Canon CLBR 460ps Service Manual page 359

Timing chart for duplexing unit printing one A4-size sheet
Sequence STBY
PRINT signal (/PRNT)
1
2 Top of page signal
Duplex pick-up command
3
Reversing unit paper sensor (PS103)
4
5
6 Duplex pick-up sensor (PS102)
7 Registration paper sensor (PS1)
8
9
10 Reversing motor (M101)
11 Side registration motor (M102)
Duplex feed motor (M103)
12
/PRNT signal
INTR
Approx1.1
Counter clockwise rotation
PRNT
Duplexing unit specification
Duplex pick-up start
Approx3.8
Approx0.1
Approx0.6 Approx3.3
Approx1.2
Clockwise rotation
Approx1.8
Duplex pick-up stop Refeed
Approx1.0
Approx0.2
Approx7.8
(Unit: second)
LSTR STBY
A - 23