Process control is a system that adjusts the image creation process to maintain a constant image density. Process control is executed at the following conditions.

 

Trigger

Operative Condition

Notes

1

  • Power ON
  • Recovering from Energy Saver
  • Closing the front cover
  • When a certain time passes after the previous job end, and when a certain number of sheets are printed after the last process control at the previous Power ON, recovering from Energy Saver mode or closing the front cover.
  • When a new PCDU is detected.
  • When the TD sensor detects a toner end before turning the power on.

No retry if an SC occurs during adjusting.

2

Job End

When the job end counter becomes more than the threshold.

  • Process Control clears the Job end counter.

3

Job Interruption

When the job interrupt counter becomes more than the threshold.

Process control clears the job interrupt counter.

4

Non-use (Idle)

  • When the non-use time counter becomes more than the threshold.
  • When significant environmental changes occur after the last job end.

Available only when the energy saver mode is off.

5

Manual process control

When SP 3-011-001 is executed.

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The process control consists of the following features.

  • Potential Control (Charge/Development Bias and LD power Control)
  • Vtref Compensation
Flowchart: From Process Control to Printing