1. An inkjet recording apparatus comprising:
an inkjet head that ejects a liquid functional material toward a recording medium based on image signals;
a recording medium conveying unit that conveys the recording medium to a position opposing the inkjet head;
a supply path that supplies the liquid functional material to the inkjet head;
a reservoir that communicates the supply path, and that reserves the liquid functional material; and
a degassing mechanism that is provided in one of the inkjet head, the supply path and the reservoir, and that includes a degassing device and a vacuum pump,
wherein
the degassing vacuum degree of the degassing mechanism is approximately 0.01 to 0.06 atm,
further comprising:
a control interface (PC) that includes a table showing a relationship between a minimum boiling point of compounds contained in the liquid functional material and the degassing vacuum degree;
a pressure controller that controls a degassing vacuum degree of the degassing mechanism; and
a vacuum gauge that measures the degassing vacuum degree of the degassing mechanism,
wherein
the control interface (PC) compares a value measured by the vacuum gauge with a target value, decides the target value based on the minimum boiling point, which is shown in the table, of the compounds of the liquid functional material, and controls the pressure controller to make coincident the value measured by the vacuum gauge with the target value.
2. The inkjet recording apparatus as claimed in claim 1,
wherein
the degassing vacuum degree of the degassing mechanism is approximately 0.06 atm.
3. The inkjet recording apparatus as claimed in claim 1,
wherein
the degassing vacuum degree of the degassing mechanism is approximately 0.04 atm.
4. The inkjet recording apparatus as claimed in claim 1,
wherein
the degassing vacuum degree of the degassing mechanism is approximately 0.03 atm.
5. The inkjet recording apparatus as claimed in claim 1,
wherein
the degassing vacuum degree of the degassing mechanism is approximately 0.02 atm.
6. The inkjet recording apparatus as claimed in claim 1,
wherein
the degassing vacuum degree of the degassing mechanism is approximately 0.01 atm.
7. The inkjet recording apparatus as claimed in claim 1,
wherein
the degassing vacuum degree of the degassing mechanism is determined by performing a proportional distribution based on a gradient of line connecting respective degassing vacuum degrees at nearest minimum boiling points above and below the minimum boiling point of the compound as determining object.
8. The inkjet recording apparatus as claimed in claim 1, wherein the liquid functional material comprises an ultraviolet-curable material.
9. The inkjet recording apparatus as claimed in claim 1, further comprising:
means of switching the degassing mechanism into a halt state.
10. The inkjet recording apparatus as claimed in claim 1, wherein the reservoir is provided with an air-feeding mechanism.
11. The inkjet recording apparatus as claimed in claim 1, further comprising:
an air-exposure valve disposed upstream of the inkjet head, the air-exposure valve is provided to expose the liquid functional material to air at the stoppage of image formation.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A guide pole mounted trailer light system apparatus comprising:
(a) a housing constructed of a PVC guide pole stock, wherein the diameter of said PVC guide pole stock is the same diameter as the PVC guide pole to which the housing is attached and wherein the housing is positioned with the central axis of the PVC guide pole stock in the vertical direction which is in alignment with the PVC guide pole to which the housing is attached;
(b) a single pair of openings, and only a single pair of openings, disposed on opposite sides of said housing comprising a front side opening and a rear side opening, wherein the front side opening is smaller than the rear side opening but still large enough to be visible to the driver of the vehicle pulling the trailer and the rear side opening is large enough to be visible to following drivers from a much further distance;
(c) translucent coverings for each opening of said single pair of openings, wherein the translucent coverings over the rear opening on the side of the housing opposite the front of the trailer is covered by a red translucent material and the front opening on the side of the housing closest to the front of the trailer is covered by an amber translucent material;
(d) a top end piece, removably attached to said housing and fitting over said housing to keep water and other substances out;
(e) a single electrically powered light source, fixedly mounted inside the housing between the front and rear covered openings, comprising one, and only one, light emitting source which emits light out of the respective front side opening and rear side opening of the housing;
(f) a shallow, concavely curved reflective surface fixedly attached to a portion of an interior surface of said housing, said portion being located opposite the rear side opening and just below the front side opening, said shallow, concavely curved reflective surface being positioned so as direct more light out of the rear opening and so as not to obstruct light passing forward through the front opening; and
(g) an open bottom piece, fixedly attached to the housing, that facilitates temporary and removable attachment to the guide pole of the trailer.