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LaserJeteries 1 S ! PriiTter [HP 33440) and LaserJetllrinter i P (HP33449) CombinedServiceanual M

HP Part No. 33449-90906 Printed in USA First Edition - February ,,
`,.

1990

Notice
HEWLETT-PACMA~S NO WARRAN~ OF ~ ~ND ~TH REGARD TO T~S ~TERM, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED W~TIES OF MERCMTABILI~ AND FIT~SS FOR A PARTICULAR PURPOSE. Hewlett-Packard shall not be liable for errors contained herein or for incidenti consequential damages in connection with the furnishing, performance, or use of this material. This document contins proprietary information which is protected by copyright. Ml rights are resewed. No pati of this document may be photocopied, reproduced, or translated to another language without the prior written consent of Hewleti-Packard Company. The information contined in this document is subject to change without notice.

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@ Copyright 1990 Hewleti-Packard Company

HP 33440/HP

33449 COMBINED SHEET

PRINTER SERVICE MANUAL

READER'S COMMENT

Please @ve us your commente concerning this manual. Your constructive criticism will help us create betir manuals in the future. Be as specific as possible, giving section and page references where "appropriate. Commenb on the writing, graphiw, binding, size, and printing method are helpful ~n-m~ng our manuals more useful and friendly. If you wotid like a reply, be sure to include your name and address with your response. Thank you , for your feedback.

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+'

/

Februaw 1990 33W9-90906

, ~: 111111
NO POSTAGE NECESSARY lF~l~D IN TNE UN~D STA=S FIRST CLASS MAIL POST~E

..,` ..

: :

!

BUSINESS REPLY MAIL
PERWT NO. 141 WILL BE PAID BY ADDRESSEE

SOISE, IDAHO

Hewlti-Packard Company Boise DiWsion "Atin:Learning Produc@ M.S. 517 P.O. Box 15 Boise, Idaho 83707-99W

Printing History
This manual was created using HP Tagflectra sotiare on an HP Vectra Personal Computer. The body ted is printed in Centu~ Schoolbook fonts, and chapter and section heads are printed in Helvetica fonts. The camera-ready copy was printed on an HP LaserJet III printer and reproduced using standard offset printing.
Hrst Edition - Februa~ 1990

Trademark

credits

PCL is a registered trademark of Hewleti-Packard Company. Resolution Enhancement is a trademark of Hewlett-Packard Company. PostScript is a registered trademark of Adobe Systems, Inc. in the U.S. and other countries. HP Vectra Personal Computer is a product of Hewlett-Packard Company. lBM is a registered trademark of Int~rnationd Business Machines Corporation.

This manual uses the following conventions: CoIor indimtes te~ or graphics that is specific to the LaserJet III (HP 33449) printer. Color may dso be used for emphasis, tities, and other non-HP 33449-specific material. The names of major printer pafis and assemblies are capitiized.
Bold is used for emphasis, patiicularly in situations where italic me

would be confusing.

Italic type is used to indicate related documents or for emphasis. COMPUTER indicates teti visible on the printer's display or commands as seen on a PC type terminal.
indicates keys, such as (=], [-] keyboard.

on the printer's Control Panel or on a computer

Note
,! * Caution @ Warning
B M

Notes contin impotint

information set off from the teti.

Caution messages appear before or tier procedures which, if not obsemed, could result in loss of data or in damage to equipment.

Warning messages

signal a specific procedure

or practice which, if not followed

correctly, could cause personal injury.

Ill

...

contents
1. PRODUCT INFoRmmoN

. . . . . . . . . . . 1-2, IDENTIFICATION . . . . . . . . . . . 1-3< SPECIFICATIONS . . . . . . . . . . . 1-4< RELATED DOCUMENTATION . . . . . 1-5< SAFETY AND RELATED INFORMATION 1-6< PRINTER P~TSO~RWEW . . . . . 1-7. CONTROL P~ELOWRWEW, . . . . 1-8. SERWCEAPPROACH ..,.,... . 1-9. WARRANTY STATEMENT . . . . . . .
2.

1-1< INTRODUCTION

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1-3 1-5 1-6 1-7 1-8 1-12 1-15 1-17 1-18

S~EP~NGmREQ~REMEm 2-1. INTRODUCTION . . . . . . . . . . . . . . . . . . 2-2. SITE REQUIREMENTS . . . . . . . . . . . . . . . 2-3. STORING AND HANDLING EP-S CART~DGES . . . . 2-4. PAPER SPECIFICATIONS . . . . . . . . . . . . . . 2-5. E~LOPE SPECIFICATIONS . . . . . . . . . . . . 2-6. ADHESW NEL AND OWRHEAD TRANSPARENCY INsTmMmoN mD comGmmoN . . . . . . . . . . . . . . 3-1. INTRODUCTION 3-2. UNPAC~NG AND INSTALLATION . . . . . 3-3. USING THE CONTROL P~EL . . . . . . . 3-4. USING THE PRINTING AND CONFIGURATION 3-5. FONT PRINTOUTS . . . . . . . . . . . . . 3-6. SELF TESTS . . . . . . . . . . . . . . . . 3-7. SERWCE MODE . . . . . . . . . . . . . .
PRmmm 4-2. 4-3. 4-4. 4-5. 4-6. 4-7. 4-8. 4-9.

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2-3 2-3 2-4 2-6 2-8 2-11

3.

. . . . . . . . . . . . MENUS . . . . . . . . . . . .

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3-3 3-3 3-7 3-14 3-21 3-25 3-30

4.

4-1. INTRODUCTION

wmNmcE . . . . . . . . . . . . . . . . . . . . . . LIFE E~ECTANCY OF CONSUWLES AND RELATED PARTS WNTENANCE CHEC~OINTS . . . . . . . . . . . . . . . CLEANING THE PRINTER . . . . . , . . . . '. . . . . . . CLEARING PNERJAMS . . . . . . . . . . . . . . . . . . OZONE FILTER REPLACEMENT . . . . . . . . . . . . . . . FUSER CLEANING PAD REPLACEMENT . . . . . . . . . . . EP-SCARTRIDGE LIFE AND USE . . . . . . . . . . . . . . PRINT DENSITY ADJUSTMENT.. . . . . . . . . . . . . .

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4-3 4-3 4-4 4-5 4-11 4-13 4-14 4-15 4-16

Contents-1

5.

MC~ONM

O~RWEW

5-1. 5-2. 5-3. 5-4. 5-5. 5-6.
6.

INTRODUCTION IMAGE FORMATION .SYSTEM: PIcKuP/FEED system . . . . MACHINE CONTROL SYSTEM. INTERFACE SYSTEM . . . . . POWER DISTRIBUTION . . . .

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5-3 5-4 5-13 5-16 5-17 5-21

R~OV& REP~C~ENT 6-1. INTRODUCTION . . . . . . . . . . . . . . 6-2. COWRS, P~ELS, AND ASSOCWTED PARTS 6-3. WN BODY COMPONENTS.. . . . . . . . 6-4. TOP COWR ASSEMBLY COMPONENTS . . . 6-5. BOTTOM COWRCOMPONENTS . . . . . . ~O~LESHOO~NG 7-1. INTRODUCTION . . . . . . . . . . . . 7-2. P~-TROUBLESHOOTING PROCEDURES 7-3. WNFLOWCHART . . . . . . . . . . . 7-4. PMNTER MESSAGE TROUBLESHOOTING 7-5. IMAGE FORMATION TROUBLESHOOTING 7-6. INTERFACE TROUBLESHOOTING . . . . 7-7. TROUBLESHOOTING MDS. . . . . . .

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6-5 6-11 6-19 6-43 6-53

7.

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7-5 7-6 7-8 7-13 7-57 7-84 7-87

8.

Pam m DMGU 8-1. HOW TO USE THE PARTS LISTS . . . . . . . , . . . . . . . . . . . 8-2. PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-3. P~TSIND~ . . . . . . . . . . . . . . . . . . . . . . . . . . . . YO~ RO~ W TO SE~NG UP YOUR WEMET
SERIES 11 PRI~ER

8-3
8-4 8-51

A B.

