Canon NP6621 Service Handbook page 113

No. 120 Jam interval indication
By pushing key Jam interval indication 120
1 First lates jam interval.
2 Second latest jam interval.
3 Third latest jam interval.
4 Fourth latest jam interval.
5 Fifth latest jam interval.
6 Sixth latest jam interval.
7 Seventh latest jam interval.
8 Eigth latest jam interval.
9 Nineth latest jam interval.
0 Tenth latest jam interval.
Table 7-705
It displays the number of copies made (in tens:
1 to 999) between two jams occurence.
No. 121 Jam paper size data indication
No. 122 Jam drawer selection data indication
No. 123 Jam Document Handler copying data
indication
By pushing key
1 First lates jam data.
2 Second latest jam data.
3 Third latest jam data.
4 Fourth latest jam data.
5 Fifth latest jam data.
6 Sixth latest jam data.
7 Seventh latest jam data.
8 Eigth latest jam data.
9 Nineth latest jam data.
0 Tenth latest jam data.
Table 7-706
Service program 121 displays the paper size at
jam occurrence (B5, B5R, B4, A3, A4, A4R, A5,
A5R, A6R).
Jam data indication
Service program 122 displays the drawer selec-
tion at jam occurrence:
0 Upper drawer.
1 Lower drawer.
2 Stack bypass.
3 Optional 1
4 Optional 2
5 Optional 3
6 Optional deck.
7 Duplex unit.
Table 7-707
Service program 123 displays if Document Han-
dler was used for copying at jam occurrence (1 = DH
used).
SERVICE MODE
st drawer.
nd drawer.
rd drawer.
7–5