All Rights Reserved.
Reproduction, adaptation, or
translation without prior written
permission is prohibited, except
as allowed under the copyright
laws.
Publication number
C8049-90920
First edition, April 2001
Warranty
The information contained in this
document is subject to change
without notice.
Hewlett-Packard makes no
warranty of any kind with respect
to this information.
HEWLETT-PACKARD
SPECIFICALLY DISCLAIMS
THE IMPLIED WARRANTY OF
MERCHANTABILITY AND
FITNESS FOR A PARTICULAR
PURPOSE.
Hewlett-Packard shall not be
liable for any direct, indirect,
incidental, consequential, or
other damage alleged in
connection with the furnishing or
use of this information.
Trademark Credits
NERGY STAR
E
®
is a U.S.
registered mark of the United
States Environmental Protection
Agency.
Microsoft
®
is a U.S. registered
trademark of Microsoft Corp.
MS-DOS
®
is a U.S. registered
trademark of Microsoft Corp.
Netscape
™
is a U.S. trademark of
Netscape Communications
Corporation.
PostScript
™
is a trademark of
Adobe Systems Incorporated
that may be registered in certain
jurisdictions.
TrueType
™
is a U.S. trademark of
Apple Computer, Inc.
Hewlett-Packard Company
11311 Chinden Boulevard
Boise, Idaho 83714 U.S.A.
500-sheet paper feeder and tray
500-sheet paper feeder and tray
500-sheet replacement tray
500-sheet replacement tray
500-sheet standard replacement tray
250-sheet standard replacement tray
C4124A
C8055A
C4125A
C8056A
C3122A
C4126A
!
!
!
!
!
!
!
!
1
!
1
!
1
!
1
!
3
!
1
!
1.
A5 size is detected as
custom size.
2.
A5 size is detected as
!
!!
!
!!
!
!
!
!
1
!
1
!
1
!
1
!
3
!
1
!
!
!
!
!
!
custom size; larger custom
sizes might be detected as
A5 size.
3.
Supports only letter, A4,
and legal sizes.
!
!
2
a
2
a
3
18 Printer descriptionEN
Page 21
Table 2. Product compatibility matrix
HP LaserJet printer series:
ProductPart number400040504100
Memory
Ethernet RJ-45 only
Ethernet RJ-45 and BNC, LocalTalk
Token Ring
10/100Base-TX
USB, LocalTalk, and Serial
Fast infrared receiver (FIR) podC4103A
EIO hard diskC2985B
Preventive maintenance kits, user
installable (consumable)
110 V kit
220 V kit
110 V kit
220 V kit
J3110A
J3111A
J4167A
J4169A
J4135A
C7851A
C7852A
C8057A
C8058A
!
!
!
!
!
!!!
!
!
!
!
!
!
!
!!
!
!
!
!
!
!
!
!
!
ENChapter 1 Printer description 19
Page 22
Identification
Model and serial numbers
The model number and printer serial number are listed on an identification label located under the
top cover on the right side of the printer. The model number is alphanumeric, such as C8049A for the
HP LaserJet 4100 printer.
The serial number contains information about the coun try of origin, the revision level, the production
code, and production number of the printer. An example of a serial num ber is USBB123456.
The label also contains power rating and regulatory information as shown in figure 1.
Figure 1.Sample label
20 Printer descriptionEN
Page 23
Site requirements
The following en vir onmental specificat ions must be mainta ined to ensure the co rrect oper ation of the
printer. Consider the following points before installing the printer:
Install in a well-ventilated, dust-free area.
!
Install on a hard, flat, continuous surf ace , with all f our printer feet level. Do not install on carpet or
!
other soft surfaces.
Ensure adequate power is supplied. Printer power requirements are listed in table 3.
!
Uninterruptable power supplies (UPSs) are not recommended.
Install where temperature and humidity are stable, away from water sources, humidifiers, air
!
conditioners, refrigerators, or other major appliances. See table 4 for temperature and humidity
ranges.
Install away from direct sunlight, open flames, or ammonia fumes. If the printer is placed near a
!
window, make sure the window has a curtain or blind to block direct sunlight.
Install with enough space around the printer for access and ventilation.
!
Install away from the direct flow of exhaust from air ventilation systems.
!
Table 3. Electrical specifications for the HP LaserJet 4100 series printers
VoltsFrequencyCircuit CapacityWatts (W) (typical)
100-127 VAC±10% 50/60 Hz ± 3 HzMinimum
recommended =
10 amps
220-240 VAC±10% 50/60 Hz ± 3 HzMinimum
recommended =
5 amps
printing = 450 W
standby = 19 W
PowerSave on = 18 W
(EPA E
NERGY STAR
®
)
printing = 450 W
standby = 19 W
PowerSave on = 18 W
(EPA E
NERGY STAR
®
)
ENChapter 1 Printer description 21
Page 24
Installation requirements
Install the printer with enough space around it to open trays and bins, install toner, and perform
maintenance. If the duple xer is installed, the printer needs 101 mm (4 inches) of ventilation space on
the left side (fan side) and rear of the printer.
390 mm
(15.4 inches)
1043 mm (41.1 inches)
Figure 2.Top view, HP LaserJet 4100/4100N/4100TN/4100DTN printer with trays and rear output bin
open
Figure 3.Side view, HP LaserJet 4100/4100N printer
345 mm
top cover closed
(13.6 inches) with
475 mm
top cover open
(18.7 inches) with
22 Printer descriptionEN
Page 25
465 mm
Figure 4.Side view, HP LaserJet 4100TN/4100DTN printer
Printer weight (without toner cartridge)
HP LaserJet 4100/4100N printers: 18 kg (39 lb)
!
HP LaserJet 4100TN printer: 25 kg (55 lb)
!
HP LaserJet 4100DTN printer: 28 kg (62 lb)
!
595 mm
top cover open
cover closed
(18.3 inches) with top
(23.4 inches) with
ENChapter 1 Printer description 23
Page 26
Environmental requirements
Table 4. Printer and toner cartridge environmental conditions
ItemOperatingStorage
Temperature10
° to 32°
C (50 to 91° F)Toner cartridge:
0
to 35°C (32 to 95° F)
°
Printer:
-20 to 60°C (-4
Relative humidity20 to 80 percent relative
10 to 95 percent RH
humidity (RH) (with no
condensation)
Table 5. Operating sound power or pressure (Per ISO 9296)
Sound power levelL
Operating positionL
Bystander positionL
= 6.6 Bels (A) printing, L
WAd
= 58 dB (A) printing, L
pAm
= 52 dB (A) printing, L
pAm
= 4.1 Bels (A) idle
WAd
= 32 dB (A) idle
pAm
= 26 dB (A) idle
pAm
NoteTesting per International Standards Organization (ISO) 9296/7779
to 140° F)
°
24 Printer descriptionEN
Page 27
Print media specifications
The following tables show print media specifications for the HP LaserJet 4100 series printer.
Table 6. Print media specifications, tray 1
Supported
mediaDimensions
Minimum size
(custom
Maximum size
(custom
3
)
3
)
76 by 127 mm
(3 by 5 inches)
216 by 356 mm
(8.5 by 14 inches)
TransparenciesSame as minimum
and maximum paper
sizes listed above
1
WeightCapacity
60 to 199 g/m
2
100 sheets of 75 g/m
(16 to 53 lb)
Thickness:
2
2
(20 lb) paper
50 transparencies
0.10 to 0.11 mm
(0.0039 to
0.0043 inch)
LabelsThickness:
50 labels
0.13 to 0.18 mm
(0.005 to 0.007
inch)
Envelopes75 to 105 g/m
2
10 envelopes
(20 to 28 lb)
1.
The printer supports a wide range of print media sizes. Check the printer software for
supporte d sizes. To prin t cu sto m -size media, see th e user guide.
2.
Capacity can vary depending on media weight and thickness, and environmental conditions.
3.
Custom media must be fed short-edge first (portrait).
ENChapter 1 Printer description 25
Page 28
Table 7. Print media specifications, trays 2, 3, and 4
Supported
mediaDimensions
1
Letter216 by 279 mm
(8.5 by 11 inches)
A4210 by 297 mm
(8.3 by 11.7 inches)
Executive191 by 267 mm
(7.3 by 10.5 inches)
Executive (JIS)
(custom
3
)
16K (custom
216 by 330 mm
(8.5 by 13 inches)
3
)197 by 273 mm
(7.75 by 10.75
inches)
Legal216 by 356 mm
(8.5 by 14 inches)
B5 (ISO)
(custom
B5 (JIS)
A5
3
)
176 by 250 mm
(6.9 by 9.9 inches)
182 by 257 mm
(7.2 by 10 inches)
148 by 210 mm
(5.8 by 8.2 inches)
WeightCapaci ty
60 to 105 g/m
2
(16 to 28 lb)
500 sheets of 75 g/m
(20 lb) paper or
50 transparencies
2
2
148 by 210 mm
Custom
3
to 216 by 356 mm
(5.8 by 8.2 inches to
8.5 by 14 inches)
1.
The printer supports a wide range of print media sizes. Check the printer software for
supporte d sizes. To prin t cu sto m -size media, see th e user guide.
2.
Capacity can vary depending on media weight and thickness, and environmental conditions.
3.
Custom media must be fed short-edge first (portrait).
Table 8. Print media specifications, optional envelope feeder
Supported
envelopeDimensionsWeightCapacity
Monarch
(#7 3/4)
Commercial 10
(#10)
DL ISO110 by 220 mm
98.4 by 190.5 mm
(3.88 by 7.50 inches)
104.9 by 241.3 mm
(4.13 by 9.5 inches)
(4.33 by 8.66 inches)
75 to 105 g/m2
(20 to 28 lb)
1
75 envelopes
C5 ISO162 by 229 mm
(6.38 by 9.02 inches)
B5 ISO176 by 250 mm
(6.93 by 9.84 inches)
1.
Capacity can vary depending on media weight and thickness, and environmental conditions.
