What Ink Does the HP DeskJet 3634 Use?
Last Updated:Quick answer: The HP DeskJet 3634 uses HP 63 (standard) or HP 63XL (high-yield) black and tri-color ink cartridges. The XL versions are the only ones that make financial sense. We stock remanufactured HP 63XL black and tri-color cartridges that keep the original HP chip.
The DeskJet 3634 is a compact home all-in-one from HP's 3600 series. Its main appeal was the 430-page HP 63XL black cartridge, which is exactly what HP's cartridge merge has changed.
2026 change: HP has merged HP 63 and HP 65 into a single HP 63/65 line. HP says the new cartridges fit every printer that took HP 63, including the DeskJet 3634, but they are rated for fewer pages: about 300 for the 63/65XL black (B7RT5AN) and about 100 for the tri-color (B7RT2AN). There is no XL tri-color in the new line. Older HP 63 cartridges still work.
CastleScore · October 2026
77/100 — Recommended
HP DeskJet 3634
| Pillar (weight) | Score | What it is based on |
|---|---|---|
| Owner ratings (28%) | 78 | 4.00★ average across 408 ratings at Amazon (4.0) |
| Expert reviews (18%) | — | No published numeric expert score we could verify. |
| Cost per page (24%) | 81 | About 5.3¢ per page blended (black + color) with our remanufactured 63XL (430 / 300 pages). |
| Reliability (13%) | 84 | Most-reported problems: wi-Fi drops or can't reconnect. In one case the fix was disabling the router's 5 GHz band; won't pick up paper or reports a false jam, with print jobs stuck in 'Error' |
| Features (12%) | 56 | Print, copy, scan, Wi-Fi. No document feeder, no auto two-sided printing, no fax, no touchscreen. |
| Value (5%) | 80 | Running cost and owner satisfaction |
Limited data: We could not find enough published expert scores for this printer, so that weight is spread across the other pillars.
Discontinued. Retailers list the DeskJet 3630 series as end of life, and we haven't found HP naming a successor. Legacy HP 63 and the new HP 63/65 cartridges both fit.
CastleScore is Castle Ink’s own editorial rating, built from retailer star ratings, expert reviews, real cost per page and owner complaint patterns, checked October 9, 2026. It is not a customer review. See every ranked printer or how the score works.
The cartridges, pictured
HP 63XL 2-packF6U64AN + F6U63AN
HP 63XL BlackF6U64AN · ~430 pages
HP 63XL Tri-colorF6U63AN · ~300 pages
HP 63XL 2-pack
HP 63XL Black
HP 63XL Tri-colorOur own remanufactured cartridges, photographed in-house.
HP DeskJet 3634 Ink Cartridges at a Glance
| Cartridge | Color | Approx. Yield |
|---|---|---|
| HP 63 (F6U62AN) | Black | ~170 pages |
| HP 63 (F6U61AN) | Tri-Color | ~150 pages |
| HP 63XL (F6U64AN) | Black | ~430 pages |
| HP 63XL (F6U63AN) | Tri-Color | ~300 pages |
| HP 63/65XL (B7RT5AN) — new line | Black | ~300 pages |
| HP 63/65 (B7RT2AN) — new line | Tri-Color | ~100 pages |
One thing to know about tri-color cartridges: cyan, magenta and yellow share a single housing. When any one color runs out the whole cartridge is finished, even with ink left in the other two. It is the main reason cost per page on this class of printer looks worse than the sticker price suggests.
Important: HP Has Merged HP 63 and HP 65
HP has consolidated the HP 63 and HP 65 lines into a single HP 63/65 cartridge. HP's own wording is "HP 63 and HP 65 Ink Cartridges are now one cartridge: HP 63/65. Same printer compatibility." No firmware or hardware change is needed.
There is a catch for HP 63 owners. The new HP 63/65XL black (B7RT5AN) is rated at 300 pages, while the legacy HP 63XL black (F6U64AN) was rated at 430 pages. The new tri-color (B7RT2AN) is rated 100 pages against the legacy 63XL tri-color's 300, and there is no XL tri-color in the new line. If you print more than occasionally, it is worth buying legacy 63XL stock while it is still available.
