Canon imagePRESS 1135 Series Service Manual page 1198

COPIER > OPTION > IMG-DEV
SL-RATIO Set developing sleeve cycle speed ratio
Lv.2 Details Set the peripheral speed of the developing sleeve.
When the value is decreased, poor text quality, thin lines, and image
failures such as no image, etc. are improved. However, if the value is
decreased too much, a low-density image or fogging may occur after
service life. Search for the best point while gradually narrowing the
adjustment width.
When the value is decremented by 1, the peripheral speed of the
developing sleeve is decreased by 1 %.
Use case In the case of image fault such as poor character quality, think line
width, white spot, etc.
Adj/set/operate method 1) Enter the setting value, and then press OK key.
2) Turn OFF and then ON the main power supply.
Caution Too small value can generate light density or foggy image after
reaching the life.
Display/adj/set range -50 to 20
Unit 1 %
Default value 0
DMAXS-SW ON/OFF of D-max-S control
Lv.1 Details ON/OFF setting of D-max-S control (D-max control with coated
paper group).
Selecting OFF executes control with EPC only using the environment
Vcont and Vback (conventional control with black/white machine).
Use case To separate (identify) the cause of image fault whether it's due to
D-max control or not.
Adj/set/operate method Enter the setting value, and then press OK key.
Display/adj/set range 0 to 2
0: OFF, 1: ON, 2: Full correction only (no simplified D-max control)
Appropriate target value 1
Default value 1
DUPDWN-O Vcont offset adjustment: OHP
Lv.1 Details Adjusting the offset amount for Vcont (that is determined by D-max
control) to be used for output of transparency.
The value is shown in percentage for Vcont from D-max control
result.
The bigger the value in positive number, the darker the image gets.
The smaller the value in negative number, the lighter the image gets.
Use case In the case of image fault on transparency, such as fixing failure or
toner scattering
Adj/set/operate method Enter the setting value, and then press OK key.
Caution Selecting the bigger value can activate the Vcont limiter.
Display/adj/set range -32 to 32
Unit 1 %
Appropriate target value 0
Default value 0
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Service Mode > COPIER > OPTION (Mechanical specifications Setting Mode) > IMG-DEV
8 Service Mode > COPIER > OPTION (Mechanical specifications Setting Mode) > IMG-DEV
COPIER > OPTION > IMG-DEV
DUPDWN-N Vcont offset adjustment: coated PP
Lv.1 Details Adjusting the offset amount for Vcont (that is determined by D-max
control) to be used for output of coated paper group.
The value is shown in percentage for Vcont from D-max control
result.
The bigger the value in positive number, the darker the image gets.
The smaller the value in negative number, the lighter the image gets.
Use case In the case of changing density with coated paper group
Adj/set/operate method Enter the setting value, and then press OK key.
Caution Selecting the bigger value can activate the Vcont limiter.
Display/adj/set range -32 to 32
Unit 1 %
Appropriate target value 0
Default value 0
DUPDWN-S Vcont offset adjustment: quality PP
Lv.1 Details Adjusting the offset amount for Vcont (that is determined by D-max
control) to be used for output of high quality paper group.
The value is shown in percentage for Vcont from D-max control
result.
The bigger the value in positive number, the darker the image gets.
The smaller the value in negative number, the lighter the image gets.
Use case In the case of changing density with high quality paper group.
Adj/set/operate method Enter the setting value, and then press OK key.
Caution Selecting the bigger value can activate the Vcont limiter.
Display/adj/set range -32 to 32
Unit 1 %
Appropriate target value 0
Default value 0
Supplement/memo High-quality paper group: High quality paper / recycled paper /
embossed paper / label / postcard / cotton
ADJ-VPPN Adj of developing bias Vpp: quality PP
Lv.1 Details Adjust Vpp for the developing AC bias for high-quality paper group.
The initial value is set to 1.5 kV. When the value is decreased by
1, the Vpp value is decreased by 0.1 kV. (The density and fogging
increase.)
When fogging and bias leakage occurred, decrease the value. When
a low-density image or no image occurred, increase the value.
Use case When fogging, bias leakage, low-density image, or no image occurs
Adj/set/operate method Enter the setting value, and then press OK key.
Display/adj/set range -4 to 2
Unit 0.1 kV
Default value 0
Supplement/memo High-quality paper group: High-quality paper / recycled paper /
embossed paper / label / postcard / cotton
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