[Continue]

[+] or -]
[+] or [-] allows you to step (by momentarily pressing the key) or scroll (by holding down the key) through the item choices for a specific menu. [Shift] [+] (or [-]) allows you to cycle through the item choices in reverse order.

3-4 Configuration

Reset Menu
Use Reset Menu function with caution. It can result in loss of buffered page data or printer configuration data. Reset Menu is activated by holding down both [Shift] and [Menu] for up to 10 seconds until RESET=MENU* appears. Use [+] or [-] to cycle through items and [Enter] to select the item. The reset is executed by pressing [On Line].

Table 3-2

[Reset] (and Menu of Resets)

Reset Menu Functions

A reset ([Shift] + [Menu]) displays a 07 RESET, clears the printers page buffer, removes all temporary typefaces and macros, and makes the current user-established defaults permanent. They will be the default values until they are changed by the user. To access the Menu of Resets, hold down both [Shift] and [Menu] for about 10 seconds until RESET=MENU* appears in the display panel. Use [-] to cycle through the display choices, and [Enter] to select the option. Execute the reset by pressing [On Line]. The printer responds with a reset message for the choice selected.
The three RESET= choices are:
MENU* clears the page buffer, removes all temporary personality data such as downloaded typefaces, and resets all printing environment parameters (such as number of copies, paper size, etc.), and sets user-selected defaults (such as MP tray default configuration) to their factory defaults. Certain items, such as the display language or I/O configuration, are not reset. RESET=MENU clears only the active I/O input buffer. ACTIVE I/O clears the page buffer, removes all perishable personality data such as temporary typefaces, and clears the input and output buffers for the active I/O only. ALL I/O clears the page buffer, removes all perishable personality data such as temporary typefaces, and clears the input and output buffers for all I/Os.
* indicates factory default.

Configuration 3-5

Control Panel Menus
Figure 3-2 shows the menus and menu items available with the basic printer configuration. Not all menu items are discussed in this section. Only those items of specific interest from a service standpoint, or items new to the printers are discussed in this section. If options such as PostScript or a different I/O are installed, new menu items automatically are added at the appropriate location. For example, a PostScript Menu appears following the PCL Menu.

3-6 Configuration

Figure 3-2

Control Panel Map

Configuration 3-7

Table 3-3 Item

COPIES PAPER
Printer Menu Items Options

Solenoid

SL1 SL2
Paper Control PCA (J704) Paper Control PCA (J702)
Lower Cassette (J853) located in Lower Cassette Drive Assembly. See Chapter 8 for location.

Figure 5-3

Printer Solenoid and Photosensor Locations

Functional Overview 5-5

Photosensors
Photosensors, monitored by the DC Controller, are responsible for detecting the presence of paper, paper motion, and timing. (See Table 5-2.) Photosensor PS2 senses paper in the PC tray; photosensor PS4 senses paper in the MP tray. The message PC LOAD or MP LOAD is displayed when either the PC tray or the MP tray is selected as the primary tray and is out of paper. PS6 and PS7 (respectively) sense the presence of paper in the Lower Cassette and the Envelope Feeder. Paper must be loaded into the primary paper tray before printing can resume. The message PC EMPTY or MP EMPTY is displayed when either the PC tray or the MP tray is out of paper and is not selected as the primary paper tray. LC EMPTY or EE EMPTY is displayed when the Lower Cassette or the Envelope Feeder is empty. The EMPTY message is only a reminder that the paper tray is empty; it is not necessary to load paper to continue printing from another tray. The Paper Control PCA, Lower Cassette Assembly, and the Envelope Feeder communicate with the DC Controller through serial data lines. The condition of the printer engine photosensors PS2, PS4, PS5, the optional Lower Cassette PS6, and the optional Envelope Feeder PS7 is encoded into a digital logic stream and read by the DC Controller on line SLI. PS1 detects paper at the Input Feed Roller and is used in jam detection and registration. PS3 detects the presence of paper in the Fuser Assembly, and is used in jam detection. PS5 terminates laser operation when it detects the end of the sheet. This allows the printer to print images on odd-sized media fed from the MP tray without contaminating the Transfer Roller. Note The LaserJet 5 printer uses different tray designators and associated messages as follows. LJ 4 / 4 Plus MP Tray PC Tray LC Tray MP/PC/LC LOAD MP/PC/LC EMPTY Tray 1 Tray 2 Tray 3 TRAY x LOAD (x=1,2, or 3) TRAY x EMPTY (x=1,2, or 3) LJ 5

Transferring Stage
At the transferring station, the toner image on the drums surface is transferred to the paper. A positive charge applied to the back of the paper by the transfer roller causes the negatively charged toner on the drums surface to be attracted to the page. The small radius of the drum and the stiffness of the paper peel the paper away from the drum. The static charge eliminator also helps separate the paper from the drum. The static charge eliminator weakens the attractive forces between the negatively charged drum surface and the positively charged paper. Without this help, thin paper can wrap around the drum. After separation, the paper moves to the fusing station and the drum rotates to the cleaning and conditioning stations.

