Canon imageRUNNER ADVANCE C5500 Series Service Manual page 972

COPIER > OPTION > IMG-DEV
DMX-OF-K 2
Detail
Use Case
Adj/Set/Operate Method
Display/Adj/Set Range
Default Value
ZAB-TH 2
Detail
Use Case
Adj/Set/Operate Method
Caution
Display/Adj/Set Range
Appropriate Target Value
Default Value
Related Service Mode
Amount of Change per
Unit
Adj of Bk-color D-max target density
To adjust the target density of D-max control in the case where density of solid area on Bk-color
image is not appropriate even when auto gradation adjustment is executed.
Increase the value when the density is low and decrease the value when the density is high.
When density of solid area is not appropriate even though auto gradation adjustment is executed
1) Enter the setting value (switch negative/positive by -/+ key) and press OK key.
2) Turn OFF/ON the main power switch.
3) Execute auto gradation adjustment (full adjustment).
-3 to 3
0
Set of toner band form duration at stop
To set the duration of toner band formation on the Photosensitive Drum for Bk-color (number of
fed sheets) while drive is stopped.
While drive is stopped, the Photosensitive Drum for Bk-color is in contact with the ITB. If the contact
state remains, the coating agent of the ITB penetrates to the surface, causing no toner deposit on
the contact area of the drum. As the result, white lines appear on Bk-color image at intervals of
drum circumference (94 mm). The newer the ITB is, the more likely the component penetrates.
Therefore, toner band is formed on the contact area of the drum and the ITB while drive is stopped
until the number of sheets set in ZAB-TH is fed.
When 0 is set, toner band is not formed.
When 1 to 5 is set, toner band is formed until the value of TR-BLT (ITB parts counter) reaches the
specified number of sheets. After that, toner band is not formed.
When 6 is set, toner band is always formed.
Increase the value when white lines appear.
When white lines appear on Bk-color image at 94 mm intervals
Enter the setting value, and then press OK key.
- If the value is too small, white lines appear.
- Be sure to change the value back to the default when replacing the ITB.
0 to 6
0: OFF, 1: ON up to 100,000 sheets, 2: ON up to 200,000 sheets, 3: ON up to 300,000 sheets, 4:
ON up to 400,000 sheets, 5: ON up to 500,000 sheets, 6: Always ON
1 - 5
3
COPIER> OPTION> IMG-DEV> ZAB-DENS
COPIER> COUNTER> DRBL-1> TR-BLT
100000
958
8. Service Mode