Laserjet 4 Troubleshooting

 

Printer Messages
Message	Symptoms	Recommendations
Blank Display	Is the power on?	Check the ON/OFF switch and verify the power is plugged in. Press a Control Panel key to verify problem still exists.
	Is the fan working?	If the fan is working,  the Formatter or the Control Panel may need to be replaced. If the fan is NOT working,  the DC Power Supply or the DC Controller may need to be replaced.
00 READY	Proceed	The printer is ready to use
00 POWERSAVE	Printer is in Power Save Mode.	Press any key to take printer out of Power Save mode. Receipt of data or an error condition will also take printer out of Power Save mode. The job will print when the fuser is warmed up (may take up to 45 seconds).
00 OFFLINE	Printer is off line and not able to receive data.	Press On Line
02 WARMING UP		Wait until printer signals ready.
05 SELF TEST	The non-printing portion of Self Test is in progress.	Wait for the printer to display the 00 READY message.
06 PRINTING TEST PRINTING CONFIGURATION PAGE	Self Test printing.	Wait for the printer to display the 00 READY message.
06 TYPE PRINTOUT	Printing sample characters from available typefaces.	Wait for the printer to display the 00 READY message. Note: The format is different for PCL and PostScript.
06 TYPEFACE LIST PRINTING FONT LIST	Printing a Typeface List.	Wait for the printer to display the 00 READY message. Note: The format is different for PCL and PostScript.
06 DEMO PAGE PRINTING DEMO PAGE	Printing a Demonstration Page.	Wait for the printer to display the 00 READY message. Note: The format is different for PCL and PostScript.
06 CONFIG PAGE	Printing a Configuration Page.	Appears only with PostScript installed in the printer.
07 RESET RESETTING [xxx]	Returns all printer settings to Printing Menu settings, and clears buffered pages, temporary soft fonts, and macros.	Wait for the printer to display the 00 READY message.
08 NVRAM_INIT	Printer is initializing non-volatile RAM.	This allows other personalities to access non-volatile RAM.
08 COLD RESET RESTORING FACTORY SETTINGS	Returns both Configuration and Printing Menu selections to the factory settings.	Ensure that the Configuration Menu settings are correct before placing the printer on-line. Wait for the printer to display the 00 READY message.
RESET=MENU 09 MENU RESET 09 RESET ACTIVE I/O 09 RESET ALL I/O  FACTORY DEFAULTS BEING RESTORED	Follows a Control Panel Reset  selection.	The printer returns all Printing, PCL, PS, and Job Menu items to the factory settings. Clears buffered page data, temporary soft fonts, and temporary macros.
10 RESET TO SAVE	The Printing, PCL, PS, and Config Menus were changed while data, temporary fonts, or temporary macros were present in printer memory, or while the printer was in the middle of a job.	Press Continue or On LIne. Your changes remain recorded in the menu but do not become active until the printer is reset, or the job boundary is detected.
12 PRINTER OPEN CLOSE PRINTER COVER	Is the Top Cover Assembly open?	Ensure the Top Cover Assembly is firmly closed.
	With the top cover open, check that the switch actuator does engage the switch.	Check that the protrusion on the inside of the Top Cover that  engages the switch actuator is not broken.
		The DC Controller PCA mat be defective, and will need to be replaced.
13 PAPER JAM REMOVE PAPER JAM	Open printer and clear any paper within the printer.	Press Continue or On Line  to reprint the page.
	Input Area Jams	Check that the Transfer Roller is fully seated and shows no sign of wear. Check that the Toner Cartridge is fully seated. Check that the cassettes are not overfull and the media is loaded correctly. Ensure that the media meets specs. (media is not too smooth or rough), and it has been stored properly. Ensure that the paper tray is fully seated (especially if printing from the Lower Cassette). Ensure that the spring force of the Lower Cassette is set correctly.
	Registration Area Jams	If paper is damaged at the Registration Sensor, check that the Transfer Charge Roller is properly seated.
