You might remove the driver without using uninstaller.

If you cannot installer driver and uninstall the driver, please use the driver cleaner.

Here is the explanation about the driver cleaner.

 

<Usage>

Zip file contains following 1 folder + 2 files.
  \DPInst
  ctzcleaner.bat
  alldelete.bat

Use the tool after copy the folder somewhere.

Run the tool from DOS prompt.
If the OS is after Vista, it is necessary to start the DOS prompt from "RUN as administrator".
(Right click at DOS prompt)

* By running "alldelete.bat", most of the CITIZEN POS driver will be deleted.
If you want to delete individual model, please refer to following information
and delete the target model.

----------
<Specification>
*How to use bat file.

Format
   ctzcleaner.bat "<Local Printer Name>" "<Printer Driver Name>"

  Ex. ctzcleaner.bat "CITIZEN CT-S310II" "CITIZEN CT-S310II"

  <Local Printer Name> is the name used in "Devices and Printers".
  If you change the name, please enter the name.

  <Printer Driver Name> is the driver name. It is used in server properies.
  The name is basically fixed.

  This "bat" deletes following drivers.

     "CITIZEN CT-S801", "CITIZEN CT-S801 Label"
     "CITIZEN CT-S851", "CITIZEN CT-S851 Black Mark"
     "CITIZEN CT-S601", "CITIZEN CT-S601 Label"
     "CITIZEN CT-S651", "CITIZEN CT-S651 Black Mark"
     "CITIZEN CT-S310", "CITIZEN CT-S310 Black Mark"
     "CITIZEN CT-S310II"
     "CITIZEN CT-S2000", "CITIZEN CT-S2000 Label"
     "CITIZEN CT-S4000", "CITIZEN CT-S4000 Label"
     "CITIZEN CT-S4000 Compress"
     "CITIZEN CT-S281", "CITIZEN CT-S281 Label"
     "CITIZEN CT-S300", "CITIZEN CT-S300 Black Mark"
     "CITIZEN CT-S280"
     "CITIZEN CBM1000 Type II", "CITIZEN CBM1000 Type II Label"
     "CITIZEN PPU-700"
     "CITIZEN CT-P290", "CITIZEN CT-P291"
     "CITIZEN CT-P292", "CITIZEN CT-P293"
     "CITIZEN CD-S500", "CITIZEN CD-S501(503)"

* Installer files of <Printer Driver Name> are also deleted based on 
the assigned GUID for each model.