HP LaserJet and HP Color LaserJet Series Printers - Information about Ozone Emissions

Overview

As laser printing has become more popular, HP Color LaserJet and LaserJet series printer emissions have raised concern. Much of the information (or lack of information) has caused undue alarm about the use of these products. Emissions from these printers are below the standard levels established by various regulatory agencies and standard-setting organizations. The following information addresses the issues surrounding ozone and provides a better understanding of what ozone is, its effects, how it is measured and what can be done to control it. NOTE: The HP LaserJet IIP, IIP Plus, and IIIP series printers generate ozone emissions far below 0.1 parts per million while printing. The HP LaserJet IIISi, 4, and 4M series printers do not emit ozone at any time. The reason is that none of these printers have corona wires.

Sources of ozone

Ozone is a pure oxygen molecule containing three atoms of oxygen instead of two. Ozone is present in the air, but the highest concentration is found in the earth's upper atmosphere. Ultraviolet radiation creates the primary source of ozone. Other sources of ozone are created by electrical discharges and are what people detect when they say they "smell electricity." Some people sense this smell near electric motors, high voltage lines, or after lightning storms. The ozone generated by some laser printers and photocopiers is a by-product of the electro-photographic process and is generated when the corona assemblies place charges onto photo-conductive materials. In the case of HP Color LaserJet and LaserJet series printers, this ozone is generated only while printing (while the coronas are energized). No ozone is generated when the HP LaserJet series printer is in standby mode.

Effects of ozone

The ability to detect the odor of ozone varies greatly among people. Likewise, the sensitivity of people to ozone is different. Ozone can cause eye, nose, throat, and lung irritation. It can also cause headaches and dryness of the eyes, nose, and throat. The smell of ozone in low concentrations is often described as sweet. In higher concentrations, however, it is more pungent. Most people are not affected by ozone emissions from a laser printer. The ozone generated by laser printers has a very short life span and decomposes back to oxygen very rapidly. In the average office, ozone concentrations usually will not last longer than a few minutes.
Air emissions and regulations
HP characterizes the ozone emissions from all printer platforms to commercial release of the products. These systems are tested by printing on multipurpose paper in controlled environmental chambers, and the ozone emission rates are directly determined. These rates are subsequently used to calculate the concentration of ozone expected in an office environment with low air ventilation, but with a high printing rate. These ozone concentrations are then compared to worldwide occupational exposure limits, as well as more stringent indoor air quality guidelines. Specifically, the US OSHA Permissible Exposure Limit of 0.2 milligrams per cubic meter, and the GREENGUARD ecolabel criteria of 0.02 mg/m3 are referenced. In considering ozone concentrations in the "default" office scenario mentioned above, the few older printer models (and the HP Color LaserJet 8500 series printer) with required filters are well below the PEL, and the newer printer models generally yield non-detectable results.
HP LaserJet & HP Color LaserJet Series Printers - Information about Ozone Emissions
Typical ozone emissions (mg/m3) for recent HP Color LaserJet and LaserJet series printers

HP HP HP LaserJet HP Color HP HP LaserJet 4000, LaserJet LaserJet 2100, 4050, LaserJet Color US 4500, 8500 2200, 8100, 8150 LaserJet 4100, 4550,4600, OSHA GREENGUARD* and and and 5000 PEL* 4650, and and series series 5500 series series series 5100 printers*** printers printers*** printers printers series *** printers

0.200 0.020

<0.001
*US OSHA PEL is the regulatory limit for occupational exposures - significant worldwide limits are generally very similar to this value. **GREENGUARD criteria for the US ecolabel program is the maximum concentration allowed for a "low-emitting" printer. ***Reported values are based on the concentration of ozone determined by the following factors: A 32 cubic meter room With 0.8 air changes per hour Printing on multipurpose paper for two hours, over an eight hour day
Customer/employer responsibility
The customer needs to ensure that a printer is installed in a work environment that will ensure its safe operation. In general, the system should be located in an open area that provides good ambient air movement and an adequate distance from the user (not situated directly adjacent to the exhaust vent). In an occupational environment, the employer is responsible for ensuring that actual ozone concentrations are below limits specified in the recognized workplace safety regulations. The employer may want to analyze the ambient air in the immediate area.
Conditions for printer set-up and operation
For use associated with the printer operation, see the User Manual that comes with the printer. Also, the following steps are suggested to minimize any remote issues with ozone: Ensure proper ventilation for the printer Ensure proper office conditions with regard to humidity Observe the proper site locations for the printer to ensure proper air movement and ventilation within the work area Ensure the direction of the printer exhaust is not in close proximity or pointed towards an individual Where a filter is utilized, ensure replacement at suggested intervals

