HP LaserJet 5P / 5MP Printer (C3150A / C3155A)

Service Supplement

HP LaserJet 5P / 5MP

Printer

(C3150A / C3155A)

© Copyright Hewlett-

Packard Company 1995

All Rights Reserved. Reproduction, adaptation, or translation without prior written permission is prohibited, except as allowed under the copyright laws.

Publication number

C3150-90002

First edition, May 1995

Printed in USA

Warranty

The information contained in this document is subject to change without notice.

Hewlett-Packard makes no warranty of any kind with regard to this material, including, but not limited to, the implied warranties or merchantability and fitness for a particular purpose.

Hewlett-Packard shall not be liable for errors contained herein or for incidental or consequential damaged in connection with the furnishing, performance, or use of this material.

WARNING

Electrical Shock Hazard

To avoid electrical shock, use only supplied power cords and connect only to properly grounded (3-hole) wall outlets.

Hewlett-Packard Company

11311 Chinden Boulevard

Boise, Idaho 83714

Conventions

This manual uses the following conventions:

Color is used to emphasize items which are important to the material under discussion.

The names of major printer parts and assemblies are Capitalized.

Bold is used for emphasis, particularly in situations where i t ali c type would be confusing.

I t ali c type is used to indicate related documents or emphasis.

COMPUTER type indicates text as seen on a computer monitor.

N ot e

CAU T ION

Notes contain important information set off from the text.

Caution messages alert you to the possibility of damage to equipment or loss of data.

WARN IN G!

Warning messages alert you to the possibility of personal injury.

i

ii

Contents

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Product Information . . . . . . . . . . . . . . . . . . . . . . 3

Key Printer Locations and Parts. . . . . . . . . . . . . . . . 4

Model and Serial Numbers . . . . . . . . . . . . . . . . . . 5

Product Specifications . . . . . . . . . . . . . . . . . . . . 6

Documentation and Software . . . . . . . . . . . . . . . . 8

Documentation . . . . . . . . . . . . . . . . . . . . . . . . . 8

Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

New Product Features . . . . . . . . . . . . . . . . . . . . . 10

The HP LaserJet 5P/5MP Status Panel . . . . . . . . . . . 10

The GO and RESET Buttons . . . . . . . . . . . . . . . . . 10

The Status Lights . . . . . . . . . . . . . . . . . . . . . . . 11

Common LED patterns . . . . . . . . . . . . . . . . . . . . 12

Paper Movement Overview . . . . . . . . . . . . . . . . . . 16

Infrared Communication . . . . . . . . . . . . . . . . . . . 18

To Print Using the Infrared Port . . . . . . . . . . . . . . . 20

Troubleshooting IR Printing Problems . . . . . . . . . . . . 22

Interface Connections . . . . . . . . . . . . . . . . . . . . . 25

The Parallel Printer Interfaces . . . . . . . . . . . . . . . . 26

Resource Saving . . . . . . . . . . . . . . . . . . . . . . . . 27

I/O Buffering . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Service Mode, PJL Defaults . . . . . . . . . . . . . . . . . 30

Test Pages and Resets . . . . . . . . . . . . . . . . . . . . . 32

Printing a Self-Test Page . . . . . . . . . . . . . . . . . . . 33

Life Expectancy of Consumables . . . . . . . . . . . . . . 36

Removal and Replacement . . . . . . . . . . . . . . . . . . 37

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Required Tools . . . . . . . . . . . . . . . . . . . . . . . . . 38

Removing the Power Door . . . . . . . . . . . . . . . . . . . 39

Removing the I/O Cover . . . . . . . . . . . . . . . . . . . . 39

Removing the Left Side Cover . . . . . . . . . . . . . . . . . 40

Removing the Top Cover . . . . . . . . . . . . . . . . . . . . 41

Removing the Tray 1 Pickup Assembly . . . . . . . . . . . . 44

Removing the Formatter Board and Shield . . . . . . . . . 47

Removing the Fusing Assembly . . . . . . . . . . . . . . . . 50

Removing the DC Controller Assemblies . . . . . . . . . . . 51

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . 55

Continuable Data Error Light Patterns . . . . . . . . . . . 56

Error 53 -- Memory/SIMM Errors . . . . . . . . . . . . . . . 58

Fatal/Service Errors . . . . . . . . . . . . . . . . . . . . . . 60

Infrared Port Not Responding . . . . . . . . . . . . . . . . . 65

Using the Infrared Test Tool . . . . . . . . . . . . . . . . . 66

Parts and Diagrams . . . . . . . . . . . . . . . . . . . . . . 68

Ordering Parts . . . . . . . . . . . . . . . . . . . . . . . . 68

Ordering Consumables . . . . . . . . . . . . . . . . . . . . 69 iii

Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . 86

Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87 iv

HP LaserJet 5P Printer

Service Supplement

2

HP LaserJet 5P Printer Service Supplement

Overview

Overview

The HP LaserJet 5P and 5MP printers (HP Product Numbers

C3150A and C3155A) have many service and repair processes in common with their predecessors, the HP LaserJet 4L/4ML and

4P/4MP printers. These processes are documented in the

C ombined Service Manual for the HP LaserJet 4L/4ML

(C2003A/C2015A) HP LaserJet 4P/4MP (C2005A/C2040A). The purpose of this appendix is to provide supplemental service information that is unique to the HP LaserJet 5P and 5MP printers.


Product Information

Product Information

Printer Features

Features

Print Speed

Text & Graphics Resolution

Printer Languages

HP LaserJet 5P

HP LaserJet 5MP

6 PPM

600 dpi; plus Resolution Enhancement Technology (REt)

Monthly Usage (pages)

Memory:

Tray 1 Capacity

Tray 2 Capacity

Output Tray capacity

Internal Typefaces

HP LaserJet 5P

LaserJet 5MP

Standard Interfaces

Enhanced PCL 5

PostScript Level 2

Enhanced PCL 5

1

Up to 12,000

2MByte on-board standard memory

100

250

100

45 PCL

Power Control

NVRAM

Status Panel

Economode (toner saving)

Min. Paper Size

(using flat paper path)

1

SIMM includes 1 MByte additional memory.

45 PCL, 35 PS

2 Parallel (B connector, C connector)

1 LocalTalk

1 SIR

Power switch

Yes

2 Buttons

5 LEDs yes

3 x 5 inch

(76 x 127mm)

3


Product Information

Key Printer Locations and Parts.

Figure 1 Front View

1. Status Panel

2. Top Output Tray

3. Tray 1 - MultiPurpose Tray

4. Tray 2 - 250-sheet Paper Cassette

5. Infrared Port and Status Light

6. Removable Side Panel

7. Interface Cable Door

Figure 2 Rear View

1. Top Cover Release Button

2. Rear Output Tray

4

3. Serial Number Label

4. Power Cable Door

5. On/Off Button


Product Information

Model and Serial Numbers

The model number and serial numbers are listed on identification labels located on the rear of the printer. The model number is alphanumeric, such as C3150A for the HP LaserJet 5P printer and

C3155A for the HP LaserJet 5MP printer.

The serial number contains information about the Country of

Origin, the Revision Level, the Production Code, and production number of the printer.

The rear labels also contain power rating and regulatory information as shown in Figure 3.

Figure 3 Sample Model and Serial Number Labels

5


Product Specifications


Dimensions

Width

Depth

Height

Weight

15.79 in. (401 mm)

17.38 in. (441.7mm)

7.92 in. (201.1mm)

15.4 lbs. (7 kg)

Figure 4. Location Space Requirements

6



Electrical Specifications

Power Requirements 100/120V (+/- 10%) 50/60Hz (+/- 2Hz)

127 Volts NOM

Power Consumption (typical for HP

LaserJet 5P and HP LaserJet 5MP)

During printing - 165 W (average)

Minimum recommended circuit capacity

During standby – 5W (instant power save)

During power save mode - 5 W

4 Amps

220/240V (+/- 10%) 50 Hz (+/- 2Hz)

During printing - 165 W (average)

During standby – 5W (instant power save)

During power save mode - 5 W

1.8 Amps

Environmental Specifications

Item

Temperature

(printer and toner cartridge)

Operating Printing

59° to 89° F (15° to 32.5° C)

Relative humidity 10% to 80%

Storage/Standby

-4° to 104° F (-20° to 40° C)

10% to 90%

Acoustic Emissions (Per ISO 9296)

Operator Position Bystander (1m)

Printing

Power Save*

L pAm

52dB(A)

L pAm

<22dB(A)

L pAm

46dB(A)

L pAm

<22dB(A)

*In this mode, the printer is essentially quiet.

Sound Power

L

WAd

6.0 bels(A)

L

WAd

<3.6 bels(A)

7

8


Documentation and Software


Documentation

You can order the documents listed below. There is a charge for some documents.

Table 1. Related Documentation

Title

The PCL/PJL Technical Reference Package contains the following documents*

PCL5 Printer Language Technical Reference Manual.

