LJ II/III
00 READYProceed; printer is ready to use.
02 WARMING UPWait until printer signals ready.
02 WARMING UP
(Continuously)
Refer to “02 WARMING UP(continuous) Message” section.
04 SELF TESTContinuous Self Test printing.
05 SELF TESTSelf Test in progress.
06 PRINTING TESTSelf Test printing.
06 FONT PRINTOUTPrinting sample characters from available fonts.
07 RESETReturns all printer settings to Printing Menu setiings and clears buffered pages, temporary SORfonts, and macros.
08 COLD RESETReturns both Configuration and Printing Menu selections to the factory settings.
09 MENU RESETReturns all Printing Menu items to factory setiings and clears buffered pages, temporary soft fonts, and macros.
10 RESET TO SAVE
(HP 33449 Only)
Press and hold RESET (until 07 RESETappears) to confirm the accepknce of Ptinting Menu selections (ternporary fonts, macros and buffered data will be deleted), or press CONTINUEor ON LINE(no changes to any selections will be made at this time).
11 PAPER OUT
(HP 33440 Only)
Add media to the input tray. If problem continues, refer to the “11 PAPER OUT Message” section.
12 PRINTER OPENClose the Top Cover Assembly. If problem continues, refer to the “12 PRINTEROPENMessage” section.
13 PAPER JAMOpen printer, clear any paper within the printer, and press CONTINUE or ON LINE to reprint the page. If problem persists, refer to “13 PAPER JAM Message” section.
14 NO EP CRTInstall an EP-S Cartridge. If problem continues, refer to the "14 NO EP CART Message” section.
15 ENGINE TESTEngine test with printout produced by pressing the Test Print button.
16 TONER LOWReplace EP-S Cartridge. If problem continues, refer to. “16 TONER LOW Message” section.
17 MEMORY CONFIG
(HP 33449 Only)
Indicates memory reconfiguration in operation as a result of setting Page Protection ON.
18 SKIP SELFTEST
(HP 33449 Only)
Skips the ROM and RAM portions of the power on self test, activated by holding down the - key and powering on the printer. This should not be used as it compromises printer integrity. (Note: This is for manufacturing use only.)
20 ERROR
20 MEM OVERFLOW
Indicates a memory overflow; too much data is being sent to the printer and the printer has run out of memory. Pressing the CONTINUE key causes the printer to print only the information it has received.
If the error persists, it may be necessary to simplify the print job (i.e., fewer fonts and less graphics information) or have the customer purchase additiond memory.
21 ERROR
21 PRINT OVERRUN
Indicates that the information being sent to the printer is too complex for the printer (i.e., the formatting capabilities of the printer can not keep up with the formatting instructions being sent to it by the computer).
If the error persists, it maybe necessary to simplify the job (i.e., reduce the number of characters or different fonts used, reduce the number of pixels addressed or cursor repositions, or reduce addressing the same pixel location multiple times). With the HP 33449, this problem can also be resolved by adding at least one additional memory PCA and setting PAGEPROTECT=[LTR, LGL or A4].
22 ERROR
22 I/O CNFIG ERR
Indicates that the host computer and the printer are not communicating properly (i.e., the printer and computer baud rates may not match or the handshake protocol may be incompatible).
Note: The printer supports the XON/XOFF (DC1/DC3) and DTR (Data Terminal Ready) handshake protocols. Both signals are sent from the printer during data transmission. The Enquire/Acknowledge (Enq/Ack) protocol is not supported by this printer.
40 ERRORIndicates that an error occurred during the transfer of data from the computer to the printer.
Note: This error occurs if the computer is powered down while the printer is on line or when attempting to use baud rates which do not match.
41 ERRORIndicates that a temporary error occurred in the printed page. If this error occurs, press the CONTINUE key and the printer will repeat the page.