Changing ozone filters

NOTE: The products NOT in the following table use a different technology that does not generate measurable amounts of ozone, therefore an ozone filter is not necessary. All the HP LaserJet series printers listed below use an ozone filter. For the products that are listed, the following information on ozone filters is applicable. HP recommends that the ozone filters be replaced every three to four years or 50,000 pages, whichever occurs first, to ensure that the printer is operating at HP LaserJet & HP Color LaserJet Series Printers - Information about Ozone Emissions

its safest level. The filters do not wear out; however, they can become clogged with dust, which greatly reduces their effectiveness. The chart below defines which HP LaserJet printer models have filters that can be user-installed and those that need to be installed by authorized HP LaserJet series printer service personnel. Product HP LaserJet series printer HP LaserJet 500 Plus series printer Product Number HP 2686A (discontinued) HP 2686D (discontinued) Filter FA2-5664-020CN (discontinued) FA2-5664-020CN (discontinued) RG1-1753-000CN User Replaceable? No No No*
HP LaserJet Series HP 33440 II series printer (discontinued) (Manufactured before Aug. 1988) HP LaserJet Series HP 33440 II series printer (discontinued) (Manufactured after Aug. 1988)

RF1-2130-000CN

HP Color LaserJet HP C3983A 8500 series printer
RB1-9807-000CN (large) Yes RB1-9808-000CN (small) FA2-5541-000CN (discontinued) RF1-2130-000CN RF1-2130-000CN RF1-2130-000CN No Yes Yes Yes
HP LaserJet 2000 series printer HP LaserJet IID series printer HP LaserJet III series printer HP LaserJet IIID series printer
HP 2684A/D/P (discontinued) HP 33447 (discontinued) HP 33449 (discontinued) HP 33459 (discontinued)
* Part number RG1-1753-000CN provides a new user-replaceable ozone filter housing (so that the filter can be user-replaceable) and a replacement filter (part number RF1-2130-000CN). HP recommends that authorized HP Color LaserJet and LaserJet series printer service personnel install this kit. NOTE: There are no special disposal requirements for ozone filters. Because ozone decomposes back to oxygen rapidly, no hazards are associated with used ozone filters. The filter is simply a carbon screen that acts as a catalyst. The filter itself contains no ozone.

Conclusion

HPs goal is to continually improve its products to make a positive contribution to the environment. HP also aims to inform its customers of all pertinent information concerning the use and safety of its products. However, the customer is ultimately responsible for making sure the work place is safe and comfortable. If an abnormal operating condition exists, such as those described above, it is the customers responsibility to correct the situation.

MF Ready

MF Feed [paper size]

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LaserJet 4P Printer insert the appropriate media into the manual feed slot and it will automatically pull the paper. ME Feed envelope HP LaserJet 4, 4M, 4Plus, 4Mplus, 4Si, 4Si MX, 4P, 4MP Printers The printer requested that an envelope be manually fed. Envelope size may be: COM 10, Monarch, DL, C5, B5, or Envelope. Insert the appropriate envelope size into the MP tray (Manual feed guides on HP LaserJet 4Si Printer) and press online to print. On the HP LaserJet 4P Printer insert the appropriate media in the manual feed slot and it will automatically pull the paper.

MP Load LC Load LE Load

HP LaserJet IIP, IIP+, This message appears when the IIIP Printers multi-purpose tray, the lower cassette or lower envelope tray are empty and have been chosen by the front panel as the selected paper tray. Load correct paper size and put the printer back online. Verify MP (Multi-Purpose) and LE (Lower Envelope) sizes are properly set. HP LaserJet 4, 4M, 4Plus, 4Mplus Printers The printer received a request for a paper or envelope size not available in the printer (or the tray is empty). The MP=Multi-Purpose, PC=Paper Cassette and LC =Lower Cassette. Paper size may be Letter, Legal, Exec, OR A4; for MP Tray, envelope 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. The printer received a request for a paper size not available in the printer or the paper cassette is empty. PC =Paper Cassette. Paper size may be Letter, Legal, Exec, or A4. Load the correct paper size in tray or press continue to use the media in the installed tray. HP LaserJet 4Si, 4Si MX Printers The printer received a request for a paper size not available in the printer or both paper trays are empty. The UC=Upper Cassette and LC =Lower Cassette. Paper size may be Letter, Legal, Exec or A4. Load the correct paper size in tray or press continue to use the media in the installed tray. Description/Action Required The printer received a request for an envelope size that is not currently loaded in the optional envelope feeder or the feeder is empty. Load the correct envelope size into the feeder, or press Continue to use the
MPLoad PCLoad LCLoad [paper size]
Error Message EE Load COM10 EE Load Monarch EE Load DL
Printer HP LaserJet 4, 4M, 4Plus, 4Mplus, 4Si, 4Si MX Printers