Explains the PCL 5 printer language for experienced users and programmers.

Printer Job Language Technical Reference Manual.

Explains HP’s Printer Job Language (PJL) for experienced users and programmers.

PCL/PJL Technical Quick Reference Guide.

PCL Comparison Guide.

Describes the different implementation of commands and extensions across the printer family supporting PJL and PCL 5.

HP LaserJet 5P/5MP Printer User’s Manual

HP LaserJet 5MP Macintosh Notes* (included with HPLaserJet

5MP Printer and optional Adobe PostScript Level 2 SIMM)

HP LaserJet Printer Family Paper Specification Guide*

Part Number

5961-0601

C3150-90901

C3155-90901

5002-1801

* This item must be ordered through HP Parts Direct Ordering, (800) 227-

8164. Outside the U.S., see the ordering information in "Parts and Diagrams" later in this chapter.



Software

The following software driver diskettes are shipped with the

C3150A HP LaserJet 5P printer:

•

The

H P L as erJet 5P DOS Utilities and DOS Printer Drivers diskette. The DOS utilities include a Status Monitor and

Remote Control Panel. The DOS printer drivers include

WordPerfect (versions 5.1, 5.1+, and 6.0) and Lotus 1-2-3

(versions 2.3, 2.4, 3.1 and 3.4).

•

The H P L as erJet Printing System for Microsoft Windows 3.1

and 3.11 contains the PCL drivers and the HP FontSmart utility for font management .

The following software driver diskettes are shipped with the

C3155A HP LaserJet 5MP printer:

•

T h e HP LaserJet 5MP Printer Software for Macintosh. Supports

System 6.07 to 7.5.

•

The

P ostScript Printer Software for Windows 3.1 and 3.11

includes the PostScript drivers and the HP FontSmart utility for font management.

9


New Product Features


The HP LaserJet 5P/5MP Status Panel

This HP LaserJet printer has been designed to be controlled mainly by software. However, some simple functions are also available from the status panel. You also receive status information about the operation of the IrDA-compatible infrared

(IR) port from the status light just above the port (for more information, see “To Print Using the Infrared Port,” later in this appendix).

1

2

Figure 5 Status Panel Buttons and Lights

1. RESET button

2.

ERROR status light

3. TRAY 1 status light

4. TRAY 2 status light

5. DATA status light

6. READY status light

7. GO button

8. IR port status light

The Status Panel consists of two buttons you use to complete certain tasks and five status lights that indicate the status of the printer (see Figure 5).

The GO and RESET Buttons

The printer has two buttons: GO and RESET.

10



Pressing the GO button:

•

Tells the printer to resume printing.

•

Prints a demo page. The printer must be in Ready Mode (the green Ready light on steady).

•

Prints a self-test page when pressed simultaneously with the

RESET button. The printer must be in Ready Mode (the green

Ready light on steady).

Pressing the RESET button:

•

Clears incomplete print jobs from the printer’s memory.

•

Clears errors.

•

Removes all temporary fonts and macros.

•

Returns all printer settings to the default values that you selected.

The Status Lights

There are five Status Panel lights on the printer:

•

ERROR

•

TRAY 1

•

TRAY 2

•

DATA

•

READY

These lights indicate the current status of the printer by displaying an amber or a green hue and flashing individually or sequentially as a group (cascading).

The status light above the IR port indicates the current status of the IR port by displaying a green hue. This status light comes on only when the IR port is being used—the Status Panel lights operate the same for the IR port as they do for any other port on the printer.

ERROR (amber)

Indicates an error condition, such as a paper jam, missing toner cartridge, or the printer’s top cover is open.

11



TRAY 1 (amber)

Tray 1 (the MP tray) is empty. Add paper to Tray 1. When the

Tray 1 light is flashing, the printer is waiting for paper to be manually fed into Tray 1. Once you have inserted the paper, you must press the GO button to feed the paper.

TRAY 2 (amber)

Tray 2 (the Paper Cassette) is empty. Add paper to Tray 2.

DATA (green)

When the Data light is on, the printer is printing. When the Ready light and the Data light are both on, the printer still has unprinted data in its memory. Either press GO to print the remaining data, or press RESET to clear the data from the printer’s memory.

READY (green)

The printer is in Ready Mode when the Ready light is on. If the light is flashing, the printer is currently receiving data or in the process of printing.

IR Port Status Light (green)

If this light is on, it indicates that an infrared (IR) connection has been established.

Common LED patterns

The chart following shows the light patterns for normal HP

LaserJet 5P/5MP printer states.

12



Light Pattern Description

The printer is in Ready Mode and is ready to print. Press the GO button to print a demo page. Press the GO and RESET buttons to print a self-test page.

The printer has received data. If the Ready light is flashing, the printer is processing the data—wait for the next page to be printed. If the Data light and the Ready light are both on for an extended period of time (the Ready light does not begin to flash), press the GO button to print the next page. A document or page may take a long time to print if, for example, the document or page contains complex text or graphics.

The printer is warming up or resetting after you have pressed the RESET button. The lights on the Status Panel “cascade” (each light turns on and off sequentially) until the printer is ready to print.

Tray 1 (the MP Tray) is empty. Add paper to the tray. If the Tray 1 light is flashing, the printer is waiting for paper to be manually fed into Tray 1. Once you have inserted the paper, you must press the GO button to feed the paper.

13




Tray 2 (the Paper Cassette) is empty. Add paper to the tray.

A data error has occurred. Press the GO button to continue printing (some data may be lost). For more information, see “Data Error

Light Patterns,” later in this appendix.

A SIMM error has occurred. Make sure your

SIMM is installed correctly. Replace the SIMM that caused the error. Or press the GO button on the printer to continue without configuring the SIMM that caused the error. If the SIMM has more than one bank of memory, the good banks will be automatically configured.

A recoverable error has occurred, such as a paper jam, the top cover is open, or the toner cartridge is missing.

14




A fatal error has occurred. Turn the printer off and then back on. If the same light pattern reappears, turn the printer off again and leave it off for about 10 minutes, then turn it back on.

If the same light pattern reappears. refer to the discussion of Fatal Errors in "Troubleshooting."

When the IR port status light is on, a connection has been established. If you are printing to the IR port and the status light does not come on, make sure the printer is in Ready

Mode and that the IR port you are printing from is within range of operation and is IrDAcompliant. If you continue to have trouble printing, refer to the “Infrared Port Not

Responding” table, later in this section.

15



Paper Movement Overview

The paper feed system picks print media automatically from the paper cassette or accepts it from the manual feed slot and delivers it to the image formation system at precisely the right time. The system then feeds the media to the fusing station, and delivers the finished product to the output position, either the face-down output tray on top of the printer, or through the face-up delivery slot at the rear of the printer. The output path is user-selectable by opening the rear output tray.

Figure 6 shows the possible paper paths and locations of the various solenoids, photosensors and rollers.

16



D C C o ntroller P C A

PS 3

Figure 6 HP LaserJet 5P Printer Paper Path

PS1 Input Paper Sensor

PS2 Tray 2 Paper Out Sensor

PS3 Exit Paper Sensor

PS4 Winding Paper Sensor

PS5 Tray 1 Paper Out Sensor

Input Paper Sensor (PS1) Positions:

A = Manual Feed Sense Position

B = Registration Sense Position

C = TOP Sense Position

SL1 Tray 2 Solenoid

SL2 Tray 1 Solenoid

17



Infrared Communication

The HP LaserJet 5P and 5MP printers are equipped with an

Infrared Datalink Association (IrDA) compliant port. The IrDA specification allows "wireless" transmission of print data between a wide variety of hosts (primary) and peripheral (secondary) devices. A primary device -- such as a PC or laptop computer -- is capable of reading and writing data to another primary device or writing to a secondary device, such as a printer. Secondary devices are read-only; they cannot initiate its own communication, and can only respond to a host command when properly addressed.

The IrDA protocol uses a transceiver chip in both devices to send and receive data packets. The packets are checked for validity, and a response is sent by the secondary device indicating whether the packets were complete or in error.

The IrDA protocol is contained in three layers:

•

The physical electronics are the hardware elements in each device for sending and receiving the data.

•

The Link Access Protocol (LAP) layer controls the physical layer, packetizes/unpacketizes data, and sets transmission rates.

•

The Link Management Protocol (LMP) layer routes data to and from the host operating system (DOS/Windows).

The data flow is shown in Figure 7.

The LAP and LMP layers can reside in either firmware, software, or a combination of both. There are different LAP and LMP protocols for primary and secondary devices.

The HP LaserJet 5P printer has the complete secondary protocol, and any host trying to communicate via the infrared (IR) port must have the complete primary protocol installed. T h e primary protocol s oftware is the responsibility of the host supplier. It is not provided b y Hewlett-Packard Company with the printer.

IrDA communications can be obtained either via an internal IR port or an external IR accessory. Several manufacturers offer complete accessory upgrades for both host and peripheral devices.

