Control logic circuitry for a printing apparatus which records data according to a predetermined color bar code on a moving record medium. The apparatus includes first and second recording stations and a feed mechanism for successively feeding the record medium thereto in equal increments, so as to provide equally-spaced recording locations on the record medium. First and second indicia (parallel bars printed in first and second colors) are recorded on the record medium at the appropriate record...

In converting image data density, image data obtained from an input scanning means are distributed into several groups, and then the logical sum of each of the groups is obtained.

A two-valued image is scanned repeatedly along a single line path at a predetermined constant rate and gated out when a transmitter is ready for transmission. A plurality of memory devices are used cyclically for storing an image signal of successive lines. The signal is gated out for processing and then transmitted. In one aspect of the invention, two-valued image is scanned on a two-line-at-a-time basis to produce first and second discrete sampled signals which are combined one-by-one to form ...

At the transmitting side, a composite signal is synthesized from a color signal of a higher level and a black-and-white signal of a lower level, the composite binary signal is converted into a three-value signal, and this three-value signal is modulated and transmitted. At the receiving side, the received signal is demodulated and converted into a binary signal, its level is detected, and the color signal and the black-and-white signal are separated.

Blank jumping teleprinting method in which a document is read line by line, each line being read point by point, each reading signal corresponding to each point is stored and groups of P signals are transmitted by multiplexing to a point by point writing means organized in groups of P points and in which the white areas of a line are detected, the signals corresponding to these blank areas being jumped during transmission, wherein a line is read once and in a memory with P cells are stored the r...

For each line of scan of an original text, a compressed facsimile signal for transmission, particularly through analog modems, comprises a phase synchronizing signal (S), a control flag signal (F), and a graphic signal section (P) which comprises a succession of signal blocks (P.sub.2 -P.sub.5, P.sub.8) representative of graphic blocks comprising black areas on the original text with signal block representative of graphic blocks, each consisting of a white area, deleted from the succession. A wh...

In scanning an original picture, if a large portion of a scanning line consists of only white (or only black), that portion is not transmitted. Thus, the transmitting time of a picture can be reduced. The facsimile signal consists of a synchronizing signal, a group weight indicator signal and an image signal. The image signals for each scanning line are applied only once to an operational treating circuit, so as to immediately evaluate the image signals for producing group weight indicator signa...

A color referencing system is provided whereby a process color is first defined in terms of percentage levels of a number of base colors to create a standard reference, an ink mixture is experimentally defined for a flat color which corresponds in appearance to the process color and the CIELAB or other color difference equation value is determined by conventional means for that matched color. Such a system is only possible if the process color reference standard can be repeated without error. Th...

A printing method to increase the printing speed of a dot printer. Before printing on the basis of the dot data representative of an original dot pattern showing fonts, graphics and the like, the original dot pattern is converted by converting M (M.gtoreq.3) dots successive in the line direction into N (M>N.gtoreq.2, M.noteq.2N) dots. Then, printing is performed on the basis of the thus converted dot data. In a modification, conversion is performed by converting each dot into n (n.gtoreq.2) s...

A printer having a number of optional features or operations is reconfigurable by software alone. The printer includes an EPROM that stores the software routines defining all of the optional operations of the printer. An EEPROM stores a jump table identifying each optional operation software routine as enabled or disabled. The information stored in the jump table for each enabled routine identifies the location at which the routine is stored in the EPROM; whereas, the information stored for each...