Canon imageRUNNER ADVANCE C5500 Series Service Manual page 967

COPIER > OPTION > IMG-DEV
DVTGT-K 2
Detail
Use Case
Adj/Set/Operate Method
Caution
Display/Adj/Set Range
Default Value
Related Service Mode
Additional Functions
Mode
Supplement/Memo
DVTGT-Y 2
Detail
Use Case
Adj/Set/Operate Method
Caution
Display/Adj/Set Range
Default Value
Related Service Mode
Additional Functions
Mode
Supplement/Memo
Adj of ATR Sensor (Bk) gain value offset
To actually correct the TD ratio by setting the offset of the gain value of ATR Sensor (Bk).
When the value is increased (TD ratio is increased), uneven density due to poor stirring by screw
is alleviated, but fogging may occur.
The target value of TD ratio changes when changing the value. Therefore, after the setting has
been changed, it is necessary to make TD ratio stable by executing toner ejection sequence.
When the Developing Unit is replaced, the value is returned to 0.
When uneven density due to poor stirring by screw occurs
1) Enter the setting value (switch negative/positive by -/+ key) and press OK key.
2) Turn OFF/ON the main power switch.
3) Execute toner ejection sequence.
After the value is changed, execute the toner ejection sequence. Note that toner ejection sequence
must be executed for each color even though values for multiple colors are changed.
-3 to 3
0
COPIER> TEST> PG> COLOR-K, DENS-K, PG-QTY, TYPE
Adjustment/Maintenance> Maintenance> Clean Inside Main Unit
Procedure to execute toner ejection sequence
1) Execute [Clean Inside Main Unit} in [Settings/Registration] (which takes time).
2) Place 10 sheets of A4 size paper for test print in a paper source.
3) Set 1 for COLOR-K.
4) Set 255 (solid black) for DENS-K.
5) Set 10 for PG-QTY.
6) Set 5 (whole-area halftone image) for TYPE.
Adj of ATR Sensor (Y) gain value offset
To actually correct the TD ratio by setting the offset of the gain value of ATR Sensor (Y).
When the value is increased (TD ratio is increased), uneven density due to poor stirring by screw
is alleviated, but fogging may occur.
The target value of TD ratio changes when changing the value. Therefore, after the setting has
been changed, it is necessary to make TD ratio stable by executing toner ejection sequence.
When the Developing Unit is replaced, the value is returned to 0.
When uneven density due to poor stirring by screw occurs
1) Enter the setting value (switch negative/positive by -/+ key) and press OK key.
2) Turn OFF/ON the main power switch.
3) Execute toner ejection sequence.
After the value is changed, execute the toner ejection sequence. Note that toner ejection sequence
must be executed for each color even though values for multiple colors are changed.
-3 to 3
0
COPIER> TEST> PG> COLOR-Y, DENS-Y, PG-QTY, TYPE
Adjustment/Maintenance> Maintenance> Clean Inside Main Unit
Procedure to execute toner ejection sequence
1) Execute [Clean Inside Main Unit} in [Settings/Registration] (which takes time).
2) Place 10 sheets of A4 size paper for test print in a paper source.
3) Set 1 for COLOR-Y.
4) Set 255 (solid black) for DENS-Y.
5) Set 10 for PG-QTY.
6) Set 5 (whole-area halftone image) for TYPE.
953
8. Service Mode