Prosecution Insights
Last updated: August 17, 2026
Application No. 19/418,049

CHARGE REMOVAL APPARATUS AND IMAGE FORMING SYSTEM

Non-Final OA §102
Filed
Dec 12, 2025
Priority
Dec 17, 2024 — JP 2024-220509
Examiner
GRAY, FRANCIS C
Art Unit
2852
Tech Center
2800 — Semiconductors & Electrical Systems
Assignee
Canon Inc.
OA Round
1 (Non-Final)
91%
Grant Probability
Favorable
1-2
OA Rounds
1y 3m
Est. Remaining
98%
With Interview

Examiner Intelligence

Grants 91% — above average
91%
Career Allowance Rate
930 granted / 1022 resolved
+23.0% vs TC avg
Moderate +7% lift
Without
With
+7.2%
Interview Lift
resolved cases with interview
Fast prosecutor
1y 11m
Avg Prosecution
10 currently pending
Career history
1030
Total Applications
across all art units

Statute-Specific Performance

§101
2.2%
-37.8% vs TC avg
§103
32.4%
-7.6% vs TC avg
§102
47.7%
+7.7% vs TC avg
§112
11.9%
-28.1% vs TC avg
Black line = Tech Center average estimate • Based on career data from 1022 resolved cases

Office Action

§102
DETAILED ACTION Notice of Pre-AIA or AIA Status The present application, filed on or after March 16, 2013, is being examined under the first inventor to file provisions of the AIA . Claim Rejections - 35 USC § 102 In the event the determination of the status of the application as subject to AIA 35 U.S.C. 102 and 103 (or as subject to pre-AIA 35 U.S.C. 102 and 103) is incorrect, any correction of the statutory basis (i.e., changing from AIA to pre-AIA ) for the rejection will not be considered a new ground of rejection if the prior art relied upon, and the rationale supporting the rejection, would be the same under either status. The following is a quotation of the appropriate paragraphs of 35 U.S.C. 102 that form the basis for the rejections under this section made in this Office action: A person shall be entitled to a patent unless – (a)(1) the claimed invention was patented, described in a printed publication, or in public use, on sale, or otherwise available to the public before the effective filing date of the claimed invention. Claim(s) 1-11 is/are rejected under 35 U.S.C. 102(a)(1) as being anticipated by Masaki et al. [PG. Pub. No.: US 2024/0255882 A1]. With regards to claims 1 & 11, Masaki discloses an image forming system (an image forming apparatus, ABSTRACT) comprising: an image forming unit that forms an image on a sheet (100, image forming apparatus forms an image on a recording medium (hereinafter referred to as a sheet), Fig. 1, ¶0019); a noncontact charge-removal unit that removes a charge on the sheet (200, charge-eliminating apparatus, Fig. 2, ¶0026), on which the image has been formed (¶0026), in a noncontact state (Fig. 2), the noncontact charge-removal unit including an electrode portion that generates an ion (46, ionizer as a non-contact charge eliminating unit Fig. 2, ¶0030); a controller (58, controller, ¶0034) that performs a detection process (102, maintenance detection mode, 0034) of detecting whether maintenance of the electrode portion is necessary (¶0034-0036 & ¶0038); and a display unit that indicates that the detection process is being performed (¶0031 & ¶0038). With regards to claim 2, Masaki discloses a housing that houses the noncontact charge-removal unit (57, frame, Fig. 2, ¶0031), wherein the display unit is disposed on an outer surface of the housing (56, LED is mounted on an upper surface of an exterior surface of the frame, Fig. 2, ¶0031). With regards to claim 3, Masaki discloses the controller further controls the noncontact charge-removal unit to perform a charge removal process of removing charges on a plurality of sheets (increment sheet counter, Fig. 6), the plurality of sheets being transported from the image forming unit (0026), wherein the detection process is performed after the charge removal process (¶0029). With regards to claim 4, Masaki discloses in response to submission of a job during execution of the detection process, the display unit indicates, to a user, that the execution of the detection process is to be interrupted and the job is to be performed (Flow Charts of Figs. 5 & 6, ¶0043 & ¶0050). With regards to claim 5, Masaki discloses in response to submission of a job during execution of the detection process, the display unit displays a screen in which a user can select whether the execution of the detection process is to be interrupted (information (message) indicating whether maintenance is required or not for the ionizer 46 may be displayed on a display of an operation unit 150 (see FIG. 11) provided on the image forming apparatus, ¶0038). With regards to claim 6, Masaki discloses the display unit provides a notification that the detection process is being performed, and displays a message that indicates that submission of a job is not recommended (information (message) indicating whether maintenance is required or not for the ionizer 46 may be displayed on a display of an operation unit 150 (see FIG. 11) provided on the image forming apparatus, ¶0038). With regards to claim 7, Masaki discloses before execution of the detection process, the display unit displays an advance notice of a start of the detection process. With regards to claim 8, Masaki discloses after an operating time of the noncontact charge-removal unit exceeds a threshold and before the detection process is performed, the display unit displays the advance notice of the start of the detection process (¶0038). With regards to claim 9, Masaki discloses in response to submission of a job while an advance notice of a start of the detection process is displayed by the display unit, the display unit displays a screen in which a user can select whether the job is to be performed without execution of the detection process (¶0038). 10. The image forming system according to claim 1, further comprising: a contact charge-removal unit that is disposed downstream of the image forming unit in a sheet transport direction (Fig. 11), and that removes a charge on the sheet in a contact state (45, charge-eliminating roller pair 51 & 50, Fig. 2, ¶0030), wherein the noncontact charge-removal unit (46, ionizer is a non-contact charge eliminating unit) is disposed downstream of the contact charge-removal unit in the sheet transport direction (Fig. 2, ¶0030). Conclusion Any inquiry concerning this communication or earlier communications from the examiner should be directed to FRANCIS C GRAY whose telephone number is (571)270-3348. The examiner can normally be reached Monday-Friday 7am-5pm. 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, Stephanie Bloss can be reached at 571-272-3555. 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. /FRANCIS C GRAY/ Primary Examiner, Art Unit 2852
Read full office action

Prosecution Timeline

Dec 12, 2025
Application Filed
Jul 24, 2026
Non-Final Rejection mailed — §102 (current)

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Study what changed to get past this examiner. Based on 5 most recent grants.

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Prosecution Projections

1-2
Expected OA Rounds
91%
Grant Probability
98%
With Interview (+7.2%)
1y 11m (~1y 3m remaining)
Median Time to Grant
Low
PTA Risk
Based on 1022 resolved cases by this examiner. Grant probability derived from career allowance rate.

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