HP IIIP, IIP, 2000, IIID, IID Service Manual

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Classic Printers

La.er.kt II (33440)

LaserJet ILD(3344~

LaserJ@ IIID (33459)

La.wrJetIIMUIP (33471/33481)

LaserJd III (33449)

LaserJ& 2000 (2684)

Volume 1

April 1995

Revision 13

Notice

Tbisdoeument SmIercedes allmeviousrevisions of the LaserJet/JumboJet

‘fkoubleshoothw Guide.

The information contained in this documentis subject to change without any notice.

Nopsrtofthisdocumentmay bephotocopied,reproduced,ortramdatedtithout the prior written consent of Hewlett-PackardCompany.

Editor

Bob Edwards, UK Response Centre

iipti 1995

Revision 13

TheClassicLaserJetTroubleshootin~ Manual

Contents Pa~e-Section 1

Contents

Introduction Othemsejidbooti, videos,etc

LaserJetProductHistory

Gmnom%sg”necross-r@rencemabix

PCLlevels

PaperRelatedPmblems/PaperTroubleshooting

Paper’’Pounds(lbs)toOrams equivalencetable

PaperSkew&Registration Specifications.

TonerCartridgeTroubleshootingProcess.

TonerCarhidgeProdnctnumber& Weight

TonerCurtridgelije TonerCbrti”dgeLijeeqectamyinpages Toner(lmtridgeshelfife TonerCar&idgelotcodeordatecodedecoding

EnginetestwithFormatterPCA de-installed

Ha&e&testpowerdompmcedure

I/OCableMonnation

SerialCables connectedtoPCsor3000/9000hosfi HP9000RJ45114Kxcablescon@wation.

Cor@qningHPLaserJetson HP3000

HP3000Tenn-T~e information

DataTfansfer Rates(Serial&Parallel)

NovellNetworks- 23I/ONotReadyTroubleshootig

XOJetDirect’’StatusPage”

Jet’Iest-TheCELaserJetConfidemceTestTool

1-1

—

The Classic LaserJet TroubIeshootinp Manual

Contents Pave - Section 2

2-1

The Classic LaserJet Troubleshooting Manual

Contents - Section 3

Booklet Organisation

Service Notes; SXEngine Re~rbishment Kits; Service Test Tool; Power Supply /Error 12 Troubleshooting Flow Diagram.

Faults with Error Nnmbers.

Miscellaneous Problems.

Print Quality Problems.

Paper Path Problem.

PostScript Problems.

Manual Paper Feed Problems. LJIIIIIID Powered Envelope Feeder Problems.

3-1

The Classic Laser.Tet Troubleshooting Manual

Contents Page - Section 4

4-3

4-5

4-7

4-11 Print Quality Problems

: 4-17 Paper Path Problems

,, ,,,

,: 4-18 Optional Paper Tray Problems

“ :’4-19

Booklet Organisation & Service Notes

Faults with Error Numbers

Miscellaneous Problems

PostScript Problems

4-1

5-1

W mauurd is designed to help CE’Sand Cd @ersrntbeir gosl ofproviding data to help quic~resolve LaserJet or JuruboJetproblems. Most oftheproblems cfied are tidts that have actually occured in the field and many ofthese may not be included m any service Lusnusl.

This book (Volume 1)ticludes allthe classic old LaserJets andthe LJ2000. These are Iistedbelow

2686A 2686D 33440 33447 33449 33459A 33471 33481 2684~D

LaserJets manufactured and introduced afierthose above will appear m latervolumes. Volume 2willrnclude LJ4, LJ4plu~ LJ131S~4S~ LJ4L, LJ4P, LJ4V, ColorLJ andthe C30 printers. This shodd be availableby May 95.

LaserJetI LaserJetLV LaserJetII LaserJetILD LaserJetIII LaserJetIID LaserJetIIP LaserJetflLP

LJ2000

Other UsefulBooks/Etcto Usein~oubIeshooting Process:

* HP herJet Reference Guide (Green Book). * HP LurerJetFamily Quick R#erence Service Guide (5961-071 6; Pocket Book)

* HP 2686A/2686D Combined Service Manwl (02686-90920) [1] * HP 33440& 33449 Combined Service Manual (33449-90906) fl] * HP 33447&33459 Combined Service Manual (33459-90906) 11] * HP 33471&33481 Combined Service Manual (33481-90951) Ill * HP 2684A/P/D Sewice Manual (02684-90903) II j

* Paper Specl~cation Guide (5002-1801) *Paper Specification Video (PAL 5961-0712) @TSC 5961-071 1)

[1] Note: ~ese mti maybe out ofproduction

1-3

Product Histom

‘~

~;~,~...;::;;.,

~@y+:@::$w&&,,....,*,,,:,?,9::f,>

r. ,,,,.,LI

~%%&i:. EB*<“vi’%is~:wik:

2686A (LJI) 1984 2686A+ (LJI+) 1985 2686D ~)

1986 Sprout-D

Sprout Sprout +

,y:$-<t;fi,f~,,;

) ?2<.t y:.?~i+$j?

%*y:

...........! ,,,,,,,,.!+,,,,, ,,.!

:$*&k %i!iil%:$w;

8 8 8

3 4 4

IOK 10K 15K

33440 (m) 1987 BUD 2684A/P/D (LJ2000)

33447 (LJllD)

33471 (LJIIP)

33449 (LJ131) 33459 (L.nllD) 1990

33481 (LJB3P)

C2007A(LJIIP+)

Cannon

En@nes

1987 JumboJet

1988

1989 Spud

m 33481A IaD 33459A m 33449A

m 33471A LBP-LX IID 33447A E 33440A

BUD-D 8 4

1990 Galaxy

1991

1992

@w-D

Challis 4

Suabearn

C2007A mP-M

8 8

LBP-LX LBP-RX LBP-SX

DP-RX mP-sx

4 12K

5 16K 5 20K

4 8K

lOOK

16K

ID(500+) 2686D LBP-CX 1+

I 2686A

2000 26 S4AtPfD

2686A+ LBP-CX

mP-cx

LBP-20

1-4

PCL Levels

AllHPLaserJetsuseHewlett-PacdcardsPrinterCommandLanguage(PCL). Wbringsall

tkeseprintersuuder a common and consiient control Stru-e whichti ensure compatibtity tiomonepriuterto snother.

mere are 5 PCL levels that exi~ at the time of assembling this book. Each higher level

supercedesthe previous leveLIffor instance aLJI were sentkigherlevel PCL commands, such astkoseused with a LJ4, tiese wotidbe ingnoredbytke LJI. Seetablebelow forPCL strutie:

Simple print& Space

wet

HP@etJet

Plus avari~ of fore, paper sizes &Margin controL

Plus proportional spacing, bolt italics &merged text and ~apkics.

Plus additional pornt sizes & ~efice~ downIoadable sofi-fonts, electronic forma & ~ading.

Plus scalable typetices, enhanced page formatting, ~-GL/2 forfkstvector grapkics printing.

Plus support for 600dpi ptiters, enhanced vector graphics improved data compression.

HP2932/34 dot matrix HP 256x impact printers

HP DeWet fkmily HP2235ARuggedwriter

hserJetI

HP LaserJetI+ /ID HPLaserJetII HP LaserJet 2000

HPLaserJetIIIfami~

HP DeskJet 1200C

LaserJet 4family

1-5

LaserJets & Paper Related Problems

Paper related problems are probably the most common fault that HP cuwomer n@-s hiweto resolve. Most customers never really consider how important paper is to nsureLaserJet printers perform we~ free of paper jams and print quality problems.

This section provides guide lines for the CE to follow ifpaper is suspected to be to be le customers problem

Note This is apaper relatedpbm such as Paperjams, creasing, , Define ‘ Problem

aper

ath Pbm?

eti WhhXero

80grm Premier

t~n”ng, feeding where media quality could be an issue. Does Paper meet Paper Spec ’sGuide?

Note: Although HP does not recommend a specl~c

paper, Xerox 80 (Europe Only) has beenfound to

operate very well with HP LaserJet Printers.

OK? y

Pneither warrants or recommends the use a particular paper. Media properties are subject to

snge by tie msnticturer & HP has no control over this. me customer assumes allresponsities for the quality &performance of media. me customer should ensure the paper meets cc’sin paper spec guide and then test m quantity to satisfy themsehes the media operated >11m the LJ.

Note: Inform customer there w well be a p~er quality

p~oblem still, ask them to ~seXerox 80 ~pbrn -

returns, z~OK advise the use of high qualiy Laser

paper to resolveproblem.

~otc Doespaperconform topaper spec guide(5002-

1801)?It is the customers responsibili~ to ensure

paper confoms topaper spec’s. It is also their

responsibility testpaper thoroughly b~ore

purchasing inquanti~.

Note Escalation may be appropriate depending oz

the situation. If theproblems arepaper related dismss isme with your local DM &

Etite

1-6

RCE. Remember z~thepbms are causel bypoor quali~paper the ONLY course of action isfor the customer to

use high quali~ laserpaper to resolve their

problems.

CE ‘sActions if Paper Problems are Suspected:

1.Ensure aHigh QualityLaser paper istaken on site (Xerox 80 grm Premier); do NOT leave m car ovemi@t.

2. Take a copy of the paper spec guide (5002-1801) to @e to customer. Ensure your local office has a quan~ to use for this purpose. Does Paper meet Paper Spec’s Guide? Does

media come under the heading of “Papers likely to cause problems or papers to avoid”?

3, Ifpaper ia suspected use “HOWDiagram”to help isolate problem,

4. Keep customer involved at all times, explarnhow important paper is for correct operation of their printer.

5. Use HP LaserJW Reference Ouide (Knowu as Oreen Book) paper section for fiuther media

information. There is a paper suppliers list in this section that customer maywisb to try.

6. Show Paper Video to customer, inappropriate, this will help them better appreciate the

importance of paper when used in ~ LaserJet printers. (596 1-0712 PAL formst) or

(5961-071 1NTSCformat)

Factors that Contribute to paDerPath & Print C)ualitvProbIems:

*Does the media meet the Paper Spec’s outlined m Paper Spec Gnide(5002- 1801)? *Is the customers media m good contilon, damage~ bent, skew, wriukled or “Dog Eared”? *Are media haadling practices beiag observed (loading paper, removing Paper Jams)? *Has the media customer is having problem ever worked? * Is media berng conditioned before use? Media WST stabliae m a normal office

enviroammt for a minimum of 24hr.

* Check the follotig mthe printer operating entionment

- Temperature (best between 20to 24C)

- Humi@ (Beat between 45% to 55%)

- SunJightExposure.

- Clearriness

Media Likelv to tive Paner Related Drob]ems:

HP cannot stop customers using anypartiti paper, but certain paper will give more frequent paper jam or paper path problems. Some of these are:

*Paper too thin or too thick (see caliper inpaper spec ‘s)

*Extremely Shiney or Glossy media. * Recycledpaper that has not be spec ‘edfor LaserJetpn”nters. *Multi-patifom. *Media tkat is damaged, curled, wrinkled, ot of an irregrdar shape. *Papers that do not conform toA4, Letter, etc sues md may be loose or too tight in

paper trays. *Interleaving dl~ment types of *Paper withpevorations *Some coatedpapers.

media.

1-7

*Colouredpapers *Papers too smooth or too rough (See She@eld inpaper spec ‘s) *Papers too dry or too moist *Paper with embossed headers * Two-sided or Duplex printing on a Non-Duplexpn”nter.

*Paper that ha been refed into paper tray, could befrom aphoto-copier. * Prepn”ntedPapers using low temperature inks or inti thatproduce hazardous

emissions. *Labels, transparencies or envelopes that do not meet paper spec ‘s. * tiels MUST cover entire backing sheet with NO gaps which expose adhesives to M. *Envelopes with openjlaps with adhesive exposed. *Envelopes with clasps, snaps, tie strings, windows or~nthetic maten”als *Envelopes with baggy construction orfolds that are not sha~.

Pounds to Grams EauivalenceTable

161bs= 60grtisquare meter 201bs = 75gmma/squsre meter 241bs = 90gratisquare meter 281bs = 105grams/square meter 361bs = 135@square meter

1-8

Paper Skew &Registration Specifications

The skew and registration specifications for some of the models in the HP LaserJet

Familyare@enbelow. Pleasenotethatthe LJ2000 regiater(A4 &Letter) paperfiomthelong

edge, all other W LaserJets are from the short edge. ~esefi~res assume a sheet of paper

with 4 right-angle corners.

Skew (v- z)

The skew tolerance for all HP LaserJets is

1.5mm (0.06m) along the (lefi-hand) len@,

~e. over a distance of 260mm (10.25rn)

Printable

Area

PaDer RWstration Suetilcations Re@strationconcemsthepostilon oftext ontiepaper.

LeadingEdgeofpaper tofirst horiz. dot row thefirstverticaldot row

I 8.Omm+/- 2.Omm (x)[l]

II IID III 5.Omm+/-2.5mm

IIID

IIPflIP+/IIIP

2000 6.0mm+ /- 2.5mm

[1] This is measured using a Self-Test page.

Note: The LaserJet ItP / IIP+ / IIIP and the 2000have a setice adjustment for the top

-gin (leafig edge of paper to fiat hotiontal dot row.) These can only be accessed by service personnel and ahotid only need adjustmmt when the DC Controller PCA is replaced.

5.0mm+/-2.5mm

4.2mm+ /- 2.5mm

4.2mm + / - 2.5mm

3.omm+/- l.omm (x) 5.Omm+/-2mm@)

(X) (X) (X)

(X) 6.Omm+/-2mm(y)

(X)

4.Omm+/-2mm(y)

4.2mm+/-2mm~)

6.Omm+/-2mm(y)

4.25rnm+ /- 2mm(y)

Lefiedgeofthepaperto

4.7mm+/-2mm(y)

4.2mm+/-2nnn(y)

6.4rmn+l - 2rmn(y)

6.4mm+/- 2mm (y)

6.Omm+/- 2mm (y)

4.25mm+ /- 2mm(y)

1-9

Toner Cartridge TroubIeshootin~ Process

When Troubleshooting problema such as Print Qu~, Paper Jams or Gear Noise complaints, it is well worth considering the Toner Cartridge. In partidar ifnon-HP Toner Cartridges are use~ tkese are kuown to give a greater frequency of problems and can easily

lead to c~omer dissatisfaction.

Please note thatHP does not recommend the use of

reasons are cited rnthe HP policy statement wkich canbe found in the HP LaserJet Reference Guide (Green Book) section 5.

Wken Troubleakooting please use the flow diagram below to help decide ifthe Toner

Cartridge is the cause of the problem This can be especiallyuse~ to Call Qualifiers.

Get briefdescription

ofproblem. Deter-

mine if HP or non-

HPToner Cartridges

are used.

Determine exact

nature of problem

No*. In some circmnatauces customers may believe the toner cartridges are HP. Also in a very fw case~there are non-HP cartridge boxes designed to look like HP Toner Cartridges and deceive. ENSU~, wherepossible, customer or CE useHP Toner cartridges to diagnosepoten~”onal

toner cartridgeproblems.

Probkrms fiat Toner Cartn”dgescanpotentionally cause are:

*Paper Jams *Print Quality

-Repetitive marks acrosspage

-LineslBmds downpage

- Compression &Elongation ofcharacters.

-FaintPnnt

- Ghosting images

-Background

* Gears Noises?

*Error4 1/5 1 *Error 41.5( LJ3/4Si) * Toner Dumping or leaking * Toner runs out quickly (Toner Low) * Short Toner Cartridge life *Main Motor Errors (e.g. Error 57LJ3/4Si)

Note: If problem is sbnilar to above, before embarking on

replaa”ngmajor LJ assemblies, try replacing tie Toner Cartridge. It is quick and ea~ to replace.

non-HP Toner Cartridges. The

Note Did you itdtkdly dia~ose natnre of problem incorrectly? Revisit, determine exact problem again.

1-1o

Toner Cartright Product Numbers& Weiyht

11/m) /m/lJJD

W/m+/m 92275A EP-L

I/lD 92285A EP-c

2000 [1] [2]

Note [1] Box contains WO 0.5 Kilogram bags

92295A EP-S

92282A na

[2] ThisEP Drnmhas a P/N = R44-0230-OOOCN

1375-1325gm l140-lo90gm

48.4- 46.60z 40.1- 38.40z

looo-950gm

35.2- 33.40z

1550gm 1320grn

54.30Z 46.20z

na na

825-775gro

29- 27.30z

TonerCartridge Life

Tke useti expectan~ of toner cartridge Me depends on print den~ setting / Toner coverage (toner usage) imd print pages (mechanical wear). Toner coverage per page is approximately Book) section 5.

570, for more detail please refm to the HP LaserJet Refwence Guide (Green

Life Expectancy for each type ofToner Cartridge is:

HP LaserJet II / IID / III / IID

-4000 pages (92295A) HP LaserJet 11P/ IIP+/ 111P -3500 pages (92275A) HP LaserJet I / ID -3000 pages (92285A)

SheIfLife

Thisis,

if unopened, approximately 2.5 years of storage; tie maximum skelfMe of an

opened cartridge is approximately 6 montks. T’kesefigures are condotiond on tke following

*Store awayfrom direct surdight or other strong lights. *Store as specl~d on the shipping box or horizontally fla~ l~out of box. *Store in normal ofice environment (i.e. a location with regulated temperature

and humidi~.

* Use the carti”dge before the expiry date (stamped on toner cartn”dgebox)

The LaserJet 2000 EP Drum has a storage Me of typically 2 year, provided the dnun is

stored at an enviromnentd speci.tication of O-35deg.C, 35-85% RH 460-760 mrnHg.

Decodintr Date Code or Lot Code of Toner Cartrid~es

Example lot code: 3D12S2

3 =year, 1993 in this case

D = montk ofmantiacture, A=J~ B=Feb, C=Mar, D=Apfi etc

12= day of montk

S1 or S2 = different production lines

1-11

PCAremoved. S@lygain accesstothe Formatterboar~ disconnect it and remove. Locatethe print enginetestbutton, power onprinter audpress~button. Tke only case whereDiviskms

advise this wiMnot work is the C3100A Coburprinter.

ptited. This can be usefi in the following circumstances

1, Thin vertical black line downpage, appurs in sameplace. The FormatterPCA is known

to cause thisproblem. Noteposition of line, remove Formatter, run engine test, has line

disappear?

Formatter Errors that do not allowprinting to occur.

2, 3, Formatter; memo~SIMWs; titpulldown DCpowersupplies. Note, DCpowersupplies

on later pn”nterscan “crowbar”and remain downfor 10 to 15 minutes.

Engine Test with Formatter De-installed

Itsnot commonly known tkat impossibleto ruu the “print engine test” with the Formatter

Of course there will be no displaybut the “Trsrrdines”print of the engine test shodd be

Location of Print Engine Test button

UYID

UIPID/IIIMIID RHS, halfway along, in lower base pan, look for plate witk testprint on it.

~IPIDIIP

LJ2000

LHS (as viewed fiomthe front) very near rear ofprinter, halfway up.

At rear ofprinter, lower rear cover door, look for access hole at top lefi.

Operators ~lay Panel @ly press button. Please note there is also

a“Video Test Button” onthe DC Controller PC~ top LHS.

Half Self-Test Procedure

In some casesit isveryuseflto Iookto see ifthe image appears on the EPDrum To do

this simply

I. Initiate ase~-test

2. ~en thepaper is approximately ka~past the EP Drum power thepn”ntw down.

3. Remove Toner Cmtndge.

4. Is expected image se~-test image on EPDrum?

How cantbishelp dis~ose a problem WeE it splits the ptit quality problem in two. It tellsthe CEthattheproblemis eithera ChsrgeCorons/roller LaserproblemoraTrder tirona/ rollerproblem Tskethe example of “BlankPages”. Ifthe “kalfself-test”is implemented andtke image aPPears on the EP Drum but not the paper, this diagoses as a transfer problem

The “HalfSelf Test” caa help m the following instances

*Blankpages.

*Fain tPtit *Bands down page *Lines down page *Bands across page (Note: timing of the power down iscrucial lo see image on drum) *Pam of image missing.

1-12

I/O Cable Information

PC Sefial Cable Product Information

922S4A Parallel 25 pin-~ 36pm-M 78 (2.13m) for moat IBM & Compatible PCs [1]

C2912B Parallel 25 piu-~ 36 pm-M 9.9fi (3.Om) for most IBM & Compatible PCs [1]

24542D ParMel 25 pin-M/ 36pin-M 6.6R (2.Om) for moat IBM & Compatible PCs [1]

17255D Serial 25 pin F/ 25 pin-M 3.9fi(l.2m) [1] 92219J 24W2G Serial 9 pin F/25 pin-M 9.9fi (3.Om)for most D3M& Compatible PCs [1]

Serial 9pm F/25 pin-M 16.7R(5.Om) [1]

92215S 92215N Phone NET or LocalTa~ Macnetwork kit [2]

Note:

Note Generally all cables connected to PCs, pins are crossed (i.e. pin 2 to pin 3

S@ DINS 6.6fi (2.Om)for Apple Mac [2]

[1] SuitableforLJH/~ /131/~ /~/ ILP+/llIP

Suitable forLJIID/lll/~ /lIP/lTP+/133P

pin 3 topin2)

In general allserialcables connected toHP3000~stems havepin-to-pins connection

(i.e.pin2 topin2 andpin3 topin3).

ADCC25pird25pin:

ATP3pid25pin: Use cables 40242X or 13242X ATP5pin/25pin: Use cables 40242P or 13242P

For 25pm connectors Male-to-Male cable is required to with 2,3& 7 wired prn-to-piu and shielded earth to pin l(connect only one end) Some ready-made cables are available and they are 92219G or 13242N.