	Lower Cassette Paper Jams	The LC Tray (Tray 3) is not fully seated into the printer. Seat the LC Tray firmly into the printer. The Lower Cassette feed pressure (spring force) adjustment is incorrect.
	Fuser Assembly Jams	Check that the Fuser Pressure Roller Levers are down (LJ4 and 4 Plus Only). Check that the Exit Sensor Arm (PS3) is free throughout its travel and that the Exit Sensor Arm is installed correctly.
	False Paper Jams Paper Jam occurs when the last sheet of paper is fed from the tray.	Sensors are damaged or mechanically broken. The sensor wires are damaged or disconnected. The rear door is open. Paper out sensors in the paper tray or envelope feeder may be defective, or the sensor flags may be broken or missing.
13 DUPLEX JAM REMOVE DUPLEX JAM		Check for any paper in the Duplexer area.
14 NO EP CART INSTALL TONER CARTRIDGE	Ensure that the Toner Cartridge is installed correctly (fully seated into the printer).	Try a new Toner Cartridge.
		The High Voltage Power Supply or the DC Controller may need to be replaced.
15 ENGINE TEST	This message is displayed during the execution of a print engine self-test.	When this test is complete, the printer returns to the ready state, but remains off line.
16 TONER LOW	The toner cartridge is almost empty.	Replace the Toner Cartridge. Although you can continue to print for a short while, make sure that the print quality does not degrade past the acceptable level.
		If the TONER LOW message cannot be cleared by shaking or replacing the Toner Cartridge, perform the steps listed for troubleshooting the 14 NO EP CART message.
18 AUX IO INIT	This message is displayed when the MIO (AUX IO) card is in the process of initializing.	During initialization the MIO is not active, but since the printer supports I/O switching, the printer remains on line and this becomes a status message. Display clears automatically (this may take up to a minute, depending upon the card).
18 AUX IO NT RDY	The MIO (AUX IO) card is not ready.	See the user’s manual for the MIO card. The serial and Bi-Tronics parallel ports continue to operate normally. To clear the display, you must remove the card, and power-cycle the printer. The Continue  key does not clear the display.
18 MIO INIT	The MIO card is initializing.	This is a status message. During initialization the MIO is not active, but since the printer supports I/O switching, the printer remains on line. Displays clears automatically (may take up to a minute, depending on the card).
18 MIO NOT READY	The MIO card is not ready or not connected to a working network.	The serial and Bi-Tronics parallel ports will continue to operate normally. To clear the display, switch the printer OFF, remove the card and switch printer ON. Continue  will not clear the display.
20 MEM OVERFLOW 20 INSUFFICIENT MEMORY	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 received. If the error persists, it may be necessary to simplify the print job (such as fewer fonts and less graphics information), or install additional memory.
21 PRINT OVERRUN 21 PAGE TOO COMPLEX	Indicates that the information being sent to the printer is too complex for the printer (the formatting capabilities of the printer cannot keep up with the formatting instructions being sent to it by the computer).	If the error persists, it may be necessary to simplify the job (reduce the number of characters, number of fonts used, number of pixels addressed, cursor repositions, or reduce addressing the same pixel location multiple times). This problem can also be resolved by adding at least one additional memory PCA, and setting PAGEPROTECT=[LTR, LGL, or A4], if applicable.
22 ERROR 22 SERIAL I/O ERROR 22 PARALLEL I/O ERROR 22 HP MIO ERROR	For serial/Bi-Tronics parallel configuration, the computer and printer are not communicating because of improper signal protocols. This is an I/O buffer overrun error.	Parallel configuration: may mean a loose cable connection. Serial configuration: wrong pacing option may be selected. (If you are using an RS232 serial connection, the HP LaserJet printer uses XON/XOFF and DTR signal protocols rather than ENC/ACK protocol.) Press Continue to clear the error message (data is lost).
