hp LaserJet
1010 1012 1015
series printer
ser vice
hp LaserJet 1010 series printer
Service Manual
Copyright Information
© 2003 Copyright Hewlett-Packard
Development Company, LP
Reproduction, adaptations, or translation
without prior written permission is prohibited
except as allowed under copyright laws.
The information contained in this document
is subject to change without notice.
The only warranties for HP products and
services are set forth in the express
warranty statements accompanying such
products and services. Nothing herein
should be construed as constituting an
additional warranty. HP shall not be liable
for technical or editorial errors or omissions
contained herein.
Part number Q2460-90928
Edition 1, 8/2003
Information regarding FCC Class B, Parts
15 and 68 requirements can be found in the
user guide.
NOTICE TO U.S. GOVERNMENT USERS:
RESTRICTED RIGHTS COMMERCIAL
COMPUTER SOFTWARE: “Use,
duplication, or disclosure by the
Government is subject to restrictions as set
forth in subparagraph (c) (1)(ii) of the Rights
in Technical Data Clause at DFARS 52.227-
7013.”
Trademark Credits
Microsoft, Windows, and MS-DOS are U.S.
registered trademarks of Microsoft
Corporation.
TrueType is a U.S. trademark of Apple
Computer, Inc.
All other products mentioned herein may be
trademarks of their respective companies.
Safety Information
WARNING!
Potential Shock Hazard
Always follow basic safety precautions
when using this product to reduce risk of
injury from fire or electric shock.
Read and understand all instructions in the
user guide.
Observe all warnings and instructions
marked on the product.
Use only a grounded electrical outlet when
connecting the HP LaserJet 1010 series
printer to a power source. If you don’t know
whether the outlet is grounded, check with a
qualified electrician.
Do not touch the contacts on the end of any
of the sockets on the HP LaserJet 1010
series printer. Replace damaged cords
immediately.
Unplug this product from wall outlets before
cleaning.
Do not install or use this product near water
or when you are wet.
Install the product securely on a stable
surface.
Install the product in a protected location
where no one can step on or trip over the
power cord and the power cord will not be
damaged.
If the product does not operate normally,
see the online user guide.
Refer all servicing questions to qualified
personnel.
Table of contents
1 Product Information
HP LaserJet 1010 series has three product configurations......................................................2
The HP LaserJet 1010, 1012, and 1015.............................................................................2
Introduction...............................................................................................................................3
Overview of product..................................................................................................................4
Model and serial numbers..................................................................................................4
Hardware description..........................................................................................................5
Firmware description .........................................................................................................6
Product Specifications..............................................................................................................7
HEWLETT-PACKARD LIMITED WARRANTY STATEMENT ..................................................9
Extended warranty..................................................................................................................10
Print cartridge information ......................................................................................................11
Refilled print cartridges ...................................................................................................11
Recycling print cartridges ................................................................................................11
Declaration of Conformity.......................................................................................................12
For Regulatory Topics ONLY, contact:...................................................................................13
Laser safety statement.....................................................................................................13
Canadian DOC regulations...............................................................................................13
Korean EMI statement......................................................................................................13
Laser statement for Finland..............................................................................................14
2 Installation and Operation
Operating environment ..........................................................................................................16
Identifying the control panel components...............................................................................17
Product media specifications..................................................................................................18
Supported media sizes (printer).......................................................................................18
Guidelines for using media.....................................................................................................19
Paper and Transparencies ..............................................................................................19
Common media problems table .......................................................................................19
Labels ..............................................................................................................................19
Envelopes ........................................................................................................................20
Card stock and heavy media ...........................................................................................20
Loading media .......................................................................................................................22
Loading media to print......................................................................................................22
3 Maintenance
Life expectancies of parts that wear ......................................................................................24
Cleaning the product...............................................................................................................25
Cleaning the print path.....................................................................................................25
Cleaning the print cartridge area......................................................................................26
Cleaning the printer pickup roller .....................................................................................27
User-replaceable parts ...........................................................................................................29
Replacing the printer pickup roller ...................................................................................29
Replacing the printer separation pad................................................................................31
ENWW iii
Replacing the main input tray (paper pickup tray assembly)............................................33
Replacing the output tray extension (delivery tray assembly)..........................................34
4 Operational overview
Basic functions........................................................................................................................36
Formatter system....................................................................................................................37
Central processing unit ....................................................................................................37
RAM..................................................................................................................................37
Universal Serial Bus interface..........................................................................................37
Parallel interface (HP LaserJet 1015 only).......................................................................37
Control panel....................................................................................................................37
Draft mode .......................................................................................................................38
MEt................................................................................................................................... 38
Enhanced I/O ...................................................................................................................38
PJL overview ...................................................................................................................38
Printer functions......................................................................................................................39
Engine control system (engine control unit and power assembly)...................................39
Image formation system...................................................................................................43
Printer paper feed system................................................................................................44
Jam detection ..................................................................................................................46
Solenoid, sensors, and switches......................................................................................46
