Typewriting machines – Including control of format and selection of type-face by...
Patent
1993-03-10
1995-05-09
Wiecking, David A.
Typewriting machines
Including control of format and selection of type-face by...
400 74, 395116, G06F 1300
Patent
active
054134196
ABSTRACT:
A printer which comprises a buffer memory for temporarily storing therein new print data, a full dot memory for holding therein a dot-developed print data in a dot pattern on a page basis, a buffer memory management table for managing the state of the print data of the buffer memory on the page basis, and a control means. The control means, when it is desired to store the new print data in the buffer memory, judges whether or not a page of the new print data is the same as a page of print data whose printing is not completed or being discharged. When the control means determines that the page of the new print data is the same as that of the print data being discharged, the control means stores the new print data in the buffer memory immediately after the dot development of the print data of the buffer memory on the full dot memory is completed. When the control means determines that the page of the new print data is not same as that of the print data being discharged, the control means waits until the print data of the buffer memory is printed and the discharging of the printed sheet is completed, after which the control means stores the new print data in the buffer memory. When a paper jam is detected and the above decision is the same page, the recovery of the paper jam is carried out from the print data of the full dot memory; while when the above decision is not the same page, the recovery is carried out from the print data of the buffer memory.
Fujisaki Hiroo
Oami Michiyoshi
Hitachi , Ltd.
Kelley Steven S.
Wiecking David A.
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