The Xerox B310 toner, shared with the B305 and B315 multifunction printers, is the standard capacity Xerox 006R04376 (about 3,000 pages). Xerox also makes a high capacity 006R04377 (about 8,000 pages) and an extra high capacity 006R04378 (about 20,000 pages). All three work with a separate 013R00690 imaging unit rated at about 40,000 pages.
This guide covers which printers take the 006R04376, how it compares with the larger cartridges, what the imaging unit does, what Xerox's "Use & Return" label means, and how to replace the cartridge.
Xerox B305, B310 and B315 supplies at a glance
| Part number | What it is | Rated life |
|---|---|---|
| Xerox 006R04376 | Standard capacity black toner | ~3,000 pages |
| 006R04377 | High capacity black toner | ~8,000 pages |
| 006R04378 | Extra high capacity black toner | ~20,000 pages |
| 013R00690 | Imaging unit (drum, not toner) | ~40,000 pages |
Toner yields are Xerox's declared yields under ISO/IEC 19752 at about 5% page coverage. Imaging unit life is approximate and depends on job length. Part numbers are the ones Xerox lists on its US store.
Xerox B305 and B315 toner: the same cartridge as the B310
The B310 prints only; the B305 and B315 add scanning and copying. All three share the same toner cartridges and imaging unit, so the Xerox B305 toner and Xerox B315 toner are exactly the same parts as the B310's, and spares can be shared between machines in one office.
One common mix-up: the smaller Xerox B225, B230 and B235 belong to the same generation but use different cartridges (006R04399, 006R04400 and 006R04401) and a different imaging unit. A 006R04376 will not fit them, and their cartridges will not fit a B310. Match the full part number on your old cartridge, not the "B-series" name.
006R04376 or a bigger cartridge: which Xerox B310 toner to buy
All three cartridges print with the same quality; only the amount of toner changes. Here is roughly how long each lasts:
| Pages per month | 006R04376 (~3,000) | 006R04377 (~8,000) | 006R04378 (~20,000) |
|---|---|---|---|
| 300 | about 10 months | about 2 years | more than 5 years |
| 1,000 | about 3 months | about 8 months | about 20 months |
| 2,500 | about 5 weeks | about 3 months | about 8 months |
Bigger cartridges cost less per page. At Xerox's own US list prices in late October 2026, the 8,000-page 006R04377 worked out roughly 22% cheaper per page than the 006R04376, and the 20,000-page 006R04378 roughly 44% cheaper. The trade-off is a much larger upfront spend and toner that sits in the printer for a long time at low volumes.
- Choose the 006R04376 if you print up to about 500 pages a month, want a spare on the shelf without tying up budget, or expect to replace the printer within a year or two.
- Consider the larger cartridges once you regularly print more than about 1,000 pages a month; the per-page saving and the fewer swaps start to matter.
Yields assume about 5% coverage, roughly a page of plain business text. Logos, shaded forms and bold reports use more toner; our explainer on ISO page yield shows how to adjust the estimate.
The 013R00690 imaging unit
The B305, B310 and B315 keep the toner separate from the imaging unit, Xerox's name for the drum assembly. The 013R00690 is rated at about 40,000 pages, which is around thirteen 006R04376 cartridges, five 006R04377 cartridges or two 006R04378 cartridges. A new toner cartridge never includes an imaging unit.
Replace the imaging unit when the printer reports that it is near the end of its life, or when gray background, repeating marks or streaks continue after you have installed a fresh toner cartridge. Ratings assume average job lengths, so lots of one-page jobs shorten its life. The roles of the two parts are explained in toner cartridges vs drum units.
Use & Return, region codes and the part number on the box
On its US store, Xerox labels the B305/B310/B315 toner cartridges "Use & Return": each cartridge is intended for a single use and then for return to Xerox for recycling. Xerox also sells different part numbers for some printers in other parts of the world, and its compact B- and C-series printers check the region programmed into the cartridge; Xerox's support documentation for the closely related C230 describes a "Replace Cartridge, Printer Region Mismatch" message when the two do not match.