Expect some confusion at retailers while both lines are on sale. Some listings for the legacy 63XL black show 300 pages, which is the new 63/65XL figure. HP rates the legacy 63XL black at about 430 pages and the 63XL tri-color at about 300.
Is the DeskJet 3634 Discontinued?
Yes. Retailers list the DeskJet 3630 series as end of life, and we haven't found HP naming a successor. If you keep yours, both legacy HP 63 and the new HP 63/65 cartridges fit it.
What DeskJet 3634 owners ask
These are the questions that come up most for this printer on retailer Q&A pages, HP's support forum and owner reviews, answered in our words.
Will the new HP 63/65 cartridges work in my DeskJet 3634?
Yes. HP says HP 63/65 has the same printer compatibility as HP 63, and retailer compatibility lists for 63/65 include the DeskJet 3630 through 3634.
Is there a high-yield tri-color in the new 63/65 line?
No. HP lists only a 63/65 tri-color (about 100 pages) and a 63/65XL black. The 300-page 63XL tri-color is now legacy stock.
My 3634 dropped off Wi-Fi and WPS won't reconnect it. What works?
HP suggests resetting the network settings by holding Cancel (X) and Wireless together for about 5 seconds, then setting it up again through HP Smart on a 2.4 GHz network. HP staff say WPS is unreliable on this model, and one owner fixed it by temporarily turning off the router's 5 GHz band.
It won't pick up paper, but there's no jam. What should I try?
HP support recommends a power reset: take out the cartridges, unplug the printer for 2 to 3 minutes, hold the power button for about 30 seconds, plug it straight into a wall outlet and put the cartridges back. Note any E1 to E4 code on the display if it doesn't clear.
Can it print two-sided automatically?
No. Two-sided printing is manual: you turn the stack over when prompted.
DeskJet 3634 quirks worth knowing
- The 3634 is a U.S. variant of HP's DeskJet 3630 series, so 3630-series drivers, manuals and cartridge lists apply.
- The input tray holds only 60 sheets and the output tray 25. It also takes up to 20 sheets of 4x6 photo paper or 5 envelopes.
- It connects by Wi-Fi, Wi-Fi Direct, AirPrint and USB. There is no Ethernet port.
- Retail listings are inconsistent during the changeover. One Staples page for the legacy 63XL black (F6U64AN) says 430 pages in the title and 300 in the highlights, mixing in the new 63/65XL figure.
Frequently Asked Questions
What ink does the HP DeskJet 3634 use?
HP 63 or HP 63XL, in black and tri-color. HP now also sells these as the combined HP 63/65 line.
Is HP 63 or 63XL better?
63XL, comfortably. The standard black holds about 170 pages against roughly 430 for the XL, at nowhere near two and a half times the price.
What is the difference between HP 63XL and HP 63/65XL?
HP merged the 63 and 65 lines into one cartridge. The new 63/65XL black is rated 300 pages, where the legacy 63XL black was rated 430. Same printer compatibility, lower yield.
Can I use non-HP 63XL cartridges?
It is not an HP+ printer, but that doesn't guarantee every non-HP cartridge will be accepted; one owner reported a non-HP tri-color being refused in 2026. Remanufactured cartridges that keep the original HP chip, like ours, are the safer choice.
Why does my color cartridge run out when only one color is empty?
Cyan, magenta and yellow share one housing. When any single color is exhausted the cartridge stops, even with ink left in the other two.
Other printers that use HP 63
HP Envy 4520 · HP OfficeJet 4650 · HP OfficeJet 5255 · HP DeskJet 3630 · HP DeskJet 1112 · HP OfficeJet 3833 · HP OfficeJet 5258 · HP OfficeJet 4655
More HP ink guides: HP OfficeJet 3830 · HP Envy 5000 · HP OfficeJet Pro 8610 · find any printer
Replacing it? Our highest-rated alternatives
- Epson EcoTank ET-2980 (cheapest to run) — CastleScore 90
- HP Color LaserJet Pro 3201dw (laser) — CastleScore 82
- HP OfficeJet Pro 9125e — CastleScore 79
Sources
Ratings and prices were checked on October 9, 2026 and will change over time.
Need replacement HP ink cartridges? Shop HP ink cartridges at Castle Ink. Remanufactured, up to 70% less than OEM, and shipped the same day when you order by 4 PM ET.