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EE Load C5 EE Load B5 EE Load Envelope MP Empty LC Empty LE Empty

PCL Print Menu

HP LaserJet IIISi printer

PCL Config

00 PCL Ready 00 PS Ready
HP LaserJet IIISi printer HP LaserJet IIISi printer All

02 Warming Up

04 Self-Test
HP LaserJet II, IID, IIP, IIP+,III, IIID, IIIP, IIISi, 4, 4M, 4Plus, 4Mplus, 4Si, 4P, 4MP Printers

05 Self-Test

HP LaserJet II, IID,

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IIP, IIP+,III, IIID, IIIP, IIISi, 4, 4M, 4Plus, 4Mplus, 4Si, 4P, 4MP, 500 Series Printers 06 Config Page 06 PS Config Page HP LaserJet 4, 4M, 4Plus, 4Mplus, 4Si, 4Si Mx, 4P, 4MP Printers
"sticks" on 05 Self-Test, turn the printer off and back on. If the message persists, consult service.
Printing a PCL configuration Page. No action required.
Printing a PostScript configuration page. No action required. Error Message 06 Demo Page Printer HP LaserJet 4, 4M, 4Plus, 4Mplus, 4Si, 4Si MX, 4P, 4MP Printers HP LaserJet II, IID, IIP, IIP+, III, IIID, IIIP, IIISi, 4, 4M, 4Plus, 4Mplus, 4Si, 4Si MX, 4P, 4MP Printers HP LaserJet II, IID, IIP, IIP+ III, IIID, IIIP, IIISi Printers Description/Action Required Printing a PCL Demonstration Page or PostScript Demonstration Page. No action required. Self-Test is printing a single output sheet titled "Self-Test."

06 Printing Test

06 Font Printout
Printing sample characters from available downloaded permanent soft fonts, internal fonts and installed cartridge fonts along with their respective escape characters. Note: Series II font printout does not show escape sequence characters. Printing a list of the typefaces resident in the printer.

06 Typeface List

HP LaserJet 4, 4M, 4Plus, 4Mplus, 4Si, 4Si MX, 4P, 4MP printers All (Except 2686A)

07 Reset

Returns all printing menu items to selected settings and clears buffer pages, temporary soft fonts and temporary macros. Returns all configuration and printing menu selections to the factory default settings. This is performed by holding down the online key while turning the printer on. The purpose is a "last resort" effort to clear the printer of any suspected glitches. It is advisable to run a 05 Self-Test before the reset to retain a hard copy of all the current printer settings. HP LaserJet 4 Printer - this reset returns all Printing, PCL, Job, Config, Parallel, Serial, Aux I/O (if installed), and installed personality menu settings to factory default configuration. The exceptions are page count, MP tray size, envelope feeder size and display Language. HP LaserJet 4Si Printer - this

08 Cold Reset

HP LaserJet II, IID, IIP, IIP+ III, IIID, IIIP, IIISi Printers
HP LaserJet 4, 4M, 4Plus, 4Mplus, 4Si, 4Si MX, 4P, 4MP Printers

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reset returns all Printing, PCL, Job, Config, Parallel, MIO (if installed), and installed personality menu settings to factory default configuration. The exceptions are page count and display Language. HP LaserJet 4P Printer - this reset returns all Printing, PCL, Job, Config, Parallel, Serial and installed personality menu settings to factory default configuration. The exceptions are page count and display language. This reset may need to be done when an MIO card is installed. Use with caution; always do a self-test before the cold reset to maintain a record of the printer's current settings. In a shared environment, this reset should only be performed by the system administrator. To do a cold reset, hold down the [online] key while switching the printer on until 08 Cold Reset appears in the printer's display. 68 Cold Reset HP LaserJet IIISi Printers The printer's non-volatile memory is new, or the battery is dead. The printer returns all Printing and Configuration menu selections to factory default. If the printer is set up as a PostScript printer, the 68 reset will return it to PCL status. If the message always appears when the printer is turned on, the printer will still operate, but it should be serviced to correct the problem. The printer clears all buffered pages, temporary soft fonts and temporary macros. (This reset returns all Printing Menu settings back to the factory default settings.) Clearing the page buffer, removing all perishable personality data such as temporary typefaces, and clearing the input and output buffer for all I/Os. Clearing the page buffer, removing all perishable personality data such as temporary typefaces, and clearing the input and output buffer for the active I/O only. Changes in the menu were made

