Patent ID: 11860556
Assignee: CANON KABUSHIKI KAISHA
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 1:
2. The image forming apparatus according to claim 1, wherein the process unit further includes:
an attachment member attached to the frame so as to be disposed between the circuit board and the frame;
a first light guide portion configured to guide the light emitted from the light emitting portion to the interior of the storage portion, the first light guide portion being provided on the frame;
a second light guide portion configured to guide the light, having passed through the first light guide portion and the interior of the storage portion, to the light receiving portion, the second light guide portion being provided on the frame; and
a positioning portion configured to position the attachment member and the circuit board by engaging with the attachment member and the circuit board, the positioning portion being provided on the frame, and
wherein the attachment member includes:
a first penetrating hole portion in which the first light guide portion is inserted; and
a second penetrating hole portion in which the second light guide portion is inserted.