9000 MUX RJ45 Cables

For connection from a Mukiplexor on a 9000 host with RJ45 me connection to the serial rnput of tie LaserJet shotid be wired pin to pm as follows

Hoat Printer ~45 >~>>~>>>Y25 piO RJ45 >>>>>>>>>9 pm ml 2 RDl 2

TD 3 3 CTS 4 CTS 4 RTS5 RTS5

Grd 6 7 Grd 6 5

Host Printer

TD 3

1-13

ConfigurinpHP LaserJets on HP3000

configuring the Laserjets on the 3000 use TerrnType 22@CL22 or TermType 26/

When

PCL26. The2686, 2684 and33440have Statusfeedbackfb.uction@ andcanbecotdigared dire~. TheLaserJets mantiactured fiertkeseproducts require an Optional J/O bosrdto be inst~ed. More dti for spectic Laserjets is listed below

LaserJet I/ID (26860) This can be connected directly to the HP3000 as the serial I/O has status feedback. Configuration is acheived via a bank of switches which are accessed by removing the rear panel (4 scrws). Switch setting are:

-OFF(Serial)

-X Baud rate selection

-ON (L3i+ ordy, enables ROBUSTXon)

-ON(DTRpolarityset Hi)

Note: Thestandard2686A First modelproduce~ has on@a sm”alI/O. ~e 2686A+

and the 2686D was ntanuf~tired with both Serial and Parallel I/Os.

Note: See Cabling at the end of this 3000 con$~ation section.

LaserJet II (33440\ Thisptiter ~ has status feedback built into the the I/O and can be directly connected to the HP3000. This configuration settings is acheivedtia the operators front psneL Typical settings are

SYMBOL SET = Roman-8 J/o BAUDRA~ =9600 (Defati) ROBUSTXon DTRPO~ ‘m

=s=

= ON

~$,*.

,!$.>-,.*,>.?:~,f,*;:*<;:,,

,,.,,, ,.:;

,*$ ;y. x$ :V$#$~ .>

*# ,:

,“$/j,,,,,

300 Om OFF OFF 600 OFF OFF ON

1200 OFF ON OFF 2400 OFF ON ON 4800 ON OFF OFF 9600 ON OFF ON

19200 ON ON OW

❑.

,~;, ~~~<:*@$~$j,;; 7:;~

.,.*,. ,.,

Note see Cabling at the end of this 3000 con~guration section.

LaserJet III (33449): IID (3344n: DID {33459)

These LaserJetshasno statnsfeedbac~therefore cannot beconnectedtothe HP3000, exceptvia dummyTenuT~e 18. To connecttotheHP3000 anoptional I/Oboard (260 13A) is required to be installed iu the optional I/O port at the rear of the priuter. This board is no longer available, but ESJ/ExcelJink may ofir an alternative (see HP tierJet Ref@ence

Guide (Green book), page section 7).

Set, via front pane~ I/Oto OPTIONAL.

1-14

aserJetILP (33471), ~+(C2007), IIIP(33481)

These ptiters do not return status and do not have an optional I/O slot. ~ese laserJet,

rerntendedto be cotmected to PCs ordy.

,aserJet2000 (2684A/P/D)

Contignration ofthia printer is acheivedvia 2 banks of rocker *ches on the Formattf ~srd. ~ese are accessed throu~ a fip-down panel on the RHS of the upper section of th rinter@omttersetion).

WITCH 12- all rockers set to OPEN

WITCH 14 1

-OPEN

Baud Rate Selection 2 -X Baud rate seletion 3 -X Baud rate selection 4 -X Baud rate selecdon

5 -OPEN 6 -OPEN 7 -OPEN 8 -CLOSED(SelectDTRpolarity)

-CLOSED(DTRhandahake enabled)

600

1200 2400 011 4800 100 9600 101

19200 110

10 -OPEN

-CLOSED

-CLOSED(Xotioffenabled)

‘oteto Remember:

*HP TerrnTypesfor HP ~stems will send an ESC”E” at the be~”nningof sprint job

to reset theprinterto defardt values.

*Robust Xon MUST be enabled on all HP LaserJetprinters. *AllHP LaserJets run with 8 data bits, no pan”@.

IPE Classic&XL Matrix

001 010

[2] PhgsintoresrqrtionslVOslotsetI/Oto“OP170NAL’’onFrontPanzPJN=26013-60001

[3]~CL26isnot~potied .n~CC;wecable92219G orl3242N@inBpti2.3&7,Shieldpin 1 connct

atone end on@.

[4] TTPCL26

thissttheendofeveryIirre,therefareisslower.Use

13242P (5pin).

[5]LJItP/IR+/IIIPareNOTsuppartedontheHP3000~stems

ispreferredssstatuscheckingisdoneatthebeginning&endofspoofie,TI’PCL22does

cable 40242Xor 13242 (3pin), use cable 40242P or

[6]TheLJ2OOOserislVOboardheeon-bosrdsts@oheckiugPfi=02684-60010 [7]NoIonge.ravaiiable.

1-15

Data Transfer Rates

SERIALTransfer Rate

Transfer rate (Kbytes/see)

= Bad Rate

8192

CENTRONICS Parallel~ansfer Rate

Note: The matium length of cable for Centronics nardel is 3 meters ( lM).

IIF IIP+

IDD

~(16Mz)

AppleTalk

11 26 24

20-30

10 72

14 16 57

1-16

Novell Networks -23 I/O Not Readv

Coniiguratin TroubLeshootin~Pi’ocedure

of tie most common problems the CE will encounter when ~ LaserJets are

One

mnnected to Novell n-orks is” 23 1/0 NOTREADY”. On

NOT A H~WARE FAULT andthe NetworkA~ator shotidbe able to correct.

Notiythisisa co-ationprobl~ thatistheJe~ect card(Installedrn Optional I/O slot) is not reco~ed by the network. Note it is tie responsii~ of the N*ork Administrator to configure JetDirect boards into network. The foJlowing steps should be adopted to check ifthe Novell n~ork reco@es the JetDirect card

Note: Then~orkA_ator nmst have overall responsibii

and must be present dtig this procedure.

most occasions tiproblem~

COPY Of

Obtain

Status Page

Jet13ir-Hard-

ware address

B~g up Note With NetworkAdministrator bring up HP Untility JetAdmir

JetAdmin

utility

No@ Press button on JetDirect car~ this is located on this

cards face-plate. See Status page on oposite page.

Note Look for I/O NOT READY(xx) on Status page. Sub error

(x) shotidbe crosreferenced. ThiswillgivereasonforUO Not Ready (i.e. 16= Not Configured).Tkis information canbe found m tke HP JetJ)irect Network ~ con.figuration guide. See Statuspage opposite.

Note Off Status page take a note oftke Mode Address (Hard-

ware address)wkich is sirnilarto this 080009171812.

~is Mode Address is unique to emh JetDirmt. See Statuspage opposite.

Go into “con6guration “menu. Bring up screen which shov alIJetDirect cards connected en the network.

Note: JfHardware address does appear get Network a~atol

to contignre on to network using JetAdmin. If not:

1.Try LaserJet on another part ofnetwork.

2. Checknetwork cabling.

3. Lastly replace JetDirect board.

\ /

1-17

1-18

XIO Status Pape

JetTest

The LaserJet Confidence Test Tool

WhatisJetTest

JetTest is a confidence test tool tie CE can use to quickly detetie communications

betweenthe PC andtheLaserJet. It alsoteststhe fimctionalityofthethe LaserJet. ~stest comes

on a bootable floppy disk and is very easy to use.

WhvUseJetTest

negates the customers application/sof~are asit isabootable disk.

*It

*It checks communications between PC andthe LaserJet or L2000. [1]

checks tie functionality of the LaserJet (i.e. Duplex, I/P source selection, etc)

*It

*It quickly helps CE determine if fault reported is a LaserJetproblem. *It reduces” Over-Delivery” of HP support services. *It will help to reduce the NFT rate of Formatter PCA’S. *JetTestwill not run if disk is NOT Write Protected.

Has CRC checking when disk is booting. (Virusprotection)

It is very easy to use.

Itis ve.y important to ensure a high qualiy I/F cable are used and thq are

Note

[1]

correctly wired Use HP cable lfpossible.

Matarethe Standard Tests

RippleTest (Portrait& Landscape)

* GraphicsTest * Dotioads a Soft-Font * DuplexTesting *1/ P Bin Source Selection * PCL/PostScript Switching *PostScript Graphics t=t * Serial/ Parallel protocols (use high

quality HP I/F cables impossible)

(Virusprotection)

Please note fiturevertions ofJetZ’estwill contain manymore tests, but tie aboveti alwaysbe tie “corestandard” testa.

Which Printers can this Version ofJetTest to run on?

LJI / ID (Note only ripple test has be tested)

* LJII / IID / III / IIID * LJIIP / 111P * LJ4

L IIISi / 4Si

* LJ4L

*LJ2000

1-19

How to RUNJtiTest

1.Install the Bootable disk inA: Drive of PCA

2. Power off fie PC, then on again or CTrl, Shift &DEL Keys together 3 .Takeapprox 1 minute to BOOT-up.

4.The J~EST screen will appear,then simpIy follow to menu driven screens and choose test you wish to run, number of copies, etc.

Note: The mouse will ody work ifthe PC has serial mouse, ifnot use TAB and/or arrow keys.

How to Obtaina Covv ofJetTmt

JetTestwasproduced by Steve Oakes(UJSMauchester) and Bob Edwards (UKRC) and

has been widely diatriiuted tioughout the UK and also to mmry countries worldwide. Ifyou

need a copy please send a 3 1/2 inch HD floppy disk to Bob Edwards in the UK Birmingham

office (ext 59369) with return address and I wilIbe ~d to -d you a copy.

mat oftheFuture ofJ&Test

At this time (March 95)we arerntheprocess ofupdatingJetTestto includenewLaserJet

products. We alsorntendtorevampJetTestto allowittobe ea~updatedandto rncludeatider

choice of tests. This will probably be available by the Autumn (Fall) of this year. We will of

course update the field of prowess m this area.

1-20

Classic Printers

LaserJetI / LaserJetID

2686A /2686D

BooMet Or~anisation - Please Read

This 2686fl section has been divided into 4 parts, which areas follows:

1) Faults with Error Numbers

2) Miscellaneous Problems

3) Print Quality Problems

4) Paper Path Problems

Service Notes UD to SCDt 86

2686A-I 2686A-2 2686A-3 2686A-4 2686A-5 2686A-6 2686A-7A

2686A-8 2686A-9 2686A-10

2686ABIAU-1 2686BIAU-2 2686ABIAU-3 2686ABIAU-4 2686ABIAU-5

Print Skew. Replacement of Lasers (DC Controller Compatibility) Di;fictity Clearing Error 50. Service Mannal changes since publication. Change to Level 840606 Firmware. LaserJet Plus (Options 200 & 220) Vertical Smear. LaserJet I/F PCA Failures. Correcting Errors 20,21, 22& 40. Correct Value for R117 on Connector J107

Voltage Configuration (220/240v, 50Hz). Print Skew.

Replacement of Lasers (DC Controller Compatibility) Difficulty Clearing Error 50. Service Manual changes since publication.

2686ABIAU-6 2686~lAU-7

LaserJet Plus (Options 200 & 220)

2686AB/AU-8A V@ical Smear. 2686AJ3/AU-9 LaserJetW PCA Failures. 2686AB/AU-10 Correcting Errors20, 21,22& 40. 2686AB/AU-l 1 CorrectValue for RI17 on ConnectorJI07.

2-2

~q86wD -FAULTS*H.EtiOfiWMBERS,

Please note that all Paper Jams or Error 13 problems, refer to the Paper Path part

of this section of this manual.

1. Check Laser Power level (45mw).

PERMANENT “02”

(Long waiting) 3. Faulty Scanner unti

2. Faulty Solid State Laser.

4. Check fuses on DC PS~ain Motor PCA.

5. Replace DC PS/Main Motor PCA.

6. Replace W PCA.

PERMANENT “05”

(Self-Test)

ERROR 11

ERROR 11, When Manual In this case the 2686A Plus was mistaken for a 2686A

Mode is Selected. Std, atsome time in the past the W had replacedfor (

“LC 11” Lower cassette Faulty Lower Paper Stie Switch. Replace this assy. Permanently “OUT OF PAPER” (2686D)

PERMANENT

“ERROR 12”

2686D ERROR 12

Intermittently

(Updated)

(Andy Cassels - Aberdeen)

1. Faulty ~ PCA.

1. Caused by bad Paper cusette micro-switch

(item 36, Fig-8-17).

69004 instead of a 69005. At some time later the customer began to use Manual Mode md this fault appeared.

I. Faul~ DC Controller.

2. When lid closes not ati”vating switch in ~ Power

Interlock assy.

3. Print engine transformer.

4. Misskrg DC Voltage, replace DC Power Supply~otor Driver PCA.

The latch (FA2-5678-OOOCN)which holds down the uppermain body on the LHS had a small crackin it.

It was difficult to see the crackand printer appearsto

function correctly. On applying power it would intermittently give E~OR 12 or the printer would

not power up at all. This was caused by the motor

starting up and causing upper chassis to flex. Due to this movement (1 to 2mm), this was enough to trigger the interlock. When the interlock had operated, power is cut, motors stpped, frame returns to its correct posi tion, then power is reapplied. This scenario can thus repeat. Replace latck FA2-5678-OOOCN.

2-3

2686A/D - FAULTS WITH ERROR NUMBERS (Con’t)

2686D ERROR 12, paper not feeding correctlyfrom both I/P trays, it “Judders”, then Error12 occurs. Also

a BLANK page is emitted

from the printer.

ERROR’s 20,21, 22& 40

ERROR 50 Hard Fault

(S= note on below)

Traced to bad “Lid Switch” ie “DOOR OPEN”.

(Loss of +24v).

Error 20 (memory overflow) and Error 21 (print

ovemm) Usually caused by software due to the

following

CPU~ost sent to much Data to 2686. To clear press

continue.

Error 21...The formatter cannot catch-up with print the print engine.

Error 22 (Buffer Overflow) and Error 40 (line error).,

Usually caused by system configuration problems i.e.

Baud rate, parity, 7[8 bits, Xofioff/DTR, Normal settings: Baud rate -9600

Parity - None Bits

-8 bits

H’stie - XotiXoff

IN GENERAL, REPLACING IIF WILL NOT

CORJU?CTERROR

‘S 20.21, 22& 40.

See Servke Note 2686A-9

Normally caused by the following in order of preference:

L The 470hm resistor on Fuser Safe@ PCA blown.

(obtain 1/4 watt local~) or HP PIN is FF1-3872-OOOCN.(See Sfl 2686A-10).

2. Fuser Saf@ PCA.

3. AC Controller PCA.(new @pe has -040CN suffm).

4. Vibration in @anspo&g the 2686 causes Fuser

Bulb to rotate glass protrusion on fuser bulb to

point towards thermistor.

5. Fuser Bulb, should read 9/10 ohms. (known to

blow at 11 ohms).

6. Faulty or Dirty Thermistor.

Z Bad connections on the Fuser Saf@ or AC

Controller PCA ‘s.

8. Repbce The in Power Module assy.

9. Faul@ DC Power SuppfyMain Motor PCA.

10. Iffaultpersists replace Fuser Safety, AC

ControUer and Trtic together.

11. Check z~2686 is conjiguredfor 240volts?

N’otc Due to error messages being retained in memory for some time afte

power down it can fool the Service CE into believing the assy just replaced did not resolve the problem. Either do one of two things:

(Continued nextpage)

2-4

26~6AM - FAIJ1 ,TS WITH F.RROR NITMRW,RS (Pnn$tl

-. --.-— ------- .----- -. =.- -.. .w...__=.- ,_w-.

1) Leave 2686 powered down for at least 10 minutes.

2) Alternatively, gain access to the DC Controller PCA whilst powered down and put a short across R250, near C235.

Also see Service Note~

2686N/AU-4 or 2686A-3 and 2686~/AU-11 or 2686A-10

INTERMITTENT ERROR 50

ERROR 52?

ERROR 53?

E~OR 60 & 61.

ERRORS 63, 65& 67

Possible causes-

1. Nohey AC Mains Power Supply. The 2686A’s are

more susceptabfe to AC mains disturbances than

perhaps other equipment ConnectAC Mains

Monitor. Check quality of mains supply.

2. InstallAC Controller who’s Pm ends in -040CN Suffa

3. Replace QI Triac.

4. Checkfor AC Voltages asper below:

PS/W Motor PCA @om Transformer.

These are:- 33, 12, 21volts on J501 connetir.

5, Check z~2686 is conjiguredfor 240v.

6. Noisv AC mains, instaU mains monitor.

Z See 2686A-10 Service Note.

8. Replace DC PS~ain Motir PCA.

9. Replace DC Controller PCA.

Replace ~ PCA

Replace Laser unit

Both these errors can be wused byfaulty W PCA ‘s.

Normally caused by LT PCA.

ERROR 67

ERROR 60, 65& 67

MISCELLANEOUS

ERROR’s 6X.

Cm be caused by very cold environmentsi.e

temperatures in office maybe falling very low over night. May give this problem only first thing in the morning, there on after will be OK all day.

Can be caused by atteinptkag to put to many fonts on one page

Especially Error’s 60,63 and 67 may be caused by

loose ubfing. If the cable are not securely fixed down the printer may exhibit these problems.

2-5

2686A/D-,MISCELL~EOtiS’PROBLEMS ~~

ARC~G? Check all earthing assoicated with Transfer Corona,

ensure all earth connection and all wires associated with Varistor PCA have good continuity, check 16Mej ohm(R9) by Transfer Corona is OK.

No FRONT PANEL 1. Probably the I/F power supply that lies at the botton

DISPLAY?

of the 2686A. Check the 5 volts coming from this PCA.

2. Faulty W PCA.

3. Check wires under VF Power Supply have not been

punctured, especially after reassembly. If are has

not been taken to route lower cables carefuUy, this cause unit to Smoke and hmage L!FPCA.

VERY LONG “WAITING FOR DATA” 02 on Display FrontPanel.

Will not recognise NEW CHARACTER FONTS 92286J, 92286G & 92286H.

Laserjet 2686 plus outputs at 50% of expected rate with some applications when using Note Throughput OK when using internal default font.

operational fast font cartridge.

TONER CARTRIDGE 1. Customer not shaking ca~”dge.

problem’s

Customer changes horn the

2686A to 2686D LJ. When unit, be aware you may increase the amount print using PREP~ED paper that was previously used on the difference between the first printed line on 2686A 2686A it was found the text hat’

displaced by approximately

1.58mm in relationship to the therefore a resolution may NOT be available The

preprinted lines or boxes. customer may need to compensate by either changing

See “PERMANENT 02” in 2686WD “Fatits with ErrorNumbers”at the beginning on this section of manual.

Reference Servtie Note 2686A-5.

Reference Service Note 2686A-6.

2. End stopsfallen out (see Video). Problem only sea in the early introduction phase of this pm”nter.

3. Drum Shutter damage (L @ Rfade).

4. TONER Cartridge in red zone

5. DFS Cartridge

6. See “LASER PRINTER PRINT QUALITT” book (UK only)

Try adjusting thephysicalpositin of the scanning

skews on page (See S/N 2686A-1). Note there is a

when compared to a 2686D. The aetualphysicalpape,

path length between the printers is slightly dz~eren~

the position of the preprinted images of repositioning laser printer images.

2-7

““”.. = -

. . -------- . . --- .,- . ----------

MULTDLE ~ PCA’S were

being replaced ?

MULTIPLE POWER SUPPLIES REPLACED?

After lower section of printer was disassembled.

AC Controller PCA are

failing?

Print “CRACKING” when paper is folded. White lines may be seen rnnning tbrougb

ch-cters where page has been folded.

1. ENSU~ the customer AL WAYS switches ON LJ lmt and switches OFFfirst

2. If several hosts share LJ via a data switch turn off aZZpowerto LJ before switching data switch. See S/N 2686A-8

3. Has the lower section of theprinter been removed

from the base seti”on recent~? ~so check that tie

two brown & blue ~ 5V supply m“reshave not been

punctured, these lie in tie base seti”on.

ENSURE all wires are returned to their correct

position at reassemb~.

See input above (Mutiple W’s being replaced) item number 3.

Replace PT1 AC Mains transformer.

Toner comprises of pigmented plastic material and iron oxide. WIIcn subjected to high temperatures these individual plastic particles become part of a larger plastic image on the page. When the page is folded the plastic must give in some way. If the printed image is well fused into the paper , the resulting break in the plastic will NOT be very apparent. However,

if the toner has NOT been able to penetrate the paperfibres, the “Crack” in the plastic image will be amp~led. A white line will be seen through image. To Minimise:

1. Ensure paper meets ALL Paper Specs, see guide 5002-180L In patiularpay attention to the smoothness (100-250 Sheffield) andor “W&

Pick” ~11 Dennison)

2. A lighter Density seti”ng WD

ensure lesstiner is

used, thus minbnisingproblem.

3. A lighter character stroke may ako he~

Pm S~W~G & Paper R@wence Service Note 2686AB/A U-2. AcceDtab~e

REGISTRATIONprobiems.

Skew is 1.58mm over 260mm feedfiom Cassette tray

L Replace Registration assy, check that white nylon

rollers turn freely.

2. Is media within spec’sfor this printer?

3. RepCacePaper cassette tray

4. Laser/scanner Unit misaligned? See Service Note

2686AB1AU-2.

2-8

-“””mu - ,T.l”uuuum, ,Uu ““ . ..WJDMML.1” ,G”M .L

~~G EDGES OF ENVELOPES “Wrinkled”

Adjust springtension on FuserPressurerollers, Mis

may help. Note, envelopes areproblematr”c due to as it passes throughfuser tha-r construction. Contact RCE for further informs assy. tion

Customer printing BOTH Thismodel of bserJet is a SIMPLEXprinterandis

SIDES of tke Page or DUPLEX printing?