YO~

GUIDE TO

SE~NG BOARD

W

YO~

WEWET

111 PRl~ER

c. HP 33449moRY
D. E. F.

INsT&MmoN

CMLING

DUG33449 PRINTER MGUAGE CO~DS MESMGE TWSM~ONS

HP 33440/HP

HP 33449 DISPMY G1OSXW Index

Contents-2

PRODUCT

information

contents
1.
PRoDucTImoumoN

1-1. INTRODUCTION . . . . . . . . . . . . . Features Common to Both Printers . . . . . . . Features Which Apply Only to the HP 33440 . . Features Which Apply Only to the HP 33449 . . 1-2. IDENTIFICATION . . . . . . . . . . . . . 1-3. SPECIFICATIONS . . . . . . . . . . . . . Physid Dimensions . . . . . . . . . . . . . Electrid Specifimtions . . . . . . . . . . . . Environment Specifimtions . . . . . . . . . 1-4. RELATED DOCUMENTATION . . . . . . . HP 33440 . . . . . . . . . . . . . . . . . . HP 33449 . . . . . . . . . . . . . . . . . . 1-5. S~E~ AND RELATED INFORWTION . . Genera l . . . . . . . . . . . . . . . . . . Laser Safety . . . . . . . . . . . . . . . . . Finnish Laser Statement . . . . . . . . . . . German ZZF Declaration . . . . . . . . . . . FCC Regulations . . . . . . . . . . . . . . . Federd Communications Commission (FCC) Rdio Statement . . . . . . . . . . . . . . . . Ozone Emission . . . . . . . . . . . . . . . . Genera l . . . . . . . . . . . . . . . . . . Employer Responsibilities . . . . . . . . . . . Recommendations for Minimizing Ozone E~osure Toner Safe@ and Care . . . . . . . . . . . . . 1-6. PRINTER PARTS O~RWEW . . . . . . . . 1-7. CONTROL PANEL O~RWEW . . . . . . . . Genera l . . . . . . . . . . . . . . . . . . . 1-8. SERWCE APPROACH . . . . . . . . . . . . Overview . . . . . . . . . . . . . . . . . . . Repair Parts . . . . . . . . . . . . . . . . . . Consumables and Accessories . . . . . . . . . .

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1-3 1-3 1-3 1-4 1-5 1-6 1-6 1-6 1-6 1-7 1-7 1-7 1-8 1-8 1-8 1-9 1-1o 1-1o 1-10 1-11 1-11 1-11 1-11 1-11 1-12 1-15 1-15 1-1,7 1-17 1-17 1-18

Frequency Interference (RFI) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ,. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-1

HP 33440/HP

33449

COMBINED

SERVICE

MANUAL

1-9. WARRANTY STATE~NT . . . . . . . . . Genera l . . . . . . . . . . . . . . . . . . Warran& . . . . . . . . . . . . . . . . . . One-Year Limited Warranty . . . . . . . . . Exclusions . . . . . . . . . . . . . . . . . WarranQ Limitations . . . . . . . . . . . . Sefice During the Warran~ Period . . . . . Setice After the Warranty Period . . . . . . Repacting Guidelines for Returning Your Printer

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1-18 1-18 1-18 1-18 1-18 1-19 1-19 1-20 1-20

1-1. l-2. l-3. l-4. l-5. 1-6. l-7. l-8. l-9. l-10.

Printer Identifimtion and Power Rating . . . Printer Regulatory Labels... . . . . . . Laser Safety Label Example.. . . . . . . Finnish ker S%tement. . . . . . . . . West German ZZF Declaration . . . . . . . ~ 33449 Printer (Front and Right Side View) ~33449Printer (Rearview). . . . . . . ~33449Printer (Internal View) . . . . . ~33440 Control Panel... . . . . . . . ~33449 Control Panel... . . . . . . .

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1-5 1-8 1-9 1-9 1-1o 1-12 1-13 1-14 1-15 1-15

Tables
l-1. l-2. l-3. 1-4. 1-5. Physid Dimensions . . . . . . . . . . . . . . . . . Electrid Specifimtions. . . . . . . . . . . . . . . Entironmenti Specifimtions . . . . . . . . . . . . . Key Functions ~ 33440 and ~ 33449 Printers . . . . . Control Panel Indimtors ~ 33440 and ~ 33449 Printers . . . . . . . . . , . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...1-6 . . . . . . . . . 1-6 1-6 1-16 1-17

1-2

HP 33440/HP

33449 COMBINED

SERVICE

MANUAL

f-l.

introduction

Features Common to Both Printers
Because the HP 33440 (LaserJet series II) and HP 33449 (LaserJet III) printers produce high-quality output quietiy and reliably, they are idedly suited for today's business environment. Both laser printers: Employ reliable, efficient, and easily maintained designs based on electrophotographic, electronic, and laser technolo~es to produce high-quality print on a variety of media, including copier papers, cotton bond papers, envelopes, transparencies, and labels. Output selection can be for either correct (face down) or reverse (face up) order. Combine a charging corona, photosensitive drum, toner, developer, and drum cleaner in a single assembly, the Electrophotographic (EP-S) Cartridge. Simply replacing the EP-S Cartridge allows maintenance and periodic replacement of consumables and parts by the customer, saving both time and maintenance costs. Employ a compact, safe semiconductor laser driven directiy by control signals. It is certified as conforming to U.S. Bureau of Radiologid Health (BRH) standards. Produce up to eight pages per minute, depending upon sotiare and dati constraints, with extended symbol set capability and Control Panel configurability. Provide serial (RS-232 and RS-422) and pa~lel (Centronics) 1/0 mpabilities, with provision for other 1/0 mpabilities through an optional 1/0 slot. Support macro cartridges for forms generation.

Features Which Apply Only to the HP 33440
Memo~ Provides 512 ~ytes toti internal read/write memory with the capability to increase memory by the addition of 1, 2, or 4 Mb~es, through a single expansion slot, up to 4.5 Mb~es toti. Font Handling Provides up to 7-inch character cell size, printable space character, downloadable fonts, font managemen~ and Up to 16 fonts per page. Ten bitmapped fixed-pitch internal fonts are standard. Two font mrtridge slots are available. Printer Command Language: Employs the PCL4TM Printer Command Language.
s

PostScriptR Printer Language: Supports the PostScriptR printer language through an optional HP interface package. Resolution: Provides up to 300 x 300 DPI (dots per inch) resolution.

s

1-3

HP 33440/HP

33449 COMBINED

SERVICE

MANUAL

Features Which Apply Only to the HP 33449
Memo~ Provides 1 Mbfie of toti internal read/write memory with the capability to increase memory by the addition of 1, 2, 3, or 4 Mbytes, through tio expansion slots, up to a toti of 5 Mbfies. Font Handling Provides dl the features of the HP 33440 as well as font soling capability for generating fonts of any desired size from 4 to 999.75 points in quarter-point increments and autorotation for fonts and raster graphics. (Print images are rotated automatically as the page orientation is rotated, allowing available fonts to be used in dl rotations.) Expanded symbol sets are dso built in, as well as 14 bitmapped fonts and eight salable ~efaces. Printer Command LanWage: Employs the PCL5TM Printer Command Language, containing HP-GL/2 (HP's ~ndard plotter language) and other enhanced printing features such as font soling and font rotition. PostScriptR Printer Language: Supports PostScriptR printer language through an optional HP persondi~ wrtridge. Resolution: Provides up to 300 x 300 DPI resolution as well as employing Resolution Enhancement,TM an HP proprietary technolo~ that improves the visual quality of printed images beyond the 300 DPI standard capabiti@. Page Protection Provides, with expanded memo~, the ability to avoid partial printing of complex, graphics-intensive pages. Localized Display Messages: N1OWS lodization of display messages for five languages.

