Site Planning and Requirements 2-5

Overhead Transparencies

Note Printing overhead transparencies using the Duplex Assembly, the 500-sheet Lower Cassette (Tray 3) or PC tray (Tray 2) specifically is not supported.
Overhead transparencies used in HP LaserJet printers must be able to withstand the 392 F (200 C) temperature encountered in the printers fusing process. See the HP LaserJet Family Paper Specifications Guide for more information. Caution Use only overhead transparencies recommended for use in laser printers.

Envelopes

Many kinds of envelopes can be printed with your printer. Some envelope styles perform better than others because their construction is better suited to feeding through a laser printer. Hewlett-Packard Company neither warrants nor recommends the use of a particular brand of envelope. Envelope properties are subject to change by envelope manufacturers, and Hewlett-Packard Company has no control over such changes.
2-6 Site Planning and Requirements

Envelope Construction

The following table lists the kinds of envelopes you can print in the MP Tray (Tray 1). Table 2-5 Specifications for Envelopes Item
Minimum envelope size Maximum envelope size Basis Weight Quantity
3.5 in x 7 in (86 mm x 178 mm) 7.4 in x 10.5 in (188 mm x 267 mm) 16 to 24 pound (60 to 90 g/m2) Maximum 10 envelopes

Envelope Size

Commercial #10 (COM 10) #7 3/4 (Monarch) DL C5 B5

Dimensions

4.1 in x 9.5 in (105 mm x 241 mm) 3.8 in x 7.5 in (98 mm x 191 mm) 109 mm x 218 mm (4.3 in x 8.6 in) 163 mm x 231 mm (6.4 in x 9.1 in) 178 mm x 251 mm (7.0 in x 9.9 in)
See the HP LaserJet Family Paper Specifications Guide for more information.
Site Planning and Requirements 2-7
2-8 Site Planning and Requirements

Configuration

Introduction
The Configuration of the printer consists of setting hard and soft user defaults, and setting up the host computer to communicate with the printer (System Configuration). For installation instructions refer to Installation in the Getting Started Manual that is shipped with the printer. Hard defaults are the I/O Menu and Configuration Menu settings. These are set when the printer is installed and remain as configured. The soft defaults (Printing menu and PCL menu) change with the print job requirements. System Configuration includes installing printer drivers, MODE commands and updating the AUTOEXEC.BAT file. The instructions in this chapter explain how to access the printer features through the control panel, and how to set up the printer in different configurations. This chapter explains how to check the configuration settings, and how to verify that a configuration is correctly selected. Setup and configuration information for accessories is available in this chapter. This information is intended to augment and not replace the information provided with the accessories themselves. If possible, use the information provided with the accessories when installing the accessory products. Use the information that comes with the printer drivers when installing the printer. Many features of the printer are not available without the correct printer driver for the software application.

Replacing the Transfer Roller
The Transfer Roller is the black sponge-rubber roller located inside the printer just to the front of the black plastic Paper Feed Guide (see Figure 4-9). To remove and replace the Transfer Roller, follow these steps. Note Do not handle the new Transfer Roller unnecessarily. Oils will build up on the roller and cause print quality problems.
Removing the Transfer Roller 1 Turn OFF and unplug the printer. 2 Open the printers top cover. 3 Remove the Toner Cartridge. 4 Use the hook inside the top cover to remove the Transfer Roller as follows. Hook the left side of the chrome rod beside the sponge roller, and lift the roller out. 5 Discard the used roller. Replacing the Transfer Roller 1 Slide the right end of the new roller (the end without the gear), onto the right slot. Press the rod into the slot. 2 Lower the gear end of the roller into place. 3 Install the toner cartridge. 4 Replace the hook tool. 5 Close the top cover. 6 Plug in the power cord and switch the printer ON.
4-16 Preventive Maintenance

Functional Overview

This section of the manual presents a functional overview of the printers. It provides the Service Representative with an understanding of the printing process. Refer to the block diagram of Figure 5-1 to see the relationship of the parts as a whole. This chapter discusses the following printer functions:
DC Controller System Formatter System Image Formation System Paper Feed System Power System Basic Sequence of Operation

Functional Overview 5-1

DC Controller System
The DC Controller PCA is responsible for coordinating all activities involved in the printing process. The DC Controller enables the drive circuitry for the laser beam, and coordinates print data from the Formatter PCA with paper size, laser beam motion, the high voltage system, fuser temperature, and motors. The DC Controller also shares machine status information with the Formatter PCA so that proper diagnostic messages are displayed on the control panel. The DC Controller communicates with the Paper Control PCA, the High Voltage PCA, the Envelope Feeder, Lower Cassette Assembly and Duplex Assembly by way of two serial data lines (SLI and SLO). One line (SLO) is used for sending commands, the other (SLI) is used for receiving status information from the selected devices. The amount of toner in the Toner Cartridge also is monitored indirectly with information on the serial data line. In summary, the following systems and functions are controlled and/or monitored by the DC Controller:

Bi-directional parallel connection. The printer can tell the host such things as the control panel settings, and allow the control panel settings to be set from the host. Dynamic I/O switching allows the printer to be configured with a host on each I/O. The printer can receive data from any I/O simultaneously. Context-sensitive switching allows the printer to recognize automatically the personalities (PostScript or PCL) of each host and configure itself to serve that personality. PJL can act as a spooler to print only sections of a print job as defined from the software. PJL allows any print job to be protected from the effects of the previous print job. If a print job is sent to the printer in landscape mode, the subsequent print jobs print in landscape only if they are formatted for landscape printing.

Functional Overview 5-15

Image Formation System
Laser printing requires the interaction of several different technologies (such as electronics, optics, and electro-photographics) to provide a printed page. Each process functions independently and must be coordinated with all other printer processes. The image formation process centers around the photosensitive drum and consists of six stages: 1. Cleaning 2. Conditioning 3. Writing 4. Developing 5. Transferring 6. Fusing
The toner cartridge houses the cleaning, conditioning, and developing stages of the electro-photographic (EP) process. Components of the image formation system that wear, degrade, or are consumed are built into the replaceable cartridge. The toner cartridge contains the photosensitive drum, primary charging roller, developing station, toner cavity, and cleaning station. This eliminates the need for a service call when replacement is required.

Figure 5-6

5-16 Functional Overview

Photosensitive Drum

The photosensitive drum is the heart of the Image Formation System. The special properties of this drum allow an image to be formed on the drums surface and then transferred to paper. The drum is an extruded aluminum cylinder. The outside of the cylinder is coated with a layer of organic-photoconductive material (OPC) which is non-toxic. The aluminum base of the photosensitive drum is electrically connected to ground potential (see Figure 5-7).

Figure 5-7

Drum Sensitivity The OPC material has properties similar to a photo-resistor. It becomes electrically conductive when exposed to light. When the photosensitive drum is exposed to light, the negative charges deposited on it are conducted to the ground potential of the drums base. Areas not exposed to light remain nonconductive and maintain their negative charge. Caution Do not expose the Toner Cartridge to any bright light source. Too much light permanently damages the drum.

All Pickup Rollers and Separation Pad Transfer Roller Replacement Installing the Toner Cartridge
Servicing the printer involves replacing printed circuit and electro-mechanical assemblies. Do not repair component failures within these assemblies. In all instances, replace the failed assembly. The assembly procedure is the reverse of the removal procedure, except where specific instructions are provided. Caution Power-off the printer and disconnect the power cord from the power outlet and the printer before servicing the printer. Some sheet metal edges, particularly around the formatter cage, are sharp. Be careful when working in these areas to avoid being cut. Note The printer contains parts that are sensitive to Electrostatic-Static Discharge (ESD). Always observe proper ESD procedures when servicing the printer. This symbol: appears in this chapter when the parts being serviced are especially susceptible to ESD damage.
Removal and Replacement 6-1

Required Tools

Table 6-1

QTY 1 1

#2 Magnetized Phillips Screwdriver (6-inch shaft) Small Needle Nose Pliers Small Flat-head Screwdriver (6-inch shaft) 5mm Nut driver

Hardware Review

All screws used in the printer are Phillips head, which require a Phillips screwdriver. Figure 6-1 shows the difference between a Phillips and a Pozidriv screwdriver. Note that the Phillips tip has more beveled surfaces. Caution Use of a Pozidriv screwdriver will damage the screw heads. Use Phillips only.

