Firmware

Firmware Suite


The Firmware Suite is available for download.

Applicable models

C911; C931; C941; ES9411; ES9431; ES9541; Pro9431; Pro9541

* The firmware update tool is also required for update after the firmware is downloaded.

Download the firmware update tool >


To download the Firmware Suite, you must agree to the following "Software License Agreement". Be sure to read before downloading.

Read the Software License Agreement >

Specifications

File name OKI_C941_A01.61_0_4_315880.bin
Version A01.61_0_4
File size 47,444,469 Byte
MD5 hash value 83d20b90676c1c8aef20a582a95aaee6

Update history

(note1) If you have updated a device with Firmware Ver A01.60 or earlier, please use the following software version.
Configuration Tool Ver 1.9.3 or later
smart PrintSuperVision Ver 1.4.1 or later


Firmware Ver.  A01.61_0_4
CU-Loader: 01.07
CU: A1.61
PU: 00.01.37
PortCPU: 00.00.17
DriverCPU: 00.00.25
Duplex: 00.00.22
OptionTray: 00.00.33
IM: 01.00
NIC: Protocol 01.12
     Web 01.08
     Config 01.03

1. Improved function.

-------------
Firmware Ver.  A01.60_0_4
CU-Loader: 01.07
CU: A1.60
PU: 00.01.37
PortCPU: 00.00.17
DriverCPU: 00.00.25
Duplex: 00.00.22
OptionTray: 00.00.33
IM: 01.00
NIC: Protocol 01.12
     Web 01.08
     Config 01.03

1. Improved function.
2. Changed specifications when connecting with Configuration Tool and smart PrintSuperVision.
    If you are using the above software on a device that has been updated with this firmware, please use the following version.
    Configuration Tool Ver 1.9.3 or later
    smart PrintSuperVision Ver 1.4.1 or later

-------------
Firmware Ver.  A01.57_0_4
CU-Loader: 01.07
CU: A1.57
PU: 00.01.37
PortCPU: 00.00.17
DriverCPU: 00.00.25
Duplex: 00.00.22
OptionTray: 00.00.33
IM: 01.00
NIC: Protocol 01.11
     Web 01.08
     Config 01.03

1. Added the function to enable/disable Port 9100 on the Web page.
2. Fixed a problem that checkboxes on the web setup page are disabled.

-------------
Firmware Ver.  A01.56_0_4
CU-Loader: 01.07
CU: A1.56
PU: 00.01.37
PortCPU: 00.00.17
DriverCPU: 00.00.25
Duplex: 00.00.22
OptionTray: 00.00.33
IM: 01.00
NIC: Protocol 01.10
     Web 01.07
     Config 01.03

1. Fixing security vulnerabilities.

-------------
Firmware Ver.  A01.55_0_4
CU-Loader: 01.07
CU: A1.55
PU: 00.01.37
PortCPU: 00.00.17
DriverCPU: 00.00.25
Duplex: 00.00.22
OptionTray: 00.00.33
IM: 01.00
NIC: Protocol 01.10
     Web 01.07
     Config 01.03

1. Fixed a problem where the image part was painted black when printing with the PCL driver.
2. Fixed some security vulnerabilities in the network(TCP).

-------------
Firmware Ver.  A01.53_0_4
CU-Loader: 01.07
CU: A1.53
PU: 00.01.37
PortCPU: 00.00.17
DriverCPU: 00.00.25
Duplex: 00.00.22
OptionTray: 00.00.33
IM: 01.00
NIC: Protocol 01.10
     Web 01.07
     Config 01.03

1. Measures were taken for network vulnerabilities.
2. Disable "NetBIOS over TCP" Setup and Report function.

-------------
Firmware Ver.  A01.51_0_4
CU-Loader: 01.07
CU: A1.51
PU: 00.01.37
PortCPU: 00.00.17
DriverCPU: 00.00.25
Duplex: 00.00.22
OptionTray: 00.00.33
IM: 01.00
NIC: Protocol 01.09
     Web 01.07
     Config 01.03

1. Improved function.

-------------
Firmware Ver.  A01.49_0_4
CU-Loader: 01.07
CU: A1.45
PU: 00.01.37
PortCPU: 00.00.17
DriverCPU: 00.00.25
Duplex: 00.00.22
OptionTray: 00.00.33
IM: 01.00
NIC: Protocol 01.09
     Web 01.07
     Config 01.03