1-4

HP 33440/HP

33449 COMBINED

SERVICE

MANUAL

1"2. IDENTIFICATION
The re@atory labels, lomted behind the Face-Up (Rear) output Tray, are different for the HP 33440 and HP 33449. For the HP 33440, the regulatory label contins both the model and serial number. On the HP 33449, the model and serial number are located on a separate label just below the power connector on the right side panel of the Main Body Covers (see Figure l-l). Note that this portion of the right side panel is removable on the HP 33449. (Care must be taken to ensure the printer's cover, with its serial number, stays with the printer.) The model number is an alphanumeric such as HP 33440A or 33449AB. For both printers, the serial number consisti of the following sequence: a four digit prefk, a letier, and a five digit suffk (for emple: 0000JOOOOO). The prefk is used to indicate year and week of manufacture. The letter designates the country in which the printer was manufactured ("J" indicates Japan, for e~mple). The suffii is a sequential number incremented for each printer produced. For both printers, the power rating is lomted on a plate nefi to the Power Switch (see Figure l-l).

FACE-UP TWY UBEL

OWPUT

@EGUWTORY BEHIND)

R
WER WTHz
50-w

RAnNG
1OO-W5

1

E:: AND

3344?A SERIAL No. PLATE

3;::0000

1

MODEL

(HP 33449

ONLW

WS.

7.6

HP 33W

REGUMTORY

MBEL

Figure 1-1. Printer identification and Power Rating

1-5

HP 33440/HP

33449 COMBINED

SERVICE

MANUAL

1-3.

specifications

Physical Dimensions
Table 1-1. Physical Dimensions

Electrical

Specifications
Table 1-2. Electrical Specifications*

Volkge FreWencies C-nt, Steady State Power, Printing -mum Power, Stindby

100 V or 115 V A 10% 500r60Hz+2Hz 8.7 A at 100 V 7.6 A at 115 V 870 Wati at 115 V 3000 BTU/hr 170 Wati at 115 V 580 BTU/hr

220 V or 240 V ~ 10% 50 Hz+2Hz 3.4 A at 220 V 3.1 A at 240 V 850 Watts at 220 V 2900 BTU/hr 170 Wa~ at 220 V 580 BTU/hr

* With no accessories instiled.

Note
Pi v

The HP 33440A and HP 33449A (50/60 Hz) have a transformer that automatidly adjus~ for 100 or 115 volk, the HP 33440AB/AU and HP 33449AB (5O Hz) automatidy adjust for 220 or 240 volts.

Environmental

Specifications
Table 1-3. Environmental Specifications

1-6

HP 33440/HP Table 1-3. Environmental

33449 COMBINED (continued)

SERVICE

MANUAL

Specifications

H~idity Mtitude Audible Noise

Operating 20 to 80% RH *Non-Operating 10 to 80% RH Operating *Non-Operating Printing Oto 4,600m (O to 15,100 fi) Oto 15,300m (O to 50,200 ft)

5,8 B LWAd(1 B = 10 dB) 42.9 dB LP~~ (bystander at 4 positions) Standby 5.0 B LW*d (1 B = 10 dB) 33.3 dB LpA~ (bystander at 4 positions)

* Printer only, not EP-S Cartridge. See Chapter 2, Section 2-3 for EP-S Cartridge.

I

1"4. RELATED DOCUMENTATION
The folloting documents provide additiond information about the HP 33440 and HP 33449 printers:

HP 33440
Shipped tith printer:
s

s s s

LaserJet series II Printer Getting Started Manual (P/N 33440-90908). (Replaced by Your Road Map to setting up Your tiserJet series II Printer, P/N 33440-90004, in November 1989; included here as Appendk A.) LaserJet series II Printer User's Manual (P/N 33440-90901). (English language version.) LaserJet series II Software &plication Notes (P/N 33440-90006). (U.S. only.) LaserJet series II Printer Technical Reference Manual (P/N 33440-90905).

Additiond information:
s LaserJet series II Printer Paper Specification Guide (P/N 5954-7339). w Peripherals Handbook Insert (P/N 33440-90906). H Self-Paced Training Guide and Final Review (P/N 33449+49A-901O1).

HP 33449
Shipped tith printec
u s s s

Your Guide to Setting up Your hserJet III (P/N 33449-90905); included here as Append& B. LaserJet III Printer User's Manual (P/N 33449-90901). (English language version.) LaserJet III So~are &plication Notes (P/N 33449-90917). (U.S. only.) LaserJet III User's Quick Reference Guide (P/N 33449-90902).

Additiond information:
s s s s

Peripherals Handbook Insert (P/N 33449-90908). SelfiPaced Training Guide and Final Review (P/N 33449+ 49A-901O1). LaserJet III Technical Quick Reference Guide (P/N 33449-90904). LaserJet III Technical Reference Manual (P/N33449-90903).
1-7

HP 33440/HP

33449 COMBINED

SERVICE

MANUAL

?-5. SAFETY AND RELATED INFORMATION
General
The HP 33440 and HP 33449 printers are UL 478 listed, CSA 22.2154 certified, and manufactured in accordance with DIN EC 380/IEC 435. Where necessary, warning labels are affked to the printer wherever special service atiention is needed.

warning
B u

Because

the printers contain potentially hazardous

voltages,

accessories

such

as watches and rings should be removed before working on the printers.

Laser Safety
The both printers are certified as Class 1 laser products under the U.S. Department of Health and Human Services (DHHS) Radiation Performance Standard according to the Radiation Control for Health and Safety Act of 1968. This means that they do not produce hazardous laser radiation. Both printers dso comply with the Center for Detices and Radiologid Health (CDRH) regulations. Since laser light emitted inside the printer is completely confined within protective housings and etirnd covers and futiher contined by an interlock system, the laser beam cannot escape during any phase of normal user operation. The Center for Devices and hdiologid Health (CDRH) of the U.S. Food and Drug Administration implemented relations for laser products on August 2, 1976. These regulations apply to laser products manufactured since August 1, 1976. Compliance is mandatory for products marketed in the United States. The label below (see FiWre 1-2) indicates compliance with CDRH regulations and must be attached to liner products marketed in the United States. European models dl comply with or meet IEC 825 for laser safety.

L

Figure 1-2. Printer Regulatory warning B u

Labels

When servicing or adjusting the printer's optical system, do not place screwdrivers or other shiny objects in the path of the laser beam. invisible, the reflected beam can cause permanent eye damage. Although

1-8

HP 33440/HP

33449 COMBINED

SERVICE

MANUAL

mere there is danger of exposure to laser radiation, the fo~oting label is attached inside printer covers:

I

LASERRADIAmON WHEN OPEN. \ DIRE~ EX~URE TO BEAM. ATTENTION - RAYONNEMENTASERINVISISLES1OUVE~. L DANGEREUX REGARDER Ul~MEUR. N A
AVOID

DANGER-INv~Bu

VORSICHT- UN~ NM

RE LASERSTRAHLEN ENNGE6FFNH. W HINEINSEHEN. \

~

g' c&\
I I
safety Label Example

I

CAUTION-INVSBM LASERRADIAN WHENOPEN. AV~D EX~SURE ~ BEAM. ATTENTION -RAYONNEMENT LASEREN CAS DOUVERTURE ExPO~N DANGERAU FAZU. VARO!-AVATTAESSA OLET ALrmNA NAKYMAnOMAW U=RSA_lLYLLE AM KATSDS~TEESEEN. m-wa @ K-6

Figure 7-3. Laser

Finnish Laser Statement
The folloting notice is required to be printed in Finnish.
\

TURVALL

IS UUSYHTEENVETO

MERTURV&LISUUS HP 33440AB ja HP 33449AB laserki~oitimet ovat ti~an kanndta turvdlisia luokan 1 laserlaitieita. Laitieet on tirkastanut Suomessa Tyoterveyslaitosja tyyppihyv~ynyt Tyosuojeluhdlitus, Tyosuojeluhdlituksen hyv~yntinumerot HP 33440AB: TSH 1563/6019/87 HP 33449AB: TSH 713/6019/89 Tarkastuksessalaitieiden turvdlisuusluokka on mtira~ 472/1985 ja standardin SFS-EC 825 mukaisesti. vdtioneuvoston p=toksen N:o

