Panasonic FP-7818 Service Manual & Parts Manual page 334

(a) U4:Sorter failure
When the sorter is not installed correctly.
Is the sorter installed correctly?
Does the input of the connector (J7-
1:S620/J3-1:S660) change when
the door switch is turned ON/OFF?
(b) U11:Sorter paper trouble
Paper is in the sort bin when the staple sort mode or sort mode is selected.
• More than 50(30/Ledger, A3) copies are received by the sort bin.
• Sheets of paper of different width or sizes unsuitable for stapling(invoice,etc.)
are received.
"U11" is cleared when all the copies in the sort bin are removed.
(c) U12:Stapler unit cover trouble
When the staple unit cover is not closed completely.
Is the cover opened?
Does the output from YJ6-2
( S P L O P N ) c h a n g e w h e n
opening and closing the cover?
(d) Staple cartridge is not detected
Under the following conditions, copies won't be stapled:
• Pressing the manual staple key
• Selecting the staple sort mode
Note: The "Add staple" indication is an alarm. All functions other than stapling
are normal.
5-2
NO
YES
NO
NO
YES
NO
• Install the sorter correctly
• Door switch improper fitting or
failure
• Close the cover.
• Stapler unit cover switch
failure.