18


New Product Features prim a ry d e vic e

A p plic a tio n

G DI

Ptr D VR

D DI

IRLMP

IRLAP

IR Physic a l

Tr a nsmitt er

AS C II D a t a

Win d o ws

Syst e m

St a n d a rd Win d o ws

LJ Print er Driv er (SW)

IR Re dire c tor

(Softw a re )

IR Driv er P a c k e tiz es

D a t a (SW or FW)

Proto c ol Seri a liz er

IR C hip

D a t a P a c k e ts & Q u eries

Re c eiv er

Resp o nses

Form a tt er

I/ O Buff er

IRLMP

IRLAP

IR Physic a l

Re c eiv er

Tr a nsmitt er se c o n d a ry d e vic e

AS C II to

R a st er D a t a

AS C II

D a t a Buff er

Un p a c ks D a t a

C h e c ks P a c k e ts

Proto c ol

D eseri a liz er

IR C hip

Figure 7. IR Data Flow.

System Requirements

•

Hardware

•

Both the primary and secondary devices must be equipped with an IrDA-compliant IR component. Older, non-IrDAcompliant devices may not be compatible with the HP LaserJet

5P/MP printers.

•

Software

•

The primary device must be loaded during boot-up with software provided by the manufacturer for infrared operation.

•

The primary device must be properly configured with an infrared

COM port, IRQ level, and base address value.

•

The infrared port must be installed and selected in the Printers section of the Windows Control Panel.

19



To Print Using the Infrared Port

The infrared (IR) port on your HP LaserJet 5P or 5MP printer is located on the lower front left corner of the printer (Figure 8). This port is compliant with the specifications determined by the

Infrared Data Association (IrDA). Just above the port is a status light that indicates when the port is activated. To use the IR port, you need to use a portable device that also includes an

IrDA-compliant IR port and be within the range of operation (see

Figure 9).

Figure 8 IrDA Port Location

The IR port is compatible with a wide variety of IrDA-compliant portable devices; however, the method for printing will vary depending on the type of device and the operating system in use.

Refer to the instruction manual for your portable equipment for specific instructions on printing from that device.

The IR port works by receiving data similarly to a serial port, however, without a cable and operates at speeds of up to 115 k bits per second. When the IR connection is established, the status light comes on. If the connection is broken or when the print job is complete, the status light goes off.

1. Make sure the printer is in Ready Mode (the Ready light is on).

2. Align your laptop computer (or other portable equipment) that is equipped with an IrDA-compliant IR port within 3 feet

20



(1 m) of the IR port on the printer and at an angle of ±15 degrees to ensure printing (Figure 9).

3. Send the print job. The status light above the IR port turns on

(printing a complex document or using a software print spooler on your PC may delay the time it takes for the IR status light to turn on). If the status light does not turn on, realign the port on your portable equipment with the port on the printer, resend the print job and stay within the range of operation during printing.

4. If you have to move the device, for example, to add paper, make sure you stay within the range of operation to maintain the connection. If the connection is interrupted before your print job is complete, the IR port status light will turn off. You have from 3 to 40 seconds (depending on the host implementation) to correct the interruption and continue the job. In this case, the

IR port status light turns back on.

5. The connection can be permanently broken (interrupted for more than 3 to 40 seconds) if the “sending” IR port is moved out of the range of operation or if anything passes between the two ports to block the transmission, such as a hand or piece of paper, or even direct sunlight. In this case, the job needs to be reprinted.

≤1 Meter

≤ 3 feet

30°

Figure 9 IRDA Port ranges

21



If you still have problems printing, make sure you are using an

IrDA-compliant device and proper software and have selected the proper port for printing. See "Infrared Port Not Responding" on page 65.

N ot e

The IrDA standard for infrared communications represents an emerging technology. Older non-IrDA-compliant portable devices may not be compatible with your HP LaserJet 5P/5MP printer. If you continue to have problems printing using the IR port, contact the manufacturer or dealer where you purchased your portable device to verify compatibility with the IrDA standard, and follow the troubleshooting procedure immediately following.

Troubleshooting IR Printing Problems

IR printing problems may be caused by any of the several system components or by lack of proper configuration. The following checklist will help determine the source of the problem.

6. Verify the user is operating the printer and PC as described in the User’s Manual: less than one meter between devices, and not more than ±15 degrees from direct center.

7. Verify the host PC or laptop and the printer are IrDA-compliant and have the necessary hardware components for IR communication.

8. Verify the IR software has been loaded on the primary device.

(This is system software and should be available from the PC manufacturer.)

9. Verify the host PC or laptop is properly configured. Check the port assignment, the IRQ level, and the base address value.

Check both the DOS AUTOEXEC.BAT and CONFIG.SYS files, and the Windows system configuration.

22



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.

LB

IR Diodes

Test

Connect Pass

Peripheral

Test

Computer

Test

Test Modes

PCL Printer

PostScript Printer

Energy Detect

Test Frame switches

Figure 10 Infrared Test Tool

To test the peripheral device:

1. Put the HP LaserJet 5P in Ready Mode.

2. Press the "Peripheral Test" button on the test tool. The LEDs on the test tool will sequence.

23



If the "PASS" LED lights, the test was successful, indicating that communication with the printer’s IR port is functioning normally.

On HP LaserJet 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 printer’s IR port is not functioning correctly; check the operator’s instructions included with the IR test tool.

To test the host computer:

1. Place the test tool on a table in front of the PC’s 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 printer’s IR port is functioning normally.

If the "TEST" LED goes out and the "PASS" LED fails to light, the host’s IR port is not functioning correctly.

24



Interface Connections

Your HP LaserJet 5P or 5MP printer supports the following interfaces (see Figure 11):

•

Two IEEE-1284–compliant parallel ports at the back of the printer—one large B-type and one small C-type.

•

One LocalTalk port at the back of the printer.

•

One IrDA-compliant infrared port at the front of the printer.

Figure 11 HP LaserJet 5P/5MP Printer Interface Connections

1. LocalTalk cable and connectors.

2. IEEE-1284 parallel cable and large (B-type) printer connector.

3. IEEE-1284 parallel cable and small (C-type) printer connector. (The cable will be stamped as IEEE-1284 compatible.

4. Host PC connector (A-type) (in the future C-type connectors may also be available on host PCs).

Caut ion

Make sure that all power and interface cables on your printer and host computer are properly grounded and in compliance with local electrical codes.

25



The Parallel Printer Interfaces

These interfaces are compliant with IEEE-1284 specifications for

"Compatibility Mode” and “Nibble Mode” or “HP Bi-tronics”. To use advanced interface functions, such as bi-directional communication, the parallel port on your host PC must also be

IEEE-1284 "Nibble Mode" compatible.

The small “C” connector offers IEEE-1284 II (level 2) electrical interfacing, i.e. support for cables up to 10 meter length. The large

"B" connector supports standard cable lengths up to 3 meters.

The parallel interfaces can operate at speeds of up to 2 MBytes per second. Use a high-quality, shielded IEEE-1284 compliant parallel interface cable to insure best performance and support of advanced interface functions such as bi-directional communication.

Compliant cables are marked with “IEEE-1284" on the cable.

Applications such as the Remote Control Panel, Status Monitor, or the Status Window use the printer’s parallel interface to send status information back to the computer (bi-directional communication). This requires a direct connection from the computer to the printer via a local parallel port (for example,

LPT1:, LPT2:). These applications may not work through a network or a switching device.

Connecting to Networks and Switchboxes

Most devices connected between the printer and the host computer prevent the printer from sending data back to the computer.

Therefore, the Remote Control Panel, Status Monitor, and Status

Window may not work with networks, most hardware print spoolers, some software print spoolers, and some switchboxes.

Newer sharing devices are available that fully support status feedback. Check with your supplier on support for bi-directional communication.

Automatic I/O Switching

The printer automatically switches between all interfaces (parallel, infrared, and LocalTalk) when multiple users share the printer.

26



Resource Saving

Resource Saving gives the printer the ability to save certain entities such as permanent soft fonts, macros, symbol sets and user-defined graphics patterns when the printer changes personalities, resolutions or page protect modes. For example, if a user switches the printer from PCL mode to PostScript mode, all

PCL soft fonts and macros are lost.

With resource saving, the HP LaserJet 5P/5MP printer can retain these in memory. When the user switches back to PCL from

PostScript all of the PCL entities would still be resident in the HP

LaserJet 5P/5MP printer. Resource Saving can be changed via software, but can only be accessed when the printer has the

PostScript language installed and a minimum memory configuration of 7 MB.