09 Menu Reset

HP LaserJet II, IID,IIP, IIP+, IID, III, IIID, IIIP, IIISi, 4, 4M, 4Plus, 4Mplus, 4Si, 4P, 4MP Printers HP LaserJet 4, 4M, 4Plus, 4Mplus, 4Si, 4Si MX, 4P, 4MP Printers HP LaserJet 4, 4M, 4Plus, 4Mplus, 4Si, 4Si MX, 4P, 4MP Printers HP LaserJet IID, IIP,

09 Reset All I/O

09 Rst Active I/O

10 Reset To Save

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IIP+, III, IIID, IIIP, IIISi, 4, 4M, 4Plus, 4Mplus, 4Si, 4Si MX, 4P, 4MP Printers
with data present in the print buffer. Press and hold [Continue/Reset] until 07 Reset appears to confirm the selections (temporary macros and temporary fonts will be deleted) or, press [Continue/Reset] or [Online] (no changes to any menu selections will be made. The Printing, PCL, Job, Config, and installed personality (PS, etc.) 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 online and the changes will remain recorded in the menu (marked with an *) but will not become active until the printer is reset or the job boundary is detected. If the printer is reset (press Reset) to immediately activate the selection, temporary macros, temporary fonts, and buffered data will be deleted.

11 Paper Out

HP LaserJet, Plus, 500 Paper tray is empty. If there is paper Plus, II Printers in the tray and the printer still displays 11, verify the tray is all the way in. If the message persists, consult service. HP LaserJet II, IID, III, IIID, IIISI, 4, 4M, 4Plus, 4Mplus, 4Si, 4Si MX Printers The printer's top cover is not correctly closed, or the toner cartridge is not correctly installed. Verify the toner cartridge is fully seated and close the printer firmly. Plugging a 220V model printer into a 120V power source can also result in this message. If this message persists, a repair may be required. The printer is not closed properly, the toner cartridge is missing, broken, or defective, or the cooling fan is not working. Plugging a 220V model printer into a 120V power source can also result in this message. Ensure the printer is firmly closed. If the message persists, consult service. Description/Action Required Remove jammed paper. The top must be opened and closed (the front on the IIP, IIP+, IIIP) to clear the message. Double check the duplexing paper path on the IID and IIID (left side door). If the message persists, there may be a malfunctioning paper path sensor and service would be needed.

12 Printer Open

12 Printer Open Or No EP
HP LaserJet IIP, IIP Plus, IIIP, 4P, 4MP Printers
Error Message 13 Paper Jam
Printer HP LaserJet II, IIP, IIIP, IID, IIP+, IIID Printers
13.X Paper Jam 1 internal
HP LaserJet IIISi, 4Si, Paper is jammed somewhere along 4Si MX Printers the paper path. The value that follows the "13" in the message window will

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2 input 3 duplex 4 output 13 Paper Jam HP LaserJet IID, IIID Printers
indicate in which part of the paper path the paper is jammed. Also, the paper jam sensor at the rear of the fusing assembly may have become stuck. Check the optional duplexing paper path if the duplexer has been installed. Paper jams can occur in these printers when using the "automatic manual feed" as opposed to explicitly putting the printer in manual feed mode. The use of "automatic manual feed" is not a supported feature, nor is it a suggested procedure. This procedure is known to cause problems, particularly when using the lower cassette as the manual feed slot because it is more difficult to align the paper properly when it is pulled in from the lower input slot. Paper is the only print media that should be fed from the lower input slot and other types of media may not only cause jamming, but also permanent printer damage. Paper is jammed in the paper path or the paper jam sensor at the rear of the fusing assembly may be stuck, causing a false paper jam warning. Remove jammed paper. While clearing paper jams the top cover or rear cover must be opened and closed again before pressing Continue or online to resume. Check that the rear cover is closed; an open rear cover may cause a paper jam. If no paper jam is found, check locations shown in the user's manual. Paper is jammed in the top or rear of the printer. Clear jam and press Continue or Online to resume printing. To prevent further jams, verify the rear door is closed securely. A false paper jam message will occur if the printer's back door is open. If message persists, the printer could have a defective paper jam sensor and service would be required. There is no toner cartridge in the printer, or this message indicates the possibility of a broken or damaged toner cartridge. Turn the printer off and back on. If the message returns replace toner cartridge. After replacing cartridge if the message still occurs consult service. Engine Test with a single sheet of vertical line printout also known as a