Figure 5-14

Transfer of the Toner Image and Paper Separation

5-24 Functional Overview

Fusing Stage
At the fusing station, the toner is fused into the paper by heat and pressure to produce a permanent image. The paper passes between a heated fusing roller and a soft pressure roller. This melts the toner and presses it into the paper. To keep the toner or paper from sticking, the upper fusing roller is covered with a non-stick, Teflon-type sleeve. The fusing roller contains an halogen quartz lamp that provides heat for the fusing process. The fusing roller temperature is monitored by the DC Controller PCA, using a thermistor (TH1). The DC Controller maintains a temperature of about 172 C during standby mode and 183 C during print mode. If the fusing system overheats (exceeds 230 C), a thermoswitch opens the power circuit to the fusing heat lamp, and a 50 SERVICE message is displayed.

Figure 5-15

Fusing the Toner to the Paper

Functional Overview 5-25

Paper Feed System

LJ 4 / 4 Plus LJ 5

The LJ 5 printer designators differ as follows.
Multipurpose (MP) Tray Tray 1 Paper Cassette (PC) Tray Tray 2 Lower Cassette (LC) Tray Tray 3
The following paper paths are described in this section of the manual:
PC Tray (Tray 2) to Output Trays MP Tray (Tray 1) to Output Trays
The paper feed system is responsible for picking paper from either the PC tray (Tray 2) or MP tray (Tray 1) and delivering it to the image formation system, feeding it into the fusing station, and delivering the paper to the output tray (see Figure 5-16). The Paper Feed Assembly is a modular, replaceable paper-feeder mechanism which allows media to be input from either of four sources. The four paper input sources of the printer are:
The MP Tray (Tray 1) The PC Tray (Tray 2) The Lower Cassette (Tray 3) The Envelope Feeder

LaserJet 4 Formatter PCA:
1 Remove any MIO or SIMM modules from the Formatter

Assembly.

2 Remove the (2) black screws from the side of the Formatter
Cage (see Figure 6-25a, callout 1).
3 Remove the MIO Connector Support Bracket (see Figure

6-25a, callout 2).

4 Remove the (2) Formatter PCA mounting screws (see

Figure 6-25a callout 3).

Figure 6-25a
Formatter Cover and PCA Mounting Screws (LaserJet 4)
6-30 Removal and Replacement
5 Remove the (4) Interface Connector Support Screws from the
rear of the Formatter Cover. The RS-232 connector is held with 5mm hex-head cap screws (see Figure 6-25b, callout 1). The parallel connector (see Figure 6-25b, callout 2.) is held in place with Phillips screws. 6 Remove the Formatter PCA.

Figure 6-25b

Interface Connector Support Screws (LaserJet 4)
When replacing the Formatter Assembly be sure to reinstall all SIMM modules and MIO cards. Be sure to reset the page count and the Cold Reset paper size after replacing the Formatter.
Removal and Replacement 6-31
LaserJet 4 Plus and 5 Formatter PCA
2 Remove the MIO Connector Support Bracket (see
Figure 6-25a, callout 2).
3 Remove the (4) I/O screws (see Figure 6-26 callout 1). 4 Remove the (2) Formatter PCA mounting screws (see

Figure 6-26 callout 2).

Figure 1-26
Interface Connector Support Screws (LaserJet 4 Plus and 5)
When replacing the Formatter Assembly be sure to re-install all SIMM modules and MIO cards. Be sure to reset the page count and the Cold Reset paper size after replacing the Formatter.
6-32 Removal and Replacement

DC Controller Removal

Figure 1-27a Note
DC Controller Connectors/Retaining Clips (LaserJet 4) Note the cable routing before beginning this disassembly procedure. Be careful not to damage the cables during re-assembly.
Remove the Right Side and the Top Cover Assemblies. Remove the Formatter Cage Assembly. Remove the 6-wire connector from the Power Supply. Remove the plastic DC Controller cover (LaserJet 4 Plus). Remove the DC Controller connectors (see Figure 6-27a or 6-27b, callout 1). 6 Release the DC Controller from its retaining clips (2) and remove the DC Controller (see Figure 6-27a or 6-27b, callout 2).
6-33 Removal and Replacement

Figure 1-27b

DC Controller Connectors/Retaining Clips (LaserJet 4 Plus/5)
6-34 Removal and Replacement
DC Controller Installation Caution When reinstalling the DC Controller PCA it is extremely important that all cables be properly routed. If cables are not routed properly, it is difficult to reinstall the Formatter Cage and cable damage may result.

Fan Connector

Note the cable routing before beginning this disassembly procedure. Be careful not to damage the cables during re-assembly.
1 Remove the Right Side Cover, the Top Cover, and the

Formatter Cage Assembly.

2 Unplug the fan connector (J209 on the LaserJet 4, J211 on the
LaserJet 4+/5). (See Figure 6-32, callout 1.) (continued on next page)
6-39 Removal and Replacement

Figure 1-33

Exhaust Fan Removal (Laser Jet 4 shown)
3 Remove the RFI shield (LJ 4 only) by releasing the retaining
tab and sliding the shield up (see Figure 6-33, callout 1).
4 Laser Jet 4: Release the (4) clips from the fan ducting to
provide clearance and remove the fan from the top of the printer (see Figure 6-33, callout 2). Laser Jet 4 Plus/5: Remove (1) screw on the right-rear and release the tabs on the lower left adjacent to the Output Paper Assembly 5 Remove the fan. Note When reinstalling the fan, verify that the air is blowing upward.
6-40 Removal and Replacement

Output Assembly Removal

Figure 1-34 Side Cover.
1 Remove the Right Side Cover, the Top Cover, and the Left 2 Release the grounding strap from the left side of the frame. 3 Rotate the top of the Output Assembly toward the front of the
printer while releasing the two retaining latches (see Figure 6-34, callout 1) until the locating tabs are free. Slide the assembly to the rear and lift it out of the printer.
6-41 Removal and Replacement
Paper Exit Sensor (PS3) Removal

Figure 1-35

Exit Sensor
1 Remove the Right Cover, Top Cover, and the Output Assembly. 2 Disconnect the Sensor Cable. 3 Lift the Sensor Retaining Latch and slide the sensor forward

(see Figure 6-35).

