Guide refreshed 16 October 2026. Model and part-number examples on this page come from an older list and are not a current stock or service promise.

A laser printer’s toner cartridge holds the powder used to create the image; the drum unit transfers that image onto the page. Some printers combine toner and drum in one cartridge, while others use separate replaceable parts. Replacing the wrong one can leave the fault unresolved, so check the printer’s message and manual first.

How to tell what may need replacing

Low toner or replace toner: check the toner cartridge code and the printer’s supply instructions.
Replace drum or drum life warning: check the drum-unit code and follow the printer’s reset/replacement instructions. Do not reset a counter unless the drum has actually been replaced.
Print defects: streaks, repeating marks or faded areas can have several causes. Use the printer’s maintenance guide before buying parts; the drum may not be the cause.
Separate components: note whether your model uses one colour drum or individual units, and whether the part is a drum, toner, belt or waste container.

Older model and part references

The original article listed examples including Brother DR2000/DR2100/DR3000/DR3100/DR3200/DR3300, HP C9704A/Q3964A/C4195A, Canon 701 and selected Oki and Lexmark part numbers. These historic references are provided only as clues for identifying what you have; they do not verify current availability, yield, price, remanufacturing options or fit for every printer revision.

Before ordering, compare the complete printer model and exact part number with the supplier’s compatibility information. Drum-life ratings are manufacturer estimates under stated test conditions and actual results vary with use and print coverage.

Ask us to check the part

Send the full printer model, the code from the drum or toner label, and (if possible) the printer’s warning message using the cartridge enquiry form. You can also search online product listings for printer drums.

For help from this website, call 0161 738 1066, Monday to Friday, 9am–6pm. The separate Manchester branch number is 0161 738 1465. Confirm current price, stock and delivery arrangements before ordering.