Printer with printing drum
AssigneesCanon Kabushiki Kaisha, Canon Denshi Kabushiki Kaisha
InventorHiroshi Takahashi
Life of this patent
Estimating the term…
Abstract
A table calculator provided with printer is disclosed. The printer comprises a printing drum having a group of odd digit types and a group of even digit types arranged shifted from each other in the direction of line. A pulse generator generates timing pulses corresponding to the odd digit types on the drum. Another pulse generator generates timing pulses corresponding to the even digit types. When any selected type on the drum comes into the printing position, the drum is stopped to effect printing. Printing is carried out on the basis of the timing pulse corresponding to even digit when odd digit type is to be printed. When even digit type is to be printed, the printing is carried out on the basis of timing pulse corresponding to odd digit.
Claims2
A printer comprising:
- a printing drum comprising a group of odd digit types and a group of even digit types, said odd digit types and said even digit types being disposed so as to come into a printing position alternately;
- means for generating timing a pulse for indicating the position of said odd digit type on said drum;
- means for generating a timing pulse for indicating the position of said even digit type on said drum;
- means for stopping said drum when any selected type or said drum comes into the print position;
- and
- means for carrying out printing following a predetermined time measured from detection of a timing pulse of even digit type which is positioned just before an odd digit type when the odd digit type is to be printed, and for carrying out printing following the predetermined time measured from detection of a timing pulse of odd digit which is positioned just before an even digit when the even digit is to be printed.
Dependencies are inferred from the claim text.