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Main Unit Theory of Operation Print Head (PH)
2-3
II Composition/Operation
2. Print Head (PH)
2.1 Composition
Key Name Function/system
[1]
G2 Lens/Y, M, C, K • Condenses the incident laser light and irradiates the K Photo
Conductor or Return Mirror/2nd of each color with the con-
densed laser light.
[2] SOS Lens • Condenses the incident laser light/K onto the SOS Sensor.
[3] SOS Sensor • Generates an SOS signal based on the incident laser light/K.
[4]
Separation Mirror • Reflects the laser light/K, the condensing angle of which has
been corrected by the G1 Lens, onto the G2 Lens/K.
• Reflects the laser light/K (for SOS), the condensing angle of
which has been corrected by the G1 Lens, onto the SOS Lens.
[5]
Return Mirror/1st • Reflects the laser light/Y, M, C condensed by the G1 Lens onto
the G2 Lens/Y, M, C.
[6]
Synthetic Mirror/Y, M, C, K • Reflects the laser light emitted by the semiconductor laser of
each color onto the Polygon Mirror.
[7] Semiconductor laser/Y, M, C, K • Emits a laser light of each color.
[8]
Polygon Mirror • Lets the incident laser light scan in the main scan direction and
then strike the Separation Mirror.
[9] G1 Lens • Corrects the condensing angle of the incident laser light.
[10]
Return Mirror/2nd • Reflects the laser light condensed by the G2 Lens onto the sur-
face of the Photo Conductor/Y, M, C.
4138to2002c0
4138to2501c0
4138to2001c0
[1]
[2]
[3]
[6]
[7]
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[9]
[10]
[1]
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