Patent ID: 11886133
Assignee: XEROX CORPORATION
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. A printing device comprising:
a main marking station comprising:
a transfer member comprising:
a shaft,
a rigid cylindrical core member, mounted on the shaft,
an outer layer supported on the rigid cylindrical core member, the outer layer defining an outer surface of the transfer member, which is configured for receiving a toner image thereon, the cylindrical core and outer layer having a same axis of rotation as the shaft, and
an electrical conductor for electrically biasing the rigid cylindrical core;

a plurality of color stations, each of the color stations including a photoreceptor drum, each of the photoreceptor drums and the outer surface of the transfer member defining a respective first transfer nip therebetween, whereby toner image layers are transferred from the photoreceptor drum to the transfer member;
at least one of:
a pre-marking station, located upstream of the main marking station, which prints a toner image layer on an associated sheet of print media, and
a post-marking station, located downstream of the main marking station, which prints a toner image layer on the associated sheet of print media,
whereby a toner image is formed on the associated sheet from two or more toner image layers printed by the main marking station and the at least one of the pre-marking station and the post-marking station;

a print media path which conveys associated sheets of print media to a second transfer nip where the toner image layers are transferred from the transfer member to the sheets to form toner images; and
a fuser, downstream of the main marking station, which fuses the toner images more permanently to the sheets, the print media path connecting the main marking station and the at least one of the pre-marking station and post-marking station with the fuser.