An information processing device includes an acquisition unit acquiring image data and ink data, the image data being obtained by digitizing, as an image, the fabric before the printing process is performed, the ink data indicating a type of the ink, a storage unit storing derivation data for deriving a recommended parameter for at least one of the pre-processing device and the post-processing device, and a control unit deriving, based on the derivation data, the recommended parameter from the image data and the ink data, wherein the derivation data includes first data and second data, the first data being configured to define a learned model learned by machine learning, the learned model being configured to, when the image data is input, output fabric data indicating a feature value of the fabric, the second data indicating a correspondence relationship between the fabric data and the ink data, and the recommended parameter.

A printing system is disclosed. The printing system includes at least one physical memory device to store ink model logic and one or more processors coupled with the at least one physical memory device to execute the ink model logic to generate first ink model parameter data for a first print medium based on first ink deposition data for a second print medium and first optical density measurement data for the first print medium.

A follower circuit includes a communication circuit coupled to a data pad and an authentication circuit to conduct a communication session. The communication circuit detects a stepped voltage signal having a plurality of successive voltage levels of three voltage levels on the data pad to initiate a data frame of the communication session and provides a voltage signal to the data pad to request the communication session. The authentication circuit coupled to the communication circuit identifies a parameter in the data frame.

A surface tension difference between a first ink and a third ink is smaller than a surface tension difference between the first ink and a second ink. A first gradation value for the first ink is quantized to generate a first quantized value, a second gradation value for the second ink is quantized to generate a second quantized value, and a third gradation value for the third ink is quantized to generate a third quantized value. The above quantization processing is performed such that, in a predetermined pixel region, the number of pixels for each of which the second quantized value and the third quantized value both indicate printing is greater than the number of pixels for each of which the first quantized value and the third quantized value both indicate printing.

There is provided an image forming apparatus that forms an image with a plurality of coloring materials on a recording medium, and the image forming apparatus includes: a hardware processor that calculates a chromaticity range having a color difference not less than a setting value to respective chromaticities of the plurality of coloring materials for use in formation of the image, as a base color range common between the plurality of coloring materials.

A printing system is disclosed. The printing system includes at least one physical memory device to store ink model logic and one or more processors coupled with the at least one physical memory device to execute the ink model logic to generate first ink model parameter data for a first print medium based on first ink deposition data for a second print medium and first optical density measurement data for the first print medium.

An imaging system comprising: a system control component having host firmware stored thereon, the system control component comprising a print head operation module actuatable by the host firmware to transmit signals to a print head of the imaging system, the signals configured to cause the print head to operate; and a monitor-enforce module, the monitor-enforce module comprising: a monitor interface configured to receive security information from a security device of the imaging system, and an enforce module, the enforce module being configured to selectively interrupt said signals transmitted by the print head operation module, based on the security information.

An image processing apparatus includes circuitry. The circuitry acquires colorant set information indicating at least one colorant set that reproduces a spot color. The circuitry classifies, according to colorant mounting information indicating a colorant mounted on an image forming apparatus, the at least one colorant set into first and second colorant sets. The spot color is reproduceable with the first colorant set without a replacement of the colorant mounted on the image forming apparatus. The spot color is reproduceable with the second colorant set with a replacement of the colorant mounted on the image forming apparatus. The circuitry displays the at least one colorant set on a display on which the at least one colorant set is identifiable as one of the first colorant set and the second colorant set. The circuitry receives a selection of the first colorant set that is used to reproduce the spot color.

An image forming apparatus includes a rotatable image bearer, a transfer rotator, a detector, and circuitry. The image bearer bears an image. The transfer rotator transfers the image from the image bearer onto a recording medium sandwiched and conveyed between the image bearer and the transfer rotator. The detector detects length information indicating a length, in a direction of conveyance of the recording medium, of the image on the recording medium. The circuitry corrects a correction value, based on the length information detected by the detector and a target value of the length information, to correct an image magnification, in the direction of conveyance of the recording medium, of the image to be formed on the recording medium. The circuitry controls an image forming operation of forming the image on the recording medium with the correction value.

An apparatus that operates with a detachable unit mounted therein, includes: a storage unit configured to store a public key; and a verification unit configured to verify data held by the mounted unit, based on the public key. The data includes attribute information indicating an attribute of the unit, and authentication information generated from target information including the attribute information with a secret key paired with the public key and from which the target information is restorable, and the verification unit is further configured to detect an anomaly in the attribute information or the authentication information included in the data, by determining whether the attribute information included in the target information restored from the authentication information using the public key matches the attribute information included in the data.