Paper Detection; Paper Size Detection; Fixing/Registration Assembly - Canon imageRUNNER ADVANCE C350 series Service Manual

2
Technical Explanation > Pickup / Feed System > Controls > Fixing/Registration Assembly
● Pickup Retry Control
If the Pre-Registration Sensor (PS03) is not turned ON within the specified period of time
after the start of pickup operation, the Cassette 1_Multi-purpose Tray Pickup Motor (M05)
is suspended once, and the pickup operation is executed again.
NOTE:
This control is executed in the following cases:
• The top paper of a B&W job
• Envelope/Heavy Paper 3/Label Paper/Transparency whose length is 190 mm or more
● Paper Detection
Presence/absence of paper is detected by the Multi-purpose Tray Paper Sensor (PS03).
When absence of paper is detected but the same size and same type of papers exist in
another paper source, auto cassette change is executed.
● Paper Size Detection
The machine does not have the paper size detection function. The user has to specify the
paper size in the Multi-purpose Tray using the Control Panel.
In addition, the user has to register the fixed size in UI menu.
2 Technical Explanation > Pickup / Feed System > Controls > Fixing/Registration Assembly

■ Fixing/Registration Assembly

● Registration Control
It is a control to align paper and image on the ITB at a specified timing.
Based on the leading edge detection by the Pre-Registration Sensor (PS04), the following 2
controls are used:
• Non-stop registration control
• Stop registration control
Basically, the non-stop registration control is used.
However, if paper passes the Pre-registration Sensor (PS04) earlier than a specified timing,
stop registration control is executed to align paper and image on the ITB at the specified
timing.
Meanwhile, if the paper passes the Pre-registration Sensor (PS04) significantly later than a
specified timing, paper and image on the ITB cannot be aligned at the specified timing, and
therefore jam is generated. (Jam code: 0A90)
Sensor Sensor ON
detection (early)
timing
Paper feed
Decelerated
Stop Registration Non-stop Registration Control
Control
● Non-stop Registration Control
It is a control to align paper and image on the ITB at a specified timing by increasing or
decreasing the paper feed speed.
Since paper is not stopped at the registration position, paper interval can be shortened and
productivity can be improved.
2-110
Sensor ON Sensor ON
(ideal) (late)
Accelerated
Jam occurs
F-2-141
2-110