18 MIO Not Ready

HP LaserJet 4Plus, 4Mplus Printers
18 Upper MIO 18 Lower MIO

HP LaserJet 4Si Printer

Error Message 19 Add Memory
Printer HP LaserJet IIP, IIP Plus Printers HP LaserJet II, IIP, IIP+, IID Printers

20 Error

NOTE: HP no longer offers added memory for HP LaserJet, HP LaserJet Plus, HP LaserJet 500 Plus, HP LaserJet Series II, or HP LaserJet IID printers. Error Message 20 Mem Overflow Printer HP LaserJet IIIP, III, IIID, IIISI, 4, 4M, 4Plus, 4Mplus, 4Si, 4Si MX, 4P, 4MP Printers Description/Action Required The printer received more data from the computer than can fit in its available user memory. You may have tried to transfer too many macros or soft fonts, or graphics that were too complex. Press SHIFT and Continue to print the transferred data (data loss may result), then simplify the print job or install additional memory.

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NOTE: Without additional memory, the HP LaserJet III family printers have some limitations when using large point sizes in scaleable fonts. This limitation also depends on the number of scaleable fonts per page and the font characteristics. Error Message 21 Error Printer Description/Action Required
HP LaserJet IIP, The printer is unable to process IIP+, II, IID Printers very complex data fast enough for the print engine. Multiple addressing of single pixels, too many different fonts or characters in a document or too many cursor position addresses per document will cause this error. Press Continue to resume printing. Repair is not required. Workarounds: 1. Reduce the document's complexity by using fewer fonts and removing bolding, shading, or underlining. 2. Reduce the document's graphics resolution.

21 Print Overrun

HP LaserJet IIIP, III, IIID, IIISI, 4, 4M, 4Plus, 4Mplus, 4Si, 4Si MX, 4P, 4MP Printers
Complex data (rules, graphics, dense text) have caused the printer's page formatting process to "fall behind" the printing process. For the 4 family this problem is also caused by printing too many typefaces at 600 dpi, or by printing a PostScript job at 600 dpi using only the printers base memory. Workarounds: 1. Reduce the document's complexity by using fewer fonts and removing bolding, shading, or underlining. 2. Reduce the document's graphics resolution. 3. Select the printer's Page Protect option (Letter, A4, Legal). The following amounts of optional printer memory are required to use the "Page Protect" feature: HP LaserJet III Printer Family Requires 2 MB to use page protect at Letter, A4 or Legal sizes. HP LaserJet 4 Printer Family

41 ERROR

41.1 Error 41.3 Error 41.4 Error 41.5. Error
HP LaserJet 4, 4M, 4Plus, 4Mplus, 4P, 4MP Printers

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knob on the 250 or 500 sheet universal cassette does not match the installed paper, the wrong size media is loaded into the cassette. * If the error persists, contact your dealer or HP Service Technician 41.2 Error 51 Error All Indicates a Beam Detect error. If this error occurs, press the Continue key and the printer will repeat the page. If the printer cannot correct the error after two seconds, a Beam Detect '51 Error' will occur. Replace the toner cartridge and retest the printer. If the printer was just moved from a cold to a warm environment condensation may have formed inside the printer. Allow the printer to stand for up to 6 hours, until any condensation has dissipated. If the problem persists repair service is required. 42 ERROR HP LaserJet II, IID Printers A communications issue has occurred between the printer and a card installed in the printer's optional interface slot. Press Continue to clear the error message. Make sure the card has been installed and configured correctly. If the problem persists, contact the vendor from whom the card was purchased. A communications issue has occurred between the printer and a card installed in the printer's optional interface slot. Press Continue to clear the error message. Make sure the card has been installed and configured correctly. If the problem persists, contact the vendor from whom the card was purchased. Description/Action Required A communications issue has occurred between the printer and a card installed in the printer's optional interface slot. Press Continue to clear the error message. Make sure the card has been installed and configured correctly. If the

