JPS62127170U

JPS62127170U -

Info

Publication number: JPS62127170U
Application number: JP1372986U
Authority: JP
Priority date: 1986-01-31
Filing date: 1986-01-31
Publication date: 1987-08-12

Description

[Brief explanation of the drawing]

第１図はこの発明の一実施例を示すブロツク図
、第２図は動作フローチヤート、第３図は従来例
を示す図である。図において、１……ＣＣＤ、２……画像読み取
り装置、３……２値化回路、４……メモリ、９…
…印字データ有無判断回路、１０……メモリ、１
２……ＣＰＵ、６０……サーマルラインヘツド、
６１……駆動回路、６２……紙送り機構、６３…
…駆動回路、１１０……速度切り換え回路である
。 FIG. 1 is a block diagram showing an embodiment of the present invention, FIG. 2 is an operational flowchart, and FIG. 3 is a diagram showing a conventional example. In the figure, 1...CCD, 2...image reading device, 3...binarization circuit, 4...memory, 9...
...Print data presence/absence judgment circuit, 10...Memory, 1
2...CPU, 60...Thermal line head,
61... Drive circuit, 62... Paper feeding mechanism, 63...
. . . drive circuit, 110 . . . speed switching circuit.

Claims

[Scope of utility model registration request]

An image reading means for reading an image through a solid-state reading element, a binarizing means for binarizing the density value of the read image for each pixel, and an image data storage means for storing the image data after the binarizing process. Based on the image data read out, the thermal line head drive means drives the thermal limit head to print one line at a time, and the paper feed mechanism drive means drives the paper feed mechanism to feed the paper one line at a time. In an image forming apparatus including a thermal line printer, there is provided a print data presence/absence determining means for determining the presence/absence of print data for each line from the image data after the binarization process, and the presence/absence determination result is stored as data. a judgment result data storage means; a head drive control means for controlling ON/OFF of the thermal line head drive means according to the judgment result read from the judgment result; and a head drive control means according to the judgment result read from the judgment result data storage means. An image forming apparatus comprising: a paper feed speed switching means for switching the paper feed speed for one line pitch into two stages.