Canon imageRunner iR2270, Service Manual, Page: 129 / 233

Chapter 4
4-11
F-4-7
Operations
1.The standard tray is moved to the point of paper surface detection, and the stack discharge
slider and the offset roller are initialized.
2.The feed motor is driven in feed direction, and a series of operations is executed for shift
mode (A4, 2 sheets, 4 sets).
3.In response to a press on the push switch, the foregoing series of operations is ended.
3.Checking the Feeder Unit
F-4-8
Operations
1.The pickup solenoid is turned on. (A different set of operations is used depending on the
initial state.)
2.Th feed motor is driven in the direction of sheet feed at 137 mm/sec.
3.The motor is accelerated to 230 mm/sec.
4.The motor is accelerated to 600 mm/sec.
5.The motor is stopped after a feed of 50 mm.
6.The motor is driven for an equivalent of 40 mm in reverse feed direction (i.e., in which
the sheet is pulled back) and then stopped.
7.The motor is driven at 230 mm/sec in the direction in which the sheet is pulled back.
8.The feed motor is stopped.
9.The pickup solenoid is turned off.
10.The shutter is opened (if the option tray is selected).
11.The shutter is opened (if the option tray is selected).
*If an optional tray is fitted,
ON
1 2 3 4
ON
1 2 3 4