Renewable Toner 27X C4127X Compatible MICR Toner Cartridge for Check Printing for HP LaserJet Printers 4000 4050<div style="text-align: left;"><strong>[Product Information]</strong><ul><li id="replacementPartsFitmentBullet" class="" data-doesntfitmessage="We're not sure this item fits your " data-fitsmessage="This fits your "><span class="a-list-item"><span id="replacementPartsFitmentBulletInner"><a href="#" class="a-link-normal hsx-rpp-fitment-focus">Enter your model number</a>to make sure this fits.</span></span></li><li><span class="a-list-item"> Lifetime Warranty. We always honor our warranty， even if the Amazon return window has closed. Contact us directly with any questions or issues. </span></li><li><span class="a-list-item"> RT MICR Cartridge with magnetic toner for check printing. </span></li><li><span class="a-list-item"> OEM #: HP 27X / C4127X | High Yield: 10k Pages based on 5% coverage; prints 30k checks @ 3 per page </span></li><li><span class="a-list-item"> For use in HP LaserJet Printers: 4000， 4000n， 4000t， 4000tn， 4000se， 4050， 4050n， 4050t， 4050tn， 4050se </span></li><li><span class="a-list-item"> RT is the manufacturer of this MICR toner cartridge. The listing of any RT product is not intended to imply any endorsement or direct affiliation with the OEM trademark owner. </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41kphBLboRL.jpg" noproxy>