Resource Saving can be set via software for one of three modes,

AUTO (default), ON, and OFF. Auto configuration sets the

Resource Saving for PCL and Postscript to a minimum value (400

KBytes) for each personality. Setting Resource Saving to ON allows the user to determine how much printer memory will be used for Resource Saving for the PCL personality and the

Postscript personality. The memory can be allocated in 100 KBytes increments. For example, if the user sets the Resource Saving memory size to 200 KBytes, a total of 400 KBytes of memory will be assigned to Resource Saving. 200 KBytes of memory will be used for Postscript Resource Saving and 200 KBytes of memory will be used for PCL Resource Saving. Turning Resource Saving

OFF disables the Resource Saving function and no memory is allocated to Resource Saving.

27



I/O Buffering

I/O buffering allows the user to allocate printer memory to hold the job while it prints, freeing up the host system sooner, like a print spooler. The standard printer has approximately 10 KBytes of memory allocated to I/O buffering and an additional 100 KBytes of memory is assigned to I/O buffering for each MBytes of memory added to the printer.

If the printer has a minimum of 6 MBytes of memory installed, the

I/O buffer size can also be adjusted via software. Three settings exist for the I/O buffer; AUTO (default), ON, and OFF. AUTO sets the printer’s I/O buffer to a minimum value that is determined by the total amount of memory that is resident in the printer. Setting

I/O buffering to ON allows the user to set the I/O buffer size

Setting the I/O buffering to OFF disables I/O buffering .

N ot e

When you change the I/O buffer setting all downloaded resources are deleted.

28



THIS PAGE INTENTIONALLY LEFT BLANK

29


Service Mode, PJL Defaults


The Service Mode should be used only by authorized service personnel. While in Service Mode, you can:

•

Print a Service Mode Self Test.

•

Verify and set the Page Count (the page count also is displayed on the standard self test).

•

Set the Cold Reset Default. (This sets the factory default paper size to either Letter or A4).

•

Set the Demo Page=True/False. Used to remove the Demo Page option from the self test menu.

•

Set the Diagnostic Functions ON or OFF (for software developers use only).

Since the HP LaserJet 5P/5MP printer does not have a front control panel, Service Mode and many configuration tasks are accessible only through software (PJL commands).

The following example shows how to use PJL commands to enter

Service Mode and perform various Service Mode configuration tasks.

N ot e

Text is CASE-sensitive in PJL; enter exactly as shown. The EC symbol stands for the ASCII escape character (ESC or /027). When the PJL code is entered, print the data file (or use the

DOS COPY command to copy it to the printer).

Detailed explanations of PJL commands and their functions can be found in the Printer Job Language Technical Reference Manual

(HP part number 5961-0704).

30



Common PJL Commands

PJL Command Explanation

EC %-12345X@PJL Start PJL job.

@PJL SET SERVICEMODE=HPBOISEID Enter Service Mode

@PJL SET PAGES=0

@PJL SET CRPAPER=LETTER

Set page count [= xxxxx]

Sets cold reset page size [= Letter/A4]

@PJL SET SKIPDEMO=FALSE

@PJL SET DIAGNOSTICS=OFF

@PJL SET SERVICEMODE=EXIT

@PJL DEFAULT PAPER=LETTER

@PJL RESET

EC %-12345X

EC z

EC E

Skips demo/PCL type page [= true/false]

Sets diagnostics [= OFF/ON] (for ISV use)

Exits Service Mode

Selects user paper size default

Performs PJL reset

Exits PJL mode

Prints Self-Test page

Resets the printer.

Other PJL Command examples:

@PJL INITIALIZE

@PJL SET ECONOMODE=ON

@PJL SET PAGEPROTECT=LEGAL

Sets user environment to factory defaults.

Sets Economode

Sets the memory size for page protection to LEGAL paper size.

@PJL SET MANUALFEED=ON

@PJL SET LANG =

FRENCH,

GERMAN...

Sets manual feed mode.

Sets the default display language

1

1

Do not confuse this command with @PJL ENTER LANGUAGE, which sets the printer language to PCL or PostScript.

31



Test Pages and Resets

Test pages, resets, and NVRAM initialization can all be performed by using the GO and RESET buttons on the HP LaserJet 5P/5MP printer status panel. Table 2 shows how to perform these tests and diagnostic functions.

Table 2. Button Functions

FUNCTION ACTION RESULT

Self Test

Continuous

Self Test

Press GO and RESET buttons simultaneously.

Hold GO button m ore than 20 seconds after powering on printer

Reset (all I/O) Press RESET button.

Prints a Self Test page.

Prints continuous self test pages. Press the button to stop printing.

Clears all data from memory, including unprinted data, downloaded fonts and macros.

Allows the printer to recover and continue printing the job.

Continue

Form Feed

NVRAM

Initialization

Service Error

Codes

(Waiting for paper, or continuable error.) Press the GO button.

Press the GO button.

Cold Reset Hold RESET button less than 20 seconds after turning power on.

Hold RESET button on.

m ore than

20 seconds after turning power

Press GO and RESET buttons to display additional code.

Print remaining data in printer memory.

Clears all data from memory, including unprinted data, downloaded fonts and macros.

Resets printer to factory default settings.

Clears all I/O and print configuration information from

NVRAM.

See "Troubleshooting" to determine the problem and solution.

32



Printing a Self-Test Page

You can print a self-test page to get information about your printer’s current settings, options, and print quality. You can use this page to troubleshoot print quality problems and to view current print density and Resolution Enhancement settings so you can adjust them.

You can also print the demo, or demonstration, page to quickly check that the printer is operational.

To print a self-test page:

Simultaneously press the GO and RESET buttons on the printer’s

Status Panel while the printer is in Ready Mode.

Or using the HP LaserJet PCL Windows Printer Driver, under

“Device Option”, select the “Configure Printer” button and choose

“PCL Self-Test Page”.

Or using the Remote Control Panel (in DOS), under “Options” select “Print Test Page” and choose “PCL Self-Test Page”.

Figure 12 shows a sample self-test page. Numbers in the sample self-test page match numbers in the Key to Figure 12 , which follows the illustration. The appearance of the self-test page varies depending on the options currently installed in your printer.

N ot e

The factory default for the self-test page is

English. A PJL command is required to change the self-test language to appear in a language other than English. Refer to the discussion of

PJL commands on page 31

33



Figure 12. HP LaserJet 5P Self-Test Page

34



6

7

1

Item

Key to Figure 12. Self-Test Page

Explanation

Printer Options: Lists printer options you can adjust using your printer software (see Appendix F,

“Software Procedures”).

2 Test Pages: Shows test pages you can print from your printer.

3

4

5

PCL Memory Information: Shows the total amount of installed memory. Also indicates the amount of available memory for PCL applications.

LocalTalk Name/Node ID/Network Number: If your printer is connected to a LocalTalk network, shows the network name, node ID for your printer, and the network number.

Formatter Number: Shows serial number of internal electronics board.

RAM size: Shows total installed printer memory.

Page Count: Shows number of pages the printer has printed.

8 Firmware Datecode: Eight-digit date (YYYYMMDD) of formatter firmware.

9 Resolution Enhancement: When resolution is set to 600 dpi, the Resolution Enhancement technology

(REt) block appears here. The REt block illustrates current resolution enhancement (see “Fine-Tuning Print

Quality,” in Chapter 2, “Printing”).

10 I/O Buffering and Resource Saving: Information about the current configuration appears here. If the printer does not have enough memory installed to enable I/O Buffering or Resource Saving, the amount of additional memory needed appears here.

11 Print Pattern: Illustrates print density and quality.

12

Installed Personalities: Shows which printer languages (personalities) are installed.

35


Life Expectancy of Consumables

Life Expectancy of Consumables

Always inspect the components listed in the following table for wear when servicing the printer. Replace these components as needed, based on printer failures or wear, not strictly on usage.

Table 3. Life Expectancy of Consumables

DESCRIPTION

1.

Toner Cartridge

2.

Tray 1 Pickup Roller

3.

Tray 2 Pickup Roller

4.

Separation Pad

PART NO.

C3903A

RG5-2205-000CN

RB1-6332-000CN

RF5-0343-000CN

5.

Transfer Charging Roller RF5-1287-000CN

QTY EST. LIFE

(pages)

1 4000

1

REMARKS

When print becomes faint, shake cartridge to distribute remaining toner.

1 100,000 Replace roller and separation pad together.

1 100,000

1

1

1

1

100,000

100,000

100,000

100,000

Look for glazing and cracks.

Look for glazing and grooves. Replace together with Pickup Roller.

May affect print quality and/or paper jams.

May affect print quality and/or paper jams. Look for marks on rollers.

6.

Fuser Assembly

(115 V, 50/60 Hz)

Fuser Assembly

(220 V, 50 Hz)

7.

Exhaust Fan

RG5-1700-000CN

RG5-1701-000CN

RG5-1801-000CN 1 25,000 hrs.

1

The estimated Toner Cartridge life is based on A4 or letter size prints with an average of 5% toner coverage, and with the density setting at 3.

