP4
Image area: 3" H × 50" L (see note) · #10 envelopes per hour: 26,000
Listed on the manufacturer's website (source, as of Oct 18, 2026)
Amazon link (affiliate). We confirmed this Amazon listing is the Formax AP4 on Oct 18, 2026. Reviews are Amazon customers' own and are not shown or summarized here.
Where to buy
Machines in this class are mostly sold and serviced through the manufacturer's authorized dealers. Amazon links are affiliate links. We don't show prices; ask a dealer or check the retailer for the current price.
Specifications
| Brand | Formax |
|---|---|
| Model | AP4 |
| Type | In-line address printer |
| Print technology | Thermal inkjet, 8 high-capacity cartridges |
| Print resolution | Up to 600 dpi |
| Image area | 3" H × 50" L (see note) |
| #10 envelopes per hour | 26,000 |
| Postcards per hour | 34,000 |
| Maximum material size | 50" L × 15" W |
| Maximum thickness | 1/2" |
| Feeder | In-line design; optional AP12 heavy-duty friction feeder (up to 500 #10 envelopes) |
| Duty cycle | Up to 1,250,000 per month |
| PC interface | USB 3.0, Ethernet |
| Dimensions | 34" L × 25" D × 12" H |
| Weight | 96 lb |
| Electrical | 115 VAC |
Formax's AP4 spec sheet gives the image area as 3" H × 50" L in its feature list and 4" elsewhere on the sheet; we show the feature-list value.
Formax also lists the AP4F, which is the AP4 bundled with the AP12 feeder; it is included here rather than listed separately.
Values as published by the manufacturer, in its own units. Fields the manufacturer doesn't state are left out rather than estimated. Shown without scores or rankings.
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