So I'm still fine tuning my C650i install. The customer can definitely tell the difference in the color quality, and there's actually bulletins that explain why. Basically, the color output is much lighter than the E series (and probably the 8 series). Here is the text from KBA0056335. I went ahead and changed bit 6 on switch 153 and it appeared to make a difference, I just have no idea what changes are made in the machine after making this change. Is anyone else having to tweak the color output on these new i series machines to look like the older Konica models that came before it?
Reference
When comparing the color output from previous generation machines the bizhub i series machines
appear lighter.
The conventional color reproduction is directed at a primary color being clear, with the new i series
machines the emphasis is on memory color, the new memory color is directed to produce a bright color
reproduction.
The following can be changed to enhance the color outputs of the i series machines.
1. Under color settings in the Image Quality Settings can be changed
a. Utility/Printer settings/basic settings
b. Quality Tab in the PCL driver
2. Change software switch 153 enable bit 6 by performing the following
a. Select Utility/Counter
b. Press Stop 00, Stop 01
c. If prompted enter CE password 9272 4 times
d. Select System 2
e. Select Software Switch Settings
Here's another setting that might help:
Problem
The color tone may be different than previous models when printing from the PCL driver.
Solution
CAUSE: Specification, due to the change with IT5 and IT6 machines, the printing method of black image
data except Photo mode has been modified
SOLUTION: Perform the following.
1. Open Quality from the printer driver
2. Click Quality adjustment
3. Click other and set [Pure Black] to OFF
Notes:
1. By setting the above to OFF the machines will print in rich black (4C) with the setting set to ON the
machine will print in pure black (K 1100%)
2. The previous models print with 4C (rich black) which use all CMYK toners. In contrast the subjected
current models print pure black (K 100%) to help save toner consumption.
Reference
When comparing the color output from previous generation machines the bizhub i series machines
appear lighter.
The conventional color reproduction is directed at a primary color being clear, with the new i series
machines the emphasis is on memory color, the new memory color is directed to produce a bright color
reproduction.
The following can be changed to enhance the color outputs of the i series machines.
1. Under color settings in the Image Quality Settings can be changed
a. Utility/Printer settings/basic settings
b. Quality Tab in the PCL driver
2. Change software switch 153 enable bit 6 by performing the following
a. Select Utility/Counter
b. Press Stop 00, Stop 01
c. If prompted enter CE password 9272 4 times
d. Select System 2
e. Select Software Switch Settings
Here's another setting that might help:
Problem
The color tone may be different than previous models when printing from the PCL driver.
Solution
CAUSE: Specification, due to the change with IT5 and IT6 machines, the printing method of black image
data except Photo mode has been modified
SOLUTION: Perform the following.
1. Open Quality from the printer driver
2. Click Quality adjustment
3. Click other and set [Pure Black] to OFF
Notes:
1. By setting the above to OFF the machines will print in rich black (4C) with the setting set to ON the
machine will print in pure black (K 1100%)
2. The previous models print with 4C (rich black) which use all CMYK toners. In contrast the subjected
current models print pure black (K 100%) to help save toner consumption.
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