36


Removal and Replacement


Overview

The removal and replacement procedures for many HP LaserJet

5P printer Field Replaceable Units (FRUs) are identical to the HP

LaserJet 4L and 4P printers. This section describes only those differences unique to the HP LaserJet 5P for removing:

•

Power Door

•

I/O Cover

•

Left Side Cover

•

Top Cover

•

Tray 1 Pickup Assembly

•

Formatter Board Assembly

•

Fuser Assembly

•

DC Controller Assembly

WARN IN G!

Unplug the power cord from the power outlet before attempting to service the printer. If this warning is not followed, severe injury may result.

Never operate or service the printer with the protective cover removed from the

Laser/Scanner Assembly. The reflected beam, although invisible, can damage your eyes.

CAU T ION

The printer contains parts that are electrostatic discharge (ESD) sensitive. Always service printers at an ESD protected workstation.

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 becomes stripped, repair of the screw-hole or replacement of the affected assembly is required.

37



N ot e

Always remove the toner cartridge and the paper cassette from the printer before removing or replacing printer parts.

Required Tools

Refer to page 6-3 of the Combined Service Manual.

A TORX T-10 head screwdriver is needed to remove the formatter shield.

38



Removing the Power Door

The Power Door is located on the right rear of the printer.

1. Ensure the power to the printer is turned OFF.

2. Grasp the power door by the finger slot directly above the power cord, and swing the rear of the door out and forward.

The door easily tilts and lifts out.

3. Unplug the power cord from the printer power socket.

Removing the I/O Cover

The I/O Cover is located to the left rear of the printer.

1. Locate the two release tabs shown in Figure 13. Press the tabs in, and swing the rear of the door out and forward. The door easily lifts away from the printer.

Figure 13 I/O Cover Release Tabs

39



Removing the Left Side Cover

1. Disconnect all I/O cables.

2. Press the Top Cover Release button on the right side of the printer, and open the top cover.

3. Press the removable side panel release latch shown in

Figure 14.

4. Slide the cover forward and pull straight away from the side of the printer.

Figure 14 Left Side Cover Release Latch

40



Removing the Top Cover

1. Remove the toner cartridge and paper cassette if they have not already been removed.

2. Remove the (4) self-tapping printer cover screws (Figure 15).

Figure 15 Removing the Top Cover Screws

3. Grasp the lower left front corner of the top cover, and lift it forward and up.

4. Grasp the lower portion of the right front cover, and pull forward and up.

5. At the rear of the printer, lower the face-up output tray.

41



6. Lift the rear of the printer slightly. Grasp the lower right back corner. With your thumbs, flex the plastic toward you, up, and out. Figure 16 shows this process for the rear right corner.

Repeat the process for the left rear corner.

N ot e

Note the position of the tabs and the catches carefully. This step may require considerable twisting and flexing of the plastic in order to free the release tabs.

Figure 16 Releasing the Back Corner of the Top Cover.

7. Lift the printer cover straight up.

42



Rep l ac emen t

N ot e

When reseating the top cover onto the printer frame, ensure the black paper-out flag in front of Tray 1 is seated in the groove of the Tray 1 lift plate. If not in the groove, it can easily break when the cover is forced into place. Refer to

Figure 17

Figure 17 Paper-Out Flag

43



Removing the Tray 1 Pickup Assembly

1. Remove Tray 1 by opening the tray at a 45° angle and pulling up on the tray (Figure 18).

Figure 18 Removing Tray 1.

2. Unplug the two cables (Callout 2 in Figure 19) by grasping the cables where they attach to the plug and pulling straight back.

3. Route the cables through the right side of the printer chassis and bring them to the front.

4. Remove the 5 screws (callout 1 in Figure 19) from the front of the pickup assembly. (Two screws are adjacent in the lower left corner.)

44



Figure 19 Tray 1 Pickup Assembly Locations.

5. Press the two release tabs on either side of the pickup assembly

(callout 3 in Figure 19) and pull the assembly away from the printer. (The left side release tab is partially hidden from view.

Pressing in on both sides will release the tabs.)

6. Pull the pickup assembly straight out from the back of the printer.

7. To remove the roller from the pickup assembly, grasp the tabs on the right end of the roller and slide it to the right (shown in

Figure 20).

45



Figure 20 Replacing the Pickup Roller

Rep l ac emen t

N ot e

When replacing the pickup assembly roller, hold the shaft from the left side so that the pickup roller shaft and gears will remain in place.

46



Removing the Formatter Board and Shield

1. Remove any installed SIMMs.

N ot e

There are two TORX screws holding the I/O connector in position (Callout 1 in Figure 21).

These are the only two TORX screws in the HP

LaserJet 5P printer. Note also the location of the test print button hole (Callout 2) on the side of the formatter board cover.

Figure 21 TORX Screw Locations.

47



Figure 22 Removing the formatter screws.

2. Remove the (7) screws shown in Figure 22.

3. Pull the formatter board straight from the side of the chassis.

(There will be a slight resistance from the DC Controller interconnect.)

4. Pull the DC controller interconnect out (Figure 23).

5. To separate the formatter PCA from its shield, remove the two screws (refer to callout 1 in Figure 21).

48



Figure 23 Removing the DC Controller Interconnect.

N ot e

RETAIN THE DC CONTROLLER

INTERCONNECT when replacing the DC

Controller Board. The replacement board part number does not include this interconnect.

49



Removing the Fusing Assembly

1. Remove the top cover assemblies.

2. Locate the black plastic fuser cover at the back of the printer.

Press the release tab (callout 1 in Figure 24).

3. Slide the cover all the way to the right.

4. Pull the left end of the strip toward you at a 45° angle.

5. Slide the cover to the left and out of the printer.

6. Remove the four screws (2 self-tapping screws, two machine screws with washers) directly below the fuser assembly.

7. Grasp the fuser by the green plastic handle and pull out from the printer.

Figure 24 Removing the fuser cover.

50



Removing the DC Controller Assemblies

The DC Controller Assembly is located on the bottom of the printer. The PCA is protected by a metal shield assembly, and is mounted to a plastic base. The Formatter PCA and Fusing

Assemblies are connected directly into the DC Controller and must be removed prior to removal of the DC Controller Assembly.

Caut ion

Failure to remove these components before removing the DC Controller will result in printer damage.

1. Remove the printer covers (page 39), Formatter PCA and Shield

(page 48), and Fusing Assemblies (page 50).

2. On the right side, remove the machine screw and washer

(Figure 25) holding the grounding spring in place. (Callout 1 in

Figure 25).

3. Disconnect the two cables to the tray 1 assembly (callout 2 in

Figure 25).

51



Figure 25 Grounding Spring screw location.

4. On the left side, remove the (2) screws that attach the grounding strap to the Gear Train Assembly (see callout 1 in

Figure 6-36 of the Combined Service Manual). Turn the assembly upside-down before proceeding with further steps.

5. Remove the (5) self-tapping screws and the (1) machine screw with star washer from the bottom of the DC Controller

Assembly. (See callouts 2 and 3 in Figure 6-36 in the Combined

Service Manual.)

6. Lift the DC Controller Assembly away from the printer frame.

52



N ot e

The PS1 Input Sensor Arm may come loose and fall out when you remove the DC Controller

Assembly. See Figure 6-51 in the Combined

Service Manual for re-installation.

7. Remove the metal backing plate from the DC Controller

Assembly (see pages 6-43 and 6-44 in the Combined Service

Manual for this procedure.)

8. Disconnect Tray 1 Interconnect PCA (callout 2 in Figure 26) and cable 302 (callout 1 in Figure 26) from the DC Controller

PCA.

Caut ion

Remove the Tray 1 Interconnect PCA carefully; it can easily be broken when separating it from the black plastic cover.

N ot e

The Tray 1 Interconnect PCA and cable must also be retained when replacing the DC

Controller Board. The part number for the DC

Controller Board does not include a replacement

PCA and cable. This cable can be directly pulled from the connector no releases are necessary.

53



Figure 26 Tray 1 Interconnect PCA and Cable 302

54


Troubleshooting

Troubleshooting

The troubleshooting process for the HP LaserJet 5P/5MP printer has two key differences from the 4L/4ML printer:

•

Different error light patterns (5 LEDs instead of 4).

•

Infrared port troubleshooting.

This section provides a list and explanation of the error LED patterns and instructions on troubleshooting the infrared port

55


Troubleshooting

Continuable Data Error Light Patterns

Possible data error light patterns are listed in the first column of the following table. If the Error and Data lights on the Status

Panel are lit, simultaneously press the GO and RESET buttons on the printer to display a secondary light pattern. This secondary light pattern, or data error light pattern, will more precisely describe the problem. Where more than one data error light pattern is possible, corresponding computer messages are listed in the second column.

Data Error

Light Pattern

Computer

Message

20 MEM

OVERFLOW

Description Recommended

Action

Too much data, or data too complex.

Turn Page Protection ON or to AUTO (can be set within the Remote Control

Panel).

2. Add optional memory.

3. Reduce the complexity of the print job.

Press

GO

to resume printing.