4 Remove the Paper Exit Sensor.
6-42 Removal and Replacement

Scanner Assembly Removal

Figure 1-36
1 Remove the Right Side Cover, Top Cover, Left Side Cover, and

the Output Assembly.

2 Remove all cables from the Scanner retaining clips. 3 Remove the (3) connectors (see Figure 6-36, callout 2).
Be careful not to flex the Laser PCA when removing or installing the cables. The Laser PCA can be damaged easily.
4 Remove the (4) screws from the Scanner Assembly. (see

6-52 Removal and Replacement

Figure 1-44 Note

Gear Side Heat Lamp Connector LaserJet 4 and 5 only: Note the orientation of the bushing on the left side of the Fusing Roller.
8 Squeeze the lamp connector to release the slip-on connector
locking tab from the right side of the heat lamp (see Figure 6-44, callout 1). (continued on next page)
6-53 Removal and Replacement

Figure 1-45 Note

Fuser Gear Cap Removal Before removing the gear cover, note the routing of the wires in the gear cover slots.
9 Remove the (2) screws from the right side gear cover (see
Figure 6-45, callouts 1 and 2). Note the wavy washer on the (1) screw (callout 1) touching the copper contact. Remove the cover. 10 Remove the Heat Lamp (see Figure 6-45, callout 3), from the roller. Pull the lamp out the side of the assembly.
6-54 Removal and Replacement
Fuser Assembly Thermoswitch Removal Note Six of the seven latches are accessed from the top of the wire cover. These latches are beneath the felt pad. The slot on the front left side of the wire harness cover is the best place to begin removing the cover.
1 Remove the Wire Harness Cover as shown in Figure 6-42a
(LaserJet 4) or Figure 6-42b and c (LaserJet 4 Plus).
2 Remove the (2) screws from the Thermoswitch connector (see

Figure 6-46, callout 1).

3 Release the thermoswitch latch from the paper sensor flag
side of the Fuser Assembly (behind the side cover). (See Figure 6-46, callout 2). 4 Slide the Thermoswitch to the gear side of the fuser and release it from the fuser frame (callout 3).

Figure 1-46

Fuser Thermoswitch Connectors
6-55 Removal and Replacement

Thermistor Removal

Figure 1-47

Thermistor Connector

1 Remove the Wire Harness Cover as shown in Figure 6-47. 2 Remove the (2) screws from the thermoswitch connector (see

Figure 6-47, callout 1).

side of the Fuser Assembly (behind the side cover, see Figure 6-47, callout 2). 4 Slide the thermoswitch to the gear side of the fuser and release it from the fuser frame (callout 3). Note When installing the thermoswitch, make sure the sensing surface contacts the fusing roller uniformly. If it does not, straighten the leaf spring.
6-56 Removal and Replacement

Figure 1-48a

See 07 RESET See 12 PRINTER OPEN See 04 SELF TEST The received data is waiting for a form feed. (Takes the place of the Form Feed indicator on the LJ4.) See 15 ENGINE TEST See 09 MENU RESET Indicates that an envelope feeder has been installed that is not compatible with the LJ5. Press GO to clear the error. The feeder will not appear in any control panel or PJL messages.

Message on LJ 5/5M/5N

CLEARING MEMORY CLOSE PRINTER COVER CONTINUOUS TEST, PRESS JOB CANCEL KEY DATA RECEIVED
ENGINE TEST FACTORY DEFAULTS BEING RESTORED INCOMPATIBLE ENVELOPE FEEDER INSTALLED

LaserJet 5 Error Map 7-A

INCOMPATIBLE TRAY 3 INSTALLED

Recommendations

Indicates that a lower cassette has been installed that is not compatible with the LJ5. Press GO to clear the error. The tray will not appear in any control panel or PJL messages. See 05 SELF TEST See 14 EP CART See PC INSTALL See W3 JOB ABORTED See W4/7 JOB 300/[page protect size] See ME FEED [envelope size] See MF FEED [paper size] See W1 IMAGE ADAPT See WM MEM CNFIG N/A or WM CHK MEM CNFIG See 00 OFFLINE See WM [Personality] MEM FULL
INITIALIZING (powerup only) INSTALL TONER CARTRIDGE INSTALL TRAY 2 INSUFFICIENT MEMORY, JOB CLEARED INSUFFICIENT MEMORY, PRINTING AT 300 DPI MANUALLY FEED [envelope size] MANUALLY FEED [paper size] MEMORY LOW, PAGE SIMPLIFIED MEMORY SETTINGS CHANGED OFFLINE [personality] MEMORY FULL, STORED DATA LOST PLEASE WAIT
This message is displayed whenever the device is in the process of flushing the pipeline so it can go offline or into the menus. (Takes the place of the flashing Online indicator.) See 00 POWERSAVE See 05 SELF TEST / 06 PRINTING TEST See 06 DEMO PAGE This message is displayed while a flash file system page is being formatted and printed. Upon successful completion, the device returns to an online and ready state. See 06 TYPEFACE LIST This message is displayed whenever the device is actively processing a users job. (Takes the place of the flashing Ready indicator.) See 00 READY See 13 DUPLEX JAM

