Hello Cindyd.
If you have not already resolved this issue, we suggest you search our online knowledgebase for this product: Phaser 4510N.
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We are trying to print MICR using our existing Phaser 4510N. We can print to the printer using the drivers that are installed, but the MICR does not print. We are using SAP application. We currently can print MICR from our existing set up right now through our AS400 system.