Liquid jet recording head

A liquid jet recording head which is structured by joining a holder member, which detachably holds a recording liquid storage unit storing recording liquid at the interior thereof or a recording liquid storage tank storing recording liquid at the interior thereof, to a recording unit for carrying out recording on a medium to be recorded, the recording unit comprising:

• a recording element substrate at which a plurality of recording elements for discharging recording liquid are provided;
• a flexible wiring sheet which is provided so as to surround a periphery of the recording element substrate and which is for transmitting a recording signal to the recording element substrate;
• a wiring substrate which is electrically connected to one end portion of the wiring sheet and has a terminal portion for input of a recording signal from an exterior;
• a flow path forming member at which a recording liquid supplying path for supplying recording liquid to the recording element substrate is provided;
• and a porous member for filtering recording liquid, and which carries out recording on a medium to be recorded,
• wherein one end portion of the wiring substrate is supported by the flow path forming member, and due to opposing side end portions of another end portion of the wiring substrate being engaged with a set of engaging grooves provided at the recording liquid storage unit or the holder member, the wiring substrate is held by the flow path forming member and the recording liquid storage unit or the holder member.

A liquid jet recording head for carrying out recording on a medium to be recorded, comprising:

• a recording element substrate at which a plurality of recording elements for discharging recording liquid are provided;
• a flexible wiring sheet which is provided so as to surround a periphery of the recording element substrate and which is for transmitting a recording signal to the recording element substrate;
• a wiring substrate which is electrically connected to one end portion of the wiring sheet and which has a terminal portion for input of a recording signal from an exterior;
• and
• a flow path forming member at which a recording liquid supplying path for supplying recording liquid to the recording element substrate is formed,
• wherein the liquid jet recording head further comprises holding means for holding one end portion of the wiring substrate in a state of being curved from one of opposing both end portions of the one end portion to another, and
• when the flow path forming member is joined to a holder member, which detachably holds a recording liquid storage unit storing recording liquid at the interior thereof or a recording liquid storage tank storing recording liquid at the interior thereof, in a state in which one end portion of the wiring substrate is held by the holding means, due to opposing both side end portions of another end portion of the wiring substrate being respectively inserted into and engaged with a set of engaging grooves provided at the recording liquid storage unit or the holder member, the wiring substrate is held by the flow path forming member and the recording liquid storage unit or the holder member.

A liquid j et recording head which is structure d by joining a holder member, which detachably holds a recording liquid storage unit storing recording liquid at the interior thereof or a recording liquid storage tank storing recording liquid at the interior thereof, to a recording unit for carrying out recording on a medium to be recorded the recording unit comprising:

• a recording element substrate at which a plurality of recording elements for discharging recording liquid are provided;
• a flexible wiring sheet which is provided so as to surround a periphery of the recording element substrate and which is for transmitting a recording signal to the recording element substrate;
• a wiring substrate which is electrically connected to one end portion of the wiring sheet and has a terminal portion for input of a recording signal from an exterior;
• a flow path forming member at which a recording liquid supplying path for supplying recording liquid to the recording element substrate is provided;
• and a porous member for filtering recording liquid,
• wherein one end portion of the wiring substrate is held by holding means provided at the flow path forming member in a state of being curved from one of opposing both end portions of the one end portion to another, and due to opposing both side end portions of the another end portion of the wiring substrate being respectively engaged with a set of engaging grooves provided at the recording liquid storage unit or the holder member, the wiring substrate is held by the flow path forming member and the recording liquid storage unit or the holder member.

A liquid jet recording head which is structured by joining a holder member, which detachably holds a recording liquid storage unit storing recording liquid at the interior thereof or a recording liquid storage tank storing recording liquid at the interior thereof, to a recording unit for carrying out recording on a medium to be recorded, the recording unit comprising:

• a recording element substrate at which a plurality of recording elements for discharging recording liquid are provided;
• a flexible wiring sheet which is provided so as to surround a periphery of the recording element substrate and which is for transmitting a recording signal to the recording element substrate;
• a wiring substrate which is electrically connected to one end portion of the wiring sheet and has a terminal portion for input of a recording signal from an exterior;
• a flow path forming member at which a recording liquid supplying path for supplying recording liquid to the recording element substrate is provided;
• and a porous member for filtering recording liquid,
• wherein the flow path forming member has a positioning portion for positioning the wiring substrate with respect to the flow path forming member, and a set of engaging portions engaging with opposing both end portions of the one end portion of the wiring substrate,
• the recording liquid storage unit or the holder member has a set of engaging grooves with which opposing both end portions of another end portion of the wiring substrate are respectively inserted and engaged, and
• in a state in which the one end portion of the wiring substrate is held at the flow path forming member by the positioning portion and the set of engaging grooves, due to the other end portion of the wiring substrate engaging with the engaging grooves, the wiring substrate is held by the flow path forming member and the recording liquid storage unit or the holder member.