40 ERROR 40 BAD SERIAL DATA FORMAT 40 HP MIO ERROR	The printer encountered an error while transferring data from the computer.	For serial I/O configuration, the error may have occurred because you turned ON or OFF your computer while the printer was on line, or your printer’s baud rate or parity was not the same as the computer’s. For network MIO cards, this means there was an abnormal connection break. Make sure the printer is set at the same baud rate as the computer. Press Continue to clear the error message. For network MIO cards, see the user’s manual for your card.
41.[X] ERROR 41.x PRINTER ERROR x=1, 2, 4 ,5	A temporary error occurred while printing.	Press the Continue key to clear the error.
41.1 ERROR	Noisy Vertical Sync (VS)	All connectors on the DC Controller, the Laser Drive PCA, the Scanner Connector and the Beam Detect Connector need to be checked.
41.2 ERROR	Beam Detect (BD) weak or unstable.	All connectors on the DC Controller and  the Laser Scanning Assembly connections need to be checked.
41.3 ERROR	Paper Multifeed	Incorrect size selection on the cassette. One of the cassettes is overfull. Remove the extra paper from the overfull cassette. Check the paper for edge damage. Improperly cut edges can lock together causing multi-feeds. Check that the pickup rollers and separation pad are not worn.  Ensure that the corners of the paper are tucked in the tray’s retainers. Check the paper tension adjustment on the optional Lower Cassette, if attached. If the rollers and pad are worn they need to be replaced.
41.4 ERROR	Vertical Sync Late (VS)	The DC Controller and Formatter PCA Connections need to be checked
41.5 ERROR	Undetermined Cause	The DC Controller and Formatter PCA connections need to be checked.
50 SERVICE 50 FUSER ERROR	The following conditions result in a fusing error: Unable to maintain a temperature above approximately 180° C. A temperature above 230° C. A condition wherein a temperature of 165° C (329° F) is NOT reached within 90 seconds after power-up.	If a 50 SERVICE error message is displayed, turn the printer OFF for at least 10 minutes. Failure to wait the full 10 minutes before turning the printer ON results in a continuation of the error message and the shutting off of the fuser lamp current during this time, though the source of the error may have already been resolved. If the error persists  the following components may need to be replaced: The Fuser Unit, the Power Supply Assembly or the DC Controller PCA
51 ERROR 51 PRINTER ERROR	Indicates loss of laser beam for over 2 seconds.	Press Continue to clear this error. A defective Laser/Scanner Assembly can cause a 51 ERROR by spinning the scanning mirror at the wrong speed. The Laser/Scanner Assembly, or  the DC Controller may need to be replaced. Allow the printer to stand 6 hours until any condensation has dissipated.
52 ERROR 52 PRINTER ERROR	Indicates scanner motor is unable to maintain the proper speed.	Press Continue to clear this error. If error persists the Laser/Scanner Assembly or the DC Controller will need to be replaced.
53.XY.ZZ ERROR	An error occurred during configuration and validation of SIMM memory: X Hardware Type: 0:ROM 1:RAM 2:Flash   Y Hardware Device: 0: Internal Memory 1: SIMM Slot 1 2: SIMM Slot 2 3: SIMM Slot 3 4: SIMM Slot 4   ZZ Error Number: 0: Unsupported Memory 1: Unrecognized Memory 2: Unsupported Memory Size 3: Failed RAM Test 4: Exceeded Maximum RAM Size 5: Exceeded Maximum ROM Size 6: Invalid SIMM Speed 7: SIMM Reporting Information Incorrectly 8: SIMM RAM Parity Error   LaserJet 4/4m only 9: SIMM ROM Needs To Be Mapped To An Unsupported Address 10:SIMM Address Conflict 11:PDC XROM out of bounds 12:Could not make a temporary mapping	Replace the SIMM device that caused the error. Pressing Continue allows you to continue but the SIMM device that caused the error is not configured. If the SIMM device has more than one bank of memory, the good banks are configured.
55 ERROR 55 PRINTER ERROR	Indicates a communications problem between the DC Controller PCA and the Formatter PCA.	Pressing Continue clears the error and resumes printing. Perform the Test Print operation to verify DC Controller functionality. If the message persists, the DC Controller will need to be replaced.
