Ricoh G108 - TONER DENSITY (MASS AMOUNT) CONTROL

TONER DENSITY (MASS AMOUNT) CONTROL
SM 5-49 G108
Service
Tables
5.5 TONER DENSITY (MASS AMOUNT) CONTROL
5.5.1 OVERVIEW
These SP modes are for the Toner Density (Mass Amount) Control (TMA):
• TMA 1 (Engine SP7-907): Sets one of the TMA control switches. The TMA
control switches set the intervals of the TMA.
• TMA 2 (Engine SP7-908)
1) K (Engine SP7-908-001): Adjusts the K development bias.
2) C (Engine SP7-908-002): Adjusts the C development bias.
3) M (Engine SP7-908-003): Adjusts the M development bias.
4) Y (Engine SP7-908-004): Adjusts the Y development bias.
5) TMA Status (Engine SP7-908-005): Shows the TMA status.
The TMA takes about 25 seconds at the maximum. For the detailed process of the
TMA, see section 6.2.
5.5.2 TMA CONTROL SWITCH
TMA 1 (Engine SP7-907) sets one of the 15 TMA control switches. The TMA
control switches set the intervals of the TMA control. The table below lists the
switches and intervals. The unit of intervals is ‘page or minute.’ The TMA
calculation is done at the end of a print job after all conditions are met.
For example: When the TMA control switch is "1," the TMA calculation and
adjustment is done at the end of a job after 100 pages are printed or at the when
100 minutes have passed (whichever occurs first).
Intervals (page or minute)
TMA
Control
Switch
(SP7-907)
1st
Execution
2nd
Execution
3rd
Execution
4th
Execution
Remarks
1 100 200 300 300
2 100 200 200 200
3 100 100 100 100
4 50 200 300 300
5 50 200 200 200
6 50 100 300 300
7 50 100 200 200
8 30 60 150 250
9 30 60 100 200
10 30 60 100 100
11 30 60 60 200
12 30 60 60 100
13 50 50 50 50
14
Not
executed
Not
executed
Not
executed
Not
executed
The development bias
is adjusted.
15
Not
executed
Not
executed
Not
executed
Not
executed
The development bias
is not adjusted.