Seiko Epson Corporation

Atsushi Natsuno

Yoshiaki Kinoshita

Takashi Saikawa

Tomoaki Kimura

Masanori Hayashi

Mitsuaki Teradaira

Go Hiroike

Yuichi Yoneyama

Takashi Sunohara

Masanao Nakazawa

Kazuya Tanikawa

An image processing device for detecting a large number of missing dots. The image processing device comprises a print data image acquisition unit that acquires a print data image; an inkjet printer unit that prints on the back of a check; a back CIS unit that scans the back of the printed check; a print area extraction unit that extracts a print area R from the scanned image of the back of the check as an extracted image; and a missing dot detection unit determines if there are missing dots based on the print data image and the extracted image extracted by the print area extraction unit.

Image processing device and method of detecting missing dots in an image processing device

The recognition rate is improved and recognition errors suppressed when recognizing magnetic ink characters. The character recognition unitof a check readerrecognizes a magnetic ink characterby performing magnetic recognition based on comparing reference waveform data with character waveform data acquired by reading the magnetic ink characterwith a magnetic head, and optical recognition based on comparing reference image data with image data acquired by reading the magnetic ink characterwith a front contact image sensor; selects a plurality of candidates for the magnetic ink characterby magnetic recognition; and when plural candidates are characters with mutually similar character waveform data, determines that the one plural candidate character that matches the character recognized by optical recognition with reliability exceeding a specific threshold is the magnetic ink character

Recording media processing device, control method of a recording media processing device, and computer-readable recording medium storing a program

A sheet media reading control method includes conveying a sheet medium on which magnetic ink characters are printed through a transportation path, reading the magnetic ink characters and an image of the sheet medium using a magnetic head and an image sensor head positioned along the transportation path, extracting partial scanned image data containing at least an outside edge part of the sheet medium from the scanned image data captured by the image sensor head, executing a skew evaluation based on the partial scanned image data to detect if the sheet medium is conveyed skewed at a skew angle exceeding an allowable skew angle, and invalidating at least the magnetic ink character data captured by the magnetic head from sheet media that are determined by the skew evaluation to be skewed.

Sheet media reading control method and sheet media reading device

A control method for a print media processing apparatus that prints on a print medium based on print data supplied from a host computer, comprising converting the print data supplied from the host computer to the print media processing apparatus before a print command is asserted to print image data in a buffer based on a print data conversion command, and controlling printing in response to a print command by accessing the buffer and retrieving the print image data.

Apparatus and methods for converting print data supplied from a host computer to a print media processing apparatus into print image data before a print command is asserted

A print media processing apparatus increases printer throughput by starting printing after setting the conveyed print medium to the printing start position, and a transportation control unit controls how far the print medium is advanced according to the length of text to be printed on the print medium. The transportation control unit advances the paper to the position where printing text of a specified length to the printing area of the paper begins.

Print media processing apparatus and media transportation control method for the same

Transportation state evaluation methods, transportation state evaluation programs, and recording media processing devices are provided. In one embodiment, a check processing device has an insertion direction evaluation means that determines if an orientation of a check is correct or not based on a detection signal from a magnetic head, a multifeed detector and multifeed evaluation means that detect multifeeding, an enable/disable control means that enables or disables the insertion direction evaluation and multifeed detection operations of the insertion direction evaluation means and multifeed evaluation means, and a control means that unconditionally enables multifeed detection when only the insertion direction evaluation is enabled. Multifeed detection is always enabled when insertion direction evaluation is enabled because the insertion direction evaluation means can return a detection error when multifeeding occurs. By disabling the insertion direction evaluation when multifeeding occurs, situations in which the insertion direction is determined incorrectly are eliminated.

Transportation state evaluation method for a recording media processing device

Using detectors, skewed conveyance of sheet media such as checks can be detected accurately regardless of whether part of the conveyed medium is folded over. The biased feed detection unitof a check processing deviceaccording to at least one embodiment of the invention determines the lengths Land Lof the conveyed check(STand ST) and the thickness of a folded part of the check(ST) at different positions perpendicular to the transportation direction based on the output of a paper thickness detectorand a length detectordisposed to the check transportation path. The folded length Lis then subtracted from the difference &#x394;L of the detected lengths to acquire a corrected difference &#x394;L(ST). If the corrected difference &#x394;Lis less than or equal to a threshold value D, the medium is determined to be conveyed normally (ST). If the corrected difference &#x394;Lexceeds the threshold value D, the medium is determined to be skewed (ST). Skewed conveyance of the checkcan thus be accurately determined.

Medium detection method and a medium processing device

A data processing devicehas flash ROM having a plurality of sectors, and a CPU for erasing data stored in a predetermined area of the flash ROM. A plurality of erase areas is set in the flash ROM based on the sector structures of a plurality of flash ROM devices. The CPU erases data using the erase areas set in flash ROM.

Data processing device having flash ROM, and a flash ROM data erasing method

A document reading apparatus reduces processing time and affords excellent ease of use in reading a slip document to acquire magnetic data and/or image data. As the slip is transported through a transportation path, a magnetic reading unit outputs magnetically read data acquired by reading printed magnetic ink characters from the slip and an optical reading unit outputs image data captured by optically imaging the same slip during the same pass through the transportation path. A parameter may be added to a single-pass read command for selectively specifying magnetic reading only, optical reading only, or both magnetic and optical reading as the type or types of reading of a slip during the single pass through the transportation path. Upon receiving the signal-pass read command with the parameter added thereto, a control unit interprets such command and added parameter by selectively controlling the magnetic and optical reading units to executing only the type or types of reading of the slip specified by the parameter in the single-pass read command.

Single-pass magnetic reading and optical reading apparatus and method

A document reading apparatus reduces processing time and affords excellent ease of use when reading a slip document to acquire both magnetically read data and image data. Transportation unitconvey slips through a transportation path. Magnetic reading unitoutput magnetically read data acquired by reading the printed magnetic ink characters from the slip as the slip passes through the transportation path, and optical reading unitoutput image data captured by optically imaging the same slip during the same pass through the transportation path. A control unitinterprets control commands and controls slip transportation, the magnetic reading process, and the optical reading process accordingly. A single-pass multiple-reading command controls executing a single-pass multiple-reading process for applying both the magnetic reading and optical reading of specified slip during a single pass through the transportation path.

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Matsumoto, Japan

Atsushi Natsuno