57 SERVICE 57 MOTOR FAILURE 57.1 SERVICE	This message indicates that a main motor failure occurred.	Power cycle the printer. If the error persists, the main motor needs to be replaced.
58 SERVICE 58 FAN MOTOR FAILURE 57.2 SERVICE	This errors indicates the DC Controller detects an exhaust fan failure in either the printer or the optional duplexer.	The fan needs to be replaced.
61.[x] SERVICE X=0 - 4	Printer encountered a parity error when accessing the RAM memory SIMM in slot "X". If X=0, the faulty SIMM slot was not detected.	Turn OFF the printer, then back ON. (Data stored in printer is lost.) If the error is still present, turn OFF the printer and verify that the indicated SIMM is correctly installed. Turn ON the printer . If the error is still present, turn OFF the printer, and remove the SIMM board. Turn ON the printer. If the error message does not appear, the problem is on the SIMM board; if the error still appears, the problem is in the printer’s internal memory.
62.[x] SERVICE x=0 - 5	Printer identified a problem while checking its memory. "X" refers to the device the printer was checking when it encountered the error. 0: Internal Memory 1-4: SIMM Slot 5: Cartridge	If the printer contains a SIMM memory board, turn OFF the printer. (Data stored in printer is lost.) Verify that the SIMM is installed correctly, and turn ON the printer. If the error is still present, turn OFF the printer, and remove the SIMM board. Turn ON the printer. If the error message does not appear, the problem is on the SIMM board.
63 SERVICE 63 NEEDS SERVICE	The printer found a problem in its internal RAM memory.	Switch OFF the printer, and then switch ON. (You lose any data stored in the printer.) If the problem persists,  the Formatter PCA needs to be replaced.
64 SERVICE 64 PRINTER ERROR 65 SERVICE 67 SERVICE	The printer identified an internal service error.	If this error appears, turn the printer OFF, and then back ON. If the problem persists, the Formatter PCA needs to be replaced.
68 ERROR 68 NVRAM ERROR	The printer detected an error in the nonvolatile memory (NVRAM).	Press Continue, then check your Control Panel settings. If the problem persists, the Formatter PCA needs to be replaced.
68 SERVICE 68 NVRAM FULL	The printer’s nonvolatile memory is full because new feature sets were installed.	Power the printer OFF, then back ON. If the problem persists reinitialize the NVRAM by pressing the Item  key while powering on the printer. Reset the page count, cold reset paper size, display language, and all other applicable control panel settings.
70 SERVICE HP LJ 4+/4M+ Only	A firmware SIMM problem was identified.	Remove or replace the firmware SIMM.
71 SERVICE HP LJ 4+/4M+ Only	A firmware SIMM problem was identified.	Remove or replace the firmware SIMM.
79 SERVICE [xxxx]	An internal controller error has occurred.	Power the printer OFF, then back ON. If this error persists, the Formatter PCA needs to be replaced. Remove third party memory, if installed. May also be caused by driver or application incompatibilities, or defective toner cartridge.
80 SERVICE [xxxx]	The formatter PCA has been informed of an irrecoverable error by the MIO card.	Power cycle the printer. If the error persists, replace the MIO card.
81 SERVICE [xxx]	Formatter manufacturing error.	Cold Reset the printer. If the problem persists,  the Formatter PCA needs to be replaced.
EE LOAD [envelope size] ENVELOPE FEEDER [envelope size]	The printer received a request for an envelope size that is not loaded currently in the optional envelope feeder, or the feeder is empty. Envelope size may be: COM10, MONARCH, or DL, C5, B5, or ENVELOPE.	Load the correct envelope size into the tray, or press Continue to use the size of media installed in the feeder.
FE CARTRIDGE	An accessory cartridge was removed or replaced while the printer was on line. (This message appears even if the cartridge was not used.)	Power cycle the printer to clear this message. Ensure that the printer is off line when the cartridge is removed or installed. If a font cartridge is not recognized, verify that it is installed correctly.