NormAikaytossa laitteen suojakotelo estia laser~teen p%syn laitteen ulkopuolelle. HUOLTO firjoittimien sis~la ei ole ka~jan huolletitissa olevia kohteita. Laitieet saa avati ja huoltaa ainoastaan laserltitieiden huoltimiseen koulutetiu henkilo. T~laiseksi huoltotoimenpiteeksi ei katsota variainekasetin vaihtimista, paperiradan puhdistusta ti muiti kayttoohjeessa lueteltuja, ka~j an tehtiv~si tarkoitetiuja yllapitotoimia. Wrjoittimien turvdlisuusluokitus muuttuu mikNi niiden suojakotelo ava~n. Laitteiden sis~la olevassa laseryksikossa on laserdiodi,j oka Iaitieen toimiessa lahe~ silm~le n~ymatonti, luokan 3B Iasersateilya.
Figure 1-4. Finnish Laser Statement 1-9

HP 33440/HP

33449 COMBINED

SERVICE

MANUAL

German ZZF Declaration
The fo~owing notice, which is required to be printed in German, applies to printer operation and seticing in Germany.

Funkentstorung

Deutschland

Herstellerbescheinigung mit

Hiermit wird bescheini@, dd das Gerat HP 33440 oder ~ 33449 in ~ereinstimmung den Bestimmungen von Postverfugung 1046/84 funkentitirt ist.

Der Deutschen Bundespost wurde das Inverkehrbringen dieses Gerates angezei~ und die Berechtigung zur ~erpfifung der Serie auf Einhdtung der Bestimmungen eingeraumt. Wird das Gerat innerhdb einer Anlage betrieben: 8 So mufi bei Inanspruchnahme der Algemeinen Genehmigung FTZ 1046/84 die gesamte Anlage der oben genannten Genehmigung entsprechen. Die mit einer FTZ-Serienprtifnummer gekennzeichnet ist, und fir die eine Betriebsgenehmigung vorlie~ oder beantragt wird, so sind in der Regel keine weiteren Schritte notwendig.

H

Figure 1-5. West German ZZF Declaration

FCC Regulations
Federal Communications Commission (FCC) Radio Frequency Interference (RFI) Statement

This equipment generates and uses radio frequency energ. If not instiled, serviced, and used properly (that is, in strict accordance with the manufacturer's instructions), it may cause interference to radio and television reception. The equipment has been type tested and found to comply within the limits set for a Class B computing device in accordance with the specifimtions in Subpart J of Part 15 of FCC ties, which are designed to provide reasonable protection against such interference in a residential instigation.

Note
# w

Use of a shielded interface able is required for compliance to fdl within the Class B timits in Subpart J of Part 15 of FCC rules.

No guarantee can be given that interference with radio or television reception will not occur in a particular instigation. If this equipment does muse interference - which can be determined by turning the equipment off and on ­ try to correct it by using the following measures: Reorient the radio or television antenna. Reorient the device with respect to the radio or television receiver. N Move the device away from the receiver. E Plug the device into a different outiet so it is on a different branch circuit than the receiver.
s s

1-10

HP 33440/HP

33449 COMBINED

SERVICE

MANUAL

If necessary, consult your deder or an experienced radio/television technician for additiond suggestions. The Federd Communimtions Commission has prepared a booMet entitled lnte~erence Handbook (1986) (stock number 004-000-004505-7) which may be purchased from the Superintendent of Documents, U.S. Government Printing Office, Washin@on, D.C. 20402.

Ozone Emission
General

The corona assemblies found in laser printers and photocopiers generate ozone gas (03) as a by-product of the electrophotographic process. Ozone is only generated while the printer is actually printing (i.e., while the corona assembly is energized). Unde~riters Laboratory (UL) has established a standard for ozone emissions. Ml LaserJet printers meet this standard when shipped from the factory.
Employer Responsibilities

Because ozone can be an irritant, various regulatory agencies have e~blished limits to the amount of ozone to which employees may be exposed. The employer should provide a work environment that meets the following standards:
s

s

A person may not be exposed to an average concentration of greater than 0.1 part per million (PPM) of ozone for a period of eight hours. At this time, the American Conference of Governmental Industrial Hygienists (ACGIH) has proposed a ceiling limit of 0,1 PPM for ozone.
for Minimizing Ozone Exposure

Recommendations

Mmost dl ozone concerns arise from abnormal site or operating conditions. The following conditions may generate an ozone complaint Multiple laser printers in a confined area. w Efiremely low relative humidity. s Poor room ventilation. s Printer exhaust port directed toward the faces of personnel. E fisting Ozone Filter in need of replacement (see Chapter 4). s Long, continuous printing combined with any of the above conditions.
s

Inspect your work environment for the operating conditions listed above if you believe ozone emissions are a problem in your area. Some people may be extremely sensitive to ozone odor. If this situation is encountered, it is advisable to position the printer away from the sensitive user.

Toner Safety and Care
Toner is a nontoxic substance composed of plastic, iron, and a small amount of pigment. Care should be taken to avoid breathing toner particles. To clean toner from skin and clothing, remove as much toner as possible with a vacuum or dry tissue wipes, then wash the toner from skin or clothing with cold water. Hot water makes toner very difficult to remove. Bemuse toner tends to be degraded by vinyl materials, contact with vinyl should be avoided.

1-11

HP 33440/HP ?-6.

33449

COMBINED PARTS

SERVICE OVERVIEW

MANUAL

PRINTER

Since the lomtion of major components is similar for both printers, only the HP 33449 is shown here. For an HP 33440-specific pa~ overview, see Chapter 6.

Figure 1-6. HP 33449 Prin%er

(Front and Right side view)

1. Top Cover Release Bution. 2. Test Print Bution (under panel on HP 33449). 3. Control Panel. 4. Right Cartridge Slot. 5. Lefi Cartridge Slot. 6. Paper Tray Slot.

1-12

HP 33440/HP

33449 COMBINED

SERVICE

MANUAL

1. Rear (Face-Up) Output Tray Release. 2. Top (Face-Down) Output Tray. 3. Rear (Face-Up) Output Tray (closed). 4. Expansion Memory Slot(s) (one in HP 33440, ~o in HP 33449). 5. Par~lel Port. 6. Serial Port. 7. Optional Interface Slot. 8. Serial Number (HP 33449) (On ReWlatory Label for HP 33440). 9. Power Connector Socket. 10. Power Stitch.

1-13

33440/HP

33449 COMBINED

SERVICE

MANUAL

Figure 1-8. HP 33449 Printer (Internal Wew)

1. 2. 3. 4. 5. 6. 7. 8. 9.

Ozone Filter. Feed Guide Assembly. Transfer Corona Assembly. Transfer Guide Lock Tray. Print Densi@ Did. Transfer Guide Strip. Cleaning Brush. Fusing Assembly. EP-S Cartridge.

1-14

HP 33440/HP

33449 COMBINED

SERVICE

MANUAL

7-7. CONTROL PANEL OVERVIEW
General
Since key names and functions for both printers are essentially the mme, the table of key assignments below applies to both printers. A complete overview of Control Panel finctions with regard to service needs is given in Chapter 3. For a detailed overview desi~ed for users, see the kserJet series II Printer User's Manual or the kserJet III User's Manual.

READY

-

Display
window

+ 0
D

00 READY

1

MANUAL

Indicator light

BnnD[M+m
White Yellow d Figure a-9. HP 33440 Control Panel ,

1

= H

Raady Manml

00

READY

Display
window

Indicator light

nmm &j=, L
Y On UM

Figure f-lo.