Note: This error most frequently occurs when a Beam Detect Error occurs. If the printer cannot correct the error condition after two seconds, a Beam Detect Malfunction (51 ERROR) will occur.
42 ERROR
42 OPT INTERFACE
Indicates a communications problem has occurred between the Interface/Formatter PCA and the optional interface. Press the CONTINUE key to resume printing. Reseat the Optional I/0 PCA. If the error persists, refer to the documentation for the optional interface.
43 ERROR
43 OPT INTERFACE
Indicates a communications problem has occurred between the Interface/Formatter PCA and the optional interface. If the error persists, refer to the documentation for the Optional I/0 PCA.
50 SERVICEPower off the printer for a minimum of 10 minutes. If the problem continues, refer to the “50 SERVICE Fuser Malfunction” section.
51 ERRORIndicates loss of laser beam for over 2 seconds.
52 ERRORIndicates scanner motor unable to maintain proper speed.
53 ERROR
(HP 33440 Only)
The 53 ERROR indicates that the optional memory installed in the printer is NOT compatible with the Interface PCA. Use HP memory only.
53-1 ERRORUNIT
(HP 33449 Only)
An error was detected on the optional memory card in the front (right slot). Verify that the correct revision level ("B" or greater) of memory is installed in the printer.
53 ERRORUNIT
(HP 33449 Only)
An error was detected on the optional memory card in the rear (left slot). Verify that the correct revision level ("B" or greater) of memory is installed in the printer. Use HP memory only.
55 ERRORIndicates a communications problem between the DC Controller PCA and the Interface/Formatter PCA. Undefined status has been exchanged between the two PCA’S or a status request has gone unanswered.
Perform the Test Print operation to verify DC Controller functiondiality. If the message persists, check for any cable damage. If the message still persists, perform the following:
1. Ensure J209 jumper is in place on the DC Controller.
2. Verify proper DC voltages.
3. Replace the Interface/Formatter PCA.*
4. Replace the DC Controller PCA.*
*HP 33440AB/AU only: In some cases, both the DC Controller and Interface PCA will need to be replaced together.
57-1 ERRORUNIT
(HP 33449 Only)
The memory card in the front (right) slot cannot be configured because it exceeds memory capacity.
57-2 ERRORUNIT
(HP 33449 Only)
The memory card in the rear (left) slot cannot be configured because it exceeds memory capacity.
61 SERVICEIndicates a checksum error was detected during Self Test in the Interface/Formatter PCA ‘s program ROM. If the message persists, replace the Interface/Formatter PCA.
62 SERVICEIndicates a checksum error was detected in the Interface/Formatter PCA’S internal font ROM. If the message persists, replace the Interface/Formatter PCA.
63 SERVICEIndicates an error was detected in either the Interface/Formatter PCA’S Dynamic RAM or an Optional Memory PCA (if installed). Remove any Optional Memory PCAs (if installed) and retest for the error.
If the error message persists, replace the Interface/Formatter PCA.
64 SERVICEIndicates a laser scan buffer error.
Attempt to clear the error by power cycling the printer. If the error persists, replace the Interface/Formatter PCA.
65 SERVICEIndicates a dynamic RAM controller error.
Attempt to clear the error by power cycling the printer. If the error persists, replace the Interface/Formatter PCA.
67 SERVICEIndicates a miscellaneous hardware or address error on the Interface/Formatter PCA. Verify that all cables, font cartridges, and accessories are seated. If the error persists, replace the Interface/Formatter PCA.
68 ERROR
(HP 33449 Only)
Indicates a recoverable error has been detected in NVRAM (Non-Volatile RAM). Press CONTINUE to clear, then verify the Control Panel menu settings: one or more menu items have been reset to their factory default settings during error recovery.
If this condition persists, replace the Interface/Formatter PCA.
68 SERVICE
(HP 33440 and HP 33449)

