Frequently Asked Questions

When should I actually order the next cartridge for my MF227dw?

Order when the low-toner warning first appears — not when pages start fading. The warning is deliberately early: the 137 in the machine still holds usable toner, but it is your signal that the remaining supply is measured in days or weeks rather than months. Replacements ship from our warehouses in Illinois, Pennsylvania, Georgia and California, so ordering at the warning normally puts the new 137BK on your desk well before the old one gives up. Waiting for visible fading turns a routine order into an urgent one, and urgent orders are the ones that collide with deadlines.

How many pages are left after the low-toner warning shows?

There is no single number, because it depends on coverage. On light text pages the reserve after the warning can stretch to a few hundred sheets; on dense, graphics-heavy pages it may be a few dozen. The cartridge's full rated life is 2,400 pages at standard coverage, and the warning is timed to appear in the final portion of that life. Treat whatever you print after the warning as borrowed time and use it accordingly — fine for everyday jobs, risky for the one print run that cannot wait.

The warning came up but pages still look perfect. Is it crying wolf?

No — it is doing its job. Toner level sensing is approximate, and the message is designed to appear while output still looks normal so that you have a comfortable window to act. Many MF227dw owners print for weeks after the first warning. The mistake is treating those weeks as proof the warning can be ignored indefinitely. A better habit: when the warning shows, put a replacement on order or confirm the shelf spare is actually there. Checking takes a minute; discovering an empty cupboard on the day the cartridge dies takes longer.

Is keeping a spare worth it for a printer that is not used every day?

For most owners, yes. A spare 137BK costs $27.70, stores sealed in a cool dry place without deteriorating, and converts a cartridge change from a multi-day interruption into a five-minute pause. That matters more, not less, for intermittent users: the cartridge tends to run out mid-job after a quiet spell, when nobody remembers the warning from three weeks ago. At about 1.15 cents per page across a 2,400-page yield, the spare is cheap working insurance rather than money sitting idle.

Can I squeeze more life out of the old cartridge while the new one ships?

Usually, yes. Remove the cartridge and rock it gently from side to side several times; this redistributes the remaining toner and often restores even density for a while. Switching everyday printing to toner-save mode stretches what is left further. Neither trick creates toner, so treat the pages they buy as a bridge to the replacement arriving — not as a reason to cancel the order. When pages fade again after a shake, the cartridge has truly reached the end.

What if a new cartridge arrives and turns out to be faulty?

You are covered by a one-year warranty and one-year free returns on every compatible 137 we sell, as set out on our shipping and returns page. If a cartridge underperforms, contact support Monday to Friday, 9 AM to 5 PM Central and we will sort it out. Because stock ships from four warehouses — IL, PA, GA and CA — replacements move quickly.

About This Canon 137 Black Toner Cartridge

This compatible Canon 137 black toner cartridge (137BK) for the imageCLASS MF227dw is built around a simple ownership routine: a 2,400-page rated yield at $27.70 (about 1.15 cents a page), a low-toner warning that gives you a comfortable reorder window, and a sealed spare on the shelf so the window never matters. Owners who order at the warning never meet an empty printer. Every cartridge is backed by a one-year warranty and one-year free returns, with dispatch from our warehouses in IL, PA, GA and CA. Explore the family in our Canon range at Clever Supplies.

One cartridge serves the whole row: the ImageClass MF217w, ImageClass MF227dw, ImageClass MF229dw, ImageClass MF232w, ImageClass MF236n, ImageClass MF244dw, ImageClass MF247dw, ImageClass D570, ImageClass LBP151dw, ImageClass MF212w and ImageClass MF216n. For the other positions and pack shapes, the Canon 137 black cartridge, the Canon 137 black 2 pack and the Canon 137 black 3 pack complete the picture.