HP 33449 control Panel

1-15

HP 33440/HP

33449

COMBINED

SERVICE

MANUAL

Table 1-4. Key Functions HP 33440 and HP 33449

Printers

Keys m

Description Turns printer on line and OR line. When on line, the indimtor light is on and the printer a receive data. When OHline, other Control Panel functions can be performed.
~

~CONTINUE/RESETj

Briefly pressing this key clears most errors and returns printer to on-fine status. Will dso reprint lost pages due to correctable error conditions. [=] Holding down key until 07 RESET displayed (2 -5 is seconds) resets the printer, returning dl printing setiings to Control Panel settings and clearing temporary sofi fen%, macros, and stored page data.

[PRINT

FONTS/TESTj

[PRINT

FONTS) Briefly pressing this key gives a printout of sample characters from currentiy available fonts.

~ Holding down key until 05 SELFTESTis displayed te- the controller and prints a test printout. If key is held down longer, 04 SELFTESTis displayed and continuous test prints are made (press ~~) again to stop test print process).
(FORM FEED)

Form feed tight indicates that page data is stored in printer's memory. Pressing (~] printi dl stored data. Accesses and steps through Printing and Configuration Menus. Pressing [H) played). enters the Printing Menu (COPIES=is dis-

m

Holding down [-] (about 5 seconds) until SYM SET= (HP 33440) or AUTO CONT=(~ 33449) is displayed enters the Configuration Menu.
(ENTER/RESET MENuj _

Pressing key saves a Menu choice while in the Printing or Configuration Menus.

[RESET

MEN u) Holding down key until og MENUESET R is displayed returns Printing Menu confi~ration to factory defaul~.

Qor

Q

Pressing Q or Q will increment or decrement menu item choices. Holding down a key til scroll through choices.

1-16

HP 33440/HP

33449 COMBINED

SERVICE

MANUAL

Table 1-5. Control Panel Indicators HP 33440 and HP 33449 Printers

Indimtor On Line Indimtor

Dacription When the amber LED adjacent to the [~] key shows a steady light, the printer is on line, indimting that it is ready to receive data. The printer should be on line tier it has been turned on and warmed up. The amber FORM FEED indiwtor adjacent to the [~) key will light whenever page dati is stored in the printer's memory and flash when this data is being printed. The green READY indimtor is lit when the printer is on and ready to print. When the light is flashing, the printer is receiving dati or processing data &ready received. The amber WUAL indimtor is lit when manual feed has been selected from the Control Panel or through a sotiare application.

Form Feed Indimtor

Ready Indicator

Manual Indicator

Overview
The basis for repair for both the HP 33440 and HP 33449 printers centers on the modular-level replacement of electro-mechanid assemblies and some associated components as well as the assembly-level replacement of printed cirmit assemblies (PCAS). For both printers, the diagnostics and this document together aid in isolating problem areas. After lomtion, the problem assembly or component should be replaced without further atiempts to identi~ failures within the component or assembly.

Repair Parts
For both printers, an exchange program for Interface/Formatter PCAS, DC Controller PCAS, optional memory PCAS, and the Fusing Assembly will be available. Ml other failed PCAS will normally be dismrded when discovered to be defective. Service parts may be ordered from Hewlett-Packard's Support Materials Organization (SMO) or Pam Center Europe (PCE). Part numbers can be found in Chapter 8 of this document.

Support Materials Organization 3625 Cincinnati Avenue RocMin, California 95677-1297 (800) 227-8164

Parts Center Europe Wolf-Hlrth Strasse 33 D-7030 Boeblingen, West Germany 0049-7031-140

1-17

HP 33440/HP

33449

COMBINED

SERVICE

MANUAL

Consumables

and Accessories

Consumables may be ordered from Hewleti-Packard's Direct Marketing Division (DMK) and are often available through an authorized Hewlett-Packard deder. The telephone number for DMK is 800-538-8787 (In California 408-738-4133). Mthough they should not be used as a part of normal repair operations, more common consumable and accessory part numbers can be found in Chapter 8 of this manual. Current font cartridges, cables, and miscellaneous accessories and part numbers can be obtained by dling the DMK number above and requesting a current catiog.

1-9. WARRANTY STATEMENT
General
The fo~owing material is taken from the bserJet 111Printer User's Manual with only slight changes. Unless specifidly noted, it applies to the LaserJet series II as well.

Warranty
This warran~ gives you specific legal rights. You may dso have other rights which vary from state to state or province to province.
One-Year Limited Warranty

Hewlett-Packard warrants its computer hardware products against defects in rnaterids and workmanship for a period of one year from receipt by the end user. During the warran~ period, HP will, at its option, either repair or replace products which prove to be defective. Should HP be unable to repair or replace the product within a reasonable amount of time, a refund of the purchase price may be given upon return of the product.
Exclusions

The warran@ on your LaserJet HI printer shall not apply to defects resulting from: Improper or inadequate maintenance by customer. z Customer-supplied software or interfacing. s Unauthorized modiflmtion or misuse. u Operation outside of the environment specifications for the product. s Operation of non-supported printing media. s Duty cycle abuse (see note on next page). , Operating the printer from a mechanid switchbox without a designated surge protector. w Improper site preparation and maintenance. u Use of non-Hewleti-Packard EP-S Cartridges, memory boards, or interface boards.
s

1-18

HP 33440/HP

33449 COMBINED

SERVICE

MANUAL

Note
Ej

Operation of the printer beyond the limit of its duty cycle (printing greater than the equivalent of 12,000 (HP 33440) or 16,000 (HP 33449) single-sided pages per month) shall be deemed printer abuse and dl repairs thereafter will be billed on a time and materials basis. If you are using a mechanid switchbox, ensure that it is equipped with a surge protector. Damage to your printer could occur from the use of unprotected mechanid switchboxes.

The warranty period begins either on the date of delivery or, where the purchase price includes instigation by Hewlett-Packard, on the date of instigation. Your LaserJet III printer must be serviced by one of the authorized repair depots within the country of original purchase. Customer shall prepay shipping charges (and shall pay all duty and taxes) for products returned for service. Except for products returned to the customer from another country, Hewleti-Packard shall pay for return of products to the customer. If the unit is repaired by an authorized dealer, you will need to negotiate the method and cost of returning the unit with the dealer. YOUmay convert your one-year warranty to a 90-day on-site service agreement any time within 90 days of purchase. Contact your dealer or HP Sales Representative for details regarding this option.
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. Some states or provinces do not allow limitations on how long an implied warranty lasts, so the above limitation or exclusion may not apply to you. However, any implied warran~ of merchantability or fitness is limited to the one-year duration of this written warranty.
Service During the Warranty Period

If your hardware should fail during the warranty period, bring the equipment to an authorized HP Dealer Repair Center or send the equipment to one of the HP Field Repair Centers. When sending equipment to an HP Field Repair Center or Dealer Repair Center, follow the repacting guidelines listed below. MSO, complete and enclose the Service Information Form beginning on page 8-9 (HP 33449 only) of the User's Manual. Insuring the equipment for shipment is recommended.

warning

Shipping damage as a result of inadequate packaging is the customer's responsibility. Use the original packing materials whenever possible.

1-19

HP 33440/HP

33449

COMBINED

SERVICE

MANUAL

Service After the Warranty Period

If your hardware fails after the warran~ period, contact an Authorized HP Dealer Repair Center. If you have an HP Maintenance Agreement, request service under your agreement. When sending equipment to an HP Field Repair Center, follow the repacking guidelines Oisted in the User's Manual). Mso, complete and enclose the Sefice Information Form (in the User's Manual) and enclose a copy of proof of purchase. Insuring the equipment for shipment is recommended.
Repacking
s s

Guidelines

for Returning Your Printer

Remove any font mrtridges instiled in the pfinter. Remove the EP-S Cartridge and the Fuser Cleaning Pad. s Remove any non-HP accessories (if instiled). s Remove paper trays, but include them in the box with the printer. s Use the ori@nd shipping container and packing materials, if possible. s Include the completed Service Information Form. Include print samples which illustrate the problems you are having, if applicable. w Include 50-100 sheets of any problem paper or forms, if possible.

