HP Laserjets - Entering Service Mode

Note: service mode is intended for repair technicians and generally the only reason to enter service mode is to change the maintenance count.

HP Laserjet 8000, 8100, and 8150 Series service mode

1. Hold down SELECT and JOB CANCEL while powering on the printer, until all lights are illuminated and the Display is blank. (If the Display Panel reads INTERNAL TEST at this point, the keys were released too soon. Repeat this step until successful.)
2. Press MENU, then SELECT. The message SERVICE MODE is displayed briefly, then the printer automatically begins an INTERNAL TEST. After several seconds, both Control Panel Indicators turn off. (The printer may display WARMING UP if it has not warmed up completely.) After the printer has warmed up and passed the self test, SERVICE MODE is displayed.
3. Press MENU once to display SERVICE MENU.
4. Once it says SERVICE MENU press ITEM to scroll through service mode items.
To exit the Service Mode press GO.

HP Laserjet 5si service mode
1 Hold down [Items] and [+] while powering ON the printer, until all lights are illuminated and the Display is blank. (If the Display Panel reads INTERNAL TEST at this point, the keys were released too soon. Repeat this step until successful.)
2 Press [Select]. The message SERVICE MODE is displayed briefly, then the printer automatically begins an INTERNAL TEST. After several seconds, both Control Panel Indicators turn OFF. (The printer may display WARMING UP if it has not warmed up completely.) After the printer has warmed up and passed the self test, SERVICE MODE is displayed.
3. Press [Menus] once to display SERVICE MENU.
4. Once it says SERVICE MENU press ITEM to scroll through service mode items.
To exit the Service Mode press [On Line].

HP Laserjet 4V and 4MV service mode
1. Hold down the [On Line], [Form Feed], and [Enter] keys while powering ON the printer, until all lights are illuminated and the Display Window is blank. (If the Display Window reads 05 SELF TEST at this point, the keys were released too soon. Repeat this step until successful.)
2. Press the [Form Feed] key, then the [Enter] key. The message SERVICE MODE is displayed briefly, then the printer automatically begins a 05 SELF TEST.
After several seconds, both Control Panel Indicators turn OFF. (The printer may display 02 WARMING UP if it has not warmed up completely.) After the printer has warmed up and passed the self test, SERVICE MODE is displayed.
3. Press [Menus] once to display SERVICE MENU.
4. Once it says SERVICE MENU press ITEM to scroll through service mode items.
To exit the Service Mode press the [On Line] key.

HP Laserjet 5000 series service mode
1. Hold down [Select] and [Cancel Job] while turning on the printer.
(If the control panel reads INITIALIZING, the keys were released too soon.)
2. Press the right side of the [Menu] key, then press [Select]. The message SERVICE MODE is displayed.
3. Press [Menus] once to display SERVICE MENU.
4. Once it says SERVICE MENU press ITEM to scroll through service mode items.
To exit the Service Mode press [Go].

HP Laserjet 4100 series service mode
1 While turning on the printer, hold down SELECT and CANCEL JOB until all of the lights on the control panel are lit.
2 Press the right side of the MENU key, then press SELECT. The message SERVICE MODE temporarily appears and will reappear when the printer completes the initialization process.
3. Press [Menus] once to display SERVICE MENU.
4. Once it says SERVICE MENU press ITEM to scroll through service mode items.
5. To exit the service mode, press GO.
Note: If READY appears in the control panel, the keys might have been released too soon, or the wrong keys were pressed.

HP Laserjet 4000 and 4050 series service mode
1 Hold down [Select] and [Cancel Job] while turning on the printer until all of the lights on the Control Panel are lit. (If the Control Panel reads INITIALIZING, the keys were released too soon.)
2 Press the right side of the [Menu] key, then press [Select]. The message SERVICE MODE is displayed.
3. Press [Menus] once to display SERVICE MENU.
4. Once it says SERVICE MENU press ITEM to scroll through service mode items.
5. To exit the Service Mode press [Go].

