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• With the initial setting, print productivity has the priority and printing is conducted with all press (the transfer belt being pressed onto the
color photoconductors) even when the specified quantity of black printing is included. In that case, the color photoconductors rotate
unnecessarily. The color photoconductors deteriorate by the amount of rotation.
• When this setting is ON, black printing quantity threshold until switching to K press (release of color photoconductors) becomes smaller.
• This setting is to be used when the degradation control of the color photoconductors should have priority over printing productivity.
Switch No. 25
OFF
ON
(11) Choice of changing AT1VC conditions
• Choice to change the conditions for conducting AT1VC
Switch No.32
OFF
ON
Procedure
1. Call the Service Mode to the screen.
2. Call the Enhanced Security to the screen.
3. Touch [Engine FW DipSW].
4. Touch [32] and check the key is highlighted (ON state) in reverse video.
5. Touch [END].
NOTE
▪ To reflect the adjustment value after change, make sure to exit from the Service Mode.
▪ The adjustment value is not reflected when turning off the power without exiting from the Service Mode.
(12) Choice 1 of extending PU life
To change the imaging unit life threshold.
Switch No.33
OFF
ON
(13) Choice 2 of extending PU life
To change the imaging unit life threshold.
Switch No.34
OFF
ON
(14) Choice of increasing registration stabilization frequency
Choice of increasing registration stabilization frequency by PH temperature change
Switch No.42
OFF
ON
(15) Choice of disabling engine log via CTL
• Choice to disable an engine log via CTL
"OFF"
To enable an engine log via CNT. (Default)
"ON"
To disable an engine log via CNT. (Terminal output)
Procedure
1. Call the Service Mode to the screen.
2. Call the Enhanced Security to the screen.
3. Touch [Engine FW DipSW].
4. Touch [39] and check the key is highlighted (ON state) in reverse video.
5. Touch [END].
NOTE
▪ To reflect the adjustment value after change, make sure to exit from the Service Mode.
▪ The adjustment value is not reflected when turning off the power without exiting from the Service Mode.
(16) Choice of UFP behavior mode
• Choice to conduct a control to restrict the occurrence of UFP
"OFF"
Not to conduct a control to restrict the occurrence of UFP. (Except for Europe: default)
"ON"
To conduct a control to restrict the occurrence of UFP. (Europe only: default)
Procedure
1. Call the Service Mode to the screen.
2. Call the Enhanced Security to the screen.
J BILLING SETTING/ENHANCED SECURITY/DEBUG SETTINGS > 2. ENHANCED
Print productivity priority
Degradation control of the color photoconductors
Contents
Condition 1
Condition 2
Contents
To use the default threshold.
To use the threshold 1.25 times the normal one.
Contents
To use the default threshold.
To use the threshold 1.5 times the normal
one.
Contents
Disable
Enable
Contents
Default
○
Default
○
J-23
SECURITY
Default
○
Default
○
Default
○
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