IP Library Granted Patent US 11,520,282
Granted Patent B2
US 11,520,282 · App. 17/503,749 · Granted Dec 6, 2022

Replaceable units of an electrophotographic image forming device having a shipping or storage separator

Inventors: Gregory Alan Cavill (Winchester, KY); Randal Scott Williamson (Georgetown, KY)
Assignee: Lexmark International, Inc.
G03G21/1676G03G15/0865G03G21/168G03G21/1647G03G21/181G03G21/1846
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 11,520,282
App. No.
17/503,749
Granted
Dec 6, 2022
Kind
B2
Abstract

A toner cartridge according to one embodiment includes a body having a reservoir for storing toner and a rotatable developer roll mounted on the body and in fluid communication with the reservoir. A portion of an outer surface of the developer roll is exposed along a front of the body for supplying toner from the reservoir to a corresponding photoconductive drum on an imaging unit when the toner cartridge is installed on the imaging unit in an operative position of the toner cartridge relative to the imaging unit. A first engagement member positioned on a rear of the body is configured to engage a corresponding second engagement member on the imaging unit when the toner cartridge is installed on the imaging unit to retain the toner cartridge in a storage position of the toner cartridge relative to the imaging unit with the developer roll spaced away from the photoconductive drum.

Claims (11)

1. A toner cartridge for use with an imaging unit in an image forming device, comprising:

a body having a top, a bottom, a front and a rear positioned between a first side and a second side of the body, the body has a reservoir for holding toner;

a rotatable developer roll mounted on the body and in fluid communication with the reservoir, a portion of an outer surface of the developer roll is exposed along the front of the body for supplying toner from the reservoir to a corresponding photoconductive drum on the imaging unit when the toner cartridge is installed on the imaging unit in an operative position of the toner cartridge relative to the imaging unit;

a first alignment guide extending outward from the first side of the body and a second alignment guide extending outward from the second side of the body for positioning the toner cartridge on the imaging unit, the first and second alignment guides define a pivot axis about which the toner cartridge is pivotable relative to the imaging unit when the toner cartridge is installed on the imaging unit;

an angled contact surface on the rear of the body facing upward and rearward for contacting a corresponding hold-down on the imaging unit and receiving a bias force from the corresponding hold-down on the imaging unit for biasing the toner cartridge about the pivot axis when the toner cartridge is installed on the imaging unit in the operative position of the toner cartridge relative to the imaging unit; and

a first engagement member on the rear of the body, the first engagement member is configured to mate with a corresponding second engagement member on the imaging unit when the toner cartridge is installed on the imaging unit to retain the toner cartridge in a storage position of the toner cartridge relative to the imaging unit with the developer roll of the toner cartridge spaced away from the corresponding photoconductive drum of the imaging unit and with the toner cartridge pivoted about the pivot axis from the operative position of the toner cartridge relative to the imaging unit.

2. The toner cartridge of claim 1 , further comprising a handle on the rear of the body that is spaced above the first engagement member.

3. The toner cartridge of claim 2 , wherein the handle includes a thumb grip that protrudes outward away from the rear of the body.

4. The toner cartridge of claim 3 , wherein the thumb grip is concave downward.

5. The toner cartridge of claim 1 , wherein the first and second alignment guides are spaced above the developer roll along the front of the body.

6. The toner cartridge of claim 1 , wherein the first engagement member is spaced above the angled contact surface.

Assignments (5)
SECURITY INTEREST Recorded Jan 5, 2026
From: LEXMARK INTERNATIONAL, INC.
To: BANK TRUST COMPANY, NATIONAL ASSOCIATION
Reel/Frame 074202/0192 →
SECURITY INTEREST Recorded Jan 5, 2026
From: LEXMARK INTERNATIONAL, INC.
To: BANK TRUST COMPANY, NATIONAL ASSOCIATION
Reel/Frame 074202/0293 →
SECURITY INTEREST Recorded Sep 23, 2025
From: LEXMARK INTERNATIONAL, INC.
To: CITIBANK, N.A.
Reel/Frame 073007/0118 →
SECURITY INTEREST Recorded Sep 23, 2025
From: LEXMARK INTERNATIONAL, INC.
To: JEFFERIES FINANCE LLC
Reel/Frame 073007/0346 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 18, 2021
From: CAVILL, GREGORY ALAN; WILLIAMSON, RANDAL SCOTT
To: LEXMARK INTERNATIONAL, INC.
Reel/Frame 057820/0802 →