SKU:

HEWC4129X-MCR

Printer Brand:

Hewlett Packard

OEM Number:

C4129X

Ink Color:

High Yield Black

Page Yield:

10,000 Pages

Printer Type:

Laser Cartridge

Condition:

New Compatible

Frequently Asked Questions

What exactly is a MICR version of the 29X?

It is the C4129X cartridge — the HP 29X, rated at 10,000 pages and priced at $95.77 — filled with magnetic MICR toner instead of standard toner. The encoded line on a check is printed with this toner so bank scanners can read it magnetically. The body, fit and yield class are unchanged; only the fill is specialised.

Can I be promised the checks will pass at my bank?

No — and you should be suspicious of any cartridge sold with that promise. Whether a check scans depends on your bank's reader, your check stock, and the condition of your printer alongside the toner. Print a short test batch first and let the bank scan it; that confirmation, from the bank itself, is the only guarantee that means anything.

Why use a wide-format machine for checks at all?

Because in many offices the LaserJet 5000 is simply the dependable workhorse already on site, and its paper handling takes check stock without fuss. If it is the machine your accounts team trusts, a MICR supply turns existing hardware into the check station — no second printer to buy or maintain.

Should the MICR cartridge stay in the printer permanently?

Most offices swap it in for check runs and keep a standard cartridge for everyday wide-format work — drawings, ledger sheets, tabloid pages. The swap is quick, and dedicating the MICR unit keeps the specialised toner for the job that requires it.

What if the MICR line prints but looks patchy?

Do not run live checks on patchy output. Rock the cartridge side to side to level the toner, print a single test check, and scan-verify it. Magnetic readability cannot be judged by eye — a line that looks acceptable can still read badly — so the retest matters.

What warranty stands behind a specialist cartridge like this?

The same store cover as our standard range: a 1-year warranty and 1-year free returns, with terms on our shipping and returns page. We ship from warehouses in Illinois, Pennsylvania, Georgia and California, and support runs Monday through Friday, 9 AM to 5 PM CST. The warranty covers the cartridge itself, not a bank's scanning decision.

About This HP 29X MICR Cartridge

This compatible C4129X MICR cartridge brings check printing to the 5000 platform, in the specialist selection of our HP toner cartridges range. It is a high-yield supply with a single disciplined instruction attached: test a batch, get the bank's confirmation, then run your checks with the question already answered.

This is a platform-wide part: LaserJet 5000, LaserJet 5000dn, LaserJet 5000gn, LaserJet 5000n, LaserJet 5100 and LaserJet 5100dtn all take the 29X (C4129X) MICR cartridge. The range around it includes the standard-yield 29A (C4129A) single cartridge and the 29X (C4129X) two-pack.