Patent · US Active

Apparatus and method for thermal printers that employ a battery or other portable power source

US8157340B2 · kind B2 · utility

1Cited by

13References

28Claims

0Family size

Assignee

INTERMEC IP CORP. · US

Inventors

Bruce Morton · Lake Stevens, US
Hans Nordstrom · Mölndal, SE
Börje Gillholm · Kungsbacka, SE

Key dates

Filing date	Dec 28, 2006
Grant date	Apr 17, 2012
Priority date	—
Expiry date	Jan 17, 2031

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB41J2/345
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

A thermal printer includes a capacitor and a power converter operable to step a voltage of a power source, and coupled to charge the capacitor. Printing is controlled based at least in part on a charge state of the capacitor. Delays in charging the capacitor may be avoided where a current line of print data is blank. Operation may be curtailed where the voltage of the power source is below a threshold.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.