42 Opt Interface

HP LaserJet III, IIID Printers

Error Message 43 ERROR

Printer HP LaserJet II, IID Printers

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problem persists, contact the vendor from whom the card was purchased. 43 Opt Interface HP LaserJet III, IIID Printers A communications issue has occurred between the printer and a card installed in the printer's optional interface slot. Press Continue to clear the error message. Make sure the card has been installed and configured correctly. If the problem persists, contact the vendor from whom the card was purchased. This message will be displayed when the wrong printer language (PCL5 or PostScript, for instance) is being used or a language other than PCL5 or Postscript is being used. By pressing Continue, the printer will continue to receive--but not process--data until a valid language switching sequence is received. The message will go away when a valid language switching sequence is received or a printer reset occurs. Check the software to ensure the correct language was selected.

48 Invalid Job

HP LaserJet IIISi Printers

49 Remove Page

HP LaserJet IIISi, 4Si A sheet of paper was in the Printers manual feed guides when the printer powered on, or a paper tray with a sheet of paper in its manual feed guides was inserted while the printer was powering on. Remove the sheets or the tray until the power cycle is complete. All All Printers: 1. A temporary error has occurred. Turn the printer off for 20 minutes to clear the temporary 50 error. 2. The power is low or unstable (For example: brownout). Locate and verify a stable power source. There is an internal service error. Indicates a possible malfunction in the fusing assembly or power supply. Turn printer off for at least 20 minutes (30 minutes for HP LaserJet IIISi or 4Si Printer) and restart. If this problem persists, call your dealer or HP Service Technician.

50 Service

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51 Error

The printer was unable to detect the laser beam. If the printer was just moved from a cold to warm environment, condensation may have formed inside the printer. Allow the printer to stand up to 6 hours, until any condensation has dissipated. The printer detected a temporary error. Press Continue to resume operation. If the error persists, contact your dealer or HP Service Technician.
HP LaserJet, 6L, 5L, 6P, 5P, 4P, 4L Printers
A temporary error has occurred. Power cycle the printer. The laser scanner assembly is not seated. The laser scanner assembly is defective. Replace the laser scanner assembly ( or cable on the 5L only).
HP LaserJet, 5, 4Plus,4 Printers
The laser scanner cable connectors are faulty. The laser scanner assembly is defective.

HP LaserJet, 4V Printer

There is a problem with the fiber optic cable. The laser scanner assembly is defective.
HP LaserJet, 4Si, IIISi Printers
The toner cartridge is defective. There is a problem with the fiber optic cable. The connectors are faulty. The DC voltage is poor. The laser scanner assembly is defective.
HP LaserJet, IIIP, IIP The toner cartridge is improperly Plus, IIP Printers seated. The laser shutter operation is functioning improperly. The fiber optic cable is damaged.

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The laser PCA is bad. 51 Error HP LaserJet, IIID,III, The Toner cartridge is defective. IID, II Printers There is a bad cable in the laser scanner to the DC controller. The fiber optic cable has cuts or kinks. The laser scanner assembly is defective. 51 Error HP LaserJet, 2686D/A Printer The laser or laser power setting is defective. The scanner is defective. 52 Error All A temporary error has occurred. Power cycle the printer. On some models pressing the Continue button on the control panel will resume operation. If the error persists, it could indicate an issue with the scanning assembly. Contact your dealer or HP Service Technician. Indicates an internal service malfunction. Press Continue to resume operation. Some data loss may occur. If the error persists, consult service. Description/Action Required An error was detected on the optional memory board in the indicated slot. Verify that the correct revision level of memory is installed in the printer. An error was detected on the optional memory board in the indicated slot. Verify that the correct revision level and memory part # has been installed in the printer. On the HP LaserJet IIP+, and IIIP Printers, Unit 1 and Unit 2 refer to the top and bottom slots, respectively. An error was detected on the optional memory board in the indicated slot. Verify that the correct revision level of memory is installed in the printer. On HP LaserJet III and HP LaserJet IIID printers, 53-1 and 53-2 refer to the front (right) and rear (left) slots,

HP LaserJet 4P, 4MP Printer
The Printer encountered a parity error when accessing the RAM memory SIMM in slot "X". If X=0, the faulty SIMM slot could not be determined. 0: Internal Memory 1-3: SIMM Slot 4: Cartridge
63 Service 63.5 Service 63 Needs Service