Basic sequence of operation (formatter-to-printer)...........................................................47
5 Removal and replacement
Removal and replacement strategy........................................................................................52
Required tools .................................................................................................................52
Before performing service................................................................................................52
Print cartridge ..................................................................................................................52
Differences between the series models............................................................................53
Part removal order ...........................................................................................................53
User-replaceable parts ...........................................................................................................55
Replacing the printer pickup roller ...................................................................................55
Replacing the printer separation pad................................................................................57
Replacing the main input tray (paper pick-up tray assembly)...........................................59
Replacing the output tray extension (delivery tray assembly)..........................................60
Covers..................................................................................................................................... 61
Right side cover................................................................................................................62
Left side cover..................................................................................................................65
Print cartridge access door, fuser cover, and rear panel..................................................65
Front cover.......................................................................................................................68
Internal assemblies.................................................................................................................70
Transfer roller assembly...................................................................................................70
Engine power assembly...................................................................................................72
Fuser (fixing) assembly....................................................................................................73
Paper pickup assembly....................................................................................................75
Engine control unit assembly............................................................................................76
Laser scanner assembly...................................................................................................78
6 Troubleshooting
Basic troubleshooting..............................................................................................................82
Control panel power-on functions...........................................................................................84
Power-on Functions: Time Ranges..................................................................................84
Control Panel Pages...............................................................................................................86
Control Panel Pages: Time Ranges.................................................................................86
iv ENWW
Control Panel Lights................................................................................................................87
Control Panel Light Patterns.............................................................................................87
Fatal Errors.......................................................................................................................91
Image troubleshooting............................................................................................................92
Print cartridge problems...................................................................................................92
Solving image-quality problems .......................................................................................92
Solving paper-feed problems..................................................................................................99
Solving print paper-feed problems....................................................................................99
Functional checks.................................................................................................................103
Half self-test functional check.........................................................................................103
Drum rotation functional check ......................................................................................105
High-voltage contacts check...........................................................................................105
Troubleshooting tools ...........................................................................................................107
Repetitive image defect ruler..........................................................................................107
Circuit diagram ..............................................................................................................108
Solenoid, sensors, and switches...........................................................................................109
7 Parts and diagrams
Ordering parts and supplies .................................................................................................112
Parts ..............................................................................................................................112
Related documentation and software ............................................................................112
Parts that wear .............................................................................................................112
Accessories and consumables ............................................................................................113
Common hardware ........................................................................................................114
How to use the parts lists and diagrams ........................................................................114
Field-replaceable units .........................................................................................................115
Alphabetical parts list............................................................................................................118
Numerical parts list...............................................................................................................119
Index
ENWW v
vi ENWW
List of tables
Table 1-1. Physical specifications.............................................................................................7
Table 1-2. Environmental specifications ..................................................................................7
Table 1-3. Performance of HP LaserJet 1010..........................................................................7
Table 1-4. Performance of HP LaserJet 1012 and 1015..........................................................7
Table 1-5. Electrical specifications............................................................................................7
Table 2-1. Media types...........................................................................................................18
Table 3-1. Life expectancies of parts that wear......................................................................24
Table 4-1. Basic sequence of operation.................................................................................47
Table 6-1. Basic troubleshooting ..........................................................................................82
Table 6-2. Solving print image-quality problems.....................................................................93
Table 6-3. Solving print paper-feed problems.........................................................................99
Table 7-1. Technical support websites ................................................................................112
Table 7-2. Accessories ........................................................................................................113
Table 7-3. Replaceable Assemblies ....................................................................................116
Table 7-4. Alphabetical parts list...........................................................................................118
Table 7-5. Numerical parts list..............................................................................................119
ENWW vii
viii ENWW
List of figures
Figure 1-1. Model and serial number labels..............................................................................4
Figure 1-2. Front and side view................................................................................................4
Figure 1-3. Back and side view.................................................................................................5
Figure 2-1. Dimensions of product..........................................................................................16
Figure 2-2. Control panel lights and buttons...........................................................................17
