Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
162 words
An electrostatic image forming method for an image forming apparatus, said apparatus being provided with a photoconductive element having an electrode layer and a photoconductive layer, and a recording medium having at least a dielectric layer, at least one of the photoconductive element and the recording medium having transmissivity, said method comprising the steps of: (a) causing the photoconductive layer of the photoconductive element and the dielectric layer of the recording medium to face and make close contact with each other with the intermediary of an air gap; (b) applying a DC voltage across the electrode layer of the photoconductive element and the dielectric layer of the recording medium; (c) projecting a light image for exposure from a back of one of the photoconductive element and the recording medium which has transmissivity; and (d) controlling a light quantity of the light image; whereby a positive electrostatic image or a negative electrostatic image is formed on the dielectric layer of the recording medium.
Claim 2
Dependent Claim
162 words
An electrostatic image forming method for an image forming apparatus, said apparatus being provided with a photoconductive element having an electrode layer and a photoconductive layer, and a recording medium having at least a dielectric layer, at least one of the photoconductive element and the recording medium having transmissivity, said method comprising the steps of: (a) causing the photoconductive layer of the photoconductive element and the dielectric layer of the recording medium to face and make close contact with each other with the intermediary of an air gap; (b) applying a DC voltage across the electrode layer of the photoconductive element and the dielectric layer of the recording medium; (c) projecting a light image for exposure from a back of one of the photoconductive element and the recording medium which has transmissivity; and (d) controlling a light quantity of the light image; whereby a positive electrostatic image or a negative electrostatic image is formed on the dielectric layer of the recording medium.
Claim 3
Dependent Claim
32 words
A method as claimed in claim 1, wherein the step (d) comprises (e) projecting a light image having a light quantity region which is greater than a predetermined quantity of exposing light.
Claim 4
Dependent Claim
49 words
A method as claimed in claim 1, wherein the step (d) comprises (e), prior to the step (c), performing full-surface exposure to a predetermined quantity of exposing light while applying a DC voltage across the electrode layer of the photoconductive element and the dielectric layer of the recording medium.
Claim 5
Dependent Claim
48 words
A method as claimed in claim 1, wherein the step (d) comprises (e), after the step (c), performing full-surface exposure to a predetermined quantity of exposing light while applying a DC voltage across the electrode layer of the photoconductive element and the dielectric layer of the recording medium.
Claim 6
Dependent Claim
50 words
A method as claimed in claim 1, wherein the step (d) comprises (e) presetting a plurality of quantities of exposing light and (f) selecting one of the present quantities of exposing light, whereby a positive or a negative electrostatic image is formed depending upon the selected quantity of exposing light.
Claim 7
Dependent Claim
22 words
A method as claimed in claim 5, wherein the step (f) comprises (g) changing a duration of application of the DC voltage.
Claim 8
Dependent Claim
45 words
A method as claimed in claim 1, further comprising the step of (e) providing a predetermined period of time for adaptation by, before developing the formed electrostatic image, leaving the electrostatic image in a condition in which an electric field is or is not applied.