Firmware

Firmware Suite


The Firmware Suite is available for download.

Applicable models

C542; ES5442

* 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_C542_A07.26_0_5_303982.bin
Version A07.26_0_5
File size 266,339,861 Byte
MD5 hash value 3b205ef595d6b8d0097d0c52cd1f5889

Update history

(note) In Firmware Ver A07.22, a log management function has been added to the Web page administrator menu to enhance privacy management.
Please refer to the FAQ for the setting method.
English
https://okiprinting-en-gb.custhelp.com/app/answers/detail/a_id/29284
German
https://okiprinting-de.custhelp.com/app/answers/detail/a_id/29328
Spanish
https://okiprinting-es.custhelp.com/app/answers/detail/a_id/29292
Italian
https://okiprinting-it.custhelp.com/app/answers/detail/a_id/29316
French
https://okiprinting-fr.custhelp.com/app/answers/detail/a_id/29322
Polish
https://okiprinting-pl.custhelp.com/app/answers/detail/a_id/29310
Brazilian
https://okiprinting-pt-br.custhelp.com/app/answers/detail/a_id/29361


Firmware Ver. A07.26_0_5
CU:C7.25
PU:00.01.04
IM:01.02

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. A07.25_0_5
CU:C7.24
PU:00.01.04
IM:01.02

1. Fixing security vulnerabilities.
--------------------------------------------------------------------------------------
Firmware Ver. A07.24_0_5
CU:C7.23
PU:00.01.04
IM:01.02

1. Fixing security vulnerabilities.
--------------------------------------------------------------------------------------
Firmware Ver. A07.23_0_5
CU:C7.22
PU:00.01.04
IM:01.02

1. Fixed a problem that in rare cases AirPrint could not print.
2. Fixed a problem where the image part was painted black when printing with the PCL driver.
--------------------------------------------------------------------------------------
Firmware Ver. A07.22_0_5
CU:C7.21
PU:00.01.04
IM:01.02

1. Fixed a problem that an error may occur when the PC is turned off/on after printing with USB connection.
2. Fixed a problem that the 2nd job may not be printed correctly while printing from the Linux driver with USB connection.
3. Enhanced Privacy control by adding log management features to Web Admin menu
    For more details and how to change settings, please check FAQ.
English
https://okiprinting-en-gb.custhelp.com/app/answers/detail/a_id/29284
German
https://okiprinting-de.custhelp.com/app/answers/detail/a_id/29328
Spanish
https://okiprinting-es.custhelp.com/app/answers/detail/a_id/29292
Italian
https://okiprinting-it.custhelp.com/app/answers/detail/a_id/29316
French
https://okiprinting-fr.custhelp.com/app/answers/detail/a_id/29322
Turkish
https://okiprinting-tr.custhelp.com/app/answers/detail/a_id/29304
Polish
https://okiprinting-pl.custhelp.com/app/answers/detail/a_id/29310
Russian
https://okiprinting-ru.custhelp.com/app/answers/detail/a_id/29298
Brazilian
https://okiprinting-pt-br.custhelp.com/app/answers/detail/a_id/29361
--------------------------------------------------------------------------------------
Firmware Ver. A07.19_0_5
CU:C7.19
PU:00.01.04
IM:01.02

1. Support for SHA256-signed certificates for IEEE802.1X authentication.
2. Measures were taken for network vulnerabilities.
3. Fixed a problem that printing Data in USB Memory may be printed with different font.
4. Fixed a problem that a PS error is occurred by illegal font names.
5. Disable "NetBIOS over TCP" Setup and Report function.
--------------------------------------------------------------------------------------
Firmware Ver. A07.17_0_5
CU:C7.17
PU:00.01.04
IM:01.02

1. Fixed a problem misdescription of toner empty message in Polish error log.
2. Fixed a problem when Error 078 occurred by panel operation.
3. Fixed a problem SC002 occur at the time of creating acertificate.
--------------------------------------------------------------------------------------
Firmware Ver. A07.15_0_5
CU:C7.15
PU:00.01.04
IM:01.02

1. Minor amendment.
--------------------------------------------------------------------------------------
Firmware Ver. A07.14_0_5
CU:C7.14
PU:00.01.04
IM:01.02

1. Treatment of the WPA2 protocol vulnerabilities.
--------------------------------------------------------------------------------------
Firmware Ver. A07.13_0_5
CU:C7.13
PU:00.01.04
IM:01.02

1. Upgrade Google Cloud Print™ security.
--------------------------------------------------------------------------------------
Firmware Ver. A07.09_0_5
CU:C7.09
PU:00.01.04
IM:01.01

1. Fixed a problem that GCP function does not work in Firmware Ver. A07.08.
--------------------------------------------------------------------------------------
Firmware Ver. A07.08_0_5
CU:C7.07
PU:00.01.04
IM:01.01

1. Updated regarding the smart Extendable Platform2.
2. Fixed a problem that print adjusting for tray3 does not work.
3. Fixed a problem that Reconnection does not work even if Reconnection is selected in Easy Setup.
4. Fixed a problem that over 17 charactors can be entered to POP password in EasySetup.
5. Fixed a wording problem that Quiet Mode and Silent Mode becomes the same word in some languages.
6. Fixed a problem that plural errors cannot be displayed in the same time while plural errors(Error:340-343:ID missing) occurs in the same time.
--------------------------------------------------------------------------------------
Firmware Ver. A05.02_0_5
CU:C5.02
PU:00.01.03
IM:01.01

1. Fixed a problem that one of the following status might occur when turning on or restarting the PC connected to the printer with the USB cable.
- Nothing is displayed (Stay in the sleep state)
- The display does not change with key operation
- Does not print
--------------------------------------------------------------------------------------
Firmware Ver. A05.01_0_5
CU:C5.01
PU:00.01.03
IM:01.01

1. Fixed a problem that printer sends unnecessary reply to a certain command.
--------------------------------------------------------------------------------------
Firmware Ver. A05.00_0_5
CU:C5.00
PU:00.01.03
IM:01.01

1. Fixed a problem that when acquisition method of an IP address was established automatically, and an IP address couldn't be acquired, status of 'acquisition failure' isn't indicated.
2. Fixed a problem that a card of the FeliCa Lite-S doesn't react.(Only Japanese model)
3. Fixed a problem that when setting equipment as Duplex=ON and doing simplex print of an envelope from a PS driver, 'duplex printing error' occurs.
4. Fixed a problem that even if the menu of "setting of an attention LED of the near life position" is invalidated, it isn't reflected. (Only overseas model)
5. Indication change of the condition of wireless LAN (the AP mode) information.
--------------------------------------------------------------------------------------
Firmware Ver. A03.04_0_5
CU:C3.04
PU:00.00.34
IM:01.00

1. Fixed a problem that takes time until the device shift to Sleep Mode after printing.
--------------------------------------------------------------------------------------
Firmware Ver. A03.03_0_5
CU:C3.01
PU:00.00.33
IM:01.00


1. Improved to be able to confirm the completion history of the job with a Panel, Web page and Report print.
2. Fixed the Portuguese messages displayed on the panel.
3. Fixed a problem that could not print a URL of the Google Cloud Print registration.
4. Fixed a problem that all jobs are not displayed with "Cancel" when an alarm occurred during printing with "Print All" of private print.
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