Frequently Asked Questions

What is the cheapest way, per page, to buy GPR-51 black?

This 5-pack. The ladder steps down from $71.90 for a single GPR-51BK to $62.66 a cartridge in the 2-pack, $59.58 in the 3-pack, and $57.11 here. At the rated 19,000 pages per cartridge, that is roughly 0.30 cents a black page — the lowest toner cost per page in the GPR-51BK range we sell.

95,000 pages of black — what kind of operation uses that?

A genuinely high-volume one: a central copy room serving a whole building, a production imageRUNNER running jobs all day, or several black-heavy machines drawing from one store cupboard. Five GPR-51BK cartridges total 95,000 rated pages. If that number sounds like more than a year of printing, this pack is bigger than your operation — the 2-pack and 3-pack exist for exactly that reason.

How much does the bulk buy actually save?

Five singles would cost $359.50. This pack is $285.56 — a saving of $73.94, which is more than the price of a whole extra single cartridge. The saving comes from the pack pricing, not from a different cartridge: every unit is the same compatible GPR-51BK rated at up to 19,000 pages.

How should a stock of five be managed?

First in, first out. Keep the cartridges sealed and boxed in a cool, dry store, take from the front of the shelf, and reorder when the fourth goes into a machine — that leaves one full cartridge of buffer, which at this volume is the difference between a routine change and a stopped job.

Does the rated yield hold up on heavy production work?

The 19,000-page figure is measured at 5% page coverage. Production copying with dense solids and heavy graphics covers far more of each sheet and shortens cartridge life accordingly — plan your reorder point from your own meter history rather than the box rating, and the buffer logic above still holds.

What cover do we get on a purchase this size?

The same as on a single: every cartridge carries our 1-year warranty and 1-year free returns, and support runs Monday to Friday, 9 AM to 5 PM CST. A faulty unit in a 5-pack is replaced or refunded under the same terms — bulk pricing does not dilute the warranty.

About This Canon GPR-51 Black 5-Pack

Five compatible Canon GPR-51BK black toner cartridges for imageRUNNER production machines using the GPR-51 family — 95,000 rated pages of black in one box (19,000 per cartridge). At $285.56 the per-cartridge price drops to $57.11, saving $73.94 against five singles. The pack ships from our IL, PA, GA or CA warehouses and every cartridge is backed by our 1-year warranty and 1-year free returns; full terms are on the shipping & returns page. Related cartridges are listed on our Canon page.

This black 5 pack drops into the ImageRunner Advance C250iF, ImageRunner Advance C255i, ImageRunner Advance C255iF, ImageRunner Advance C350iF, ImageRunner Advance C355i, and ImageRunner Advance C355iF. The rest of the GPR-51 family: the GPR-51 4-cartridge set.