Canon imagePRESS 1135 Series Service Manual page 182

2
Technology > Pickup / Feed System > Duplexing Area Function/Control > Page Passing Control
Step 1
When the leading edge of paper goes through the each pause position reference sensor, it is
checked if there is paper on the downstream wait position.
MEMO :
Paper presence is detected by not checking the standard senor on the downstream wait
position but checking the data.
Step 2
When there is no paper on the downstream wait position, paper feed continues.
Step 3
When there is paper on the downstream wait position, the paper is paused on the wait
position.
Step 4
After the trailing edge of paper on the downstream wait position goes through the wait
position, duplexing feed motor is driven and paper feed restarts.
2 Technology > Pickup / Feed System > Duplexing Area Function/Control > Page Passing Control
■ Page Passing Control
<Overview>
When a job including 1-sided printing and 2-sided printing is executed, page order switching
control (2-sided pages are printed before 1-sided pages.) is performed.
This control enables to shorten the paper interval between 1-sided printing and 2-sided
printing, thereby reducing the time required to switch from 1-sided printing to 2-sided printing.
As a result, the total productivity of jobs including 1-sided printing and 2-sided printing is
improved.
<Normal control and page passing control of a job including 1-sided printing and 2-sided
printing>
Printed order of page numbers (conventional)
1 2-2
2-1
Delvery interval
Printed with the order of page numbers switched (page passing control)
2-1
1 4-1
<Cases where page passing control is stopped>
The cassette is automatically changed when the paper in the deck runs low because the
page numbers become out of order if the paper runs out.
When an empty paper warning (remaining paper: approx. 50 sheets) is generated, the page
passing control is stopped, and the control is switched to normal control.
2-134
3 4-1 5
4-2
(large)
2-2
3 4-2 5
Delvery
interval
(small)
F-2-190
2-134