68 READY/SERVICE
(HP 33449 Only)
Indicates a NVRAM (Non-Volatile RAM) failure has occurred requiring replacement of the Interface/Formatter PCA. The printer can be operated without NVRAM until that time. Press CONTINUE to clear the display. All Control Panel values are set to their factory default settings. The 00 READY message becomes 68 READY/SERVICE to remind the user of the problem.
69 SERVICEIndicates a timeout error has occurred between the Interface/Formatter PCA and the Optional I/0 PCA. Refer to the I/0 Interface documentation.
Remove the Optional I/0 PCA and retest. If the message persists, replace the Interface/Formatter PCA.
70 ERROR
(HP 33449 Only)
The firmware cartridge was not designed for this printer. Turn the printer OFF, then back ON. If the error persists, verify with the cartridge vendor whether the cartridge was specifically designed for this printer.
71 ERROR
(HP 33449 Only)
The firmware cartridge was not designed for this printer. Turn the printer OFF, then back ON. If error persists, verify with the cartridge vendor whether the cartridge was specifically designed for this printer.
72 SERVICE
(HP 33449 Only)
The font cartridge was removed too quickly after it was inserted. Turn the printer OFF, then back ON. This message can also result from a bad font cartridge or bad connectors on the Formatter PCA.
79 SERVICE
(HP 33449 Only)
An unexpected error has been encountered. Document error message. Turn the printer OFF, then back ON. If the message persists, proceed as follows:
Solid: Remove memory PCAs and font macro, and personlity cartridges one at a time. If the problem persists and the printer has an Optional I/0 PCA installed, try a different interface (parallel or serial) if possible.
If the problem continues, replace the Formatter PCA.
Intermittent: Have the customer remove, for a period of time, any non-HP hardware/firmware products attached to the printer. If the problem continues during this test period, replace the Formatter PCA.
Error message documentation should be returned with the defective component.
CONFIG LANGUAGE
(HP 33449 Only)
This message the result of holding down the ENTER key while powering on the printer. Following SELF TEST, the user will need to select the desired display language using the +, -, and ENTER keys.
EC LOAD [envelope size]A user request has been made for an envelope size not currently installed in the printer or the tray is out of envelopes. Load the correct envelope in the envelope tray. Insert a loaded tray and select the loaded envelope size from the Control Panel or press CONTINUE to override.
([Envelope size] may be one of the following: COM10, MONARC, C5 or DL.)
PC LOAD [paper size]This message is displayed whenever there is a user request for a paper size that is not currently installed in the printer (per the Tray Size switches) or the input tray is out of media. Insert the proper loaded tray into the printer or press CONTINUE to override.
([Paper size] may be one of the following: A4, EXEC, LETTER, or LEGAL.)
PE FEED [envelope size]
or PE FEED ENVELOPE
A user request has been made to manually feed an envelope of the indicated size. Feed the envelope through the manual feed slot or press CONTINUE to feed from the tray. If the manual feed operation is not working as expected, perform the “Manual Feed Sensor (PS302) Functional Check" described in this section.
PF FEED [paper size]A user request has been made to manually feed paper of the indicated size. Feed paper through the manual feed slot or press CONTINUE to feed from the tray. If the manual feed operation is not working as expected, perform the “Manual Feed Sensor (PS302) Functional Check” described in this section.
ENVELOPE = [env. size]
(HP 33440)
PE TRAY=[envelope size]
(HP 33449)
This message is displayed whenever an envelope tray is inserted in the printer.
The user must tell the printer what size envelopes are being used by scrolling through the choices (using the + and - keys) and pressing the ENTER key to make the new selection. Press ON LINE or CONTINUE to proceed. If an envelope tray is not being used when this message occurs, reseat the tray. If the problem continues, see “Tray Size Switches Functional Check” in this section. ([Envelope size] may be one of the following COM10, MONARC, C5 or DL.)
FC [LEFT/RIGHT/BOTH]Font cartridge(s) were removed or replaced while the printer was off tine and contained buffered data. Reinsert cartridge(s) and press the CONTINUE or ON LINE key. If the problem continues, try another font cartridge before replacing the Interface/Formatter PCA.
FC [LEFT/RIGHT/BOTH]
NO FONT
(HP 33449 Only)
Font cartridge(s) could not be read by the printer. Reinsert cartridge(s) and press the CONTINUE or ON LINE key. If the problem continues, try another font cartridge before replacing the Interface/Formatter PCA.
FE CARTRIDGEA catiridge has been removed while the printer was on line. Turn printer OFF, reinsert the cartridge, and turn printer ON. If the problem continues, try another cartridge before replacing the Interface/Formatter PCA.
LJ 4L/4ML
LaserJet 4L/4ML LEDsLaserJet 4P/4MP Display PanelDescription & Recommendations