Phillips

Posidriv

Figure 6-1

Comparing Phillips and Pozidrive Screws
6-2 Removal and Replacement
Table 6-2 describes the screws used in the printers, and provides guidelines to help determine where each type of screw is used. The screws can vary in length depending on the thickness of the material being fastened. Typically, plated screws are used in areas visible to the customer, and black screws are used in all other areas of the printer. Always note where each type of screw is located and replace each one into its original location. Table 6-2 DRAWING Printer Hardware Descriptions DESCRIPTION
Threaded Phillips screw with lock and flat washer

PURPOSE

Used to fasten metal or plastic to threaded plastic or metal.
Threaded Phillips washer head Used to fasten metal or plastic screw to metal when high torque is required. Threaded Phillips w/captive star washer Used to fasten metal to metal when good electrical contact is needed. Used to fasten metal or plastic to plastic mainframes.
Self-tapping Phillips screw
To install a self-tapping screw, first turn it counter-clockwise to align it with the existing thread pattern, then carefully turn clockwise to tighten. Do not over-tighten. If a self-tapping screw-hole strips, repair of the screw-hole or replacement of the affected assembly is required.

6-49 Removal and Replacement

Figure 1-42

Fuser Wire Harness Cover Removal (LaserJet 4)
3 LaserJet 4: With a screwdriver, release the latches by first
pressing to clear the lower latch, then lifting to release the upper latch (see Figure 6-42a). LaserJet 4 Plus: With a screwdriver, release the latches by first pressing to clear the lower latch, then lifting to release the upper latch. Repeat until all (4) latches are free, then rotate the cover to release the latch on the side (see Figure 6-42b and 6-42c). 4 Release the two end latches (see Figure 6-42b). 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.
6-50 Removal and Replacement

Figure 1-42b

Fuser Cover End Latches (LaserJet 4 Plus)

Figure 1-42c

Fuser Wire Harness Cover Removal (LaserJet 4 Plus)
6-51 Removal and Replacement

Figure 1-43

Left Side Fuser Cover
5 Remove the (1) Heat Lamp lead (thermoswitch screw)(see

Figure 6-43 callout 1).

6 Press the thermoswitch tab towards the paper exit flag to
release the tab (see Figure 6-43 callout 2). Slide the Thermoswitch off the fuser frame (see Figure 6-43, callout 3). 7 LaserJet 4: Remove the cable retainer from the fuser frame, and free the heat lamp lead from the cable retainer. Note the orientation of the cable retainer. LaserJet 4 Plus/5: Remove the (2) screws from the end cover (see Figure 6-43, callouts 4 and 5). Note the wavy washer on the (1) screw touching the copper contact (see Figure 6-43, callout 4). Remove the thermistor connector from the frame and pull apart (see Figure 6-43, callout 6). Note the position of the Fuser Shipping Lever and remove from assembly. (continued on next page)
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.

Top Cover Right Side Cover Left Side Cover Paper Feed Assembly Toner Cartridge Fuser Assembly Transfer Roller
6-62 Removal and Replacement
After removing the Fuser Assembly, remove the contact plate from the rear of the printer, as follows:
1 Remove the (1) screw from the sheet metal Guide Plate Cover.
(This screw is behind the Fuser Assembly, see Figure 6-52, callout 1). 2 Remove the Guide Plate Cover by freeing the front edge, lifting upward, and sliding the cover out the rear of the printer. Note Do not lose any of the (6) rollers the Guide Plate Cover holds in place.

Figure 6-52

Guide Plate Cover Screw
6-63 Removal and Replacement

Figure 6-53

Paper Guide Rollers
3 Remove the (6) rollers from the High Voltage Contact
Plate (see Figure 6-53 callout 1). (continued on next page)
6-64 Removal and Replacement

Figure 6-54

Cross Member Screws
4 From the front of the printer, remove the (2) black self-tapping
screws that hold the Inner Cross-member. Remove the cross-member (see Figure 6-54 callout 1). (continued on next page)
6-65 Removal and Replacement

Figure 6-55

Left Toner Cartridge Guide Plate Screw
5 From the left side of the printer, remove the (1) or (2) black,
self-tapping screw(s) that holds the Left Toner Cartridge Guide Plate (see Figure 6-55, callout 1). 6 Release the guide plate latch (see Figure 6-55, callout 2). 7 Remove the Laser Shutter Pivot Pin from its seat in the Left Toner Cartridge Guide Plate (see Figure 6-55, callout 3). These two steps (5 & 6) are required for the next stage of the HVCP removal process.
6-66 Removal and Replacement
Removing the High Voltage Contact Assembly and Feed Guide Assembly
Note The following procedures are difficult and the components are damaged easily. The tolerances between the parts are close and several attempts may be necessary before the procedure is complete.

Figure 6-56

High Voltage Contact and Feed Guide Assembly Latches
1 Perform all the steps of Accessing the High Voltage Contact
Plate/Feed Guide Assembly in the order given.
2 Press the tab shown in Figure 6-56 to release the gear cover. 3 Release the (5) latches that hold the Contact Plate in place
(see Figure 6-56). Set the Contact Plate on the latch slots.
4 Free the Left Toner Cartridge Guide Assembly from its

retainers.

5 Lift the Contactor Plate and the Toner Cartridge Guide
Assembly out of the printer, Toner Cartridge Guide Assembly first.
6-67 Removal and Replacement
Replacing the High Voltage Contact Assembly/Feed Guide Assembly
The Toner Cartridge Guide Plate and the High Voltage Contact Assembly/Feed Guide Assembly must be installed together. Allow plenty of time to perform this procedure because several iterations of the process may be necessary.

Table 7-24
Improperly Sized Image Action
Perform the Cassette Size Switches (SW603, SW604, SW605) Functional Check on page 7-15. Ensure that the correct envelope size is selected if appropriate.
PC tray Microswitches. The paper tray microswitches indicate the paper size of the installed tray. This information is used to format the print image to the size of the paper installed in the tray. If the paper tray microswitches are defective, the image is formatted incorrectly. PS 5 is defective. PS 5 senses the trailing edge of the media being fed from the MP tray.
If improperly sized images result from printing from the MP tray, check that PS 5 is functioning correctly mechanically and electrically. This feature allows odd-sized media to be printed with the MP tray. Troubleshoot PS 5 as shown in the following procedure. Use the MP Paper Size Button on the Front Panel to correctly configure paper size for the MP Tray.
MP Paper Size is not set correctly.
PS5 Check (MP Tray Paper End Sensor) Functional Test 1 Make a test sheet by cutting a notch in the trailing edge of a sheet of paper as shown in Figure 7-9. 2 Perform the set up procedures listed for the PS4 check (MP Tray Empty Sensor) on page 7-17, and put the test sheet into the MP tray when the display reads XX LOAD LEGAL. 3 The self test print should stop 2 to 5 mm above the notch (see Figure 7-9). 4 Print that extends into cut out area indicates that the sensor PS5 is not free in its travel or is defective. Ensure that the sensor lever is free throughout its entire range of travel. If not, replace the lever or the sensor itself.

7-44 Troubleshooting

Figure 7-9

PS5 Test Sheet

Troubleshooting 7-45

Table 7-25

Vertical Dark Streaks Action
Change the Toner Cartridge. Replace the Toner Cartridge. Change type of media.
Dirty Primary Charge roller. Bad Toner Cartridge. Incompatible media. During media manufacture, inks, or other finishing processes may interfere with the electro-photographic or fusing process.