HP LaserJet printers

The printer identified a problem while checking its internal RAM. Remove any expanded memory boards and reboot printer. If message persists, consult service. If message clears, then the problem exists with the expanded memory. Indicates a possible faulty

63.1 Error

HP LaserJet IIISi

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63.2 Error 63.3 Error 63.4 Error

printer

expansion SIMM. The printer will still print, but will only be able to use the expansion memory below the faulty SIMM. Turn the printer off and verify the SIMM is installed correctly and turn the printer back on. If the error continues, turn the printer off and remove the SIMM. If the message clears, the problem is on the SIMM. If the message appears, consult service (for example, the problem is in the base printer memory or SIMM socket.) The printer identified an internal service error. Switch the printer Off, then back On. If the error appears again, repair service is required. The printer identified an internal service error. Switch the printer Off, then back On. If the error appears again, repair service is required. This is a recoverable NVRAM (non volatile random access memory) error. Press Continue to clear the error. Check the Front Panel settings to see if any were set back to factory default settings. If error persists service is required. The printer has detected a non-volatile RAM failure. The printer can be operated until service repairs are made. All control panel settings return to factory default and the OO Ready message will read 68 Ready/Service until serviced. Indicates an optional I/O interface error. The printer has found a problem on the optional interface card. Turn the printer off and verify the optional interface card is installed correctly. Turn printer on and verify the optional interface card is configured correctly. If error persists, contact the I/O card manufacturer or consult service.

64 Service

HP LaserJet 4, 4M, 4Plus, 4Mplus, 4P, 4MP printers

68 Cold Reset

HP LaserJet IIISi printers

68 Error

HP LaserJet IIP, IIP+, III, IIID, IIISi, 4, 4M, 4Plus, 4Mplus, 4Si, 4Si MX, 4P, 4MP printers

68 Service

69 Service
HP LaserJet II, IID, III, IIID printer

70 Error

HP LaserJet II, IID, Indicates an incompatibility IIP, IIP Plus, II, IIID, between the printer and the IIIP, 4Si printers installed font cartridge. Turn the printer off and then back on. If message persists, verify with the cartridge manufacturer the installed cartridge was designed for use with that model printer.

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71 Error
HP LaserJet II, IID, IIP, IIP Plus, IIID, IIIP printers
Indicates an incompatibility between the printer and the installed font cartridge. Turn the printer off and then back on. If message persists, verify with the cartridge manufacturer the installed cartridge was designed for use with that model printer.
HP LaserJet IIISi, 4Si An attempt was made to use a printer "personality" firmware cartridge. Personality cartridges are not supported on the HP LaserJet IIISi or HP LaserJet printers. 72 Service LaserJet II, IID, IIP, A font cartridge was removed from IIP+, III, IIID, IIIP the printer too quickly after it was printers inserted, the font cartridge is bad, or the connectors in the printer's cartridge slot have been damaged. Power the printer Off, re-insert the cartridge, then power the printer On. If the problem persists, the cartridge or the printer may need repair. HP LaserJet IIISi, 4Si, 4Si MX Printers A font cartridge was removed while the printer was trying to access it. This causes a misread by the printer and generates the code. Turn the printer off and back on to resume operation. Indicates an unexpected firmware error was encountered. Document the error message. The numeric code displayed indicates a specific error for service personnel. Error 79 can also be caused by incorrect memory addressing to a font cartridge or memory card. Remove any installed font or personality cartridges (or memory expansion cards). Turn the printer back on. If the message persists, consult service. This can also be software related. Ensure that the error is occurring consistently before servicing the printer. A defective toner cartridge can also cause this problem (4Plus only). Incompatibilities between the printer and software. Check memory indicated in the software and verify it is what is in the printer. Description/Action Required

72 Service

79 Service XXXX
HP LaserJet II, IID, IIP, IIP Plus, IIIP, IIID, IIISi, 4, 4M, 4Plus, 4Mplus, 4Si, 4Si MX, 4P, 4MP printers

79 01bb

HP LaserJet IIP Plus printer

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80 Service XXXX
HP LaserJet IIISi, 4, 4M, 4Plus, 4MPLus, 4Si printers
A modular I/O interface error occurred. Document the error code, the numbers displayed indicate a specific error for service personnel. Turn the printer off and back on. If the error persists, consult service. The printer detected a problem with an internal controller. The numbers following the message indicate the specific type of error. Press SHIFT and Continue to acknowledge the error. The printer will operate normally. Contact your dealer or HP Service representative regarding the occurrence of this error. A PostScript internal controller error occurred. Document the error message. Turn the printer off and back on. If message persists, consult service.

