Title:
PRINTING DEVICE
Document Type and Number:
Japanese Patent JP2012166493
Kind Code:
A
Abstract:
To provide a battery-driven printing device having stable printing speed and high printing quality.
The printing device 50 driven by a battery 11 includes: the battery 11 for supplying electric power; a constant current control circuit 12 for controlling current supplied from the battery 11; a power supply circuit 13 for converting voltage of the battery 11; and a printing controlling circuit 14 which is operated by output voltage from the power supply circuit 13 and output current from the constant current control circuit 12. The constant current control circuit 12 converts a current value of the battery 11 into voltage and detects it by a plurality of detecting resistors and feeds back the current value to the power supply circuit 13.
Inventors:
KAMEI TATSU
Application Number:
JP2011030530A
Publication Date:
September 06, 2012
Filing Date:
February 16, 2011
Export Citation:
Assignee:
SEIKO EPSON CORP
International Classes:
B41J29/38; B41J2/35; B41J29/46; H01M10/44; H01M10/48; H02J7/00
Attorney, Agent or Firm:
Masahiko Ueyanagi
Osamu Suzawa
Kazuhiko Miyasaka
Osamu Suzawa
Kazuhiko Miyasaka