Error 11 - Paper Out     

• Paper tray empty or not seated correctly. A buildup of toner on the edges of the tray which slide into the printer can sometimes cause problems. Take a sharp tool, like a razor blade and scrape the buildup of crud off these edges.
• Sensor Arm Stuck or Broken - check for free movement of the sensor arm. On the LJ4/4M/4+/4M+ the sensor flag can get knocked out of place when a paper jam occurs and the tray is pulled out abrubtly. Most times this can simply be reinstalled.
• Defective Tray Size Sensing or Configuration - Most trays have tabs which depress a series of switches when installed. Verify that the tabs aren't damaged and that the tray switches located in the printer are not damaged. You can depress these by hand and hear them click. Occasionally the contact for the microswitch will get bent and will have to be replaced. Also verify the configuration through the menus on the printer.
• Defective Paper Control Sensor PWB - These do fail and will need to be replaced.
  
  
  
  

Error 12 - Printer Open

• Paper path door (IIP/IIIP) or top cover open. On the IIP/IIIP this can be caused by a defective toner cartridge, fan, PS4 or PS5 sensors. On the 4P/5P printers, the top cover is open or no toner cartridge is installed. This error can also be caused by a defective interlock switch assembly.
• On the Laserjet 4/4+ an error 12 can indicate the top cover open or a broken tab on the cover assembly. On rare occasions a defective paper control assembly or actuator can cause this problem.
  
  
  
  

Error 13 - Paper Jam

• Check the paper, make sure it meets the paper specifications for your printer. Tractor feed paper with the edges ripped off doesn't seem to work very well. Extremely heavy thick paper is also a problem. Be careful with labels, use only labels designed to take the heat generated by the fuser assembly. Also check for any partially peeled labels, this can be a disaster if they come off once inside the printer.
• Check the paper path for toner or paper dust buildup. Look for bits of paper lodged in the path.
• You may have a worn pickup roller. Common on the LJII/III series is a worn input pickup roller. Sometimes you can clean these and get a few more miles out of them but when you start to get jams with a smudge on the top middle of the page, it's time to replace both the input pickup roller assembly and the seperation pad. On the IIP/IIIP you can wipe toner/paper dust buildup off the roller and also remove the seperation pad (small cork pad) and clean it as well
• Is the paper size correct? Is the software set for the size you're using? Is the menu set for the size you're using? Check these items.
• You could also have a defective or dirty exit sensor. Replace or clean as needed.
• Make sure the paper cassettes are installed correctly. A buildup of toner on the edges of the tray which slide into the printer can sometimes cause problems. Take a sharp tool, like a razor blade and scrape the buildup of crud off these edges. 7.Bad paper pickup solenoid. On the LJII/III series the rubber damper on the clutch release solenoid can degrade and become sticky and gummy. You can remove it and replace it with a piece of adhesive backed felt. 8.Bad drive gears. Again on the LJII/III we are starting to see more and more failure of the gear drive assembly. A broken tooth on one gear is all it takes. Replace this as an assembly. 9.Listen for the motor operation, make sure it's operational. If not replace the motor or drive circuit as required.
  
  
  
  

Error 14 - No EP Cartridge or No Toner Cartridge

• No toner cartridge or cartridge not fully seated - pull it out and install it again. On the IIP/IIIP the connections for the high voltage are made on the left side of the printer so you may want to favor that side as you install the cartridge.
• On the HP LaserJet/LaserJet Plus (2686A/D) this can be caused by a defective cassette microswitch in which case you will have to repair or replace it.
• On the II and III Series printers, this error message can be caused by a faulty paper control PCA. This is the board mounted to the DC power supply which is in the right front corner of the printer. Press the spring contacts and listen for the micro switches. You should hear a definite clicking.
• On the II and III Series and the IIISi/4Si, make sure at least one of the two drum sensitivity tabs are present. These are small rectangular blocks of plastic which contact the switches in the printer.
• On the 4V/4MV check the toner cartridge microswitch on the High Voltage PWB - SW501.
• Also on the 4V/4MV check the door open sensor (PS402) on the termial board located under the transfer roller.
• Can also be caused by a defective DC controller. Pretty rare though.
  
  
  
  

Error 16 - Toner Low

• Toner cartridge is empty or toner in cartridge is not distributed evenly. Gently shake the toner cartridge both from side to side and from front to back. This can generally get you 100 or so more pages.
• Bad or dirty cartridge contacts. Look for the conductive contacts on the cartridge and the corresponding contacts in the printer and make sure they are clean and free of contaminants.
• Defective High Voltage power supply or on the LJ II/III the DC controller to High Voltage power supply can be defective. Check for opens on the cable.
• IIISi/4Si check the door open sensor flag, PS1. Also check the toner level sensor and the toner cartridge itself for damage. It can also be caused by a defective DC controller. You can verify this by substituting a known good DC controller if possible.
  