HP Laserjet 4 and 4 plus series service mode
1. Hold down the [On Line], [Form Feed], and [Enter] keys while powering ON the printer, until the ON LINE and FORM FEED indicators are both illuminated and the Display Window is blank. (If the Display Window reads 05 SELF TEST at this point, the keys were released too soon. Repeat this step until successful.)
2. Press the [Form Feed] key, then the [Enter] key. The message SERVICE MODE is displayed briefly, then the printer automatically begins a 05 SELF TEST. After several seconds, the ON LINE and FORM FEED lights turn OFF.
(The printer may display 02 WARMING UP if it has not warmed up completely.) After the printer has warmed up and passed the self test, SERVICE MODE is displayed.
3. Press [Menus] once to display SERVICE MENU.
4. Once it says SERVICE MENU press ITEM to scroll through service mode items.
5. To exit the Service Mode press the [On Line] key.

HP Laserjet 5 series service mode
1. Hold down the Menu+ and Value+ keys while powering on the printer. Hold the keys down until SERVICE MODE is displayed.
2. The interrupted power-on self test is resumed. If the test completes successfully, the message SERVICE MODE is displayed.
3. To exit service mode, press the Go button.

Laserjets 5P, 6P, 2100, 2200 and other printers that do not have a display panel (LEDs only).
These models are designed as low volume personal printers and do not have a maintenance count that needs to be reset or a readily accessible service mode. You can cold reset these printers or completely reinitialize the NVRAM (nonvolatile ram) to factory defaults. Cold resetting will reset most of the system parameters to factory defaults and reinitializing the NVRAM will reset ALL system parameters to the factory defaults. Also, there is a service mode for these printers but it is only accessible through software using PJL service mode commands. Buy the printer's service manual if you want to learn more.

HP Laserjet 5L, 6L, 1100, 1200 do not have a service mode. You can only perform a cold-reset and continuous self-test.

To clear the Maintenance Service Message from the LCD display:

HP IIISi Printers:

1. Press ONLINE until the light goes off
2. Hold down MENU until PCL CONFIG MENU appears
3. Press the MENU key until SERVICE MSG=ON* appears
4. Press the + or - key to change display to SERVICE MSG=OFF
5. Press ENTER/RESET MENU key to turn message off, the * should appear, then press ONLINE

HP 4Si Printers:

1. Press ONLINE until the light goes off
2. Press MENU until CONFIG MENU appears
3. Press the ITEM key until SERVICE MSG=ON* appears
4. Press the + or - key to change display to SERVICE MSG=OFF
5. Press the ENTER key to turn message off, the * should appear, then press ONLINE

HP 5Si:

1. Press MENU key 4 times for CONFIG MENU
2. Press ITEM to display SERVICE MESSAGE=OFF
3. Press ENTER
4. Press ONLINE

HP 4000/4050/4100/5000 Printers:

1. Turn the printer off
2. Hold down the left side of the ITEM and VALUE +/- keys, turn the printer on and wait until RESET MAINTENANCE COUNT is displayed and then release the keys

HP 4500/4550 Printers:

1. Turn the printer off
2. Hold down the CANCEL JOB and SELECT keys and turn the printer on, then wait until the display goes blank and the three LED's come on
3. Press the right side of the MENU key, then press the SELECT key
4. You will enter SERVICE MODE after the normal test completes
5. Press the ITEM key until the FUSER MAINTENANCE COUNT appears
6. Press VALUE +/- to change to zero
7. Press SELECT to save
8. Press GO; the printer should return to READY

HP 8000/8100/8150 Printers:

1. Press the MENU button until the display reads CONFIGURATION MENU
2. Press the ITEM button until the display reads SERVICE MESSAGE = ON/OFF
3. Select OFF*
4. Press SELECT to save
5. Turn printer off
6. Hold the VALUE MINUS and ITEM MINUS buttons while turning the printer back on Hold buttons down until display reads RESET MAINT/COUNT and then release both buttons

HP 9000 Printers:

1. Turn the printer off
2. Press and hold the CHECK key
3. Power on the printer
4. Release the CHECK key after all three lights come on The display should read SELECT LANGUAGE
5. Press the up arrow until MAINTENANCE KIT is displayed, then press the CHECK key again and the maintenance kit count has been reset

HP Color LaserJet 4500/4550 Printers (TRANSFER KIT RESET):

1. Press the MENU button until the RESETS MENU is displayed
2. Press the ITEM button until TRANSFER KIT SELECT IF DONE is displayed
3. Press the SELECT button

HP Color LaserJet 4500/4550 Printers (FUSER KIT RESET):

