ipptool: command not found

Maybe Your $PATH variable doesn't contain the default paths? echo $PATH should give something like:

[root@server ~]# echo $PATH
/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin

If it's empty, You may set the PATH variable with this command

export PATH="/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin"

On Debian possible default full paths are:

/usr/bin/ipptool - from package: cups-client

You may install the required package with command apt-get install {package}

Error in other languages:
ipptool: bevel nie gevind nie
ipptool: comandă negăsită
ipptool: comando não encontrado
ipptool: commande introuvable
ipptool: command not found
ipptool: käsku ei ole
ipptool: không tìm thấy lệnh
ipptool: komanda nerasta
ipptool: Kommando nicht gefunden.
ipptool: kommandot finns inte
ipptool: komut yok
ipptool: nie znaleziono polecenia
ipptool: níor aimsíodh an t-ordú
ipptool: no se encontró la orden
ipptool: no s'ha trobat l'ordre
ipptool: opdracht niet gevonden
ipptool: parancs nem található
ipptool: perintah tidak ditemukan
ipptool: príkaz nenájdený
ipptool: příkaz nenalezen
ipptool: команда не найдена
ipptool: командата не е открита
ipptool: 命令找不到
ipptool: コマンドが見つかりません