Duplo DP-S Series, Service Manual

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Paper Ejection Section
chap.2
2
" PAPER JAM ON EJECTION SIDE " is displayed.
1. Paper Jam Detection Timing
Description
Paper jamming is divided into three types :
"PAPER JAM ON EJECTION SIDE","PAPER JAM IN DRUM
SECTION" and "PAPER JAM ON FEEDER SIDE" . Paper jamming is detected under the following conditions.
When paper jamming is detected,
"PAPER JAM"
is displayed on the LCD panel, and the machine stops
printing operation. The display is cleared by removing the cause of paper jam and pressing the ( STOP ) key
or by restarting printing.
R8S02075
Press roller sensor
Paper eject JAM sensor
Drum position 1 sensor
Drum position 2 sensor
Master pre-detach
position edge
JAM1 :
Paper trailing edge is not ejected.
When the software detects the certain angle from the drum stop position and at that timing the
paper eject jam sensor does not have a photointerrupting status.
JAM2 : Paper lead edge is not ejected.
When the paper eject jam sensor never has a photointerrupting status while the drum rotates by a
certain angle from the drum stop position.
JAM (during stop) :
When the paper eject jam sensor has a photointerrupting status during the machine stop.
If the sensor has a photopassing status, the display is cancelled.
2
" PAPER JAM IN DRUM SECTION " is displayed.
JAM :
The paper at the signal sensor section is not ejected. When the paper top detect sensor and the paper
eject jam sensor have the photopassing status and the signal sensor only has the photointerrupting
status, JAM is detected.
2
" PAPER JAM ON FEEDER SIDE " is displayed.
JAM3 : During paper feed operation, the paper does not pass through the signal sensor. If the paper does
not pass through the paper top detect sensor during two rotations of the drum after the paper feed
command is given during printing, JAM is detected.