ME FEED [envelope size] MANUALLY FEED [envelope size] MF FEED [paper size] MANUALLY FEED [paper size] PC INSTALL INSTALL TRAY 2
xx LOAD [paper size or envelope size] TRAY x LOAD [size] ENVELOPE FEEDER [envelope size]

Troubleshooting 7-9

Clearable Warnings
A clearable warning indicates a transient condition in the printer. The printer continues on line while the message is displayed in place of 00 READY. A clearable warning appears each time the printer alters resolution or page protection (this causes reconfiguration of memory), or aborts a job due to an invalid or uninstalled personality, or insufficient memory. Clear the message by pressing [Shift] + [Continue] (or Go for the LaserJet 5).

7-10 Troubleshooting

Table 7-2
Clearable Warning Messages
Meaning 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. 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. The printer was forced to abort the print job because there was not enough installed memory to support the printer language used. 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. 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. 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. 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.) 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.

Reseat the DC Controller and Formatter PCA connections.
See Figures 7-11 through 7-17 for connector locations.

7-28 Troubleshooting

50 SERVICE Error - Fuser Malfunction
Warning The Fuser Assembly is HOT. Allow the assembly time to cool before servicing.
The purpose of the fusing system is to maintain a constant temperature on the fuser roller. A high intensity fusing lamp, located inside the fuser roller, provides the high temperature required for the fusing process. While the printer is in standby mode, a temperature of approximately 172 C is maintained on the fuser roller. While the printer is in printing mode, a temperature of around 183 C is maintained. The main components of the Fuser Assembly are the fusing lamp and its associated fusing and pressure rollers, a thermistor, thermoprotector, and the AC controller/safety circuitry in the AC Power Supply. The fusing lamp is a specially designed 460 watt (220V), or 500 watt (115V) halogen lamp that operates at line voltage. The thermistor is a resistor whose value changes with temperature. At room temperature the resistance value of the thermistor should be between 180k ohms and 280k ohms.The thermoprotector is a switch designed for over-temperature protection, and opens when the temperature reaches 230 C. The thermoprotector will not reset when the fuser cools. It may be necessary to replace the thermoprotector or fuser assembly if the thermoprotector opens. The following conditions result in a fusing error:
1 Unable to maintain a temperature above approximately

180 C.

2 A temperature above 230 C. 3 A condition wherein a temperature of 165 C is NOT reached
within 90 seconds after power-up. Note 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.

Troubleshooting 7-29

Table 7-10
50 SERVICE Fuser Malfunction Checks Checks Action
Reseat the Fuser Assembly. Allow adequate time for the error message to clear (10 minutes) and turn the printer ON. The fuser bulb and thermoswitch are wired in series. To check if one or the other is defective, perform the following: 1. Remove the Fuser Assembly from the printer. 2. Use an ohmmeter and measure the continuity between pins (see Figure 7-6, callout 1). It should read about 2 ohms (about 4 ohms for the 220 volt fuser). If an open condition is detected, either the fusing bulb or the thermoswitch is defective. Replace the defective component (refer to Chapter 6) or replace the complete Fuser Assembly.
Is the Fuser Assembly correctly seated?

Part # RB1-3517-030CN RF5-0438-000CN RF5-1077-030CN RB1-2127-000CN RB1-2205-000CN RB1-2126-000CN RB1-2632-000CN RB1-2650-000CN RB1-3477-000CN RB1-7911-000CN RB1-7983-000CN RF5-0349-000CN RB1-2263-000CN RB1-3516-020CN RF5-0534-000CN RF5-1076-020CN RB1-2299-030CN XA9-0585-000CN XA9-0668-000CN XA9-0591-000CN XA9-0574-000CN XA9-0678-000CN XB6-7300-409CN XB6-7300-409CN XA9-0617-000CN XA9-0670-000CN XA9-0702-000CN XB2-8300-607CN XA9-0591-000CN RS5-9055-000CN
Fig. # 8-10 8-8 8-8 8-6b 8-6b 8-6b 8-12 8-12 8-6b 8-6b 8-12 8-4d 8-10 8-10 8-8
Printer 4+/4+/5 4/4+ 4 4+ 4+ 4/4+/4+/5 4/4+ 5
8-8 8-4b 8-4b 8-3a 8-4c 8-10 8-10 8-4c 8-4c 8-4c 8-10 8-10 8-11 8-10 8-10
4/4+/5 4/4+/5 4+/5 4/4+ 4/4+/5 4+/4+/5 4+/4/4+/5 4/4+/5 4+/5 4/4+/5