~S can print on both sides, thisprti”ce is not supported

WY cause paper jams, paper

not designedfor Duplex printing.Although this printer

byHP. For the generalHP statementon “Duplex

feeding or print quality printing v Simplex” please referenceHP Reference problems. Guide (Green Book) section 3.

Customer RE~ED~G paper, As above ref= to HP general statement on “Duplex not two sided printing? printing v Simplex” in HP Reference Guide (Green

Book) seetion 3.

PAPER JAMS/MISFEEDS/ Interleaving, where a variety ofpaper is placed in the SKEWING caused by

paper tray, is not recommended by HP. ~ practice k

customers practice of likely to lead to Paper jams& Misfeeds. For the general ~ERLEAVING ~ermt HP statement on ‘interleaving Paper” please reference types ofpaper m paper trays? HP Reference Guide (Green Book) section 3.

2-9

2686A/D-PR~

T QUfiITY PROBLEMS

MARKS

REGULAR INTERVALS

Prints in only a sma~ portion of the page with “Print Test”

and only a small portion of “Self Test”. See below:

ELONGATION OF PRINT 1. Replace DC PS,ain Motor Pa in the direction of paper

movement.

BACKGROUND

ON PAPER AT

If marks repeat at re~ar intervals, measure distance between marks to determine where tie problem lies:-

Marks %375” apart - Drum Related

8.0” apart - Drum gear Related

2.5”

apart - Fusm Roller Related

Paper tray size microswitck problem. Check

operation of these switches, alternatively paper size

switch cables may be defective. There are 3 micro-

switches to the left of the paper tray, which sense type

of paper tray (A4, 1lx 8.5, etc) installed.

2. Check drive mechanism, gear train& motor

3. Replace main motir

4. Is the use of Non-HP Toner Cart’s causing this

pbm?

] 1. AdjustPriittDensi@ dial

2. Ground Spring in centre of drum dn”vegear, is it damaged or missing?

3. Check Laser Power adjustment

4. Replace HVPS.

5. Replace DC Controller PCA

6. Replace DC Power Supp& ~ain Motor Dvr PCA.

VERTICAL SMEAR problem. Thin grey band in approx

middle of paper. Band in the direction of paper movement. This band is Approx 6 to 12m wide. This problem is also

known as “VERTICAL FOGGED STRIPES”.

WAW PRINT

Reference Service Note 2686A-7. L Pay special attention to the quality of media used

2. Supply customer with 2686A Paper Spec’s Guidfi

3. Replace Feed Guide Assy (RGI-1039-OOOCN)

4. Dirty Primary Corona.

5. Tiy replacing Toner Cartridge.

6. Clean interior ofprinter.

1. Repbce Scanner unit

2. Rplace DC Controller PCA.

2-11

2686A/D - PRINT OUALITY PRO.BLEMS (Con’t)

MARK ON PAPER in line 1. Separation belt installed upside down.

with SEPWTION BELT. 2. Dirty Separation Belt

3. Dirty Separatin RoUer.

4. Replace Toner Cartridge.

GHOST CHARACTER on the

Ov@lling t?tepaper tray can thepick-up rollers to

43rd line? drag on the paper, causing motor to slow down,

causing EP Cartridge to stall slightly. Causing inprope transfer of printed data born drum to paper.

LIGHT WGES?

1. Adust Print Densiq Dial

2. Try Laser QuaZi@Paper.

3. Replace Transfm Corona.

4. Check Laser Power. (Laser Checker Too~

5. Replace HWS.

6. Replace DC Controller PCA. Z Check Drum Sensitivity switches.

RANDOM LIGHT

Clean centre of large brass drum drive gear.

PATCHES over the page BEWARE, do not darnageorlose spring in the orGRADIENT from left to

centreof this brassgear.

right?

LIGHT PRINT ON RHS

side of paperin the diection of

paper movement.

1. Due to a missing or loose earth conneti”on on

2686A situated nmr the RHS hinge as viewed

@om the front of theprinter.

2. Missing Doctor bladepin in EP Ca~”dge, replace

EP tirtridge. Have not seen this problem for a ion,

time

3. Replace Varistor PCA, there maybe dz~ferences of outpub ie narrow bands of darkprint at the far

RHS, whereas a missing doctor blade pin wdl not

LIGHT AREA bottom RHS

Replace Feeder Guide Assy andpossibly the

md irre@ar. Transfer Corona.

LIGHT PRINT in same

position down page? Always

in dirmtion of paper movement. Image very light in in this area.

BLANK PAGES?

BLACK PAGES?

Clean Optics Exit mirror to Drum.

L Empty toner cartridge?

2. Has seal been removed in toner ca~”dge?

3. Replace Trmsfer corona, wire broken?

4. Replace HWS.

5. Replace DC Controller.PCA.

1. Replace EP Toner cartn”dge

2. Replace HVPS.

2-12

2686A/D - PRINT C)UALITY PROBLEMS_(_Conlt) Sharp THIN LINES

Horizontal Lines across

Page

1. Replace Scanning Assy

2. Replace Laser Unit, check laser power.

3. Replace DC POwer Supply~ain Motor Dvr PCA.

RANDOM GAPS between

connective lines across page?

THIN VERTICAL “BLACK”

LINES/STWES down page?

THIN VERTICAL “~ITE” L~S/STRIPES down page?

BANDS Down page ? Fuser

Rollers scored. on thefuser separation pawls (page 8-58

PRINT SKEWING & Paper

REGIST~TIONproblems.

Faulty brass dram drive gear, the centre collar was

protruding wtich prevented the silver pin locking in th end of the EP cartridge.~is resulted in the b stopping intermittently.

1. Is Fuser Cleaning Pad dirty? Replace if necessary..

2. Scotig onfuser roller? replace z~necessary.

3. Scoring on EP Ca~”dge, try another cartridge

1. Replace Totier Cartn”dg&

2. Dirty Fuser Cleaning Pao!

3. Dirty Transfer Corona wire.

4. Ckeckfor obstacles or OP mirror contamination in laser beam path. Laser Shutter?

5. Reptice stunning assy.

Scoring is normally caused by a build up of dust, etc

This problem is accentuated by the use of non-sup

ported media i.e paper with a high cotton content or with talc/clay content. See 2686 Paper Spec Guides. The use teflon coated darnage resistant fuser rollers have been found to be more reliable. Use Higk Quali@

Laser medti asperpaper spec’s.

Reference Service Note 2686AB/A U-2. Acceptable

Skew is 1.58mm over 260mm feedfrom Cassette tray

1. Replace Registration assy, check that white nylon

rollers turn freely.

2. 1smedia witkin spec’sfor this printer?

3. Replace Paper cassette tray.

4. Laser/scanner Unit misaligned? See Service Note

2686AB/A U -2.

item34).

STAINS on REAR of PAPER

EP Cartridges DEGRADING

extremely quickly of found to

be D.F.S on arrival.

I. Clean interinr ofprinter.

2. Dirty Fuser Cleaning Pad.

3. Replace Fusing assy.

Check the EP Cartridges are HP and are not refilled

EP Cartridges. BEWARE, although the cartridges

may be in a HP or look alike boxes, it still could be of

the refilled variety.

2-13

2686ti26i6D-P~ER:PATH PROBLEMS

ERROR 13’s Paper Jams

(Summary)

FJRST PRJNTED PAGE

JAM’s, but operates OK thereon

afterwardsuntil the printerhas

been turnedoff orunused for

some time. @RROR 13)

1. Using ~SUPPORTED PAPER, 79 grrns max,

use high quality laser bond paper to test.

2. Paper Jams/Smears - caused by broken or

missing separadon belt or incorrectly instalIed

3. Paper Jams caused by EP Toner Cartridge shutter not opening. The plastic strut in the base(~S)

base (US) whti opens this shutter was broken.

4. Paper Jam caused by Paper Cassette clutch collet

(item-4,Fig 8-IV hose. This also applies to

2686D’s.

5. Paper jams at rear access door - due to a resti”ctin

in the guidefiom the rear aaess up to the registration assy. Use slightly stiff cardstock md

push up from the rearaccess doorareainto this guide to clearobstruction.

6. PaperJamat Regishation area- Registration

solenoid binding or shutter not moving correctly.

Replaced regis~tion assy.

7. Paper Jam at Registration Assy - due to cover hinges

incorrectly set causing a lack offriction between the registration rollers.

8. Paper Jam at Fuser Assy - caused byfuser exit sensor.

See page 8-49 in Service Manual, item 9 Registration Shutterassy. On this assy thereis arubbergrommet

which when the printeris unused for aperiod of time

sticks, This causes the Registration assy not to operate

correctly, thus Paper Jam3einove this grommet as a

temporary measure, replace registration assy at a later time z~not immediately available.

FAJSE PAPER JAMS, no paperfed at all.

(ERROR 13)

FALSE PAPER JAMS, i.e paperfeeds thru OK, but with

no printing, then a false paper

jam occurs. (ERROR 13)

Onpower up, beforepower up initialisation has completed, main motor energises ERROR 13 occurs.

Springs on Registration Shutter assy not positioned

correctly,fooling the LJinto belieting paper has

stuck in this assy. i.e. sensor activated at all times.

Reposition these springs into its correct location or

replace registration assy.

Ref page 8-37 item 4/25, the allen screw may come loose or it may slip on its shaft. This results in the “D

cassette pick roller incorrectly positioned.

1. F&t edge of ‘D’ rolJer should face paper tray, or

2. Too much paper in paper tray may cause the same problem.

Registration Sensor arm binding. A misalignment of the Registration Shutter Spring (page 8-49, item 15)

Realign to wrrectproblem.

2-15

A“””-. ””” U - .-. U.. .-. .1 . I.VHUU,..” ,G”I. *Z

PAPER JAMM3NG at rear

of printer,in areabetween

Fromrear of 2686A, ptil back Lower Castie guide (page 8-3’7,item 7), push somefair~ rigidpaper

rear access door and Reg Assy. up awards registration area @ clear any blockage.

Alternatively the guide plates in this area are too C1OS,

and W-llhave to be stripped down to correct this

problem.

ERROR 13- 1st page leaves Replace Exit fuser Sensor.

1“protruding fiorn fuser assy.

ERROR 13-

OCCurS when

leading edge of paper is about

Replace EP Catige, either shutter not opening or it is restricting paper movement.

to enter separation belt roller.

ERROR 13- Occurs after Repkace back door springs (RS1-2011-OOOCN). paper is picked up, dl movement stops then jam message.

ERROR 13 when warming up.

1.Registration pbte bent or misaligned, also cheek

Does not get to “00 READY “ springs on this assy. condition before paper jam 2. Replace Registradon assy.

occurs.

PERMANENT ERROR 13 The 24v was being pulled down by faulty AC Cent on switching-on.

PCA. Replaee AC Controller PCA.

ERROR 13, 6mm of Paper Replace Fuser Exit Sensor.

protruding out of the Fuser

Rollers.

2686A Paper Jams when user Paper Feed clutch found to be heavily congeled in begins operating printer for

firsttime in the morning. resolvedprobkm.

the

grease/paper dust. ~roughly cleaning clutd

No problems after first initial

nasage.

LOSING TOF when using 1. Check quali~ of Labels.(Use Ave~) label paper horn the manual 2. Repkrm Manual Feed Assy(FG1-2354-OOOC~. feed I/P tray. 3. Check alignment of manual idler poller on Reg

assy in relationship to rotir on the manual feed assy.

2686D -in FACE-DOWN

MODE RH edge of paper

rollers sl@ping on paperpick-up shafi (item I.

Nylon Fig 8-21).

BENT over.

2-16

2686A/2686D - PAPER PATHPROBLEMS (Con’t)

PRINT SKEW~G & Paper Reference Service Note 2686AB/A U-2. Accqtable

REGISTUTIONproblems. Skew is 1.58inm over 260mm feedfiom Cassette tray

1. Replace Registiatio@ assy, check that white nylon

rollers turn freely.

2. Is media withti spec’sfor this printer?

3. Replace Paper cassette tray.

4. Laser/scanner Unit misaligned? See Service Note

2686AB/A U -2.

First page OK, second sheet, text has SHETED DOWN

Sticky registration shutierisolenoid.

Replace Registration as~.

page.

Faulty REGISTRATION i.e. Print shifted down page by approximately 2 inches.

LINE SPACING between The LJII has a different paper handling path when 2686 & 33440A NOT THE when compared to the 2686A, HP specifi that Iine

Registration assyjammed replace thispati

SAME? d~foence uir vary by +/- 2.5mm perpage.

T~G EDGES OF ENVELOPES “Wrinkled” may help. Note, envelopes areprob&matti due to

as it passes through fuser their instruction.

@stomer printig BOTH

SIDES of the Page or DUPLEX printing? Tbia may cause paper jams, paper feeding orprint quality

problems. Guide (Green Book) section 3.

Customer REFEEDING paper, not two aidedprinting?

Adjust spring tension on FuserPressurerollers, this

This model of LaserJetis a SIMPLEX printerand is

not designed forDuplex printing.Although this printer

canprint on botb tide$ thisprad”ce is not suppotied

byHP. Forthe generalHP statementon “Duplex

printing v Simplex” please reference HP Rderence

Aa above refer to HP general statement on “~plex

printing v Simplex” in HP Refmence Guide (Green

Book) section 3.

PAPER JAMS/M~FEEDS/

SKEWfNG caused by

customers practice of

INTERLEAVING Merent

~es of paperin paper tiys? HP Reference Guide (Green Book) section 3.

Interleaving, where a variety ofpaper isplaced in the

paper tray, is not recommended by HP. Tbia practice i

likely to lead to Paper jams& Mifeeds. For the general

HP statement on ‘!IrUerlem”ngPaper” please refwence

2-17

2686D - PAPER PATH PROBLEMS

2686D - ERROR 13, feeds OK Replace registration asv and CHECK quality of the

from upper tray, jams from lower tray. ALWAYS prints Ist page, 2nd page is just leaving the fuser assy, 3rd page is half

way up the rear acc=s door,

paper jam occurs

2686D - When paper is fed from UPPER TRAY, one sheet is fed incorrectly from the LOWER TRAY?

2686D, When labels are fed mannaJly, the image loses TOF and also manual I/p seems to snatch at label when feeding . 000CW to wrreti

ERROR 13- 2686D after pape r Delivery sensor PS6 faul~, though it seemed OK

exits delivery exit area in face

in face up mode orin face down mode. This erroroccurs when paperis aboutto enterthe holding trayarea.

ERROR 13- 2686D, PAPER

JAMS IN HOLDING TRAY AREA. Paper entering holding Tray from fuser assy collides

with paper about to exit the the holding tray.

media being used If paper is NOT checked the problem will most likely recur again.

NOTE: Media is known to cause this problem, use paper that meets 2686A/D Paper Spec’s guide.

Stic@ lower cJutch,possibly caused by using incorrect lubrkant. Dismantle clutch, clean and use light oil to lubricate. (3-in-One)

Replace clutch spring and other parts if necessary. DO NOT use grease.

Ensure Idler roller on the Manual feed assy are aligned with the lower Manual feed roller. Bend

metalwork on idler as~ (Page 8-48 Pm FGl-2354-

when measured with a DVM.

1. Adjust pot on Paper Control PCA, this controls ti{ speed ofpaper exiting the holding tray.

NOTE:- these pots are initiaJly factory set

2. Replm% Paper Control PCA.

2686D ERROR 12

Intermittently

(Up&te@

(Andy Cassels - Aberdeen)

The latch (FA2-5678-OOOCN)which holds down the upper main body on the LHS had a small crack in it.

It was difficnJt to see the crack and printer appears to function correctly. On applying power it wodd intermittently give ERROR 12 or the printer would

not power up at dl. This was caused by the motor

starting up and causing upper chassis to flex. Due to this movement (1 to 2mm), this was enough to trigger the interlock. When the interlock had operated, power is cut, motors stpped, frame returns to its correet posi tion, then power is reapplied. This smario crarthus repeat. Replace latch FA2-5678-OOOCN.

2-18

. . ..-

. ... . .. . . . . .. .

~ FACEDOWN mode right

1.----.,. ” ,-” - .2

Nylon roller slipping onpaper-up sha@ (item 15,

hand edge of paper has bent Fig 8-21). over.

~stomer changed from 2686A TW adjusting position of scanning assyj be aware the

the 2686D. When using paper amount of print skew on printed page may increase preprinted paper on the 2686D (see S/N 2686A-1). Note there is a difference between which was used successfullyon the 2686A, the

text has moved the 2686D. In this case, a problem resolution may not

the 1st printed line on the 2686A, when compared to

by approximately 1.58mm. possible which wuld be offered to the customer.

There are differences between the physical paper paths

The printer has TWO PAGES The paper tray clutches are NOT stopping after one coming out of the fuser assy. revolution. Try: The 1st page is 25 to 1. Check if tension provided by the solenoid armature 5Gmrnin front of the 2nd page. spring is sufficient.

2. Replace clutch spring and lubricate with light oil. (e.g. 3-in-One Oil).

Customer printing BOTH This model of LaserJet is a SfMPLEX printer and is SIDES of the Page or not designed for Duplex pfiting. Athougb this ptiter

DUPLEX printing? This can priot on both sides, this practice is not suppotied

WY cause paper jams, paper

byHP. Forthe generalHP statementon “@lex feeding or print quality printing v Simplex” please referenceHP Reference problems. Guide (GreenBook) section 3.

CustomerHEFEEDING paper, As above refer to HP general statement on “DrAplex

not two sidedpriutiug? printing v Simplex” in HP ReferenceGuide (Green

Book) section 3.

PAPER JAMS/MISFEEDS/ Interleaving, where a vm”ety ofpaper is placed in the

SKF~G caused by

paper tray, is not recommended by HP. This practicei

customerspractice of likely to leadto Paperjams& Weeds. Forthe gened

INTERLM~G ~erent HP atatemimton ‘Interleaving Paperf’ please refaence types of paperin papertrays? ~ Refmence Guide (Green Book) section 3,

2-19

2686A/D - MANUAL FEED PROBLEMS

2686D, When labels are fed

manually, the image loses TOF and also manual I/P seems mtilwork on idler assy (Page 8-48 Pm FGZ-2354- to snatch at label when feeding.

LOSING TOF when using 1. Ckeck quali~ of Labels. (Use Avery) label paper fed from manual 2. Replace Manual Feed Assy(FG1-2354-OOOCN).

feed input tray. 3. Ckeck alignment of manual idfer roller on.

NO MANUAL FEED, Ensure correct intirfacepca is instaffed, shotid be

ERROR 11 OCCURS when 69005 not 69004. MANUAL FEED is 02686-69005 for 2686A+ & 2686D(senal & Parallel) SELECTED. 02686-69004 for Std 2686A (serial I/F only)

MANUAL FEED, Two pages Customer notpressing FOWEED a@ermanually

of data printed on same

page.

Feeds one sheet via manual Replace Inte~ace PCA! IR, gives permanent status

ERROR 11 (paperout) cleared temponaly by powering down printer.

Ensure Idler roller on the Manual feed assy are aligned with the lower Manual feed roller. Bend

OOOC~ to correti

feedingpaper, resultsin 2 pages of data on one page.

2-20

Classic Printers

LaserJet II (33440)

LaserJet III (33449)

LaserJet IID (33447)

LaserJet IIID (33459)

,., ,,,

33440#33447&33449M33459A,LaserJet Printers:

,,, .

Booklet Organisation -

This

section has been divided into 4 part% which are as follows

1) Faults with Error Numbers [Error 13b@aperJams) in Paper Path section] Miscellaneous Problems

Print Quality Problems

Paper Path Problems [All Error 13k {Paperjam] in this section]

PostScript Problems

- / ~ Only Faults

Appendiz

Service

33440A- 1 33440A-2 33440A-3 33440A-4 33440A-5 33440A-6 33440A-7 33440A-8

33440A-9

33440AB/AU-9

3344OA-10 33440A-1 1

33440A-12

Notes UD to Feb 95

Parallel UO Incompatib@ Shim Under Laser / Scanner Unit Rubber Foot RS-422 Operation Laser Power White Pages Replaceable Ozone Filter & Housing NTF Rate of the L3 Interface PCA Error 41, 50, 51 or 52 Error’s and cable PiN’s Error 12& 55 connectd to Vectrs ES, CS, ES/12 or QS using 220/240v Lubrication of Fuser Assy Oround Contact. Upper Cooling Fan Fuser ~ - Potentional Safety Concern

Please Read

33440A-T-1

33447ABIAU-I 33447ABIAU-2 33447ABIAU-3 33447AB/AU-4 33447ABIAU-5 33447ABIAU-6 33447AB/AU-7 33447AB/AU-8

33447AB/AU-9 33447AB/AU- 10 Light Brown “Oil-Like” Stain on the Front Side of a Duplexed Page.

33449A-O 1A 33449A-02 33449A-03 Opening the Top cover when the Release Button is Inoperative. 33449A-04 DC Contro~er PC~ Interchangeability Notice.

Internal Cable replscemmt

AC Power Modtie (Incorrect P/N) Lubrication of Fuser Assy Oround Conta~. Replacement of Duplex Drive Roller Clutch

Packaging the LJD for Shipprng Printrng Labels m Duplex Mode is NOT supported Upper Cooling Fan Duplex Paper Jams HP26013A Status readback I/O Fuser Assy - Potentional Safety Concern

LaserJet Ill Update for HP 33440 PersonneL HP26013AStatns Readback I/O (optional I/O PCA)

3-3

33449A-05

Fuser Assy - Potentional Safety Concern

33459A-OIA 33459A-02 33459A-03 33459A-04

33443A-1 33444A- I

33445A- 1

26013A- 1

88141A-1

33439P-01 33439Q-01

LaserJet IIII) Update for the HP33447A Stice Personnel DC Controller PC~ Interchangeability Notice. Fuser Assy - Potentional Safety Concern

Light Brown “Oil-Like” Stain on the Front Side of a Duplexed Page.

