# US 8,770,576 B2 · Sheet feed unit and image forming apparatus including same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,770,576 B2 - Document ID: US8770576B2 - Status: Granted - Kind: B2 - Application number: 13/766,121 - Filed: 2013-02-13 - Published: 2013-09-05 - Granted: 2014-07-08 - Earliest claimed: 2012-03-01 - Assignees: Ricoh Company, Ltd. - Applicants: Ippei Kimura; Takamitsu Ikematsu; Kaoru Tada; Ikuo Fujii - Inventors: Ippei Kimura; Takamitsu Ikematsu; Yasuo Matsuyama; Kaoru Tada; Ikuo Fujii - Web page: https://patentgrep.com/patent/US8770576B2 ## CPC - B65H 1/00: Supports or magazines for piles from which articles are to be separated (carriers used for associating, collating, or gathering articles B65H39/00) - B65H 1/266: {Support fully or partially removable from the handling machine, e.g. cassette, drawer (B65H1/027 takes precedence)} - B65H 2402/32: Sliding support means - B65H 2402/441: movable for facilitating access to area inside the housing, e.g. pivoting or sliding - B65H 2405/313: with integrated handling means, e.g. separating means - B65H 2511/15: Height, e.g. of stack - B65H 2551/20: Display means; Information output means - B65H: HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES ## Abstract A sheet feed unit includes a medium container configured to contain sheet-like recording media; a bottom plate disposed in the medium container and configured to accommodate the recording media thereon; a sheet feed device configured to feed out the recording media contained in the medium container; a main body of the sheet feed unit, which the medium container can be inserted into and pulled out from, including the sheet feed device; and a displaying member configured to display a remaining level of the recording media in the medium container, the displaying member including a first display oriented in a first direction and a second display oriented in a second direction perpendicular to the first direction. The sheet feed unit improves a freeness in the observable range of the displaying member and the remaining level of the recording media in the medium container can be more accurately ascertained. ## Claims ### Claim 1 A sheet feed unit comprising: a medium container configured to contain recording media; a bottom plate disposed in the medium container, on which the recording media is stackable; a sheet feed device configured to feed out the recording media contained in the medium container; a main body of the sheet feed unit, which the medium container can be inserted into and pulled out from, including the sheet feed device; and a displaying member configured to display a remaining level of the recording media contained in the medium container, the displaying member including a first display oriented in a first direction and a second display oriented in a second direction perpendicular to the first direction, wherein the first display and the second display are arranged vertically with respect to the bottom plate at a same corner portion of the main body of the sheet feed unit. ### Claim 2 (depends on 1) The sheet feed unit as claimed in claim 1, wherein the medium container is configured to be pulled out in two directions, a first direction via the sheet feed device and a second direction perpendicular to the first direction. ### Claim 3 (depends on 2) The sheet feed unit as claimed in claim 2, wherein the first display and the second display are disposed at a corner portion adjacent to each of a first passing area through which the medium container passes when pulled out in the first direction and to a second passing area through which the medium container passes when pulled out in the second direction perpendicular to the first direction. ### Claim 4 (depends on 1) The sheet feed unit as claimed in claim 1, further comprising a contact portion contacting the bottom plate and moving responsive to a movement of the bottom plate, wherein the first display and the second display are configured to move responsive to the contact portion. ### Claim 5 (depends on 4) The sheet feed unit as claimed in claim 4, wherein the contact portion, the first display, and the second display are formed as a single integrated unit. ### Claim 6 (depends on 4) The sheet feed unit as claimed in claim 4, further comprising a run-off portion, disposed to either or both of the contact portion or parts interfering with the contact portion during insertion/removal of the medium container with respect to the main body of the sheet feed unit so as to prevent interference between the medium container and the main body of the sheet feed unit. ### Claim 7 (depends on 6) The sheet feed unit as claimed in claim 6, wherein the run-off portion comprises tapered surfaces. ### Claim 8 (depends on 1) The sheet feed unit as claimed in claim 1, wherein the first and the second displays form a single integrated unit. ### Claim 9 (depends on 1) The sheet feed unit as claimed in claim 1, further comprising a window disposed in an exterior surface of the main body of the sheet feed unit, wherein the displaying member is disposed at the window. ### Claim 10 (depends on 9) The sheet feed unit as claimed in claim 9, wherein the window includes a slanted surface formed on an opening edge thereof, the slanted surface extending an opening area of the window outward from interior toward exterior. ### Claim 11 (depends on 9) The sheet feed unit as claimed in claim 9, wherein a leading edge of the displaying member is recessed in the exterior surface of the sheet feed unit. ### Claim 12 (depends on 1) An image forming apparatus comprising a sheet feed unit as claimed in claim 1. ### Claim 13 A sheet feed unit comprising: a medium container configured to contain sheet-like recording media; a bottom plate disposed in the medium container and configured to place the recording media thereon; a sheet feed device configured to feed out the recording media contained in the medium container; a main body of the sheet feed unit, which the medium container can be inserted into and pulled out from, including the sheet feed device, wherein the sheet feed unit is configured to enable the medium container to be pulled in a sheet feed direction via the sheet feed device and in a direction perpendicular to the sheet feed direction; and a displaying member to display a remaining level of a stack of recording media contained in the medium container disposed in the main body of the sheet feed unit, wherein the displaying member is arranged vertically with respect to the bottom plate at a corner portion of the main body of the sheet feed unit. ### Claim 14 (depends on 13) The sheet feed unit as claimed in claim 13, wherein the displaying member is disposed at a corner portion adjacent to each of a first passing area through which the medium container passes when pulled out in the sheet feed direction and to a second passing area through which the medium container passes when pulled out in the direction perpendicular to the sheet feed direction. ### Claim 15 (depends on 13) The sheet feed unit as claimed in claim 13, further comprising a contact portion, wherein the displaying member is movable responsive to a moving of the contact portion. ### Claim 16 (depends on 15) The sheet feed unit as claimed in claim 15, wherein the contact portion and the displaying member form a single integrated unit. ### Claim 17 (depends on 13) The sheet feed unit as claimed in claim 13, wherein the contact portion contacts the bottom plate outside an area where the stack of recording media is placed. ### Claim 18 (depends on 13) The sheet feed unit as claimed in claim 13, wherein the displaying member includes a first display oriented in a first direction and a second display oriented in a second direction perpendicular to the first direction. ### Claim 19 (depends on 13) The sheet feed unit as claimed in claim 13, wherein the displaying member is disposed in a direction intersecting with both the sheet feed direction and the direction perpendicular to the sheet feed direction.