- HP All-in-One Printer Manual

Q2431-90912 Chapter 5 Theory of operation 117
Stapler/stacker jam detection
The following sensors detect the presence of media in the stapler/stacker and determine
whether the media is feeding properly or jamming. For information about the location of these
sensors, see “Stacker and stapler/stacker switches and sensors” on page 345.
● Paper inlet sensor (PS1101)
● Paper delivery sensor (PS102)
Stapler/stacker feed jam
If the paper inlet sensor (PS1101) does not detect the leading edge of the media within a specific
time after the stacker driver has received the paper delivery signal, the DC controller PCA
determines that a stapler/stacker feed delay jam has occurred.
The transport process is stops and a 13.XX.YY JAM message appears on the control-panel
display. For more information about jam messages, see “Alphabetical printer messages” on
page 258 and “Numerical printer messages” on page 274.
Stapler/stacker feed stationary jam
If the paper inlet sensor (PS1101) does not detect the trailing edge of the media within a specific
time after the paper inlet sensor (PS1101) detected the leading edge of the media, the DC
controller PCA determines that a stapler/stacker feed delay jam has occurred.
The transport process is stops and a 13.XX.YY JAM message appears on the control-panel
display. For more information about jam messages, see “Alphabetical printer messages” on
page 258 and “Numerical printer messages” on page 274.
Stapler/stacker delivery jam
If the paper delivery sensor (PS1102) does not detect the trailing edge of the media within a
specific time after the feed motor has been activated following the completion of the stapling
operation, the DC controller PCA determines that a stapler/stacker feed delay jam has occurred.
The transport process is stops and a 13.XX.YY JAM message appears on the control-panel
display. For more information about jam messages, see “Alphabetical printer messages” on
page 258 and “Numerical printer messages” on page 274.
Stapler/stacker residual media jam
If the paper inlet sensor (PS1101) or the paper delivery sensor (PS1102) detect media during the
initial drive period, the DC controller PCA determines that a stapler/stacker feed delay jam has
occurred.
The transport process is stops and a 13.XX.YY JAM message appears on the control-panel
display. For more information about jam messages, see “Alphabetical printer messages” on
page 258 and “Numerical printer messages” on page 274.
Note This jam only occurs if the paper delivery senor (PS1102) detects media at the start of the initial
drive.