Paper light is on steady. All other lights are off.
PC LOAD [paper size]1. Paper Cassette is empty or missing.
2. Add paper and/or insert cassette.
3. Reseat the cassette.
4. Check if Paper Out flag PS2 (bottom of printer, adjacent to the Pickup D-Roller) is broken or movement is hindered. Unstick or replace the Pickup Assembly.
5. Replace DC Controller PCA.

Paper light is bIinking. All other lights are off.
13 PAPER JAM1. Paper in printer. Clearing Paper Jams.
2. Rear Door Open. Close door and reset printer.
3. Jam removed but printer not reset. Perform front panel reset.
4. Transfer Roller Guide Plate not installed correctly (all 3 tabs must be in position).
5. Stuck or broken flags/sensors. Note where the leading edge of the paper is to determine which paper sensor maybe causing the jam. Ensure sensor flags rotate freely. Replace flags or associated assemblies if broken or if they remain stuck.
6. Paper fragment under oblique rollers (top or front). Remove rollers and clear out paper.
7. Main Motor faulty. Power up the printer and observe if the stacker rollers rotate. If not, replace the Motor.
8. Stuck or Faulty Gears in Gear Train. Replace Gear Train.
9. Toner cartridge not rotating. Refer to “Drum Rotation Functional Check" later in this chapter.
10. Transfer Roller Gear missing or broken. Replace the Transfer Roller.
11. Stuck or broken solenoids. Replace solenoid or associated assembly.
12. DC Controller PCA faulty. Replace PCA.
13. Software related: for example, program in letter, but feeding legal size paper. Change the software paper size setting, or feed the designated size.

Error light is on steady. All other lights are off.
12 OPEN OR NO EP1. Printer’s Top Door is open andior the toner cartridge is missing or not installed properly. Reinstall toner cartridge and close door.
2. Part of the Top Door that pushes the plunger down is broken. Replace the Top Door.
3. Top Door Switch (Plunger Assembly) is broken. Replace (see Figure 7-3).
4. Toner Cartridge Lever Assembly is broken, Replace the Assembly.
5. Faulty Microswitch SW201 (Top Door Switch) on the DC Controller PCA, Replace DC Controller PCA.

Error light is blinking, and all other lights are off.
20 MEM OVERFLOW
21 PRINT OVERRUN
22 ERROR
1. Too much data, or data too complex. Turn Page Protection ON or to AUTO (can be set within HP Explorer’s Remote Control Panel).
2. Add optional memory.
3. Reduce the complexity of the print job.
LaserJet 4P/4MP: Press Continue to resume printing.

Data light is blinking, and all other lights are off.
AF FEED [paper size]
AE FEED[env. size]
1. Insert paper into the manual feed slot. This will fulfill the manual feed request.
2. To avoid manual feed on this job, press the front panel button to override the manual feed request and to feed paper from the paper cassette.
3. To avoid manual feed on future jobs, go into a software application or the HP LaserJet Explorer to change the setting from Manual Feed to Paper Cassette feed.

All four lights on (without pressing the front panel).
Not Applicable (LaserJet 4L/4ML Only)There is a service error. Press and hold the front panel button to display the error light code. This code will be shown only while the button is pressed, The following tables list possible error codes.
NOTE: If no further error code is displayed, yet all four lights remain on continuously, power cycle the printer. If the condition persists, replace the Formatter PCA.

Ready and Error lights are on and all others are off.
50 SERVICE1. Remove power to the printer for 15 minutes. If this doesn’t clear the error:
2. Perform the Fuser Checks shown in the table below.
3. Check the Fuses (FU101 and FU201) on the DC Controller PCA. Replace if faulty.
4. Replace the DC Controller PCA.

Data and Error lights are on and all others are off.
51 ERRORPower-cycle the printer. If this doesn’t clear the error:
1. Reseat the Laser/Scanner Assembly the Scanner/DC Cable Assembly.
2. Replace the Laser/Scanner Assembly.
3. Replace the DC Controller PCA.
4. Replace the Scanner/DC Cable Assembly.

Paper and Error lights are on and all others are off.
52 ERRORPower-cycle the printer. If this doesn’t clear the error:
1. Ensure condensation from moving the printer from a cold to warm environment hasn’t occurred, Allow the printer 6 hours acclimate to the warm room.
2. Reseat the Scanning Assembly.
3. Replace the Laser/Scanner Assembly.
4. Replace the DC Controller PCA.
5. Replace the Scanner/DC Cable Assembly.

Data lights is on and all other are off.
53 [XY-ZZ] ERRORAn error has been found in RAM or ROM.
1. Power-cycle the printer. If this doesn’t clear the error:
2. Power off the printer, remove any additional memory, then power back on. If the message clears, replace the memory card.
3. Replace the Formatter PCA.

LaserJet 4P/4MP: Use the list below to decode the [XY-ZZ] values:
X - Hardware type:
0= ROM
1= RAM
Y- Hardware device:
0= On board RAM/ROM.
1 = SIMM slot one.
2 = SIMM slot tWO.
3 = SIMM slot three.
ZZ - Error Number:
00= Unsupported memory.
01 = Unrecognized memory.
02= Unsupported memory size
03= Failed RAM test.
04= Exceeded max RAM size.
05= Exceeded max ROM size.
06= Invalid SIMM speed.
07= SIMM reporting incorrect.
08= SIMM RAM parity error.