1 Mb Memory Card Accesso~ 2 Mb Memory Card Accessow 3 Mb Memory Card Accessov

HP26013A Status readback I/O

JetScript, Warranty Processing& Quality Trackiug

HP 33439P/Q PostScript Camidges ~ 33439P/Q PostScript Cartridges

LJ2/2D/3/3D SX Entine Refurbishment Kit

Both the 240v & the 115v SX engines now have a Stice Msintenence Kt available. This kit is msde available for long term wear and the priuter still has NO PM Schedtie provision. The Pm for fiese kits are:

This kit includes the fo~owing parts for the LJII and L3LU:

It does not include the Ozone Filter (92295@ which shotid be revlaced at 50K napes. Printers not equipped with replaceable Ozone Housing Shodd be updated by the CE usrng P/N RGI-1753-OOOCN

* 33449-69008 240v kit *33449-69007 I15v kit

- 240v or I15v Rebuilt FuserAsw.

- Paper Pick-up Roller

- Separation Pad

- Transfw Corona ASV

- New ‘Yxiai” exhaustfan.

If the pfiters are LJHD or L~’s the additional parts shotid be ordered

- RG1-2499-OOOCN Upper Feed RollerAs~

- RG1-2500-OOOCN Lower Feed Roller ASW

- RF1-2548-OOOCN Lower Separation Pad

- RGI-1356-OOOCN Duplex Paper Alignment ~ObIique’~ Roller

- RG1-2498-OOOCN tiplex %ide ASW

3-4

Service Test Tool Boards

LaserJet IMII

a vmy useti too~ for the mm LaserJets, which is installed rnto the DC

Thisis

Controller PCA at J210. An access plate can be found and this is located on the RHS of the

printer on the bottom cover pan. Its Part Number k

~ test board allows the CE to check the following visually (LED)

* +5Vdc & -5Vdc Power Supply

* +24A VdcPower Supply *DBAC @resence of the Developer ACBias enable line) *DBDC @resence of the Developer DC Bias enable line) *PRLM@Y @resence of the Primary Corona endle line) * TRANSFER @resence of the Transfm Corona endie line)

33440-67905 Service Test Tool

This tool additionally allows user to print the follotig print samples

It also has a READY INHJBIT switch which allows

* Whife Page This is use~ for detecting ~t leaks, toner spills, defective EP

Drums, primary corona fkilure~ etc

* Veti-cal Lines USM for measming skew, deteeting scanner motor speed

problems (lines will be wavy).

*Horiz Lines Usefol for measuring horizontal skew, detecting paper motion

problems (lines will be wavy).

*Black Pages UseM for detecting white spots, drop outs, drum defects,

transfm system probelms, etc.

* No paper in the paper trays * Non Paper tray * No EP Caxt installed * Beam Deteet igpored * Paper Jams are ignored.

inall a very good diagnostic Tool

LJIIDAJIIID

Part Number 33447-67906

tool does all the above fimction~ but additionally provides visoal indication

This

the following solenoids enabled and Photo-Sensors operating

*SL301 (Upper Paper Feed Clut&)

*SLI (Lower Paper Feed Clutch) *SL302 (Registration Ctit&) *SL 7 (Switchback De@ecto~ *SL5 (Switchback Drive Contro~ *SL6 Switcirbaek Directional

*SL3 (Vert Reg Guide Roller) *SL2 (Duplex Drive Rolle~ *SL4 (Vert Reg Guide Assy)

*PS2 (Lower Motor Clock) *PS4 (Switchback Paper sensor-Paper Jarn *PS5 pert Reg Assy “Home” Posiiion) *PS301 (Upper Tray-Paper Ou+ *PS302 (Upper Tray- manual Feed) *PSI (Lower Tray - Paper Ou# *PS6 (Lower Tray - Manual Feed) *PS3 (Dup Roller Sensor - Jam Dete&”on) *PS331 (Em-tSensor- Jam Detection)

3-5

LJII/111DC Power SUDDIV/ Error 12

Troubleshooting

With Error 12, No Display, Dead & Power Supply problems on the LJII, ~ ~ & ~ printers use the flow diagram below to help isolate the problem Do NOT jump to

cause, use a Iogicd troubleahootig for the more difEdt types of this problem Error 12

means the Top Lid is open or the +24v is missing. Use this process to ascertain why the

+24v is not present.

Error 12 or

no Disphy

Mea~e DC

Voltages

Any tig?

YEs

W PCA (Display *be lost)

Do Missing Vloltages reappear?

Do Missing Voltages reappear?

Disconnect DC Con’t PCA (Grd PIN 7 on

the DC PS/MTR DW Module, this will

Disconnect

DisconnectDC Contt

bring up the DC Voltages)

Do Missing Voltages reappear?

Replace DC PS / Mtr

PCA Loads

Driver Amy

Refer to

Troubleshooting

“Error 12Printer

open

YEs

Replace Formatter

PCA

Replace Fa@

Load

YEs

Replace DC

Controller PCA

3-6

LJImm@mID - FAmTS wI~@ EWOR WMBERS

Please note for all Paper Jams or ERROR 13 problems, refer to Par)erPath part of this section of this manual.

LJIII ~er “Paper Source Error’ Customers who have many LJI1’son local networks

such as “PC LOAD LETTER” & then purchase ~’s notice when one of the users otier users on local network selects au incorrect paper size, all otier users of this cannot use this printer untfl LJIII are unable to print on it until the printer is

message is cleared. This is NOT manually reset. l?zis is NOT truefor the LJII.

aproblem with the LJII.

“PC LOAD A4° , continuous Replace Formatter PCA.

tier power is applied to printer.

(Ger O’Mathony - Dublin)

(New Info) (LJII~

“UC TRAY EMPTY” all the L Replace Paper ControlPCA

LJIID /LJIIID)

tie? (

2. Replaced DC Controller.

3. Replace size sensor PCB (RG9-0605-OOOCN).

“UC LOAD A4° message continuously? Also, if tie have equally occurred on the ~ or L.JIM). “CONT~ buttom was Two blocks on the LHS & the RHS had broken OR

pressed the printed image was This allowed the cassette tray to be rnsetied too far,

smaller than it shotid be? causing rncorrect tray@ info to be smt to the DC

(New Info) (MIID) Controller PCA. These Blocks do NOT show up in

WAITING FOR “02” 1. Disconnect f/F cable, is fauk still apparent. Badly

Forever? wired W cables Isave causedproblems and

“05 SELF TEST” message

appears rntermittentiy either

whilst printer is idle or when the DC Power snpplies voltages to gro~d,

printing?

(LJIID - Feb 95) resolved this problem.

Intermittent ERROR 12

ERROR 12,55, 64& 67 L Replace HVPS.

This problem occurred on the Upper tray, but cotid

Sefice Manual on Page 8-45, item 1. It akows main body assy ordy, not these blocks. These blocks have the following Pm

1. Replace these blocks.

normally shows up on Centronics cabies. Typically

pm 36 is grounded causing the problem,

2. Replace L2?

This problem was caused by the cable running by lower h rubbing and wearin~ then shorting one of

Simp~ insulatig the bared cable and re-routing

I. Replace AC Power assy

(RA1-3917-OOOCN) LHS

(R.A1-3913-OOOCN) RHs

3-7

LJII/HI/IID/IIID - FAULTS WITH ERROR NUMBERS(Con’t\

ERROR 12 or 55’s

ERROR 12, 11OVprinter Usedwith step dow transformer. Printer would power up, as LJZH began to take load a “Clickiug” noise was heard and pxinter exkibite~ Emor 12.

ERROR 12 or no Display

(LJIfl

PERMANENT ERROR

16 “Toner Low”.

1. Check Jumper J209 is wnnected on DC Cent PCA

2. See Service Note 33440AB/A U-09 wken connected to a Vectra.

Customer was using a - variable transformer that obviously codd not supply the current the printer required. Customer to ensure the transformer can

supply the necessary current to the LaserJd

1. Repkce the DC Controller PCA. (See S/N 33440AB/AU-09 if used w“th Vectra)

2. Rephce Formatter PCA.

3. Replace DC Power Supply.

4. Reptice Scanner Motor.

5. AC Power Module.

See Error 12 flow diagram at end of this section

Appendix Al.

L Grey wirefiom ~S sub-block to HVPS was

connected to lowerposition instead of upper

positin.

2. Replace HWS

3. Replace HVPS to DC Con@oUercable @~RGI0906-OOOC~

4. Replace DC Controller PCA.

ERROR 20 Memory Overflow

When continuous SeE-Test ’04’is used on PLC 5 printers ERROR 20 my

OCCUI’.

(LJIII/IIID)

ERROR 41 (Intermittent)

(LJIQ

Downloading too many sofi-fonts/graphti Initiate

a ‘fit Font” and work out how much memoxy this takes mmpared to the memory actmdly available. Referenw ‘~ogr

armning =ts m Tech Ref Man.

Standard User Memory is 395Kb.(LJII)

This is normal for PCL5pvinter, NOT PCL4. Due to

HPGL2 vwor commands used on SeIt-Teat and the additional memory it requires. The number of pages of Self-test which are printed before this error may occur depends on the av~ble RAM. Ifprinter is

powered bwn more RAM maybe available, tierefore

ERROR 20 may take longer to appear. No remedial

actions is required to correct this problem

Z. See Service Note 33440A-09 concerning

Error’s 41,50,51 & 52. Replace Laser/Scauner

cab~ RG1-0908-OOOW

2. Check grounding bushing on LHS of Reg assy.

Especially when replacrng Reg Asay, ensure

this brass buaking is orientated correctly. This(Con~

3-8

LJII/111/IID/IIID - FAUL

;WITH EKKUK NUMBEKS lCon’tl

3. Replace DC Controller PCA. The printer ordy faile

4. Repkce Optics Assy.

—————

brass part helps eliminate static.

intermittently 1st tking in morning on power on.

----- -———-.- ...

ERROR 41 very Intermittent. OK on long continuous print runs, fails on 1or 2 page prints (short print tiles).

(K Batchelor - Hatield)

Very Intermittent ERROR

41. Replaced d normal parts, CE noted that an Error 12 occurred fist, then Error 41.

THIN LINES across page

rntermittently, can be

associated with intermittent Error 41,51 & 52’s

ERROR 50? ~

Intermittent ERROR 50, can

be associated with paper jams.

Codd hear Scanner Motor audiily noisy, replaced

Sunner Motor, ho in this case PCA was i-~laced as well.

Replace DC Power Suppy

Replace RG1-0908-OOOCNLaser/Scanner cable

the DC Controller

.. .. . ..,,

~r~o~ &&&r br SJCtie ~~~~~ capa~o~s on the

Z%tifpliw++t&@@flj.;,j ‘“ : ,:

= C21h;

1. Replace cable J206 DC Cent to J331 on Fuser Exit PCA (Pm RGI-0907-OOOW). See Service

Note 33440A-09 or 33440AU-01

2. Replaced FuserAssy.

3. Reptice DC Controller PCA.

4. Replace AC Power Module

5. Replace RGI-0912-OOOCNAC Power Module Cab

1. Replace RG1-0907-OOOCNFusing Assy cable, the:

areknown to be intermittent.

See Stice Note 33440A-09

2. Replace AC Power Module Cable

RGI-0912-OOOCN.

ERROR 51

(LJw3/2D/3D)

When printing, the FIRST PAGE was “BLANK” and then ERROR 51 occorred.

Replaced EP Cartridge (customer was using re~ed)

Z. Check cable horn DC Controller PCA isful@

inserted into connector at Optics assy. (J401)

2. Replace DC Controller PCA

3. Replaced Optics to DC Controller Cable. (RG10908-OOOC~

3-9

LJII/111/IID/IIID - FAULTS WITH ERROR NUMBERS (Con’t]

ERROR 51 intermittently Trying nod parts did not fi this problem It was

(Mike Duthie-Aberdeen) noticed that the customer was extremely gentle when

(iVewInfo) (LJ.1~) closing down the lid. Whereas the CE was not so

daimy when shutting the lid. A@ustmestt of the hinges and locking mechanism resolvedproblem. It was believed that the Laser Shutter was not opening folly. Thisfault ocmred on a UIID.

Intermittent ERROR 51 On power up ERROR 16 (Toner Low) occurred, Main

(Frank Dasilva Ihndon}

~ew Info) ptiter (in ti case a LJIJD) the I/P feed solenoid was

(LJIfD)

ERROR 53 (LJBD) Memory No

Incompatibili~ problem? placed lMb (33443-69001) (Rev B) memory b~

Wmsell - B!rtoke)

(Dave

(Mw 94) To resolve thisproblem the Formatter and lMb

motor turned. When print command was received by

heard to fie, no paper movement, then ERROR 51.

Replacing DCPS ASW resolvedproblem.

fiultifrnemory deinsttied born printer. CE re-

replaced Formatter PCA & DC Power Supply.

memory PCa ’swere reulaced as a uair.

Jntdent ERROR 51 / 52’s 1. Replaced Cabh (RG1-0908-OOOC~ from Laser

Scanner Unit (J451) to DC ContioUer (J202/203)

See Service Note 33440A-09.

2. Replace Laser Scanner Unit

ERROR 52, a blank page

moves through printer. (J401) to Optics Asay. Reseated this @le.

ERROR 55? I. Replace Formatter PCA.(See S/N 33440ABIAU-09

ERROR 55? my when Script Cart’s (33439P/Q) are installed m a ~ the printer completes Self-Test and installed. (LJIII only)

post-

L Scanner Motor cable NOT mrmected come~

2. Rephrce Laser/Scanner uble RGI-0908-OOOCN

if comected to a Vectra).

2. Repkce DC Controller Pa.

3. Replace DCPS ASW.

4. Replace Formattw & DC Controller PCA’s as a pair.

When

some HP PostScript cartridges (33439P/Q) are

then lock%up in tie start-up page. The main motor starts, but paper is never picked from the paper tray. Error 55 maybe diapbyed if the printer is powered on for more than 3 minutes. Tbia situation only occurs* ~s that have the newer DC Controllers (P/N RGl2706-OOOCN).The exchange PCA (33449-69004) is NOT tiated by this problem The PS tirt’s must be

exckaizged with another with a DC of 3150 and may

have a blue dot on its shelL See service Note 33439P-

01 or 33439Q-01 forfirther detail.

3-1o

LJII/111/HD/IIID - FAULTS WITH ERROR NUMBEN (Con’t)

ERROR 55 or 64 or 67 or 12

ERROR 55 or 12

ERROR 63

ERROR 67 when print command is received by Fo-tter PCA@ew Info)

~Donaldson - SQF)

mew Info)

Intermittent ERROR 67?

(New Info)

ERROR 70 When downloadiug soft-fonts (LJHD)

ERROR 79

1. Replace HVPS.

1. Check Jumper J209 is connected on DC Con PCA.

2. See Servti Note 33440AB/AU - 09 when wnnected to a Vectra.

1. Fauky Expansion Memory PCA.

2. Using Non HP Memov.

If Formatter PCA is disconnected the print engine

test does nrn OK Replacing DCPS as~@ed this

problem. Other causes for this error are

L Replace Formatter PCA

L Replace Formatter PCA.

2. Replace HVPSAssy.

Not enough memory!

L Non HP Font cartridge causedproblem

2. Non HP Memoiy

3. Faul@ Formatter PCA

4. Faulty HP Memory or Font

5. Check any boards installed in Optwnal WO slot,

eg. Network i-Data boards, etc

ERROR 79 (Olae)

(LJIID)

ERROR 79 Customer using HPGL2 commands and getting this error mid-print?

(Mike Duthie-Abmdeen)

(New Info) (LJII~

Only faila in Dnplex mode, using none HP font, normally on one particti progrramne. Programme works tie on LJ2000. Problem caused by undetined

char from a char-fon~ normally treated as a “space”, m this case it does not. Solution, do not use these

none HP-fonts on HP LJpn.nters..

All the normal parts were replaced, Formatter, memory,

driver, etc without resolving the problem. By changing

from intirnalfont 12 to printer default, itprovided

the solution to this probhm?

3-11

DELAMINATION of the rear side of page near the leading tol edge. There can be two marks which are in line with the two ecentric cam rollers mounted on the I/P Pick-up Assy. The probhu can be intermittent.

(Updated Info)

(LJII/111/IID /IILD)

~ problem can ocw on LJM3JAD & 1110’s.

1. Changing media to a Laser Quali@paper that

adheres to the Paper Spec’s Guide always resolves this problem.

2. Replace both tke Separatin Pad & ~ feed Assy.

3. If customer is NOT using extremely light or heavy paper (161bor 361b), remove one of 2 tension spr’gs

(P~RA1-3871-OOOCN) on Reg Assy. Remove

the spring on the side that delamination occurs.

DO NOT remove both springs.~Suuuorted bv Div]

4. If 1 & 2 do not work for you, try tkis unsu~uorted method. Remove high spot off the 2 ecentric cams

these cams arepart of the W feed assy.

NOTE: Ifthe paper is of extremely poor quality items’

2,3 &4may not help at sAIL.......

Eroneous lines appearing on XY Chart, printing in HPGL2, see example opposite. The problem appears the more complex the XY Chart plot is.

(LJZI~

~11 Intermittently drops

OFF-LINE?

(G. Clark - Leeds - Jan 94)

COMPLETELY DEAD? No Display, ERROR 12, this fatit cotid be Intermittent

(Updated)

1. Use hstest rtilon of bare (DC 19900430) on the Formatter PCA.

iiil\(l

Replacing Formatter PCA seem to resolve thispbin.

1. Replace DC Controller PCA

2. Replace Formatter PCA

3. Remove any PCA rnstalled in the optional I/O

(JetDirect XIO, i-Dat~ etc), is fitit resolved? If

not replace this PCA.

4.. Replace DC Power Supp@. If the DC Controller &

Formatter PCA are removed you can check DCPS by grounding pm 7, Remote Enable line, on the DC Power Supply, if the sIIpplyis OK the + /- 5V& 24v

shotid mme up. If not replace DC Power Supply

Modde.

See FhIw Diagram towards beginning of this setin

3-13

<<<Emoneous, unwanted

Data

LJII/111/IID/IIID - MISCELLANEOUS4Cont)

Display goes Blank for very Top lid switch was found to be moment~ opening Aort periods of time? Then OK causing this intermittent problem

@ndy Buddle - Leeds)

flew Info)

Replacing DCPS assy resolved this problem.

Intermittently goes DEAD?

@ill Baigrie - SQF)

Intermittently goes DEAD or All norrmd parts were replaced for this fatit, but prob

loses DISPLAY? (LJIH’) lem still preveiled. A Mains Monitor was installed and

(JohnHolmes - Gatwic~

mew Info)

FRONT PANEL DEAD, 1. Replace Opera@r’s Front Panel PCA.

DC Power still active, fans

-g?

DATA LOSS or G-LED See Service Note 33440A-1. data on Centronics port? CORRUPT DATA when Use HP 24542D Centronics cable:

Soft-fonts or dotioaded.

No- text seems OK This H was connected to an H3M PS2 using Centronics protowl.

FRONT PANEL LED’s Replace AC Power Module.

ON ALL THE TIME

SELF-TEST All Front Panel LED’s on.

Fuser Assy making a See Service Note 33440A U-02. A viiration proof “SQUEAKING NOISE” pad at LH end of Fusing Assy beeomes completely dry

WillNot Run? Replace W PCA.

Repbce DCpOwer Srappti.

highlighted 900vpeaks between neutral& earth.

2. Replace Formatter PCA

of lubricant, thus making this noise. Luticate with CK-0544-OOOCN.This will apply to ALL LJ’s utig this print engine.

NOISY, Squealing, Chirpiug.

(LJII Only)

The Upper Cooliug fm brass bushiug lubrication is

-g-up? Sometimes this ti may seize. See Setice Note 33440A-11, with fan assy RH7-

1047-OOOCNsimply replace the bushing and the

bushing holder ONLX Please note, the LHIItHD use

RH7- 1074-OOOCN&s. These models C~OT use these replacement parts.

3-13

LJII/111/IID/IIID - MISCELLANEOUS (Cent]

NOISY when Marn Motor turns on? (LJIII/IIID)

(Andy Suen)

(New Info) Supply~d tkisproblem in the LJIII & LJIHD.

NOISY when Main Motor turns This ~ure can occur with the use o~NON-HP Toner

on? (LI~In~~Im)

(Hans Hjertquist - Boise)

mew Info)

Grinding NOISES? @IZ~

(A. Cowie - Leeds - Spt 94)

EXCESS TONER depo=mg

rnside ptiter?

Print “CRACKING” when paper is folded. White lines

may be seen rmming tbrough

characters where page is

folded.

When motor turns it makes a loud grinding noise, very similarto gear meshing prodems. All mechanical parts were replaced. Replacing the DC Power

‘fhis codd occur on the ~ & ~ ptiters.

Cartridges. Some of these cartridges use material

in their dnun drive gears that is incompatible with materials used m the LJ drive gears. The red is ag~ated wear and results in premature failure

of the LJ drum drive gear P~RSI-0105-OOOCN.

Repkrcing Lower Fan resolved thfi problem.