21 PRINT

OVERRUN

22 IO ERROR

The computer and printer are not communicating because of improper signal protocols. Indicates a loose cable connection or a bad or poor quality cable.

Reseat the cable and make sure you are using a high-quality cable

56


Troubleshooting

Data Error

Light Pattern

Computer

Message

40 ERROR

Description Recommended

Action

Indicates an abnormal connection break occurred while transferring data from the computer.

Press

GO

on the printer to clear the error message.

41 ERROR

A temporary error occurred while printing.

This error most commonly occurs when the printer picks two sheets of paper at once. The page containing the error is reprinted automatically.

(first two light sequences)

Remove the page from the output tray and press

GO on the printer

51/52 ERROR (first and second light sequence)The printer detected a temporary error condition.

Turn the printer off then on. If the problem persists replace the laser scanner assembly.

55 ERROR

68 SERVICE or 68

READY/SERVICE

(third light sequence)

The printer detected a temporary error condition

The printer’s nonvolatile memory (NVRAM) is full.

Turn the printer off then back on. If problem persists, replace the DC

Controller. If the problem still continues, replace the formatter PCA.

Press

GO

on the printer to clear the error message. If problem persists,

1. Perform NVRAM

Reset to clear NVRAM

(hold down the RESET button for more than 20 seconds during power on.

2. Replace the formatter

PCA.

57


Troubleshooting

Error 53 -- Memory/SIMM Errors

Error 53 is indicated by a combination of the Error LED and either

Tray LED, on and steady. More detail about the error is found by pressing the GO and RESET buttons simultaneously, which causes a secondary sequence of light patterns. These secondary patterns form a binary representation of the exact hardware type, device and error number in the form 53-XY-ZZ as shown in Table 4.

Table 4. Memory Error Codes

X-Hardware

Type

0: ROM

1: RAM

Y-Hardware Device

0: On board RAM/ROM

1: SIMM slot 1

2: SIMM slot 2

3: SIMM slot 3

ZZ - Error Number

00: Unsupported memory

01: Unrecognized memory

03: Unsupported memory size

04: Invalid SIMM speed

05: SIMM reporting information incorrectly

06: SIMM address conflict

07: SIMM address conflict

Figure 27 explains how to read the light sequences. The initial sequence (Part 1) shows that ERROR 53 can be indicated by two different light sequences, depending on the X value: ROM (x =0) or in RAM (x =1) . Pressing GO and RESET together produces a secondary light pattern, which reveals the Y- and ZZ- values, which complete the error code (Part II) . The binary Y value is read from the top two LEDS; the binary Z value is read from the lower three LEDS. Part III of Figure 27 shows the binary values of the different light combinations.

58


Troubleshooting

Figure -27 Secondary Light Patterns

59


Troubleshooting

Fatal/Service Errors

The following tables show fatal/service errors, which are not continuable; no further operation of the printer will occur until corrective action is taken.

Table 5. Fuser Malfunction

LED Display ERROR CODE

50 Fuser Malfunction

Description and Recommendation

1. Remove power to the printer for 10 minutes.

If this doesn’t clear the error:

2. Perform the Fuser Checks shown in Table

C-6.

3. Check the Fuses (FU101 and FU201) on the

DC Controller PCA. Replace if faulty.

3. Replace the DC Controller PCA.

Table 6. Fuser Checks

SUSPECTED CAUSE

1. Connector Contact

2. Thermistor wire open.

3. Thermal Fuse.

CHECK

Ensure that J103 and J204 connectors on the Fusing Assembly are seated securely into the DC Controller PCA connectors (see Figure 6-29 in the

Combined Service Manual for locations). Reseat the Fusing Assembly.

Remove the Fuser and measure the resistance between connectors J204-1 and J204-2 (see Figure 6-29 in the Combined Service Manual for location).

Resistance should read approximately 440 K Ohms at 20 Deg C (room temperature). If the thermistor wire is open, replace the Fusing Assembly.

Measure the continuity between connectors J103-1 and J103-2 on the Fuser

(see Figure 6-29, the Combined Service Manual for location). It should be approximately 30±5 Ohms for 100-120 VAC or 127±5 Ohms for 220-245

VAC. If the thermal fuse is open, replace the Fusing Assembly.

60


Troubleshooting

Table 7. 57/58 Main Motor Failure

LED Display ERROR CODE Description and Recommendation

57/58 Main Motor Failure The DC Controller has reported a general motor failure. The Main Motor is controlled by the DC Controller

PCA, and seated into connector J601.

Power-cycle the printer. If this doesn’t clear the message:

1. Does the main motor rotate on power-up? If no: a. Reseat the Main Motor into the DC

Controller connector.

b. Inspect the Gear Train for debris that would block the free operation of the gears.

c. The toner cartridge may not be rotating. Refer to "Drum Rotation

Functional Check in the Combined

Service Manual.

d. Main Motor faulty. Power up the printer and observe if stacker rollers rotate. If not, replace the Main Motor.

e. Replace the DC Controller PCA.

If the main motor does rotate:

2. Does the fan turn during printing?

If no: a. Power-cycle the printer.

b. Check the fan to determine if it is blocked from operation.

c. Reseat the fan connector on the

Laser/Scanner Assembly.

d. Replace the Fan.

e. Replace the Laser/Scanner

Assembly.

f. Replace the DC Controller.

g. Replace the connector between the scanner and DC Controller.

61


Troubleshooting

Table 8. 61.x/62.x SIMM Parity and Memory Errors


61.1 SIMM Slot One

Parity Error

62.1 SIMM Slot One

Memory Problem

Description and

Recommendation

1. Power-cycle the printer.

2. Reseat the SIMM.

3. Replace the SIMM.

61.2 SIMM Slot Two

Parity Error

62.2 SIMM Slot Two

Memory Problem

61.3 SIMM Slot Three

Parity Error

62.3 SIMM Slot Three

Memory Problem

62


Troubleshooting

Table 9. 62/63/64 Internal Memory Error


62.0 Internal Memory

Problem

63 Internal RAM Memory Test Failed

64 Scan Buffer Error



2. Replace the Formatter PCA.

63


Troubleshooting

Table 10. Video DMA Timeout Error


64 ERROR:

Video DMA Timeout




‘

Table 11. Dynamic RAM Controller Error


65 ERROR:

Dynamic RAM Controller




64


Troubleshooting

Infrared Port Not Responding

Situation

The connection cannot be established or the transmission seems to be taking longer than usual.

The printer prints only part of a page or document.

Solution

Make sure the device you are using is IrDAcompliant; 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 5P/5MP 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 IR port on the printer.

The connection has been broken during transmission. If you move the portable device during transmission, the connection can be broken. IrDA-compliant devices are designed to recover from temporary connection interruptions. Re-establish the connection

(depending on the device you are using, you can have anywhere from 3 to 40 seconds to reestablish the connection).

65


Troubleshooting

The print job has been properly sent to the printer, but the printer will not print.

Situation

The IR status light turns off during transmission.

Solution

If the connection is broken before the entire print job has been transmitted to the printer

(printing has not yet started), the printer may not print any of the job. If the Data light is on, press the RESET button to clear the printer’s memory. Then, position the device within the range of operation, and print the job again.

The connection may have been broken. If the

Data light is on, press the RESET button to clear the printer’s memory. Then, position the device within the range of operation, and print the job again.

Using the Infrared Test Tool

A special infrared troubleshooting test tool manufactured by

Genoa Technology, Inc. in cooperation with Hewlett-Packard is available through HP Direct Ordering (part number 5062-4461).

Refer to the discussion beginning on page 22 for more information.

66


Troubleshooting

Infrared Sensor

Input Paper S

AA

Tray 1

Inter-connect

PCA

AA

Figure 28 Main Wiring Diagram

67


Parts and Diagrams

Parts and Diagrams

The figures in this section illustrate the major subassemblies in the printer and their component parts. A table (material list) follows each exploded assembly diagram. Each table lists the reference designator (item number) for each part, the associated part number for the item, the quantity, and a description of the part.

While looking for a part number, pay careful attention to the voltage listed in the description column to ensure that the part number selected is for the correct model of printer.

Ordering Parts

All standard part numbers listed are stocked and may be ordered from HP’s Parts Direct Ordering, or Parts Center Europe (PCE).

Hewlett-Packard Co.

Support Materials Organization

8050 Foothills Blvd.

Roseville, CA 95678

Parts Direct Ordering: 1-800-227-8164 (U.S. Only)

Hewlett-Packard Co.

Parts Center, Europe

Wolf-Hirth Strasse 33

D-7030 Boeblingen, Germany

(49 7031) 14-2253

Contact your local HP Parts Coordinator for other local phone numbers.

68


Parts and Diagrams

Ordering Consumables

Consumables and accessories such as those listed on page 8-5, and in Table 4-1, Chapter 4, may be ordered direct from

Hewlett-Packard. The phone numbers are:

U.S.: 1-800-538-8787

Canada: 1-800-387-3154

(Toronto) 416-671-8383

United Kingdom: 0734-441212

Germany: 0130-3322

Contact your local HP Parts Coordinator for other local phone numbers.