26 Printer descriptionEN
Page 29
Table 9. Print media specifications, optional duplexer
Supported
mediaDimensionsWeight
Letter216 by 279 mm
(8.5 by 11 inches)
A4210 by 297 mm
(8.3 by 11.7 inches)
Executive184 by 267 mm
(7.3 by 10.5 inches)
Legal216 by 356 mm
(8.5 by 14 inches)
B5 (JIS)182 by 257 mm
(7.2 by 10 inches)
60 to 105 g/m2
(16 to 28 lb)
ENChapter 1 Printer description 27
Page 30
Supported types of print media
The printer supports the following types of print media:
plain
!
letterhead
!
prepunched
!
bond
!
color
!
rough
!
preprinted
!
transparency (see page 32)
!
labels (see page 31)
!
recycled
!
card stock
!
NoteTransparencies and labels must be specified for use in laser printers.
28 Printer descriptionEN
Page 31
Types of print media to avoid
The following characteristics can affect the performance of th e HP L aserJe t print er un less t he pap er
or other print media used is specifically designed to work with the HP LaserJet printer.
Print media that is very rough, highly textu red, or heavily embossed.
!
Print media with multipart forms.
!
Print media that offsets materials or discolors.
!
Print media that is damaged, curled, wrinkled, or irregularly shaped.
!
Paper that is extremely shiny or glossy.
!
Paper, labels, envelopes, or transparencies that produce undesirable emissions or melt when
!
exposed to a fusing temperature between 175° to 230° C (347° to 446° F) for 0.1 second.
Media coatings, dyes, or inks that produce undesirable emissions or melt when exposed to a
!
fusing temperature between 175° to 230° C (347° to 446° F) for 0.1 second.
Envelopes that have an open flap with the adhesive exposed so that closing the flap seals the
!
envelope.
Envelopes with clasps, snaps, tie strings, windows, or synt hetic materials. These materials can
!
severely damage the printer.
Envelopes that are not square, straight, or constructed correctly (see "Envelope constructi on" on
!
page 33).
Envelopes with a basis weight less than 60 g/m2 (16 lb) or greater than 105 g/m2 (28 lb).
!
Envelopes with baggy construction or folds that are not sharply creased.
!
NoteSome media types might not w ork in the printer because of diff erences in man uf acturer specifications
or environmental conditions.
ENChapter 1 Printer description 29
Page 32
Weight equivalence table
The following table shows equivalent weights for different grades of paper. A boldface type value
indicates a commonly available standard weight for that grade. Shaded boxes indicate a commonly
available standard weight for that grade.
NoteText and book grades marked with an asterisk (*) actually calculate to 51, 61, 71, and 81 but are
rounded to standard book or text weights of 50, 60, 70, and 80.
When printing on labels, use of tray 1 is recommended. Labels are multiple-layer media typically
consisting of a face sheet (the printable surface), pressure-sensitive adhesive, and a liner (a carrier
sheet coated with a release agent). Labels used in the HP LaserJet printer must be specifically
designed for laser printers . If labels othe r than those comp atib le with laser printers are used, there is
a significant risk of labels peeling or of adh esiv e conta mination that can severely damage the printer .
All materials in laser label stock must be compatib le with the hea t and pressure of the fu sing process .
The table below summarizes the adhesive label specifications that provide the best performance.
Table 11. Adhesive labels specifications
PropertySpecifications
AdhesiveMust not be on any external surfaces of the label before,
during, or after printing. Label construction, adhesive
release strength, and die-cutting must not allow labels to
peel off during printing.
Caliper (thickness)Must not exceed 0.23 mm (9.0 mils).
Fusing compatibilityAll inks, adhesives, and other materials used in the label
construction must be compatible with the heat and
pressure of the fusing process. Materials must not scorch,
melt, ignite, offset materials, or release unde sirable
emissions when heated to a temperature between
175° to 230° C (347° to 446° F) for 0.1 second.
PackagingAdhesive labels should be packaged in moisture-proof
wrap to preserve properties.
Shelf lifeOne year maximum, stored at 23° C (73° F) and 50
percent RH.
ENChapter 1 Printer description 31
Page 34
Overhead transparencies
When printing transparencies, use of tray 1 is recommended. Overhead transparency film must be
designed specifically for use with laser printers. Photocopy tr ansparency film might not be
compatible with laser printers because of higher temperature and stiffness requirements.
Overhead transparency film is very smooth and must have a topcoat to provide the proper electrical
and toner adhesion properties. A transparency that is made of poor materials or that is too thin can
easily melt in the fuser and damage the printer.
Overhead transparency materials must be compatible with the heat and pressure of the fusing
process.
The table below summarizes the overhead transparency specifications that provide the best
performance.
Table 12. Overhead transparencies specifications
PropertySpecifications
Caliper (thickness)0.10 mm to 0.11 mm (4.0 mils to 4.4 mils).
Electrical surface
resistivity
Fusing compatibility Overhead transparency materials must be compatible with
2.0 to 15 by 10
the heat and pressure of the fusing process. Materials
must not discolor, melt, offset materials, or release
undesirable emissions when heated to a temperature
between 175° to 230° C (347° to 446° F) for 0.1 second.
10
ohms/square.
32 Printer descriptionEN
Page 35
Envelopes
Envelope construction
Envelopes can only be printed from tray 1 or from the optional envelo pe feeder. Because of their
construction, some envelopes will not feed through the printer dependably. Observe the following
guidelines when purchasing and using env elop es:
Make sure the envelope’s leading edge, which enters the printer first, is straight, with a sharp,
!
well-creased fold that has no more than two thicknesses of paper. Envelopes that exceed
105 g/m
Avoid using flimsy envelopes with thick or curved leading edges; they will not feed reliably.
!
Envelopes should lie flat and should not be wrinkled, nicked, or otherwise da maged.
!
Avoid envelopes with baggy construction; they might wrinkle while going through the printer’s
!
fuser assembly.
Make sure that the adhesive labels used on envelopes will not scorch, melt, offset, or release
!
undesirable emissions when heated to a temperature between 175° to 230° C (347° to 446° F)
for 0.1 second.
Av oid usin g en v elopes with encapsulat ed adhesiv es th at rely on pressu re ra ther than moist ening
!
to seal.
Do not use envelopes with clasps, snaps, tie strings, transparent windows, holes, perforations, or
!
cutouts.
Do not use envelopes that have any ad h esive surfaces exposed to the printer.
!
Woven or smooth finishes are recommended to ensure good toner adhesion on envelopes.
!
2
(28 lb) basis weight can cause jamming.
Many envelopes will feed through the HP LaserJet printer without problems. However, some
envelope constructions (as shown in the figure below) will not feed reliably. Problems can occur
when the envelopes are folded more tightly than no rmal, causing a thick leading edg e near a corner .
Folding inconsistencies at the manufacturer can cause some envelopes to feed well and others to
jam.
Good constructionBad construction
ENChapter 1 Printer description 33
Page 36
Envelope specifications
The table below summarizes the envelope specifications that provide the best performance.
Table 13. Envelope specificati ons
PropertySpecifications
Basis weight64 g/m
See the user guide for specific printer and input limits.
Caliper (thickness)0.09 mm to 0.14 mm (3.6 mil to 5.5 mil) typical single-layer
thickness.
Surface roughness100 to 200 Sheffield.
Fusing compatibilityAll inks, adhesives, and other materials used in the
envelope const ruction must be compatible with the heat
and pressure of the fusing process. Materials must not
scorch, melt, ignite, offset materials, or release
undesirable emissions when heated to a temperature
between 175° to 230° C (347° to 446° F) for 0.1 second.
2
to 105 g/m2 (17 lb to 28 lb) typical.
Dimensional accuracy
and construction quality
Envelopes m ust be f olded within ±1.0 mm (±0.04 inch)
!
of nominal size with no more than two thickness of
paper anywhere along the leading edge.
All folds must be sharply creased and construction
!
must be tight (not baggy) to avoid wrinkling.
Envelopes must not be stuck together from excess
!
seam adhesive (blocking).
The flap must be flat within 1.5 mm (0 .059 in ) o ver the
!
width where adhesive is applied.
CurlEnvelopes must lie flat, with no more than 6 mm (0.25
inch) curl across the entire surface.
Adhesive flap curlEnvelope flap should be flat, with 1.5 mm (0.059 inch)
over the width where adhesive is applied.
Moisture content4 percent to 6 percent by weight.
GrainDifferent envelope constructions might require different
grain orientations f or best perf ormance, which is le ft to the
discretion of the manufacturer.
PackagingEnvelopes should be contained in a protective box to
prevent edge damage and maintain flatness.
34 Printer descriptionEN
Page 37
Card stock and heavy paper
Many types of card stoc k an d pa pe r can be p rinted from t r ay 1, including index cards and postcards.
For optimum printer performance, do not use paper heavier than 199 g/m
105 g/m
2
(28 lb) in other trays. Paper that is too heavy might cause misfeeds, stacking problems,
Grain Portrait feeding: short or long grain up to 36 lb.
Landscape feeding: long grain.
Electrical surface
9
10
to 1013 ohms/square.
resistivity
9
Electrical volume
to 1014 ohms - cm.
10
resistivity
Surface roughness100 to 190 Sheffield optimal;
30 to 350 Sheffield extended (fusing or feeding
performance can be degraded at outer ranges).
Fusing compatibility Must not scorch, melt, ignite, offset materials, or release
undesirable emissions when heated to a temperature
between 175° to 230° C (347° to 446° F) for 0.1 second.
2
(53 lb) in tray 1 or
Furnish (composition) One hundred percent chemical pulp and/or cotton con tent;
recycled paper with up to 5 percent groundwood can be
used.
Dimensional accuracyCut sheet within ±0.80 mm (±0.03 inch) of nominal.
Cut edge qualityCuts must be smooth and clean with no fray or edge roll.
CurlMust lie flat within 5 mm (0.2 inch).
Moisture content 4 percent to 6 percent by weight.
PackagingCard stock and heavy paper should be packaged in a
WARNING!Keep toner cartridges and toner particles away from excessive heat, sparks, and open flames.
If toner is spilled, avoid breathing in toner particles. Inhalation of toner particles can cause
respiratory tract irritation. Vacuum or sweep the material into a bag or other sealed contai ner. If a
vacuum is used, the motor must be rated as dust-tight.
Dispose of waste toner in accordance with local requirements. Do not discharge toner particles in
drains.
First aid measures
Ingestion. If toner is ingested, drink sever al glasses of w ater. Get medical attention if discomfort
!
persists.
