Reprographic Systems

Market Segment Discussion
Reprographic Systems refers to copiers and printers and covers the range from inexpensive $300 LaserJet printers to million dollar plus sophisticated, high speed color printing systems.

Systems utilizing magnetic toner require precision toner roll transfer assemblies. These may be individual rolls with multiple pole magnetic patterns or, in larger systems, rolls comprised of numerous magnets separated by filler material.

Magnetic materials utilized in these transfer rolls include:

Injection molded ferrite

Extruded ferrite

Sintered neodymium-iron-boron

Compression bonded neodymium-iron-boron

OTHER USEFUL LINKS Products:

Precision Magnetic Assemblies

Permanent Magnets

Precision rolled alloy strip and foil

Technical Assistance:

Application Information

Selecting permanent magnet materials

Contact the Magnetics Technology Center

Getting in touch with us:

Reprographic assemblies containing magnets

Click picture to enlarge.

Magnetic toner copier and printing systems are widely utilized by everyone from the casual PC user to the most sophisticated graphic artist to reproduction of graphics art by professional printing companies. Arnold is a major supplier into this industry, supplying injection molded magnet rolls, magnets used in assemblies and construction of the complete toner assembly modules. Contact us to find out how we can assist you.

Applications Engineering
Whether your company has sophisticated in-house magnetics design capabilities or a more modest facility, our Applications Engineers are ready to support your efforts through the entire product life cycle including:
• Conceptualization • Initial design • Prototyping • Design optimization • Pre-Production trials • Validation testing support • Production issues • Cost reduction activities • Next generation designs Additional capabilities: • Magnetic field mapping • Magnetic properties testing	Magnetic Toner Roll Assembly Field Map

Design Assistance

Applications engineers at each of our manufacturing locations can assist you with your needs, such as.

Magnetic modeling: 2D, Radially symmetric, 3D, Temperature dependence
Design relationships to your Hall sensor and application Specifications
Complete analysis includes studying the effects of the operate and release point of the Hall sensors compard to the magnetic output waveform

Quadrature encoders
Switches and latches
Ratiometric / Linear Halls
Pulse counters

Complex holding force calculations
Insert and overmolding designs
Manufacturability analysis
Measurement capability to verify design

Application Example

Reprographic Toner Transfer Rolls span the range from single, injection molded components to assemblies of 100 magnets or more.

In all cases, the magnetic pattern is complex and must be precisely reproduced. This requires the highest quality magnets coupled with precision assembly. Arnold Magnetic Technologies Corp.has been providing precision assemblies for over 30 years.

Magnet materials may be high energy extruded flexible ferrite such as from Flexmag Industries or Injection Molded Neo such as from the injection molded factory of Arnold Magnetics Ltd. near Shenzhen, China.