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Browse Prior Art Database

Automatic Thermal Printer Calibration

IP.com Disclosure Number: IPCOM000048227D
Original Publication Date: 1981-Dec-01
Included in the Prior Art Database: 2005-Feb-08

Publishing Venue

IBM

Related People

Authors:
Dyer, S Stafford, DW [+details]

Abstract

A calibration site is located along the print line of a thermal ribbon printer, preferably at one end, and includes a thermal sensor for detecting ribbon temperature. During calibration operation, a drive pulse having a preselected waveform is applied to the printhead and special logic adjusts the reference level for the normal drive waveform based on the resulting ribbon temperature.