FI INSERT CART	An accessory cartridge was removed while the printer was in an error state.	To clear this message, insert the cartridge, clear any error conditions, then remove the cartridge.
FR REMOVE CART	An accessory cartridge was installed while the printer was in an error state.	To clear this message, remove the cartridge, clear the pending error condition, then install the cartridge.
ME FEED [envelope size] MANUALLY FEED [envelope size]	This message is displayed when there is a request for a manually fed envelope. Envelope size may be: COM10, MONARCH, DL, C5, B5, or ENVELOPE.	Insert the appropriate envelope size into the MP tray (Tray 1), and press On Line to print.
MF FEED [paper size] MANUALLY FEED [paper size]	This message is displayed when there is a request for manually fed media. Paper size may be: LETTER, LEGAL, EXEC, or A4.	Insert the appropriate media size into the MP tray, and press On Line to print, or press Continue to feed from the Paper Cassette (Tray 2).
PC INSTALL INSTALL TRAY 2	The printer currently has the Lower Cassette or duplexer selected as the paper source, and has detected that the Paper Cassette (Tray 2), which serves as a paper guide for the Lower Cassette, is not installed.	Install (reseat) the Paper Cassette.
xx LOAD [paper size or envelope size] TRAY x LOAD [size] ENVELOPE FEEDER [envelope size]	The printer received a request for a paper or envelope size not available in the printer. The xx is MP (Multi-Purpose), PC (Paper Cassette), or LC (Lower cassette). Paper size may be: LETTER, LEGAL, EXEC, or A4; for MP tray, envelope sizes may be COM10, MONARCH, DL, C5, or B5.	Load the correct paper tray and/or media, or press Continue to use the media in the installed tray(s). The printer continues automatically. Reseat the cassettes. Make sure each cassette is fully seated into the printer. Ensure that the Universal Paper tray selector knob setting matches the installed paper. Make sure  the Control Panel’s or application’s Paper size setting match the tray being used. Ensure that the image is sized correctly (formatted) for the paper size selected. Inspect the tray for damage. If damaged, replace the tray.
Clearable Warning Messages
W1 IMAGE ADAPT MEMORY LOW, PAGE SIMPLIFIED	The printer received a graphics print file that was too complex to print at the requested resolution. The printer automatically processed the file in the highest resolution possible with the memory installed.	Add additional memory to print the file at full resolution. Check the printout for loss of data or print quality.
W2 INVALID PERS REQUESTED LANGUAGE NOT AVAILABLE	The job was not printed because the requested personality, such as PostScript, was not installed.	Install the language in which the files are sent, together with enough memory to support that language.
W3 JOB ABORTED INSUFFICIENT MEMORY JOB CLEARED	The printer was forced to abort the print job because there was not enough installed memory to support the printer language used.
W4 JOB 300/OFF W5 JOB 300/LTR W6 JOB 300/A4 W7 JOB 300/LGL	The job was printed at 300 dpi with page protection set as specified in the message.	To print the job as requested, install additional memory.
W8 JOB 600/OFF W9 JOB 600/LTR W0 JOB 600/A4	The job was printed at 600 dpi with page protection set as specified in the message.	To print the job as requested, install additional memory.
WM MEM CNFIG N/A MEMORY SETTINGS CHANGED	The printer did not have enough memory when switched on to support the previous settings for I/O buffering and /or Resource Saving, probably because you removed a memory SIMM, added a new personality SIMM, or added the optional duplex unit.
WM CHK MEM CNFIG MEMORY SETTINGS CHANGED	I/O Buffering and /or Resource Saving settings were altered when the printer was switched on because the printer did not have enough memory.	This usually occurs after memory has been removed from the printer. (You can check settings by printing a self test.)
WM [personality] MEM FULL [personality] MEMORY FULL	The Resource Saving memory area for the specified personality is full.	Press Continue to continue printing (some data will be lost). The current job will print, but some resources (downloaded fonts, etc.) may not be saved. If this error occurs frequently, you may need to adjust Resource Saving settings.

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