Mirror image printing printhead

Details Mirror image printing printhead Mirror image printing printhead

1991-09-27

1994-05-24

Fuller, Benjamin R.

Recorders

Light or beam recording

Including record receiver or handling means therefor

346154, B41J 245

Patent

active

053153200

ABSTRACT:
A print head operated on a time sharing basis. Print data are transferred from the outside into the print head in synchronization of clock pulses. The print head stores the print data in a shift register, detects input of print data for one print block portion on the basis of the number of clock pulses, then paralleltransfers the print data in the shift register to a latch circuit and at the same time shifts the print block by one block. When high-speed transfer is possible, the print head releases the external central processing unit or the like from the print head itself for a period from the input of print data of one block portion till the completion of the processing of the block. Moreover, the print head realizes mirror image printing by means of reversal of the order of the print blocks in the print head and reversal of print data in print blocks.

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patent: 4477820 (1984-10-01), Moriguchi et al.
patent: 4689694 (1987-08-01), Yoshida
patent: 4706130 (1987-11-01), Yamakawa
patent: 4807047 (1989-02-01), Sato et al.

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