Prosecution Insights
Last updated: April 19, 2026
Application No. 18/334,419

LIQUID DISCHARGING APPARATUS

Non-Final OA §103
Filed
Jun 14, 2023
Examiner
VALENCIA, ALEJANDRO
Art Unit
2853
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Brother Kogyo Kabushiki Kaisha
OA Round
3 (Non-Final)
42%
Grant Probability
Moderate
3-4
OA Rounds
2y 11m
To Grant
48%
With Interview

Examiner Intelligence

Grants 42% of resolved cases
42%
Career Allow Rate
567 granted / 1335 resolved
-25.5% vs TC avg
Moderate +6% lift
Without
With
+5.9%
Interview Lift
resolved cases with interview
Typical timeline
2y 11m
Avg Prosecution
151 currently pending
Career history
1486
Total Applications
across all art units

Statute-Specific Performance

§101
0.1%
-39.9% vs TC avg
§103
53.6%
+13.6% vs TC avg
§102
24.4%
-15.6% vs TC avg
§112
20.8%
-19.2% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1335 resolved cases

Office Action

§103
DETAILED ACTION Claim Rejections - 35 USC § 103 The following is a quotation of 35 U.S.C. 103 which forms the basis for all obviousness rejections set forth in this Office action: A patent for a claimed invention may not be obtained, notwithstanding that the claimed invention is not identically disclosed as set forth in section 102, if the differences between the claimed invention and the prior art are such that the claimed invention as a whole would have been obvious before the effective filing date of the claimed invention to a person having ordinary skill in the art to which the claimed invention pertains. Patentability shall not be negated by the manner in which the invention was made. Claim(s) 1-3, 5, 6, 8-11 and 15-17 are rejected under 35 U.S.C. 103 as being unpatentable over Takabayashi et al. (2021/0283918) in view of Wada (2019/0240982). Regarding claims 1 and 17, Takabayashi teaches a liquid discharging apparatus comprising: a housing (fig. 3, item 11); a head (fig. 3, item 37) including a nozzle (fig. 3, item 36) configured to discharge a liquid to a printing medium; a waste liquid reservoir (fig. 3, item 51) configured to store a waste liquid of the liquid, the waste liquid reservoir being configured to be inserted into and drawn from the housing ([0029]); and a conveying route (fig. 3, rout from medium cassette 24 to medium discharge tray 32) via which the printing medium (fig. 3, item 23) is to be conveyed in a conveying direction (figs. 3, -Y direction), the conveying direction being a direction from the head toward an opening (fig. 3, opening created by cover 32) of the housing, the printing medium on which an image has been formed by the head being moved out of the housing via the opening (see fig. 3), wherein, in a state that the waste liquid reservoir is inserted in the housing: the waste liquid reservoir is arranged in an inside of the housing, and at a position downstream of the head in the conveying direction (see fig. 3) and a bottom surface of the waste liquid reservoir is arranged above a nozzle surface of the head a top surface of the waste liquid reservoir is arranged above the head (see fig. 3). Takabayashi teaches wherein the waste liquid reservoir is downstream of the head, not upstream, as claimed. Wada teaches this (Wada, see fig. 3, Note opening 7, head 4 and reservoir 9). It would have been obvious to one of skill in the art at the time of invention to dispose the waste liquid reservoir upstream of the head, as disclosed by Wada, instead of downstream of the head, as disclosed by Takabayashi because doing so would amount to a simple substitution of one known head/reservoir arrangement for another to obtain predictable results. Further, according to MPEP 2144.04, a rearrangement of parts is not patentable if such a rearrangement would not modify the operation of the device. Here, whether the reservoir is upstream or downstream of the head has not effect on how the device functions and thus does not modify the operation of the device. Regarding claim 2, Takabayashi in view of Wada teaches the liquid discharging apparatus according to claim 1, wherein, in the state that the waste liquid reservoir is inserted in the housing, at least a portion of the waste liquid reservoir is arranged at a position that is the same as a position of at least a portion of the head in an up-down direction orthogonal to the nozzle surface of the head (Takabayashi, see figs. 3, Note that waste liquid reservoir, as defined above, overlaps the head, as defined). Regarding claim 3, Takabayashi in view of Wada teaches the liquid discharging apparatus according to claim 2, further comprising a display panel configured to display information, wherein the display panel is provided at a position downstream of the head in the conveying direction (Takabayashi, see fig. 1, Note operation panel 14). Regarding claim 5, Takabayashi in view of Wada teaches the liquid discharging apparatus according to claim 3, further comprising a reader (Wada, figs. 1, 2, note unlabeled scanner) configured to read an object as an image, wherein, in the state that the waste liquid reservoir is inserted in the housing, the waste liquid reservoir is arranged below the reader. It would have been obvious to add the scanner of Wada to the printer of Takabayashi because doing so would allow for scanning of documents. Upon combination, the scanner would be above all other components in the housing. Regarding claim 6, Takabayashi in view of Wada teaches the liquid discharging apparatus according to claim 3, further comprising: a carriage (Takabayashi, fig. 3, item 38) configured to move in a scanning direction (Takabayashi, fig. 3, X direction), the head being mounted on the carriage (Takabayashi, see fig. 3); and a guide rail (Takabayashi, see fig. 3, note that carriage 38 is necessarily attached to a guide rail) extending along the scanning direction (Takabayashi, see fig. 3), the carriage being supported by the guide rail (Takabayashi, see fig. 3), wherein the waste liquid reservoir is arranged upstream of the guide rail in the conveying direction (Takabayashi, see fig. 3, Note that this is necessarily the case). Regarding claim 8, Takabayashi in view of Wada teaches the liquid discharging apparatus according to claim 3, further comprising a back-surface feeder (Takabayashi, fig. 3, note that a sheet being fed from sheet cassette 24, through a conveyance path, and out toward the discharge tray 32 necessarily has a sheet-direction-reversing back -surface feeder) provided in a back-surface-side-area of the housing (Takabayashi, see fig. 3), the back-surface feeder being configured to feed the printing medium to the conveying route, wherein, in the state that the waste liquid reservoir is inserted in the housing, the waste liquid reservoir is arranged downstream of the back-surface feeder