Error light is on; all others are off.
55 ERRORThe Formatter and DC Controller are not communicating. Power-cycle the printer, If this doesn’t clear the message:
1. Reseat the Formatter PCA into the DC Controller connector.
2. Replace the Formatter PCA.
3. Replace the DC Controller PCA.
4. Replace the DC Controller connector.
57 ERRORThe DC Controller has reported a general motor failure. The Main Motor is controlled by the DC Controller PCA, and seated into connector J601. Power-cycle the printer. If this doesn’t clear the message:
1. Reseat the Main Motor into the DC Controller connector.
2. Inspect the Gear Train for debris that would block the free operation of the gears.
3. The toner cartridge may not be rotating. Refer to “Drum Rotation Functional Check later in this chapter.
4. Main Motor faulty. Power-up the printer and observe if stacker rollers rotate. If not, replace the Main Motor.
5. Replace the DC Controller PCA.

Ready, Data and Error lights are on and all others are off.
58 SERVICE1. Power-cycle the printer.
2. Check the fan to determine if it is blocked from operation.
3. Reseat the fan connector on the Laser/Scanner Assembly.
4. Replace the Fan.
5. Replace the Laser/Scanner Assembly.
6. Replace the DC Controller.
7. Replace the connector between the Scanner and DC Controller.

Error light is off; the other lights display some pattern (not otherwise shown in this table).
61-67 SERVICE
70-71 ERROR
72-79 SERVICE
1. Power-cycle the printer.
2. Replace the Formatter PCA.
68 ERROR
68 SERVICE
68 ERROR indicates a recoverable error in NVRAM. Press Continue to clear, then check control panel settings. One or more fields will have been reset to factory defaults during recovery.
68 SERVICE indicates NVRAM is full.
1. Perform NVRAM Reset to clear NVRAM (hold down Item key during power-on).
2. Replace the Formatter PCA.