Note
q @P .bJt.: . @.,,

If you have already disposed of your printer's packaging materhd and are unable to locate another package, the packaging can be ordered from HP's Support Materials Organization at the following phone numbers: United Stites: Canada Europe: 800-227-8164 416-678-9430 41-22-83-81-11

Ask for part number 33440-00908 for the HP 33440 or 33449-00908 for the HP 33449. The proper packaging material @ox and inserts) will be sent to you for a nominal charge. (For further packaging information on both printers, see Chapter 3, Section 3-2 of this manual or Appendix A (HP 33440) or Appendk B (HP 33449).)

1-20

S;TE PLANNING AND REQUIREMENTS

2.

sm F~NG

AW REQmRmm
. . . . . . . . , . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2-1. INTRODUCTION . . . . . . . . . . . . . . . . . . 2-2. sITEREQumMENTs +... . . . . . . . . . . 2-3. STORING AND WDLfiG EP-S CARTRIDGES . . . . Storage tith Packaging Intict . . . . . . . . . . . . . . Storage Mer Opening Packaging . . . . . . . . . . . . . Storage Conditions . . . . . . . . . . . . . . . . . . Handling Suggestions . . . . . . . . . . . . . . . . . 2-4. PAPER SPECIFICATIONS . . . . . . . . . . . . . . Genera l . . . . . . . . . . . . . . . . . . . . . . . Paper T~es to Use . . . . . . . . . . . . . . . . . . . Paper T~es to Avoid . . . . . . . . . . . . . . . . . . 2-5. E~LOPE SPECIFICATIONS.. . . . . . . . . . . Genera l . . . . . . . . . . . . . . . . . . . . . . . Envelope Procurement Recommendations . . . . . . . . . Envelope T~es To Avoid . . . . . . . . . . . . . . . . Envelope Construction and Size . . . . . . . . . . . . . 2-6. ~HES~ MEL AND OWRHEAD TRANSPARENCY Adhesive Labels ...,..... . . . . . . . . . . . Overhead Transparencies . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SPEC~ICATIONS . . . . . . . . . . . . . . . .

. . . . . . .

2-3 2-3 2-4 2-4 2-4 2-4 2-5 2-6 2-6 2-6 2-6 2-8 2-8 2-8 2-9 2-9 2-11 2-11 2-12

2-1. Printer Space Requirements . . . . . . . . . . . . . . . . . . . . . . . . 2-2. Toner Distribution and Storage . . . . . . . . . . . . . . . . . . . . . . 2-3. Good and Poor Envelope Construction . . . . . . . . . . , . . . . . . . .

2-3 2-5 2-8

2-1

HP 33440/HP

33449 COMBINED

SERVICE

MANUAL

Tables
2-1. 2-2. 2-3. 2-4. 2-5. EP-S Cartridge Storage Conditions With Pa&ging Paper Specifiwtions . . . . . . . . . . . . . Envelope Specifimtions . . . . . . . . . . . . Adhesive hbel Specifiwtions . . . . . . . . . Transparency Specifimtions . . . . . . . . . . Intact . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-4 2-7 2-1o 2-12 2-12

HP 33440/HP

33449 COMBINED

SERVICE

MANUAL

2-1.NTRODUCTION I
HP 33440 and HP 33449 printers are mrefnlly adjusted and inspected before they are shipped. To maintin the performance level set at the factory, correct selection of a location is ~remely impo~nt. The service representative should filly understand the functions of the printers to ensure selection of a suitable lomtion.

2-2.ITE S REQUIREMENTS
The HP 33440 and HP 33449 printers are designed to operate in a clean environment, preferably in an area not subject to excessive mechanid shock, vibration, or a wide range of temperatures. Mthough air conditioning and power conditioning are not required to ensure reliable operation, the environment specifications listed in Chapter 1, Section 1-3, should not be exceeded. The following suggestions should be taken into consideration prior to instigation The printer should not be instiled near water faucets, humidifiers, refrigerators, or similar devices that affect the environment. A location where the temperature changes abruptly, such as near an air conditioner, should dso be avoided. The printer should not be exposed to open flames, dust, ammonia fnmes, and direct sunlight or other excessively bright light source at anytime. The room should be well ventilated. The printer should be intiled on a sturdy, level surface. Stilcient space should be protided to permit unimpeded printer operation and adequate ventilation (see Figure 2-l).

57" (144 cm) +

I
m 22" (55 cm)
4

8" (20 cm)

*

I

8" (20 cm)

