Exposure device and image formation device
Sealing gaps and holes in the exposure device with a sealant prevents foreign matter ingress, addressing image defects caused by holder holes and ensuring effective operation.
JP2025181089APending Publication Date: 2025-12-11CANON KK
Patent Information
- Application Number
- JP2024088850
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-05-31
- Publication Date
- 2025-12-11
Smart Images
Figure 2025181089000001_ABST
Abstract
To suppress entering of a foreign matter from outside to a space extending form a light emitting element to a lens array.SOLUTION: An exposure device includes: a substrate in which a plurality of light emitting elements are mounted along a longitudinal direction being an axial direction of a photoreceptor; a lens array condensing light emitted from the light emitting elements to the photoreceptor; and a holding member holding the substrate and the lens array. The holding member includes at least one hole provided in a region in which a gap between the lens array and the holding member and a gap between the substrate and the holding member are sealed by a sealant, the hole communicating the outside and the inside of the holding member. The hole is sealed by a sealant.SELECTED DRAWING: Figure 12
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Citation Information
Patent Citations
Exposure head and image forming apparatus
JP2023161242A