RG5-0454-000CN RG5-0879-130CN C2001-69003 C2037-69001 RG5-0455-000CN RG5-0880-130CN C2001-69004 C2037-RA1-7584-000CN RB1-0253-000CN RB1-2287-000CN RB1-3515-000CN RB1-2263-000CN RB1-3516-020CN RB1-2264-000CN RB1-3517-030CN RB1-2265-000CN RB1-3518-000CN RF5-0536-000CN RF5-0744-000CN RF5-0428-000CN RF5-0737-000CN RB1-2270-000CN RF5-0535-000CN RF5-0738-000CN RB1-2272-000CN RB1-3526-000CN RB1-2273-000CN RB1-3522-000CN RB1-2274-000CN RB1-3528-000CN RB1-3528-000CN RB1-2284-000CN RB1-2285-000CN RB1-3527-000CN RF5-0427-000CN RF5-0736-000CN
Washer, Grounding (LJ4 only) Upper Frame Roller, Upper Roller, Lower Guide, Paper Entrance

Guide, Separation

Cover, Left Cover (LJ4 only) Cover, Wire

Guide, Lower Separation

Lever, Sensor Lever, Release-Left Washer, Grounding Clamp, Plate Release Lever, Release

Cover, Right

Parts and Diagrams 8-31

Ref 20

Part # RS5-0232-000CN RS5-0393-000CN RS5-1063-000CN RS5-1097-020CN RS5-1064-000CN RS5-1098-000CN RS5-1065-000CN RS5-1099-000CN RS5-2168-000CN RS5-2265-020CN RS5-2180-000CN RB1-2286-000CN RH7-7045-000CN RH7-7054-000CN RH7-4046-000CN RH7-4054-020CN RH7-4048-000CN RH7-4055-020CN RS5-9055-000CN RG5-0474-000CN RG5-0881-000CN RG5-0537-000CN RG5-0977-000CN RB1-2289-000CN RG5-0737-000CN XB2-8300-607CN XA9-0702-000CN XB6-7300-409CN XA9-0678-000CN RF5-0716-000CN
Notes LJ4 LJ4+/5 S LJ4 LJ4+/5 LJ4 LJ4+/5 S LJ4 LJ4+/5 S LJ4 LJ4+/5 S S LJ4 LJ4+/5 S LJ4 LJ4+/5 LJ4 LJ4+/5 S LJ4 LJ4+/5 Gear, 23T
Bushing, Roller Bushing, Roller
Bushing, Lower Roller (2)
Spring, Compression (2) Spring, Tension Spring, Guide Thermistor
Heater, Halogen, 100/115V Heater, Halogen, 220/240V Screw, Shoulder (M3) Thermoswitch Assy
LJ4 Cable, Fuser LJ4+/5 J743/J744 LJ4 LJ4+ S LJ4 LJ4+/5 S LJ4 LJ4+/5 S S Cover, Heater

Screw, M3x6 (4)

Screw, M3x4 Screw, M3x3 Screw, Shoulder w/washer (M3) (Qty 2)

8-32 Parts and Diagrams

Accessory Parts

Figure 8-11

Lower Cassette Base Assembly

Parts and Diagrams 8-33

Table 8-11
Part # Notes LJ4 Description LC Base Assembly w/non-Legal Cassette
C2083A C2083B C2083D C3921A RB1-2606-000CN RB1-7977-000CN RB1-2628-000CN RB1-2647-000CN RF5-0374-000CN RF5-0375-000CN RG5-0482-000CN RG5-2207-000CN
LJ4 LC Base Assembly with Legal Universal LJ/4+ Cassette LJ5 Tray 3 LJ4/4+ Cover, Front LJ5 S S S S Cover Plate, Grounding Click, Spring Shaft
LJ4/4+ Frame, Lower Assembly LJ5 Foot, Rubber (Qty 2) Mount, Cover Assembly Roller, Guide S Arm, Sensor Cable, Paper Feed LJ4 LJ4+ LJ5 S Inner Cover Assy
10A RB1-2620-000CN 11 RG5-0483-020CN
11A RB1-2616-000CN 11D RB1-2615-000CN 11F RG1-0542-020CN 12 RG5-0487-000CN RB1-2609-000CN RB1-7978-000CN XA9-0591-000CN RG5-0541-000CN RG5-1086-000CN

Screw (M3 x 8) (Qty 4) LJ4 Lower Cassette Drive PCA LJ4+/5

8-34 Parts and Diagrams

Figure 8-12
Lower Cassette Drive Assembly

Table 8-12

Part # Notes LJ4 LJ4+ LJ5 Description Drive Assembly, Lower Cassette Drive Assembly, Tray 3 Weight LJ4 LJ4+ LJ5 Roller, Pickup
RG5-0481-000CN RG5-1099-000CN RG5-2209-000CN RB1-2627-020CN RB1-2632-000CN RB1-2650-000CN RB1-7983-000CN

Parts and Diagrams 8-35

Figure 8-13 Table 8-13
Lower Cassette Assembly Lower Cassette Assembly

Ref 1 1

Part # C2084A C2084C C2084B C2084D C3923A RB1-2645-000CN RB1-8009-000CN RF5-0446-000CN RF5-1675-000CN
Notes LJ4 LJ4\4+ LJ4 LJ4/4+ LJ5 LJ4/4+ LJ5 LJ4/4+ LJ5
Description Universal 500 sheet Lower Cassette Tray (non-Legal) Universal 500 sheet Lower Cassette Tray (Legal)
Cover, Rear Cassette Plate, End

8-36 Parts and Diagrams

Figure 8-14

Universal Cassette

Parts and Diagrams 8-37

Table 8-14

Part # Notes LJ4 LJ4+ LJ5 LJ4 LJ4+ LJ5 LJ4 LJ4+ LJ5 Description 250 sheet Universal Tray (Legal, Letter, Exec, A4) 250 sheet PC Tray (letter)
C2085A C2085D C3924A C2085B C2085E C3925A C2085C C2085F C3926A 24 RB1-2370-020CN RF5-0430-000CN RB1-2391-000CN RB1-7969-000CN

250 sheet PC Tray (A4)

Plate, Length Adjustment (part of tray assy) Plate (part of tray assy) LJ4/4+ Cover, Legal LJ5

SIMM Memory Table 8-15

Part # C2063A C3130A** (C3130-60001) C2064A C3131A** (C3131-60001) C2065A C3132A** (C3132-60001) C2066A C3133A** (C3133-60001) C3146A** C2080A C3129A C3918A C2080-69001 C3129-69001 C3918-69001 C2081A N/A

Simm Modules

Notes LJ4 LJ4+/5 LJ4 LJ4+/5 LJ4 LJ4+/5 LJ4 LJ4+/5 LJ4+/5 LJ4 LJ4+ LJ5 LJ4 LJ4+ LJ5 LJ4 LJ4+/5 Size 1 MByte 2 MBytes 4 MBytes 8 MBytes 16 MBytes PostScript Level 2 Emulation SIMM PostScript SIMM Package, Replacement Only IBM/Epson Emulation SIMM 80nS RAM 80nS RAM 80nS RAM 80nS RAM Type
**This memory will NOT operate in the LaserJet 4

8-38 Parts and Diagrams

Miscellaneous Parts and Accessories Table 8-16

Part # 92298A J2341A J2552A (J2552-69001) J2550A (J2550-69001) C2082B C3927A C2082-69001 C3927-69001 C2809A C2929A LJ4 LJ4+/5 LJ5 LJ4/4+ LJ5 LJ4/4+ LJ5 LJ4+/5 LJ5
Miscellaneous Parts and Accessories
Notes Description Toner Cartridge AppleTalk MIO Interface 10-BaseT MIO Interface Envelope Feeder (new) Envelope Feeder (exchange) 9-25 Pin Adaptor Infrared Transceiver Pod

Parts and Diagrams 8-39

Parts List
Table 8-17 Alphanumeric Parts List
Part # J2550A (J2550-69001) C3146A C2085C C2085F C3926A C2085B C2085E C3925A C2085A C2085D C3924A C2063A C3130A (C3130-60001) C2064A C3131A (C3131-60001) C2065A C3132A (C3132-60001) C2066A C3133A (C3133-60001) C2809A J2341A J2552A (J2552-69001) RB1-2615-000CN RG5-0475-000CN RG5-0467-060CN RG5-0466-000CN 8-6a 8-6a 8-11 8-14 8-14 8-14 8-14 8-14 8-14 8-14 8-14 8-14 Fig. # Printer 5 4+/4+ 4+ 4+ 4+/4+/4+/4+/5 4+/4+/5 4/4+/5 4/4+/5 4/4+/5 4/4+/5
Description 10-BaseT MIO Interface 16 Mbytes 250 Sheet PC Tray (A4) 250 Sheet PC Tray (A4) 250 Sheet PC Tray (A4) 250 Sheet PC Tray (letter) 250 Sheet PC Tray (letter) 250 Sheet PC Tray (letter) 250 Sheet Univ. Tray (Legal, letter, exec, A4) 250 Sheet Univ. Tray (Legal, letter, exec, A4) 250 Sheet Univ. Tray (Legal, letter, exec, A4) 80nS RAM, 1 Mbytes 80nS RAM, 1 Mbytes 80nS RAM, 2 Mbytes 80nS RAM, 2 Mbytes 80nS RAM, 4 Mbytes 80nS RAM, 4 Mbytes 80nS RAM, 8 Mbytes 80nS RAM, 8 Mbytes 9-25 Pin Adaptor AppleTalk MIO Interface AppleTalk MIO Interface Arm, Sensor Assembly, Delivery Sensor Assembly, MP (Tray 1) Tray Base Assembly, Sensor Holder