in the conveying direction (Takabayashi, see fig. 3, Note that such a back-surface feeder is necessarily along the rear wall of the housing so that the reservoir is downstream of the back-surface feeder) Regarding claim 9, Takabayashi in view of Wada teaches the liquid discharging apparatus according to claim 3, further comprising: a maintenance unit (Takabayashi, fig. 3, item 50) configured to perform maintenance for the head, and a tube (Takabayashi, fig. 3, note that a tube is necessarily present) connecting the waste liquid reservoir and the maintenance unit (Takabayashi, see fig. 3), wherein the tube is arranged along a side-surface of a main body of the housing (Takabayashi, see fig. 3). Regarding claim 10, Takabayashi in view of Wada teaches the liquid discharging apparatus according to claim 9, wherein, in the state that the waste liquid reservoir is inserted in the housing, the waste liquid reservoir is arranged in one of a rightside-area and a left-side-area of the housing (Takabayashi, see fig. 3), and the maintenance unit is arranged in one of the right side-area and the left-side-area of the housing same as the one of the right-side-area and the left-side area of the housing in which the waste liquid reservoir is arranged, in a left-right direction parallel with the nozzle surface of the head and orthogonal to the conveying direction (Takabayashi, see fig. 3). Regarding claim 11, Takabayashi in view of Wada teaches the liquid discharging apparatus according to claim 3, further comprising a conveying motor (col. 5, line 57) configured to convey the printing medium in the conveying route, wherein, in the state that the waste liquid reservoir is inserted in the housing, the waste liquid reservoir is arranged in one of a right-side-area and a left-side-area of the housing, and the conveying motor is arranged in remaining one of the right-side-area and the left-side-area of the housing, in a leftright direction parallel with the nozzle surface of the head and orthogonal to the conveying direction (Takabayashi, see fig. 3, Note that all shown conveying rollers are necessarily driven by a motor). Regarding claim 15, Takabayashi in view of Wada teaches the liquid discharging apparatus according to claim 1, wherein a lid (Takabayashi, fig. 3, item 33) configured to be opened and closed for inserting and drawing the waste liquid reservoir with respect to the housing is provided in a side-surface of the housing (Takabayashi, see fig. 3, Note that “a side surface” has not been defined in any particular way). Regarding claim 16, Takabayashi in view of Wada teaches the liquid discharging apparatus according to claim 15, wherein the waste liquid reservoir includes a container (Takabayashi, fig. 10, item 51), and an absorbing foam (Takabayashi, [0003]) configured to be arranged in an inside of the container, the absorbing foam being configured to absorb the waste liquid (Takabayashi, see fig. 3). Claim(s) 4 is rejected under 35 U.S.C. 103 as being unpatentable over Takabayashi in view of Wada as applied to claim 3 above, and further in view of Segawa (2016/0031234). Regarding claim 4, Takabayashi in view of Wada teaches the liquid discharging apparatus according to claim 3. Takabayashi in view of Wada does not teach a reverse conveying route configured to be used for performing a double-sided printing to the printing medium, wherein, in the state that the waste liquid reservoir is inserted in the housing, the waste liquid reservoir is arranged above the reverse conveying route. Segawa teaches this (Segawa, [0010]). It would have been obvious to one of ordinary skill in the art at the time of invention to add a reversing route of the type disclosed by Segawa to the device disclosed by Takabayashi in view of Wada because doing so would allow for reversing of print media, thereby facilitating double-sided printing. Claim(s) 12 and 13 are rejected under 35 U.S.C. 103 as being unpatentable over Takabayashi in view of Wada as applied to claim 3 above, and further in view of Murata et al. (2021/0229474). Regarding claim 12, Takabayashi in view of Wada teaches the liquid discharging apparatus according to claim 3. Takabayashi in view of Wada does not teach a control board, wherein, in the state that the waste liquid reservoir is inserted in the housing, the waste liquid reservoir is arranged below the control board. Murata teaches this (Murata, see fig. 3, Note control board 54, waste liquid tank 80 an relative positioning). It would have been obvious to one of ordinary skill in the art at the time of invention to arrange control board and waste liquid tank disclosed by Takabayashi in view of Wada in the manner disclosed by Murata because doing so would prevent the control board from encountering waste ink. Regarding claim 13, Takabayashi in view of Wada in view of Murata teaches the liquid discharging apparatus according to claim 12, further comprising a support (Murata, fig. 3, item 66) which is arranged between the waste liquid reservoir and the control board, which has a shield configured to shield the waste liquid reservoir, and which supports the control board (Murata, see fig. 3). Response to Arguments Applicant’s arguments with respect to claim(s) 1 have been considered but are moot in light of the new ground(s) of rejection. Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to ALEJANDRO VALENCIA whose telephone number is (571)270-5473. The examiner can normally be reached M-F. Examiner interviews are available via telephone, in-person, and video conferencing using a USPTO supplied web-based collaboration tool. To schedule an interview, applicant is encouraged to use the USPTO Automated Interview Request (AIR) at http://www.uspto.gov/interviewpractice. If attempts to reach the examiner by telephone are unsuccessful, the examiner’s supervisor, DOUGLAS X. RODRIGUEZ can be reached at 571-431-0716. The fax phone number for the organization where this application or proceeding is assigned is 571-273-8300. Information regarding the status of published or unpublished applications may be obtained from Patent Center. Unpublished application information in Patent Center is available to registered users. To file and manage patent submissions in Patent Center, visit: https://patentcenter.uspto.gov. Visit https://www.uspto.gov/patents/apply/patent-center for more information about Patent Center and https://www.uspto.gov/patents/docx for information about filing in DOCX format. For additional questions, contact the Electronic Business Center (EBC) at 866-217-9197 (toll-free). If you would like assistance from a USPTO Customer Service Representative, call 800-786-9199 (IN USA OR CANADA) or 571-272-1000. /ALEJANDRO VALENCIA/Primary Examiner, Art Unit 2853
Read full office action

