This machine does potential control with a procedure that is known as the process control self-check. This procedure is done at these 7 times.

Timing

Execution Mode

1. Initial Power-ON

  • Development Bias Control and MUSIC (approx. 55 seconds)
  • MUSIC only (approx. 22 seconds)
  • No Execution

One of the control modes is executed at each timing. What control mode is done depend(s) on some conditions as described in the text that follows this table.

2. Recovery form Sleep Mode

3. Front or Top Cover Open/Close

4. Ready Status

5. Before Job

6. Page End

7. Job End

  1. Initial
    • Toner amount control and MUSIC start automatically immediately after the power is turned on, if one of the following conditions occurs.
      1) New AIO detection
      2) New ITB (Image Transfer Belt) unit detection (after transfer unit life counter is reset with SP mode)
      3) Environment (temperature and humidity) change detection.
    • MUSIC starts automatically immediately after the power is turned on (there is toner amount control) if conditions other than described above occur.
  2. Recovery from Sleep Mode
    • Toner amount control and MUSIC start automatically when the machine comes back from energy saver mode, if one of following conditions occurs.
      1) New AIO detection
      2) New ITB (Image Transfer Belt) unit detection (after transfer unit life counter is reset with SP mode)
      3) Environment (temperature and humidity) change detection.
    • MUSIC starts automatically (there is toner amount control) when the machine comes back from energy saver mode, if the following condition occurs.
      1) The previous MUSIC was done if there was a high temperature inside the machine.
  3. Immediately after the front or top cover is closed
    • No adjustment is done when the front or top cover is closed, if one of following conditions occurs.
      1) After paper jam detection and New AIO detection
      2) New ITB unit detection (after transfer unit life counter is reset with SP mode)
      3) No environment change
    • Toner amount control and MUSIC start automatically when the front or top cover is closed, if conditions other than described above occur.
  4. Ready status:
    • Toner amount control and MUSIC start automatically when the machine stays in the ready condition and the environment has changed.
  5. Before a job:
    • MUSIC starts automatically before a job if the previous MUSIC was done when there was a high temperature inside the machine and a specified time has elapsed.
    • MUSIC starts automatically before a job if the machine is turned on in a low temperature condition and a specified time has elapsed.
  6. Page end:
    • Toner amount control and MUSIC start automatically between pages when the machine detects an environment change.
    • Toner amount control and MUSIC start automatically between pages when the machine has copied/printed 200 pages since the previous process control.
    • Toner amount control and MUSIC interrupt a job and start automatically between pages when the machine has copied/printed 250 pages since the previous process control.
    • MUSIC starts automatically between pages when the machine has copied/printed 100 pages in the same job since the previous process control.
    • MUSIC starts automatically between pages when the polygon motor has been rotating for 180 seconds.
    • MUSIC interrupts a job and starts automatically between pages when the polygon motor has been rotating for 300 seconds.
  7. Job end:
    • Toner amount control and MUSIC start automatically after a job when the machine gets a request to execute the toner amount control and MUSIC.
    • MUSIC starts automatically after a job when the machine gets a request to execute MUSIC.