8-40 Parts and Diagrams

Description Base, Switch Mounting Base, Switch Mounting Belt, Timing Block, Connecting Brush, cleaning Bushing, Lower Roller (2) Bushing, Lower Roller (2) Bushing, Roller Bushing, Roller Bushing, Roller Bushing, Roller Cable Clip Cable Paper Control PCA/DC Controller Cable, D.C. Cont/Laser Cable, D.C. Cont/Laser Cable, D.C. Cont/Scanner Cable, D.C. Cont/Scanner Cable, D.C. Controller/Interconnect PCA Cable, D.C. Controller/Interconnect PCA Cable, Delivery Sensor Cable, Delivery Sensor Cable, Display Panel Cable, Display Panel Cable, Env. Feeder (J604/J136) Cable, Fuser (J743/J744) Cable, Fuser (J743/J744) Cable, Low Voltage, Fuser Drive Cable, Lower Feed Assembly (J603/J135) Cable, Main Motor Cable, Main Motor
Part # RB1-2118-000CN RB1-7906-000CN XF9-0410-000CN RB1-2251-000CN RB1-2260-000CN RS5-1065-000CN RS5-1099-000CN RS5-1063-000CN RS5-1064-000CN RS5-1097-020CN RS5-1098-000CN RB1-7908-000CN RG5-0524-000CN RG5-0556-000CN RG5-0976-000CN RG5-0520-000CN RG5-0975-000CN RG5-0521-000CN RG5-0979-000CN RG5-0522-000CN RG5-0980-000CN RG5-0519-000CN RG5-0982-000CN RG5-0529-000CN RG5-0537-000CN RG5-0977-000CN RG5-0526-000CN RG5-0530-000CN RG5-0538-000CN RG5-0978-000CN

Fig. # 8-5 8-5 8-8 8-4d 8-3a 8-10 8-10 8-10 8-10 8-10 8-10 8-4a 8-5 8-4a 8-4a 8-4a 8-4a 8-4d 8-4d 8-9 8-9 8-3a 8-3a 8-6a 8-10 8-10 8-4b 8-5 8-4b 8-4b
Printer 4/4+ 5 4/4+/5 4/4+/5 4/4+ 4 4+/4 4+/5 4+/5 4+/5 4/4+/4+/4+/4+/4+/4+ 4/4+/4+/5 4/4+/5 4/4Plus/4+/5

Parts and Diagrams 8-41

Description Cable, Paper Feed Clamp, Plate Release Click, Spring Click, Tray 1 Door (Qty 2) Connector PCA Assembly Cover Cover Cover Cover, Connector Cover, Connector Cover, Edge Cover, Front Cover, Front Cover, Heater Cover, Heater Cover, High Voltage Cover, Inner Cover, Inner Cover, Left Cover, Left Cover, Legal Cover, Legal Cover, Option Board Cover, Rear Cassette Cover, Rear Cassette Cover, Right Cover, Right Cover, SIMM Board Cover, SIMM Board Cover, SIMM Board Cover, Upper
Part # RG1-0542-020CN RB1-2284-000CN RF5-0374-000CN RB1-7902-000CN RG5-0515-000CN RB1-2270-000CN RB1-2345-000CN RB1-2628-000CN RB1-2357-000CN RB1-7897-000CN RB1-2363-000CN RB1-2606-000CN RB1-7977-000CN RB1-2289-000CN RG5-0737-000CN RB1-2226-000CN RB1-2141-000CN RB1-7888-000CN RF5-0428-000CN RF5-0737-000CN RB1-2391-000CN RB1-7969-000CN RB1-2366-000CN RB1-2645-000CN RB1-8009-000CN RF5-0427-000CN RF5-0736-000CN RB1-2343-000CN RF5-0739-000CN RF5-1654-000CN RF5-0360-000CN
Fig. # 8-11 8-10 8-11 8-4a 8-4d 8-10 8-5 8-11 8-4c 8-4c 8-4c 8-11
Printer 4/4+/5 4/4+ 4/4+/4/4+/4/4+ 4/4+/5 4/4+ 4/4+ 5
8-10 8-10 8-4d 8-4a 8-4a 8-10

4 4+ 4/4+/5 4/4+ 4+/5

8-14 8-14 8-4c 8-13 8-13 8-10 8-10 8-4c 8-4c 8-4c 8-3a
4/4+ 5 4/4+/5 4/4+ 4+/4+ 5 4

8-42 Parts and Diagrams

Description Cover, Upper Cover, Upper Cover, Wire Cover, Wire DC Controller PCA DC Controller PCA DC Controller PCA DC Controller PCA DC Controller PCA DC Controller PCA DC Controller PCA DC Controller PCA Display Assembly (English) Display Assembly (English) Display Assembly (English) Display Assembly (English) Display Assembly (w/o overlay) Display Assembly (w/o overlay) Display Assembly (w/o overlay) Display Assembly w/o overlay Display Assembly w/o overlay Display Assembly w/o overlay Display Assembly w/o overlay Display Cover Drive Gear Assembly Drive Gear Assembly Drive Gear Cover Drive Gear Cover Drive, Assembly, Lower Cassette Drive, Assembly, Lower Cassette Drive, Assembly, Lower Cassette
Part # RF5-0732-000CN RF5-1643-000CN RF5-0535-000CN RF5-0738-000CN C2001-69002 C2001-69002 C2037-69004 C2037-69004 RG5-0511-000CN RG5-0511-000CN RG5-0966-000CN RG5-0966-030CN C2001-69010 C2037-69005 RG5-0533-000CN RG5-1077-000CN RG5-0478-000CN RG5-2238-000CN RG5-2238-000CN C2001-69010 C2037-69005 RG5-0478-000CN RG5-2238-000CN RB1-7887-000CN RG5-0457-000CN RG5-0876-050CN RB1-2318-000CN RB1-3481-020CN RG5-0481-000CN RG5-1099-000CN RG5-2209-000CN
Fig. # 8-3a 8-3b 8-10 8-10 8-1b 8-4b 8-1b 8-4b 8-1b 8-4b 8-1b 8-4b 8-3a 8-3a 8-3a 8-3a 8-3a 8-3a 8-3b 8-3 8-3 8-3 8-3 8-3b 8-4b 8-4b 8-4b 8-4b 8-12 8-12 8-12
Printer 4+ 4+/4 4+/5 4+/4 4+/5 4+/4+ 4/4+ 4+ 4 4+ 4+ 4 4+ 4+/4+/4+ 5

- Value +

Press - Value + to cycle through the selected items values. Press the > end of the key to move forward through the values. Press the < end of the key to move backward through the values. The Select key saves a control panel setting you selected. An asterisk (*) appears next to the saved selection, indicating that it is the default. Default settings remain in place when the printer is switched off or reset. The Select key is also used when printing a test page or configuration page from the control panel.

Select

B-12 LaserJet 5/5M/5N Printer
Figure B-3 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, the new menu items automatically are added at the appropriate location. For example, a PostScript Menu appears following the PCL Menu. To change a control panel setting: 1 Press Menu repeatedly until the menu you want appears. 2 Press Item repeatedly until the item you want appears. 3 Press -Value+ until the setting you want appears. 4 Press Select to save your selection. Note An asterisk appears next to your selection in the display, indicating that it is now the default.
5 Press Go to exit the menu.

Table B-9

Control Panel Menu for the HP LaserJet 5 (Refer to Figure B-3)

Reference 11

Printing Menu: Lists the current printing and PowerSave settings. PCL Fonts Menu: Lists current font settings. Postscript Menu: List current postscript settings. Job Menu: Lists current settings for print resolution, personality, and I/O timeout. Config Menu: List current internal configuration settings of the printer. Mem. Config. Menu: Lists I/O buffer and resource saving buffer settings. Parallel Menu: Lists current settings of the parallel port. Serial Menu: Lists current settings of the serial port. HP MIO Menu: Lists current settings of the MIO card. Reset Menu: Lists reset options available. Test Menu: Lists internal tests available.
LaserJet 5/5M/5N Printer B-13

Figure B-3

Control Panel Menu Map
B-14 LaserJet 5/5M/5N Printer

Printing Menu

TableB-10 Printing Menu Items
Item PRINT MENU MAP Options No options available Explanation When PRINT MENU MAP is displayed, press Select to print a configuration page and a menu map. The message PRINTING CONFIGURATION PAGE is displayed. PWRSAVE stands for PowerSave. This menu item sets the amount of time you want the printer to be idle before the printer cools down. The printer automatically starts warming to printing temperature when a job is sent to the printer, a control panel key is pressed, paper is loaded or removed, or the top door is opened. Select any number from 1 to 999. Press - Value + once to change setting by increments of 1 or hold down to scroll by increments of 10. The default image size for paper or envelopes can be set with the control panel.

