Specifications

14-1. Pre-Image Transfer Erase Lamp
•
This copier is equipped with Pre-Image Transfer Erase Lamp LA4 whose
light strikes the surface of the PC Drum after development to improve
image transfer and paper separation.
•
A cold-cathode discharge tube is used for LA4. It emits light of short
wavelength to the surface of the PC Drum.
14
PRE-IMAGE TRANSFER ERASE LAMP
14-2. Pre-Image Transfer Erase Lamp LA4 ON/OFF Control
LA4 is turned ON when Pre-Image Transfer Lamp Power Supply PU4 is
turned ON by the signal output from pin 92 of IC4A on Master Board PWB-A.
<LA4 ON Timing>
PU4 turns ON to turn ON LA4 approx. 450 msec. after PC Drum Drive Motor
M5 has been energized (p. M-26).
<LA4 OFF Timing>
PU4 turns OFF to turn OFF LA4 approx. 890 msec. after Scanner Control
Processor Board PWB-J has output a SCEND signal.
LA4
LA4
M-93