Prosecution Timeline

Jun 14, 2023
Application Filed
Dec 11, 2024
Response after Non-Final Action
Apr 25, 2025
Non-Final Rejection — §103
Jul 30, 2025
Response Filed
Aug 04, 2025
Final Rejection — §103
Oct 27, 2025
Interview Requested
Nov 03, 2025
Applicant Interview (Telephonic)
Nov 04, 2025
Examiner Interview Summary
Nov 06, 2025
Request for Continued Examination
Nov 13, 2025
Response after Non-Final Action
Feb 10, 2026
Non-Final Rejection — §103 (current)

Precedent Cases

Applications granted by this same examiner with similar technology

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INKJET ASSEMBLY, INKJET PRINTING APPARATUS AND INKJET PRINTING METHOD FOR USE IN PREPARATION OF DISPLAY COMPONENT
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Patent 12583238
PAPER SUPPLY CONTROL DEVICE
2y 5m to grant Granted Mar 24, 2026
Patent 12576644
RECORDING DEVICE AND METHOD OF CONTROLLING RECORDING DEVICE
2y 5m to grant Granted Mar 17, 2026
Patent 12570101
RECORDING DEVICE
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2y 5m to grant Granted Feb 24, 2026
Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

3-4
Expected OA Rounds
42%
Grant Probability
48%
With Interview (+5.9%)
2y 11m
Median Time to Grant
High
PTA Risk
Based on 1335 resolved cases by this examiner. Grant probability derived from career allow rate.

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