Abstract: An ink heating device, which is incorporated in an inkjet printing apparatus, includes: a planar heating member bonded in a state where one surface of the planar heating member is thermally bonded to an outer surface of an ink tank storing ink; an elastic member, having a heat insulation property, is provided on the other surface of the planar heating member and presses the planar heating member against the ink tank; and a hardware processor that performs heating control on the planar heating member in a stepwise manner according to a stop time of a main body of the printing apparatus at a time of starting the main body of the printing apparatus.

Abstract: An ink heating device, which is incorporated in an inkjet printing apparatus, includes: a planar heating member bonded in a state where one surface of the planar heating member is thermally bonded to an outer surface of an ink tank storing ink; an elastic member, having a heat insulation property, is provided on the other surface of the planar heating member and presses the planar heating member against the ink tank; and a hardware processor that performs heating control on the planar heating member in a stepwise manner according to a stop time of a main body of the printing apparatus at a time of starting the main body of the printing apparatus.

Abstract: An image recording device includes a recorder, a reader and a hardware processor. The recorder records an image on a recording medium. The reader reads, with an imaging element, a surface of the recording medium and a surface of a predetermined reference member. The hardware processor calibrates the reader for a value to be detected by the imaging element, based on a reading result of the reading of the surface of the reference member. Further, the hardware processor performs the calibration in at least one of: a case where a type of the image to be recorded on the recording medium satisfies a predetermined image type condition; and a case where a predetermined reading influence factor which affects a reading result of the reading of the surface of the recording medium satisfies a predetermined reading influence factor condition.

Abstract: An image recording device includes a recorder, a reader and a hardware processor. The recorder records an image on a recording medium. The reader reads, with an imaging element, a surface of the recording medium and a surface of a predetermined reference member. The hardware processor calibrates the reader for a value to be detected by the imaging element, based on a reading result of the reading of the surface of the reference member. Further, the hardware processor performs the calibration in at least one of: a case where a type of the image to be recorded on the recording medium satisfies a predetermined image type condition; and a case where a predetermined reading influence factor which affects a reading result of the reading of the surface of the recording medium satisfies a predetermined reading influence factor condition.

Abstract: An image processing apparatus for executing an image processing of print data and instructing a printing to a printing apparatus having a consumable supply, comprising: a control section which is configured to monitor an exchange operation of the consumable supply and to execute a data rewriting of a nonvolatile memory by using a volatile memory to be used for the image processing.

Abstract: There is described a color image forming method, a color image forming apparatus, and an image forming program, which make it possible to reduce the amount of colorant consumption to a level lower than ever. The color image forming apparatus includes: a first image data converting section to replace achromatic color components included in color image data constituted by color components of Yellow (Y), Magenta (M), Cyan (C) with a first color component of Black (Bk); and a second image data converting section to replace at least a part of any one or any two of residual color components of Yellow (Y), Magenta (M), Cyan (C), which still remain after the achromatic color components are replaced with the first color component of Black (Bk), with a second color component of Black (Bk).

Abstract: There is described a color image forming apparatus, which makes it possible to increase the printing velocity. The apparatus includes: an image processing section to generate either first-processed image data or second-processed image data; an image forming section to form a first color image based on the first-processed image data at a first image forming velocity in a first image forming mode or a second color image based on the second-processed image data at a second image forming velocity in a second image forming mode onto the sheet; and a control section to conduct a changeover operation between the first image forming mode and the second image forming mode. A maximum amount of total toner consumption in the second image forming mode is smaller than that in the first image forming mode, and the second image forming velocity is faster than the first image forming velocity.

Abstract: There is provided a device in an accessory apparatus, which is connected with a main apparatus, for protecting a motor driver IC and a logic circuit in the accessory apparatus from the application of a voltage higher than the rated voltage for these circuits, when the connection between the main apparatus and the accessory apparatus (optional apparatus) which receives power from the main apparatus enters an abnormal state. Therefore, even when the power of the main apparatus is ON, the accessory apparatus can be attached to, or removed from, the main apparatus without damaging the circuits. The device comprises an inexpensive element, such as a rectifying diode or a Zener diode.

Abstract: The present invention provides a process for preparing 5,6,7-trinor-4,8-inter-m-phenylene PGI.sub.2 derivative using 3a,8b-cis-dihydro-3H-5,7-dibromocyclopenta[b]benzofuran as a starting material, as well as compounds which are intermediates.

Abstract: The present invention provides a process for preparing 5,6,7-trinor-4,8-inter-m-phenylene PGI.sub.2 derivative [VII] using 3a,8b-cis-dihydro-3H-5,7-dibromocyclopenta[b]benzofuran (1) as a starting material, as well as compounds of the formulae (8) and (11) which are intermediates for the preparation of the compound of the formula (1).