Canon iR C3200 Series, Руководство по обслуживанию

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Chapter 9
9-20
V
Uses the SALT sensor to take the reading.
V
Converts density (performs computation using the measurement taken).
V
Determines the charging DC bias, developing DC bias, and primary charging current level.
V
End
Timing of Control
- Service Person InteractionThe mechanism is executed when 'full correction' or 'quick correction' of auto gradation
correction is under way in user mode.
F-9-17
9.4.8 SALT-Dhalf Control (development characteristics correction)
0000-4493
The SALT-Dhalf control mechanism is used to stabilize the gradation of images on the ITB.
It makes up for the changes in gradation characteristics that occur in response to the deterioration in developer or
photopositive drum, changes in temperature/humidity, and changes that occur as the machine is used over time.
Gradation Density Control for Half Speed
The control mechanism is used to make up for the changes in the gradation in images when thick paper, special
paper, or transparency is used.
When the mechanism is enabled in service mode, it is activated when auto control is executed.
The time it takes is about double the time taken when plain paper is used.
Description of Control
Start-up*
V
Measures the light reflected by the surface of the ITB (background measurement).
V
Forms a sample patch of a gradation pattern stored in the main
controller on the ITB.
V
Uses the SALT sensor to take a reading.
Y
M
C
Bk
SALT sensor