Enter the Service Mode as described previously. Press the [Menu] key to display SERVICE MENU. Press the [Item] key to display CR PAPER=LETTER Press the [Value+/-] key to toggle between Letter and A4 paper. Press the [Select] key to save your selection. Press [Go] to exit the Service Mode.
For more information regarding the Cold Reset procedure, refer to Chapter 3 of this manual.
LaserJet 5/5M/5N Printer B-27

Skip Demo

If set to TRUE, will disable any test and demo pages containing the HP logo. This setting should only be used by OEMs not wishing to give user-access to these pages.

Big Data

This item will allow a user to increase the amount of status readback buffer if the item is set to ON. The default for this item is OFF. The printer must be power-cycled after changing this value in order for the new buffer size to take effect.

Diagnostics

Allows a diagnostic mode for firmware developers. Should always be set to OFF (default value).
B-28 LaserJet 5/5M/5N Printer

Programming a Flash SIMM

A flash SIMM may be programmed while installed in the printer. To program a flash SIMM.
1 Hold down the Menu> , Item< , Value+ , and Select keys while

powering on the printer.

2 The printer will display PROGRAM SLOT 4. To change the slot

number, press Value+/-.

3 Once the desired slot number is displayed, press Select. 4 The printer will display OK, followed by ERASING SIMM. If
the SIMM is correcly earased, the printer will display START DOWNLOAD. At this point, you may send the binary file to be flashed to the printer. 5 The 16 characters on the VFD will flash until the download is completed. When the download is completed, power cycle the printer.
LaserJet 5/5M/5N Printer B-29
The default control panel display language is set for English. Supported languages are: English, French, German, Italian, Spanish, Finnish, Danish, Dutch, Swedish, Norwegian, Turkish, Polish, and Portuguese. Follow these instructions to change the display language.
1 Switch OFF the printer. 2 Press and hold Select while switching the printer ON until
SELECT LANGUAGE appears in the display.
3 After the power-on self test, LANG=ENGLISH appears. Press
[Value+/-] until the desired language appears in the display. to the language to indicate it is now the default.

Commonly print complex graphics. Use many temporarily downloaded fonts. Print complex documents. Print duplexed PostScript documents. Use advanced functions (such as I/O Buffering and Resource Saving).
Table 2-1 presents the amount of memory required for the most common print jobs using 600-dpi printing.
Table 2-1 Minimum Memory Requirements PCL Minimum Memory PostScript Requirements Minimum Memory Requirements 4 MBytes 4 MBytes 4 MBytes 4 MBytes 10 MBytes 9 MBytes 12 MBytes 12 MBytes 14 MBytes 22 MBytes

Print Job

Paper Size

single-sided printing

Letter, A4, Legal 11 x 17 in, A3

two-sided printing

Letter, A4 Legal 11 x 17 in, A3
Memory and Memory Management 2-3
Improving Performance with I/O Buffering
When you select a print command from your software application, the software sends your request to the print engine. To help you get back to work more quickly, the print engine reserves a portion of its memory to hold the file or page to be printed in an I/O buffer until it is the next to be printed. For each MByte of memory you add to your printer, 10 KBytes is automatically reserved to hold print jobs in progress. The more memory that is reserved, the greater the number of files or pages the printer can store. In most cases, it is to your advantage to let the printer automatically reserve memory for I/O buffering. However, you may change the amount of the I/O buffer by increments of 100 KBytes up to a maximum of 10,000 KBytes. See Chapter 4, Printer Control Panel, to learn how to use the printers Input/Output (I/O) Menu to change the I/O buffer.
When you change the I/O buffer setting, all downloaded resources are deleted, unless they are stored on the optional hard disk.
2-4 Memory and Memory Management

Printer Software

Included with your HP LaserJet 5Si/5Si MX/5Si NX printer is a CD containing the HP LaserJet 5Si /5Si MX /5Si Mopier Printing System. On the Printing System CD are software components and drivers that benefit end users and network administrators. The CD has two partitions, one for Intel-based systems and one for Apple Macintosh systems. When you insert the CD, the partition that corresponds to your operating system is automatically made available to you. The other partition will be hidden. The Printing System includes software designed for end users operating in the following environments:

If a driver is not available, use an older HP LaserJet printer driver (such as the HP LaserJet 4 printer driver) until a newer driver becomes available. However, some of the advanced features of the new printer may not be usable with an older driver. If the necessary software is not listed in this chapter, contact your software manufacturer or distributor and request software for the HP LaserJet 5Si family of printers.

Printer Software 3-5

Software Components
In addition to drivers, the Printing System includes the software components listed below. For End-Users:
HP Font Smart HP Toolbox DocWise HP JetPrint
For Network Administrators:
HP JetAdmin HP Print Server NLM Macintosh Utilities HP LaserJet Utility Bitmapped Screen Fonts HP Symbol Set utility for DOS
Install the software by following the procedures listed on the disk labels or on the insert in the CD ROM package. Software application notes are available by calling HP First. See the Calling for Help section of Chapter 7 for the HP First phone number. The software components listed above are described in the following sections.

End-User Software

HP Font Smart
The HP Font Smart utility is a font management tool. It allows you to display on your computer screen the 45 fonts included in your printer. This approximation of screen display to printed result is known as WYSIWYG, an acronym for what you see is what you get. The printers fonts are automatically loaded and configured when you install the Printing System. Samples of all the fonts available to you are located in Chapter 1. (HP Font Smart is not needed on Macintosh systems.)

3-6 Printer Software

HP JetPrint
HP JetPrint is printer management software available only to Windows 3.1x clients running under Novell NetWare. It allows users to view, select, and print to all HP printers and printers on the network from one screen. Users can view control panel messages and check the status and progress of print jobs. Access HP JetPrint from the Utilities tab of HP Toolbox.

HP Toolbox

HP Toolbox is a one-step access tool to document status, printer status, and Show-Me-How information available to Windows 95 clients on Novell NetWare that is installed as part of the Printing System. From the Toolbox, which is accessed from the printer icon on the taskbar in Windows 95, users can also configure printer alerts and launch other utilities like HP Font Smart. (A subset of this functionality is available for Windows 3.1 clients as well.)

5 Press [Menus] or [On Line] to exit.
In a menu mode, if no keys are pressed for approximately 30 seconds, the system automatically returns to the top level and displays READY (or an existing error or service message).
Printer Control Panel 4-7

Tray Menu

This menu shows the paper status (type or size) of all available paper trays. Press [Items] repeatedly to see each tray size and type in turn. Table 4-5 presents the messages that appear when you select each of the menu items.
Table 4-5 Menu Tray Menu Item Explanation Note: Available only if you have the optional Envelope Feeder. Type of envelopes available in the optional Envelope Feeder. Provides selection of other types. Note: Available only if you have the optional Envelope Feeder. Size of envelopes available in the optional Envelope Feeder. Provides selection of other sizes. Type of media loaded in Tray 1 (multi-purpose). Provides selection of other types. Size of media available in Tray 1. Provides selection of other sizes. Type of media available in Tray 2. Provides selection of other types. Type of media available in Tray 3. Provides selection of other types. Type of media available in optional 2000-Sheet Input Tray (Tray 4). Provides selection of other types.
ENVELOPE FEEDER TYPE=PLAIN
ENVELOPE FEEDER SIZE=COM10

TRAY MENU

TRAY 1 TYPE=LETTERHEAD TRAY 1 SIZE=LETTER TRAY 2 TYPE=PLAIN TRAY 3 TYPE=PLAIN TRAY 4 TYPE=PLAIN
Tray 1 and the optional Envelope Feeder do not have a sensor for identifying paper size. If either is being used, you will also have a menu item for media size. You must set the size of the paper loaded before continuing. Paper sizes for Trays 2, 3, and 4 are automatically sensed.
4-8 Printer Control Panel
Changing Paper Type from the Control Panel
1 Press [Menus] repeatedly until TRAY MENU appears. 2 Press [Items] repeatedly to scroll through the trays and their types. 3 Press [+] repeatedly to scroll through the paper type or size options. 4 Press [Select *] to save your choice.
Selecting media by type rather than source is similar to locking out the tray(s), which is a feature of previous HP LaserJet printers. If letterhead is loaded in Tray 1, and print on plain paper is selected in the driver, the printer will not pull the letterhead paper from Tray 1. However, the printer will pull from either of the other trays if plain paper is loaded, and has been set on the printer control panel.

