ijsgutenprint: command not found

Have You tried accessing the binary with the full path?

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/ijsgutenprint - from package: ijsgutenprint

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