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HP LaserJet Printers - Cold Reset Instructions and Reference Information


HP LaserJet 4v series general information
HP LaserJet 4v (C3141A)
  • Standard with 4 MB memory,
  • I/O Connections
    • Bi-Tronics parallel interface
    • One open MIO slot.
  • One 250-sheet tray
    • 250-sheet Adjustable Letter/A4 Paper Tray (US) (PN C3160A)
    • 250-sheet Adjustable 11X17/A3 Paper Tray (US) (PN C3161A
HP LaserJet 4MV(C3142A)
  • Standard with 12 MB memory,
  • I/O Connections
    • Bi-Tronics parallel interface
    • HP Jetdirect Ethernet/ LocalTalk interface card.
      NOTE: J4100-61001 does not support LocalTalk.
  • One 250-sheet tray
    • 250-sheet Adjustable Letter/A4 Paper Tray (US) (PN C3160A)
    • 250-sheet Adjustable 11 X 17/A3 Paper Tray (US) (PN C3161A
  • PostScript level 2 capable, Ethernet/LocalTalk Jetdirect (J2552B)
HP LaserJet 4000 series general information
  • Maintenance cycle 200,000 pages, C4118-69001;
  • PCL 5e and PCL 6
  • PostScript level 2 capable;
  • Optional hard disk
  • I/O connection types:
    • 'B' parallel
    • Paper Handling Connector (PHC)
    • Serial
  • Toner cartridges:
    • C4127A 6000 pages
    • C4127X 10,000 pages
HP LaserJet 4000 series comparison table
HP LaserJet4000 (C4118A) HP LaserJet 4000n (C4120A) HP LaserJet 4000t (C4119A) HP LaserJet 4000tn (C4121A)
Standard with 4 MB Standard with 8 MB Standard with 4 MB Standard with 8 MB
One 500-sheet tray One 500-sheet tray Two 250-sheet trays Two 250-sheet trays
  Ethernet (10bT) / BNC / Local talk HP Jetdirect (J3111A   Ethernet (10bT) / BNC / Local talk HP Jetdirect (J3111A)
HP LaserJet 4000 instructions
Self test page
See Configuration page.
Configuration page
  1. Press the MENU key until INFORMATION MENU appears on the display.
  2. Press the ITEM key until PRINT CONFIGURATION appears.
  3. Press the SELECT key.
Cold reset
NOTE: A cold reset resets the HP Jetdirect card. Remove the HP Jetdirect card before performing a cold reset.
  1. Turn printer off.
  2. Hold the GO key down.
  3. Turn printer on.
  4. Continue to hold the GO key down until the printer reads COLD RESET.
    NOTE: If the words Cold Reset do not appear in the display, hold the GO button down until the motors audibly rotate. The words, Restoring Factory Settings , will appear in the display if the cold reset was performed successfully.
  5. Release GO.
    • INITIALIZING appears.
    • Then, RESTORING FACTORY SETTINGS.
    • Followed by OFFLINE.
  6. Press the GO key to put back online.
Engine test
The button is located in the hole below the fan exhaust on the left side of the printer.
Event log
  1. Press the MENU key until the display reads INFORMATION MENU.
  2. Press the ITEM until PRINT EVENT LOG appears.
  3. Press the SELECT key.
HP LaserJet 4050 series information
  • Maintenance cycle 200,000 pages, C4118-69001;
  • Both PCL5e and PCL 6.
  • PostScript level 2 capable;
  • I/O connection types
    • 'B' parallel
    • Serial
  • Infrared/FIR (N-models only)
  • Paper Handling Connector (PHC)
  • Toner cartridges:
    • C4127A 6,000 pages
    • C4127X 10,000 pages
HP LaserJet 4050 series comparison table
HP LaserJet 4050 (C4251) HP LaserJet 4050n (C4253) HP LaserJet 4050t (C4252) HP LaserJet 4050tn (C4254/5)
Standard with 8 MB Standard with 16 MB Standard with 8 MB Standard with 16 MB
One 500-sheet tray One 500-sheet tray Two 250-sheet trays Two 250-sheet trays
  Ethernet (10/100) RJ-45 only HP Jetdirect (J3113A)   Ethernet (10/100) RJ-45 only HP Jetdirect (J3113A)
HP LaserJet 4050 instructions
Self test page
See Configuration page.
Configuration page
  1. Press the MENU key until INFORMATION MENU appears on the display.
  2. Press the ITEM key until PRINT CONFIGURATION appears.
  3. Press the SELECT key.
Cold reset
NOTE: A cold reset resets the HP Jetdirect card. Remove the HP Jetdirect card before performing a cold reset.
