HP LaserJet 3390 All-in-One: wired mono output and one-sided computer capture review

A wired monochrome office MFP with distinct print, copy and scan rules

The HP LaserJet 3390 All-in-One combines monochrome printing, copying and telephone fax with color computer scanning. Its useful arrangement is a compatible USB computer or a wired Ethernet network, a 250-sheet normal paper tray and a 50-sheet document feeder. It suits a documented earlier-office workflow when the actual software and machine remain appropriate for the job.

The exact HP US store identifies Q6500A#ABA and explicitly marks it discontinued. The reviewed US edition requires 110–127-volt, 50/60-Hz mains power. Original tables separately identify 220–240-volt editions and warn against voltage conversion. The precise electrical label on a prospective unit still matters.

A central distinction is easy to miss: automatic two-sided printing and two-sided standalone copying do not establish automatic two-sided computer scanning. The original software technical reference explicitly says its TWAIN and WIA scan drivers do not support duplex scanning. This review therefore qualifies the established computer feeder route as single-sided, even though the control panel has a separate two-sided copy function.

Use the actual USB or network scan installation

Standard interfaces are a high-speed USB host connection and built-in 10/100 Ethernet. The original connection matrix positively supports computer scanning and PC-fax functions for a direct USB installation and for a native network installation. A compatible full software solution is essential; finding a print driver alone does not prove that all capture functions work with a current operating system.

Windows uses HP LaserJet Scan or compatible TWAIN/WIA applications. The historical Mac route uses HP Director and its scan software. Files can be saved to the computer. Optical character recognition requires the separately installed Readiris software rather than being an automatic property of every PDF capture.

Network panel behavior differs from USB. The original reference says the direct Start Scan button launches the USB computer's software, while initiating a scan from the networked device is disabled by default and requires configuration in the scan software. The target computer and required software must be running. Email attachment functions use the computer's compatible mail client; they are not an independent SMTP sending system.

Sharing a USB-connected printer through another computer is also a different arrangement. Other users of that shared print queue do not gain network scanning or fax control. Use the native Ethernet arrangement when those documented network functions are required. Included infrastructure Wi-Fi, Wi-Fi Direct, native AirPrint and Mopria are not established here.

Choose the correct original-document path

The flatbed is explicitly Letter/A4 size and can capture color at up to 1,200 ppi. The much larger interpolated resolution quoted in old software material is not optical detail. A complete Legal original needs the feeder rather than assigning its maximum length to the glass.

The 50-sheet feeder's confirmed Letter, Legal and A4 range supports ordinary single-sided computer files. Its scan instructions load originals face up, top edge first, and adjust the guides. Fragile pages, books and photographs belong on the glass instead of being forced through the rollers.

For standalone copying, the original manual separately documents 1-to-2 and 2-to-2 routines using the control-panel two-sided setting and the feeder. Those produce paper copies. They do not remove the explicitly documented desktop driver limitation. If automatic two-sided scan files are essential, choose a model whose actual computer scan route positively supports that function.

Printing capacity is 250 normal sheets

Tray 2 holds 250 sheets at the original 80 g/m² basis. Tray 1 is a single-sheet manual priority slot, and an additional 250-sheet Tray 3 is optional for the 3390. Neither the single slot nor the feeder's 50 originals is added to ordinary printing capacity; the 3392's included extra tray and stapler are also excluded.

The original main-tray table explicitly lists Letter, Legal and A4, with ordinary paper at 60–105 g/m². The priority path has different media allowances. HP recommends that envelopes use the single-sheet feed and straight-through output path; its envelope guidance limits stock to 90 g/m² and excludes unsuitable windows, clasps and adhesives. Match the actual driver size and type.

Automatic print duplex is included and documented for compatible Windows and Mac drivers, with a 105 g/m² upper-weight warning. Its exact automatic-duplex size subset was not established in the material read here. It can meet a flexible-paper automatic-duplex requirement, but a specifically selected duplex paper size remains unconfirmed rather than borrowing the ordinary feed-size list.

Fax, toner and space need their own checks

The V.34 fax uses a real telephone connection and the proper regional fax cord. Configure the phone arrangement and fax settings; Ethernet or USB carries the computer interaction, not the telephone signal. No blanket VoIP compatibility is promised. These normal fax, copy and scan tasks coexist in the setup without claiming they can all occupy the same paper path simultaneously.

HP declares up to 22 one-sided Letter pages per minute, separately 21 A4, and recommends 1,000–3,000 printed pages monthly. Maximum duty is separately 10,000. Original 49A Q5949A and 49X Q5949X replacement yields are approximately 2,500 and 6,000 pages under ISO/IEC 19752; remaining toner and current running cost are unknown.

Original and current specifications agree on approximately 19.5-inch width and 18.5-inch height but differ on depth and weight, leaving strict bounds for those fields unconfirmed. Allow scanner, feeder and service access. The 3390 is most suitable when wired monochrome output and ordinary capture matter more than unattended two-sided computer scanning.