| abstract |
(57) [Abstract] [Purpose] In a color image forming system, a color (spot color) other than yellow (Y), magenta (M), cyan (C) and black (BK) that are usually used for color image recording is also used. It is possible to form a different color image. [Configuration] From the host device side that supplies image data, In addition to Y, M, C, and BK, a palette table in which data defining the use of spot colors (S1 to S4) is developed is supplied to the printer, and image data is selected from the above-mentioned defining data on the palette table The data is sent in the form of data. On the other hand, the printer is provided with heads for Y, M, C, BK, and special colors S1 to S4, and the controller stores the pallet table for each color (50 8) Based on the image data, the drive signal is output to the corresponding head based on the palette table. |