Seiko Epson Corporation

Masaki Hyogo

Junichi Otsuka

Tomohiro Kodama

Hiroshi Wanibuchi

Masahiro Katagiri

Mitsuhisa Ando

Eiji Ito

A printer having multiple stages of nozzles is controlled to avoid or minimize blank space between print portions when printing on roll paper. A controller in communication with the printer is configured to determine if last partial print data to be printed contains blank raster data. If so, the controller calculates the difference between a total number of rasters in the first through the last partial print data and the number of blank rasters in the last partial print data, prints the last partial print data, and controls the paper transportation mechanism to advance the roll paper only the calculated distance to eliminate excess blank space between print portions. The functionality of the controller is also embodied in a method for controlling a printer as described above.

Printing system and method to eliminate excess blank space between print positions

Systems and methods for reliably canceling a DMA transfer mode and accelerating printer initialization. A host devicefor controlling a printer having a DMA transfer mode for printing by transferring image data associated with a received image print command to a print buffer. The host devicehas a print data generating unitfor generating the image print command, memoryfor storing the data size of the image data associated with the image print command generated by the print data generating unit, and a printer control unitfor sending to the printeran initialization command having null data of the data size stored in memoryadded to the beginning of the initialization command.

Print control apparatus and printing system

A device status monitoring system and method for a POS (point of sale) terminal system, in which an OPOS (OLE for Retail POS) object continuously records changes in device status to a file. A control system (OPOS object) includes a first object (control object) providing an interface for a device class to an application program, and a second object (service object) providing an interface for a specific device to the first object. The second object has commands for executing a process for: receiving status data indicating a device status from the specific device; detecting, as status change data, status data that changed by comparing the received status data with previously received status data; determining, based on predefined recording conditions, whether the status change data is data to be recorded in a log file; generating log data for recording the status change by converting the status change data to a text message and adding time information to the text message; and storing the log data to a log file specified by the recording conditions.

Growing community of inventors

Ueda, Japan

Masaki Hyogo