Print Tasks 5-11

5 Adjust the left paper guide by
pushing in (1), then lifting up and out (2).
6 Position the guide over the
appropriate lines marked in the tray. Press the guide into the rear slot (1) and then lower down (2) into the front slot (3). Be sure the guide is not skewed.
7 Place paper into the tray without
stacking it above the paperfill mark. Fewer than 100 sheets of paper may not lay flat (from rear to front).
Note For single-sided printing place paper into the tray with side-to-be-printed down. Letterhead should orient to the rear of the tray. Load 3-hole paper with holes on your right. For two-sided printing place paper with the front side (odd-numbered) up. Letterhead should be oriented to the rear of the tray. Load 3-hole paper with holes on your left.
8 Ensure that the paper size tab is set
correctly. Then slide the tray back into the printer. 9 If you wish to select your paper by type rather than tray (source) in your software, set the correct paper type for Trays 2 and 3 in the TRAY MENU on the printer control panel. Adjust the paper stop guide on the Top Output Bin for the paper sizes larger than Letter or A4 (see Figure 5-4).
Note If paper curls or skews excessively during printing, open the tray and turn the stack of paper over. To avoid a paper jam, never open the tray while it is in use.

5-12 Print Tasks

Optional 2000 Sheet Input Tray
An optional 2000 Sheet Input Tray is available as an option for the HP LaserJet 5Si/5Si MX/5Si NX printers (see Figure 5-1.) The tray fits under the printer, acting as a base.

Figure 5-1

2000 Sheet Input Tray (Tray 4)
Tray 4 adjusts for Letter, Legal, ISO A4, ISO A3, 11 in. x 17 in., and JIS B4 paper. The tray holds approximately 2000 sheets of 20-lb Bond paper.

Print Tasks 5-13

Loading Paper into Tray 4
Slide Tray 4 open until it stops. Adjust the front guide by pulling up on the pin, placing the guide into the corresponding top and bottom slots, and then pushing in the pin. Adjust the back guide by pulling up on the pin, placing the guide into the corresponding top and bottom slots, and then pushing in the pin. Adjust the left guide by pulling up on the pin and placing the guide into the corresponding top and bottom slots. Store the left guide when using 11 x 17 in paper.

5-14 Print Tasks

5 Load up to 2000 sheets of paper into
the tray; do not allow paper to extend above the paperfill mark on the sides.

Where and how you make selections depends on your software application or associated printer driver. In some environments, the selection process may be available only from within the printer driver (if the control panel has been locked by the network administrator, for example.) See Chapter 3 or your application manual for more information.
Selecting the Left Output Bin from the Control Panel
1 Press [Menus] repeatedly until CONFIGURATION MENU appears. 2 Press [Items] repeatedly until PAPER DESTINATION=TOP OUTPUT

BIN * appears.

3 Press [+] repeatedly until OPTIONAL OUTPUT BIN 1 or bin name
assigned to it by the Network Administrator appears.
4 Press [Select *] to save your choice. An asterisk (*) appears next to your

selection.

Print Tasks 5-25

Adjusting the Paper Stop

The paper stop (shown in Figure 5-4) is located near the Top Output Bin. It can be adjusted to help paper lay flat as it exits the printer. The paper stop does not have to be raised for Letter or A4 size media. Note that the printer jams if the paper stop is set to a smaller size of media than is being printed.
1 Pull the left side of the paper stop up until the stop is in an upright position. 2 Slide the paper stop to the mark indicating the largest paper size to be

printed.

Figure 5-4

7 x3 A

B4 GL L

Adjustable Paper Stop

5-26 Print Tasks
Printing to the Multibin Mailbox or Mailbox with Stapler
The optional Multi-Bin Mailbox or Mailbox with Stapler can work in one of three modes: mailbox mode, job separation mode, or stacking mode. The network or printer administrator determines which mode of operation is chosen through an HP network configuration utility, such as HP JetAdmin or HP LaserJet Utility. You need to set up your printer driver to reflect the mode chosen by the administrator. Bidirectional environments automatically reflect the administrators choices in your printer driver. The printer control panel displays different names for the mailboxes and stapler, depending on which mode the driver is using. In Mailbox Mode, if the Control Panel says: OPTIONAL OUTPUT BIN 1 OPTIONAL OUTPUT BIN 2 through 6 OPTIONAL OUTPUT BIN X Then the physical location is: Left Output Bin Mailbox 1-5 Stapler Bin
(X represents any number other than 1 through 6.) In Job Separation or Stacking Modes, if the Control Panel says: OPTIONAL OUTPUT BIN 1 OPTIONAL OUTPUT BIN 2 OPTIONAL OUTPUT BIN X

residue from the paper path area, the registration roller (B), and the toner cartridge cavity.
CAUTION Do not touch the transfer roller (A). Skin oils on the roller can reduce print quality. If toner gets on your clothes, wipe it off with a dry cloth and wash your clothes in cold water. Hot water sets toner into fabric.
4 Replace the toner cartridge, close the
printer, reconnect all cables, and switch the printer ON.
7-2 Maintenance and Troubleshooting

Toner Cartridge

Extending Toner Cartridge Life
The life of your toner cartridge depends on the amount of toner your print jobs require. When you print word-processed text, average toner cartridge yield is 15,000 pages printed at 5% coverage. (A typical full-page business letter is about 5% coverage.) This assumes that the print density setting is in the middle range. Using EconoMode can further extend average toner cartridge yield. (See Chapter 6, Print Quality.) EconoMode extends toner usage beyond the specified 15,000 images. However, extended use of the toner cartridge assembly may result in wear of moving parts within the cartridge; this may produce unusual noises. Because of this HP cautions you not to use EconoMode full time.
Storing and Installing the Toner Cartridge
Do not remove the toner cartridge from its packaging until you are ready to use it. The shelf life of an unopened cartridge package is approximately 2 1/2 years; the shelf life of an opened cartridge package is approximately six months. Use the cartridge before the expiration date (the expiration date is stamped on your toner cartridge box). To install a new toner cartridge, follow the instructions in the Installation Instruction Guide included in your toner cartridge box. A separate Recycling Instruction Guide is also included.
Maintenance & Troubleshooting
Avoid touching the adjacent fusing area. It may be HOT.
HP Policy on Use of Non-HP Toner Cartridges
Hewlett-Packard does not recommend use of non-HP toner cartridges, either new or remanufactured. HP cannot influence or control the quality of these cartridges because they are not HP products.
Maintenance and Troubleshooting 7-3
Redistributing Toner in the Cartridge
When the TONER LOW message appears, you can extend the life of your toner cartridge and temporarily re-establish print quality by redistributing the toner.
1 Open the printers top cover. 2 Remove the toner cartridge.
WARNING Avoid touching the adjacent fusing area in the print engine. It may be HOT.
3 Rotate the toner cartridge back and
forth five or six times to redistribute toner.
4 Reinsert the toner cartridge and close
the top cover. The TONER LOW message may continue to appear, but the print quality should improve. If the print remains light, replace the toner cartridge using the instructions in the Installation Instruction Guide inside the toner cartridge box.