Inhalation. If toner particles are inhaled, move to fresh air immediatel y. If symptoms occur (such
!
as coughing, dizziness, or difficulty breathing), consult a physician.
Eye contact. If toner comes in contact with the ey es , immediate ly flush with plenty of w ater for at
!
least 15 minutes. If irritation persists, consult a physician.
Skin contact. If toner spills on skin, remove as much toner as possible with a dry tissue, and
!
then wash with cold water.
Clothing contact
NoteToner can stain clothing. Hot water or heat (from a clothes dryer) can cause toner to melt and
permanently fuse into clothing.
Clothing is best cleaned by removing as much toner as possible with a dry tissue, and then washing
with cold water. Air-dry clothing.
Additional information
The Toner Cartridge/Drum Material Safety Data Sheet (MSDS) can be obtained by contacting HP at
the following website:
http://www.ljsupplies.com
36 Printer descriptionEN
Page 39
Laser safety
Do not open the laser scanner assembly. Avoid direct exposure to the laser beams.
WARNING!Using controls, making adjustments , b ypassing saf ety s witches , or perf orming procedures oth er than
those specified in this service manual can result in exposure to hazardous radiation.
Regulatory information
For regulatory information and requirements, please see the user guide .
Repair of the printer normally begins with use of the printer’s internal diagnostics in conjunction with
the troubleshooting procedures in chapter 7. When a faulty part is located, repair is generally
accomplished by assembly-level replacement of field-replaceable units (FRUs). Some mechanical
assemblies might be repaired at the subassembly level. Hewlett-Packard does not support
replacement of components on printed circuit boards.
Parts and supplies
Ordering information
Chapter 8 of this manual contains FRU and accessory part numbers. Replacement parts can be
ordered from the HP Customer Services and Support Organization.
Use only accessories specifically designed for this printer. Order accessories from an authorized
service or support provider. (See page 42.)
40 Service approachEN
Page 43
Printer documentation
The table below lists part numbers to use when ordering documentation. For information about
ordering, see page 42.
NoteSome of the materials listed in table 15 are also available online at http://www.hp.com.
Table 15. Printer documentation
ItemDescription or usePart number
Service and Support CDROM for the
HP LaserJet 4100 Series
Printers
HP LaserJet 4100 Series
Printers Service Manual
HP LaserJet 4100 Series
Printers Training Kit
ENChapter 2 Service approach 41
An interactive training CDROM for printer service
representatives and custom er
care specialists
A service manual for the 4100
printer series.
Includes service manual and
service and suppo rt CD-ROM
C8049-60116
(English only)
C8049-90920
(English only)
C8049-67901
(English only)
Page 44
HP direct ordering for genuine HP parts
Customer Services and Support Organization (CSSO):
(1) (800) 227-8164 (U.S. only)
!
(49 7031) 142253 (Europe only)
!
See chapter 8 for additional information.
!
Exchange program
HP offers remanufactured assemblies for som e pa rts. These are identified in chap te r 8 and can be
ordered through CSSO.
Consumables
Paper and ton er cartridges can be ordered directly from Hewlett-Packard. See chapter 8 for o rdering
information.
World Wide Web
Printer drivers, updated HP printer software, and product and support information can be obtained
from the following URL:
in the U.S., http://www.hp.com/suppor t/ lj41 00
Printer drivers can be obtained from the following sites:
in China, ftp://www.hp.com.cn/support/lj4100
in Japan, ftp://www.jpn.hp.com/supp ort/lj4100
in Korea, http://www.hp.co.kr/support/lj4100
in Taiwan, http://www.hp.com.tw/sup p ort/lj4100
or the local driver website, http://www.dds.com.tw
HP service parts information compact disc
This powerful, CD-ROM-based parts information tool is designed to give users fast, easy access to
parts information and recommended stocking lists for a wide range of HP products. To subscribe to
this quarterly service in the U.S. or Canada, call (1) (800) 336-5987. In Asia Pacific , call (65) 740-
4484. Parts identification and pricing information can also be fou nd on the World Wide Web at: http:/
/www.hp.com/go/partsinfo
42 Service approachEN
Page 45
HP support assistant compact disc
This support tool offers a comprehensive on line information system designed to provide technical
and product information about He wlett-Packard products. To subscribe to this quarterly service in the
U.S. or Canada, call (1) (800) 457-1762. In Hong Kong, Indonesia, Malaysia, or Singapore, call
Mentor Media at (65) 740-4477.
Customer care reseller sales and service support center
The Customer Care Reseller Sales and Service Support Center is available to assist resellers and
service technicians. To reach this support center, call (1) (800) 544-9976.
HP authorized resellers and support
To locate authorized HP resellers and support, call
(1) (800) 243-9816 in the U.S. or (1) (800) 387-3867 in Canada.
HP service agreements
Call (1) (800) 743-8305 in the U.S. or (1) (800) 268-1221 in Canada.
Other areas
Outside of North America and Europe, contact the local HP sales office for assistance in obtaining
technical support for resellers and service technicians.
ENChapter 2 Service approach 43
Page 46
Toner cartridge information
The toner cartridge is designed to simplify replacement of the major “consumable” parts. The toner
cartridge contains the printing mechanism and a supply of toner.
At five percent page coverage, a toner cartridge will print approximately 6,000 or 10,000 pages,
depending on the toner cartridge model installed. A toner cartridge might print fewer pages if
routinely printing with dense ink coverag e, or more pages when routin ely printing pages with less ink
cover age, such as short memos. If EconoMode or small media is always used, however, the toner
supply could outlast the mechanical parts in the toner cartridge.
NoteFor best results , alwa ys use a toner cartridge before the expirat ion date stamped on the toner cartridge
box.
Refilled toner cartridges
While Hewlett-Packard does not prohibit the use of refilled toner cartridges during the warranty
period or while the printer is under a maintenance contract, it is not recommended for the following
reasons:
Repairs resulting from the use of refilled toner cartridges are not covered under Hewlett-P ac kard
!
warranty or maintenance contracts.
Hewlett-Packard has no control or process to ensure that a refilled toner cartridge functions at
!
the high level of reliability of a new HP LaserJet toner cartridge. Hewlett-Packard also cannot
predict the long-term reliability effect on the printer from using different toner formulations found
in refilled cartridges.
The print quality of HP LaserJet toner cartridges influences the customer’s perception of the
!
printer. Hewlett-Packard has no control over the actual print quality of a refilled toner cartridge.
Recycling toner cartridges
To reduce waste, Hewlett-Packard offers a r ecycling program for used toner cartridges. Cartridge
components that do not wear out are recycled . Plastics and other materials are recycled.
Hewlett-Packard pays the shipping costs from the user to the recycling plant. For each cartridge
returned, Hewlett-Packard donates one U.S . dollar to be shared by the Nature Conservancy and the
National Wildlife Federation. To join this recycling effort, follow the instructions inside the toner
cartridge box.
44 Service approachEN
Page 47
Warranty statement
The warranty for this product gives the customer specific legal rights. There might also be other
rights that vary from area to area.
Printer warranty
Hewlett-Packard warrants the HP LaserJet 4100 series printer for one year. For detailed information
about the printer warranty, see the limited warranty statement in the user guide.
Limited warranty for toner cartridge life
NoteThe warranty belo w applies to the toner cartridge that came with this printer. This w arranty supersedes
all previous warranties (7/19/96).
The HP toner cartridge is warranted to be free from defects in materials and workmanship for the life
of the cartridge until the HP toner is depleted. The HP toner is depleted when the printer indicates a
toner-low message. Hewlett-Packard will, at its option, either replace products that prove to be
defective or refund the purchase price.
The warranty does not cover toner cartridges that have been refilled, or are emptied, abused,
misused, or tampered with in any way. This limited warranty gives the customer specific legal rights.
The customer might have other rights which vary from state to state, province to province, and
country to country.
To the extent allow ed by applicable law, in no event shall Hewlett-Packard Company be liable for any
incidental, consequential, special, indirect, punitive, or exemplary damages or lost profits from any
break of this warranty or otherwise.
The printer control panel consists of a two-line display and lights and keys as shown below:
2-line
display
Ready
Data
Attention
Figure 5.Control panel layout
Control panel lights
Table 16. Control panel lights
READY
Go
Cancel
Job
Menu
Item
– Value +
Select
LightIndication
ReadyThe printer is ready to print.
DataThe printer is processing informa tio n.
AttentionAction is required. See the control panel display .
ENChapter 3 Printer operation 49
Page 52
Control panel keys
Table 17. Control panel keys
KeyFunction
G
O
C
ANCEL JOB
M
ENU
Places the printer either online or offline.
!
Prints any data in the printer’s buffer.
!
Allows the printer to resume printing after being offline.
!
Clears most printer messages and places the printer
online.
Allows the printer to continue printing with an error
!
message such as
UNEXPECTED PAPER SIZE
Confirms a manual feed request if tray 1 is loaded and
!
TRAY 1 MODE=CASSETTE
TRAY X LOAD [TYPE] [SIZE]
.
has been set from the paper-
or
handling menu on the printer control panel.
Overrides a manual feed request from tray 1 by
!
selecting paper from the next available tray.
Exits the control panel menus. (To save a selected
!
control panel setting, first press S
ELECT
.)
Cancels the print job that the printer is processing. The time
and pages it takes to cancel depends on the size of the
print job and the number of pages in the buffer. (Press it
only once.)
Cycles through the control panel menus. Press the right
end of the button to move forward or the left end of the
button to move backward.
I
TEM
– V
S
ELECT
[?]
Cycles through the selected menu’s items. Press the right
end of the button to move forward or the left end of the
button to move backward.
+Cycles through the selected menu item’s values. Press + to
ALUE
move forward or – to move backward.
Saves the selected value for that item. An asterisk (*)
!
appears next to the selection to indicate that it is the
new default. Default settings remain when the printer is
switched off or reset.
Prints any information pages shown in the control
!
panel.
Provides instructions for resolving most printer errors.
Certain control panel error messages alternate with
instructions about gaining access to the online help system.
Press the right end of the I
button to scroll through help
TEM
messages.
50 Printer operationEN
Page 53
Settings and defaults
The printer makes most printing decisions based on either tempor ary settings or permanent defaults .
NoteSettings sent from software applications override printer defaults.
