Canon IMAGERUNNER 2530, Service Manual

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Technology > Laser Exposure System > Basic Sequence > Basic Sequence
Technology > Laser Exposure System > Basic Sequence > Basic Sequence
Basic Sequence
Basic Sequence
When the control panel power switch is turned on, the laser scanner starts to rotate; when the
motor rotationreaches its target revolution, the machine turns on the laser unit. Thereafter,
when the Start key is turned on, themachine generates the image request signal (PVREQ) on
the printer side, and turns on the laser beam withreference to the generated signal.
In the case of A4, 1 sheet
*1: The BD signal is generated in reference to the light from laser C. The BD sensor of the BD PCB
receives light from laser C but not light from laser D.
PRINT STBY STBY INTR
PVREQ
BD
BD detection/APC control ON
APC control ON
Laser C
BD detention/APC control ON
Laser C
Laser D
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