Printer Response Problems

Printer Does Not Turn On

Check to see if. Printer is not plugged in. Printer voltage is not correct. Solution Plug the AC power cord firmly into the grounded power receptacle and into the printer. (Be sure the power source is energized.) Make sure line voltage is in the correct range. (See the product label next to the power receptacle on the back of your printer for voltage requirements.)
Blank or Garbled Control Panel Display
Check to see if. Printer is not switched ON. Printer is switched ON but internal fans are not running. Solution Put the printers power switch in the ON position. Make sure the line voltage is correct for the printers power configuration. (See the plate next to the power receptacle on the back of your printer for voltage requirements.) If you are using a power strip and its voltage is not within specification, plug the printer directly into the power receptacle. Press all the keys to see if one is stuck; contact your HP service representative if this does not work. Reconfigure the control panel display language. Refer to the Getting Started Guide.
Display is blank and internal fans are not running. Printer display is in the wrong language or displays unfamiliar characters.
7-8 Maintenance and Troubleshooting
Printer Cannot Print Configuration Page
Check to see if. Correct size of paper is not loaded Toner cartridge sealing tape is not removed. Solution Check paper trays to be sure correct size media is loaded (Letter or A4). Also, check that guides are set correctly. Remove sealing tape from toner cartridge. See the Getting Started Guide or the installation guide that came with your toner cartridge.
Paper tray is out of paper. Add paper and close tray, if appropriate. Printer cover(s) is open. Paper is jammed in the printer. Messages appear in the display. Firmly close the printer top cover and all doors (left, front, and right). Check for paper jams. (See Paper Jams later in this chapter.) Review the messages for help. (See Printer Messages later in this chapter.) If no error messages appear but the configuration page still does not print, call for assistance.
Display Messages Cannot be Cleared
Message TONER LOW LOAD TRAY 2 PLAIN LEGAL (or similar messages requesting that you load media) HP MIO 1 INITIALIZING HP MIO 2 INITIALIZING Solution
See Clearing the TONER LOW Message earlier in this chapter. Load the requested media into the indicated tray. Press [Select *] to override and to print on an already loaded paper size.
Wait for the message to disappear (approximately 5 minutes). If the printer MIO card is operating correctly and communicating with the network, this message disappears after approximately one minute and no action is required. If the MIO card is unable to communicate with the network, this message remains for five minutes and then disappears. In this case the printer is not communicating with the network (even though the message is no longer present). The problem may be a bad MIO card, a bad cable or connection on the network, or a network problem. Contact your network administrator.

Software is selecting Check your software application to be sure the print job is being sent to the wrong port. the correct port (for example, LPT1). Printer port problem Check that your computers port is configured and working properly. One way to check this is to connect another printer to that port on your computer and print an application you know works. Check for network or shared printer problems by connecting your computer directly to the printer and printing from an application you know works. If you suspect network problems, check with your network administrator or consult the network documentation that came with your printer network card(s). 1. Add a Mode command to your computers AUTOEXEC.BAT file for the parallel port. It should be inserted immediately following the PATH statement: For DOS versions below 4.0, add: MODE LPT1:,,P For DOS versions 4.0 and above, add: MODE LPT1:,,B 2. Your I/O cable might be faulty; see Printing Incomplete or Incorrect later in this section.
Network or shared printer problems
Computer displays DOS messages such as: Write Fault Error Writing Device LPTn: Abort, Retry, Ignore?
Maintenance and Troubleshooting 7-11

Print Speed Too Slow

Situation Solution First page takes Set the Power Save feature for a longer time period or turn it off. (See much longer to print Configuration Menu in Chapter 4.) A page may take longer to print than following pages. due to complex formatting commands, so changing the Power Save period may not result in the first page being printed faster. Printer is usually slow to respond. 1. Printer speed is highly dependent on how your software application is set up, which printer driver you are using, and how much traffic is on the network. See the Getting Started Guide for configuration information. 2. You may need to add more memory. See Chapter 1, About Your Printer, for HP memory part numbers. Also see the Determining Memory Requirements section in Chapter 2, Memory and Memory Management.
Printing Incomplete or Incorrect
Situation Blank pages print. Solution 1. Turn the printer OFF and then back ON. 2. Make sure toner cartridge is installed properly. 3. Make sure the toner cartridge sealing tape has been removed. (See the Getting Started Guide or the installation guide that came with your toner cartridge.) Garbled pages print, there are overprints, or only a portion of a page prints. 1. Ensure that your software application is configured for the correct printer. 2. Replace the printer interface (I/O) cable with a cable you know works to see if the cable is defective. 3. Your parallel printer cable quality may be defective. Use a high-quality cable; see Chapter 1 for an HP cable part number. 4. Set the PERSONALITY item in the Configuration Menu to AUTO (see Chapter 4). The printer may have been set to PCL and a PostScript job was sent to the printer, or vice versa. 5. Data file sent to the printer may be corrupt. Try sending another file to see if it prints. The job wasnt duplexed. You may need to add more printer memory. See Chapter 1, About Your Printer, for HP memory part numbers. Also see the Determining Memory Requirements section in Chapter 2, Memory and Memory Management.

The stapler is out of staples. Job is Load a new stapler cartridge. not stapled. The stapler has not finished correctly. The paper is misaligned and cannot be stapled. Clear the stapler jam and resend job. Remove the paper from the stapler and resend the job.
Maintenance and Troubleshooting 7-39
If the following errors persist, call your HP-authorized service provider. Message 13.x PAPER JAM CLEAR n PAGES or 13.x PAPER JAM CLEAR THE PRINTER 20 MEMORY OVERFLOW DATA LOST Description Paper is jammed in the printer or in an input/output accessory. Recommended Action Remove jammed paper from under the toner cartridge, the right door, the front door, the left door, and in any installed input/output accessories. Press [Select *] to print the transferred data (data loss may result). Then make more memory available in the printer by removing some fonts, macros, or any other data from memory; simplify the page sent to the printer; or install additional memory. (Note: if AUTO CONTINUE=ON the printer will automatically continue printing when this error occurs.) Press [Select *] to resume printing. (Note: if AUTO CONTINUE=ON the printer will automatically continue printing when this error occurs). You may lose some data. Try to simplify your print job.
The printer received more data from the computer than can fit in its available user memory.
21 PRINT OVERRUN DATA LOST
The data (dense text, rules, raster or vector graphics) sent to the printer was too complex.
7-40 Maintenance and Troubleshooting
If the following errors persist, call your HP-authorized service provider. Message 22 PARALLEL IO ERROR CHECK SETUP Description For Bi-Tronics parallel (PAR) configuration, the computer and printer are not communicating because of improper signal protocols. Check both computer and printer I/O settings. For the MIO error, this is an I/O buffer overrun error. Recommended Action Press [Select *] to clear the error message (data will be lost). If the error continues, call your authorized HP dealer or service representative. For the parallel configuration, check for loose cable; use a high-quality cable (see Chapter 1 for HP cable part numbers and information). (Note: some non-HP parallel cables may be missing pin connections.) If you are using an I/O other than the Bi-Tronics parallel I/O, see the manual for that device or contact your dealer. If you are on a network, contact your network administrator. If problem persists, power-cycle the printer. These error messages are saved in the Error Log. 30.x.y DISK NOT INITIALIZED The printer hard disk is not initialized. Press [Select *] to continue. Use the Windows based HP JetAdmin utility or the Macintosh based HP LaserJet Utility to initialize the disk. Press [Select *] to continue. Turn power off and verify that the ribbon cable that connects the disk to the printer is securely fastened. If the control panel message continues to be displayed, the disk drive needs to be replaced.

IEC 801-2:1991/prEN55024-2:1992-3 kV CD, 8 kV AD IEC 801-3:1984/prEN55024-3:1991-3 V/m IEC 801-4:1988/prEN55024-4:1992-0.5kV Signal Lines, 1kV Power Lines
Supplementary Information: The product herewith complies with the requirements of the Low Voltage Directive 73/23/EEC and the EMC Directive 89/336/EEC, and carries the CE marking accordingly.
The product was tested in a typical configuration with Hewlett-Packard Personal Computer and Test Systems. * This printer contains Local Area Network (LAN) options. When the interface cable is attached to either of the IEEE 802.3 connectors, the printer meets the requirements of EN55022 Class A. Office of Quality Manager Boise, Idaho USA August 1, 1995
European Contact: Your local Hewlett-Packard Sales and Service Office or Hewlett-Packard GmbH, Department ZQ / Standards Europe, Herrenberger Strae 130, D-7030 Bblingen (FAX: + 49-7031-14-3143)

A-8 Specifications

PCL Printer Commands (Escape Sequences)
Most software applications do not require you to enter printer commands. See your computer and software documentation to find the method to use for entering printer commands. PCL printer commands tell the printer which tasks to perform or which fonts to use. This appendix is not intended to provide complete information about PCL commands, but only to provide a quick reference for users who are already familiar with PCL command structure.
Table B-3 contains frequently used PCL commands. For a complete listing and explanation of how to form PCL, HP-GL/2, and PJL commands, see the PCL/PJL Technical Reference Package, which is described in Supplementary Documents at the front of this manual. (See Chapter 7, Calling for Help, for ordering information.)
PCL Printer Command Syntax
Before using printer commands, note these characters: Lowercase l: l Uppercase O: O Number 0: 0

Number one: 1

Many printer commands use the lowercase letter l (l) and the number one (1), or the uppercase letter O (O) and the number zero (0). These characters may not appear on your screen as shown here. You must use the exact character and case specified for PCL printer commands.
PCL Printer Commands (Escape Sequences) B-1
Figure B-1 shows the elements of a typical printer command (in this instance a command for page orientation).