Table 18. Settings and defaults
Setting or defaultExplanation
Temporary settingA value set for the current print job by the software
application. For example, a request from the software to
print three copies instead of the control panel default value
of one copy is a t empor ary setting. The p rinter contin ues t o
use the temporary setting until it receives another software
request or until it is reset.
Control panel defaultA value set at the control panel when you select a menu
item. An asterisk appears, indicating the default setting.
The printer retains this default when it is turned off.
Factory defaultThe value set for each menu item at the factory. Factory
defaults are listed in the item column in the menu tables
starting on page 52.
Setting the display language
1Press and hold S
on the control panel display.
2Release S
3When
– V
ALUE
4Press S
ELECT
LANGUAGE=ENGLISH
+ until the language you want appears.
to save your choice.
ELECT
An asterisk (*) will appear beside the selected language.
5Press G
to exit the menu.
O
while turning on the printer. Hold S
ELECT
.
appears on the display, press
ELECT
until
SELECT LANGUAGE
appears
ENChapter 3 Printer operation 51
Page 54
Control panel menus
Press M
for access to all control panel menus. When additional trays or other accessories are
ENU
installed in the printer, new menu items might automatically appear.
Changing a control panel setting
1Press M
2Press I
3Press – V
4Press S
An asterisk (*) appears next to the selection in the display, indicating that it is now the default.
5Press G
NoteSettings in the printer driver and software application override control panel settings. Software
application settings override printer driver settings.
If you cannot get to a men u or it em, it is ei ther not a n option for the printer, or the customer’s network
administrator has lock ed the function (the control pa nel reads
customer’s network administrator.
until the menu you want appears on the control panel display.
ENU
until the item you want appears.
TEM
+ until the setting you want appears.
ALUE
to save the selection.
ELECT
to exit the menu.
O
ACCESS DENIED MENUS LOCKED
). See the
Printing a control panel menu map
To see the current settings f or all o f the men us and men u items available on the control panel, print a
control panel menu map.
1Press M
2Press I
3Press S
until
ENU
TEM
ELECT
INFORMATION MENU
until
PRINT MENU MAP
to print the menu map.
appears on the control panel display.
appears.
52 Printer operationEN
Page 55
Quick copy jobs menu
This menu provides a list of the quick copy jobs stored on the printer. The user can print or delete
these jobs from the control panel.
NoteThis menu appears only if you have an optional hard-disk accessory or 32 MB of memory installed
and quick copy jobs are stored on it.
Table 19. Quick copy jobs menu
ItemValueExplanation
[USERNAME]
[JOBNAME]
COPIES=11 to 999
DELETE
The name of the person who owns the
quick cop y job and the job name.
The number of additional copies the user
wants to print.
: Prints the requested number of
1-999
copies of the job.
DELETE
hard disk.
After changing a setting, press S
: Deletes the job from the printer’ s
.
ELECT
ENChapter 3 Printer operation 53
Page 56
Private/stored jobs menu
This menu provides a list of the stored jobs on the printer. The user can print or delete these jobs
from the control panel. See the user guide for more information.
NoteThis menu appears only if you have an optional hard-disk accessory or 32 MB of memory installed
and there are private or stored jobs on it.
Table 20. Private/stored jobs menu
ItemValueExplanation
[USERNAME]
[JOBNAME]
PIN:0000
COPIES=11
to
999
DELETE
The name of the person who owns the
quick cop y job and the job name.
To print the job, the user must enter the
personal identification number (PIN)
assigned to the job in the driver. See the
user guide for more information.
The number of copies the user wants to
print.
: Prints the requested number of
1-999
copies of the job.
DELETE
After changing a setting, press S
: Deletes the job from the printer.
ELECT
.
54 Printer operationEN
Page 57
Information menu
This menu contains printer inf ormation pages that giv e det ails about the printer and it s configur ation.
To print an information page, use the I
Table 21. Information menu
ItemExplanation
key to scroll to the desired page and then press S
TEM
ELECT
.
PRINT
MENU MAP
PRINT
CONFIGURATION
PRINT
PCL FONT LIST
PRINT
PS FONT LIST
PRINT
FILE DIRECTORY
PRINT
EVENT LOG
SHOW
EVENT LOG
The menu map shows the la y out and cur rent settings of the
control panel menu items.
The configuration page shows the printer’s current
configuration. If an HP JetDirect print server card is
installed (HP LaserJet 4100N/TN/DTN printers), a JetDirect
Configuration Page will also print.
The PCL font list shows all the PCL fonts currently av ailab le
to the printer.
The PS font list shows all the PS fonts currently available to
the printer.
This item appears only when a mass storage device (such
as an optional flash DIMM or hard disk) containing a
recognized file system is installed in the printer. The file
directory shows information for all installed mass storage
devices.
The event log lists the most current 20 printer events or
errors.
This item allows you to view the most recent printer events
on the control panel display. Press – V
+ to scroll
ALUE
through the event log entries.
Note
The ev ent log lists the err or number (t he first tw o digits), the
error code, and the associated page co unt.
PRINT USAGE PAGE
The usage page shows the quantity of pages printed, as
well as the paper source used. It also re flects the number
of one-sided versus two-sided pages.
Note
This item will only show in the information menu if an
optional hard-disk accessory or 32 MB of memory is
installed in the printer. This item will generate a page
containing information that can be used for accounting
purposes.
PRINT SUPPLIES STATUS
When used with an HP genuine toner cartridge, the
supplies status page shows toner cartridge information,
statistics about the total number of pages by size and jobs
processed, toner cartridge manufacture date and serial
number, page counts, and maintenance information.
ENChapter 3 Printer operation 55
Page 58
Table 21. Information menu (continued)
ItemExplanation
PRINT
PAPER PATH TEST
The paper-path test can be used to verify that the paper
path is working correctly, or to troubleshoot prob lems with a
type of paper . Choose the in put tr ay , out put bin, duplexer (if
available), and number of copies.
56 Printer operationEN
Page 59
Paper-handling menu
When paper-handling settings are correctly configured through the control panel, you can print by
choosing the type and size of media from the printer driver or software application.
Some items in this menu (such as du ple x and man ual f eed) are a v ailab le from a softw are applica tion,
or from the printer driver (if the a ppropriate driv er is in stalled) . Printer driv er an d software application
settings override control panel settings.
Table 22. Paper handling menu
Item/Default valueValuesExplanation
ENVELOPE FEEDER
SIZE=COM10
(110 V printers)
or
SIZE=DL
(220 V printers)
ENVELOPE FEEDER
TYPE=PLAIN
TRAY 1 MODE=
FIRST
For supported print media
sizes, see page 28.
For supported print media
types, see page 28.
FIRST
CASSETTE
This item appears only when the
optional envelope feeder is
installed. Set the value to
correspond with the envelope
size currently loaded in the
envelope feeder.
This item appears only when the
optional envelope feeder is
installed. Set the value to
correspond with the envelope
type currently loaded in the
envelope feeder.
Determine how the printer will
use tray 1.
: If print media is loaded in
FIRST
tray 1, the printer will pull media
from that tray first.
CASSETTE
assigned to tray 1 using the
TRAY 1 SIZE
in this menu when
MODE=CASSETTE
tray 1 to be used as a reserved
tray.
: A media size must be
option (the next item
TRAY 1
). This allows
TRAY 1 SIZE=
LETTER
(110 V printers)
or
A4
(220 V printers)
TRAY 1 TYPE=
PLAIN
TRAY 2 TYPE=
PLAIN
ENChapter 3 Printer operation 57
For supported print media
sizes, see page 25
through page 27.
For supported print media
types, see page 28.
For supported print media
types, see page 28.
This item appears only when
TRAY 1 MODE= CASSETTE
value to correspond with the
media size currently loaded in
tray 1.
This item appears only when
TRAY 1 MODE= CASSETTE
value to correspond with the print
media type currently loaded in
tray 1.
Set the value to correspond with
the media type currently loaded in
tray 2.
. Set the
. Set the
Page 60
Table 22. Paper handling menu (continued)
Item/Default valueValuesExplanation
TRAY 3 TYPE=
PLAIN
TRAY 4 TYPE=
PLAIN
SMALL PAPER
SPEED=NORMAL
MANUAL FEED=OFFOFF
For supported print media
types, see page 28.
For supported print media
types, see page 28.
NORMAL
SLOW
ON
This item appears only when a
third paper tray is installed. Set
the value to correspond with the
media type currently loaded in
tray 3.
This item appears only when a
fourth paper tray is installed. Set
the value to correspond with the
media type currently loaded in
tray 4.
Select
printing envelopes (or small
media sizes) and standard media
sizes and print problems appear.
Be sure to return the speed to
NORMAL
When
briefly pauses between pages to
reduce the possibility of a
repeating image.
Feed the print media manually
from tray 1, rather than
automatically from a tray. When
MANUAL FEED=ON
empty, the printer goes offline
when it receives a print job and
displays
SIZE]
when alternating
SLOW
when finished.
is selected, the printer
SLOW
and tray 1 is
MANUALLY FEED [PAPER
.
DUPLEX=OFFOFF
ON
BINDING=
LONG EDGE
58 Printer operationEN
LONG EDGE
SHORT EDGE
This item appears only when an
optional duplexer is installed. Set
the value to
sides (duplex) or
one side (simplex) of a sheet of
paper.
This item appears only when an
optional duplexer is installed and
DUPLEX=ON
edge when duplexing (printing on
both sides of paper).
to print on both
ON
to print on
OFF
. Choose the binding
Page 61
Table 22. Paper handling menu (continued)
Item/Default valueValuesExplanation
CONFIGURE FUSER
MODE MENU=NO
[TYPE]=NORMALNORMAL
NO
YES
HIGH1
LOW
HIGH2
Configure the fuser mode
associated with each print media
type. (This is only necessary if
you ex perience loose toner
problems, e xcessive curl, or other
print-quality issues when printing
on certain media types.)
: The fuser-mode menu items
NO
are not av ailable.
: Additional items appear (see
YES
below).
Note
To see the default fuser mode for
each media type, select
scroll back to the information
menu, and print a menu map.
This item appears only when
CONFIGURE FUSER MODE
MENU=YES
set to
default. The exceptions are as
follows:
ROUGH=HIGH1
TRANSPARENCY=LOW
NORMAL
fuser temperature for optimum
results on most typical papers.
