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CF5001 Ver.1.0 Sep. 2003 OTHER CONTROLS
2-75
II UNIT EXPLANATION
15.6 ACS control
15.6.1 Switching between the color mode and the black and white mode
If more than 5 black and white sheets are fed consecutively from RADF in which both the color sheets and
the black and white sheets are stored, the pressure on the 1st transfer rollers /Y/M/C are released and it
shifts to the black and white mode. At this time, the switch is performed during JOB, so there is a time lag
between the color copy and the black and white copy.
A. Switching sequence from the color mode to the black and white mode
1. The 2nd transfer for the previous copy sheet (color) is complete.
2. The pressure is executed on the 1st transfer roller /K (the 1st transfer rollers /Y/M/C are in release
state).
3. Writing /K is started.
4. Terminate the operation of the drum unit /Y/M/C, the developing unit /Y/M/C, and the toner supply
unit /Y/M/C.
B. Switching sequence from the black and white mode to the color mode
1. The color print is instructed.
2. The 2nd transfer for the previous copy sheet (black and white) is complete.
3. Start the operation of the drum unit /Y/M/C, the developing unit /Y/M/C, and the supply unit /Y/M/C.
4. MPC or APC is executed for the write unit /Y/M/C.
5. The pressure is executed on the 1st transfer roller /Y/M/C/K.
6. Writing /Y is started.
15.6.2 Copy count when using ACS
• There are following two kinds of copy count when using ACS.
A. The black and white mode (the 1st transfer roller /Y/M/C is in the release state)
B. The color mode (the 1st transfer roller /Y/M/C is in the pressure state)
*1If the original is black and white, the output will be black and white; however, the developer counter
counts it as color copy and the total counter counts it as black and white copy.
Black and white original
Total counter Counts as black and white
Developer counter Counts as black and white
Color original Black and white original
Total counter Counts as color Counts as black and white
Developer counter Counts as color Counts as color *1