  1. Turn printer off.
  2. Hold the GO key.
  3. Turn printer on.
  4. Continue to hold the GO key until the printer reads COLD RESET.
  5. Release GO.
    • INITIALIZING appears.
    • Then RESTORING FACTORY SETTINGS
    • Followed by OFFLINE.
  6. Press the GO key to put back on line.
Engine test
The button is located in the hole below the fan exhaust on the left side of the printer.
Event log
  1. Press the MENU key until the display reads INFORMATION MENU.
  2. Press the ITEM until PRINT EVENT LOG appears.
  3. Press the SELECT key.
HP LaserJet 4100 printer series
Cold Reset
CAUTION: Performing a Cold Reset resets the HP Jetdirect configuration. To avoid making changes to your printer network configuration, remove the HP Jetdirect card before performing a cold reset. If possible, print a Configuration page prior to performing a Cold Reset. This will provide a printout of the current settings for later reference.
NOTE: Cold Reset clears all data from the printer memory and the HP Jetdirect card (if installed) and sets all the defaults back to the factory settings.
  1. Turn off the printer.
  2. While pressing GO, turn the printer on. Release GO when Cold Reset appears briefly on the display, then Initializing appears. After a few seconds, Restoring Factory Settings appears on the display, followed by Offline . The cold reset is complete.
  3. Press GO to return the printer online. Ready appears on the display.
    NOTE: If the words Cold Reset do not appear in the display, hold the GO button down until you hear the motors rotate. The words Restoring Factory Settings will appear in the display if the Cold Reset was performed successfully.
HP LaserJet 4100 MFP and 4101 MFP family general information
Cold Reset
A cold reset clears all data from the printer memory and sets many of the defaults back to factory settings.
  1. Turn the product off.
  2. Press and hold down the checkmark (Select) button.
  3. Turn the product on.
  4. Continue to hold down the checkmark (Select) button until all three LEDs are illuminated. Release the checkmark (Select) button.
  5. Press the up arrow (navigation) button three times. The message COLD RESET will appear on the control panel display.
  6. Press the checkmark (Select) button once. The message STARTS will appear on the control panel display.
  7. When the cold reset is complete, the MFP will restart.
HP LaserJet 4200, 4250, 4300 and 4350 series information
Cold Reset
  1. Turn the printer off.
  2. Turn the printer back on.
  3. Press and hold the checkmark (select) button during the memory test (e.g. 8MB ******).
  4. Hold the checkmark button down until all lights come on.
  5. Press the down navigation arrow until the message Cold Reset appears in the printer display.
  6. Press the checkmark button one more time.
  7. When the Cold Reset is complete the printer will display Ready .
HP LaserJet 5000 series information
  • Maintenance cycle 150,000 pages, C4110-69006
  • Both PCL5e and PCL 6
  • PostScript level 2 capable
  • I/O connection types:
    • 'B' parallel
    • Paper Handling Connector (PHC)
    • Serial (9 pin)
  • 11 x 17 inch paper capability
  • Toner cartridges:
    • C4129A 6,000 pages, C4129X 10,000 pages
  • No envelope feeder available
HP LaserJet 5000 series comparison table
HP LaserJet 5000 (C4110A) HP LaserJet 5000N (C4111A) HP LaserJet 5000GN (C4112A)
Standard with 4 MB Standard with 8 MB Standard with 12 MB
One 250-sheet tray One 250-sheet tray One 250-sheet tray
  One 500-sheet tray One 500-sheet tray
  Ethernet (10bT)/BNC / Localtalk HP Jetdirect (J3111A) Ethernet (10Base-T)/BNC/Local talk HP Jetdirect (J3111A)
    Hard drive (EIO)
LaserJet 5000 series instructions
Test page
See Config page.
Configuration page
  1. Press the MENU key until INFORMATION MENU appears on the display.
  2. Press the ITEM key until PRINT CONFIGURATION appears.
  3. Press the SELECT key.
Cold reset
  1. Turn printer off.
  2. Hold the GO key
  3. Turn printer on.
  4. Continue to hold the GO key until the printer reads COLD RESET.
  5. Release GO.
    • INITIALIZING appears.
    • Then, RESTORING FACTORY SETTING.
    • Followed by OFFLINE.
  6. Press the GO key to put back on line.
    NOTE: A cold reset resets the HP Jetdirect card. Remove HP Jetdirect card before performing a cold reset
Engine Test
The button is located on the inside left of the MP tray.
