Patent Number: 6,166,824

Title: Print data processing and compression apparatus

Abstract: In a print data processing apparatus and an input data generating apparatus, image data of an original image generated by a personal computer is binarized in a selected binary mode. The designation number Dn of the selected binarization mode is transmitted with the binary image data to a laser printer. In the laser printer, a data thinning mode-designating number Pn corresponding to the designation number Dn received is set. If the capacity of a development buffer is insufficient, the mode-designating number Pn is read and identified. If Pn="X1", thinning is performed in a first data thinning mode. If Pn="Y2", thinning is performed in a second data thinning mode. If Pn="Z3", thinning is performed in a third data thinning mode. Therefore, if the capacity of a storage device for storing dot image data to be supplied for printing becomes insufficient, dot image data can be reduced in size in an optimal irreversible compressing device selected in accordance with the type of original image.

Inventors: Kadota; Masatoshi (Takahama, JP)

Assignee: Brother Kogyo Kabushiki Kaisha

International Classification: H04N 1/41 (20060101); H04N 1/411 (20060101); G06F 015/00 ()

Expiration Date: 12/26/2017