1. Fixing the problem that toner might adhere to the back side of the first sheet in monochrome printing.

-------------
Firmware Ver.  A01.47_0_4
CU-Loader: 01.07
CU: A1.45
PU: 00.01.36
PortCPU: 00.00.17
DriverCPU: 00.00.25
Duplex: 00.00.22
OptionTray: 00.00.33
IM: 01.00
NIC: Protocol 01.09
     Web 01.07
     Config 01.03

1. Fixing the problem that switching trays during continuous printing might display inappropriate paper request error.
2. Fixing the problem that filling in the frame with spot color when printing a framed watermark with spot color. (PCLXL)

-------------
Firmware Ver.  A01.44_0_4
CU-Loader: 01.07
CU: A1.42
PU: 00.01.35
PortCPU: 00.00.17
DriverCPU: 00.00.25
Duplex: 00.00.22
OptionTray: 00.00.33
IM: 01.00
NIC: Protocol 01.09
     Web 01.07
     Config 01.03

1. Corresponds to the OPTIONAL Envelope dedicated fuser unit (sold separately).
2. Modified to the print speed when "Narrow Paper Speed" sets to "Normal2".    
3. Fixing the problem that test 1 could not be printed when "Spot Color Print" set "Disable".(C941/ES9541/Pro9541)

Note:
The standard fuser works well with most types of envelopes. Some envelopes (usually larger or thicker types) may wrinkle upon fusing.
The newer OPTIONAL "envelope fuser" may reduce or eliminate wrinkling, depending on the envelope.
-------------
Firmware Ver.  A01.42_0_4
CU-Loader: 01.07
CU: A1.41
PU: 00.01.33
PortCPU: 00.00.17
DriverCPU: 00.00.25
Duplex: 00.00.22
OptionTray: 00.00.33
IM: 01.00
NIC: Protocol 01.08
     Web 01.07
     Config 01.02

1. Addition of the menu "Spot Color Print". (C941/ES9541/Pro9541)
   [Admin Setup]-[Color Setup]-[Spot Color Print] : Enable/Disable
   This menu is set to enable or disable of the spot color print.
   If do not use the spot color for a long term, by setting to "Disable", it is possible to reduce the consumption of spot color consumables.
   *In the setting of "Disable", spot color printing will be impossible.
2. Modified to execute the automatic density adjust and automatic registration adjust even spot color toner is empty. (C941/ES9541/Pro9541)
3. Modified to display an error in the density adjust and registration adjust. (Manually execution only)
4. Fixing the problem that may not enter the sleep mode when performing a menu operation immediately after returning from sleep mode.
5. Fixing the problem that may not work even if execute the "Adjust Density" or "Adjust Registration" or "Transfer Roller Cleaning".

-------------
Firmware Ver.  A01.40_0_4
CU-Loader: 01.07
CU: A1.37
PU: 00.01.32
PortCPU: 00.00.17
DriverCPU: 00.00.25
Duplex: 00.00.22
OptionTray: 00.00.33
IM: 01.00
NIC: Protocol 01.07
     Web 01.06
     Config 01.02

1. Reduce the FAN sound at standby mode.
2. Improve the accuracy of print start position.
3. Fixing the problem that the registration misalignment sometimes occurred.

-------------
Firmware Ver.  A01.38_0_4
CU-Loader: 01.07
CU: A1.35
PU: 00.01.30
PortCPU: 00.00.17
DriverCPU: 00.00.25
Duplex: 00.00.22
OptionTray: 00.00.33
IM: 01.00
NIC: Protocol 01.07
     Web 01.06
     Config 01.02

1. Expanded the adjustable range of Registration Adjust.
2. Fixing the problem that the Error002 is sometimes detected.
3. Fixing the problem that printer cannot connect to the network. "Network Initializing" message is frequently displayed on the panel.

-------------
Firmware Ver.  A01.35_0_4
CU-Loader: 01.07
CU: A1.32
PU: 00.01.27
PortCPU: 00.00.17
DriverCPU: 00.00.25
Duplex: 00.00.22
OptionTray: 00.00.33
IM: 01.00
NIC: Protocol 01.07
     Web 01.06
     Config 01.02

1. Fixing the problem that the abnormal noise occurs from the image drum by the toner supply problem.
2. Fixing the problem that the faded print occurs by the toner supply problem.
3. Fixing the problem that the remaining toner display is reduced rapidly when turn ON the power or cover open and close.