Event Log
  1. Press the MENU key until the display reads INFORMATION MENU.
  2. Press the ITEM until PRINT EVENT LOG.
  3. Press the SELECT key.
HP LaserJet 5100 series printers
  • 22 pages per minute (ppm) for A4-sized paper, or 21 ppm for letter-sized paper
  • 300 MHz microprocessor
  • First page out = 13 seconds
  • HP ProRes 1200, a 1200-by-1200 dots-per-inch (dpi), HP FastRes 1200 and 600 dpi with Resolution
  • Enhancement Technology (REt)
  • Optional >4 GB EIO hard disk
HP LaserJet 5100 series comparison table
Options/Features HP LaserJet 5100 (Q1860A) HP LaserJet 5100tn (Q1861A) HP LaserJet 5100dtn (Q1862A) HP LaserJet 5100 LE (Q1863A) HP LaserJet 5100se (Q3719A)
Ethernet 10-T/ 10-2 Optional Standard Standard Not available Not available
Input bins (standard/ maximum) 2/4 3/4 3/4 2/2 2/2
Standard RAM 16 MB internal 32 MB 32 MB 16 MB 16 MB
250-sheet feeders (Tray 2, Tray 3) 1 standard

1 optional 		1 standard

1 optional 		1 standard

1 optional 		1 standard 1 standard
500-sheet feeder Optional Standard Standard N/A N/A
EIO hard disk Optional Optional Optional N/A N/A
Duplexer Optional Optional Standard N/A N/A
LocalTalk Optional Optional Optional N/A N/A
Processor 300 MHz 300 MHz 300 MHz 300 MHz 300 MHz
HP LaserJet 5100 series printers instructions
Performing a cold reset
  1. Turn off the printer.
  2. While pressing GO, turn the printer on. COLD RESET appears briefly on the display, and then INITIALIZING appears. After a few seconds, RESTORING FACTORY SETTINGS appears on the display, followed by OFFLINE. The cold reset is complete.
  3. Press GO to return the printer online. READY appears on the display.
HP LaserJet 5Si series printers
  • Maintenance cycle 350,000 pages
  • PCL5e
  • PostScript level 2 capable
  • I/O connection type: Parallel A to B connector
  • Print cartridges: C3909A 15,000 pages
  • High capacity print cartridges: C3909X 17,100 pages
Self-test page
See the Configuration page.
Configuration page
  1. Press the MENU key until Test Menu appears on the display.
  2. Press the ITEM key once, Print Configuration appears.
  3. Press the SELECT key.
Cold reset
CAUTION: A cold reset will reset the HP Jetdirect card, even if removed. Print the Configuration page before performing a cold reset. The customer must have the ability to reconfigure the HP Jetdirect card and be willing to accept this responsibility.
  1. Turn printer off.
  2. Hold the ONLINE key down.
  3. Turn printer on.
  4. Continue to hold the GO key until the printer reads Cold Reset .
  5. Release ONLINE.
    • Initializing appears.
    • Then, Restoring Factory Settings.
    • Followed by Offline.
  6. Press the ONLINE key to put back online.
Duty cycle
100,000 pages per month
Engine test
The button is located in the hole in the upper-back corner of the right side of the printer.
  1. Go around to the right side of the printer.
  2. Locate the upper-right corner of the Tray 1.
  3. See the square hole in the cover of the printer.
  4. The ENGINE TEST button is located here.
Error log
  1. Press the MENU key until the display reads Test Menu .
  2. Press the ITEM until Print Error Log appears.
  3. Press the SELECT key.
HP LaserJet 5Si (C3166A)
  • Standard with 4 MG
  • Two 500-sheet trays
HP LaserJet 5Si NX (C3950A)
  • Standard with 4 MG
  • Two 500-sheet trays
  • Ethernet (10/Base-T) J-45 only Jetdirect card
HP LaserJet 5Si MX (C3167A)
  • Standard with 12 MG
  • Two 500-sheet trays
  • Adobe PostScript Level 2
  • Ethernet (10/Base-T/10Base-2(BNC) J-45 and LocalTalk only HP Jetdirect card
HP LaserJet 5Si Mopier (C4176A, C3763A, and C3774A together make a complete Mopier)
  • Standard with 12 MG
  • Two 500-sheet trays
  • Adobe PostScript Level 2
  • Duplex assembly
  • Ethernet (10/Base-T/10Base-2(BNC) J-45 and LocalTalk only HP Jetdirect card.
HP LaserJet 5Si HM (C A)
  • Standard with 12 MG
  • Two 500-sheet trays
  • Adobe PostScript Level 2
  • Ethernet (10/Base-T/10Base-2(BNC) J-45 and LocalTalk only HP Jetdirect card.