N ot e

Parts that have no reference designator or part number are not field replaceable parts and cannot be ordered through SMO.

69


Parts and Diagrams

Figure 29. HP LaserJet 5P Covers and Doors

70


Parts and Diagrams

Table 12. Covers and Doors

REF

6

7

4

5

8

9

1

2

3

10

11

12

13

14

15

16

17

18

19

PART NO.

RG5-1709-000CN

RG5-1699-000CN

RB1-5931-000CN

RB1-5935-000CN

RS5-2228-000CN

RB1-5936-000CN

RG5-1697-000CN

RB1-5939-000CN

C3150-00004

C3155-00001

RS5-2418-000CN

RB1-5937-000CN

RB1-5938-000CN

RS5-2419-000CN

RF5-0593-000CN

RB1-5934-000CN

RG5-1710-000CN

RB1-5927-000CN

RB1-5924-000CN

RG5-1707-000CN

QTY

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

DESCRIPTION

Top Door Assembly

Power Connector Cover Assy

Cover, Main

Button, Lock

Spring, Compression

Guide, Lock Button

Paper Feed Tray Assembly

Arm, Tray 1 Sensor

Nameplate (HP LaserJet 5P)

Nameplate (HP LaserJet 5MP)

Spring, Torsion

Stopper, Hinge, Right

Stopper, Hinge, Left

Spring, Torsion

Brush, Mirror

Cover, Interface Connector

Side Cover Assembly

Bushing

Tray, Sub-assy, Face-Up

Face-Up Tray Assembly

71


Parts and Diagrams

Figure 30. HP LaserJet 5P Internal Components (1)

72


Parts and Diagrams

Table 13. Internal Components (1)

REF

7

8

5

6

3

4

1

2

9

10

11

12

13

PART NO.

RG5-1801-000CN

RB1-6006-000CN

RB1-6332-000CN

RG5-1692-000CN

RG5-1799-000CN

C3150-00005

C3152-69001

C3151-67901

C3151-69001

0515-2701

RB1-5971-000CN

RG5-1713-000CN

RB1-5999-000CN

RB1-5998-000CN

2

1

1

1

1

1

1

1

1

QTY

1

1

1

DESCRIPTION

Fan Assembly

Arm, Sensor

Pick-Up Roller (tray 2)

Pick-Up Assy (tray 2)

Motor Assembly

Formatter Shield

PostScript SIMM (exch.)

Formatter PCA (new)

Formatter PCA (exch.)

TORX screws

Leaf Spring

Gear train Assembly

Plate, Grounding, Left

Plate, Grounding, Right

73


Parts and Diagrams

Figure 31. HP LaserJet 5P Internal Components (2)

74


Parts and Diagrams


REF

5a

6

4

5

1

2

3

9

10

11

7

8

PART NO.

RG5-0683-020CN

XA9-0666-000CN

RG5-1786-000CN

RB1-5873-000CN

RS5-0313-000CN

RF5-1287-000CN

RG5-1706-000CN

RG5-0675-000CN

RG5-0674-000CN

RG5-0694-020CN

RG5-0766-030CN

RG5-0682-030CN

QTY

1

1

1

1

1

2

1

1

1

4

1

1

DESCRIPTION

Roller, Upper Output Assembly

Screw, TP

Mirror Assembly

Roller, Transfer

Gear, 17T

Transfer Roller Assembly

Transfer Guide Assembly

Transfer Mount Assy, Right

Transfer Mount Assy, Left

Switch, Plunger Assembly

Scanner Connector Assy

Lower Delivery Roller

75


Parts and Diagrams

Figure - 32. HP LaserJet 5P Internal Components (3)

76


Parts and Diagrams


REF

1

10

11

12

13

14

15

8

9

6

7

4

5

2

3

PART NO.

RG5-1780-000CN

C3150-69005

RG5-1698-000CN

RB1-3002-040CN

RS5-2232-000CN

RB1-6003-000CN

RB1-6002-000CN

RF5-1286-000CN

RB1-6001-000CN

RB1-2987-020CN

RG5-0584-000CN

RF5-1283-000CN

RG5-1814-000CN

RB1-6007-000CN

RB1-6008-000CN

RB1-3681-000CN

QTY

1

1

4

1

1

6

1

1

1

1

1

1

1

1

1

DESCRIPTION

Laser Scanner Assembly (new)

Laser Scanner Assembly (exch.)

Top Oblique Roller Assy

Plunger Lock, Door

Spring, Compression

Plate, Cartridge

Plate, Cartridge Grounding

Plate, MP Grounding, Right

Arm, Input Paper Sensor

Shield, HVT

Feeder Guide Assembly

Eliminator, Static Charge

Roller Assembly, Small Media

Foot, Chassis

Damper, Rubber

Cap, Laser Shutter

77


Parts and Diagrams

Figure 33. DC Controller Assembly

78


Parts and Diagrams

Table 16. DC Controller Assembly

REF

3

4

1

2

5

6

PART NO.

RG5-1719-000CN

RH2-5259-000CN

RG5-1712-000CN

RG5-1808-000CN

RB1-5987-000CN

RG5-1798-000CN

C3150-69001

RG5-1809-000CN

C3150-69002

QTY

1

1

1

1

1

1

DESCRIPTION

HVT Controller Assembly

Cable, Flat

DC Controller Case Assy

Tray 1 Connector PCA Assy

Shield, Case

DC Controller PCA (100-120V)

(new)

(exchange)

DC Controller PCA (220-240V)

(new)

(exchange)

79


Parts and Diagrams

Figure 34. Tray 2 Assembly

80


Parts and Diagrams

Table 17. Tray 2 Assembly

REF

3

4

1

2

5

PART NO.

R75-4000-000CN

RF5-0673-000CN

RS5-2458-000CN

RB1-3426-000CN

RB1-6378-000CN

RB1-3338-000CN

1

1

1

QTY

1

1

1

DESCRIPTION

Complete Tray 2 Assembly

Plate, Side

Spring, Compression

Claw, Separation

Tray, Legal

Plate, End

81


Parts and Diagrams

Figure 35. Tray 1 Assembly

82


Parts and Diagrams

Table 18. Tray 1 Assembly

REF

6

7

4

5

8

1

2

3

PART NO.

RG5-1695-000CN

RG5-1804-000CN

RG5-1694-000CN

RS5-2415-000CN

RH7-1258-000CN

RG5-1693-000CN

RB1-2205-000CN

RF5-0343-000CN

WG8-5210-000CN

QTY

1

1

1

1

1

1

1

1

1

DESC

Complete Tray 1 Pickup Assy

Tray 1 Sensor Cable

Paper guide Plate Assy

Spring, Compression

Solenoid SL2

Tray 1 Pickup Roller Assy

Roller, Tray 1 Pickup

Pad, Separation

Photosensor PS5

83


Parts and Diagrams

Figure 36. HP LaserJet 5P Fusing Assembly

84


Parts and Diagrams

Table 19. Fusing Assembly

6

7

4

5

1

2

3

10

11

8

9

12

13

REF PART NO.

RG5-1700-000CN

C3150-69003

RG5-1701-000CN

C3150-69004

RB1-5918-000CN

RB1-3097-000CN

RG5-0681-000CN

RG5-1813-000CN

XB2-8300-809CN

RS5-2421-000CN

RS5-0637-000CN

RB1-3109-000CN

RS5-2421-000CN

RB1-5910-000CN

RG5-1702-000CN

RG5-1703-000CN

RB1-5917-000CN

RB1-5906-000CN

1

1

1

2

1

1

1

1

1

1

1

1

1

QTY

1

1

DESCRIPTION

Complete Fuser Assy (100-120V)

(new)

(exchange)

Complete Fuser Assy (220-240V)

(new)

(exchange)

Cover, Delivery

Flag, Exit Sensor

Fuser Delivery Assembly

Guide , Fuser Entrance

Screw, W/Star, M3X8

Spring, Tension

Gear, 24T

Rubber, Continuity

Spring, Fuser Hook

Roller, Fuser Pressure

Fuser Film Assembly (100-120v)

Fuser Film Assembly (220-240V)

Roller, Fuser Delivery

Tab, Fuser Release

85


Accessories

Accessories

Listed below are the accessories and supplies, including supplemental documentation you can order for your HP LaserJet

5P or 5MP printer.

Option

Toner Cartridge

Memory upgrades

C3903A

Part Number

1 MByte—C3130A

2 MByte—C3131A

4 MByte—C3132A

8 MByte—C3133A

16 MByte—C3146A

Adobe’s PostScript Level 2

SIMM for the HP LaserJet

5P

C3152A

IEEE-1284 Parallel Cable

Replacement toner cartridge.

