What Toner Does the HP LaserJet Enterprise 600 M602 Use?

Quick answer: The HP LaserJet Enterprise 600 M602 uses HP 90A (CE390A, about 10,000 pages) or the high-yield HP 90X (CE390X, about 24,000 pages). The M602n, M602dn and M602x all take the same cartridges.

HP is phasing out the single 90X: Staples now sells it only as a two-pack. Castle Ink sells compatible 90A and 90X, plus a 90X MICR cartridge for check printing.

CastleScore · October 2026

69/100 — Situational

HP LaserJet Enterprise 600 M602 (Scored on HP M602 data)

Pillar (weight)ScoreWhat it is based on
Owner ratings (28%) — We couldn't find a retail rating pool for the M602.
Expert reviews (20%) — No published numeric expert score we could verify.
Cost per page (18%) 98 About 0.6¢ per page with our compatible HP 90X (24,000 pages).
Reliability (18%) 85 No recurring fault pattern turned up in the sources we found; a long-life workhorse with a 225,000-page maintenance kit
Features (11%) 74 Print only, 52 ppm, 600 sheets standard (1,100 on the M602x), Gigabit Ethernet, color display. Two-sided printing built in on the dn and x.
Value (5%) — Not scored without owner ratings

Limited data: We could not find enough owner ratings or published expert scores for this printer, so those weights are spread across the other pillars. With neither owner ratings nor a published expert score, we cap this printer at 69 (Situational) until better data is available.

Retired. Sold refurbished (about $450–$540).

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 27, 2026. It is not a customer review. See every ranked printer or how the score works.

The toner, pictured

Our own compatible toner, photographed in-house.

What Toner Does the HP M602 Take?

Cartridge HP part no. Approx. yield Castle Ink option
HP 90X Black (high yield) CE390X ~24,000 pages Castle Ink 90X, $149.95
HP 90A Black CE390A ~10,000 pages Castle Ink 90A, $85.95
HP 90X MICR (check printing) CE390X (MICR) ~24,000 pages Castle Ink 90X MICR, $269.95

Yields are HP's figures as listed by HP, Staples and CDW. MICR toner is only needed if you print checks.

What Does M602 Toner Cost per Page?

On October 27, 2026, Staples listed HP's 90A at $272.99 (about 2.7¢ a page) and the 90X two-pack at $813.99, and CDW listed a single 90X at $442.99 (about 1.8¢ a page). Our compatible 90X is $149.95, about 0.6¢ a page, and our 90A is $85.95.

Will Compatible Toner Work?

Yes. HP's cartridge-blocking reports center on newer printers, and we know of no lock on the M602. Some HP Enterprise firmware adds a "Cartridge Policy" setting in the printer's web page; if your M602 shows it and it's set to allow HP cartridges only, switch it off before installing compatible toner. HP's warranty doesn't cover damage caused by non-HP supplies.

How Do I Replace the Toner in the M602?

  1. Open the top cover or cartridge door.
  2. Pull the old cartridge out by its handle.
  3. Unpack the new cartridge and rock it gently side to side to spread the toner.
  4. Pull the sealing tape tab straight out, then remove any shipping clips.
  5. Slide the cartridge in along its guides until it seats, then close the cover.

These are the standard steps for this type of printer. If your model's door label shows a different order, follow the label.

Which Other Printers Use HP 90A and 90X?

HP lists the 90X for the LaserJet Enterprise 600 M602 and M603 and the M4555 MFP. Staples also lists the 90A for the M601 and M603. Don't buy 90X for an M601: HP doesn't list that printer for it.

What M602 owners ask

These are the questions that come up most for this printer on retailer Q&A pages, manufacturer support communities and owner reviews, answered in our words.

Do the M602n, M602dn and M602x use different toner?

No. All three take HP 90A (about 10,000 pages) and 90X (about 24,000 pages).

Can I add two-sided printing to an M602n?

Yes, with HP's optional duplex accessory, which may need a firmware update. The dn and x models have it built in.

Is a single 90X still sold?

Staples lists the single 90X as discontinued and sells a two-pack ($813.99); CDW still lists the single at $442.99.

When does it need a maintenance kit?

HP rates the maintenance kit (CF064A for 110-volt printers) at about 225,000 pages.

M602 quirks worth knowing

  • It prints up to 52 pages a minute and is rated for up to 225,000 pages a month.
  • Standard paper capacity is a 100-sheet multipurpose tray plus a 500-sheet tray; the M602x adds a second 500-sheet tray.
  • It has Gigabit Ethernet and USB; wireless was an option.
  • New units are retired, and refurbished M602s sell for roughly $450 to $540.

Frequently Asked Questions

What toner does the HP M602 use?

HP 90A (CE390A) or high-yield HP 90X (CE390X).

How many pages does a 90X print?

About 24,000 pages.

Does the M602 use the same toner as the M603?

Yes. Both take 90A and 90X.

More HP ink guides: HP LaserJet Pro M402dn · HP LaserJet M209dw · HP LaserJet MFP M234dw · find any printer

Replacing it? Our highest-rated alternatives

Sources

Ratings and prices were checked on October 27, 2026 and will change over time.

Need replacement HP toner cartridges? Shop HP toner cartridges at Castle Ink. Compatible, up to 70% less than OEM, and shipped the same day when you order by 4 PM ET.

Written and reviewed by — Castle Ink CEO since 2005; more than 20 years of experience in the printer supplies and e-commerce industry..