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US 12,761,598 B2Granted
Wrap jam detection for fuser
AssigneeHewlett-Packard Development Company, L.P.
InventorHansang Oh
Life of this patent
Estimating the term…
Abstract
A fuser includes a fusing member, a pressing member facing the fusing member to form a fusing nip, and a wrap jam detection sensor comprising a light emitting portion to irradiate light to the fusing member and a light receiving portion to receive light diffusely reflected from the fusing member.
Claims15
A fuser comprising:
- a fusing member;
- a pressing member facing the fusing member to form a fusing nip;
- and
- a wrap jam detection sensor comprising a light emitting portion to irradiate light to the fusing member and a light receiving portion to receive light diffusely reflected from the fusing member, wherein the wrap jam detection sensor is arranged such that specularly reflected light from the fusing member is not incident on the light receiving portion but diffusely reflected light is incident on the light receiving portion.
1 more element
An image forming apparatus comprising:
- an image forming portion to form a toner image on a print medium;
- a fuser to fuse the toner image to the print medium, the fuser comprising:
- a fusing member;
- a pressing member facing the fusing member to form a fusing nip;
- and
- a wrap jam detection sensor comprising a light emitting portion to irradiate light to the fusing member and a light receiving portion to receive light diffusely reflected from the fusing member, wherein the wrap jam detection sensor is arranged such that specularly reflected light from the fusing member is not incident on the light receiving portion but diffusely reflected light is incident on the light receiving portion;
- and
- a processor to identify whether a jam is present according to the wrap jam detection sensor.
5 more elements
Dependencies are inferred from the claim text.