  
  
  

Error 16 (PS)

• ALL PRINTERSAn I/O timeout or a prompt for user interacton like a manual feed has been exceded. Check the I/O connections and make sure the proper media is being used.
  
  
  
  

Error 18 - MIO Not Ready

• The printer is not connected to a LAN when it's expecting to see a LAN. Terminate the port on the printer with a BNC T and two 50 ohm terminations.
• The MIO card is defective or maybe just not seated correctly. Remove the card and reseat it, try swapping with a know good card from another printer. Replace if necessary.
  
  
  
  

Error 20 - Memory Overflow

• A large print job has exceded the memory capacity of the printer. Verify that the SIMMS or memory cards are seated. Add more memory or simplify the print job. Remember the original HP Laserjet has only 128K of memory available, the LJ+ has only 512K and neither one is really upgradable.
• On the 5P turn the image adapt and page protect to ON or AUTO. These can be set within the Remote Control Panel. Press GO to resume printing.
• On the 5L, set the Enhanced I/O to AUTO (PCL mode) and resend the print job.
  
  
  
  

Error 21 - Print Overun

• The print job is to complex. Simplify the job by removing font changes etc. On the III, IIID, IIIP, enable page protect if you have and additional 1 MB of memory installed.
• On the 4/4M/4+ and 5:the print job is to complex, enable page protect from the control panel and from the software. You may need additional memory.
• 4LSame thing with to much data or the page is to complex. Simplify the print job. Turn the image adapt and page protect to ON or AUTO either from the control panel or from within HP Explore's Remote Control Panel.
• 5P/5SiSame as above, Press GO to resume printing.
  
  
  
  

Error 22 / 22 - Error/ I/O Config Error/ Par I/O Error/MIO Error

• I/O configuration for the computer or printer is incorrect. Configure is properly.
• Check I/O Cable, it could be the wrong cable or damaged.
• Is the computer on?!
• How about the I/O port - damaged, seated properly, pins not bent?
• 4+/5P/5 The computer and printer aren't talking because of improper signal protocols. Could be a bad cable or loose connection or just a poor quality cable. Reseat the cable and use only high-quality IEEE 1284 compliant cables.
• 5Si Are you using a non-HP MIO device?
  
  
  
  

Error 23 - I/O Not Ready

• ALL PRINTERSThe I/O card is not accepting data. May not be connected - check cabling - or it may be defective. Reseat the card and if avaiable, swap with a known working card. Watch the terminations on the network cabling.
  
  
  
  

Error 24 - Job Memory Full

• The print job is too complex to be processed. Laser printers are page printers and require the page to be processed before beginning to print. Simplify the print job by removing font changes and/or graphics. Add more memory. See Error 30
  
  
  
  

Error 30 - PS Error 16

• ALL PRINTERSThis is an unexpected PosScript firmware error. Reseat the PostScript SIMM and/or replace it.
  
  
  
  

Error 30 - PS Error XX

• ALL PRINTERS PCL file was sent to the printer while in PostScript mode or the PostScript file contains bad data, or you have experienced and application error (crash). You need to check the configuration of your printer and drivers, reset the printer, try issuing an initialization command from within the application. May need to reload your PostScript print driver file.
  
  
  
  

 

Error 50

• A 50 service error can be either a temporary error or a permanent problem requiring service. Temporary Error: Power off for 20 minutes to allow the capacitor on the DC controller to fully discharge. This may clear the error - either temporarily or permanently. If it clears the error it was most likely caused by a low power problem _ i.e. low line voltage causing the power supply circuits to drop out of regulation. Low/unstable power (low line voltage, brownout condition)
• The LaserJet II/IID/III/IIID printers have two common causes of the Service Error 50, a failure of the Triac in the AC power block assembly which requires rebuilding or replacement of the assembly, and a failure of the 14 tooth gear on the fuser assembly causing the roller to either become jammed or not turn at all due to a broken tooth on the gear. Other possible causes are the halogen heater lamp, the thermal fuse or the thermistor. Many times, the upper fuser roller simply becomes worn, the teflon coating begins peeling and a line can result on the printed page. You can check for improper fusing in the area around the line by running your fingernail across the print. It should not rub off! In these cases, the entire assembly must be replaced. It is not cost effective to replace only the defective part - upper roller, single gear, etc. It's like tearing your engine apart to replace a single piston ring.
• When you purchase a remanufactured fuser assembly, be sure you know what parts have been replaced and if OEM or aftermarket parts have been used. Like anything else, there are both acceptable and exceptional parts available. We supply fusers which have been remanufactured using only the highest quality parts available and we replace little things like the white rollers and the gear arm and seperation claws. It's the same old story, you pretty much get what you pay for. All our remanufactured fuser assemblies carry a one year warranty. Our price is $89.95 (Special Internet WEB page price and three quarters hour labor. The labor includes a complimentary 12 point cleaning of your machine and a complete check out. We also recomend you replace the Ozone filter at this time. The ozone filters are UL rated and equivalent to the OEM and priced at $15.95 or $19.95 depending on the age of your printer and the type of filter required.
• On HP laserjet IIP/IIIP/Apple Personal LaserWriter printers, a Service Error 50 is most likely due to defective heater lamp. The halogen lamp burns out and can be replaced quickly. Occasionaly, the power supply is at fault, usually on older machines that were manufactured early in the product life cycle. A manufacturing problem causes premature failure of the power supplies. Give us a call and we can tell you which models and serial numbers are affected.
• On the HP Laserjet 4/4M/4+/4M+, our experience so far has shown the halogen lamp to be responsible for most error 50 problems. The thermal fuse and thermistor are also possible causes of a 50 Service error. We carry this lamp in stock and can replace it in three quarter hour of labor.
  