Dweloper Bias constantly ON, due to a S/C on ribbon cable J211 between 6 and 7(DC Controller to HVPS cable.) Replace Pm HWS Grbie RGl-0906-

000CN

Toner comprises of pigmmted plastic material and iron oxide. When subjected to high temperatures these individual pkttic particles become part of a larger plastic image on the page. When the page is folded the plastic must give m some way. If the print image is well set rnto the paper, the resulting break in the phstic will NOT be very apparent. However, if the toner has NOT been able to penetrate the paper fire$ the “Crack” in the plastic image will be amplified. A white line will be seen through image. To Minimise

1. Ensure paper ineeh ALL Paper Specs, see guide

5002-1801. In pardcularpay attention to the smoothness (100-250 SheffieU) antior “Wax Pick” ~ZI Dennison)

2. A lighter Densi@ setting will ensure less toner used, thus minimisingproblem.

3. A lighter character stroke may also help

L,JJIIfier “Paper Source Error ‘ Customers who have many LJII’s on local networks

such as “PC LOAD LETTER” other users on local network cannot use b printer until message is cleared. This h NOT

aproblem with the UII.

&then purchase L.JflTsnotice when one of the users selects an rncorrect paper size, all other users of this ~ are unable to ptit on it until the printer is rnmmidlyreset. This is NOT tree for the L.JTI.

3-14

LJII/111/IID/IIID - MISCELLANEOUS (ConQ

NO STATUS

Returned by printer. Connetted to 3000.

I/O Protocol changes horn CENTRONIC’S to Factory

Defati

Optional I/O which was selected via the Front Panel returns to default Serial? (LJII’IID)

(Anja Rabold - PGE)

CANNOT Configure PROTECT to Letter, Legal

etc, size paper together with the 1. In%te a 08 Cold Reset by @ressing ONLfNE OPTIONAL I/O. whilst powering on printer.

(Hans Hjertquist - Boise) CONT~U~SET keyfor 5 sewnds.

Request MO

(LJID/ZIZ/IIfD) the status readback. This allows the LJIID, LJIII

SERIAL?

flew Info)

PAGE

(~111/IIIID) ~ew Info) 3. Initiate a 07 RESET by depressing the

‘fke L.iJIO and later were unable to respond to status requests (Ese ?, DCI). The Optional Status Read board (26013A) plugs rnto the Optiomd I/O slot, provides

& LJlllD to be comected to a 3000. Term-type 26 is recommended. Install 26013A into Optinal I/O

slot to resolve this problem.

Power Fails may cause tbi.aproblem LJIZI/IZfD’s

may be susceptible to this problem due to power

interruptions. Ensure customer has a stable AC Powe]

SuppZy. InstallMains Monitor to check-out supply.

Ensure cutimer has stible AC Power Supp@.

Inti Mains Monitor to check-out supply.

If the Optional I/O cannot be selected with Page

Protect try the following:

2. Set Page Protect to the sti of media required

4. Cyclepower to thepri”nter. .

5. Go to 2nd level menu, within this menu select f/O = OPTIONAL.

NOTE: This procedure will reset to fkctory defiuks, therefore prior to initiating above obtain copy of

SeK-Test with customers cdguration.

Not FUS~G

(m/ m) reduce the costs and rnvolves the removal of Fuser

Cannot OPEN TOP COVER

when the release button is hard tit piece of plastic, 3mm thick and broad

depressed. enough to diatriiute a force across 3-4 cm of cover

COIT+? See Service Note 33449A-04 or 33459A-02, MS

descri%esa motivation to DC Controller PCA to

switch (SW205). When ever this PCA is replaced the CE sholdd pay partiti attention to the presence or absence of SW205. A circuit trace MUST be cut if

SW205 activating lever is not present.

See Service Note 33449A-03, open using tool like a

(LJII@ aurfkce.@e. 3.5” disc). Place between top cover gap,

near release button and pry open.

3-15

T TTT~ / T TITTn - MTCPWT T .ANF.nlTS PRnRT .W,M,C

U“*. U f -. . ..- — . ...”----. . . --- vu . ----------

Customer was attempting to

This is not Supported and annot be done

print the 1st side in Portrait & the 2nd page in Landscape?

(Duplex Mode - LJI~)

Does not Feed from Lower Replaa”ng the DC Controller resolved the feed Trsy & does not FUSE

problem.

correctly? (LJI~HIfD) Note The problem with not fising was due to the

fiser ~ch on DC Controller NOT installed correctly after the PCA replacement.

Not FUSING Correctly tier

Fuser switch SW205 has been removed from L~ replacing the DC Controller & L.JIICD printer to reduce costs. When replacing PCA DC Controller, note the presence or absence of this

(LJIII/IIID) SW205 activating lever. If absence cut trace on new

DC Controller PCA between SW205 pin 1 & R889.

See Service Notre 33449A-04 or 33459A-02

Printed image on front side The Duplex page is printed tist with LJIblDD’s, of page is always longer therefore side 2 passes through fiser first. The paper than the rear side in Duplex. ahrinks, then aide 1 is printed next. Tkia side goes

(LJI~ /LJIIID) through the fiser again In Total side 2 gets shrunk 2

times. This is why the front aide is longer than the rea

tide.

Paper BUCKLES as it comes up tiom the Doplexer. Also the prin

image SLIPS DOWN page by

25mm to 30mm wew Info)

(Steve Mmshall - Washington)

The active signal to SL2 was LOW at all times. There

I fore this feed mech-

was ON all the time. This

forced the paper to arrive earlier to the registration

assy. This caused the paper to buckle. If the paper

manages to get through the Registration Assy the

image has slipped down tie page by 25 to 30rom

(LJIILD) 1. Replace DC Controller

2. Replace SL” Duplex Drive roller Clutch Sohnoid

Paper “DOG EAR’s” utig A5

sixe paper, fed from manual tray

(M. Brabyn - LJ3 - Jan 95)

The leading edge corners are bent back to give the so

; called “Dog Ear” effect. This is caused by the

depector ti the Fuser Em-tarea. A5 paper just happens to coincide with2 of tkese deflector pawls. Aa A5 paper is not supported the unoffical actions to try are L TV 100grm paper straight through.

2. DispLrce manual feed guide on ussette tray cover, remove one screw & allow guides to move, then

veplace this screw. The disadvantage of this is the

the printed image wotid have to be offset to compensate.

3-16

Lnm~D/lIm- PRINT QUALITYpROBLEMS

Repetitive marks on paper, print defects appear at rem intervals

(LJII/HD/HI/IIID)

95mm apart (EP Drum)

2. 80mm apart (Upper Fuser RoUe@

3. 65mm apart (Lower Fuser Rollm) 51mm apart (Toner Cartridge Developer Rolleq

5. 44mm apart (Lower Reg Rolled

38mm apart (Upper Reg Rolled

z 13mm apart (Reg Assy Transfer Roller)

BLANK PAGES?

(Ott94)

WHITE or BL~ pages

When printing tie FIRST PAGE it was “BLANK” and

tken ERROR 51 occurred.

BLANK column down page, apprx 6cm horn RHS and

lcm wide. DUPLEX ONLY

(Dave WasseU- S’ton)

1. Emp@ EP Cati

2. Sealing tape not removedfrom EP Cad

3. Brokem Transfm Corona (See S/N 33440A-6)

4. Are connections on EP cart & HWS damaged, cowoded, dirty or missing.

5. Replace HVPS or HVPS Cable to DC Controller.

6. EP GrtDrum not rotating.

Z Replace Laser/Scanner Assy or Laser/Scanner

@De Controller cable

8. repIace DC Con@oUm.

9. Bent top cover hinge brackets?

1. Replace Transfer corona? See Service Note

33440A-6 (Disconnect Pink sleeved wire on HVPS

to ascertain ifimsge is on the drum)

2. Top tige badly bent, no mechanical comection

to drum from tke main gear train. Replaced the two

lid hinges.

3. Replace DC Cent PCA, Not turning on HV

syste~ use Service Tool PCA to ve~ LED on.

4. Replace LJDrum Drive gear RS1-0105-OOOCN.

1. Check cable from DC Controller PCA isfully inserted into connector at theOptics assy. (J401)

2. Replace DC Controlhr PCA.

3. Replaced Optics to DC Controller Cable.

Replaee Transfer Corona

BLANH Page? (LJII.

(Steve Oakes - Cheadle)

~ew Znfo)

EP Cartridge Drum Moving, due to damaged printer

Drum Drive gear M1-0105-OOOCN. This is

tk.eLJ, not part of EP Cartridge. Aggravated wear

of this gear w be cauaed by the use of NON-HP Toner Cartridged (ReMed). Replace this gear.

3-18

internalto

LJII/111/IID/IIID - PRIN

BLACK Pagesprinted?

(Ott 94)

QUALI~ PROBLEMS (Con’tl

1. Repace EP Grti

2. Check connections on EP Cart & HWS connectoz

3. Replace H~S or HVPS to DC Controller cable

4. Replace Laser/Scanner assy or Laser/Scmner to DC Controller PCA abla

Random Honontal BLACK Lines?

(Ott94)

TH~ LINESacrosspage

intermittently, can be associate with intermittent Error 41, 51

& 52’s.

Many BLACK Horizontal

lines down page?

(~IILD - Feb 95)

Vertical White Streaks

(oc@4)

THJN Vertical DARK Black Streaks? (Ott 94)

BLACK LINE down RHS of sheet.

I. D@e~”ve or improperly seated Fibre Optics cable

2. Replace LasmBanner as~.

3. Replace DC Controller PCA

4. This applies to LJII & III ONLY, Rephce Laser/ Scanner cdle RG1-0908-OOOCN

Replace RGI-0908-OOOCNLaser/Scanner cable. See

Service Note 33440A-09

Some of tkese horizontal Black lines were pencil this others were approx lmrn tide. In wme examples these had lines across page which appeared all down the page In otier examples ordya fw kes appeared. Replacing

the Laser/Scanner to DC Cent PCA cable resolved nbm.

1. Empty Toner Cartridge

2. Dirty Transfer Corona

3. Dirty Beam-to-Drum Mirror.

4. Replace Laser/Sunner assy

1. Dirty Prima~ Corona ~re

2. ChecWrepfa@ for scratches on EP dram.

3. CheMreplace Fuser rollers & haningpad.

Clean Corona m EP Car&ridgewith Cletig TOOL Angle tool to get to extreme rigkt hand edge of the

corona wire cleaning slit. This problem has been

resolved by extending this slit on the ~S of the.

Toner carti”dge. This was rnplemented some time ago.

Pencil Thin BLACK L~ down page, appears on Text sent from host or Self Teat or

Wt En@e Test. Maybe

ticuk to see on Print Engine Test, the line will appear

bolder. (LJII~

Replace Formatter PCA

3-19

LJII/111/IID/IIID - PRINT OUALITY PROBLEMS (Con’t)

THIN Line down page, it appeared approx 3 inches

(75mm) from RHS of page. (Tony Gn~fiths - B’ham)

Heavy media was cautig problem(110 grins), using

90 grnap~er resolved problem.

BLACK STRIPE on RHS of Page?

On allBLACK page, at 6 lpi

WHITE horizontional lines

at intervals of 50mm appeared

down the page. These ALWAYS appear in exactly the same place on the page. However at 7 & 8 lpi it is

OK? (LJ~~~

(Ott94)

BACKGRO~?

(Ott94)

BANDS of BACKGROfJND Normslly down page ody where characters are printed.

S@lex OK 2nd page of

Duplex shows this problem.

GREY BACKGRO~

~ Primary Corona m EP Cartridge.

L Clean this wire of replace EP Cartridge

In this case the FORMATTER PCA replacement

@ed this problem.

customer Orginal which Me& 33449-60001, Rev A

Kit PCA which tied problem

33451-69001, DC 3040

1. Set Print Deirsi@ towards “1” to minimise back

ground

2. Medti out of Spec

3. Is Printer very dirty inside? Clean.

4. Dirty prima~ Corona, clean.

5. Replace EP Cartridge.

1. Check qual~ ofpaper.

2. Replace Trairsfm Corona.

Caused by unsupported media, shows up partictiarly

well on envelopes.

GHOSTING OF CHAR’s My very slightly in the top LH comer of page. (LJIID)

0~ COLUMN D-R

or SLIGHT GHOSTING, 2 inches born LHS of page.

FAINT PRINT?

(Ott94)

Replace Transfer Corona.

Replace Transfer Coron~

L Emp@ Toner Cart?

2. Adjust Print Densi@.

3. Media out of Spec

4. Dirty Transfer Corona, Clean or replace.

5. Replace HVPS.

3-20

LJII/111/IIDflIID - PRINT OUALIU PROBLEMS (Con’t)

FAINT Pm& LOSING Replace EP Ca~”dge HALF OF CHAR’S on RHS.

Parts of print MISSING or White area’s where text shodd be, typically at the edges oftke

The toner cartridge inst~tion label which is attached to the Mirror Shutter Assy inside the hinged lid of LJ had become detached and was rntetierring with the

page? (New Info) laser beam on its passssge to the EP DrmtL This

(LJII/IID /H.I/IHD) problem could occur on any of this printer family.

Remove offending label

RHS Text MCSSING or may 1. Empty EP Cati

be DISTORTED

2. Bean-to-Drum Miwor is bent or misaligned

(Ott94) 3. Bent Top Cover Assy Hinge Brackets.

WAVEY Print?

Repface LaserBcanner assy

(Ott94)

Intermittent POOR PRINT Replace Scanner As~. QUALITY when printer is cold. Text appears -?

COMPRESSED Characters. Faulty EP Cmlridge

Text appears SMEARED With BLACK BLOTCHES. These cable. (RGI-090S-OOOC!N)

blotches appear to be 3.7 inches

apart

running do~ the page.

1. Replace HVPS (J601) to DC Controller (J21 1)

2. Replace DC Controller.

THIS FA UL.TCAN BE SEEN USING SERVICE TOOL PCA, PRIMARY CORONA PEWNENTLY

SWITCHED ON)

SMUDGES on back side Replace RG1-0906-OOOCNHigh Votige Cable See

of page, EXCESSfVE toner

Service Note 33440A-09 built up around corona, 94mm Repetitive pfit defect that

appems on mntiguous pages, Yelowing & deterioration of iu-

ternsl components may occur. S~GES down page, tis occurs on page 2 wkich is the

page to be ptited (LJIIID) rotated 90 degrees to the nom

first

(New Info)

This problem exkiiits itself as’’scallops’’down the page

Tkese “scallops” are similar to horseshoes or letter

L Cfean Static Teeth.

2. Reptie Transfer Corona

SMUDGED ON 3rd LtNE of PRINT?

Caused by a aBDT 6 Bin Sheet Feeder” (None ~

sheet feeder attachment to the LJ). It can easily be

cleared by disconnecting the Sheet Feeder tefig LJ as

a stand-alone priuter.

. -.

5-L 1

“u”

T 111 ~TT /TTm/TI1n Ualllltxllluflllw - L LUIT 1 Wunmfi a * . xxuuu~..=u t,--- -J

DDTNTW fiTTA T TW DT?nRT Ti’MC (~nntt)

SMUGDED Band with Over-

Print? (Ott 94)

SMUDGES dow page, this occurs on page 2 which is theTh

fist page to be printed

(LJIIID)

mew Info)

Mer long periods of dtemate printing from Envelope Tray,

Upper Tray, then Lower Tray DARK Background SMUDGES appears in the Upper middle part of page. Replaciug with NEW EP Cartridge appears to fi problerr for a short period of time and then returns. (LJIIDfiJZIZD)

37mm Smear problem, a smear manifest itself on A4

paper 37mm from the bottom

of the page. The text at this point appears “bold” when compared to the rest of the priut.

PRINTS JIWERSE WEO

Worn Feed Rollers AST and SePar@”on Pd

This problem exhiiits itself as “scallops’’dow the page.

se “scallops” are -r to horseshoes or letter “u”

rotated 90 degrees to the nom

1. Clean Static Teeth.

2. Replace Transfm Coroir~

The combination of envelopes and paper used in the Upper Tray caused tkia problem Sele@”on of

improved quali~ envelopes andpaper reduced

problem dramatically.

Note By leaving tie fatity EP Cart’s m box or dark

cupboard, they will recover and will be usable

again.

Replace Registration ASW.

1. DC Controller PCA.

2. Replace HWS.

EXCESS TONER deposited print engine?

Fanl~ Registration

(Ott 94)

IMAGE SKEWED?

(Ott 94)

Developer Bias cmstantly ON, due to a S/C on ribbon cable J211 between 6 and 7 (DC Controller to WS cable.) Replace RG1-0906-OOOCNHV cable.

1. Worn Feed Roller Assy

2. Replace Registration ASV

3. Check or Replace faulty Cassette Tray.

4. Out of Spec media?

1. Ensurepaper & Paper Tray are instilled correctly.

2. Replace worn Feed Roller Assy.

3. Replace Registration Assy.

4. Is the Fuser Insulator Pad Missing?

LJII/111/IID/IIID - PRIN

OUALITY PROBLEMS (Con’t)

FIRST LINE of characters SL13’P~G DOWN PAGE slightly.

JMAGE Moving DOWN

page? (LJIQ

(S. Davies - Cheadle - Ju~ 94)

Character VOIDS / POOR

FUS~G?

(Ott94)

BACK of Page DIRTY?

(Ott94)

Light-Brown “OIL -LI~” IOmm Stain on the Front RHS of a DUPLEXED Page.

(Mar 94)

1. Regtiation Solenoid stictig, replati

2. Repface Paper ControlPCA.

When printig SeK-Teat, prints 1st page OK 2nd page image moves down page 5mm and every following page begins printig at this pornt.

Replacing Paper ControlP~ resolved thispbm.

1. Tiy setting Print Dens@ toward “9”.

2. tiver Interlock switch on DC Cent not activated (Switch notprment on all DC Cent’s, see 33449A-O< or 33459A-02).

3. Out of Spec Me&

4. Dry Fuser Cfeaniug Pad.

5. Replace FuserAs~.

1. Inside of Printer Dirty?

2. Lower FuserRoller contaminated (i.e Preprinted

Letterhead melting infiser See Paper Spec’s.

3. L2 & LJ3 ONLY- use Test Tool to vetifi “Corona

wire Stuck ON”. Repkrce RG1-0906-000~ cable (HVPS to DC Controller).

This stain can appear on the front aide of a Duplexed Page when the duplex fmtnre is NOT used for several weeks. Thisproblem will @ically r~olve itself after

10/50pages. This is due to “Oblique Roller” m Duplex area, this roller has a preservative which can awmnulate on the roller ifmmsed. See Service Note 33447A-10 for more detail.

1. Run tkrough 10/50pages to cfean this roller.

2. Clean roller wtih paper, not alwhol

3. Replace Oblique Roller RGI-1356-OOOCN.

STREAKS down the Page?

(Gaiy McGaw - LJ2 - Jan 95)

These streaks were of a lighter backgound m appear-

ance. Adjusdng Density seemed to rnprove towards being acceptable. The use of Non-HP EP Toner

Cart’s were the cause of thispbm, use HP EP Cart’s if more reliable reauks are required. Trade billing

customer &odd be considered.

3-23

LJIfiI~D@ID +PAPYRPAT? PROBLEMS

ERROR 13, tier approx. 20-30 pages, paper “ammingunderneath

pick-up rollers. When tkis fatit occurs severaJ lines are partly overprinted.

ERROR 13 Intermittmt

Intermittent ERROR 13, can can be associated with Error

50.

ERROR 13& 51 ~ID) Very Fax Lid switches on DCPS Supply assy, replace Intermittent, motor does not and does not feed paper.Error

13 appear frrst and then51.

E~OR 13 Intermittently anc Main Motor seems to me as paper moves through the printer? ~IID)

(S. Stanway -Bill’cay - an 94)

ERROR 13 ON POWER-UP.

(New Info)

(Kim Bateman - Basingstoke)

Replacepick-up assy complete, including clutch.

Printer had been worked on prtioualy, CE had routed fire optic cable wong way, tkus allowing it to restrict movement of paper out sensor bsiL Take care to

Route Fibre Optis cable correctly.

Replace RGl-0907-OOOCNFusing ASW cable, this is

known to be intermittent.

this module

Teeth were missing off one of the “Upper Feed Drive

Assy” gears. ~~RG1-0934-OOOC~ See page

h LJJJM33

Upper CooLingti was found to be pulLiugdown 24v.

Replace Upper Cooling Fan.

Service MsnuaL

8-34

ERROR 13 (Paper Jams) and Tearing RHS of Sheet

False ERROR 13 or Paper Out or Manual Feed problems.

ERROR 13 when uaiug “FOOLSCAP” media. Leaves approx. 1 inch of paper m the fiser unit.

ERROR 13 from Upper Tray Only?

(Graham Stead - UK- Feb 95)

{L.JIIID)

Caused by small steel tab (Far LHS as viewed from

front) on paper cassette tray. Iftis is bent do~ it

will cause paper jams. Correct by straightening this

metalwork on the Paper Cassette tray.

Paper out fig becomes wedged -g to conditions descriied. Fix was to reinseti LH end ofpaperjlag in

ifi pivotposition.

As this paper is a non-standard size for the paper trays, k can only be realiatictiy fed via manual J/P.

Ensure the escape sequence to select “Legal Size”

paper is implemented

Replaeing the following parts resolved this pb~ not

sore wkich part actually tixed pbm

1. Upper Main Motor& Drive assy(Fig 8-11 item l&3

2. UnDerFeed Drive assv (Fiz 8-12 iten 1)

3-24

LJII/111/IID/IIID - PAPER PATH PROBLEMS

IMAGE Moving up or down the PAGE, perhaps up to

12mm?

(Guy Picton - Nov 94)

LINE SPACING between LJI & L.ilI D~FER?

Faulty Re@tiation

(Ott94)

JMAGE SKEWED?

(Ott94)

S~W PROBLEMS?

(Top and bottom)

( margins ordy )

S~WED by 5mm at the

top of the page. (LJLI@

I. Registr@”on Solenoid sticking, replace.

2. Replae Paper ControlPCA & maybe DCCont

Note Firs page may be affected o~.