All lights off (blank display).
[blank]If the printer’s lights remain off (LaserJet 4L/4ML) or the message display panel remains blank (LaserJet 4P/4MP), check the following:
1. (4 L/4ML): Printer is in Intelligent Off mode. Press the front panel button, or open the Top Door.
2. Power is not supplied to the printer. Check power cord connections and power source.
3. Print an engine test print to determine if the print engine is functional, If the test is successful, replace the Formatter PCA.
4. Check FusesFU101 and FU201 on the DC Controller PCA. Replace if necessary.
5. Replace the DC Controller PCA.
6. Replace the connector between the DC Controller and the Formatter.
LJ 5L/6L
LEDsDescription
Paper Out Error. Door Open or No EP Cartridge. Paper Jam.
Memory Error. There is either too much data or the data is too complex.
Incompatible Memory Card.
Manual Feed. The printer is waiting for you to add a piece of paper to the single sheet input slot.
Sleep Mode
Service errors prevent further printer operation until some action is taken. When there is a service error, all of the lights will turn on in a steady state. Press and hold the Front Panel Button to see a pattern in the lights. (The error will only be displayed as long as this button is pressed.)
ROM/RAM Error. An error was found with the ROM or RAM. The printer believes that the ROM is corrupted or an error has been found in the RAM.
Fuser Error. This indicates a fusing assembly malfunction.
Note: Chronic fuser failures or fuser overheating or both are indicators of an uninterruptible power supply or battery backup being used with the printer. Uninterruptible power supplies (UPS) should notbe used with the printer.
Beam Error. There are a number of causes for this error, and some of the causes may be transient. (They may disappear.)
Engine Error. The formatter and engine are not communicating.
Scanner Error. Caused by a scanner malfunction.
Formatter Error.
Firmware Error.
Processor Error.
LJ 1100
Light statusDescription "light off" "light on" “light blinking"
PowerSave mode (or the printer is off)
The printer uses PowerSave mode to conserve energy.
Ready
The printer is ready to print.
Processing Self test page Form Feed
The printer is receiving or processing data.
Buffered data
The printer memory is retaining unprinted data. A file has been sent to the printer that does not contain a from feed at the end.
Manual feed
The printer is in manual feed mode. The printer is waiting for a different size sheet of paper to be placed in the Single Sheet Input Slot or Paper Input Bin.
Door open, no Toner Cartridge, or paper jam
The printer is in an error state.
Paper out
The printer is out of paper.
Memory out
The printer ran out of memory in the middle of a print job.
Reset/Printer initialization
The printer memory is being reset and all previously sent print jobs are being purged. Or, a printer initialization is taking place. All lights blink for 1/2 of a second or longer if initializing.
Fatal error
All lights are on.
Press the Go key to see the secondary light pattern.
Fatal error
ROM/RAM Error. An error was found with the ROM or RAM. The printer believes that the ROM is corrupted or an error has been found in the RAM.
Fuser Error. This indicates a fusing assembly malfunction.
NOTE: Chronic fuser failures, fuser overheating, or both are indicators of an uninterruptible power supply or battery backup being used with the printer. Uninterruptible power supplies (UPSs) should not be used with the printer.
Beam Error. There are a number of causes for this error, and some of the causes may disappear.
Print Engine Error. The formatter and engine are not communicating.
Printer Laser/Scanner Error. Caused by a laser scanner malfunction.
Firmware Error.
Note the LED patterns on the BiTronics error code. Contact HP technical support with this information as well as a description of what data was sent, the errors encountered prior to the firmware error, the condition of the printer prior to the error, and any other information that may help isolate the error.
Incompatible DIMM Error (Accessory Error).
Document Scan Engine Error.
Document Scan Engine NVRAM Error.
LJ 1200
Light statusDescription "light off" "light on" "light blink"
The printer is ready to print.
The printer is receiving or processing data.
The printer is in manual feed mode.
The printer is out of memory.
The printer has an error. The door is open, the media is out, the toner cartridge is installed incorrectly, or the paper is jammed.
A printer initialization is taking place. If all lights blink for a half second or longer in a sequence:
  • The printing is initializing.
  • All previously sent print jobs are being deleted from the printer memory.
  • A cleaning page is printing.
  • The printer has a fatal error. All lights are on.
    The printer has an accessory error. All lights are blinking.
    Fatal error
    Engine error. The formatter and engine are not communicating.
    Laser/scanner error. The laser/scanner has a malfunction.
    Beam error.
    Motor error.
    Fuser error. The fuser has a malfunction.
    Formatter internal RAM or ROM error. The RAM or ROM has an error.
    Fan error.
    Scan buffer error.
    Miscellaneous interface error
    General fatal error
    LJ 2100
    Primary status codes "light off" "light on" "light blink"
    Start-up.
    The Go, Ready, and Attention lights cycle one after another.
    Ready.
    The Ready light is on and the printer is ready to print.
    Processing.
    The printer is receiving or processing data.
    Attention. The printer requires attention for one of the following reasons:
    - a door is open
    - the toner cartridge is missing
    - print media is jammed in the printer
    - media supply is depleted
    Continuable attention error codes
    Continuable error or tray 1 is out of paper. Pressing GO causes the printer to attempt to recover from the error and print whatever it can. If the recovery is unsuccessful, the printer will return to the continuable error state.
    Press GO and JOB CANCEL simultaneously to view the secondary continuable error information.
    General continuable error
    Memory overflow/memory full (20)
    Temporary engine error (41.x)
    Print overrun (21)
    Buffer flow error (22)
    Bad connection (40)
    NVRAM error (68)
    I/O error (81)
    Memory configuration error
    Personality or job-related error
    EIO port error
    DIMM slot 1 incompatible error
    DIMM slot 2 incompatible error
    Fatal Error
    The printer has experienced an error and cannot recover. All the lights are on.
    Note Pressing GO and JOB CANCEL shows the fatal secondary error codes.
    General fatal error (79)
    Engine communication error (55)
    Scanner error (52)
    Bad beam detect error (51)
    Scan motor error (57)
    Bad fuser error (50)
    Formatter internal RAM or ROM error
    Fan motor error (58)
    NVRAM error (68)
    Scan buffer error (64)
    RAM controller error (65)
    Miscellaneous interface hardware error (67)
    Accessory error codes
    An error has occurred with either the EIO port or the DIMM (memory) slots.
    Accessory errors secondary codes
    EIO port error
    DIMM slot 1 incompatible error
    DIMM slot 2 incompatible error
    LJ 4100
    Control panel messageИсточник: Инк-Маркет.ру.
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