Our close association with, and commitment to, the electrophotography industry continues with innovative designs for voltmeters, charger-roller power supplies, and low cost, high performance OEM sensors. These products are used in an electrostatic image-forming process. Electrophotography is utilized in laser printers, copiers, fax machines and many other printing devices.(corona charging, roller charging, etc.), while electrostatic voltmeters (stand-alone or on-board) are used in electrophotography quality control and frequently provide feedback for process adjustment. Trek also supplies products for precise toner charge-to-mass ratio measurements.
Developer Roller Measurements
Trek’s DC feedback electrostatic voltmeters provide precise measurements of the surface potential of developer roller surfaces as controlled in electrophotographic processes.
Trek Product: 341B, 370, 347
Corona Charging/Discharging Supplies
Trek’s high voltage power supplies/amplifiers/controllers are used to:
Primary Charge Roller
Trek’s charge amplifies are used to control the charging level of a primary charge roller to uniformly charge a photoconductive surface. There supplies provide an ability to control a DC offset level with an added AC current level.
Trek Product: 615A-1, 615-3, 615-10
Developer Roller Supplies
Trek’s high voltage amplifier/power supplies are used to control DC, AC, or AC with DC offset voltage levels to control the voltage level of a developer roller to provide highly efficient toner transfer from the developer roller to a photoconductive surface.
Trek Product: 609E-6, 5/80
Toner Charge-to-Mass Ratio Measurement System
Trek’s charge to mass measurement system is able to accurately measure the charge to mass ratio of either dual component or single component developers.
Trek Product: 212HS
Examples of Measurement: