公开(公告)号：US10281851B2

公开(公告)日：2019-05-07

申请号：US16056737

申请日：2018-08-07

Applicant: LEXMARK INTERNATIONAL, INC.

Inventor： Daniel Lee Carter ,  Mark Stephen Malone ,  Brian Anthony Reichert

IPC: G03G15/20 ,  G03G21/16

Abstract: An imaging device has a drive gear assembly which operatively engages with a backup roll gear of a fuser assembly when the fuser assembly is inserted into the imaging device. Such engagement causes the drive gear assembly to rotate, and in turn rotates a drive motor coupled to the drive gear assembly. The drive motor includes Hall Effect sensors associated with a sensor arrangement that senses rotation of the motor. During rotation of the drive motor, sensor signals are transmitted to a controller of the imaging device, the controller counting rising and falling signal edges of the received sensor signals. Based on the number of rising and falling signal edges, a message is sent to a user of the imaging device whether or not the installation of the fuser assembly was successful.

公开(公告)号：US10120305B1

公开(公告)日：2018-11-06

申请号：US15728588

申请日：2017-10-10

Applicant: LEXMARK INTERNATIONAL, INC.

Inventor： Daniel Lee Carter ,  Mark Stephen Malone ,  Brian Anthony Reichert

IPC: G03G15/20 ,  G03G21/16

Abstract: An imaging device has a drive gear assembly which operatively engages with a backup roll gear of a fuser assembly when the fuser assembly is inserted into the imaging device. Such engagement causes the drive gear assembly to rotate, and in turn rotates a drive motor coupled to the drive gear assembly. The drive motor includes Hall Effect sensors associated with a sensor arrangement that senses rotation of the motor. During rotation of the drive motor, sensor signals are transmitted to a controller of the imaging device, the controller counting rising and falling signal edges of the received sensor signals. Based on the number of rising and falling signal edges, a message is sent to a user of the imaging device whether or not the installation of the fuser assembly was successful.