The L.11has a Merent paper path when compared to

the L311.HP speczfi that line d~ference can va~ by

+/- 2.5mm perpage

1. Worn Feed Roller Assy

2. Replace Registration Assy

3. Check or Replace faulty Cassette Tray.

4. Out of Spec nredti?

1. Ensure paper & Paper Tray are intilled correctiy

2. Replace worn Feed Roller Assy.

3. Replace Registration Assy.

4. Is the Fuser Insulator Pad Missing?

L Have you replaced the Scanner Unitprevwusly?

If so check Service Note 33440A-2.

2. If aU elsefails re-shim Scanner Unti ~ Shodd

be fsctory-seq but m one case we found the setting rncorrect)

“L” shaped bracket on LHS of the Paper Cassette Tray which is held m posidon by plastic peg had lost its circlip. The “L” ahaped bracket had worked lose,

reseated and returned a“rclip to resolve probti.

DELAMINATION of the rear tide of page near the leading to] edge. There can be two marks

which are in Jinewith the two

ecentric cam rollers mounted on the J./PPick-up Assy. The probhn can be intermittent.

(UpdtiedInfo)

(LJII/111/IID/IIID)

No MANUAL FEED

~ problem can occur on LJMIIMD &

Changing media to a Laser Quali@paper that

DID’S.

adheres to the Paper Spec’s Guide always resolves

this problem

2. Replace botiz the Separation Pad& ~feedAs~.

3. If customer is NOT uhg extremely light or heavy paper (161bor 361b),remove one o~2 tenstiw spr’g

(P~RA1-3871-OOOCN) on Reg Assy. Remove

the spring on the aide that delamination occurs.

DO NOT remove both springs. (Suuuorted by Div]

4. If 1 &

2 do not work for yoq try this unsnDvorted

method. Remove high spot off the 2 e~ti cams these cams arepart of the ~ feed assy.

NOTE: If the paper is of extremely poor quality it-

2,3 & 4 may not help at

sAIL.......

Replace Paper ControlPCA.

3-25

LJII/111/IID/IIID - PAPER PATH PROBLEMS

PAPER JAMS ~ DUPLEX MODE (~~RMITTENT) Paper -jamsjust prior to reaching the Fuaiug Aasy. Duplexing image may shift up the page. (LJLfD)

PAPER JAMS as paper be~s It was noted that the awitchback was slightly tied

to exit fuser rnto SWBACK

area.

(LJIID/ZIIfD)

(Ian Longsta#-B’ham)

See Service Note 33447A U-03 concerning the

premature failure of Duplex Dn-ve Roller Clutches.

on RHS (as viewed from front of printer), this was preventing the operation of SL7(Switchback Deflection

Solenoid) m the awitchback.

BLACK bracket on RHS of switchback was correctly

positined to resolve problem.

Does not Feed from Lower Tray & does not FUSE corretily?

(LJZID/LJIILD)

Hig,brate of PAPER JAMS m DUPLEX mode. PJ occurs as leading edge exits the Vertical Reg Guide and catches on Mylar atrip on lower guide m the duplex drive Roller Assy. PTs iuceaae dramatically using LEGAL sue

paper. (LJIID)

PAPER JAMS m ~plex Mode ody? (LJI~)

Paper appears SKEWED at the bottom of page or.dy (Portrait). There is a slight “kiuk”in the vertical border

that be-s approx 38mm

from bottom of page. Duplex Only. (LJI~ /LJZIZD)

See Example opposite.

Replacing the DC Controller resolved thefeed

problem

Note The problem with not fnaing was due to the

fiser switch on DC Controller NOT installed

correctly after its replacement.

See Service Note 33447A-07; Replace Dupla Drive

Roffer Assy, fewer guide with RG1-1345-060Ch?

IUDoplex mode the paper enters& exits the SwitchBack OK When appox half the sheet is still m the awitchback and half in the duple> the paper appears to slow down and stops with a Paper Jam 2 inches from the Duplex Drive rollers. Repfucing the Upper

Dupfex Drive assy (P~RG1-1344-OOOC~ resolved this probkm. There was rnficient nip between this

roll= and the Lower roller.

1. Replace Duplex Clutch (SL2) and its assoicated drive rollers.

<<<<SeK-TeS Border

Example

(Lucy Miles - Winn)

3-26

LJII/111/IID/IIID - PAPER PATH PROBLEMS

Paper “DOG EAR’s” using A5 The leading edge corners are bent back to give tke so

b paper, fed from manual tray?

(M. Brabyn - LJ3 - Jan 95)

called “Dog Ear” effect. This is caused by the

dejlector in the Fuser Em-tarea. AS paper just

happens to corncide wit.b2 of these deflector pswla. As A5 paper is not supported tie unoffical actions to try are

L TW IOOgrmpaper straight through.

2. Displace ntanual feed guide on cassette tray cover, remove one screw & allow guides to move, then repIace this screw. The disadvantage of tkis is the

tie ptited image wotid tie to be offwt to compensate.

3-27

LJWItiID/IIID -Postscript Problems

ERROR 55? my wheo postscript Cart’s (33439P/Q) are installed. (~ only)

,,,

When some ~ PostScript cartridges (33439P/Q) are installed in a ~ the printer completes Self-Test and then locks-up m the start-up page. The main motor

starts, but paper is never picked born the paper tray. Error 55 maybe displayed if the printer is powered on for more than 3 miuutes. This situation only occurs ti LJ13Tsthat have the newer DC Controllers (P/N RGl-

2706-OOOCN).The exchimge PCA (33449-69004) is NOT affwted by this problem. The PS Cart’s must be

-hanged with another with a DC of 3150 and may

a blue dot on its shell See service Note 33439P-01 or

33439Q-01 forfirther detail.

~MI~Dfl~I~ - ~~~ FEE@‘PROBLEMS

No MANUAL FEED

ERROR 13 when using “FOOLSCAP” media. Leaves approx. 1 inch of paper m the fuser unit.

Replace Paper Control PCA.

As this paper is a non-~andard size for the paper trays, it can onlybe reslistic~ fed via manual ~.

Ensure the eswpe sequence to select “Legal Size” paper is implemmted.

onPower up,normal 05 then

PAPER JAM (ERROR 13) when Envelope Feeder is Connected?

Mer long periods of alternate printrng from Envelope Tray, Upper Tray, then Lower Tray DARK Background SMUDGES appears in the Upper middle part of page. Replacrng with NEW EP Cartridge appears to fi problem for a short period of * and then returns.

Replace Paper Con@ol PCA

The combination of envelopes and paper used m the

Upper Tray caused this problem Selectin of

improved quality envelopes andpaper reduced problem dramatically.

Note By leaving the fiulty EP Cart’s m box or dark

cupboard, they @ recover and W be usable

agarn.

3-28

Classic Printers

LaserJetIIP / LaserJetIIIP

33471 /33481

BooMet Organisation - Please Read

Thischapterhasbeendividedrnto5 sections somepartsmayappemtwicemthese

sections,thisis to enableeasierlocation.The sectionsareasfollows

1) Faults with Error Numbers [Error 13k {Paper jms} in the Paper Path Section]

2) Miscellaneous Problems

3) Print Quality Problems

4) Paper Path Problems [All Error 13’s {Paper Jams)in this section]

5) PostScript Problems

Service Notes up to Ott 93

33471A-OIB 33471A-02B 33471A-03 33471A-04

C2007A-01 C2007A-02

33481A-OIA 33481A-02 33481A-03 33481A-04

Triacm Power SupplyAssy(115v Only).

StaticInducedError 41 (3 Diode Up8radeKit). IC301 on ScannerMotorAasymayoverheatandcauseERROR52. L~ / W+ / IllP PrinterNew FusingAssyComponentIncompatibii,

L311PPlusUpdateforLJBP& ~ ServicePersonnel. L~ / W / ~ PrinterNew FusingAssy ComponentIncompatibfity.

~ Updatefor W ServicePersonnel Cannottid referenceto tis ServiceNote? IC301 on ScannerMotorAssy mayoverheatandcauseERROR52. ~ / 13P+/ ~ PrinterNew FusrngAssyComponentJncompatiii.

4-3

LJ1lP / LJ~llP -,~A~TS ‘tiTH EmQR NtiBERS

Pleasenote thatall Paper Jams or Error 13’s problems, refer to Paper Path part of thissection of thismanual.

“02 WARM TJPJJ CONTINUOUSLY

ERROR 12

(very intermittent)

ERROR 12 from Power-up.

(Updated

WhencontinuousSelf-Teat

“04” isusedon PCL5printers

~~), ERROR 20

( Lnsyoccur.

(LJIIIP)

IntermittentERROR 41

(June 92)

(LJIP)

Fault traced to a bad wire conneti”on on J209 of DC Controller PCA (namely pin 1). This is the +24V to

MP PICK-UPSOLENOID.

Replace Density PCA

@roblemtemporaryclearedbytapprngonthisPCA)

1. Replace Densi@ PCA

2. Reptice Fan

3. Replace Scanner Motor (this motorpulled down +12v line)

4. Check PS4 & PS5 Sensors.

5. No Toner Ca*”dge Installed

6. Etirnal Fuser Access Door not closed

This is normalfor PCL5printer, NOT PCL4.Dueto

HPGL2veetorcommandsused on SeW-Teatandthe

additiomdmemoryit requires. The nmnberof pages of Self-testwhichareprintedbeforethiserrormay

occur dependson the avdable W. If printeris powereddown,moreRAM maybe available,tiereforf ERROR20 maytakelongerto appear.Note: Thisis

NOT an Error, no further action is required.

Install“3Diode” FuserAasy,thismotied assy preventsstaticdischargefromfiser roller.See Service Note 33471A-02B. ZnstaUdiode kit aspev service note(cheaper)rather than repkzcingfuser assy Anew &singasayisnow availableandis compatible withtheLJBP,L3JIP+& ~, withtheexceptionof theORIG~AL fusingasayusedintheLJIIP.See ServiceNote33471A-02B for detail

ERROR 41

ERROR 50 or PrintedO/p is not Fusingcorrectly.

90)

(Ott

This can be mused by the Paper Feed system. Have

seen this occur mostly from LC Tray.This occurswhen

paper gets out of~nch with the image system.

1. Does itfail from W Tray?

2.Check paper isfeeding correctlyfiom LC Tray.

1. Repticing Fusing Assy

2. Replace DC Controller PCA

Notetilwavs keep printerpowered offfor at 10

minutes to allow Fuser Error to reset orShort

C212 on DC Controller PCA to ground, printer

must be turned OS

4-5

LJ1lP / LJ1llP - FAULTS WITH ERROR NUMBERS (Con’t)

ERROR 51 Intermittent (LJIIIP).Norrmdtroubleshootingproceduredoesnot resolve W problem.

(Mar 94)

ERROR 51?

(LJIPBJIHP - Jan 95)

ERROR 52

@ew Info)

ERROR 53

ERROR 57

ERROR 79

(Trevor Smith - B’ham)

Jfthe normaltroubleahootigpathsfm andthenormal assydcomponentshavebeenreplaced,pleasecontact

RCE forfurther action plan, cold environments are

known to cause this problem on some LJIZIP’S.

This can be caused by Non-HP Cart’s (Refdled).

JfnonHP CartisusedtryHPEP Cartto atleast

eliminatethispoaiii~. Ifthisis thecausem normal circumstancesthecustomerahodd be billed.

condensationaccurmdatingon ScannerMirror.

Sw Sewice Note 33471A-03 or 33481A-02. Reptice scanner motor assy, noteithasthesamePIN astheoldassy,an#or inrprove environment where

printer is located.

P/N RGI-I 771- OOOCNScmner Motor Assy

1. Error 53 Unit 1- Replace top memory card

2. Error 53 Unit 3- Replace bottom memory

card.

I. Error 57 Unit 1- Incompatible memoV card (top)

2. Error 57 Unit 2- Incomp&”bie memory card (boo

‘fhisLJIIPhad512Kb of memo~, thecustomerwas

usingWINDOWS. me memory* windows NOTE:Ingene~ for Error79, thiscanbe causedby

So&are/Drivers, MemoryPCA’S,Font-MacroPersomdityCartridges,optionalI/O cardsorFormatter PCA.

4-6

LJIIP / LJ1lIP : MISCELLANEOUS

4-7

LJ1lP / LJ1llP - MISCELLANEOUS (Con’t) PS BUSYwhenusingHP

PostscriptCartridge @ 33439P).A eontirmous“PS BUSY” conditioncanoccur

if “AUT().CON~lt is ON andthedo~nt islongerthan

I to 2 pages.If thepageis priutedit mayresultm missing lines,Wed te~ tiormed letters.Faultypagewill be

ejectedandErrorwillbe displayed.

33481A W withPostscriptinatalle~ recognisesprinter as a ~ (512Kb)?

(Updated)

Thisa similarproblemto theIntermittentError41, causedby staticdischargefromfiaer assy.PS can

notreportError41, insteaditdisplaysPS BUSY.

Install diode infuser assy (Cheaper) or replace

@ser assy(Eqensive). See service note 33471A-02B

A 33439P moatprobablywillbe installed,a LJIIfP

requires the Postscr@t catige 33439Q. A LJIIIP an also use the C2089A Switehable PS Ca~”dg&

See Postaeriptcompatib* matrixinsection 1 of this

book.

LJDJPIMAGE MOVES DOWN page by Approx. 3 inches. Thisproblemcan occurwhenPaci~c Page

Postscn>tplug-in cartridges

are usedwiththisprinter.

PrinterOKin PCL mode.

(NewInfo)

REGISTRATION CHECK

See Page seetion4 m Service

Manualfor RegistrationAdj.

(Ott 94)

Theproblemhasbeenidentied do~ to theNVRAM page countof theL~ causedbythePacKcPage PS Cartridge.Thispagecounterdoesnot rncrement usingthisPS cartridge.Itseemswhenthe counter rmches2047, for somereasonthePS Cartbelieves ithas a Legalpapersizeinstalled.Thisis why print imagemoves downthepage.

CE’s have in the past replaced both Formatter and DC Controller PCA’$ thiswill&m the shorttq butwill fd againwhenthepage munterreaches

2047.

ThisisNOT a HPproblem, the customer MUST

contact Pacz~c Page

A temporaryworkaroundk

1. Resetpage counter to zero via Service Mode,

remove Pacr~c Page PS cartridge to do this.

2. Use HP PS art 33439Q or C2089A{LJIIIP on~) ~ problemahorddbe resolvedby now, but may

Aow up occasionally.

Printoff A SeK-testPage:

TOP - LeadingEdge to FirstDotRow (A4fi&)

= 3mm=/- lmm (Top Horz Border)

LEFT - LeftEdgeto FirstDotRow (Le@Vert Border)

= 5mm +/- 2mLn, (A4)

LEFT - Lefi Edgeto FirstDot Row (Leji Vert Borde)

= 6mm +/- 2- (Lti)

4-8

LJ1lP / LJ1llP - MISCELLANEOUS (Con’t)

IMAGE SKEW Max Image tolerance = 1.5mm over 259mm(10.2’~

(Ott 94) Check:

L Ispaper correctly installed in MP or LC Tray?

2. Check Medti forpaper gmizityprobleins, refer customer b Paper Spec’s Guide 5002-1801.

3. Is media cut square?

4. Worn MP or LC Picbup roller.

5. Replace Separation Pad

6. Replace W RoUer.

Customer printing BOTE SIDESof thePage or

‘fbis modelof LaserJetis a SIMPLEXprinterandis not designedfor Duplexprinting.Althoughthisprinter

DUP~X printig? ~S canptintonbotb aides,thiaprati”ce is not supported

may causepaper jams, paper

feedingor print quality

by ~. ForthegeneralHP statementon “L)uplex

printing v Simplex” pleasereferenceHPReference

problems. Guide(GreenBook) section3.

@JLU?AIIP- Feb 95)

CustomerREFEEDINGpaper,

nottwo sidedpfiting?

Aa abovereferto HP generalstatementon “hplex

printing v Simplex” in W ReferenceGuide(Green

(L~lP~LP - Feb 95) Book) section3.

PAPER JAMS/MEFEEDS/ Interleaving, where a variety ofpaper is placed in the S~G causedby customerspracticeof ~ERLEAVING ~erent

typesof papermpapertrays?

paper tray, is not recommended by HP. This practiceis

likelyto leadto Paperjams& Miafeeds.For tbe general HP statementon ‘!ZnterleavbzgPaper” pleasereference ~ ReferenceGuide(GreenBook) section3.

(LJIIPLIIIP - Feb 95)

4-9

LJ1lP / LJl~lP -’PR~T QU@ITY PROBLEMS

RepetitiveMARKS appearing onpage atre@ar interv~ see tableopposite.

THIN VERTIC& BLACK LINES?

(Ott 94)

HorizontalBLACK LMS?

BLACK BANDS appear acrosspage,approx.3.7 rnches apart,around0.5 rncheswide. May appearwhilstprintingtie fist fm pagesfier standing idlefor awtie. (Updatd)

WHITE BANDSdownthe page.

(Heiiier Waite - Glasgow)

(New Info)

BLANK PAGE? Occurswith bothSeK-Testandcustomers

print fles. (New Info)

flan tigstafi- B’ham)

@m)

1. 94mm (3. 7inches) apart (EP Drum Defeci).

2. 63mm (2.48inches) apart (Upper Fuser Roller)

3. 54mm (2.13iuches) apart (Lower Fuser Rollefl

4. 52mm (2.05inches) apart (Transfer Roller) 6, 51mm (2.Olinckes) apart @eveloping Rolled

7. 49mm (1.93inches) apart (~ Feed Rollers)

8. 38mm (1.5bzches) apart (Charging Rollw)

1. Toner Drum scratched, replaced

2. Scratche@cores on Fusing Rollers.

1. Check Fibre Optics cable, maybe assoicated with

Error 41 or 51.

2. Replaced DC Controller.

1. Replace EP Cartridg&

2. Checkfor direct sunlight, doesit occuratone

parti- timeof day?

I ThelasershutterhadbecorneaWandwasblocking

tie laserbeam. Replace lowercoverassy Pm RGI-1773-OOOCN.

No imageonEP DromandPrintEnginetestwasfound to be working.Replacing the Formatter PCA resolved

this problem.

BLANK PAGE?

(Ott 94)

BLACK PAGES?

(Ott 94)

1. Seal tape left in Toner Cartridge

2. Empty Toner Cartridge

3. Replace Toner Cartridge Interlock Tab.

4. Replace Transfer Roller.

5. Replace ~S.

6. Replace DC Controller.

1. Replace wkh HP Toner Cartridges

2. Replace HV Contact Assy.

3. Replace Fibre Optics cabl~

4. Replace HVPS.

5. Replace DC Controller PCA.

4-11

LJ1lP / LJ1llP - PRINT OUALITY PROBLEMS (Con’t)

BLACK Pagmtith someTkin Horizontal~ LINES? This~ alsogiveERROR 51

(Ott 94)

Damagedor severedFibreOpticscable.Replace the

Fibre Optics cable

FAINT PRINT?

[Ott94)

BACKGROUND?

(Ott 94)

1. Density Slide set to LHS, move b middle position.

2. EP Ca~”dge empty?

3. Replase Transf& Roller.

4. Replace ~S.

5. Replace DC Controller ~

6. Media out of spec, refer to 5002-1801 Paper Speck Guid&,

1. Replaee EP Cartridge, ~ Toner Cart’s used?

2. Media out of spec, r~o to 5002-1801 Paper Spec’s Guide

3. Clean or replace Transfer Roller.

4. Print Density may need a~usting.

5. Inside ofpn.nter dirty, clean.

I COMPRESSED PRINT, / SometitnesEPTonerCartridge“freezes’wkiclr \

maybecoqresaed on any makesthegearextremelyhardto turn.Tkeskfi on partof thepage.Itmaylook theDrumdrivegearcontinuesto turnfora short liketextcompressedrntoa timeeventhoughtkerestof theptiter ia “thin line” or gaps between fietioning. Theredt is thatthedrumahafiturns lines. andthedrumdrivegeardoesnot.The softerplasdc

of thedrumtie geargives,eventhoughit is “keyed”.

P~RG1-1777-OOOCN

refer to 5002-1801 Paper Spec’s

UGE SH.EW?

(Ott 94)

Repace drum dtive gear

1. Is paper loaded correctly?

2. Media out of spec, Guide

3. Wmn LC orMP Pick-up roller.

4. Replace Separ@.on Pd

5. Replace L!PRoller.

REGISTRATION problems?

(Ott94)

1. Check MP or LC Paper Tr~s are not overloaded

2. Paper Guides on MP Tray or Envelope Tray adjusted too tight

3. Media out of spec, refm to 5002-1801 Paper Spec’s Guide

4. If 1st dot row is NOT 3mm +\-lmmfiom leading

edge ofpage, then a~ust VR201 Regpot on DC

ControUer ~

5. Check for worn or damaged Drive Gears.

6. Replace W Paper Sensor PSI.

NOTE For Re&tration Check see Miscellaneous section or Service Manual seti”on 4.

4-12

LJ1lP / LJ1llP - PRINT OUALITY PROBLEMS (Con’t)

W~ED PAPER ~d/01

PRINT SMUDGED onlower

partofprintedpage.

NOT FUSINGcorrectly and

PRJNT SMEARED down RHS ofpage. Typicallya

bandof approx.25mmdown

RHSof page

CharacterVOIDS / Poor

FUSING (Ott 94) See “Character Void”statement in HP LaserJet Reference Guide 3. Replace Transfer Roller. (Green Boo@for more detail.

33471A PaperCREAS~G

mayoccm on~ aswell.

MISSING PRINT? Approx

13/14mm ofprintwasmissing off thetrailingedgeof thepage whenveiwedmportraitmode.

(Steve Obia - Billeric~)

flew Info) @JZIIP)

Replace fuser assembly.

