SKU:

CAN3784B003AA-COM

Printer Brand:

Canon

OEM Number:

3784B003AA

Ink Color:

Magenta

Page Yield:

19,000 Pages

Printer Type:

Laser Cartridge

Condition:

New Compatible

Frequently Asked Questions

The red in our logo prints orange on the C2225 — where do we look first?

At the magenta. A logo red is built from magenta and yellow, and when the magenta cartridge — part number 3784B003AA — runs low, reds slide toward orange and skin tones in printed photos take on a flushed look, while blues and greens stay true. On the imageRUNNER C2020 and ADVANCE C2020, C2030 and C2225, a test page with a solid red block settles it: rusty or uneven output means this is the cartridge to change.

How is office-document work different for magenta than photo work?

Office documents use magenta in bursts — a red chart series, a branded heading, a highlighted table — rather than the continuous demand of photographs. So in a typical department the GPR-36 magenta's 19,000-page rating is consumed in steps, and its real life depends on how much of the department's output carries red content. Two offices with identical page counts can empty this cartridge months apart.

What does the magenta cost per page?

The same as its colour siblings: $71.06 against a rating of up to 19,000 pages, roughly 0.37 cents per page at standard coverage. All three GPR-36 colour singles share that price and rating — only the black sits higher, at $78.02 — so there is no price penalty whichever colour your machine asks for first.

Could the problem be the yellow instead?

It can contribute. Weak reds usually start with magenta, but a tired yellow muddies them further. The test page separates the two: check the solid red block for strength, then the yellow block on its own. Change the cartridge the evidence names — each GPR-36 unit is independent, and swapping both on suspicion wastes a part-used cartridge.

What part number should be on the order for the magenta?

3784B003AA. The family sequence is black 3782B003AA, cyan 3783B003AA, magenta 3784B003AA and yellow 3785B003AA. With one digit between them and near-identical boxes, quoting the full code is the reliable way to get magenta rather than whichever unit sits at the front of the shelf.

What protection is included if the cartridge is faulty?

A 1-year warranty and 1-year free returns, the same cover as every compatible cartridge we sell. Support is available Monday to Friday, 9 AM to 5 PM CST if you would like help reading a test page first, and full terms are on our shipping & returns page.

About This Canon GPR-36 Magenta Cartridge (3784B003AA)

A single compatible Canon GPR-36 magenta toner cartridge, Canon part number 3784B003AA, rated at up to 19,000 pages for the imageRUNNER C2020 and the imageRUNNER ADVANCE C2020, C2030 and C2225. It supplies the red component of the GPR-36 colour mix and is replaced independently of the other three cartridges. Priced at $71.06, shipped from IL, PA, GA or CA, and backed by our 1-year warranty and 1-year free returns. The full range is on our Canon page.