Ricoh FT5535 Service Manual page 216

(7) When an ADF is installed
(8) When a sorter stapler is installed
3.4 C-CODE TABLE
C-code
C1 Front cover open
C2
Paper exit cover open
(A157/A160)
C3 Paper tray unit cover open
C4
LCT cover open
C5 Sorter cover open or sorter not
set
C6 ADF cover open
C7
Right cover open
3.5 U-CODE TABLE
U-code
U2
Key counter not set
U6 Fusing unit not set
U7 Duplex unit not set
FSM
Condition
Condition
6-29
Message on LCD (A156 copier only)
Cover open
Close the front cover
—
Close the right side of paper tray unit
Cover open
Close the LCT cover
Close sorter cover or set the sorter
Cover open
Close the ADF cover
Close the right side of main copier unit
Message on LCD (A156 copier only)
Insert a key counter or enabling device/
Enter a user code
Open the front cover and reset the fusing
unit
Insert the duplex unit
FT5535/4527/4522