An output method executed by a computer includes: receiving compressed data encoded in a state in which a page break is identifiable in print data having a plurality of pages and an encoding dictionary used for the encoding; identifying the page break of the received compressed data and partially decompressing the received compressed data into the print data in units of pages, by using the encoding dictionary; and outputting the print data in order of the decompression.

In the field of printing equipment, a handheld printer, a printing method, an information processing method and a printing device is provided. The problem that an existing printer is limited in operation and printing is solved. The handheld printer includes a printer body, a nozzle protection cover, and a handle. The nozzle protection cover and the handle are provided at two opposite ends of the printer body. The printer body includes a printing panel, and the printing panel is located on the inner side of the nozzle protection cover. The printing panel is provided with at least two nozzles, the at least two nozzles are sequentially arranged at intervals in the first preset direction and the second preset direction, the first preset direction is in the vertical direction, and an included angle is formed between the second preset direction and the first preset direction.

An information processing device includes a table data acquirer that acquires table data; a print data generator that generates print data including an unconverted image in which information stored in the table data is not converted into other information when a user selects a text option and that generates the print data including a first code image obtained by converting the information stored in the table data into a one-dimensional code image when the user selects a one-dimensional code option; and a display controller that displays, on a touch panel, a fourth operation screen including an option region in which a plurality of options including the text option and the one-dimensional code option are displayed and a second table data region in which the table data is displayed.

A data processing method processes data using a processor including N (N is an integer equal to or more than 2) cores and a memory. The data processing method includes: searching a new character as a character whose raster data is not stored in the memory among a plurality of characters specified by character data included in print data to count a count of the searched new characters; generating M (M is an integer equal to or less than the N) threads, wherein the M is a count determined based on the count of the counted new characters among the N; dividing and allocating the plurality of characters to the M threads to generate raster data for the new characters using any one of the N cores for each of the M threads; and rendering the plurality of characters using raster data corresponding to the character data.

A printing system receives a print image to be printed and an operation instruction, generates a processing image obtained by adding an instruction image corresponding to the operation instruction to the print image, receives the processing image and converts the processing image into a processing job, receives the processing job, discriminates the instruction image from an image of the processing job, and operates according to the operation instruction corresponding to the instruction image to cause a printing unit to print the print image.

A printing apparatus includes a main controlling circuit, a sub-controlling circuit group including first-n-th sub-controlling circuits connected in series, a head group configured to eject liquid, a first communication path configured to connect the main controlling circuit and the first sub-controlling circuit, and a second communication path configured to connect the main controlling circuit and the n-th sub-controlling circuit. When the main controlling circuit transmit first print data to the first sub-controlling circuit, the sub-controlling circuit group transfers the first print data in a forward direction. When the main controlling circuit transmit second print data to the n-th sub-controlling circuit, the sub-controlling circuit group transfers the second print data in a reverse direction.

A printing apparatus includes: a main controlling circuit; a sub-controlling circuit group including sub-controlling circuits connected in series; and heads. The print data includes data of a plurality of pixels. The main controlling circuit is configured to execute: generation of, based on the print data, data of first to n-th pixel groups regarding the first to n-th pixel groups each including pixels which are not adjacent (n2), and transmission of the data of the first to n-th pixel groups to the sub-controlling circuit group. Each of the plurality of sub-controlling circuits is configured to execute: obtainment of data of pixels which are associated with each of the plurality of sub-controlling circuits, from the data of the first to n-th pixel groups, and driving of one of the plurality of heads corresponding thereto, based on the data of the pixels.

An image forming apparatus includes a recording head, a control unit, and a correction processing unit. The recording head is configured to eject ink corresponding to an image to be printed, using nozzles. The control unit is configured to determine nozzles corresponding to the image to be printed, correspondingly to a position of a print sheet, and cause the recording head to eject ink from the nozzles. The correction processing unit is configured to perform for the image after gradation process a correction process corresponding to density anomaly that occurs due to an ejection order of the nozzles. Further, the correction processing unit performs the correction process for a density of a target pixel that the density anomaly occurs in the image after gradation pixel, on the basis of a total of densities of periphery pixels within a predetermined distance from the target pixel.

According to an aspect of the present invention, a light-emitting chip includes: a plurality of light-emitting portions and a drive circuit. The drive circuit includes: first to fourth transferring unit, a first switch configured to switch between a first state in which start signals output by the fourth and third transferring units are output to the second and first transferring unit, respectively, and a second state in which the start signal output by the fourth and the third transferring units are output to the third and second transferring unit, respectively, and a second switch configured to switch between a third state in which the first and third transferring units and the first signal line are connected, and a fourth state in which the first and third transferring units and a second signal line are connected.

According to an aspect of the present invention, a light-emitting chip includes: a plurality of light-emitting portions and a drive circuit. The drive circuit includes: first to fourth transferring unit, a first switch configured to switch between a first state in which start signals output by the fourth and third transferring units are output to the second and first transferring unit, respectively, and a second state in which the start signal output by the fourth and the third transferring units are output to the third and second transferring unit, respectively, and a second switch configured to switch between a third state in which the first and third transferring units and the first signal line are connected, and a fourth state in which the first and third transferring units and a second signal line are connected.