For a printer bought in the US:
- Buy the US part numbers listed above.
- Check the end label of the box: Xerox branding, the exact part number and the UPC barcode. The US 006R04376 carries UPC 095205068672.
- Expect a factory-sealed box with the cartridge in its own sealed bag. A loose cartridge, a relabeled box or a number not listed for the B310 is a reason to stop.
How Xerox numbering works across its other lines, including metered supplies, is covered in our Xerox toner part number and capacity guide.
How to replace the toner on a B305, B310 or B315
- Check the remaining level before you order; our guide on how to check toner levels covers Xerox printers.
- When the printer asks for a new cartridge, open the front door.
- Remove the empty toner cartridge as shown in the illustrations inside the printer.
- Unpack the new 006R04376, remove all packing material and shake it gently from side to side to loosen the toner.
- Insert the new cartridge until it clicks into place, then close the front door.
- Confirm on the control panel that the printer recognizes the new cartridge and returns to Ready.
If you take out the imaging unit during the swap, keep it out of direct light and put it back promptly. Wipe up spilled toner with a cloth, never a vacuum cleaner. The B305/B310/B315 user guide shows the exact release points for your model.
Genuine vs compatible
Compatible and remanufactured cartridges are sold for this family. Some work well, but quality and real-world yield vary by maker, and a cartridge whose chip does not match the printer's region or firmware may be rejected. If a printer is using a third-party cartridge, Xerox's troubleshooting advice is to contact that cartridge's supplier first. A genuine Xerox cartridge delivers the declared ISO yield and is supported directly by Xerox. GS TONER sells the 006R04376 brand new and factory sealed, with free US shipping and same-day dispatch on orders placed before 2 PM ET.
Recycling the empty cartridge
Do not put empties in household trash. Xerox's US supplies recycling program takes back genuine Xerox cartridges: up to five items can go back in the new cartridge's box with a return label printed from Xerox's site, 5 to 30 items fit an Eco Box, and many Staples stores accept toner cartridges. Details are on the Xerox supplies recycling page.
The short version
- B305, B310 and B315 share one toner family: 006R04376 (~3,000 pages), 006R04377 (~8,000) and 006R04378 (~20,000).
- The 006R04376 suits light to moderate printing and spares; above about 1,000 pages a month, larger cartridges cost less per page.
- Plan one 013R00690 imaging unit (~40,000 pages) for roughly every thirteen standard cartridges.
- The B225/B230/B235 use different cartridges; always match the full part number.
Other genuine Xerox cartridges are in our Xerox best sellers collection, and our cartridge finder helps if you are unsure which model you have.
Frequently asked questions
What toner does the Xerox B310 use?
The Xerox B310 uses the 006R04376 standard capacity (about 3,000 pages), 006R04377 high capacity (about 8,000 pages) or 006R04378 extra high capacity (about 20,000 pages) black toner cartridge, together with the separate 013R00690 imaging unit.
Do the Xerox B305 and B315 use the same toner as the B310?
Yes. Xerox lists the same toner cartridges and the same 013R00690 imaging unit for the B305, B310 and B315, so spares can be shared between them.
How many pages does the Xerox 006R04376 print?
About 3,000 pages, Xerox's declared yield under ISO/IEC 19752 at roughly 5% page coverage. Pages with heavy graphics, shading or bold fonts reduce that number.
Is the imaging unit included with Xerox B310 toner?
No. The 013R00690 imaging unit is a separate supply rated at about 40,000 pages, so it is replaced far less often than the toner cartridge.
Does 006R04376 fit the Xerox B230?
No. The B225, B230 and B235 use 006R04399, 006R04400 or 006R04401. Xerox lists 006R04376 only for the B305, B310 and B315.
How do I recycle an empty Xerox B310 toner cartridge?
In the US, return genuine Xerox cartridges through Xerox's supplies recycling program, either in the new cartridge's box with a return label printed from Xerox's site or in an Eco Box for 5 to 30 items, or drop them at a participating Staples store.