HIGH1
higher fuser temperature.
should be used with roughtextured or heavy paper if you
have trouble with toner adhering
to the page.
LOW
temperature, which can help
reduce curl on lightweight paper
and transparencies. However,
toner might not adhere as well to
the page.
HIGH2
higher temperature as
it also slows printer throughput,
which creates the best fusing for
very rough paper.
Note
HIGH2
for A4-, letter-, and legal-size
paper, and slows the throughput
to 16 pages per minute.
. Most paper types are
NORMAL
fuser mode provides a
fuser mode provides a lower
fuser mode uses the same
fuser mode only operates
fuser mode by
fuser mode provides a
YES
HIGH1
HIGH1
,
, but
ENChapter 3 Printer operation 59
Page 62
Printing menu
Some items in this menu can be used from a software application or from the printer driver (if the
appropriate driver is installed). Printer driver and software application settings override control panel
settings.
Table 23. Printing menu
ItemValuesExplanation
COPIES=11 TO 999
PAPER SIZE=LETTER
ENVELOPE=COM10
(110 V printers)
or
PAPER SIZE=A4
ENVELOPE=DL
(220 V printers)
CONFIGURE CUSTOM
PAPER=NO
For supported print media
sizes, see page 26 through
page 28.
NO
YES
Set the default number of
copies by selecting any
number from 1 to 999.
Press –V
change the setting by
increments of 1, or hold
down – V
increments of 10.
Set the default size for print
media. (The item name
changes from paper to
envelope as you scroll
through the available sizes.)
The custom-paper
NO:
menu items are not
available.
The custom-paper
YES:
menu items appear (see the
next item).
+ once to
ALUE
+ to scroll by
ALUE
UNIT OF MEASURE=
INCHES
(110 V printers)
or
MILLIMETERS
(220 V printers)
X DIMENSION=8.5 INCHES
(110 V printers)
or
216 MILLIMETERS
(220 V printers)
Y DIMENSION=14.0 INCHES
(110 V printers)
or
356 MILLIMETERS
(220 V printers)
ORIENTATION=
PORTRAIT
INCHES
MILLIMETERS
3.00 TO 8.5 INCHES
(110 V printers)
or
76 to 216 MILLIMETERS
(220 V printers)
5.00 TO 14.0 INCHES
(110 V printers)
or
127 to 356 MILLIMETERS
(220 V printers)
PORTRAIT
LANDSCAPE
This item appears only
when
CONFIGURE CUSTOM
PAPER=YES
of measurement for the
custom paper size.
This item appears only
when
PAPER=YES
media width dimension to
be fed into the printer (short
edge).
This item appears only
when
PAPER=YES
media length dimension
(long edge).
Determine the default
orientation of print on the
page.
. Select the unit
CONFIGURE CUSTOM
. Select the
CONFIGURE CUSTOM
. Select the
60 Printer operationEN
Page 63
Table 23. Printing menu (continued)
ItemValuesExplanation
FORM LENGTH=60 LINES
(110 V printers)
or
64 LINES
(220 V printers)
PCL FONT
SOURCE=INTERNAL
PCL FONT
NUMBER=0
5 to 128
INTERNAL
SOFT
SLOT 1, 2, OR 3
(depends on location of
available fonts)
0 TO 999
(depends on location of
available fonts)
Sets vertical spacing from 5
to 128 lines for default
paper size. Press – V
ALUE
+
once to change the setting
by increments of 1, or hold
down – V
+ to scroll by
ALUE
increments of 10.
INTERNAL
SOFT:
SLOT 1, 2
: Internal fonts.
Permanent soft fonts.
, or 3: Fonts
stored in one of the three
DIMM slots.
Note
Print a PCL font list
(page 55) to see the
available fonts.
The printer assigns a
number to each font and
lists the numbers on the
PCL font list. The font
number appears in the font
# column of the printout.
Note
Print a PCL font list
(page 55) to see the
available fonts.
PCL FONT PITCH=
10.00
PCL SYMBOL
SET=PC-8
0.44 to 99.99
PC-8
many others
This item might not appear,
depending on the font
selected. Press – V
ALUE
+
once to change setting by
increments of 0.01 for pitc h,
or hold down – V
ALUE
+ to
scroll by increments of 1.
Select any one of several
available symbol sets from
the printer control panel. A
symbol set is a unique
grouping of all the
characters in a font . A v alue
of PC-8 or PC-850 is
recommended for line
drawn characters.
ENChapter 3 Printer operation 61
Page 64
Table 23. Printing menu (continued)
ItemValuesExplanation
COURIER FONT=REGULARREGULAR
DARK
WIDE A4=NONO
YES
Select the version of
Courier font to use:
REGULAR
Courier font av ailabl e on the
HP LaserJet 4 series
printers.
DARK
font available since the HP
LaserJet III series printers.
Both fonts are not available
at the same time.
The
changes the number of
characters that can be
printed on a single line of
A4 paper.
NO
characters can be printed
on one line.
YES
characters can be printed
on one line.
: The internal
: The internal Courier
WIDE A4
: Up to 78 10-pitch
: Up to 80 10-pitch
setting
OVERRIDE
A4/LETTER=NO
APPEND CR TO LF=
NO
NO
YES
NO
YES
Choose
letter-size paper
automatically when an A4
job is sent, but no A4-size
paper is loaded in the
printer (or to print on A4size paper when a letter job
is sent, but no letter-size
paper is loaded in the
printer).
Select
carriage return to each line
feed encountered in
backward-compatible PCL
jobs (pure text, no job
control). Some
environments, such as
UNIX, indicate a new line
using only the line-feed
control code. This option
allows the user to append
the required carriage return
to each line feed.
to print on
YES
to append a
YES
62 Printer operationEN
Page 65
Print quality menu
Some items in this menu can be used from a software application, or from the printer driver (if the
appropriate driver is installed). Printer driver and software application settings override control panel
settings.
Table 24. Print quality menu
ItemValuesExplanation
RESOLUTION=
FASTRES 1200
300
600
FASTRES 1200
PRORES 1200
Select the resolution from the
following values:
: Produces draft print quality
300
at the printer’s maximum speed;
300 dpi (dots per inch) is
recommended for some
bitmapped fonts and graphics ,
and for compatibility with the
HP LaserJet III family of
printers.
: Produces high print quality
600
at the printer’s maximum speed.
FASTRES 1200
optimum print quality
(comparable to 1200 dpi) at the
printer’s maximum speed.
PRORES 1200
optimum print quality (true 1200
dpi) at the printer’s maximum
speed.
When the resolution is
changed, any downloaded
resources (such as fonts or
macros) will need to be
downloaded again, unless they
are stored on an optional hard
disk or flash DIMM.
: Produces
: Produces
RET=MEDIUMOFF
LIGHT
MEDIUM
DARK
ENChapter 3 Printer operation 63
Use the printer’s Resolution
Enhancement technology
(REt) setting to produce print
with smooth angles, curves,
and edges.
The REt does not affect print
quality when the print
resolution is set to
ProRes 1200. All other print
resolutions, including
FastRes 1200, benefit from
REt.
Page 66
Table 24. Print quality menu (continued)
ItemValuesExplanation
ECONOMODE=OFFOFF
ON
TONER DENSITY=31
2
3
4
5
Turn EconoMode on (to save
toner) or off (for high quality).
EconoMode creates draftquality printing by reducing the
amount of toner on the printed
page by up to 50 percent.
Caution
Hewlett-Packard does not
recommend constant use of
EconoMode. If EconoMode is
always used, the toner supply
might outlast the mechanical
parts in the toner cartridge.
Lighten or darken the print on
the page by changing the
toner density setting. The
settings range from 1 (light) to
5 (dark), but the def ault setting
of 3 usually produces the best
results.
Use a lower toner density
setting to save toner.
AUTO
CLEANING PAGE=OFF
AUTO CLEANING
FREQUENCY=2000
CLEANING PAGE SIZE=
LETTER
(110 V printers)
or
A4
(220 V printers)
ON
OFF
1000
2000
5000
10,000
20,000
LETTER
A4
Set
AUTO CLEANING PAGE=ON
to
have the printer automatically
create and process a cleaning
page (to remove debris from
the fuser) per the interval
specified in the next item.
This item appears when
CLEANING PAGE=ON
AUTO
.
Select the page interval for
automatically creating and
processing a cleaning page.
This item appears when
CLEANING PAGE=ON
AUTO
.
This sets the media size upon
which the auto cleaning page
is processed. The default
media size corresponds with
the cold-reset media size.
64 Printer operationEN
Page 67
Table 24. Print quality menu (continued)
ItemValuesExplanation
CREATE
CLEANING PAGE
PROCESS
CLEANING PAGE
No value to select.Press S
ELECT
to print a
cleaning page (for cleaning
excess toner from the fuser
assembly).
In order for the cleaning page
to work correctly, print the
page on copier-grade paper
(not bond or rough paper).
Follow the instructions on the
cleaning page.
No value to select.This item appears only after a
cleaning page has been
created (as described above).
Follow the instructions on the
cleaning page.
Note
It might take appro ximately two
minutes for the printer to finish
processing the cleaning page.
ENChapter 3 Printer operation 65
Page 68
Configuration menu
Items in this menu affect the printer’s behavior. Configure the printer according to printing needs.
Table 25. Configuration menu
ItemValuesExplanation
Set the printer to enter PowerSave after
it has been idle for a specified amount
of time. Turning PowerSave off is not
recommended.
The PowerSave feature does the
following:
Minimizes the amount of power
!
consumed by the printer when it is
idle.
Reduces wear on the printer’s
!
electronic components by turning
off the backlight on the display.
When you send a print job, press a
control panel key, open a paper tray, or
open the top cover, the printer
automatically comes out of PowerSave
mode.
Note
PowerSave turns off the backlight on
the display, but the display is still
readable.
Determine how the printer behaves
when toner is low . A toner-low message
first appears on the displa y wh en about
15 percent of the toner remains in the
cartridge (about 1,500 pages remaining
for the 10,000-page cartridge and
about 900 pages remaining for the
6,000-page cartridge at 5 percent page
coverage).
CONTINUE
: The printer will continue to
print with the message displayed.
: The printer will stop printing and
STOP
further action is required.
