How to Set Up and Optimize Costs for Brother MFC-L3720CDW, L3770CDW, and HL-L2350DW: A Step-by-Step Checklist

Who This Checklist Is For

If you've just ordered a Brother MFC-L3720CDW or HL-L2350DW for your office, or you're managing toner replacements on an MFC-L3770CDW, this checklist is for you. I've been procurement manager at a 45-person logistics company for 6 years—handled over $180k in office equipment spend. The steps below will save you both time and money, starting from unboxing to the first 6 months of ownership.

There are 5 steps. Skip one, and you'll likely pay more later—either in setup frustration or hidden costs.

Step 1: Choose the Right Printer Model for Your Workload

Most buyers focus on printer price under $200 and miss the per-page cost that will eat your budget over 2 years. The MFC-L3720CDW is a color laser all-in-one (great for a small team needing occasional color prints). The HL-L2350DW is a monochrome laser, cheaper per page but no color. The MFC-L3770CDW toner is the same system as the L3720—but the L3770 has higher-yield cartridges available.

The question everyone asks: 'Which printer is cheapest?' The question they should ask: 'Which printer has the lowest total cost of ownership (TCO) over 2 years?'

Here's a quick rule of thumb I've built from tracking our own orders:

• If you print less than 500 pages/month in color, go MFC-L3720CDW (buy standard-yield toner).
• If you print mostly black and white, HL-L2350DW—its toner lasts ~1,200 pages at $30 (based on Amazon/Brother official pricing as of Jan 2025; verify current).
• If you need high-volume color, the MFC-L3770CDW with high-yield toner cuts per-page cost by ~40% compared to standard cartridges.

I knew we should calculate TCO from the start, but back in 2022 I thought 'what are the odds the toner will eat our budget?' Well, the odds caught up—we spent $1,600 on replacement cartridges in 9 months because I'd chosen the wrong model. Lesson learned.

Step 2: Set Up WiFi on HL-L2350DW (No Ethernet? No Problem)

The HL-L2350DW doesn't have a touchscreen, so WiFi setup feels like a chore. But here's the thing: most people skip reading the quick setup guide and try to use the WPS button—and then it fails because their office router requires PIN entry.

What to do instead (works every time):

1. Press the 'WiFi' button on the printer until the LED blinks blue.
2. Within 2 minutes, open your router's web admin (usually 192.168.0.1 or 192.168.1.1).
3. Go to 'WPS' settings and choose 'PIN method'—the printer displays an 8-digit PIN on a small printed slip inside the toner compartment. Yes, you have to open the front panel to see it. That's the part 9 out of 10 people miss.
4. Enter that PIN in your router's WPS screen. Done.

The most frustrating part of WiFi setup? The manual says 'press and hold the WiFi button' but doesn't clarify you need a secondary source (the PIN slip). You'd think a single button would be enough, but the router's security protocols won't allow it. After the 3rd failed attempt, I was ready to throw the printer out the window. What finally helped was finding a Brother support forum post from 2019 that explained the PIN trick—and it's still valid for 2025 models.

One more note: if you have a mesh network with multiple access points, connect the printer to the 2.4 GHz band (not 5 GHz). Brother drivers don't always handle 5 GHz well—learned that the hard way with a $150 service call.

Step 3: Calibrate Color on MFC-L3720CDW Before First Print

The MFC-L3720CDW arrives with default factory settings that lean heavy on cyan (common Brother issue). Most people skip calibration and then complain about pinkish skin tones or greenish grayscale. That's a blind spot—they focus on 'it prints' and forget 'it prints correctly.'

Here's the 2-minute fix:

1. Go to Settings → Print Quality → Color Calibration.
2. Run the auto-calibration (takes about 30 seconds).
3. Print a test page. If colors still look off, manually adjust cyan/magenta/yellow by +5% increments until you get neutral grays.

I have mixed feelings about auto-calibration. On one hand, it's free and fast. On the other, some offices skip it because they don't know it exists. I reconcile by making it part of the initial setup checklist—takes less time than a coffee run.

Step 4: Manage Toner Costs for MFC-L3770CDW (the Real Budget Buster)

Let me rephrase what I've learned after tracking 6 years of toner orders: the cheapest printer can be the most expensive machine in your office if you don't manage consumables strategically.

For the MFC-L3770CDW (same toner as L3720CDW), here's the cost breakdown I built into my TCO spreadsheet:

• Standard-yield black toner (TN-221): ~$60, 1,500 pages → $0.04/page.
• High-yield black toner (TN-225): ~$85, 3,000 pages → $0.028/page.
• Standard color each (TN-221C/M/Y): ~$75 each, 1,500 pages → $0.05/page per color.

Three strategies I now use:

1. Buy high-yield black if you print > 500 pages/month—it's 30% cheaper per page.
2. Use 'toner save' mode in printer settings for internal drafts. It reduces toner consumption by ~30% with acceptable quality for most internal documents.
3. Never buy generic toner. I tried once—saved $20 upfront but got streaky prints that required 40 reprints, costing $60 extra in paper and time. That 'deal' cost us $80 net. The vendor who said 'this isn't our strength—here's who does it better' earned my trust for everything else. If you need cheap toner, use Brother's official high-yield—the per-page cost is already competitive.

Oh, and one more pitfall: the MFC-L3720CDW's toner sensor sometimes reports 'low toner' when there's still 15-20% left. Don't replace immediately—keep printing until quality degrades. I ignored that advice once, tossed a cartridge with 180 pages of usable toner. Now I have a 'wait for stripes' rule that saves about $120 per year across 4 printers.

Step 5: Long-Term Maintenance Checklist (Avoid Surprise Costs)

Most offices forget these 3 things, and they eat into the maintenance budget:

• Drum unit replacement: Brother laser printers have a separate drum (DR-222 for the HL-L2350DW, DR-281 for the MFC series). It lasts ~12,000 pages. Mark your calendar! A worn drum causes ghost images—and a service call costs $150+.
• Fuser unit: Typically lasts 50,000 pages. If you see wrinkled or un-fused toner, replace the fuser before a paper jam ruins a production run.
• Firmware updates: Brother releases updates every 6-12 months. Some fix WiFi connectivity bugs (yes, the HL-L2350DW's intermittent dropouts). Check their support site quarterly.

The vendor who said 'this isn't our strength—here's who does it better' earned my trust for everything else. Similarly, I'd rather recommend Brother for what they do well (reliable, cost-effective laser printing) and point you to a specialist for unusual applications like custom label printing on non-standard media. Know the boundaries of your equipment and it'll serve you for years.

Pricing as of Jan 2025; verify current rates on Brother's official site or Amazon. Individual mileage may vary.