-------------
Firmware Ver.  A01.34_0_4
CU-Loader: 01.07
CU: A1.32
PU: 00.01.26
PortCPU: 00.00.17
DriverCPU: 00.00.25
Duplex: 00.00.22
OptionTray: 00.00.33
IM: 01.00
NIC: Protocol 01.07
     Web 01.06
     Config 01.02

1. Fixing the problem that the "Check Fuser Unit" and "Install Toner" are sometime detected when power turned ON, and they can not be cleared.
2. Fixing the problem that the Error106 is sometime detected when power turned ON, and it can not be cleared.
3. Fixing the problem that the Error159 is sometimes detected.
4. Fixing the problem that the Error136 is sometimes detected.

-------------
Firmware Ver.  A01.33_0_4
CU-Loader: 01.07
CU: A1.32
PU: 00.01.25
PortCPU: 00.00.17
DriverCPU: 00.00.25
Duplex: 00.00.22
OptionTray: 00.00.33
IM: 01.00
NIC: Protocol 01.07
     Web 01.06
     Config 01.02

1. Addition of the menu "Specific Media Feed Mode".
This menu is to reduce the paper input JAM that may caused with the specific paper.
2. Reduction the consumption of consumables by the optimization of return operation from sleep mode.
3. Reduction of Density change that occur during printing.
4. Fixing the problem that the printing may be stopped in continuous printing.
5. Fixing the problem that the garble may be displayed at status of OKI LPR utility when the printer is in sleep mode.
6. Fixing the problem that the memory full may occur in PostScript printing.
7. Fixing the problem that the SNMP response may be slow.
8. Fixing for the problem that the IP address may not be fixed from DHCP server that across the segment.
9. Fixing the problem that the short paper is ejected to the face-down stacker that is not allowed to be ejected due to length of paper.
10. During ejecting the remaining paper in printer when jam occurs, the eject destination is now selectable.
11. Fixing the problem that the Error994 is sometimes detected.
12. Fixing the problem that the "Check Fuser Unit" and "Install Toner" is sometimes detected.

-------------
Firmware Ver.  A01.30_0_4
CU-Loader: 01.06
CU: A1.29
PU: 00.01.22
PortCPU: 00.00.17
DriverCPU: 00.00.25
Duplex: 00.00.22
OptionTray: 00.00.32
IM: 01.00
NIC: Protocol 01.06
     Web 01.06
     Config 01.02

1.Addition of the menu "Ultra Heavy Media Adjust Mode".
  This menu is to reduce the dark stripe that may caused by the characteristics of paper in the paper of "Ultra Heavy5" settings.
2.Reduce the density changes that occur during printing.
3.Measures for the problem that rubbing print.
4.Improvement of fixation at film printing with white toner.
5.Measures for the problem that may fail to get IP address from DHCP server.

-------------
Firmware Ver.  A01.24_0_4
CU-Loader: 01.06
CU: A1.25
PU: 00.01.20
PortCPU: 00.00.17
DriverCPU: 00.00.25
Duplex: 00.00.22
OptionTray: 00.00.32
IM: 01.00
NIC: Protocol 01.04
     Web 01.05
     Config 01.02

1. Corresponded to the mechanism change of the fuser unit. (This firmware is compatible with both new and old fuser units)
2. Added for 4-envelope sizes for the US .(Com-6 3/4 Envelope, A2 Envelope, A6 Envelope, and A7 Envelope)

-------------
Firmware Ver.  A01.22_0_4
CU-Loader: 01.06
CU: A1.23
PU: 00.01.19
PortCPU: 00.00.17
DriverCPU: 00.00.25
Duplex: 00.00.22
OptionTray: 00.00.32
IM: 01.00
NIC: Protocol 01.03
     Web 01.05
     Config 01.02

1.By adding new menu "Density Adjustment Media", it became possible to perform density adjustment suitable for printing conditions of media to used.
2.For expansion of the density adjustment range, expanded the upper limit of the menu "Color Density" from +3 to +6.
3.Measures for reduce the uneven density, expanded the lower limit of the menu "SMR Settings" from -3 to -6.
4.Measures for the problem that an error related to the toner cartridge has occurred repeatedly after reaching imaging drum life.
5.Measures for the problem that to stop leaving the paper inside the printer, when an error related to the toner cartridge has occurred.
6.Measures for the problem that becomes unprintable at 5-station model, If execute the swapping of spot color kit during the error709 occurs.