Figure B-1

Printer Command Syntax 1. 2. 3. 4. Escape character (begins escape sequence) Command category Value field (contains both alpha and numeric characters) Uppercase letter (terminates escape sequence)

Escape Character

Printer commands always begin with the escape character (?). Table B-1 shows the escape character for various software applications. (The keyboard [Esc] key does not produce the escape character.) Check your software manual for additional information.

Exclusions

The warranty on your HP LaserJet 5Si/5Si MX/5Si NX shall not apply to defects resulting from:
Improper or inadequate maintenance by customer. Customer supplied software or interfacing. Unauthorized modification or misuse. Operation outside of the environmental specifications for the product. Operation of non-supported printing media. Duty cycle abuse (see note on page D-3). Operating the printer from a mechanical switch box without a designated surge protector. Improper site preparation and maintenance. Failure to perform key operator maintenance every 350,000 pages. Use of non-HP toner cartridges (see the note following), memory boards or interface boards.
D-2 Warranty and Software License
The use of a non-HP or refilled toner cartridge alone does not affect either your warranty or any maintenance contract you may have purchased. However, if an HP LaserJet printer failure or damage is found to be attributable directly to the use of a non-HP toner cartridge, HP will not repair the printer free-of-charge. In this case, standard time and materials charges will be applied to service your printer for that particular failure or damage. Operation of the printer beyond the limit of its duty cycle (printing greater than the equivalent of 100,000 single-sided pages per month) shall be deemed printer abuse and all repairs thereafter will be billed on a time and materials basis. If you are using a mechanical switch box, ensure that it is equipped with a surge protector. Damage to your printer could occur from the use of unprotected mechanical switch boxes.

Caution

Warranty Limitations
The warranty set forth above is exclusive and no other warranty, whether written or oral, is expressed or implied. Hewlett-Packard specifically disclaims the implied warranties of merchantability and fitness for a particular purpose.
Service During the Warranty Period
If your hardware should fail during the warranty period, contact an authorized HP dealer or an HP Customer Service Center.
Service After the Warranty Period
If your hardware fails after the warranty period, contact an authorized HP dealer or your local Customer Service Center. If you have an HP Maintenance Agreement, request service under your agreement.

INDEX-1

HP FIRST 7-48 Canada 7-48 European countries 7-49 United States 7-48 HP service support D-1 humidity A-3 I I/O buffering, improving performance 2-4 paper stop, adjusting 5-26 input/output 1-6 Input/Output (IO Menu 4-28 italics i-iii J jam recovery, PostScript 4-27 jams, paper 7-23 Japan VCCI statement A-5 JetDirect interfaces part numbers 1-15 JetPrint network utility 3-6 Job Cancel 5-35 Job Control menu 4-9 K key face i-iii keys, control panel 4-3 L labels media use guidelines 5-6 specifications 5-3 landscape orientation 5-18 laser regulations A-6 safety A-6 laser safety statement A-6 laser statement for Finland A-7 license, software D-5 line draw characters B-3 Lotus 1-2-3 B-2 - B-3 setup strings B-3 M Macintosh utilities Bitmapped Screen fonts 3-9 HP LaserJet Utility 3-8 Mailbox with Stapler 5-22 modes 5-22 selecting from Control Panel 5-28 selecting through software 5-27 maintenance after warranty D-3 agreements D-1 during warranty D-3 manual conventions i-iii manual feed troubleshooting 7-16 manual feed, envelopes 5-18 media loading into Tray 1 5-9 sizes 5-3 specifications 5-3
memory expansion 2-1 requirements 2-3 memory management 1-5 Menu Map example 4-14 menus Configuration 4-24 control panel 4-7 Job Control 4-9 PCL 4-23 PostScript 4-27 Print Quality 4-26 selecting 4-7 Test 4-10 Tray 4-8 message types 4-4 messages control panel 7-36 error 7-36 printer 7-36, 7-40 MIO, part numbers 1-15 modes changing 5-22 control panel messages 5-23 job separation 5-22 mailbox 5-22 stacking 5-22 Mopier Printing System 3-1 environments 3-1 network operating systems 3-1 MP Tray, printing envelopes 5-17 Multi-Bin Mailbox clearing 7-32 width measurement A-3 N networks HP JetPrint utility 3-6 interfaces part numbers 1-15 troubleshooting 7-11 O offline 7-36 On Line 7-36 on/off switch, location 1-11 optional Printer Hard Disk, location 1-12 options part numbers 1-15 orientation of media landscape 5-18 portrait 4-8 output bins 5-22 illustrated 5-24 ozone emission A-6 ozone emission statement A-6 P packing guidelines D-4 paper heavy stock 5-3 heavy weight 5-2 loading into Tray 1 5-9 loading into Tray 2 or Tray 3
5-11 media use guidelines 5-6 minimum size 5-3 sizes 5-3 specifications 5-3 weights 5-3 paper handling 1-4 envelopes 5-2 Paper Handling Controller Board 1-12 paper jams 2000-Sheet Input Tray 7-33 avoiding 5-9 clearing 7-23, 7-25 Envelope Feeder 7-34 front door (duplex area) 7-29 left door (fuser area) 7-30 locations 7-24 Multi-Bin Mailbox with Stapler 7-32 repeated 7-35 right door 7-27 top cover 7-28 top output bin 7-26 tray 1 7-26 Trays 2 and 3 7-31 paper output bins left 5-25 paper source 5-2 Paper Specification Guide i-iv paper Tray 1 loading envelopes 5-17 loading media 5-9 selecting paper size 5-21 paper trays loading envelopes in Tray 1 5-17 loading Tray 2 or Tray 3 5-11 loading Tray 4 5-14 location 1-11 paper trays 1, 2, and 3 5-8 paper type, setting through control panel 4-9 parallel cable 1-15 PCL commands B-1 Configuration Page 4-12 font list 4-18 font selection B-3 Menu Map page 4-14 printer commands B-4 PCL fonts 1-7 PCL Menu 4-23 phone numbers Customer Support Center 7-48 European CSC 7-49 HP FIRST - European countries 7-49 HP FIRST - US/Canada 7-48 obtaining printer drivers 7-48 software application notes 7-48 United States CSC 7-48

INDEX-3

toner cartridge life 7-3 cleaning TONER LOW message 7-5 extending toner life 6-3 redistributing in cartridge 7-4 reducing using EconoMode 6-9 saving 1-6 toner cartridge 7-3 installation 7-3 maintenance 7-3 non-HP, use 7-3 temperature 6-5 TONER LOW message 7-4 - 7-5 top cover, location 1-11 transparencies media use guidelines 5-6 specifications 5-3 tray locking 4-9, 5-21 Tray Menu 4-8
troubleshooting 7-1 2000-Sheet Input Tray 7-17 cancel a job 5-35 check list 7-8, 7-10 - 7-12, 7-14, 7-16 cleaning tasks 7-1 faster printing 7-12 formatting 7-14 manual feed 7-16 messages 7-33, 7-40 networks 7-11 PostScript 7-22 print quality 6-6 - 6-8 Printer Hard Disk 7-19 SIMM boards 7-20 SIMM error messages 7-21 SIMM validation error messages 7-21 two-sided printing 5-33 typefaces PCL selection B-3 selection B-3
V VCCI statement A-5 ventilation A-1 vertical transfer door 7-24 voltage A-3 voltage, conformity A-8 W warranty D-2 exclusions D-2 limitations D-3 limited D-2 printing use limitations D-3 repacking guidelines D-4 service after D-3 service during D-3 weight, printer A-3 Windows drivers definition 3-3 Print Manager 5-35 Word, Microsoft B-2 WordPerfect B-2

4-INDEX