RF5-0716-000CN

8-54 Parts and Diagrams
Description Screw, w/Spring Washer Screw, w/Spring Washer Screw, w/Washer, 2 ea Screw, w/Washer, 4 ea. Sensor PCA Shaft Sheet Sheet Shield, Font Cover Shield, Font Cover Shield, Font Cover Shutter Spring, Torsion Shutter, Arm Shutter, Laser Spring, Compression Spring, Compression Spring, Compression Spring, Compression, 4 ea. Spring, Compression, 4 ea. Spring, Guide Spring, Leaf Spring, Leaf Spring, Left Cartridge Guide Spring, Roller, 4 ea. Spring, Switch Spring, Switch Spring, Tension Spring, Tension (Qty. 2) Spring, Torsion Static Eliminator Stop, Hinge
Part # XA9-0584-000CN XA9-0670-000CN XA9-0267-000CN FA9-1449-000CN RG5-0514-000CN RF5-0375-000CN RB1-2312-000CN RB1-2313-000CN RB1-2366-000CN RB1-3496-000CN RB1-7898-000CN RB1-2122-000CN RB1-2111-030CN RB1-2080-000CN RS5-2168-000CN RS5-2218-000CN RS5-2265-020CN RS5-2185-000CN RS5-2267-000CN RB1-2286-000CN RB1-2330-000CN RB1-7893-000CN RB1-5731-000CN RB1-2302-000CN RB1-2358-000CN RB1-2966-000CN RS5-2180-000CN RS5-2170-000CN RB1-5732-000CN RB1-2237-020CN RB1-2314-000CN
Fig. # 8-4c 8-4c 8-4b 8-4b 8-6b 8-11 8-4c 8-4c 8-4c 8-4c 8-4c 8-4a 8-4a 8-4a 8-10 8-4a 8-10 8-8 8-8 8-10 8-3a 8-3b 8-4a 8-8 8-4a 8-4a 8-10 8-4a 8-4a 8-4a 8-3a
Printer 4 4+/5 4+/4/4+/5 4/4+/5 4/4+/5 4/4+/4+ 5 4/4+/5 4/4+/5 4/4+/4/4+/5 4+/4+/5 4/4+/5 4/4+ 4/4+/5 4/4+ 5 4/4+/5 4/4+/5 4/4+/5 4/4+/5 4/4+

Parts and Diagrams 8-55

Description Support, Cartridge Switch Switch Thermistor Thermistor Thermoswitch Assembly Thermoswitch Assembly Toner Cartridge Tool, hook Top Cover Door Top Cover Door Top Cover Door Transfer Block Assembly Transfer Block Assembly Transfer Guide Assembly Transfer Guide Assembly Upper Cover Assembly Upper Cover Assembly Upper Cover Assembly Upper Frame Upper Guide, Delivery Upper Guide, Delivery Washer, Grounding Washer, Grounding Weight

NONE 3 2, 1 3, 1 3, 2

No trays locked out Tray 1 is locked out. Tray 2 is locked out. Tray 3 is locked out. Only Tray 3 is available Only Tray 2 is available. Only Tray 1 is available.
ENV FEED COM 10* DL Monarch C5 B5 CLR WARN ON*
Only appears if the optional envelope feeder is installed in the printer. Used to designate the envelope size.
Determines how long a clearable warning will be displayed on the control panel. When set to ON, the warning is displayed until the Go key is pushed. If set to JOB, the warning will be displayed until the end of the print job in which it was generated.
* Indicates factory default. LaserJet 5/5M/5N Printer B-19

Item AUTO CONT OFF*

Explanation Determines how the printer reacts to data errors and printer errors. When auto continue is set to OFF, the printer displays an error message and goes off line until you press Go. When auto continue is set to ON, the printer displays a message and goes off line for about 10 seconds, then comes back on line. If your printer is part of a network or remote spooling system, set auto continue to ON.

TONER DENSITY

3* CONT*
Determines the relative darkness of print on the paper; 1 being the lightest and 5 being the darkest.
If TONER LOW is set to CONT, the printer will remain on line and continue to print while the message is displayed. If TONER LOW is set to STOP, the printer will go off line and wait for further action.
B-20 LaserJet 5/5M/5N Printer
Memory Configuration Menu
Table B-15 Memory Configuration Menu Items

Item I/O BUFFER

Options AUTO* OFF ON
Explanation Memory set aside for I/O buffering is automatically determined by the printer. No memory is set aside for I/O buffers. Size can be manually adjusted. When IO BUFFER is set to ON, this item appears in the menu. Press - Value + to add or reduce I/O buffer memory in increments of 0 KBytes up to 100 KBytes, then in 100 KByte increments. Appears when a certain amount of memory and a personality SIMM are installed in the printer. Enables or disables Resource Saving.

I/O SIZE

RESRCSAVE
AUTO* OFF ON PCL MEM PS MEM 0K and up
Printer automatically determines the amount of memory to allocate to each installed personality. No memory is allocated. Additional memory management item selections appear. Increases memory for each installed personality.
LaserJet 5/5M/5N Printer B-21
Table B-16 Parallel Menu Items

Item HIGH SPEED

Explanation The speed at which data is transmitted to the printer. If the default value (YES) results in I/O errors or no communications, set this value to NO.

B-38 LaserJet 5/5M/5N Printer
If all these elements are properly installed and configured, use the IR test tool to test the IrDA protocol transmission and device operation. This tool for troubleshooting IR communication problems, shown in Figure 10, has been developed by Genoa Technology, Inc., in cooperation with Hewlett-Packard. The part number is 5062-4661 and can be ordered through HP Parts Direct Ordering. The IR test tool can be used with any IrDA-compliant primary or secondary device, regardless of manufacturer.

