IP Library › Granted Patent US 12,533,878
Granted Patent B2
US 12,533,878 · App. 18/476,387 · Granted Jan 27, 2026

Drive circuit unit, head unit, and liquid discharge apparatus

Inventor: Yoichiro Kondo (Nagano, JP)
Assignee: Seiko Epson Corporation
B41J2/04541B41J2/04581B41J2/04588B41J2/04593B41J29/377B41J2002/14491B41J2/515B41J2202/08
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 12,533,878
App. No.
18/476,387
Granted
Jan 27, 2026
Kind
B2
Abstract

Provided is a drive circuit unit generating a drive signal for driving a head, the drive circuit unit including: a drive circuit generating the drive signal; a first connector coupled to the head; a first substrate on which the first connector is mounted; a fan generating wind for the drive circuit; and a second substrate on which the fan is mounted.

Claims (38)

1 . A drive circuit unit generating a drive signal for driving a head, the drive circuit unit comprising:

a drive circuit generating the drive signal;

a first connector connectable to the head;

a first substrate on which the first connector is mounted;

a fan generating wind for the drive circuit; and

a second substrate on which the fan is mounted, and

the first substrate and the second substrate being B-to-B-coupled via a floating connector.

2 . The drive circuit unit according to claim 1 , wherein

the fan protrudes from the second substrate to a drive circuit side.

3 . The drive circuit unit according to claim 1 , wherein

the fan operates by power supplied by a cable from the first substrate not via the second substrate.

4 . The drive circuit unit according to claim 1 , wherein

the fan is mounted on the second substrate via a floating connector.

5 . The drive circuit unit according to claim 4 , wherein

the fan is fixed to the second substrate only by the floating connector between the fan and the second substrate.

6 . The drive circuit unit according to claim 1 , wherein

the second substrate includes a right-angle connector to which a communication cable is coupled, on an end portion opposite to the fan among end portions of the second substrate.

7 . A head unit comprising:

a head; and

a drive circuit unit generating a drive signal for driving the head, wherein

the drive circuit unit includes

a drive circuit generating the drive signal,

a first connector coupled to the head,

a first substrate on which the first connector is mounted,

a fan generating wind for the drive circuit, and

a second substrate on which the fan is mounted, and

the first substrate and the second substrate being B-to-B-coupled via a floating connector.

8 . A liquid discharge apparatus comprising:

a transport unit transporting a medium;

a head; and

a drive circuit unit generating a drive signal for driving the head, wherein

the drive circuit unit includes

a drive circuit generating the drive signal,

a first connector coupled to the head,

a first substrate on which the first connector is mounted,

a fan generating wind for the drive circuit, and

a second substrate on which the fan is mounted, and

the first substrate and the second substrate being B-to-B-coupled via a floating connector.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 28, 2023
From: KONDO, YOICHIRO
To: SEIKO EPSON CORPORATION
Reel/Frame 065057/0551 →
Priority Claims (1)
JP 2022-157643 · Sep 30, 2022 · national
Continuity (1)
Related Publication 20240109296A1 · Apr 4, 2024
References Cited (4)
US 11186083B2 · Kondo · 2021 [cited by applicant]
US 20160297221A1 · Kitazawa · 2016 [cited by examiner]
US 20170313109A1 · Profaca · 2017 [cited by examiner]
JP 2020138356A · 2020 [cited by applicant]