“U ShapedbracketonpressureFuserRolleron

LHS of printer(asviewedbornthefront)fails

andbreaka.Thisallowslessfiser “nip”on

FuserRollersonLHS. Seenextitembelow for more

detail.Rqlace Fuser Assy or “U” shaped bracket,

Part Number RAI-7587-OOOCN

I. Bad Transparencies, bond, laid or linen paper.

2. Paper is out of spec, r~m to 5002-1801 Paper Spec’s Guide

4. Replace Fusing Assy.

BushinFuserAsaybreaka(Item7 Fig 8-8), thiscauses lesstiictionbetweenpressureandfiser rollersonthat sideof fiser, causing creasing.It mayalsocause smud~g ontheRHS of tie page.Rqlace Fuser Assy

or “U” shaped bracket, Pm RA1- 7587-OOOCN

Replacing the Feeder Assy, which includes PS1 sensor

resolved this problem. As tkissensorwasatfadt itis

notclearlyunderstoodwhyno PaperJamsoccnred?? ThisfeederAaayislocatedbythe SeparationPad housing.

LJ131PJMAGE MOVES DOWN page by Approx. 3 inches. Thisproblemcan occurwhenPacific Page

Postsmiptplug-in cartridges

areusedwiththisprinter. PrinterOKinPCLmode.

~ewInfo)

Theproblemhasbeenidentied downto theNVRAM pagecountof theLJTIfPcausedby thePacKcPage PS Cartridge.~ page counterdoesnotrncrement usingthisPS cartridge.It seemswhenthecounter reaches2047, for somereasonthePS Cartbelieves ithasaLegalpapersizeinstalled.Thisiswhyprint imagemovesdownthepage. CE’Shavein thepast replaced both Formatter and DC Controller PCA’S)thiswill fIXmtherJIort butwill failagarnwhenthepagecounterreaches

2047.

This is NOT a HPproblem, the customer MUST contact Pacijic Pag&

A temporaryworkaroundis

1.Resetpage counter to zero via Servtie Mode,

remove Paci@ Page PS cartridge to do this.

2. Use HP PS cart 33439Q or C2089A(LJIHP on~) TkiaproblemAodd be resolvedby now,butmay

ahowup occasionally.

4-13

teq

LJ1lP / LJ1llP - PRINI

)UALITY PROBLEMS (Con’t)

Text looks BOLDER m a banddownRHS of page. Thisbandis approx,25mm wide andm itsworstcase mayappearalsowith aband of Bsndground.A bandDISy rdsoappeardow LHS of page.

(Updated)

TOPS & BOTTOMS of charactersclipped.Thisoccurs eve~ 19mmdow.rrthepage.

(Ron Wallace - Manches$w)

mew Info)

Print “CRACKING” when paperis folded.Whitelines maybe seennuudngthrough

characterswherepageis folded.

(Update@

Normallystrong sunlight causesthis problem. Positionprinterwell awayfromthistidow, etc.

~ooommooooooooo

DDDDDDDDDDDDDDDDDDDDDDDD

_Q~QQQQQQQQQQQ

HHHHHHHHHHHHHHHHHHHHHHHH DDDDDDDDDDDDDDDDDDDDDDDD Cccccccccccccccccccccccccc uuuuuuuuL

uuUuuuu!uuTuuu

page

TLriaprobleminitiallylookslikearepetitiveroller

problem.Replacing the Formatter

PCA resolved this

problem.

Tonercomprisesof pigmentedplasticmaterialand ironoxide.Whensubjectedtohightemperatures thesein~duai plasticparticlesbecomepartof a largerplasticimageon thepage.Whenthepageis foldedtheplasticmustme m someway.If theprint iIDSgek well set

rntothe paper, theresukingbreak

intheplasticwill NOT be very apparent. However, ifthetonerhasNOTbeenabletopenetratethepaper fibre~the “Crack” in the plastic image ~ be amp~ed. A whiteline will be seenthroughimage. To ~e

1. Ensure paper meets ALL Paper Specs, see guide

5002-1801. In pahularpay attention to the smoothness (1 OO-25OShefieU) and/or “W& Bd ~11 Dennison)

2. A tighter Density setting will ensure less toner

used, thusminimizing problem.

3. A lighter chara- stroke may also help. Note: See HP LaserJetRe&ence Guide,section4,

“CrackingUp” page 4-1l(rtision RCO 4.01)

4-14

LJ1lP / LJ1llP - PRINT OUALITY PROBLEMS (Con’t)

THIN LINE Down page,

aPProx50mmborn RH edge of page? (LJIIP)

(La OReilly - Dublin - Feb 95)

Thispbrn was resolved by replacing the Formatter

PCA At firstsightthispbm doesnot look likea

Formatterfauk.To helpyou diagnosethisremove

FormatterPCA completelyanduseEngineTeat to ascertainif pbm is stillapparent.Eventkougbthereis

no displaythe “tramlines”shotid print.

4-15

LJ1lP / LJ1llP - PATti PATH PROBLEMS

ERROR 13 PSI sensorlocatedby SeparationPadwas installed

@ermanentat power on) incorrectlyby CE. Thesenmrfig hadbeeninstalled

thewrong sideof thero~ermthisarea,therefore permanen~ activated.Repositin PSI jlag.

ERROR 13 Feedspaperm approx..2.5”, leadingedge stopslevelwith PrimaryCoronaRollerthen Error 13.

PermanentERROR 13 afier ’05’ is displayed.

Solid ERROR 13whenfeding

fromeithertheMP Trayor tie

Optional PaperCassette.

(New

Info)

ERROR 13 astrailingedgeof paperisinthe EP Drumarea.

(Steve Clarke - UK)

(NewInfo)

{LJIIP)

ERROR 13 Paper Jam whenfeedingfrom MP Tray.

(Note printermaybenew)

Gearm centreof ‘tiput feed roller”had come am of theshaft,so providingno driveto rubberrollersmountedon it.(RGl-1778-OOOCN)

Reinstall this gear in its correctpositin.

PSI Sensorarmhadbeeninstalledon tie incorrect sideof J/PFeedRollers,leavingflag to permanency activatesensor.(BEWARE).Install PSI flag in h

correctpositin, checkjlag spring.

Paperisjust aboutto entertheFuserAssywhen this paperjamoccurs. Thisoccurseve~ time.Replacing L PSI input sensorresolved this problem,

2. Small spring on PSljlag has come of$

Replacing assy that contains PSI sensor resolved this problem. This sensorPS1is locatedby the

SeparationPadhousing.

Ref. SERVICEMANUAL Fig.8.2(paperpathdoor item4 (-paper guides).Oneendof thisguideis ptioted, buthad slippedoff bar causingjams. Simply gainaccessto tis guideby removingpick-uproller andtransferroller.Remove screw which ko~s kern 4

to item 7. Re-pivot item 4.

33471A PaperCREASING

mayoccur on LJIllP.

SKEWING attie top of the

page,restof pagelooks OK

BushmFuserAssybreaks(Item7 Fig 8-8), this

causeslessfrictionbetweenpressureandfiser rollers ontkatsideof fuser,causingcreasrng.Itmay also causesmudgingon theLHS of thepage.Replace the

FuserAsW or “U” shaped bracket (P~RAI-7578-

000CN).

FrontDoor hingeloose on LHS,thereforelessfiction onthissidecomparedto RHS,thusskewingattop of pageapprox.2rmu.Correctprobti or

rephce front

door assy.

417

LJ1lP / LJ1llP - PATH PATH PROBLEMSlC_on3

REGISTRATION CHECK Priutoff A Self-testPage

See Page section4 m Service

Manual for RegistrationAdj. LEFT - Lefi Edgeto FirstDotRow (tifi Vert Border)

(Ott 94) LEFT - Le%Edgeto FirstDotRow (Le@Vert Border)

IMAGE SKEW MaxImage tolerance = 1.5mm over 259mm(I0.2’~

(Ott 94)

Customer printing BOTH Tbiamodelof LaserJetis a SIMPLEXprinterandis SIDESof tkePage or not designedforDuplexpriuting.Altiougk thisprinter DUPLEXprinting? ‘ThiS may causepaper jams, paper feedingor print quali~ printing v Simplex” pleasereferenceHPRefwence problems. Ouide(GreenBook) section3.

@~~P - Feb 95)

CustomerREFEED~G

nottwo aidedprinting? printing v Simplex” in HP ReferenceGuide(Oreen

~P4~- Feb 95) Book) section3.

PAPER JAMS/MJSFEEDS/ Interleaving, where a variety ofpaper &placed in the SKEWING causedby paper tray, is not recommended by 33ZJ.This practiceis customerspracticeof likelyto leadto Paperjams& Miafeeds.Fortie general INTERLEA~G ~went ~es of papermpapertrays?

(ZJZLP..ZLZP- Feb 95)

paper, As above refer to HP generalstatement on “&plex

TOP - LeadingEdge to FirstDot Row (A4Z@)

= 3mm=/- lrum,(Top HorzBorder)

= 5mm +/- 2mm (A4)

= 6mm +1-2mm (Lti)

Check:

1. Ispaper correctly tistalled in MP Tray?

2. Check Media forpaper quhrityprobiems, refer customer to Paper Spec’s Guide 5002-1801.

3. Is medti cut square?

canprinton botb sides,this practice is not suppotied byHP. ForthegeneralHP statementon “fiplex

HP statementon ‘interleaving Paper” pleasereference HPRekrence Guide(OreenBook) section3.

tillP~Jlllp - :OPT16NM FW~k’ TUY’RROB~EM~’

UNABLETO RECOGNISE Check connectorJ901 onlowertrayPCA. CarefuUy

Lower OptionalTray?

Solid ERROR 13 whenfeetig Paperk~st aboutto entertheFuaerAasywhenti

fromeitkertheMF Trayor tie paperjamoccurs. Tkisoccurs everytime.Replacing

OptionalPaperCassette. PSI input sensor resolved this problem.

@ew Info)

,’, ,,, .

resolder if necessary

4-18

or replace this PCA.

L311P / LJ1llP - POSTSGR~T PROBLEMS

PS BUSY whenusingHP PostscriptCartridge (HP 33439P).A continuous“PS BUSY” condition

if ‘lAuT@CO~ is

can occur

andthe documentis longertha

1to 2pages.Mthepageis printeditmayreti m missing lines,Wed text, malfomed letters.Fatitypagewillbe

ejectedandError will be d~layed.

33481A LJffCPwithPostscriptinstalled recognisesprinter as a L~ (512Kb)?

(Updated)

L~ IMAGE MOVES DOWN page by Approx. 3 inches. Thisproblemcan occurwhenPacific Page

Postscriptplug-in cartridges

areusedwiththisprinter.

PrinterOKm PCLmode.

(NewInfo)

Thisa similarproblemto theInterrnittmtError41, causedby staticdischargefrom&ser as~. PS can not reportError41, insteadit displaysPSBUSY.

Install dwde in fuser assy (Cheapm) or replace

fuser assy (Expensive). See service note33471A-02B

A 33439Pmostprobablywillbe rnstrdle~a

LJHIP

requires the Postscript cartridge 33439Q. A LJHIP can also use tie C2089A Switchable PS Cam”dge See Postscriptcompatibilitymatrixm section 1 of this

book.

Theproblemhasbeenidenthieddownto theNVRAM

page countof theL3’fLIPcausedbythePacifcPage

PS Car&ridge.Thispage counterdoesnot increment usingthisPS cartridge.Itseemswhenthecounter reaches2047,for somereasonthePS Cartbelieves ithas a Legalpapersize installed.Thisis why print imagemovesdownthepage. CE’Shavein the past replaced both Formatter and DC Controller PCA’S, thisW fi inthe shorttq butwillfail agti whenthepagecounterreaches

2047.

Thisis NOT a HPproblem, the customer

MUST

contact Pmific Page

A tempo~ workaroundk.

1. Resetpage counter to zero via Service Mode,

remove Pacific Page PS cavtridge to do this.

2. Use HP PS cart 33439Q or C2089A(LJIHP only) This problemshotid be resolvedby now, but may

showup occasionm.

LJIILP~GE MOVES

DOWN page by Approx. 3 inches. Thisproblemcan

occurwhen Pacific Page

Postscnptplug-in cati”dges areusedwiththisprinter.

PrinterOKm PCL mode.

(NewInfo)

Theproblemhasbeenidentifieddow to the~

pagecountof theLJTffPcausedby thePacifcPage

PS Cartridge.Thispagecounterdoesnot increment

usingthisPScartridge.It seemswhenthecounter reaches2047,for somereasonthePS Cartbelieves ithas a Legalpapersizeinstalled.Thisis why print imagemoves downthepage. CE’Shave in the past replaced both Formatter and DC Controller PCA’S, Ws willfix in the shortte~

4-19

LJ1lP / LJ1llP - POSTS( UPT PROBLEMS (Con’t)

(Conl)

but will fiil againwhenthepagecounterreaches

2047.

This is NOT a HPproblem, the customer WST

contict Pacz~c Page or Dealer.

A tempor~ workaroundis

1. Resetpage counter to zero vin Service Mode,

remove Paci~c Page PS ca~”dge to do this.

2. Use HP PS art 33439Q or C2089A(LJIIP on~)

This problemshotid be resolvedby now, but may

showup occasionally.

4-20

Classic Printers

LaserJet 2000

2684M!

How to use this Section:

The faults are sub-divided into the following four categories

1) Faults with ErrorNumbers

2) Miscellaneous Faults, Le.frontpanelhangs, pages out of sequent, et{

3) Print Qual@Probleins

4) Paperpath Problems, Le.paperjams (surprise, surprise,

this is the biggest section)

PLEASENO~

Whenlookingfor 13.X PaperJsrnspleasereferto paperpathsection, asallof these ~es of errorsappearthere.

5-2

JUMBO.IETF~URES (REALONES}WITH SOLUTIONS...

ThefaultscontainedinthissectionareALL realfaultthathaveactuallyoccuredinthe

field.ThisbookletwillhelppreventotherCESgoingthroughthesamelogicaltroubleshoot-

ingpath,thussavingtimeandincreasingefficiency.

NotethisisNOT areplacementforthe2684TROUBLESHOOTINGGUIDEChapter.7 intheServiceManual,butcanbeusedinparallelto aidfaultlocation.

PleasenoteallpagereferencesarefortheNEWSERVICEMANUAL(02684-90903).

LIST of SERVICE NOTES up to Jan 91

HerearetheServiceNoteswhichhavebeenreleasedontheJumbotodate

2684-1 Centronics 1/0 data loss

-2 PDXUnit Improvements

-3 Drum Damage Service Hints

-4 SwitchbackService Hints

-5 Duplex UnitImprovements

-6AFuserAssemblyImprovements

-7 Switchback UnitImprovements

-8 Drive chain andgear wear

-9 Out offocus laser

-l OSwitchback -Friction /Positive dn”ves

-11 Font CartridgeMagaine mod

-12Front PanelK~ CapReplacement

-13 DuplaHolding TrayLED

-14A Toner WasteLED

failures

Hereis alistofitemswhichyoushouldalsohaveavailable whengoing onsite:

SERVICEMANUAL...............

PAPERSPECIFICATIONGUIDE....5954-8953

REAMof standardwhiteLaserQualityphoto-copimpaper.(Xerox80premier has always

worked well with theseprinters)

Orderup severalcopiesof thepaperspecguidefortheoffice andgiveacopy to customerswithpaperproblerns.Remembertoalways teti out theprinter withstan&nf white Xerox 80photo-copierpaper wheneverthecustomer’spaperis suspected.

Otherdocumentation:

0PER4TORSMANUAL ............02684-90901

TECHNICALREFERENCE..... ...02684-90904

;;

02684-90903 (2ndeditioncomplete)

5-3

Please Note thtiallPaperJams or Error 13.xproblems, refer to the Paper Path part of

this section of this mariual

10.1PRINTERDOOROPEN (whendoor areactuallyclosed) WhenopeningLH doorget Error62.

10.2OUTPUTDOOROPEN

11.3ADD PAPER - topaper

Deck

UsingPDXTray,13.1Paper Jams,oftenpreceededwith

25.3~SPRINT. Failure OCCUrSwhenPDXrunsout of paperof thedooris open.

TheDCControllerPCAhadbeenreplaced,connectors J-124on theDC CtlrPCA and J902B on the DFD

PCA had been reversed. BEWAR.Ethis6 easily done.

Microswitch bracket bent at rear of the switchback

FeederAssy (i.e. opendooron LHStorevealfuser rollers).Themicroswitchinquestionisontop towards theback(or on the left of theswitchback,lookinginto thefuserarea).SeeservicenoteonSWITCH-BACK UNITIMPROVEMENTS(2684-4),thisadvisestoorde adoorguide~/n RAI-7035-OOOCN).

1. Invalidpaperstie selected on PDDUd@ switches.

The onlyvalidsizesare

LETTER-SW3 I (UP) A4 -SW3 O(DOWN)

SW41 (UP) SW41 (UP)

2. DCPS1 in the ,PDXwas tr~ping when the tray

ll~ed to its working height

(The buttonwaspoppingup). The cause

wasafadty PDXDRIVERPCA (alsoknown asaDeck UnitControlPCA).

SwitchesSwl-5 &Swl-6on thePD-Decontroller PCA arele@ in the UP(Active)position. These

switchesazeusedtolocateDuplexjams(page7-59) andshodd be norrnaJlyDOWN (OFF).

ERROR25.3 - ~SPRINT

(Intermiaen#

ERROR51-BEAM DETECT

DETECTMALFUNC~ON onpower-up

ERROR51-BEAM DETE~MALFUNC~ON

(Intermitten~

Customerusingpaperwithperforations.The

perforationareawasthickerthantherestof

thepaperand falselyreportedamisprint.

Hastheprinterjust been installedafierhavingbeing moved from a coldenvironment?If yes,wait30

minutes forpn”nter to warm up and try again.

1.Foldback mirror out of adjustment Perform

adjustmentas perthe ServiceManualpage6B-28.

2.Fokiback mirror had slipped out of adjustment

due to one of 2 metaVrubber discs moving out of

position. These disc aregluedontothethemirror

mount(item52,Fig 8A-04,P8A-18) oneisunderthe

adjustmentscrew,theother(lowerone)actsasa(Con’t)

5-5

..”- . . .Wu. “ ,. . . . . M.u.u.. ,. U..IBUL- , Q“n *

(Con’t) backstopforthemirrormount.Thefix inthiscasewas

tore-gluethelowerdiscinthecorrectposition.UseRF PROBE(34301A) withDVM to adj, seeinstructions foritsuseinAppendixB-1 attheendof thissection.It

hasfound by qenence replacing theFoldback Mir rormount assyprovides the long term% as glua”ng rubber dies’s have notproved to be to successfu~

ERROR53 -OVERTEMP? Theprobiem was caused by a Defe@”veFM5fm.

Afterprinterisswitchedoffthen onagain.Severalpageswillbe

ThisfanblowsairtheoughthePrimaryCoronainorder to keepwiresfreehorncontamination.Also if thisfanis

printedbefore thiserroroccurs. inoperativehotairwillNOTbepulledhornfoldback

mirror(viathelasertunnel)and laserunit.Thiscauses

@ewZnfi)

the lasertooverheat.Thisfanisaccessedfromthefront

of theprinterbehindthelargeblackplasticguardbelow

&or.

ERROR 54-DRUMMOTOR Faulty MOTORDRIVERPCA.

MALFUNCTION

ERROR 56- ImageCounter

FwkyDCCONTROLLERPCA.

Malfunction

Will not pick-up fromPaper Replacing thePDDUPCA resolvedtkispbm The TraysorPDX, alsoIntermit trickherewastodisconnectthePDX & Duplexunits

ERROR57 (DuplexCounter)

(Graham Jones - B%am)

fromtheprintengine,Nowtry again,will itpickpaper frompapercassettetrays?

(Ott 94)

ERROR58 OR UNIT FAXLURE.my OCCWS whenpapermovesfroma I/Ptray.StackerO/Ptray

jammedatthetopof its

travel,only2.5cm of textis printed.

ERROR 60- PrinterAC power LineUNSTABLE.

ERROR62 whenopeningLH sidedoor. 10.1Pfiter Door Openmessagewasfirsttoappea eventhoughdoor wasactually closed.

Worn shank on brass gear bearing on the nearside

lifterassy drive shafi

item26 Fig8b-8,page8b-15

(p/nRS1-O078-OOOCN),causingstackertraytoseize. Thismeantthatthetraycodd notinitialiseby dropping therequired1/2inch.

L JI09 connector on DECONTROLLER PCA

not connected

2.Faulty DCPSI (See Fig 9-1,p 9-3for location.

3.FaultySLAVECPUPCARG1-0513-040CN.

TheDC ControllerPCAhadbeenreplacedand

connemr J-124 on tie DC CtlrPCA and J902B on DFDPCA hadbeen reversed BEWAREthisiseasily

mistakenlydone.

5-6

ERROR70 - SystemFault

(06FF) (Intermittm~

ERROR70 (160~ intermittent?

@ewInfo)

Fau@FOMTTERPCA.

TheFormatterPowerSupply+5vwasfoundtomeasure

4.5v, ThisDC Voltige was reajustedto +5v and

prob&m didnotrem. NOTE:anyproblemsinthe

Formatterareaitisalwaysworthwhilecheckingthis

voltage.

ERROR74 - LocalRAM Malfunction(Itiwitten$

ERROR79 whendotioading Macro’s.

(H Thorsagan- Norway)

Fau@FO~TTERP&

UsingNon-HPmemory chips

5-7

Self-TestHANG,no errorsor PaperJamreported.

PtinterwasinCEMODEandhencedidnotreportan Error50 (or eke theCEdidnotseethe messagefish

upasCEmodetriedto overridetheerrorcon~lon).