IR Diodes

Connect Pass

Peripheral Test

Computer Test
Test Modes PCL Printer PostScript Printer Energy Detect Test Frame

itch sw es

Figure B-8

Infrared Test Tool

To test the peripheral device:
1 Put the HP LaserJet 5 in Ready Mode. 2 Press the Peripheral Test button on the test tool. The LEDs
on the test tool will sequence. If the PASS LED lights, the test was successful, indicating that communication with the printers IR port is functioning normally.
LaserJet 5/5M/5N Printer B-39
On HP Laser-Jet printers, a self-test page will be initiated by the test. If the TEST LED goes out and the PASS LED fails to light, the printers IR port is not functioning correctly; check the operators instructions included with the IR test tool. To test the host computer:
1 Place the test tool on a table in front of the PCs IR port. 2 Press the computer Test button. The test tool will sequence
the LEDs. If the PASS LED light, the test was successful, indicating that communication with the printers IR port is functioning normally. If the TEST LED goes out and the PASS LED fails to light, the hosts IR port is not functioning correctly.
B-40 LaserJet 5/5M/5N Printer
Infrared Port Not Responding
Table B-21 Solutions for Infrared Not Responding
Situation The connection cannot be established or the transmission seems to be taking longer than usual.
Solution Make sure the device you are using is IrDA-compliant; look for an IrDA symbol on the device or refer to the manual for the device for IrDA specifications. Make sure that the operating system on your computer includes an IR driver and your application uses a HP LaserJet 5/5M/5N compatible printer driver. Make sure you have positioned the device within the range of operation and that no objects, such as a finger, paper, books, or bright light, are interfering with the connection. Also make sure the two IR ports are clean (free from dirt and grease.) Bright light of any kind (sunlight, incandescent light, fluorescent light, or light from an infrared remote control, such as those used for TVs and VCRs) shining directly into one of the IR ports may cause interference. Position the device closer to the printers IR pod.

Index-1

defect Ruler 7-67 defect template 7-67 developing station, drum 5-22 DHHS laser safety 1-8 Diagnostics B-28 diagrams, timing 5-34 disassembly, fuser 6-47 display language, changing 3-28, B-30 distorted print 7-35, 7-42 documentation, related 1-7, B-8 DOS commands serial 7-53 DOS Utilities 3-42 Drum cleaning station 5-18 conditioning station 5-19 developing station 5-22 photosensitive 5-17 Rotation Check 7-50 sensitivity 5-17 transferring station 5-24 writing station 5-20 dtr polarity 3-34 dtr/dsr 3-34 Duplex components A-14 covers A-9 electrical block diagram A-5 installation A-6 overview A-2 printing A-3 removal and replacement A-8 E EconoMode 3-16, 4-6 ENGINE TEST 7-A envelope feeder 5-4 installation 3-49 envelopes 2-6 error infrared B-41 Error Map for LJ 5 7-A - 7-D Error messages MP/PC/LC LOAD 7-13 troubleshooting 7-2 ESD 6-1 European Customer Support Center (ECSC) 1-14 European formatter installation 3-22 exhaust fan motor 5-10 Explorer 3-33 F FACTORY DEFAULTS 7-A faint print 7-35 faint print 7-38
fan checks 7-34 failure 7-34 motor signals 5-10 removal 6-39 faulty registration 7-39 fax information service (HP FIRST) 1-12 feed guide assembly 6-62 replacing 6-68 Finland laser safety 1-10, B-9 firmware date code 3-26 flash SIMM B-29 flashing indicators 3-2 FM1 7-34 exhaust fan motor 5-10 font door cover 6-10 formatter PCA removal 6-29 pca, functional overview 5-12 system 5-12 formatter cage removal 6-27 formatter system 5-1 functional check half self-test 7-49 laser/scanner assembly 7-32 lower cassette 7-24 main motor 7-33 PS2 7-17 functional overview, formatter 5-12 functional test, pickup motor (m2) 7-23 fuser assembly configuration 6-48 life expectancy 4-2 parts location 6-48 PM 4-3 removal 6-22 thermoswitch removal 6-55 fuser bulb replacement 1-47 fuser disassembly 6-47 fuser malfunction 7-29 fusing process 5-25 station 5-25 temperature 5-2 fusing roller heat lamp removal 6-49 G gear assembly removal 6-38 H half self-test functional check 7-49 handshaking 3-34 hardware 6-2 descriptions 6-3 heat lamp 6-49

Index-2

high voltage contact assembly 6-68 contact plate 6-62 contactor removal 6-62 contactor/paper guide removal 6-62 High Voltage Power Supply assembly 7-51 checks 7-51 removal 6-21 troubleshooting 7-51 high voltage system 5-2 HP ASAP (Automated Support Access Program) 1-12 HP AUDIO TIPS 1-13 HP FIRST (Fax Information Retrieval Support Technology) 1-12 I I/O buffering 3-15 information 3-26 image defect summary 7-35 formation system 5-1, 5-16 formation troubleshooting 7-49 skew 7-35 image skew 7-43 improperly sized image 7-35, 7-44 INCOMPATIBLE ENVELOPE FEEDER 7-A INCOMPATIBLE TRAY 3 7-B indicators 3-2 information, related 1-7, B-8 infrared operation B-37 printing B-36 software B-34 status light B-36 test tool B-39 troubleshooting B-38, B-41 using to print B-36 infrared communication B-34 Infrared, test tool B-38 initial rotation period 5-38 INITIALIZING 7-B input area paper jams 7-20 input feed roller, PM 4-3 Input/Registration Sensor Check 7-22 INSTALL TONE CARTRIDGE 7-B INSTALL TRAY 2 7-B installation DC controller 6-35 installing printer drivers 3-41 SIMM 3-51 the control panel overlay 3-28 the envelope feeder 3-49 the optional lower cassette 3-44

