| C4251-40001 | LaserJet 4050/4100 control panel overlay (English) |
| C4251-40002 | LaserJet 4050/4100 control panel overlay (French) |
| C4251-40003 | LaserJet 4050/4100 control panel overlay (Italian) |
| C4251-40004 | LaserJet 4050/4100 control panel overlay (Portuguese) |
| C4251-40005 | LaserJet 4050/4100 control panel overlay (Norwegian) |
| C4251-40006 | LaserJet 4050/4100 control panel overlay (Hungarian) |
| C4251-40007 | LaserJet 4050/4100 control panel overlay (Swedish) |
| C4251-40008 | LaserJet 4050/4100 control panel overlay (Polish) |
| C4251-40009 | LaserJet 4050/4100 control panel overlay (Russian) |
| C4251-40010 | LaserJet 4050/4100 control panel overlay (Czechoslovakian) |
| C4251-40011 | LaserJet 4050/4100 control panel overlay (Korean) |
| C4251-40012 | LaserJet 4050/4100 control panel overlay (Simplified Chinese) |
| C4251-40013 | LaserJet 4050/4100 control panel overlay (Traditional Chinese) |
| C4251-40014 | LaserJet 4050/4100 control panel overlay (German) |
| C4251-40015 | LaserJet 4050/4100 control panel overlay (Spanish) |
| C4251-40016 | LaserJet 4050/4100 control panel overlay (Danish) |
| C4251-40017 | LaserJet 4050/4100 control panel overlay (Dutch) |
| C4251-40018 | LaserJet 4050/4100 control panel overlay (Greek) |
| C4251-40020 | LaserJet 4050/4100 control panel overlay (Turkish) |
| C4251-40021 | LaserJet 4050/4100 control panel overlay (Hebrew) |
| C4251-40022 | LaserJet 4050/4100 control panel overlay (Arabic) |
| C4251-40023 | LaserJet 4050/4100 control panel overlay (Japanese) |
| C4251-40024 | LaserJet 4050/4100 control panel overlay (Thailand) |