Seiko Epson Corporation

Kosuke Nomoto

Kazuya Yoshikaie

Kazuhiko Arimori

Noriyuki Koyanagi

Hiromichi Kitsuki

Makoto Wada

Satoshi Nakata

Naoki Sakamoto

Keisuke Miyauchi

Shinsuke Kogi

Akira Anami

Wataru Beppu

Yuji Takase

Masaya Kobayashi

Masaya Yamasaki

A medium transport apparatus includes a controller that determines how many transport roller pairs disposed on a medium transport route are transporting a medium, based on detection information from detectors disposed in relation to respective transport roller pairs. Then, the controller sets a threshold to a larger value as a larger number of transport roller pairs are transporting the medium and sets the threshold to a lower value as a smaller number of transport roller pairs are transporting the medium.

Medium transport apparatus, image read apparatus, jam detection method, and storage medium

When a transport section transports be a media, a controller of an image reading apparatus determines the lengths of the media in the transport direction, based on detection results of a medium detector. When determining that a length of a medium is equal to or more than a threshold and then determining that a length of a subsequent medium is equal to or more than the threshold, the controller decreases an ejection speed of the subsequent medium to a second speed by the transport section. When determining that a length of a medium is equal to or more than the threshold and then determining that a length of a subsequent medium is less than the threshold, the controller decreases the ejection speed from the first speed to a third speed that is lower than the second speed by the transport section.

Image reading apparatus using plurality of media having different length

A first transport roller that is positioned upstream of a reading member and that applies sending force to an original, a second transport roller that is positioned downstream of the reading member and that applies sending force to the original. A first transporting mode is included in a plurality of transporting modes executable by a control member. The first transporting mode includes a period in which a largest set velocity value in transporting the original while in a first state in which reading is performed while the original receives sending force from, among the first transport roller and the second transport roller, the first transport roller alone is set higher than a largest set velocity value in transporting the original while in a second state in which reading is performed while the original receives sending force from both the first transport roller and the second transport roller.

Image reading apparatus and original transporting method

An image reading apparatus includes a transportation unit configured to transport a document; a reading unit configured to read the document transported by the transportation unit; a medium placement unit which is positioned upstream of the reading unit in the transportation, and on which the document and a setting sheet that includes setting information for setting a condition of reading processing of the document are placed; a detection unit which is disposed in the medium placement unit, and is configured to detect the setting information from the setting sheet placed on the medium placement unit; and a control unit configured to control the reading processing, in which the control unit sets the condition of the reading processing based on the setting information detected by the detection unit, and executes, under the condition that is set, the reading processing including reading of the document by the reading unit.

Image reading apparatus, image reading method, and image reading system

A detection section that detects a value used for determining whether or not a jam of a paper sheet has occurred includes a sound detection unit that detects a sound and an auxiliary detection unit that detects a value different from the magnitude of a sound in the case where a jam of the paper sheet has occurred, and, in the case where the sound detection unit has detected a sound of a magnitude equal to or greater than a first threshold value, a control unit controls determines whether or not a jam of the paper sheet has occurred with reference to a detection result of the auxiliary detection unit, and controls a transport unit on the basis of a result of the determination.

Medium transport apparatus and image reading apparatus

An image reading apparatus includes a roller that transports a document; a reading unit that reads an image of the document which is transported; a DC motor that drives the roller; and a control unit that controls the DC motor. The control unit is configured to stop driving of the DC motor in a case where a driving load value obtained when the DC motor is driven exceeds a threshold. A first threshold which is applied in a case of a first document and a second threshold which is applied in a case of a second document of which a basis weight is larger than a first basis weight are set, and the first threshold is less than the second threshold.

Image reading apparatus

A medium feeding device includes a feed roller that feeds a medium from a medium placement unit on which the medium is placed a separation roller that nips the medium between the feed roller and the separation roller to separate the medium, a motor that applies a rotational torque to the separation roller, and a control unit that controls the motor. The rotational torque is transmitted to the separation roller from the motor not via a torque limiter and the separation roller separates the medium with the rotational torque applied to the separation roller.

Medium feeding device, image reading apparatus, and recording apparatus

A feeder includes a pressing section that presses a medium after a feeding force is applied on the medium in a direction in which a leading edge of the medium set in a setting section in a feeding direction abuts on an abutment section during feeding of the media by a feed roller.

Feeder, image reading apparatus and recording apparatus

An image reading apparatus is provided with an identification information reading unit (reading unit, NFC reader, and identification information acquisition unit) which acquires identification information by reading the identification information from a section to be read at which identifiable identification information is recorded for each individual carrier sheet and which is provided at a joining section of the carrier sheet in which two transparent sheets for pinching an original document are joined at a portion of a peripheral edge portion; and a processor which performs a process which is associated with the identification information read by the identification information reading unit.

When a power supply mode is an AC power mode, if a correction value which is read out from a non-volatile memory is a second correction value &#x3b1;2 corresponding to a battery mode, a first correction value &#x3b1;1 is calculated according to an equation &#x3b1;1=&#x3b1;2&#xd7;K2 using the second correction value &#x3b1;2, and bidirectional printing is performed by controlling an ejection timing of a print head based on the first correction value &#x3b1;1. Meanwhile, when a power supply mode is the battery mode, if the correction value is the first correction value &#x3b1;1 corresponding to the AC power mode, the second correction value &#x3b1;2 is calculated according to an equation &#x3b1;2=&#x3b1;1&#xd7;K1 using the first correction value &#x3b1;1, and bidirectional printing is performed by controlling the ejection timing of the print head based on the second correction value &#x3b1;2.

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Fukutsu, Japan

Kosuke Nomoto