Adds up to 48 MBytes of memory to the HP LaserJet 5P printer, for a total of 50 MBytes. Adds up to 32 MBytes of memory to the HP LaserJet 5MP printer, for a total of 35

MBytes.

Description or Use

2 Meter A to B—C2950A

3 Meter A to B—C2951A

3 Meter A to C—C2946A

10 Meter A to C—C2947A

92215N

Adds PostScript Level 2 language and 1 MByte of memory to the HP LaserJet 5P printer; includes software for

Macintosh, Windows 3.1 and 3.11, and “HP LaserJet 5MP

Macintosh Notes” (factory-installed in the 5MP printer).

IEEE-1284-compliant cables, where:

A=host computer connector (A-type)

B=large printer connector (B-type)

C=small printer connector (C-type)

Connect to a LocalTalk Network.

LocalTalk Network cable for Macintosh

Serial printer cable for

Macintosh

HP JetDirect EX print servers (external)

HP Printer Pal (external)

92215S

J2382B

J2383B

J2593A

J2594A

C2971A

Directly connect to a Macintosh computer.

Ethernet (1 parallel ports)

TokenRing (1 parallel ports)

Ethernet (3 parallel ports)

TokenRing (3 parallel ports)

Printer fax accessory. Allows faxes to be printed by the printer; faxes can also be sent electronically from the PC.

Availability outside the US may vary.

Universal tray.

Extra Paper Cassette (Tray

2)*

R75-4000-000CN

IrDA Test Tool 5062-4661 Infrared communications test tool manufactured by Genoa

Technologies, Inc.

* This item must be ordered through HP Parts Direct Ordering, (800) 227-

8164. Outside the U.S., see "Parts and Diagrams earlier in this appendix.

86

Index

!

20 MEM OVERFLOW 56

21 PRINT OVERRUN 56

22 IO ERROR 56

40 ERROR 57

41 ERROR 57

50 FUSER ERROR 60

51 ERROR 57

52 ERROR 57

55 ERROR 57

57/58 MOTOR ERROR 61

61.x SIMM ERROR 62

62 MEMORY ERROR 63

62.x SIMM ERROR 62

63 MEMORY ERROR 63

64 ERROR 64

64 SCANNER ERROR 63

65 ERROR 64

68 SERVICE ERROR 57

A accessories 86 automatic I/O switching 26

B bi-directional communication 26 books available 8 -9 buttons

GO 10 power 4

RESET 10 status panel 10

C cables

IEEE-1284 compliant 26 clearing memory with RESET 10 cold reset 30 connections network 26 consumables life 36 ordering 69

D data light 12

DC controller 78 interconnect 49 removal and replacement 51 default settings, returning to 11 demo page 10, 30, 33 diagnostic 30 diagrams covers and doors 70

DC controller 78 fusing assembly 84 internal components 72, 74, 76 printer parts 4 tray 1 assembly 82 tray 2 assembly 80 wiring 67

DMO 69 documentation 8 -9 drivers 9

E

Economode 3 erasing memory with RESET 11 error clearing with RESET 11 continuable 56 data 14 fatal 15, 60 hardware-related 11 infrared 65

IR port 15 light patterns 56 memory 58 recoverable 14 secondary 56 service 60

SIMM 14, 58 error light 11, 14

F fax accessory 86 features 10 -29 product information 3 flashing lights 11 fonts 3 temporary, removing with RESET 11 formatter removal and replacement 47 fusing assembly 84 removal and replacement 50

G

GO button 10, 32, 56 grounding 25

I

I/O buffering 28

I/O cover removal and replacement 39

I/O switching 26

IEEE-1284

B-Type, C-Type 25, 26

1

cables, compliant 26 parallel ports 25 -26 specifications 26 infrared communication 18 interface 3 operation 21 port 4, 10 printing 20 software 18 status light 4, 10, 12, 15, 20 test tool 22, 23, 66, 86 troubleshooting 22, 65, 66 using to print 20 interface cables 25 -26 interfaces 25

I/O switching 26 internal components 72, 74, 76

IrDA, print using 20

J

JetDirect 86

L

LED patterns 58

LED patterns 56

LED patterns 13

LEDs, status 11 left side cover removal and replacement 40 light patterns 13, 56, 58 lights on status panel described 11 lights, status 11

LocalTalk interface 3

LocalTalk port 25

M

Macintosh reference manual available 8 -9 macros, temporary 11 main wiring diagram 67 media path 16 -17 memory 3 and I/O buffering 28 and resource saving 27 clearing with RESET 11 error 58, 62 ordering 86

SIMM removal 39 model number 5 monthly usage 3

N network, connecting to 26 networks 26

NVRAM 32

O ordering books 8 -9 consumables 69

LocalTalk 86 parts 68

Postscript 86

P pages, self-test 10, 33 panel

See status panel paper jams 11 movement, overview (theory) 16 path 16 -17 size 3 specifications 8 -9 trays 3, 4, 86 paper-out flag 43 parallel cable 26 parallel interface 3 parallel ports 25 parts ordering 68, 86

Parts Center Europe (PCE) 68 parts and diagrams 68 -85 parts, location 4, 17

PCE 68

PCL self-test page 33 phone numbers

DMO 69 ordering consumables 69

PCE 68

SMO 68

PJL commands 30 -35 port infrared 19 ports 25

PostScript, SIMM removal 39 power door removal and replacement 39 power switch 4 print speed 3 print spoolers 26 printer diagram 4 lights 11 parts diagram 4 serial number 5 printer configuration 30 printer languages 3 printer settings returning to defaults 11

2

protocol infrared 18

R ready light 12 reference guides 8 -9 regulatory information 5 removal and replacement 37

DC Controller 51 formatter 47 fusing assembly 50

I/O cover 39 left side cover 40 power door 39 tools 38 top cover 41

Tray 1 assembly 44 removing fonts, macros 11 required tools 38 requirements for infrared 19

RESET button 10, 32, 56 resetting your printer 11 resolution 3 resource Saving 27 modes 27 resuming printing 10

S self test 30, 33 self-test explained 35 pages 10, 33 serial number 4, 5 service mode 30 -35 settings returning to defaults 11

SIMM error 14, 58, 62 removal 39

SMO 68 software 19 shipped with printer 9, 18 space requirements 6 specifications acoustic 7 dimensions 6 -7 electrical 7 environmental 7

IrDA 18 spoolers 26 status panel 3, 4, 10

GO button 10 -11 lights 11

RESET button 10 supplementary documents 8 -9

Support Materials Organization

(SMO) 68 switchboxes 26 switching, I/O 26

T temporary fonts, macros 11 test pages 10, 32 -33 test tool 66, 86 infrared 23 toner, ordering 86 tools, required 38 top cover removal and replacement 41 tray empty 13 -14 tray 1 assembly 82 removal and replacement 44 light 12 tray 2 empty indicator 12 assembly 80 light 12 troubleshooting 55 -67 infrared 22 troubleshooting, IR port 22 turning on your printer 4 typefaces see fonts 3

W wireless printing

See see infrared wiring diagram 67

3

4

HP C3150A Printer Service Manual Reader’s Comment Sheet

Please give us your comments concerning this manual. Your constructive criticism will help us create better manuals in the future. Be as specific as possible, giving section and page reference where appropriate. Comments on the writing, graphics, binding, size, and printing method are helpful in making our manuals more useful and friendly.

I you would like a reply, be sure to include your name and address with your response. Thank you for your feedback.

March 1995

5010-6305

HP LaserJet 5P / 5MP Printer (C3150A / C3155A)

Service Supplement

Conventions

Contents

HP LaserJet 5P Printer

Service Supplement

Overview

Product Information

Key Printer Locations and Parts.

Model and Serial Numbers

Product Specifications

Documentation and Software

Documentation

Software

New Product Features

The HP LaserJet 5P/5MP Status Panel

The GO and RESET Buttons

The Status Lights

Common LED patterns

Paper Movement Overview

Infrared Communication

•

•

•

•

To Print Using the Infrared Port

Troubleshooting IR Printing Problems

Interface Connections

The Parallel Printer Interfaces

Resource Saving

I/O Buffering

Service Mode, PJL Defaults

Test Pages and Resets

Printing a Self-Test Page

Life Expectancy of Consumables

Removal and Replacement

Overview

Required Tools

Removing the Power Door

Removing the I/O Cover

Removing the Left Side Cover

Removing the Top Cover

Removing the Tray 1 Pickup Assembly

Removing the Formatter Board and Shield

Removing the Fusing Assembly

Removing the DC Controller Assemblies

Troubleshooting

Continuable Data Error Light Patterns

Error 53 -- Memory/SIMM Errors

Fatal/Service Errors

‘

Infrared Port Not Responding

Using the Infrared Test Tool

Parts and Diagrams

Ordering Parts

Ordering Consumables

Accessories

Index

HP C3150A Printer Service Manual Reader’s Comment Sheet

March 1995

5010-6305

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Table of contents