Read Sharp MX-FN19 / MX-FN20 / MX-PN12 (serv.man2) Service Manual online
MX-FN19 OPERATIONAL DESCRIPTION 6 – 26
B. Checking for a jam in saddle stitch unit
The saddle stitch unit identifies any of the following conditions as a jam, and sends the jam signal to the host machine. In response, the host
machine may stop copying operation and indicate the presence of a jam on its control panel.
When all the doors are closed after the user has removed the jam, the saddle stitch unit checks whether the vertical path paper sensor
When all the doors are closed after the user has removed the jam, the saddle stitch unit checks whether the vertical path paper sensor
(FSVPPD) has detected the presence of paper. If the sensor has detected paper, the unit will identify the condition as being faulty jam removal
and send the jam signal to the host machine once again.
FSPIND
FS1PD
FS2PD
FS3PD
FSVPPD
FSPDD
FSPPPD
FSLGTD
FSLGHPD
No.
Name of sensor
FSPDD
Delivery sensor
FSVPPD
Vertical path paper sensor
FS1PD
No.1 paper sensor
FS2PD
No.2 paper sensor
FS3PD
No.3 paper sensor
FSPIND
Saddle inlet sensor
Jam type
Sensor
Jam condition
Code
Inlet delay
FSPIND
The saddle inlet sensor (FSPIND) does not detect paper sheet even if
predetermined time (distance) has passed after receiving saddle delivery request
signal from the finisher.
FFPD_N
Inlet stationary
FSPIND
The sheet does not move past from the saddle inlet sensor (FSPIND) even if
predetermined number of sheets have been delivered by the feeder motor (FSFM)
after the saddle inlet sensor (FSPIND) detects the top edge of sheet.
FFPD_S
Feed delay
FS1PD
The NO.1 paper sensor (FS1PD) does not detect paper sheet even if
predetermined time (distance) has passed after the saddle inlet sensor (FSPIND)
detects the top edge of sheet.
FSHS_N
Feed stationary
FS1PD, FS2PD, FS3PD
The sheet does not move past from the No.1 paper sensor (FS1PD), No.2 paper
sensor (FS2PD), and the No.3 paper sensor (FS3PD) even if predetermined
number of sheets have been delivered by the feed motor (FSFM) after the
No.1paper sensor (FS1PD) detects the top edge of sheet.
FSHS_S
Delivery delay
FSPDD
The paper sensor (FSPDD) does not detect paper even if predetermined number of
sheet stacks have been delivered by the paper folding motor (FSFOM) after paper
is pushed by the paper pushing plate.
FSFS_N
Delivery stationary
FSPDD, FSVPPD
The paper stack does not move past from the delivery sensor (FSPDD) even if
predetermined number of stacks have been delivered by the paper folding motor
(FSFOM) after the delivery sensor (FSPDD) detects the top edge of sheet. The
paper stack does not move past from the vertical path paper sensor (FSVPPD)
even if predetermined number of stacks have been delivered by the paper folding
motor (FSFOM) after the delivery sensor (FSPDD) detects the stacks.
FSFS_S
Stitcher stapler
FSSHP2, FSSHP1
When the stitcher motor (FSFSTM/FSRSTM) is rotating clockwise, the stitcher
home position sensor (FSSHP2/FSSHP1) does not turn ON within 0.4 secs after it
has turned OFF. In addition, the sensor turns ON within 0.4 secs after the motor has
been rotated counterclockwise.
FSSTPLJ
Power-On
FSPPPD, FSPDD,
FSVPPD, FS1PD,
FS2PD, FS3PD, FSPIND
One of the sensors on the paper sensor PCB (No.1 paper sensor (FS1PD), No.2
paper sensor (FS2PD), No.3 paper sensor (FS3PD), vertical path paper sensor
(FSVPPD), delivery sensor (FSPDD), paper positioning plate paper sensor
(FSPPPD), saddle inlet sensor (FSPIND) detects a sheet when power is supplied.
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Door open
FSINDD, FFDD
The inlet cover sensor (FSINDD) detects opening of the cover during operation.
The front cover open/close sensor (FFDD) detects opening of the cover while paper
is on the stapling tray.
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