# US 2025/0094098 A1 · Printing apparatus, control method of printing apparatus, and storage medium

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- Number: US 2025/0094098 A1
- Document ID: US20250094098A1
- Status: Published application
- Kind: A1
- Application number: 18/971,206
- Filed: 2024-12-06
- Published: 2025-03-20
- Earliest claimed: 2022-08-09
- Assignees: Canon Kabushiki Kaisha
- Applicants: Canon Kabushiki Kaisha
- Inventors: Kazunari Yamamoto
- Web page: https://patentgrep.com/patent/US20250094098A1

## CPC

- G06F 3/122: {with regard to computing resources, e.g. memory, CPU}
- G06F 3/1222: {Increasing security of the print job}
- G06F 3/1238: {Secure printing, e.g. user identification, user rights for device usage, unallowed content, blanking portions or fields of a page, releasing held jobs}
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)

## Abstract

A printing apparatus receives a file transmitted from an external device, stores data included in the file in a volatile memory in a case where the external device is a server providing a secure printing service, and rewrites the data with dummy data, which is stored in a sector to a limit of the capacity in the volatile memory, in a case where the sector of the volatile memory storing the data is invalid. The volatile memory is a RAM and can be used as a RAMDISK.

## Claims

### Claim 1

A printing apparatus comprising:
a reception unit configured to receive a file transmitted from an external device;
a volatile memory storing data included in the file in a case where the external device is a predetermined server; and
an overwriting unit configured to rewrite the data with dummy data, which is stored in a sector to a limit of the capacity in the volatile memory, in a case where the sector of the volatile memory storing the data is invalid.

### Claim at position 2

-10. (canceled)