-------------
Firmware Ver.  A01.20_0_4
CU-Loader: 01.05
CU: A1.19
PU: 00.01.17
PortCPU: 00.00.17
DriverCPU: 00.00.25
Duplex: 00.00.22
OptionTray: 00.00.32
IM: 01.00
NIC: Protocol 01.03
     Web 01.05
     Config 01.02

1.Improvement of uneven density at yellow, Y dither is changed
2.Improvement of the PostScript Gamma adjuster utility (required PostScript Gamma adjuster utility version is as follows. Windows:version 1.2.3 or later, Mac OS X:version 2.1.4 or later)
3.Expansion of the adjustable range in the Heavy Media Adjust menu
4.Measures for the problem that Toner Empty may be misdetected when spot color replacing
5.Measures for the problem that the size of receive buffer and resource save area cannot change with the menu
6.Measures for the problem that the displays an unsuitable value by continuing pressing the up/down key in the menu which sets up a numerical value
7.Measures for the problem that an error may be detected by inaccurate packet from an android terminal
8.Measures for the problem that generates white bands on monochrome prints
9.Measures for the problem that generates white bands when printing transparency film

-------------
Firmware Ver.  A01.18_0_4
CU-Loader: 01.05
CU: A1.16
PU: 00.01.16
PortCPU: 00.00.17
DriverCPU: 00.00.24
Duplex: 00.00.22
OptionTray: 00.00.32
IM: 01.00
NIC: Protocol 01.02
     Web 01.05
     Config 01.02

1.Measures for the problem that the dirty and rubbing print
2.Measures for the problem that the density adjust function may not work correctly

-------------
Firmware Ver.  A01.17_0_4
CU-Loader: 01.05
CU: A1.15
PU: 00.01.15
PortCPU: 00.00.17
DriverCPU: 00.00.24
Duplex: 00.00.22
OptionTray: 00.00.32
IM: 01.00
NIC: Protocol 01.02
     Web 01.05
     Config 01.02

1.Addition of the function of size setting at PDF file printing
2.Addition of the compatibility modes of former model(C9600/C9650/C9655/C9800/C9850) in ink simulation of PostScript(printer driver version 1.0.4 or later is required)
3.Improvement of color reproducibility(may occur color tone changes)
4.Measures for the problem that PostScript error report is not printed at error report menu setting is ON
5.Measures for the problem that printing is slow when the PowerPoint data containing transparency is printed by PS printer driver
6.Measures for the problem that error occurs or not printing correctly in the printing of particular file
7.Measures for the problem that intermediate density of Yellow is dark
8.Measures for the problem that top margin of monochrome printing is wider than color printing
9.Measures for the problem that dirty edge print or rubbing print

-------------
Firmware Ver.  A01.12_0_4
CU-Loader: 01.04
CU: A1.13
PU: 00.01.13
PortCPU: 00.00.17
DriverCPU: 00.00.24
Duplex: 00.00.22
OptionTray: 00.00.32
IM: 01.00
NIC: Protocol 01.02
     Web 01.04
     Config 01.02

1.Measures for the problem that density is low while printing thick paper
2.Measures for the problem that the fuser error occurs under certain conditions
3.Measures for the problem that the image is scraping at the paper lower end

-------------
Firmware Ver.  A01.11_0_4
CU-Loader: 01.04
CU: A1.13
PU: 00.01.12
PortCPU: 00.00.17
DriverCPU: 00.00.24
Duplex: 00.00.22
OptionTray: 00.00.32
IM: 01.00
NIC: Protocol 01.02
     Web 01.04
     Config 01.02

1.Addition of the function to fine-adjust Spot Color Position Misalignment(printer driver version 1.0.3 or later is required)
2.Improvement of default CMYK profile
3.Measures for brushed smears or uneven density
4.Addition of the function to adjust images scalling caused in the paper feed direction
5.Measures for the problem that PostScript Spot Color data created by the application cannot be correctly printed
6.Measures for the problem that certain PDF files may fail to be printed
7.Measures for the problem that toner remaining quantities may not be correctly indicated
8.Measures for the problem that an error may be misdetected in duplex printing or Spot Color printing

-------------
Firmware Ver.  A01.05_0_4
CU-Loader: 01.04
CU: A1.09
PU: 00.01.05
PortCPU: 00.00.17
DriverCPU: 00.00.24
Duplex: 00.00.22
IM: 01.00
NIC: Protocol 01.02
     Web 01.03
     Config 01.02

1.Fixing the malfunction that "Color Density" changes
2.Fixing the malfunction that the displayed remaining life of waste toner box is wrong
3.Change of the condition that auto density adjustment is performed


Connect with OKI Europe

linkedin youtube twitter facebook instagram

©1995-2024 Oki Europe Ltd.