Ricoh D124-17 Service Manual page 764

2. Appendix 2: Service Program Mode
This SP keeps track of the progress of ink filling so this information will not be lost in the
event that the ink filling is interrupted by the opening of a front cover, loss of power to
the machine, and so on.
If such a problem occurs, a large amount of air could mix with the ink during filling.
Also, air could possibly accumulate in the ink supply system if the machine is remains
idle for a long time.
1 H1
This status of the H1 print head (K1).
[0 to 31/0/1]
0: Normal
1: Air mixing at job end
2: Air mixing after idle time
4: Air mixing after ink pumps idle
2 H2
That status of the H2 print head (K2).
[0 to 31/0/1]
0: Normal
1: Air mixing at job end
2: Air mixing after idle time
4: Air mixing after ink pumps idle
3 H3
The status of the H3 print head (C).
[0 to 31/0/1]
0: Normal
1: Air mixing at job end
2: Air mixing after idle time
4: Air mixing after ink pumps idle
4 H4
60