MATERIAL SAFETY DATA SHEET
1. Product and Company Identification
Identification of the preparation Product use Version # Revision date Company identification HP LaserJet 92298A-X Print Cartridge This product is a toner preparation that is used in HP LaserJet 4/4 Plus/4M/4M Plus/5/5M series printers. 05 24-Jun-2010 Hewlett-Packard Company 3000 Hanover Street Palo Alto, CA 94304-1185 United States Telephone 650-857-1501 Hewlett-Packard health effects line (Toll-free within the US) 1-800-457-4209 (Direct) 1-503-494-7199 HP Customer Care Line (Toll-free within the US) 1-800-474-6836 (Direct) 1-208-323-2551 Email: hpcustomer.inquiries@hp.com
2. Hazards Identification
Acute health effects Skin contact Eye contact Inhalation Ingestion Potential health effects Routes of exposure Potential routes of exposure under normal use conditions are skin, eye contact and inhalation. Ingestion is not expected to be a primary route of exposure for this product under normal use conditions. Chronic health effects Carcinogenicity Other information Prolonged inhalation of excessive amounts of any dust may cause lung damage. Use of this product as intended does not result in inhalation of excessive amounts of dust. None of the ingredients have been classified as carcinogens according to EU, IARC, MAK, NTP, OSHA or ACGIH. This product is not classified as hazardous according to OSHA CFR 1910.1200 or EU Directive 1999/45/EC, as amended. This preparation contains no component classified as Persistent, Bioaccumulative, and Toxic (PBT) or very Persistent and very Bioaccumulative (vPvB) as defined under Regulation (EC) 1907/2006. Unlikely to cause skin irritation. May cause transient slight irritation Minimal respiratory tract irritation may occur with exposure to large amounts of toner dust. Low acute toxicity. Ingestion is a minor route of entry for intended use of this product.
3. Composition / Information on Ingredients
Components Iron oxide Styrene acrylate copolymer CAS # 1317-61-9 Trade Secret Percent < 55 < 55

4. First Aid Measures

First aid procedures Eye contact Do not rub eyes. Immediately flush with large amounts of clean, warm water (low pressure) for at least 15 minutes or until particles are removed. If irritation persists, consult a physician.
Material name: 92298A-X 8911 Version #: 05 Revision date: 24-Jun-2010

MSDS US

Print date: 24-Jun-2010
Skin contact Inhalation Ingestion
Wash affected areas thoroughly with mild soap and water. Get medical attention if irritation develops or persists. Move person to fresh air immediately. If irritation persists, consult a physician. Rinse mouth out with water. Drink one to two glasses of water. If symptoms occur, consult a physician.
5. Fire Fighting Measures
Flammable properties Extinguishing media Suitable extinguishing media Unsuitable extinguishing media Protection of firefighters Protective equipment and precautions for firefighters Specific methods Hazardous combustion products Like most organic material in powder form, toner can form explosive dust-air mixtures when finely dispersed in air. CO2, water, or dry chemical None known.
If fire occurs in the printer, treat as an electrical fire.
None established. Carbon monoxide and carbon dioxide.
6. Accidental Release Measures
Personal precautions Environmental precautions Other information Minimize dust generation and accumulation. Do not flush into surface water or sanitary sewer system. See also section 13 Disposal considerations. Slowly vacuum or sweep the material into a bag or other sealed container. Clean remainder with a damp cloth or vacuum cleaner. If a vacuum is used, the motor must be rated as dust explosion-proof. Fine powder can form explosive dust-air mixtures. Dispose of in compliance with federal, state, and local regulations.

7. Handling and Storage

Handling Storage Keep out of the reach of children. Avoid inhalation of dust and contact with skin and eyes. Keep away from excessive heat, sparks, and open flames. Use with adequate ventilation. Keep out of the reach of children. Keep tightly closed and dry. Store away from strong oxidizers. Store at room temperature.

