Our take
The Flow MFP M577c is an enterprise color multifunction model for offices that handle both printed pages and paper originals. HP maps B5L54A to this exact configuration and rates it up to 40 ppm Letter. The specification combines automatic duplex printing with a 100-sheet single-pass duplex ADF, so double-sided originals can be scanned without manually turning each page. HP recommends 2,000–7,500 pages monthly and lists a 100-sheet multipurpose tray plus a 550-sheet tray. Standard connections include Gigabit Ethernet and USB. Integrated Wi-Fi is not included, and fax is described as optional in the model table, so confirm accessories instead of assuming either feature is standard.
A wired office that scans double-sided documents and needs color copy and print in a higher-volume multifunction workflow..
Avoid it if you need standard built-in Wi-Fi, confirmed included fax, a compact home-office device, or a printer-only workflow with little scanning.
Pros & cons
What could work for you, and what to consider before buying.
What works in its favor
- The 100-sheet single-pass duplex ADF supports two-sided scanning alongside automatic duplex printing.
- HP recommends 2,000–7,500 pages monthly and rates the model up to 40 ppm Letter.
- Gigabit Ethernet, USB and 650 sheets of standard input support a wired shared workflow.
What to weigh up
- Built-in Wi-Fi is not included; HP describes it as an optional accessory.
- Fax is optional in the reviewed configuration table, not confirmed as standard equipment.
- Its enterprise MFP features and paper capacity may be excessive for a light personal routine.
The key details
| Model covered | M577c (B5L54A) |
|---|---|
| Main functions | Color laser multifunction; up to 40 ppm Letter |
| Print output | Automatic duplex printing; 100-sheet single-pass duplex ADF |
| Two-sided printing | Gigabit Ethernet and USB; recommended 2,000–7,500 pages monthly |
Performance figures are manufacturer claims. Source checked October 9, 2026. Regional models and included accessories can differ.
What the features mean for you
A color MFP built around paper workflows
HP identifies the Flow M577c as a color laser multifunction printer with print, copy and scan functions. The Flow designation is relevant to offices that process paper originals as well as produce color output. HP rates it up to 40 pages per minute on Letter paper, a manufacturer rating that can help compare its class but does not guarantee the pace of every document. A team with separate scanners may not benefit from the MFP's document path, while a shared department can reduce handoffs by keeping copying and scanning beside the printer. The exact product number B5L54A is the identity clue to check; features from neighboring M577 configurations should not be assumed automatically.
The duplex ADF changes scan handling
The M577c has a 100-sheet single-pass duplex ADF, and HP documents automatic duplex printing. The feeder can capture both sides of a multipage original in one pass rather than asking an operator to flip the stack or run it twice. That can simplify contracts, packets and double-sided forms. The 100-sheet capacity is substantial, but it still sets a limit on how much can be staged at once. HP's product table distinguishes this document feeder from the printer's duplex path; both matter for a complete two-sided workflow. On a used unit, inspect the feeder rollers and run a double-sided scan before assuming the mechanisms work as described.
Workload and paper capacity suit a department
HP recommends 2,000 to 7,500 pages per month for the M577c. The recommendation is the useful workload planning interval, not the separate maximum duty-cycle ceiling. Standard paper input includes a 100-sheet multipurpose tray and a 550-sheet tray. That combination lets an office keep the common stock ready and use the multipurpose feed for a second supported media type. Capacity does not establish printing cost or the actual remaining life of a refurbished machine. Compare the monthly recommendation with expected team volume, and verify the tray assembly and media limits from the exact manual before using specialty paper or a device with optional accessories.
Ethernet is standard; wireless is an add-on
HP documents Gigabit Ethernet and USB for the M577c, while integrated Wi-Fi Direct and NFC are not included on this exact model. Wireless access requires an optional Jetdirect 2900nw accessory. This distinction affects where the machine can be placed and whether staff can print from mobile devices without a wired network. A buyer who needs Wi-Fi should confirm that the accessory is both present and compatible; the historical candidate title does not prove it. Ethernet suits a fixed enterprise queue, but network setup still depends on local security policy, driver deployment and administrator support. The standard interface facts are not transferable to another M577 suffix without checking its own profile.
Do not treat optional fax as included
HP's M577 configuration table describes fax as optional for the exact M577c, so the model should not be selected as a standard fax machine without confirmation of the accessory or installed module. The reviewed sources likewise do not say that Wi-Fi is built in. That leaves a clear buying checklist: verify the B5L54A label, inspect all included accessories, confirm whether fax is installed, check for the Jetdirect wireless hardware if needed, and review the individual printer's page count and test output. These checks are especially important for a renewed enterprise MFP. The source evidence supports the model's color, duplex, scanning, volume and wired connections without making claims about current stock or seller condition.
What else to compare
If wireless and fax must be standard, compare a color MFP whose exact suffix confirms both. For a wired high-volume print-only queue, a multifunction device may add unnecessary complexity.
Before you buy
Can the M577c scan both sides in one pass?
HP documents a 100-sheet single-pass duplex ADF for this Flow MFP configuration.
Does the M577c include built-in Wi-Fi?
No. HP says integrated Wi-Fi is not included on the M577c; wireless needs an optional Jetdirect accessory.
Is fax standard on the M577c?
HP's configuration table describes fax as optional, so verify whether a specific unit includes it.
What monthly volume does HP recommend?
HP recommends a range of 2,000 to 7,500 pages per month for the M577c.
Where can I check the current price?
Use the Amazon link for current offers. Check the exact model, seller, product condition, delivery, and return terms. This page does not display a live price or confirm stock.
Sources & review basis
We use the following manufacturer documentation for the product features above. Our suitability notes and buying advice are editorial judgments based on those features, not measured performance results.
- HP U.S. Color LaserJet Enterprise M577-series specifications ↗ — checked October 9, 2026.
- HP M577-series U.S. specifications: speed, recommended volume, trays, duplex ADF and fax option ↗ — checked October 9, 2026.
- HP M577 user guide configuration table: M577c interfaces and optional wireless/fax features ↗ — checked October 9, 2026.
The decision
The M577c is strongest where a wired team needs color, duplex printing and one-pass two-sided scanning. Verify optional fax and wireless equipment before buying.
Is it the right fit?
Check the exact model and today’s offers on Amazon.