TONER OUT=
CONTINUE
CONTINUE
STOP
Determine how the printer behaves
when toner is out. A toner-out message
appears on the display when the toner
cartridge is out of toner.
CONTINUE
: The printer will continue to
print with the message displayed.
Howev er, the print quality might be very
poor or difficult to see.
: The printer will stop printing and
STOP
further action is required.
66 Printer operationEN
Page 69
Table 25. Configuration menu (continued)
ItemValuesExplanation
CLEARABLE
WARNINGS=JOB
AUTO CONTINUE=
ON
JAM RECOVERY=
AUTO
JOB
ON
ON
OFF
AUTO
ON
OFF
Set the length of time that a clearable
warning appears on the printer control
panel.
: Warning messages appear on the
JOB
control panel until the end of the job
from which they were generated.
: Warning messages appear on the
ON
control panel until G
is pressed.
O
Determine how the printer reacts to
errors.
: If a minor error occurs that pre v ents
ON
printing, the message will appear, and
the printer will go offline for 10 seconds
before returning online.
: If a minor error occurs that
OFF
prevents printing, the message will
remain on the display and the printer
will remain offline until G
is pressed.
O
If the printer is on a network, you will
probably want to t urn
.
ON
AUTO CONTINUE
to
Determine how the printer behaves
when a jam occurs.
: The printer automatically selects
AUTO
the best mode for printer jam recovery
(usually ON).
: The printer automatically reprints
ON
pages after a jam is cleared.
: The printer does not reprint pages
OFF
following a jam. Printing performance
might be increased with this setting.
MAINTENANCE
MESSAGE=OFF
OFF
This item appears only after the
PERFORM PRINTER MAINTENANCE
message appears on the display.
The
:
OFF
MAINTENANCE
PERFORM PRINTER
message will be
temporarily cleared but will return after
5 percent of the printer maintenance
interval (or after approximately 10,000
pages).
The message should be turned off only
while waiting for the printer
maintenance kit to be installed. If the
required maintenance is not perf ormed,
the printer’s performance will degrade.
PRINT PS ERRORS=
OFF
OFF
ON
Select ON to print the PS error page
when PS errors occur.
ENChapter 3 Printer operation 67
Page 70
Table 25. Configuration menu (continued)
ItemValuesExplanation
RAM DISK=AUTOOFF
AUTO
QUICK COPY
0 to 50
JOBS=32
HELD JOB
TIMEOUT=OFF
OFF
1 HOUR
4 HOURS
1 DAY
1 WEEK
Determine how the RAM disk is
configured. This item appears only if
there is no optional hard-disk
accessory installed and the printer has
at least 16 MB of memory.
: The RAM disk is disabled.
OFF
Configure the amount of memory to be
used through the following item:
DISK SIZE
Note
.
If the setting is changed from
AUTO
or from
AUTO
to
, the printer will
OFF
OFF
RAM
to
automatically reinitialize.
Specifies the number of quick cop y jobs
that can be stored on the printer’s harddisk accessory.
Sets the amount of time that stored
jobs are kept before being
automatically deleted from the printer.
PERSONALITY=
AUTO
AUTO
PCL
PS
Select the default printer language
(personality). Possible values are
determined by which valid languages
are installed in the printer.
Normally, you should not change the
printer language (the default is
AUTO
). If
you change it to a specific printer
language, the printer will not
automatically switch from on e language
to another unless specific software
commands are sent to the printer.
68 Printer operationEN
Page 71
I/O menu
Items in the I/O (input/output) menu affect the communication between the printer and the computer.
Table 26. I/O menu
ItemValuesExplanation
PARALLEL ADV
COMMUNICATN=ON
PARALLEL HIGH
SPEED=YES
I/O TIMEOUT=15
SECONDS
ON
OFF
YES
NO
5 to 300
SECONDS
Turn the bidirectional parallel
communication on or off. The default is set
for a bidirectional parallel port (IEEE-1284).
This setting allows the printer to send
status readback messages to the
computer. (Turning on the parallel
advanced functions might slow language
switching.)
Select the speed at which data is
transmitted to the printer.
: The printer accepts faster parallel
YES
communications used for connections with
newer computers.
: The printer accepts slower parallel
NO
communications used for connections with
older computers.
Select the I/O timeout period in seconds.
(The I/O timeout refers to the time,
measured in seconds, that the printer waits
before ending a print job.)
This setting allows you to adjust timeout f or
best performance. If data from other ports
appear in the middle of your print job,
increase the timeout value.
Press – V
increments of 1, or hold down – V
scroll by increments of 10.
+ once to change settings by
ALUE
ALUE
+ to
ENChapter 3 Printer operation 69
Page 72
EIO menu (networked printers)
The EIO (enhanced input/output) menu appears only when an EIO device is installed in an EIO slot
on the printer (such as an HP JetDirect print server). The items in the menu depend on the particular
accessory product installed. If the printer contains an HP JetDirect print server EIO card, you can
configure basic networking parameters using the EIO menu. These and other parameters can also
be configured through HP Web JetAdmin.
Table 27. EIO menu
ItemValuesExplanation
CFG NETWORK=NONO
YES
IPX/SPX=ONON
OFF
DLC/LLC=ONON
OFF
TCP/IP=ONON
OFF
ATALK=ONON
OFF
Select whether or not you want to use
the HP JetDirect menu.
: Bypass the HP JetDirect menu.
NO
: Use the HP JetDirect menu. You
YES
must change this to
want to use the menu.
Note
You must select
display the following items.
Select whether the IPX/SPX protocol
stack (in Novell NetWare networks, for
example) is enabled (ON) or disabled
(
).
OFF
Select whether the DLC/LLC protocol
stack is enabled (ON) or disabled (
Select whether the TCP/IP protocol
stack is enabled (ON) or disabled (
Select whether the Apple EtherTalk
protocol stack is enabled (ON) or disabled
(
).
OFF
CFG NETWORK=YES
each time you
YES
to
OFF
OFF
).
).
70 Printer operationEN
Page 73
Table 27. EIO menu (continued)
ItemValuesExplanation
CFG IPX/SPX=NONO
YES
CFG TCP/IP=NONO
YES
Select whether you want to use the IPX/
SPX menu and set IPX/SPX protocol
parameters.
: Bypass the IPX/SPX menu items.
NO
: Use the IPX/SPX menu items.
YES
In the IPX/SPX menu, you can specify
the frame-type parameter used on your
network.
The default is
and limit the frame type to the first one
detected.
For Ethernet cards, frame type
selections are
EN_8022, EN_SNAP
For Token Ring cards, frame type
selections include
In the IPX/SPX menu for Token Ring
cards, you can also specify NetWare
Source Routing parameters, which are
SRC RT=AUTO
.
ALL RT
Select whether you want to use the
TCP/IP menu and set TCP/IP protocol
parameters.
: Bypass the TCP/IP menu items.
NO
: Use the TCP/IP menu items.
YES
In the TCP/IP menu, you can specify
BOOTP=YES
parameters to be automatically loaded
from a bootP or DHCP server when the
printer is turned on.
If you specify
can manually set the following TCP/IP
parameters from the control panel: each
byte of the IP address (IP), Subnet Mask
(SM), Syslog Server (LG), and Default
Gateway (GW). You can also manually
set the idle timeout period.
Print an HP JetDirect configuration page
to verify your settings. Howev er , note that
the print server might overwrite selected
parameters with values that ensure
proper operation.
or
, to automatically set
AUTO
EN_8023, EN_II,
.
TR_8022, TR_SNAP
(default),
DHCP=YES
BOOTP=NO
OFF, SINGLE R
for TCP/IP
and
DHCP=NO
.
, or
, you
ENChapter 3 Printer operation 71
Page 74
Table 27. EIO menu (continued)
ItemValuesExplanation
CFG LINK=NONO
YES
Select whether you want to manually
configure the HP JetDirect 10/100BaseTX print server’s network link speed and
communication mode. The HP JetDirect
settings must match the network.
: Bypass the link configuration menu
NO
items.
: Use the link configuration menu
YES
items. One of the following link
configurations can be set:
: The print server will automatically
AUTO
configure itself to match the network’s
link speed and communication mode.
10T HALF
operation.
10T FULL
operation.
100T HALF
operation.
100T FULL
operation.
: 10 Mbps, half-duplex
: 10 Mbps, full-duplex
: 100 Mbps, half-duplex
: 100 Mbps, full-duplex
72 Printer operationEN
Page 75
Resets menu
Use the reset and restore options on this menu with caution. You can lose buffered page data or
printer configuration settings when you select these items. Only reset the printer under the following
circumstances:
You want to restore the printer’s default settings.
!
Communication between th e printer and computer has been interrupted.
!
The items in the resets menu will clear all memory in the printer, while C
current job.
Table 28. Resets menu
ItemValues Explanation
NEW TONER
CARTRIDGE=NONOYES
Change the value to
toner cartridge.
YES
when you first install a non-HP
YES
allows the printer to recognize the new
cartridge, and the printer resets the toner gaug e to full.
RESTORE
FACTORY
SETTINGS
POWERSAVE=ONON
OFF
Press S
the factory (default) settings. This item also clears the input
buffer for th e act ive I/O.
This item turns the PowerSave mode on or off.
POWERSAVE=ON
Minimizes the amount of power consumed by the printer
!
to perform a simple reset and restores most of
ELECT
mode does the following:
when it is idle
Reduces wear on the printer’s electronic components by
!
turning off the backlight on the display
When you send a print job , pr ess a control pan el k e y, open a
paper tray, or open the top cover, the printer automatically
comes out of PowerSave mode.
In the configuration menu, you can set how long the printer
remains idle before it enters PowerSave mode. Turning
PowerSave off is not recommended.
Note
PowerSave turns off the backlight on the display, but the
display is still readable.
ANCEL JOB
clears only the
ENChapter 3 Printer operation 73
Page 76
Service mode
Service mode should be used only by authorized service personnel. The following can be done in
service mode:
Verify and set the page count and serial number. These are shown on the configuration page.
!
Set the cold reset paper size default. (This sets the factory default paper size to either Letter or
!
A4).
Turn the diagnostic functions on or off (fo r software developers only).
!
Clear the event log.
!
Set the interval at which the
!
panel display.
To enter service mode:
PERFORM PRINTER MAINTENANCE
message appears on the control
1While turning on the printer, hold down S
ELECT
and C
ANCEL JOB
until all of the lights on the
control panel are lit.
