Check preparation method and apparatus incorporating check sum proof entry

A method of issuing a check by a depositor in a bank wherein check processing of the issued check is done by MICR readers without requiring further entry of data on the check after issuance by the depositor, the process comprising the steps of:

• (a) printing a set of checks with MICR characters representing the bank number, depositor account number, and check number wherein the MICR characters are aligned along a designated line of the check to enable reading of the MICR characters during processing at the bank;
• (b) issuing one check by printing thereon the data, payee and check sum in conformance with banking laws to create a valid check obligation to pay check sum on the check when negotiated by the user, wherein the check issuer determines the check sum, date and payee at any time or place;
• (c) printing the check sum in MICR readable characters on the check at the time of issue with a depositor controlled, hand held portable printer wherein the MICR characters are also aligned with the MICR characters representing the bank number, depositor account numbers and check number to enable reading of the MICR characters during processing at the issuing bank so that the issuing bank processing is fully accomplished in MICR characters on the check when the check is presented for payment;
• and
• (d) entering the depositor check sum to the depositor account stored in the printer.