8. Exposure Controls / Personal Protection
Exposure guidelines USA OSHA (TWA/PEL): 15 mg/m3 (Total Dust), 5 mg/m3 (Respirable Fraction) ACGIH (TWA/TLV): 10 mg/m3 (Inhalable Particulate), 3 mg/m3 (Respirable Particulate) Engineering controls Use in a well ventilated area.
Personal protective equipment General No personal respiratory protective equipment required under normal conditions of use.
9. Physical & Chemical Properties
Appearance Color Odor Odor threshold Physical state Form pH Melting point Freezing point Boiling point Fine powder Not available. Slight plastic odor Not available. Liquid solid Not applicable Not available. Not available. Not applicable
Flash point Evaporation rate Flammability limits in air, upper, % by volume Flammability limits in air, lower, % by volume Vapor pressure Vapor density Specific gravity Relative density Solubility (water) Auto-ignition temperature Decomposition temperature Softening point Viscosity VOC Other information
Not applicable Not available. Not available. Not flammable Not applicable Not available. 1.5 (H2O = 1) Not available. Negligible in water. Partially soluble in toluene and xylene. Not applicable Not available. 212 F (100 C) Not applicable Not available. Decomposition temperature: > 200 C
10. Chemical Stability & Reactivity Information
Chemical stability Conditions to avoid Incompatible materials Hazardous decomposition products Possibility of hazardous reactions Stable under normal storage conditions. Imaging Drum: Exposure to light Strong oxidizers Carbon monoxide and carbon dioxide. Will not occur.
11. Toxicological Information
Carcinogenicity Serious eye damage/eye irritation Skin sensitization Chronic toxicity Sensitization Mutagenicity Reproductivity Further information Not a known or suspected carcinogen according to any IARC Monograph, NTP, OSHA Regulations (USA), EU Directive, or Proposition 65 (California). Not classified as irritant, according to OSHA Hazard Communication Standard (HCS) and EU Directive 67/548/EEC and as amended. Not classified as irritant, according to OSHA Hazard Communication Standard (HCS) and EU Directive 67/548/EEC and as amended. No information available. Not classified as a sensitizer according to EU Directive 67/548/EEC and as amended, and OSHA HCS (US). Negative, does not indicate mutagenic potential (Ames Test: Salmonella typhimurium) Not classified as toxic according to EU Directive 67/548/EEC and as amended, California Prop. 65, and DFG (Germany). Complete toxicity data are not available for this specific formulation Refer to Section 2 for potential health effects and Section 4 for first aid measures.

12. Ecological Information
Ecotoxicity Persistence and degradability Other adverse effects LL50: 1000 mg/l, Fish, 96.00 Hours Not available. This product has not been tested for ecological effects.
13. Disposal Considerations
Disposal instructions Do not shred toner cartridge, unless dust-explosion prevention measures are taken. Finely dispersed particles may form explosive mixtures in air. Dispose of in compliance with federal, state, and local regulations. HP's Planet Partners (trademark) supplies recycling program enables simple, convenient recycling of HP original inkjet and LaserJet supplies. For more information and to determine if this service is available in your location, please visit http://www.hp.com/recycle.
14. Transport Information
Further information 13 or more of these cartridges shipped together in a single package (e.g., box, container), by air, are regulated as a magnetized material. These requirements do not apply to single or dual pack cartridges contained in an original HP package and shrink wrapped on a pallet for shipment by air.
DOT Not regulated as dangerous goods. IATA Basic shipping requirements: Proper shipping name UN number IMDG Not regulated as dangerous goods. RID Not regulated as dangerous goods. Magentized Material 2807
15. Regulatory Information
US federal regulations US EPA TSCA Inventory: All chemical substances in this product comply with all rules or orders under TSCA.
CERCLA (Superfund) reportable quantity None Occupational Safety and Health Administration (OSHA) 29 CFR 1910.1200 No hazardous chemical Superfund Amendments and Reauthorization Act of 1986 (SARA) Hazard categories Immediate Hazard - No Delayed Hazard - No Fire Hazard - No Pressure Hazard - No Reactivity Hazard - No Section 302 extremely hazardous substance Section 311 hazardous chemical Regulatory information No No All chemical substances in this HP product have been notified or are exempt from notification under chemical substances notification laws in the following countries: US (TSCA), EU (EINECS/ELINCS), Switzerland, Canada (DSL/NDSL), Australia, Japan, Philippines, South Korea, New Zealand, and China.

16. Other Information

Other information HMIS ratings This MSDS was prepared in accordance with USA OSHA Hazard Communications regulation (29 CFR 1910.1200). Health: 1 Flammability: 1 Physical hazard: 0 Health: 1 Flammability: 1 Instability: 0 This Safety Data Sheet document is provided without charge to customers of Hewlett-Packard Company. Data is the most current known to Hewlett-Packard Company at the time of preparation of this document and is believed to be accurate. It should not be construed as guaranteeing specific properties of the products as described or suitability for a particular application. This document was prepared to the requirements of the jurisdiction specified in Section 1 above and may not meet regulatory requirements in other countries. 24-Jun-2010

NFPA ratings

Disclaimer

Issue date

This data sheet contains changes from the previous version in section(s):
Hazards Identification: Other information 11. Toxicological Information: Further information Ecological Information: Ecotoxicity Transport Information: Agency Name and Packaging Type/Transport Mode Selection 14. Transport Information: Further information Hewlett-Packard Company 11311 Chinden Boulevard Boise, ID 83714 USA (Direct) 1-503-494-7199 (Toll-free within the US) 1-800-457-4209

Manufacturer information

Explanation of abbreviations ACGIH CAS CERCLA CFR COC DOT EPCRA IARC NIOSH NTP OSHA PEL RCRA REC REL SARA STEL TCLP TLV TSCA VOC American Conference of Governmental Industrial Hygienists Chemical Abstracts Service Comprehensive Environmental Response Compensation and Liability Act Code of Federal Regulations Cleveland Open Cup Department of Transportation Emergency Planning and Community Right-to-Know Act (aka SARA) International Agency for Research on Cancer National Institute for Occupational Safety and Health National Toxicology Program Occupational Safety and Health Administration Permissible Exposure Limit Resource Conservation and Recovery Act Recommended Recommended Exposure Limit Superfund Amendments and Reauthorization Act of 1986 Short-Term Exposure Limit Toxicity Characteristics Leaching Procedure Threshold Limit Value Toxic Substances Control Act Volatile Organic Compounds