Figure 2-1. PrinterSpace Requirements

2-3

HP 33440/HP ~.~m ~~~~j~~

33449 COMBINED ~~~

SERVICE

MANUU ~p.~ ~~~~~~~~~~

~~~~~~~~

The EP-S Cartridge can be adversely affected by the environment and time. Careful atiention shotid be given to the fo~owing information about storing and handting cartridges.

Storage with Packaging

Intact

The following conditions should be observed: 1. Keep the EP-S Cartridge out of direct sunfight or other bright light. 2. Keep the EP-S Cartridge on a secure, level surface where it is not likely to be bumped. Under warehouse conditions, be sure the storage area meets the conditions in Table 2-1.
Table 2-1. EP-S Cartridge Storage Conditions With Packaging Intact

Severe Conditions (18 Days) Maximum Temperature Change (3-Minute Period)

High 350 to 400 c Low ­20° to 0° C High 40° to 15° C Low ­20° to 25° C

High 85 to 95% RH Low 10 to 35% ~ n/a

Toti Storage Time (Storage + Use): 2.5 years

4
n/a

460 to 760 mm Hg (0.6 to 1 atm)

460 to 760 mm Hg (0.6 to 1 atm)

Storage After Opening Packaging
The drum in the EP-S Cartridge uses a photosensitive organic coating that deteriorates when exposed to strong fight. The toner in the EP-S Cartridge mn dso be affected by the environment. For these reasons, the customer must be fully informed about the correct method for storing and handfing the cartridge. me EP-S Cartridge must be Mly used within Sk months after it has been removed fim its pachging. Storage Conditions 1. Do not place cartridges in tlre~ sunfight or near a window. Mso, do not leave them inside an automobile for a long period of time in warm weather. (These conditions apply even if the cartridge is still in ih package.) 2. In addition to avoiding areas with constant high or low temperatures or relative humidity (as listed in Table 2-l), avoid lomtions subject to abrupt changes in either temperature or humidity, such as nmr an air conditioner. 3. Do not Wore cartridges in dusty locations and avoid exposure to ammonia gas or other organic solvent vapors. above 35° C (95° F). 4. Do not store the EP-S Ctidge
5. Never qose -- Note the mrtridge to tempemtures above 40° C (104° ~.

The expiration date specified on the cartridge box is 2.5 years (storage time plus use time) after the dati of manufacture, assuming an intact storage bag. E the bag is broken, the maximum storage-plus-usage time is six months.

2-4

HP 33440/HP Handling Suggestions

33449 COMBINED

SERVICE

MANUAL

1. When institing a cartridge, slowly rock it 45 degrees about its long axis (see Figure 2-2) about

five times to distribute the toner evetiy. 2. As shown in Figure 2-2, do not stand the cartridge upright invert i~ or handle it rougMy.

3. Do not touch the surface of the drum when opening its protective shield on the bottom of the

EP-S Cartridge. If it becomes absolutely necessary to cl-n the drum, use only toner app~ed with a dry cloth. Do not wipe with a d~ cloth and do not me any solvents. 4. Do not attempt to disassemble or refill the EP-S Cartridge. 5. Do not expose a tidge to unnecessary vibration or mechanid shock.

6. Nthough an EP-S Cartridge has fight-blocking shutters to protect the photosensitive drum, exposure to light for a long period of time may muse fight Orwhite arias to appear on prints. If this happens, stop the printer and wait a few minutes. This shotid efiminate the problem. In extreme cases, some life may be restored to the drum by placing the EP-S Cartridge in a dark place for an extended period of time. If drum exposure has been excessive, the EP-S Cartridge may require replacement. 7. If it becomes necessary to rotite the drum, always turn it in the same direction it turns while making prints. If it is turned backward, the spring-loaded contact that appfies the developing bias to the inside rim of the developing cytinder may be bent backward so that it no longer contacts the cylinder, thus preventing proper image development. Note 1 TV Normal room light measured a few meters from a window on an average day, is about 1,500 lUX. Do not expose the photosensitive drum to tight of this intensi~ for more than five minutes. H accidentiy exposed under these conditions, the EP-S Cartridge can be stored in a dark place to recuperate, although an image may be retained on the drum for some time. Direct sutight is 10,000-30,000 lUX. A dmm exposed to light of this intensi~ may be permanently damaged.

2-5

HP 33440/HP 2"4. PAPER

33449

COMBINED

SERVICE

MANUAL

SPECIFICATIONS

General
HP 33440 and HP 33449 printers are designed to work well with most types of xerographic and bond paper. However, some paper variables may have a significant effect on print quality or handling reliabili~. Use of the following guidelines when choosing paper will ensure maximum printer performance.

Paper Types to Use
To obtain the cleares~ sharpest images, paper manufactured for photocopying, such as Canon NP or Xerox 4024, should be used. Genetily, these types of papers are manufactured to specifications that provide desirable characteristics for laser printer image qudi@ and paper handling. The supplier should be informed that the paper or envelopes are to be used in a laser printer. Aways test samples of the paper before buying to ensure that it provides desirable performance. Preprinted papers should use inks that can withstand the temperature of the printer's fusing process. For some applications, cotton bond paper may be preferred. Several cotton papers are now being manufactured with properties optimized for laser printing. HP has tested cotton content papers such as Gilbert Neu-Tech and Neenah NP with satisfactory results. Many other types of cotion bonds will work well in these printers. However, always test paper to ensure desirable performance, Paper having a rougher surface, such as coc~e or laid finished paper, or paper that is wrinMed or puckered may exhibit degraded performance. Note .Pfl w HP neither warrants nor recommends the use of any particular paper. Paper properties are subject to change by paper manufacturers, and HP has no control over such changes. The operator is responsible for the quality and performance of paper used with the printer.

Paper Types to Avoid
Some specific types of paper may not perform well or may damage the printer. (See dso "Envelopes Types to Avoid" in Section 2-5.) Paper types to avoid are: Those not meeting the specifications given in Table 2-2. Extremely smooth or shiny paper, or paper that is highly textured. Coated or chemidly finished papers. Damaged or wrin~ed paper, or paper with irregularities such as tabs and fiples. Letterheads using low temperature dyes or thermography. These materials may transfer onto the fusing ro~er and cause damage. Any preprinted paper should use inks able to withstand 200° C (392° F) for 0.1 second. Multipart forms or mrbonless paper.

Caution
o

Damage or other defects mused by the use of papers listed under "Paper Types to Avoid" above and media with tabs, clasps, stiples, or other objects attached to them will not be covered by HP warran~ or standard HP service agreements.

2-6

HP 33440/HP

33449 COMBINED

SERVICE

MANUAL

Table 2-2. Paper Specifications

Ash Content Basis Weight Brightness Ctiper Furnish Curl Cut Edge Conditions ElectriA Surfaces Resistitity Electrid Volume Resistiti@ Finishing Fusing Compatibility

]Not to exceed 10%.
160 to 135 g/m2 (16 to 36 lb.). ]83% minimum. 13.0 to 7.0 roils (0.076 to 0.18 mm).

1100% chemid

wood pulp and/or cotton fiber.

Ream: mat within 0.3" (8 mm). Printed: Flat within 0.8" (20 mm). ICut with sharp blades with no tisible fray.
2.0 to 15 x 1010 ohms/sq. (conditioned @ 23° C & 50% RH),

1.2 to 15x 1011ohms x cm (conditioned @ 23°C and 50% RH). \Cut sheet to within *0.031 in. (.79 mm) of nominal, corners 90° *0.2°. Must not scorch, melt, transfer material, or release haardous emissions when heated to 200°C (392° F) for 0.1 second. Any pre-printed sheets must use inks compatible with the fising process. lLong grain. 4% to 6% by weight. 85% minimum. Polylaminated moisture-proof ream wrap. 160 to 250 (Sheffield). (The' rougher surfaces tend to degrade print quality.) 1.6 to 7.5 machine direction. 0.6 to 3.5 cross direction (Taber). 12 minimum (Dennison).

Grain Moisture Content Opacity Packaging Smoothness Stiffness W= Pick

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2"5.NVELOPESPECIF!CATIONS E
General
A wide varie~ of envelopes have been tested and most have performed acceptably. However, some envelopes til not feed through the printer because of their construction. A suitable envelope shotid have not more than two thicknesses of paper along the leading edge (the edge that enters the printer fir~ see Figure 2-3) and the lmdlng edge should be straight with a sharp, well-creased fold. ~lmsy envelopes lacking stiffness or those having curved leading edges fi not retiably feed into the printer. Nso, envelopes having "baggy" construction may writie w~e going through the printer's fnser. Poor resdts dso occur when envelopes are folded smaller than normal, musing a thick leading edge near a corner. The folding accuracy of some manufacturers' envelopes may vary enough to cause some envelopes to feed well and other, apparently similar, envelopes to jam.

Note
n

The Face Up (rear) Output Tray - the most direct path for envelopes and other media - should be used to reduce wrin~lng and curl.

Envelope Procurement

Recommendations

Purchase qudi~ envelopes only from a supplier who understands that the envelopes will be used in a laser printer. Envelopes should lie flat, have folds that are consistent and sharp, and be packaged in a protective box. Envelope samples should be tested before purchasing. Consistent, long-term performance requires quality control from the envelope manufacturer and proper handling until use. Envelopes should be stored where they m he flat and the edges will not be damaged. They should be kept away from efiremes in temperature and humidi~ and should be allowed to reach room temperature before use.

Figure 2-3. Good and Poor Envelope

Construction

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Envelope Types To Avoid
s u s