HP LaserJet 8000 series printers
  • Maintenance cycle: 350,000 pages
  • PCL5e and PCL 6
  • PostScript Level 2 emulation
  • I/O connection types:
    • 'A' to 'C' parallel
  • Print cartridges:
    • C3909A - 15,000 pages
    • C3909X - 17,100 pages
  • Maximum memory 192 MB
Test page
See the Configuration page.
Configuration page
  1. Press the MENU key until Information Menu appears on the display.
  2. Press the ITEM key until Print Configuration appears.
  3. Press the SELECT key.
Cold reset
CAUTION: A cold reset resets the HP Jetdirect card. Remove the HP Jetdirect card before performing a cold reset.
  1. Turn printer off.
  2. Hold the GO key.
  3. Turn printer on.
  4. Continue to hold the GO key until the printer reads Cold Reset .
  5. Release GO.
    • Initializing appears.
    • Then, Restoring Factory Settings.
    • Followed by Offline.
  6. Press the GO key to put back on line.
Duty cycle
100,000 pages per month
Engine test
The button is located on the inside left of the MP tray.
Event log
  1. Press the MENU key until the display reads "Information Menu.�?
  2. Press the ITEM until "Print Event Log" appears.
  3. Press the SELECT key.
HP LaserJet 8000 (C4085A)
  • Standard with 16 MG
  • Two 500-sheet trays
HP LaserJet 8000n (C4086A)
  • Standard with 16 MG
  • Two 500 sheet trays
  • Ethernet (10/100Base-TX) Jetdirect card (600n) J3113A
HP LaserJet 8000dn (C4087A)
  • Standard with 24 MG
  • Two 500-sheet trays
  • Duplex assembly
  • Ethernet (10/100Base-TX) Jetdirect card (600n) J3113A
HP Mopier 240 (C4228A)
  • Standard with 12 MG
  • Two 500-sheet trays
  • Duplex assembly
  • External hard drive
  • Ethernet (10/100Base-TX) Jetdirect card (600n) J3113A
    NOTE: As of 1 May 2000 the HP Mopier 240 will not be available as a separate item. It will be available only by purchasing an 8000 and the MFP upgrade kit.
HP LaserJet 8100 series printers
  • Maintenance cycle: 350,000 pages
  • PCL5e and PCL 6
  • PostScript level 2 emulation
  • I/O connection types:
    • 'A' to 'C' parallel
  • Print cartridges:
    • C4182X - 20,000 pages
  • Maximum memory 192 MB
Test page
See the Configuration page.
Configuration page
  1. Press the MENU key until Information Menu appears on the display.
  2. Press the ITEM key until Print Configuration appears.
  3. Press the SELECT key.
Cold reset
CAUTION: A cold reset resets the HP Jetdirect card. Remove the HP Jetdirect card before performing a cold reset.
  1. Turn printer off.
  2. Hold the GO key.
  3. Turn printer on.
  4. Continue to hold the GO key until the printer reads Cold Reset .
  5. Release GO.
    • Initializing appears.
    • Then, Restoring Factory Settings.
    • Followed by Offline.
  6. Press the GO key to put back on line.
Duty cycle
100,000 pages per month
Engine test
The button is located on the inside left of the MP tray.
Event log
  1. Press the MENU key until the display reads Information Menu .
  2. Press the ITEM until the display reads Print Event Log .
  3. Press the SELECT key.
HP LaserJet 8100 (C4214A)
  • Standard with 16 MG
  • Two 500-sheet trays
HP LaserJet 8100n (C4215A)
  • Standard with 16 MG
  • Two 500-sheet trays
  • Ethernet (10/100Base-TX) Jetdirect card (600n) J3113A
HP LaserJet 8100dn (C4216A)
  • Standard with 24 MG
  • Two 500-sheet trays
  • Duplex assembly
  • Ethernet (10/100Base-TX) Jetdirect card (600n) J3113A
HP Mopier 320 (C4229A)
  • Standard with 24 MG
  • Two 500-sheet trays
  • Duplex assembly
  • External hard drive
  • Ethernet (10/100Base-TX) Jetdirect card (600n) J3113A
    NOTE: As of 1 May 2000 the HP Mopier 320 will not be available as a separate item. It will be only available by purchasing an 8100 and the MFP upgrade kit.
MFP Kit (C4166A)
  • HP Digital Copy Module (C4230A)
  • HP Digital Sender Module (C7819A)
  • Hard Drive Assembly (C2985B)
  • 32 MB of additional RAM memory
  • Firmware for the 8100 and 8000
  • EIO Copy Connect Board
  • High Seed Copy Connect Cable
  • Users Guide on CD
  • Installation Instructions

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