misregistration) for each paper size. The side misregistration amount is notified to the formatter through
the DC controller as a correction value of scanning start position for the second side printing.
Figure 1-63
Side misregistration sensor
1. Detects home-position
2. Detects right edge of paper
ENWW
Duplexer side misregistration detection
Outline of LED ass ' y
Photoreceiver sensor assembly
LED assembly
Side misregistration
LED for paper right edge detection
Paper
Sensor position
when detecting the home-position
Sensor position
when the paper is in niminal position
Sensor opsition
when side misregistration of paper
is detected
LED for
home-position detection
LED for
A4-R/A3 size detection
LED for Letter-R
size detection
Flag for home-position
detection
M1
CL1
Image starting position
Duplexer
81