purpose; Thereby providing a photoreceptor with less variation in light quantity of the light emitting dots.;Configuration; On the inner surface of the anode substrate 2 of the envelope 4, light emitting dots 8 are arranged in two rows in zigzags. Between the two rows of the light emitting dots 8 and between the wiring conductors 6 of the light emitting dots 8, there is a large-sized control electrode. On the two rows of the light emitting dots 8, there are cathodes 22, respectively. The wiring conductor 6 connected to the light emitting dot 8 and the subsequent outer portion of the upper surface of the anode substrate 2 are covered with the insulating layer 12. On the insulating layer 12, the driver IC 13 and the wiring conductor 6 are connected by a wire 15. A shielding member 21 is provided on the edge portion 12a inside the insulating layer 12. [ The shielding member 21 is higher than the gap between the light emitting dot 8 and the cathode 22. [ The shielding member 21 divides most of the insulating layer 12 and the light emitting dot 8 so that the electrons charged in the insulating layer 12 do not change the light amount of the light emitting dot 8. The shielding member 21 shields the wire 15 and the light emitting dot 8 so that the electric field of the wire 15 does not change the light quantity of the light emitting dot 8. [
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