81 Service XXXX

HP LaserJet 4, 4M, 4Plus, 4Mplus printers

89 Service

HP LaserJet IIISi Printer
Clearable Warning Messages
HP LaserJet 4, 4M, A "clearable warning" appears 4SI, 4Si MX, 4P, 4MP when the printer receives a print printers command that requires an option to be installed (such as additional memory or a PostScript SIMM). Depending on the situation, the printer will automatically reduce resolution, lower the level of page protection, compress the data, or abort the print job. The printer first attempts to satisfy the print request by reducing resolution, then by lowering the level of page protection, then by compressing the data if possible. If it receives a job for an uninstalled personality (such as PostScript) or requires more memory than is available, the job is aborted. Clear message by pressing SHIFT and Continue on the printer.

W1 Image Adapt

HP LaserJet 4, 4M, 4Plus, 4Mplus, 4Si, 4P printers
The printer received a graphics print file that was too complex to print at the requested resolution. The printer automatically processes 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. Clear message by pressing SHIFT and Continue on the printer. The job was not printed because

W2 Invalid Pers

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4Plus, 4Mplus, 4Si, 4P, 4MP Printers
the requested personality, such as PostScript (MP), was not installed. Install the language in which the files are sent, together with enough memory to support that language. Clear message by pressing SHIFT and Continue on the printer. The printer was forced to abort the print job because there was not enough memory to support the printer language used. Add more memory. Clear message by pressing SHIFT and Continue on the printer. The job was printed at 300 dpi with page protection off. To print the job as requested, install additional memory. Clear message by pressing SHIFT and Continue on the printer. The job was printed at 300 dpi with page protection off. To print the job as requested, install additional memory. Clear message by pressing SHIFT and Continue on the printer. The job was printed at 300 dpi with page protection set to letter. To print the job as requested, install additional memory. Clear message by pressing SHIFT and Continue on the printer. The job was printed at 300 dpi with page protection set to A4. To print the job as requested, install additional memory. Clear message by pressing SHIFT and Continue on the printer. The job was printed at 300 dpi with page protection set to legal. To print the job as requested, install additional memory. Clear message by pressing SHIFT and Continue on the printer. The job was printed at 600 dpi with page protection off. To print the job as requested, install additional memory. Clear message by pressing SHIFT and Continue on the printer. The job was printed at 600 dpi with page protection set to letter. To print the job as requested, install additional memory. Clear message by pressing SHIFT and Continue on the printer.

W3 Job Aborted

HP LaserJet 4, 4M, 4Plus, 4Mplus, 4Si, 4P , 4MP printers

W4 Job 300/Off

HP LaserJet 4, 4M, 4Si, 4P Printers

W5 Job 300/Ltr

HP LaserJet 4, 4M, 4Si, 4P printers

W6 Job 300/A4

W7 Job 300/Lgl

W8 Job 600/Off

HP LaserJet 4, 4M, 4Si, 4P printer

W9 Job 600/Ltr

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W0 Job 600/A4

The job was printed at 600 dpi with page protection set to A4. To print the job as requested, install additional memory. Clear message by pressing SHIFT and Continue on the printer. The job was printed at 300 dpi. Note: If this message occurs frequently, install additional memory. Clear message by pressing SHIFT and Continue on the printer. 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 a memory SIMM was removed or a new personality SIMM was added Because of these configuration changes, resource saving or I/O buffering is no longer available. If these options are desired, print a Self-Test page. Check the configuration settings, then reconfigure them. To reflect any changes made to the printer. * This message can also occur if the optional duplex unit has been added to the HP LaserJet 4Plus, 4Mplus printer.

WM Job 300

WM Mem Cnfig N/A
HP LaserJet 4Plus, 4Mplus, 4Si, 4Si MX printers

WM Chk Mem Cnfig

HP LaserJet 4Plus, 4Mplus printers
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. (Check settings by printing a self-test.) There is still sufficient memory to accommodate resource saving, but the current setting cannot be satisfied by the available memory. Reconfigure the resource saving for the current personality. The Resource saving memory area for the specified personality is full. Press SHIFT and 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.

Wm Check Mem Mgt

HP LaserJet 4Si, 4Si MX printer
WM [personality] Mem Full

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