1. Press the MENU button until the RESETS MENU is displayed
2. Press the ITEM buton until FUSER KIT SELECT IF DONE is displayed
3. Press the SELECT button
4. Press the GO button to return to READY

HP Color LaserJet 4600 Printer (IMAGE TRANSFER KIT (ETB) RESET):

1. After Maintenance is performed, the display should read NEW TRANSFER KIT =
2. Press the down arrow to highlight YES, then press the CHECK button to reset Or enter CONFIGURE DEVICE in menus, choose RESETS then RESET SUPPLIES, choose NEW TRANSFER KIT and select

HP Color LaserJet 4600 Printer (FUSER KIT RESET):

1. After Maintenance is performed, the display should read NEW FUSER KIT =
2. Press the down arrow to highlight YES, then press the CHECK button to reset Or enter CONFIGURE DEVICE in menus, choose RESETS then RESET SUPPLIES, choose NEW FUSER KIT and select

HP Color LaserJet 8500/8550 Printers (TRANSFER KIT RESET):

1. Press the MENU button until the RESETS MENU is displayed
2. Press the ITEM button until RESET TRANSFER LIFE COUNT is displayed
3. Press the SELECT button to reset, then GO to return to READY

HP Color LaserJet 8500/8550 Printers (FUSER KIT RESET):

1. Press the MENU button until the RESETS MENU is displayed
2. Press the ITEM buton until RESET FUSER LIFE COUNT is displayed
3. Press the SELECT button to reset
4. Press the GO button to return to READY

HP Printer Model	Service Menu PIN Code
LaserJet 2300	11230002
LaserJet 2410	10241004
LaserJet 2420	10242004
LaserJet 2430	10243004
Color LaserJet 3000	11300005
Color LaserJet 3500	10350003
Color LaserJet 3550	10350003
Color LaserJet 3600	11360005
Color LaserJet 3700	10370003
Color LaserJet 3800	11380005
LaserJet 4100 MFP	04410002
LaserJet 4101 MFP	04410002
LaserJet 4200	11420002
LaserJet 4240	04424005
LaserJet 4250	09425004
LaserJet 4300	11430002
LaserJet 4345 MFP	11434504
LaserJet 4350	09435004
Color LaserJet 4600	04460002
Color LaserJet 4610	05465004
Color LaserJet 4650	05465004
Color LaserJet 4700	09470005
Color LaserJet 4730 MFP	09473005
LaserJet 5200	05520006
Color LaserJet 5500	04550002
Color LaserJet 5550	09555004
LaserJet 9000	00900001
LaserJet 9000 MFP	00900001
LaserJet 9050	09905004
Color LaserJet 9500	04950003

HP Printer Model	Service Menu PIN Code
LaserJet 2300	11230002
LaserJet 2410	10241004
LaserJet 2420	10242004
LaserJet 2430	10243004
Color LaserJet 3000	11300005
Color LaserJet 3500	10350003
Color LaserJet 3550	10350003
Color LaserJet 3600	11360005
Color LaserJet 3700	10370003
Color LaserJet 3800	11380005
LaserJet 4100 MFP	04410002
LaserJet 4101 MFP	04410002
LaserJet 4200	11420002
LaserJet 4240	04424005
LaserJet 4250	09425004
LaserJet 4300	11430002
LaserJet 4345 MFP	11434504
LaserJet 4350	09435004
Color LaserJet 4600	04460002
Color LaserJet 4610	05465004
Color LaserJet 4650	05465004
Color LaserJet 4700	09470005
Color LaserJet 4730 MFP	09473005
LaserJet 5200	05520006
Color LaserJet 5500	04550002
Color LaserJet 5550	09555004
LaserJet 9000	00900001
Laserjet 9040	04904005
Laserjet 9050	09905004
Laserjet 9500	04950003
LaserJet 9000 MFP	00900001
LaserJet 9040 MFP	11904004
LaserJet 9050 MFP	09905004
Color LaserJet 9500 MFP	04950003
LaserJet cp4005	10400506
Color laserjet CP3505	06350507
Color laserjet CP4005	10400506
Color laserjet CP6015	03601508
LaserJet M3027	11303506
LaserJet M3035	11303506
LaserJet M4345	11434506
LaserJet M5025	11503506
LaserJet M5035	11503506
LaserJet P3005	10300506
Laserjet P4014	05401408
Laserjet P4015	05401508
Laserjet P4515	05451508