2Press the right side of the M
key, then press S
ENU
. The message
ELECT
SERVICE MODE
temporarily appears and will reappear when the printer completes the initialization process.
3To exit the service mode, press G
NoteIf
appears in the control panel, the k e ys m ight ha v e b een released too soon, or the wrong k e ys
READY
.
O
were pressed.
NoteBefore replacing the f ormatter or firmware DIMM, print a configur ation page and a men u map to verify
the current printer settings. Use th e information on these pages to reset the customer’ s printer settings.
74 Printer operationEN
Page 77
Service menu
To enter the service menu, see “Service mode” on page 74.
Figure 6.Service menu
Changing settings
The item-count value is changed using a d iff er ent method tha n is used f or other control pan el v alues .
Instead of increasing the entire value by increments, each digit can be selected and modified
individually. The following control panel keys are used to modify the page count value:
S
ELECT
V
-Increases the value of the currently selected digit by
ALUE
– V
ALUE
ENChapter 3 Printer operation 75
Enters any changes to the current digit and
advances the cursor one digit to the right. If the last
digit is currently selected, pressing the S
ELECT
key
wraps the cursor around to the first digit.
one. Pressing V
+ when 9 is the value of the
ALUE
currently selected digit will change the value of the
digit to 0.
Decreases the value of the current ly selected digit by
one. Pressing – V
when 0 is the value of the
ALUE
currently selected digit will change the value of the
digit to 9.
Page 78
Table 29 shows the sequence of keystrokes used to change the page count from a value of 000000
to a value of 0010480.
Table 29. Changing the page count (example)
Key pressDisplayDescription
SERVICE MODE
M
I
TEM
ENU
+
+
SERVICE MENU
PAGES=0
000000 *
Enter the
SERVICE MENU
.
Advance to the first item in the
.
MENU
SERVICE
S
ELECT
S
ELECT
V
+
ALUE
S
ELECT
S
ELECT
V
+
ALUE
(4 presses)
S
ELECT
– V
ALUE
(2 presses)
S
ELECT
(2 presses)
PAGES=0000000 *
PAGES=0000000 *
PAGES=001
0000 *
PAGES=0010000 *
PAGES=0010000 *
PAGES=00104
00 *
PAGES=0010400 *
PAGES=001048
PAGES=0
0 *
010480 *
Advance the cursor one digit to the right.
Advance the cursor one digit to the right.
Increase the value of the third digit by
one.
Enter the change to the third digit and
advance the cursor one digit to the right.
Advance the cursor one digit to the right.
Increase the value of the fifth digit by
four.
Enter the change to the fifth digit and
advance the cursor one digit to the right.
Decrease the value of the sixth digit by
two.
Enter the change to the sixth digit and
advance the cursor one digit to the right
causing the cursor to wrap around to the
first digit.
G
O
Exit.
76 Printer operationEN
Page 79
Page count
The page count that is stored in nonvolatile memory (NVRAM) and is shown on the configuration
page printout represents the number of pages the printer h as printed (exclud ing engine test prints). If
it is necessary to install a new formatter in the printer, the page count must be reset so that it
represents the age of the printer engine rat her than the age of the formatter.
NoteBefore replacing the f ormatter or firmware DIMM, print a configur ation page and a men u map to verify
the current printer settings. Use th e information on these pages to reset the customer’ s printer settings.
Maintenance count
The maintenance count should be reset only after a maintenan ce kit has been installed. For more
information, see page 86.
Maintenance interval
The
MAINTENANCE INTERVAL
service is due for the printer. This is set initially at the factory to 200,000 pages. (For example, the
PERFORM PRINTER MAINTENANCE
installed at 200,114 pages, the message reappears 200,000 pages later, at 400,114 pages.) The
procedure for editing this number is similar to editing the
in the service-mode menu sets the page count interval at which the ne xt
message appears at 200,000 pages. If the printer maintenance kit is
item.
PAGES
Serial number
The printer serial number is stored in NVRAM. If a formatter is replaced, then the printer serial
number must be reentered. T he proced ure for editing this number is similar to editing the
NoteBefore replacing the f ormatter or firmware DIMM, print a configur ation page and a men u map to verify
the current printer settings. Use th e information on these pages to reset the customer’ s printer settings.
PAGES
item.
Cold reset paper
The cold reset paper size is stored in NVRAM. When a printer cold reset is performed, the default
paper size (in the printing menu) is set to the value saved for the cold reset paper size. Possible
values are
countries that use A4 rather than letter-size paper, set the cold reset paper size to A4.
COLD RESET PAPER=LETTER
and
COLD RESET PAPER=A4
. When replacing the formatter in
Diagnostics
This menu item enables or disables the use of the firmware diagnostic features for software
development. Possible values are
diagnostic features are available when the printer is in the online
key.
NoteThe feature above is for software developers only.
ENChapter 3 Printer operation 77
DIAGNOSTICS=OFF*
and
DIAGNOSTICS=ON
. When enabled, the
state by pressing the S
READY
ELECT
Page 80
Clear event log
This item deletes all items that have been recorded in the internal event log.
Top margin
This item can be used to adjust the margin between the top of the page and the top of the printed
image.
NoteAdjust the top margin value in the soft war e applicat ion first. This top m argin value does not affect the
engine test top margin.
Before adjusting the t op margin through the service menu, first ensure the engine test top margin
register is properly adjusted (page 175).
To set the top margin registration value:
1Press the I
2Press the V
3Press the S
key to scroll through the service menu until
TEM
key to increase or decrease the margin.
ALUE
key to save the new margin adjustment.
ELECT
TOP MARGIN=07
appears.
Tray 1 left margin
This item can be used to adjust the margin be tw een the le ft side of the p ages from tr ay 1 and the left
side of the printed image.
1Press the I
2Press the V
3Press the S
key until
TEM
key to increase or decrease the margin.
ALUE
ELECT
TRAY 1 LEFT MARGIN=07
key to save the new margin adjustment.
appears.
Trays 2 and 3 left margin
This item can be used to adjust the margin be tw een the le ft side of the pag es from tr ays 2 and 3 and
the left side of the printed image.
1Press the I
2Press the V
3Press the S
key until
TEM
key to increase or decrease the margin.
ALUE
ELECT
TRAYS 2 AND 3 LEFT MARGIN=07
key to save the new margin adjustment.
appears.
Testing the printer
When you print a configuration page, the printer checks its internal controller and I/O interface, and
then prints a test page. You can review the configuration page printout to verify prop er installation of
such options as paper trays or printer languages. For more information, see page 227.
Engine test
The engine test print can be used to verify that the print engine is functioning correctly. For more
information, see page 190.
78 Printer operationEN
Page 81
Resetting the printer
Cold reset
Cold reset clears all data from the printer memory and sets many of the defaults back to the factory
settings.
CAUTIONPerforming a cold reset resets the HP JetDirect configuration. To avoid making changes to your
configuration, remove the HP JetDirect card before performing a cold reset.
If possible, print a configuration page and a menu map to verify the current printer settings. Use the
information on these pages to reset the customer’s printer settings.
To perform a cold reset:
1Print a configuration page and a menu map.
2Turn on the printer while holding the G
3When
COLD RESET
appears on the control panel display, release the G
key down.
O
key.
O
Clearing NVRAM
This procedure will clean up the NVRAM by removing old areas that are not being used.
1Turn off the printer.
2Hold down the C
3When
CLEANUP NVRAM
ANCEL JOB
key, and then turn on the printer.
appears on the control panel display, release the C
ANCEL JOB
key.
Initialization of NVRAM
Initialization of NVRAM should always be executed immediately after replacing the formatter board.
This procedure aligns the firmware with the formatter. Not initializing NVRAM could result in
deterioration of print quality.
CAUTIONInitializing NVRAM will erase sever al of the memory settings (including page count, printer serial
number, and the event log).
NoteBefore initializing NVRAM, print a configuration page and a menu map to verify the current printer
settings. Use the information on these pages to reset the customer’s printer settings.
To initialize NVRAM
1Print a configuration page and a menu map.
2Turn off the printer.
3Remove all formatter accessories (EIO cards, hard drive, DIMMs, etc.).
4While turning on the printer, hold down S
control panel are lit.
5Press C
display.
6After initializing the NVRAM, use service mode to reenter the settings from the configuration
page.
ENChapter 3 Printer operation 79
ANCEL JOB
, and then S
ELECT
. The
and C
ELECT
NVRAM INIT
ANCEL JOB
message appears on the control panel
until all of the lights on the
Page 82
Initialization of the hard disk
To initialize the hard disk
1Print a configuration page and a menu map.
2Turn off the printer.
3While turning on the printer, hold down S
control panel are lit.
4Press M
5Press S
-, and then V
ENU
.
ELECT
System configuration
MS-DOS system configuration
To communicate properly with the printer, the MS-DOS® environment requires the addition or
modification of mode commands in the AUTOEXEC.BAT file. Add or modify the mode command(s),
depending on the interface configuration, as follows:
Parallel DOS commands
Most IBM- and AT-compatible computers default to a parallel printer port. To ensure that information
is sent to the parallel printer port, type the following MS-DOS command at the MS-DOS prompt or
include it in the Autoexec.bat file:
MODE LPT1: , , P
For MS-DOS version 4.0 and above, type:
ALUE
and C
ELECT
-.
ANCEL JOB
until all of the lights on the
MODE LPT1: , , B
NoteThis example assumes that you are using parallel printer port LPT1. If you are using LPT2 or LPT3,
replace LPT1 in the example with the printer port that you are using.
Since the mode command is an external MS-DOS command (a program named mode.com is run
when the mode command is invoked), the program file must be contained in the root directory, or in
a directory specified in a preceding path command in the Autoexec.bat file.
After changing the Autoexec.bat file, restart the computer to initiate the changes.
To maintain superior print quality and performance, thoroughly clean the printer and the paperhandling accessories:
after printing approximately 10 ,000 pages.
!
whenever print quality problems occur.
!
Also, run a cleaning page every time you change the toner cartridge.
Clean the outside surfaces of the printer and accessories with a water-dampened cloth. Clean the
inside parts as indicated in table 30 on page 83. Observe the warning and caution below.
