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EP0225484A1 Expired / Lapsed EP ⏱️ 0.0 years remaining

Flash fixing apparatus

Assignee: Ushio Denki KK
•
Filing: 1986-11-05
•
Granted: —
•
Expires: 2006-11-05
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Abstract

Abstract A flash fixing apparatus is provided for fixing an unfixed toner image on a base material by light radiated from a flash lamp. The apparatus includes a conveyor mechanism (1) for conveying the base material, the flash lamp (4) for radiating light toward the unfixed toner image on the base material which is being conveyed by the conveyor mechanism (1), and an auxiliary heating system for additionally heating the base material. The conveyor mechanism (1) comprises a negative pressure compartment having an upper board (21), through which a plurality of suction holes (22) are formed, and a plurality of conveyor belts (11) arranged spacedly from one another in such a manner that the coveyor belts are caused to move over the upper board (21) of the negative pressure compartment (2). The auxiliary heating system comprises at least one auxiliary heater (3) disposed within the negative pressure compartment (2) and adapted to heat the upper board (21) of the negative pressure compartment (2).

Inventors

  • 👤 Toyohiko Kumada
  • 👤 Tatsuo Horiuchi

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-02 09:36
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/20; G03G15/2003; G03G15/2007; G03G15/201

Claims Analysis

Total Claims: 5
Claim 1
Independent Claim 159 words
A flash fixing apparatus for fixing an unfixed toner image on a base material by light radiated from a flash lamp, comprising: a conveyor mechanism (1) for conveying the base material, the flash lamp (4) for radiating light toward the unfixed toner image on the base material which is being conveyed by the conveyor mechanism (1), and an auxiliary heating system for additionally heating the base material; said conveyor mechanism (1) comprising a negative pressure compartment having an upper board (21) through which a plurality of suction holes (22) are formed, and a plurality of conveyor belts (11) arranged spacedly from one another in such a manner that the conveyor belts are caused to move over the upper board (21) of the negative pressure compartment (2); and said auxiliary heating system comprising at least one auxiliary heater (3) disposed within the negative pressure compartment (2) and adapted to heat the upper board (21) of the negative pressure compartment (2).
Claim 2
Dependent Claim 159 words
A flash fixing apparatus for fixing an unfixed toner image on a base material by light radiated from a flash lamp, comprising: a conveyor mechanism (1) for conveying the base material, the flash lamp (4) for radiating light toward the unfixed toner image on the base material which is being conveyed by the conveyor mechanism (1), and an auxiliary heating system for additionally heating the base material; said conveyor mechanism (1) comprising a negative pressure compartment having an upper board (21) through which a plurality of suction holes (22) are formed, and a plurality of conveyor belts (11) arranged spacedly from one another in such a manner that the conveyor belts are caused to move over the upper board (21) of the negative pressure compartment (2); and said auxiliary heating system comprising at least one auxiliary heater (3) disposed within the negative pressure compartment (2) and adapted to heat the upper board (21) of the negative pressure compartment (2).
Claim 3
Dependent Claim 46 words
The flash fixing apparatus as claimed in Claim 1, wherein the auxiliary heater (3) is feedback controlled by the temperature of the upper board (21) of the negative pressure compartment (2) so as to maintain the temperature of the upper board (21) at a constant level.
Claim 4
Dependent Claim 21 words
The flash fixing apparatus as claimed in Claim 1 or 2, wherein the auxiliary heater (3) is a halogen incandescent lamp.
Claim 5
Dependent Claim 48 words
The flash fixing'apparatus as claimed in any one Claims 1 - 3, wherein the auxiliary heater (3) heats the upper board (21) of the negative pressure compartment (2) primarily at an area located on the side upstream of an area exposed to the light from the flash lamp.

References Cited (Backward Citations)

GB1001140A Cited
DE2008892A1 Cited
DE2303810B2 Cited
US4121888A Cited

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