arm2hpdl: 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/arm2hpdl - from package: printer-driver-foo2zjs

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

Error in other languages:
arm2hpdl: bevel nie gevind nie
arm2hpdl: comandă negăsită
arm2hpdl: comando não encontrado
arm2hpdl: commande introuvable
arm2hpdl: command not found
arm2hpdl: käsku ei ole
arm2hpdl: không tìm thấy lệnh
arm2hpdl: komanda nerasta
arm2hpdl: Kommando nicht gefunden.
arm2hpdl: kommandot finns inte
arm2hpdl: komut yok
arm2hpdl: nie znaleziono polecenia
arm2hpdl: níor aimsíodh an t-ordú
arm2hpdl: no se encontró la orden
arm2hpdl: no s'ha trobat l'ordre
arm2hpdl: opdracht niet gevonden
arm2hpdl: parancs nem található
arm2hpdl: perintah tidak ditemukan
arm2hpdl: príkaz nenájdený
arm2hpdl: příkaz nenalezen
arm2hpdl: команда не найдена
arm2hpdl: командата не е открита
arm2hpdl: 命令找不到
arm2hpdl: コマンドが見つかりません