Xerox Corporation

Jose R Diaz

Raphael F Bov, Jr

Michael J McVeigh

Lawrence W Meyer

Paul W Eakin

Martin J Curynski

Cindy L Casper

Ana S Nolau

Richard D Szczepanski

George E Marshall

Thomas L Edelman

A security module is operatively disposed at the hardware/software interface within a printing apparatus. The module is disposed along a connection which acts as a medium for command signals to operate the printer hardware, and for status signals to indicate physical conditions within the hardware. The security module facilitates security procedures which control aspects of printer operation, particularly the creation of MICR characters.

Security module for a printing apparatus

A write head magnetizes magnetic-ink characters for a MICR system. A magnetic assembly defines a first pole in a first location and an opposite pole in a second location. A first pole piece and a second pole piece, spaced by a gap therebetween, are provided, the first pole piece disposed adjacent the first location and adapted to conduct a magnetic field from the first pole to the gap. A selectably positionable member is disposed between the second location and the second pole piece, the positionable member being adapted to affect a magnetic field from the second location through the second pole piece to the gap, thereby facilitating selectable alteration of a magnetic field profile across the gap.

Write head for a MICR reader having an adjustable field profile

A customer-replaceable supply accessory for a page printer, such as a toner cartridge or liquid-ink supply, includes a conductor which interacts with connectors within the printer to ensure proper installation of a given type of accessory. The conductor is exposed only within cavities on the accessory which receive springably-mounted extendible members. The extendible members serve to secure the accessory in position within the printer. The conductor is generally not apparent from the outside of the accessory.

Supply accessory for a printing machine with hidden identifier

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Webster, NY, United States of America

Jose R Diaz