Patent Number: 
Section: claims

1. A light-shielding mechanism for preventing a sheet-like member from being irradiated with unwanted light while the sheet-like member is being fed and processed in a sheet-like member processing apparatus, comprising: a charge-eliminating brush disposed on a feed path for the sheet-like member for eliminating electric charges from the sheet-like member in contact therewith;  said charge-eliminating brush comprising bristles set at a density ranging from 3,000 to 5,000 bristles/inch and having a thickness ranging from 10 denier to 300 denier. 2. A light-shielding mechanism according to  claim 1 , wherein said charge-eliminating brush comprises a first charge-eliminating brush and a second charge-eliminating brush which are disposed on said feed path in confronting relationship to each other and one on each side of said sheet-like member in a transverse direction thereof. claim 1 3. A light-shielding mechanism according to  claim 2 , wherein said charge-eliminating brush comprises a third charge-eliminating brush and a fourth charge-eliminating brush which are disposed on said feed path in confronting relationship to each other and one on each edge of said sheet-like member. claim 2 4. A light-shielding mechanism according to  claim 1 , wherein said charge-eliminating brush comprise bristles set at a density ranging from 3,500 to 4,400 bristles/inch and having a thickness ranging from 50 denier to 200 denier. claim 1 5. A light-shielding mechanism according to  claim 4 , wherein said charge-eliminating brush comprises a first charge-eliminating brush and a second charge-eliminating brush which are disposed on said feed path in confronting to relationship to each other and one on each side of said sheet-like member in a transverse direction thereof. claim 4 6. A light-shielding mechanism according to  claim 5 , wherein said charge-eliminating brush comprises a third charge-eliminating brush and a fourth charge-eliminating brush which are disposed on said feed path in confronting relationship to each other and one on each edge of said sheet-like member. claim 5 7. A light-shielding mechanism according to  claim 1 , wherein said sheet-like member comprises a stimulable phosphor sheet, said sheet-like member processing apparatus having an erasing unit for erasing remaining radiation information from said stimulable phosphor sheet, said erasing unit having a casing with an inlet defined therein, said charge-eliminating brush being mounted on said inlet. claim 1 8. A light-shielding mechanism according to  claim 1 , wherein said sheet-like member comprises a stimulable phosphor sheet, said sheet-like member processing apparatus having an erasing unit for erasing remaining radiation information from said stimulable phosphor sheet, said erasing unit having a casing with an outlet defined therein, said charge-eliminating brush being mounted on said outlet. claim 1