Patent EA-000427-B1 (EA)
Title: Pressure-developing device and recording device
Inventor: GOMI MASAO
IPC: G03B27/32
Filed: 1997-11-27
Abstract: 1. A pressure developing apparatus moving along a supportive member to perform pressure development on a recording sheet, comprising: a first rotating member moving by revolving to pressurize the recording sheet; and a second rotating member moving by revolving with respect to said supportive member, said second rotating member being able to transmit a load applied to said first rotating member to said supportive member. 2. A pressure developing apparatus according to Claim 1, wherein said first rotating member moves by revolving while pressurizing the recording sheet and said second rotating member moves by revolving between said first rotating member and said supportive member while being in contact with said first rotating member and said supportive member. 3. A pressure developing apparatus according to Claim 1, further comprising a transmission apparatus elastically transmitting a load applied to said first rotating member to said second rotating member. 4. A pressure developing apparatus according to Claim 1, characterized by an arrangement in that a center of rotation of said second rotating member is offset relative to a center of rotation of said first rotating member. 5. A pressure developing apparatus according to Claim 1, wherein the pressure developing apparatus has a plurality of said first or second rotating members and at least one of said first or second rotating members moves by revolving while being in contact with a plurality of said second or first rotating members. 6. A pressure developing apparatus according to Claim 5, further comprising a holding apparatus for applying an elastic force in such a direction as to reduce a distance among said plurality of first rotating members or among said plurality of second rotating members. 7. A pressure developing apparatus according to Claim 1, wherein said supportive member is a carriage shaft extending in scanning directions of the recording sheet. 8. A pressure developing apparatus according to Claim 1, wherein said first rotating member has a shape for contacting the recording sheet over a narrow continuous area. 9. A pressure developing mechanism having a pressure developing apparatus according to Claim 1 and a sheet supporting member for supporting a recording sheet from a side opposite to said first rotating member, wherein a protrusion extending in a direction in which said first rotating member moves is provided in an area of the sheet supporting member where said first rotating member moves. 10. A pressure developing mechanism having a pressure developing apparatus according to Claim 1, a sheet supporting member for supporting a recording sheet from a side opposite to said first rotating member, and a pressure supporting apparatus for elastically supporting said sheet supporting member to said first rotating member while applying pressure thereto. 11. A pressure developing mechanism according to Claim 10, wherein a guide member that is deformable into a smooth shape in accordance with a cross section of the recording sheet is provided between said first rotating member and the recording sheet along a direction in which said first rotating member moves. 12. A pressure developing mechanism according to Claim 11, wherein said guide member is a number of small divided pieces ranging along a direction in which said first rotating member moves. 13. A recorder comprising: a pressure developing apparatus according to Claim 1; an exposure apparatus for exposing a photosensitive recording sheet; a sheet-conveying apparatus for conveying the recording sheet exposed by said exposure apparatus to said pressure developing apparatus; and a driving apparatus for causing said pressure developing apparatus to reciprocate along said supportive member which extends in scanning directions substantially perpendicular to the sheet-conveying direction of said sheet-conveying apparatus. 14. A recorder according to Claim 13, wherein said exposure apparatus is able to move along said supportive member and said driving apparatus causes said exposure apparatus to reciprocate together with said pressure developing apparatus along said supportive member.