1. A liquid discharge head comprising:
a recording element substrate including an energy generating element that generates energy used to discharge liquid from a discharge port;
a wiring substrate including wiring electrically connected to the energy generating element;
a support substrate for supporting the recording element substrate and the wiring substrate so that a side end portion of the recording element substrate and a side end portion of the wiring substrate are adjacent to each other; and
a sealing member provided to fill a gap between the side end portion of the recording element substrate and the side end portion of the wiring substrate,
wherein the side end portion of the wiring substrate has a step portion, a distance between a second portion of the step portion on the side opposite to the support substrate and the side end portion of the recording element substrate is larger than a distance between a first portion of the step portion on the side of the support substrate and the side end portion of the recording element substrate, and a part of the wiring is formed in the first portion.
2. The liquid discharge head according to claim 1,
wherein, with respect to a thickness direction of the wiring substrate, the number of wirings formed in an area of the wiring substrate on the side of the support substrate is greater than the number of wirings formed in an area of the wiring substrate on the side opposite to the support substrate.
3. A liquid discharge head comprising:
a recording element substrate including an energy generating element that generates energy used to discharge liquid from a discharge port;
a wiring substrate including wiring electrically connected to the energy generating element;
a support substrate for supporting the recording element substrate and the wiring substrate so that a side end portion of the recording element substrate and a side end portion of the wiring substrate are adjacent to each other;
a sheet member provided on the wiring substrate so that a side end portion of the recording element substrate and a side end portion of the sheet member provided on the wiring substrate are adjacent to each other; and
a sealing member provided to fill a gap between the side end portion of the recording element substrate and the side end portions of the wiring substrate and the sheet member,
wherein a distance between the side end portion of the sheet member and the side end portion of the recording element substrate is larger than a distance between the side end portion of the wiring substrate and the side end portion of the recording element substrate.
4. A method for manufacturing a liquid discharge head, the method comprising:
preparing a liquid discharge head including a recording element substrate including an energy generating element that generates energy used to discharge liquid from a discharge port, a wiring substrate including wiring electrically connected to the energy generating element, and a support substrate for supporting the recording element substrate and the wiring substrate so that a side end portion of the recording element substrate and a side end portion of the wiring substrate are adjacent to each other, wherein the side end portion of the wiring substrate has a step portion, a distance between a second portion of the step portion on the side opposite to the support substrate and the side end portion of the recording element substrate is larger than a distance between a first portion of the step portion on the side of the support substrate and the side end portion of the recording element substrate, and a part of the wiring is formed in the first portion; and
filling a gap between the first portion of the step portion and the side end portion of the recording element substrate with a sealing member by disposing an injection port of a needle for injecting the sealing member between the second portion of the step portion and the side end portion of the recording element substrate and injecting the sealing member from the injection port.
5. The method for manufacturing a liquid discharge head according to claim 4,
wherein a distance between the second portion of the step portion and the side end portion of the recording element substrate is greater than an outer diameter of the needle and a distance between the first portion of the step portion and the side end portion of the recording element substrate is smaller than the outer diameter of the needle.
6. A method for manufacturing a liquid discharge head, the method comprising:
preparing a liquid discharge head including a recording element substrate including an energy generating element that generates energy used to discharge liquid from a discharge port, a wiring substrate including wiring electrically connected to the energy generating element, a support substrate for supporting the recording element substrate and the wiring substrate so that a side end portion of the recording element substrate and a side end portion of the wiring substrate are adjacent to each other, and a sheet member provided on the wiring substrate so that a side end portion of the recording element substrate and a side end portion of the sheet member provided on the wiring substrate are adjacent to each other, wherein a distance between the side end portion of the sheet member and the side end portion of the recording element substrate is larger than a distance between the side end portion of the wiring substrate and the side end portion of the recording element substrate, and
filling a gap between the side end portion of the wiring substrate and the side end portion of the recording element substrate with a sealing member by disposing an injection port of a needle for injecting the sealing member between the side end portion of the sheet member and the side end portion of the recording element substrate and injecting the sealing member from the injection port.
7. The method for manufacturing a liquid discharge head according to claim 6,
wherein a distance between the side end portion of the sheet member and the side end portion of the recording element substrate is greater than an outer diameter of the needle and a distance between the side end portion of the wiring substrate and the side end portion of the recording element substrate is smaller than the outer diameter of the needle.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A process cartridge detachably mountable to a main assembly of an electrophotographic image forming apparatus, the main assembly including an output contact movable between an electrical connecting position and a retracted position retracted from the electrical connecting position, a displaceable member configred and positioned to move the output contact, and an elastic function member configured and positioned to elastically urge the displaceable member to urge the output contact toward the retracted position away from the electrical connecting position, said process cartridge comprising:
an electrophotographic photosensitive drum;
a process device actable on said electrophotographic photosensitive drum;
a movable operation member movable relative to a cartridge frame, wherein when said process cartridge is inserted into the main assembly of the apparatus, said movable operation member is engageable with a fixed engageable member fixed in the main assembly of the apparatus to move relative to the cartridge frame, and is engageable with a displaceable engaging portion of the displaceable member to move the output contact from the retracted position to the electrical connecting position against an elastic force of the elastic function member, after the engagement with the fixed engageable member; and
an input electrical contact configured and positioned to receive a voltage for enabling said process device by engagement with the output contact moved to the electrical connecting position.
2-29. (canceled)