Envelopes that do not meet the spetilmtions fisted in Table 2-3. Envelopes constructed of paper with weight greater than 24 pounds (9Og/m2). Poorly manufactured envelopes with leading edges having more than two thicknesses of paper and that are not consistently square and straight (see Figure 2-3). Envelopes with "ba~" construction or folds that are not sharply creased. printer.

s

N Envelopes that have drmdy been printed on with a bserJet
s

Envelopes with cl=ps, snaps, or tie strings.

m Envelopes with transparent windows, holes, perforations, or cutouti. 9 Envelopes using paper, inks, adhesives, or other materials that discolor, melt transfer material, or release hazardous emissions when exposed to 200° C (392° F) for 0.1 second. Envelopes made with extremely smooth, shiny, or recycled paper. Envelopes that are very rough, highly te~red, or deeply embossed.

Envelopes which do not tie flat or that are damaged, curled, wrinMed, or irregularly shaped. Envelopes having an open flap with adhesive exposed so that closing the flap seals the envelope. Envelopes that use encapstiated ~es rely on pressure to sed them. of adhesive that do not require moistening but instead

--

caution

Under no circumstances should envelopes with clasps, snaps, windows, or synthetic materials be used; severe damage may occur to the printer. Such damage is not covered by HP warran~ or standard HP service agreemen~.

Envelope Construction

and Size

Both the HP 33440 and HP 33449 use an adjustable envelope cassette. Standard envelope sizes that = be used are Commercial 10 Monarch
C5:

4+11~ g;tl 3~11~ 7+11
162 mm x 229 mm llOmm x 220mm

International DL

Non-standard envelopes that fdl within the folloting size ranges can dso be used Minimum size: Maximum size: 3.5" x 7.5" (89 mm x 190 mm). 7.2" x 10.1" (182 mm x 257 mm).

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# v

Hewleti-Packard neither warrank nor recommends the use of a particular envelope because envelope propetiies are subjed to change by envelope manufacturers. Hewlett-Packard has no control over such changes. The entire responsibfity for the quality and performance of envelopes ties with the customer. Mthough testing helps to characterize an envelope's performance, long-term satisfaction requires process qufllty control by the envelope's manufacturer and proper handling until use.

Envelopes should meet the specifications Ested in the following table
Table 2-3. Envelope Specifications

Basis Weight Caliper Curl Finishing

16 to 24 pounds (17" x 22" per 500 sheets) (60 to 90 grams/sq. meter). 3.3 to 5.5 tis (0.084 to 0.14 mm) single layer thickness.

Must tie flat with less than 0.25" (0.064 mm) curl across entire surface. Envelopes must be accurately (+0.04" (0.01 mm) of normal) folded so there are no more than tio thicknesses of paper at the leading edge, Ml folds must be sharply creased and construction must be tight. 100% chemid wood pulp and/or cotton.

Furnish Fusing CompatibKlty Moisture Content Paper Smoothness

I

Must not scorch, melt offset or release hmardous emissions when heated to 200° C (392° F) for 0.1 second. 4% to 6% by weight. Paper used for envelope construction must meet dl the paper specifications listed in Table 2-2. 100 to 250 (Sheffield). (The rougher surfaces tend to degrade print quality.)

Note
#

Envelope performance in both the HP 33440 and HP 33449 printers may be influenced by properties other than those specified here. True verification of performance requires actually running the envelope through the printer. Consisten$ acceptable, long-term pefiormance of envelopes in this printer requires careful process qutity control by the envelope manufacturer and proper handling until use by the customer.

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2"6. ADHESIVE

LABEL AND OVERHEAD TRANSPARENCY

SPEC1FICATIONS
HP 33440 and HP 33449 printers will dso print on certain adhesive label and overhead transparency media. (Label and transparency part numbers have been listed as of this printin~ contact DMK for current information.)
caution

#

Use of labels and transparencies not designed for the HP 3.3440 or HP 33449 printers may result in damage not covered by HP warran~ or standard HP service agreements. Use only labels and overhead transparencies recommended for use in laser printers.

Adhesive Labels
An adhesive label is paper with a pressure-sensitive adhesive backing. The three components of label stock are the top or face sheet (the actud.label), the adhesive, and the liner or carrier sheet, sometimes referred to as the backing. Use the rear output tray when printing labels to reduce curl. The elementi of label stock include:
Top or Face Sheets:

The top sheet, which is the printing surface, is usually composed of photocopy paper. The carrier sheet should be bleached sulfate stock, silicone coated for easy release of the face sheet. The adhesive should be acrylic-based since such material is more stable than other adhesives at the high temperatures encountered in the printer's fusing process.

Carrier Sheeti

Adhesive:

warning P Q

Air quafity testing has been conducted on a similar Hewlett-Packard printing product in accordance with National Institute for Occupational Safety and Health (NIOSH) test procedures using an acrylic-based and standards. adhesive As a result of this testing, only labels for use. are recommended

Adhesives should not come in direct contact with any part of the printer because the label stock may stick to the photosensitive drum or the rollers, causing toner offset or paper jams. No adhesive should be exposed between the labels. To test label stock for adhesive exposure, a sheet of plain paper should not adhere when pressed against a sheet of label stock.
s

Label arrangement Labels should be arranged on the carrier sheet so that they cover the entire page, with the only reposed spaces being lengthwise down the sheet. Using label stock with spaces betieen labels often resulti in labels peeling off during the printing cycle, causing serious jamming problems. Do not remove any excess top sheet material from the carrier sheet until tier printing. These precautions will help prevent problems restiting from labels pulling loose from the carrier sheet. curl: Labels must lie flat with no more than ~ inch of curl in any direction.

I kbel
s

Poorly mantiactured labels: Do not use labels having wrin~es, bubbles or other indications of delamination; they may result in damage to the printer due to labels peeling off.

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Face Sheet Fusing Compatibility

Ml adhesives, Eners, facestocks and other materials used in the label construction must be compatible with the heat and pressure of the fusing process. Materials must not discolor, melt, offset material or release h~ardous emissions when heated to 200° C (392° F) for 0.1 seconds. Toti construction diper must not exceed 0.0070 inches (0.18mm).

Construction

HP has tested labels-such as Ave~ labels specified for laser printers and Hewlett-Packard LaserJet labels-and found their performance to be satisfactory. Hewlett-Packard Labels (8 ~" x 11", 100 Sheets):

9

p/N

92296A

II:

x

2:**

s p/N s s s s

92296F:

;II

x

l;II

s s s s

Pfl

g22g6B: l~!~ x 4]!

P/N g22g6C: 11(x 411 P/N g22g6D: 2*!x 4$!
P/N g22g6E: 3$ II x 4$s

P/N g22g6@ $*8x 3~*# P/N g22g6H: 2~B* 2~** x P/N 92296J: 1+11x 411
P/N g22g6K 8+11x 11~1

Caution

o

Remove each label immediately fier printing. Bemuse they may stick together due to their heat retention properties, do not allow them to stack up in the paper tray. Always use the Face-Up (Rear) Output Tray to prevent possible labeljams and resultant damage to the printer.

Overhead Transparencies
Hewlett-Packard has tested overhead transparency film such as HP overhead transparencies and found the performance acceptable. Use the rear output tray when printing transparencies to reduce curl. Overhead transparencies should meet the specifications provided in Table 2-5. Table 2-5. Transparency
Thickness Cutting Dimension Tolerance Specifications

0.100 to 0.110 mm 3.9 to 4.5 roils
& 0.7 mm

0.031 inch

Cutting Angle

900 + 0.20

Hewlett-Packard offers the following overhead transparencies through its Direct Marketing Division:
s s

P/N 92296T: 8;" x 11", 50 Sheets P/N 92296U: A4 (210 mm x 297 mm), 50 Sheets

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3
INSTALLATION AND CONFIGURATION

contents
3. INsTmMmoN m comGmmoN 3-1. mTRoDucTIoN . . . . . . . . . . . . . . 3-2. UNPAC~G AND INSTALWTION . . . . . UnpacHng Instructions . . . . . . . . . . . . . Hardware Instigation . . . . . . . . . . . . . . Genera l . . . . . . . . . . . . . . . . . . Interface Cabling . . . . . . . . . . . . . . . Serial Interface Setup. . . . . . . . . . . . . RS-422 Configuration . . . . . . . . . . . . . Sotiare Intimation . . . . . . . . . . . . . . MS-DOS System Configuration . . . . . . . . In Caseof Difficulty. . . . . . . . . . . . . . 3-3. USING THE CONTROL PANEL . . . . . . . Overview . . . . . . . . . . . . . . . . . . . Control Panel Functional Description . . . . . . . Genera l . . . . . . . . . . . . . . . . . . Indicator Descriptions . . . . . . . . . . . . . Key Descriptions . . . . . . . . . . . . . . . Default Setiings and Restati Routines . . . . . . Default Settings . . . . . . . . . . . . . . . Factory Defatit Settings . . . . . . . . . . . . Envelope Cassette Size Setiing . . . . . . . . . . Resetting the Printer . . . . . . . . . . . . . . Menu Reset Routine . . . . . . . . . . . . . Cold Reset Routine . . . . . . . . . . . . . . 3-4. USING THE PR~TING AND CONFIGURATION Overview . . . . . . . . . . . . . . . . . . . Printing Menu Setiings . . . . . . . . . . . . . Configuration Menu Setiings . . . . . . . . . . Symbol Sets . . . . . . . . . . . . . . . . . . Auto Continue . . . . . . . . . . . . . . . . . Interface Type . . . . . . . . . . . . . . . . . Resolution Enhancement (HP 33449 Only) . . . . Print Density and Resolution Enhancement . . . . Page Protection (HP 33449 Only) . . . . . . . . . 3-5. FONT PRINTOUTS . . . . . . . . . . . . .
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. . . . . . . . . . . . .

MENUS

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3-3 3-3 3-3 3-4 3-4 3-4 3-4 3-5 3-5 3-6 3-6 3-7 3-7 3-8 3-8 3-8 3-8 3