  
  
  

Error 52

• A service error 52 (Apple Personal LW series indicate this error with the two lower lights flashing) indicates incorrect scanner speed and is generally the same as an error 51. This is a very common failure on the laserjet IIP and Apple Personal laserwriter series. This error can begin as an intermittent error which can be corrected by pressing continue (on HP printers) but it's only a matter of time until you can no longer correct it this way. Early models of these machines had a scanner assembly which contained production defects causing the scanner speed control IC to overheat and burn out. This is sometimes indicated by the very distinct and pugent smell of a printed circuit board burning. When the defective part is removed, the board material under the speed control IC is usually burned. The upgraded assembly part number is RG1-17771-030 available for $89.95. Since the scanner motor assembly on this machine is buried deep in the center of the printer, it requires three quarters of an hour labor to change. On the LJII/III and the Apple Laserwriter II series, this error is generally caused by loose connectors. Many times the scanner motor will rev up and fail to stabalize - indicated by a whining motor sound. A common solution is to tighten the connectors at both the scanner assembly and the DC controller. This is accomplished by removing the connector from it's mate and tweaking or bending in slightly on the connector tabs. Occassionally, the scanner motor will fail in which case it must be replaced. The part is in the $200 range and labor is less than one hour.
  
  
  
  

Error 53

• On the HP Laserjet 4L/4ML/5L this error is indicated by the data light on and all other off.

4L/5L

• Error found in RAM(or ROM, 5L only) - power cycle the printer
• Defective or incompatible memory card - remove card and power cycle the printer
• Defective formatter PCA - replace

On the HP Laserjet 4/4+/4Si/4V/5/4P/4MP the 53.XY.ZZ error code is decoded as follows:

53 (XY-ZZ) where:

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
• ·                     4 = SIMM Slot four
  
  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
• ·                     09 = SIMM ROM mapped to an unsupported address
• ·                     10 = SIMM address conflict
• ·                     11 = ROM out of bounds
• ·                     12 = Could not make temporary mapping
• ·                     A 53.1y08 error is generated in LJ4+ memory is installed in a LJ4 The 53.03.01 error code is decoded as follows: A ROM error in SIMM slot three with unrecognized memory.
  
  
  
  

Error 54

• ·                     IID, IIID Only: Duplex Feed Error
• ·                     Check Duplex Shift Plate for correct position and operation 2686 A/D Only: Main Motor Stall
• ·                     Paper Tray is overfull
• ·                     Fuser drive gears bent
  
  
  
  

Error 58

• ·                     4/4L/4P/4V/5/5PCheck the fan cable - reseat cable or replace fan
• ·                     4VDefective DC controller board - replace
• ·                     IIISi/4SiError 58.1 & 58.2 Improperly seated paper cassette
  
  
  
  

Error 79

• ·                     Software/drivers, Memory PCA's, Font-Macro-Personality Cartridges, option I/O Cards. Defective toner cartridge in the Laserjet 4 Plus only. Remove any accessories (font cartridges, memory PCA's, SIMMs, etc.) plugged into the formatter card and try again. If the problem persists and is application specific, verify proper setup with application vendor.
• ·                     Defective Formater PCA - Replace with known operational board and try again.
• ·                     ALL Printers Improper MIO connection - look at pins on formatter MIO connection Defective MIO Card - Replace card Defective Formatter Card - Replace card
  
  
  
  

Panasonic Models KX-P6100 and KX-P6500 may cause electrical shock. Check for a colored dot on the underside of the machine. A dot means the machine is unaffected. If there's no dot, call Panasonic tech support at 1-800-328-6349 for an inspection (free) and replacement if necessary.