WARNING!Before beginning these steps, turn the printer off and unplug all power cords to avoid shock hazard.
Be careful when cleaning around the fusing assembly area. It might be hot.
CAUTIONTo avoid permanent damage to the toner cartridge, do not use ammonia-based cleaners on or around
the printer.
Do not touch the transfer roller. Skin oils on the roller can cau se print quality d efects. If toner gets on
clothing, wipe it off with a dry cloth and wash the clothes in cold water. Hot water sets toner into f abric.
Figure 7.Location of the transfer roller – Do Not Touch!
82 Printer maintenanceEN
Page 85
Table 30. Cleaning the printer
ComponentCleaning method/notes
Outside coversUse a water-dampened cloth. Do not use solvents or
ammonia-based cleaners.
InsideWith a dry, lint-free cloth, wipe any dust, spilled toner, and
paper particles from the paper path area, the registration
roller, and the toner cartridge cavity. Do not touch the
transfer roller with bare hands.
Paper pickup, feed, and
separation rollers
Tray 1 separation padUse a dry, lint-free cloth.
Registration rollerUse a dry, lint-free cloth.
Transfer rollerUse a dry, lint-free cloth. DO NOT TOUCH the transfer
FuserUse a water-dampened, lint-free cloth.
Use a water-dampened, lint-f ree cloth.
roller.
ENChapter 4 Printer maintenance 83
Page 86
Using the printer cleaning page
If toner specks appear on the front or back side of print jobs, follow the procedure below.
From the printer control panel, do the following:
1Press M
2Press I
3Press S
until
ENU
TEM
ELECT
PRINT QUALITY MENU
until
CREATE CLEANING PAGE
to create the cleaning page.
appears.
appears.
4Follow the instructions on the cleaning page to complete the cleaning process.
NoteIn order for the cleaning page to work correctly, print the page on copier-grade paper (not bond or
rough paper).
You might need to create and process a cleaning page more than once. When toner has been
cleaned from the fuser assembly, shiny black spots will appear on the page’s black strip. If white
spots appear on the black strip, create another cleaning page.
To ensure good print quality with certain types of paper, use the cleaning page every time the toner
cartridge is replaced. If the cleaning page is frequently needed, try a different type of paper.
Using the auto-cleaning page
The auto-cleaning page feature helps keep the fuser roller s clean, which maintains excellent output
quality. The auto-cleaning page feature is accessible through the control panel and is supported
through Web JetAdmin, as well. Once set up, the printer runs a cleaning page through the printer as
a separate job at the frequency requested with no further user intervention. The settings can be
changed or the feature can be turned off at any time.
NoteOnce the auto-cleaning page f eature is enabled, the printer automatica lly pulls plain letter- or A4-sized
media from a tra y. If the paper size or types are not av ailab le in the printer, a message appears in the
control panel display requesti ng the user to load media into the printer.
To override a paper load message, press G
, and then answer the questions on the control panel
O
display.
To set up the auto-cleaning page:
1Press M
2Press I
3Press V
4Press V
5Press I
size to be used for cleaning.
6Press S
NoteThe auto cleaning page takes about 2.5 minutes to process.
until
ENU
TEM
ALUE
ALUE
TEM
ELECT
PRINT QUALITY MENU
until
AUTO CLEANING PAGE
+ until
appears, and then press S
=ON
+ to select the auto cleaning frequency, and then press S
until
CLEANING PAGE SIZE=LETTER
to save the auto-cleaning settings.
appears.
appears.
.
ELECT
or A4, and then press V
.
ELECT
+ to select the paper
ALUE
84 Printer maintenanceEN
Page 87
Cleaning spilled toner
Defectiv e or w orn out toner cartridges can dev e lop leaks. Also, after a jam has occurred, there m ight
be some toner remaining on the rollers and guides inside the printer. The pages that print
immediately after the jam might pick up this toner.
Clean spilled toner with a cloth dampened with cold water. Do not touch the transfer roller with the
damp cloth or with your fingers. Do not use a vacuum cleaner unless it is equipped with a micro-fine
particle filter.
ENChapter 4 Printer maintenance 85
Page 88
Performing printer maintenance
The printer maintenance cycle for this printer is every 200,000 pages. The kit contains the following
replacement parts:
one fuser
!
one transfer roller
!
one transfer roller tool
!
one pickup roller (for tray 1)
!
six feed and separation rollers (for trays 2, 3, and 4)
!
one pair of disposable glo ves
!
instructions
!
See the instructions included in the kit for detailed replacement procedures.
The maintenance kit can be ordered from the Customer Services and Support Center. To order the
The maintenance page count should be reset only after a main tenance kit has been installed.
This resets the maintenance counter so that the me ss ag e
appear after another 200,000 pages (default).
1Hold down the - I
TEM
and - V
ALUE
keys.
2Turn the printer on.
3Wait for
RESET MAINTENANCE COUNT
to appear and then release both keys.
PERFORM PRINTER MAINTENANCE
will
86 Printer maintenanceEN
Page 89
Expected life of components
The following table shows the expected life of certain components in the printer. To order parts, see
chapter 8.
Table 32. Life of components
No.Part namePart numberExpected life
In this circuit, the AC power input from the power receptacle is converted into DC power. The DC
power is supplied to the loads.
The AC pow er is supplied to the lo w- v olt age po wer supply circuit in the en gine controller b oard when
the power switch (SW1) is turned on.
The AC power is converted into +24 VDC, +5 VDC, and +3.3 VDC in the circuit. The +24 VDC is
supplied to the main motor, scanner motor, solen oids, clutches , and to the high-v o ltage po we r supply
circuit. The +5 VDC is supplied to the laser and formatter, while +3.3 VDC is supplied to the sensors
and ICs on the engine controller board.
The +24 VDC is divided into +24 VA, which is constantly supplied from the low-voltage power supply
circuit, and +24 VB, which is interrupted when the interlock switch (SW101) is turned off by opening
the top cover. The +24 VB is supplied to the high-voltage power supply circuit on the engine
controller board and relay (RL102). It also functions as a door-open detection signal (/DOPEN), so
that the CPU detects an open door.
Figure 8.Low-voltage power supply circuit
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Overcurrent/overvoltage protection
If a short-circuit or other problem on the load side causes an excessive current flow or generates
abnormal voltage, the overcurrent/overvoltage protection systems automatically cut off the output
voltage to protect the power supply circuit.
If the overcurrent or overvoltage protection system are activated and the power supply circuit does
not generate DC vo lt age, it is necessary to turn the power off, correct the problem, and then turn the
printer on again.
The circuit has two fuses (FU1, FU2), which break and cut off the output voltage if overcurrent flows
through the AC line.
Fuser over-temperature protection
The fusing heater safety circuit is locat ed on the eng ine controlle r board and const antly monito rs the
fusing temperature.
To protect the fuser from excessive temperatures, the printer has the following three protective
functions:
The CPU monitors the voltage of the FSRTH1 and FSRTH2 thermistor signals. If the fuser
!
temperature reaches 240° C (464° F), then the CPU turns off the relay (RL101) to interrupt the
power to the fusing heater.
If the temperature of the fusing heater continues to rise abnormally and the temperature of the
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thermal switch (TP101) exceeds about 250° C (482° F), TP101 opens up to cut off the power
supply to the fusing heater.
The power supply on the coil side of RL101 and RL102 is connected to +24 VB. When the top
!
cover is opened, the power supply to RL101 and RL102 is cut off and the relay is turned off.
92 Theory of operationEN
Page 95
High-voltage power distribution
Figure 9.Engine controller board
In response to the instructions from the microprocessor (CPU:IC502) on the engine controller board,
the high-voltage power supply circuit applies high voltage to the primary charging roller, developing
cylinder, transfer roller, and the fuser film unit.
The circuit also detects the toner level and the presence or absence of the toner cartridge.
ENChapter 5 Theory of operation 93
Page 96
Toner-cartridge detection
This printer has cartridge detection and toner-level detection.
For the cartridge detection, the CPU checks the voltage of the cartridge detection signal (CRGSNS),
which is a feedback signal for the primary charging. The CPU checks the voltage of the CRGSNS
signal several times while the primary charging AC bias is applied to the primary charging roller.
When the average of the voltage is 1 V or less, the CPU recognizes a "cartridge out" situation.
Cartridge memory
This memory is built-in EEPROM in the cartridge, so that the printer is capable of detecting the
cartridge conditions.
Read/write of the cartridge memory is performed by the memory controller board through the
antenna unit. The cartridge information read by the memory controller is updated by the engine
controller and written to the memory. The read/write of the memory is implemented when the
memory controller board receives a command from the engine controller board.
The engine controller instructs the memory controller to perform read/write at the following timing.
Reading timing
When the power is turned on
!
When the door is closed
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When the engine controller receives a command from the formatter
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Writing timing
When printing is completed
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When the engine controller receives a command from the formatter
!
The memory data sent from the memory controller also contains the error status that has occurred
during read/write operation. When error status is sent, the engine controller attempts to read the
operation four times. If the error status is not cleared after the operation, the engine contro ller
determines one of the following error conditions: sub-CPU failure, memory data abnormality, or
memory access abnormality.
CAUTIONDo not remove the toner cartridge when the top cover interlock is overridden. Cartridge memory will
be disabled.
Figure 10.Cartridg e memory
94 Theory of operationEN
Page 97
Engine controller system
The following systems and functions are controlled by the engine controller board:
DC power distribution (+3.3 V DC, +5 V DC, +24 VA)
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Laser and scanner drive
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Paper-motion monitoring and control (photosensors and flags)
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Clutches (tray pickup and tray 1 feed)
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Engine test
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Motors (main drive, scanner, and fans)
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Printer operations are controlled by the CPU on the engine controller board. When you press the
power button, the printer enters standby mode until it receives a print command or image data. The
CPU then sends the signals to drive internal components, such as laser diodes, motors, and
solenoids.
Figure 11.Engine controller board
ENChapter 5 Theory of operation 95
Page 98
Engine controller board inputs and outputs
Figure 12.Engine controller board I/O (1 of 5)
96 Theory of operationEN
Page 99
Figure 13.Engine controller board I/O (2 of 5)
ENChapter 5 Theory of operation 97
Page 100
Figure 14.Engine controller board I/O (3 of 5)
98 Theory of operationEN
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