DO NOTLEAVE~ “CEMODE “.

Dfictiesobtaining LASER POWER Aer LaserUnithas

beenreplaced.

InDuple&PAGE ~ERINGNOT SEQUENTIAL, i.e.page 1on one side,page20 ontheother.

INDupleX PAGE NUMBER~GNOTSEQUENTIAL, i.e.page3 on one side,page 6 ontheother(Factorof 3 page differmce?) A Blanksheetis alwaysbe a be inVertPass tier printjob is completed.

NOERRORMESSAGE’S. ThreePaperJam LED’s inthe DUPLEXERstayon all thetime. [atinstallation)

“TICKING” noisecoming

fromSta*er Power Supply

area.CancauseDuplexj~

Erraticmovementof Stacker

O/p Tray,LEDGonLHS of OperatorsFrontPanelcanticke

I. ForLaserPowerAdjus fment @ 6B-26), tutu on

DSW941-7 (Readykiller)BEFOREDSW941-2

(Laser-on)toavoidBeamfd.

2. Reconnectall plugs and switchon (NOT inCE mode)to see Zythere are any errors other than

51-Beam Detect Failure. A scannermotor failure

for instancewilloverridetheREADYKILLERand

preventhelaserturningon.

Fau@CENTRONIGINTERFACEP~

Faulty Double FeedDetectAssy, either requires

adjustment or repbcement This faultiscausedby

theDFDassyallowing2 sheetsof papertiough EPArea(la Pass)sbmdtaueously.Thisendsupinthe Duplex Holdingtrayundetected,tkus-g thispbm Frontsheetwhencomparedto rearofsamesheetwill

haveafactorof 3 pagenumbersWerence.

Dip switches on PDDUControllerPCA had been

lefi in factoryposition - SW1 & 2 onpage 6H-13 were ONinsteadof OFF.

Replace StackerPowerSupp~.

POORFOCUS,BLURRED PRINT,ie. characterfl-rn on “e,qa,b, ~o,q” etc. Bold

fonts haveblurred edges.SeK-

Testbox 7 may appearlight. Heavyskadowsaround characters.

Faul@LaserAssembly. (assumeHVandLaser adjustmentshave been carriedout). Replacelaseruni aspm ServiceNote2684-9.

5-9

““m- .T..”buuum, , m““ 0, -“U L

IntermittentDARK2 rnchWide

BANDOF Toner mLaser Scandirection.Occursevery 20-50pages,edgesof band are

bl~and extendsacrossthe

entirekmgthofh

STREAKY BACKGROUND

Faintlinesacrosspage, approx

1/2mmapart.Theselinesappear

in~ direetioqbutarenot

stmighthes. Theyareslighty unevenandlooksvqmuchlike background.

HORIZONTAL Displacement LH PARTS OF ALL CHARACTERS (LANDSCflE MODE). Charsareclearlyformed(i.e.NOT @)but havedifictiveLH tails(ii thiseasea row atthe

topandbotto% andoneininthe

rniddIe).SeeExampleopposite.

Fau@ POTENTL4L CONTROL PCA. The ‘ES

LOOP’’wasnumingoutofcontrolcauaiugthe

-Corona aentto rncreaseuntilitbegsntoarc. ~ SetSW1onthemodeselectswitches(P6C33) to

OFF(right). This setsthePrimaryCoronacontrolto NON-AUTOMATI~ mode,which keeps the current fiedat theti(V&rktarget)value.

1. Worn/di@ cleaner blade - reverse edge or replace

2.Replace Cleaner Stition Assy.

Faul@ SC~ER MOTOR asstvnbly.

e.g.

<\~QJq

1Paper

~Movenzent

Direction

JAM JNDICATOR AND PS4LEDo%accompanied

by either

* 13.1PRINTJAM( SIMP)

Faulty DCPS1 in the print engine. This symptom ocmwhmthe 24v fds sndhencesensors/countersetc

WiJlbecomernoperativeandgivefalaereadings.Check

the24v comingrntotheDC CTLRPCAat J1OI,pin2; * 13.3DUPLEXJAM(DUF) this comesdirectfromthepowersupplyandif low the] * 56-MAJNCOUNTER DCPS1shodd bereplaced.(RememberPS4LED

MALFUNCTION

correspondsto thesensorabovethe PDX, andbekind

Iowercassetteholder).

Will not pick-upfiomPaper TraysorPDX,alsoIntermit

ERROR 57(Duplex Counter)

(Graham Jones - B ‘ham)

Replaang the PDDUPCA resolved this pbin. The

txickherewastodisconneathePDX&Duplex~sfiorr theprintengine.NowtVa~ willitpickpaperfiom papercassettetrays?

(Ott 94)

5-1o

2684- MISCELLANEOUS Problems (Con’t)

Atpower displays’05‘asno@

doesnot Display‘W~G

UP’,butjurnpsto’00READY’?

Mer Completingwarmupwith

incorrectdisplsy,printerworks fine.Jfdoorsareopened(except frontdoors)thereisNOdoor OPENmessage.Also if PJ occurs,noPJmessageis displayedthougkorangePJligkt

~es.AlsoifMISP~

occursno25.xmessageappears, thoughpaperdoesappearrn ErrorTray.

(PaulKroon - Holland)

HANGSON-LINEin

D~LE~nopaperrnhokiing tray,largegreenhobinDuplex

continuouslytuming.Last

pagesonstackerhaspage

numbtig outof sequence.

ERRATIC movementof

O& STACKERTray. LHjamLED(stacker)on indicatordisplayfiketig. DUPLEXJAMS(aspaper

mtersduplexfiomtier).

“TIC~G noisefrom

STACKERPOWER

SUPPLY.

ReplaceEnginePCA.

Double Feed hd ouured in Duplex. Dropholdingtra~

&force2pagestiougktheupperandlower separation rollers.Ifthiscanbeea~ ackieve~theserollersarewon

andShoddbeadj’edorreplaced.

FaukyStackerPowerSupply(+24v).V@by monitoringthe+24vrailontheStackerControlPCA (TP103).If~plyisfkukythenthevoltagewilldip to 15-2lvwhenseK-testisinitiate~dthoughfican measure+24vwhmtieprinterisidle.

FUSERTOWELrunning outafter 20-30K pages

(220-240v)

Onpowero% AC Marns

CircuitBreakerTTUPS OUT(notprintercb).

A IOK10watt resister (item 80, Fig8a-03,page8a-10)

in parallel with fusing towel motor as~ had gone O/C, causingthemotortorunfist.Thisresistorkshown

ontheBASICPRINTENGINEdiagrampage9-3, middleleftof AC Ner PCA.

10K ohm 10 watt resistor for Fuser Towel motor was shoti”ng down to eatih. ~ resistorisinparallel

w%hTowelMotor.

5-11

. . ------- . . .-- w”. . . . . . . . . . ,

-“., .

-“u .x

MfSPRINTS & multiple copies

ofthesameprintedpages appearsmtheO/Ptxay.ONLY

TwoakeetsofA3paperfeedingaimukaneouslyfiom Duplexhokiingtray.Adjustor replaeSeparation rollers.

withA3paper.

OnPoweron, goestoReady asno~ thenjumps to

CEnoted5VonFormatterPowerSupplymeasured

4.7v, readjusted to 5v~dproblein.

“05 Self-Test”?

Print“cR.4cfuNG” when Tonermmpriaesofpigmentedplaaticmaterialandiron paperisfolded.White lines oxide.Whensobjectedtohightemperaturesthese maybeseenmnningtkrougb iudividtiplasticparticlesbecomepartofalargerplastic characterswkerepageis imageonthepage.Whenthepageisfoldedtheplatic folded. mustgiveinsomeway.Iftheprintimageiswellsetrntoth

paper,thereaultingbreakiutheplaaticwillNOTbevery apparent.However,ifthetonerhasNOTbeenableto penetratethepapertibre$tie “Crwk” in thepkstic

image will be amplz~d A white line w“ll be seen through image

To~ L Ensurepaper meets ALL Paper Specs, see guide

5002-1801. In patiularpay atintion to the smoothness (100-250 Shef@ld) an~or “Wax ~“ ~11 Dennison)

2. A lighter Density setting will ensure less toner, thus mininrising theproblem.

3. A lighter character stroke may also help

le i’

Self-TestwillNOT run from Checkiflowertrayisa “SECURESOURCE” LowerPaperTray.

LEADfNG EDGEof Paper

hastoner SMUDGE,mostly

Turn OFF secure source via fiontpane.?

Iftheleadingedgewasobaervedclosely,fiomtherearof

printertowardsthefiont,thepaperhadpickeduptoner.

ontherearsideofpage.Also ~tonersmudge appearedmairdyontherearsideof

imageisSKEWED.

@ew Info)

@anMartin,B’ti, Jun 94)

pageandgraduallygetworsetowardstherearofthe printer.AlaotheimageisSkewedcomparedtothe leadingedge of thepaper.Thisproblem was resolved by

adjusting BLOCKS on item 66, page 8a-14, Fig 8a-4.

Inthis casetherearblockwasajustedtorescdveboththe

TonerSmudgeandSkewproblems

CustomerRE~EDING paper, As abovereferto~ generalstatementon“~plex

nottwo tidedprinting? prtrzting vSirnpla” in HP RefmenceGuide(Green

Book)seetion3.

5-12

26S4- MISCELLANEOUS ProbIems{Con’t)

PAPERJAMS~FEEDS/ In&rleaving, where a vari@ ofpaper isphwd in the SKEWING causedby

cuatomerspracticeof INTERLEA~G ~ment typesofpapermpapertrays?

paper tray, is not rewmmmded by HP. This pracdcek

likelyto leadto Paperjams& Miafeeds.Forthegeneral HPstatementon “InterleavingPaper” pleasereference HPReferenceGuide(GreenBook) section3.

5-13

RepetitiveMarks on the page priutdefectsatre@distsnee apart.

1. 50mm apart (Registration Rolkrs)

2. 50mm apart (Duplex Rollers)

3. 64mm apart (Cleming Assy)

4. 100mm apart (DeveloperAssy)

5. 135mm apart (Fuser Rolled

6. 250mmapart @P Drum)

~~N’TFAINT Pm (1-15K pages) acrossentirepage.Less fiequentlyaBLACK page. isprinted.~W Printer)

PrintFADEStowardsfiont Ofprinter?

FAINTAREA’s onleading edgeof Duplex page.

(Approx l/4to 3/8 rnch

@ncan FranMand- Ha)

(Fred& Olsen-Denmar~

Fault was due to groundingproblem with HVT1

whichsupplies~SFER(tit pageproblem)and PRIMARY(blackpage)coronas.Checkthe4LED’sson HVTl; rnthiscaseD107,D106&D207were on but D206alwaysremainedoff.Thelowerlefthmdspring contactof item73 (springle@, Fig8A-03,p8A-13 wasrncorrectlypositionedto thelefi of thecoronaguide (Ioobgfiomtheback). The fiwastoremovetie springlesfsndthenrepositiontheLHspfig contactto therigktsothatitispressingagainstthecoromguide,

1. Cleaner Blade NOT SEATED propera~.

2. Print En@”nelowerpaper guide ptite (item 67 Fig 8a-4, page 8a-14) was loose due to screw

(E62) missing?

3. Check Height of Prima~ Corona wires adjust

to wrred

1. Caused bypaper rippling tier fist pagepasses

throughFuserforthelsttime.Try snothertypeof

paper.

2. Check EP Voltages & Drum Potentionals.

3. Adjust Separation/Transfer wrona m“reheight

ormoveSepiTransferCoronamountinggnidetotake coronaclosertoEPDrum.Refertopage8a-14,the

paperguideisitem67tich isattachedtotheTransfer

frameitem66byguideblocksitem69.Thereare2 gnideblocks, oneateachendoftransferfisme.To

ad~st thepaper~de, loosenscrewsateachendof theTransfertie, slidetheblockupordown sndthen retightenthescrew.Toget attherearscrew,takeoff therearcoveraadlowerTransfer/SepCoronaassy.

BEWAREifadjustedto closetotheEPDrmnpaper

jamsmayoccur.

SomeCharactersFAINTin Scandirection?~ewInfo)

BLOTCHY Backgroundall overpage?

Check Foldback Mirror a~ustment or replace mirror

mount.

Customer hadputNON-HP toner(ie Xerox) rntothe DeveloperAssembly.Look atTonercoatingonDev ~itwillappesreitherveryuneven ortihaveave~ thinwating

5-15

26S4- PRINT OUALITY PROBLEMS (Con’t\

BLACKPAGES. 1.Potential sensor was shorted to it’s mounting

(Ray Warnbold, US: 5vto PetentionalControlPCA.

PrintscompletelyBLACK Resolvedby replaciisgPotentianalSensingAsW.

PAGESwithnowhiteborders?

(F. VanGrieken,Amtralia)

flew In@,May94)

BACKGROUND,prints Varistoron PRIMARYCORONASCREENwasnot sligh@FUZ~? grounded.MPrimaryCorons (No.1)out about3rnchea

GeneralBACKGROUND all Replace Dmeloper ASW. overpage?

(Mike McGough - B%am)

plste(iiem62,iig8A-04,p8A-18 by ametalburr. A quick teatis to removetheonescrewat thefront

whichfixesthemountingplate and providesthepathto

ground(thescrewistheoneholdingm plastic item11, Fig8A-02, p 8A-8). If the blackpagesdiaap pearthenremovepotentialsenaer/plateasayandcheck for shortingburrs,fltietc.

2. DS 106onHVT1 HVPSdimornotlit,alsoLED1 &LED2 onPotentionslControlPCAnotM. This w~ uusedby DCLPS2 Power Supply, no

(7cm) sndnotethemetslprnseithersideof

handle.Theright-hsndpinshotidengageametalground tabastheCoronais phggedin. Int.biscasethemetal tabhadbeenbentandwas notcontactingtheRHprn;the

f= was simp~ to bend the tab straight

the

BLANKPAGES running Pins bent on J109 wnne~r of the DC ControUer

SELF-TEST(noexrors,no PCA. imageondrum.DC Cent PCA kad justbeenchanged).

BLANKPAGESonlyrn Graphicsmode(htus)when connectedtoanIBMPC.

WZZYMARK(5mm wide) recurringevery10.5cmm directionofpaperpath.

DOTS REPEATED every Drnm damaged (LE arcing). Enaoreall coronas,W 25cminthedirectionof paperpath(ieonceperA4/ LETTERsizesheetbutnot NEVERruntheprinterwithtltedweloperempty. inthe sameplace).Dot size is unacceptabletothe

customer/CE.

IBM PC had an old version of the PRfiVTER Driver

Foreign body had stuck onto DEVELOPER ROLLER.

anddevbmssuppliesareoperatingcorrectlyandtheEP areaisfieefiomexcesatoner betirereplacingthedrom

Seeservicenote onDR~DAMAGE SERVICE

HINTS(2684-3).

5-16

2684- PRINT OUALITYPROBLEMS (Con’t)

RecurringSMUDGEor markevery10cm.This patterncoddbe seenin developerbrush.Cleaning Developerwoddgetridof itforawhile.Repkicrng developergetsridofproblem foralittlelonger.

(Ed Rote, Uti)

In ScanDirectio~fromLH

sideprintsApprox75mmthen bkm~ thenprintsthelast 25mm.Asprintchsngestono print,theprintedtigedoesfade

Seeexsmpleopposhe.

CHAR’s BREAKING UP EVENLYACROSSTHE PAGE.Even@ dthatit printedisajumbledseriesof brokenscanlinesnmningedge to edgeofthepaper.

55mmJTTTERonlywith A3 or Ledgerpaper. Seems toappearwhenShaded areasareprinted.A smear appesrs55mmfiomthe trailingedgesndis2/3mm wide.

(Hubert Villtirs)

Theprinterwasma verywarmenvironmentand enclosedrnasmsllsrea,whhnosirmovement.This causedtonertoCLUMPonthedeveloper.Erzsun”rrg

there is adequate aiflow to dissapate the heatfied this problem.

Adjust Foldbackmirror or replace mirror mount

Fardty ENGINE INTERFACE PCA.

Replace with new Feeder guide Assy(RGI-1719-

000CN)

PrintImageMOVEDDOWN pagebyapprox15mm?This wasinthedirectionofpaper movement.@ewlrr~o)

(PeterSalesbury - Ci@ Gate)

TheCharacterFontonSelf-Tes lookWAVEY,no&y they shouldbediagonal.

CharactersCOMPRESSED& ELONGA~D, morenoticable

whentextisprintedinlsnd-

scapemode(iiPaperDirection)

(ChrisRivett)

RephceMain Motor. Thismotormusthavebeen

-g slightlytistto@etbiasymptom

CustomerhasaProportionslPlug-rnfont,similarto

perhapsa92286Ffont.Theptinter always grabs the

plug-in font rather than the normal internal font

Itwasnoticedalso,thatmthed squaresontheSeE-

Testhasnsrrowdsrkerbsudsappox4/5mmapart.These bandswerefiomfionttobackofptiter. Removableoftht EPDmmshowedtheselineswbichcouldnotberemoved by cletig. Replacing EPDrum resolvedproblem. Initiallythis problemlookslikePrintEngChainorMain Motor,soBEWARE.

5-17

26S4- PRINT OUALITY PROBLEMS (Con’t)

LEADING

hastoner SMUDGE, mostly

ontherearsideofpage.Also Thistoneremudgeappearedmainlyontheresrsideof imageisSKEWED.

@anMartin, B’ti, Jun 94)

EDGEof Paper

flew Inf@

Iftheleadiagedgewasobservedclosely,fiomtherearof printertowardsthefront,thepaperhadpickeduptoner,

pageandgraduallygetworeetowardstherearofthe printer.AlsotheimageisSkewedcomparedtothe leadingedge of thepaper.Thisproblem was resolvedly

adjtiing BLOC~ on tiem 66, page 8a-14, Fig 8a-4. Inthis casetherearblockwasajustedtoresolveboththe

TonerSmudgeandSkewproblems

BOLD lineacross middle of Thisproblemoccuredfiombothpapercassttes.

page

flm Info) to resolve thisproblem.

@ave tierden, M% May 94)

OFFSETWGE appearson Thiaonlyoccurefierlongcontrnuousptitrons.The pagetierlong printruna. customerptitliuesrnthepaperdirectionmovementand

New Info)

~iks Collins, Bristol, Mq94) Thisproblemiscausedbythernab~ of

PrintEngine Regi~ation assy was replaced

The

m exactly the eamepoeitiononthepagerepethively.

cleaningtoweltocleartheoffsetimagethat~appear on thefuserrollersduetotheimagebeingplacedrepetitively inthesameplace.Thereprobably is no solution short

of g~g c~stom~ to vary th~”rpn”nt.”ngto ensure no repd”tive lines areprinted over a long pen”od

E~thefiIlo~

1.Cleaningtoweldoesnotrequirereplacement.

2.Clesufieerrollersandapplysilicon-oil.

3.Checkforcorrectoperationoftowelassy.

thefiser assy

5-18

2684 -PAPE*ATHPROBLE~S ,

Paperjams whichoccur eithermthe DUPLEX or STACKERUNITwillalmost

certairdycause a jam in the Pm ENGINE immediatelyfierwards. What

dis meansisthat(iiyour earsare&arp)you will hear 2 ‘~ings” asthejam occurs;

firstthejam source~ tlaalrup (i.e. 13.3 DUPLEXJ~, or 13.2 OUTPUTJAM),

then the secondaryjam 13.1 PAPERJAM (i.e. printengine)will appearafew

secondslater. Thismeansthatjamsinthestacker andduplexcanbe difiicukto detect urdesssomeone is standingoverthe displaypanelatthemommt thejam occursto readthefist message. DO NOT leave in CE MODE asto doublepingwill

not occur.YOU HA~ BEENWARNED!

RemembertousetheDUPLEXTROUBLESHOOTINGHJNTSto determineifa

jam isintheDUPLEX area, i.e. setSW5 & 6 on thePD/DU CONTROLLERPCA

to “ON” match the code to theJamLocationTable to fid outwherem theDUPLEXthe

jam was detected. SeeAl attie endofthis section

a displaycode of mro indicatesjam is NOT m theDIJPL~ othetise

PAPER JAMS JNTHE

PDX PICK-UP AREA, i.e. paperskewsasitis picked. Sometimesthereis nojam buttheprintis

skewed excessivelyonthe page.

1. Oneof the silver corner tabs(mthiscasetheLHS

was tictig up. Tkiacauseda sheetof paperto tist

aroundthe raisedtabinsteadoffickirrgover it as it ispicked. To view thesetabsopenthepkstic door, insertthernter-lockandas paper risesit will atop withthe comertabsrestingon thetwo innercomers.

If these tabs are now raised they should fall@ee@ onto thepaper stack Jnthis casetheLHtabwasbrnd

rngagainstthepaperstack andhadto be bentaway.

Thesetabsarerivetedto sideplates8 & 9 m Pig 8C-

03 of the manuaL

2. RH corner tab stickingup. RemoveRHplateoud iusert a springvertic~ from top of tabto indentationbelow. The bushing returnspringfrom the

Switchbackupgrade@/n FSI-2370-OOOCN)stretched outprovidedsuitabletension.

3. Paper deck too high. Thetop sheetwastouching the beltswhichdrivethepick-uprollerswhichcaused paperto skew as

LIMIT TRAVEL adjustment on page 6H-43 to lower

paper deck

4. Paper deck too low. Thetop sheetisnot snugged

upto tie silvercomer tabsbutliesa shortdistance below. Thiscausespaperto skewroundtheRHtab.

Pe~orm UPPER LIMIT TU VEL adjustment to

raise the paper deck (Page 6-129).

5-19

itwas picked.Pe#ornr the UPPER

HP IIIP, IIP, 2000, IIID, IID Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual