Canon imagePRESS C1 Service Manual - page 493
Chapter 8
8-28
8.5.5 Pickup Control (Cassette 2 to 4)
0012-8498
imagePRESS C1 P / imagePRESS C1 / imagePRESS C1+ (Printer) / imagePRESS C1+
After the pickup, a paper is stopped at the specified position once, and then, is delivered to the point of the registration. (Pre-registration stop control)
The pickup control is the control to make up for the variation in pickup (timing jam, delay jam) due to the paper type, size, and environmental condition, and keeping
the constant reaching time of paper to the registration point.
In addition, in order to achieve the productivity, the speed at the interval from the pre-registration point to the registration point is accelerated.
The detail of control at each cassette (Cassette 2 to 4) is the same; thus, the following is the explanation of the pickup control using the cassette 2 pickup as an
example.
[1] Cassette 2 pickup roller
[2] Vertical path 2 roller
[3] Registration roller
PS5/6: OHT sensor (light-emitting/light-receiving)
PS12: Registration sensor
PS54: Vertical path 2 sensor
Interval
Paper delivery speed
[A]
Pickup start position to pre-registration stop position (A point 25 mm downstream from the
vertical path 2 roller. Vertical path 2 sensor standard.)
500 mm/sec
[B]
Pre-registration stop position to OHT sensor/registration sensor
600 mm/sec
[C]
OHT sensor/registration sensor to registration position
Normal speed mode: 500 mm/sec
1/3 speed mode: 285 mm/sec
[3]
[2]
[1]
[A]
[B]
[C]
PS54
PS12
PS5,6