MX-3114N OPERATIONAL DESCRIPTIONS 13 – 43
b. Image density detection and registration detection
operation
The image density detection and the image registration detection
are performed the sensors which are provided separately on the
front frame side and the rear frame side.
b-1. Functions and operations of the color image density
sensor and the image registration sensor F (REGS F)
provided on the front frame side
When the process control is performed with one sensor, the color
toner patch density is detected. When the image registration
adjustment is performed, the image registration shift on the front
frame side is detected.
A shutter plate is provided on the sensor. Before execution of the
process control and the automatic registration adjustment, the
standard reflection plate is closed and the sensor sensitivity adjust-
ment is performed by using the standard reflection plate.
b-2. Functions and operations of the black image density
sensor and the image registration sensor R (REGS R)
provided on the rear frame side
When the process control is performed with one sensor, the black
toner patch density is detected. When the image registration
adjustment is performed, the image registration shift on the rear
frame side is detected.
The sensor sensitivity adjustment is performed by using the stan-
dard reflection plate before execution of the process control and
the automatic registration adjustment.
