Printing device

Details Printing device Printing device

2007-08-14

2007-08-14

Chau, Minh (Department: 2854)

Typewriting machines

Including selection of type-face by...

Including error detection

C400S076000, C358S001160, C399S013000

Reexamination Certificate

active

11052048

ABSTRACT:
A printing device includes a function adding unit detachable to the printing device; a display unit for displaying an error message; a detection unit for detecting that the function adding unit is attached to the printing device; and a device control unit for controlling the display unit to display the error message when the function adding unit is not attached to the printing device.

REFERENCES:
patent: 5924802 (1999-07-01), Sakurai
patent: 6625402 (2003-09-01), Takemoto
patent: 7031012 (2006-04-01), Serizawa

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