Figure 4-1. Basic configuration...............................................................................................36
Figure 4-2. Printer functional block diagram...........................................................................39
Figure 4-3. Laser/scanner operation.......................................................................................41
Figure 4-4. High-voltage power supply circuit.........................................................................42
Figure 4-5. Image formation block diagram............................................................................43
Figure 4-6. Printer paper path ................................................................................................45
Figure 4-7. Solenoid, photosensors, and switches.................................................................47
Figure 4-8. Printer timing diagram ........................................................................................49
Figure 5-1. Removing the print cartridge................................................................................53
Figure 5-2. HP LaserJet 1015 parallel port.............................................................................53
Figure 5-3. Product teardown tree..........................................................................................54
Figure 5-4. Removing the right side cover (1 of 5)..................................................................62
Figure 5-5. Removing the right side cover (2 of 5)..................................................................62
Figure 5-6. Removing the right side cover (3 of 5)..................................................................63
Figure 5-7. Removing the right side cover (4 of 5)..................................................................64
Figure 5-8. Removing the right side cover (5 of 5)..................................................................64
Figure 5-9. Removing the rear panel (1 of 5)..........................................................................65
Figure 5-10. Removing the rear panel (2 of 5)........................................................................66
Figure 5-11. Removing the rear panel (3 of 5)........................................................................66
Figure 5-12. Removing the rear panel (4 of 5)........................................................................67
Figure 5-13. Removing the rear panel (5 of 5)........................................................................67
Figure 5-14. Removing the front cover (1 of 3).......................................................................68
Figure 5-15. Removing the front cover (2 of 3).......................................................................68
Figure 5-16. Removing the front cover (3 of 3).......................................................................69
Figure 5-17. Removing the transfer roller (1 of 3)...................................................................70
Figure 5-18. Removing the transfer roller (2 of 3)...................................................................71
Figure 5-19. Removing the transfer roller (3 of 3)...................................................................72
Figure 5-20. Removing the engine power assembly (1 of 2)..................................................73
Figure 5-21. Removing the engine power assembly (2 of 2)..................................................73
Figure 5-22. Removing the fuser (fixing) assembly................................................................74
Figure 5-23. Fragile tab on fuser assembly............................................................................75
Figure 5-24. Removing the paper pickup assembly................................................................75
Figure 5-25. Removing the ECU assembly (1 of 5)................................................................76
Figure 5-26. Removing the ECU assembly (2 of 5)................................................................76
Figure 5-27. Removing the ECU assembly (3 of 5)................................................................77
Figure 5-28. Removing the ECU assembly (4 of 5)................................................................77
Figure 5-29. Removing the ECU assembly (5 of 5)................................................................78
Figure 5-30. Removing the laser scanner assembly...............................................................79
Figure 6-1. Control panel lights legend...................................................................................87
Figure 6-2. Check the fuser connections..............................................................................104
Figure 6-3. Check the fuser connections..............................................................................104
ENWW ix
Figure 6-4. Print cartridge high-voltage contacts..................................................................106
Figure 6-5. Printer high-voltage contacts..............................................................................106
Figure 6-6. Repetitive image defect ruler..............................................................................107
Figure 6-7. Circuit diagram...................................................................................................108
Figure 6-8. Solenoid, photosensors, and switches...............................................................109
Figure 7-1. All Models ..........................................................................................................115
Figure 7-2. Exploded View: Field Replaceable Units ...........................................................116
x ENWW
Product Information
This chapter provides general product information for HP LaserJet 1010 series printers.
HP LaserJet 1010 series has three product configurations......................................................2
The HP LaserJet 1010, 1012, and 1015.............................................................................2
Introduction...............................................................................................................................3
Overview of product..................................................................................................................4
Model and serial numbers..................................................................................................4
Hardware description..........................................................................................................5
Firmware description .........................................................................................................6
Product Specifications..............................................................................................................7
HEWLETT-PACKARD LIMITED WARRANTY STATEMENT ..................................................9
Extended warranty..................................................................................................................10
Print cartridge information ......................................................................................................11
Refilled print cartridges ...................................................................................................11
Recycling print cartridges ................................................................................................11
Declaration of Conformity.......................................................................................................12
For Regulatory Topics ONLY, contact:...................................................................................13
Laser safety statement.....................................................................................................13
Canadian DOC regulations...............................................................................................13
Korean EMI statement......................................................................................................13
Laser statement for Finland..............................................................................................14
ENWW 1
HP LaserJet 1010 series has three product configurations
The HP LaserJet 1010, 1012, and 1015
The HP LaserJet 1010 is the base model of the series. It offers the following:
● Prints up to 12 pages per minute.
● 8 seconds to first page out.
● 600 x 600 dpi.
● 150 sheet paper capacity (20 lb).
● A priority input tray.
● A horizontal paper feed path.
● 8 MB of RAM (not expandable).
● A host-based driver.
● A USB port
The HP LaserJet 1012 is the mid-range model of the series. It offers all the features of the
HP LaserJet 1010, plus the following:
● Prints up to 14 pages per minute A4 (15 letter).
● 1200 x 1200 dpi effective output quality [600 x 600 x 2 dpi with HP Resolution
Enhancement (REt) technology.
● Networking support through HP Jetdirect devices
The HP LaserJet 1015 is the top model of the series. It offers all the features of the HP
LaserJet 1012, plus the following:
● 16 MB of RAM (not expandable).
● A host-based driver and HP's PCL 5e driver.
● A USB port and a parallel port
2 Chapter 1 Product Information ENWW
Introduction
The HP LaserJet 1010 series is designed to print documents easily with the laser quality you
have come to expect from an HP LaserJet product.
ENWW Introduction 3
Overview of product
Model and serial numbers
The model number and serial number are listed on an identification label located on the back
of the product.
The serial number contains information about the country/region of origin, revision level,
production code, and production number of the product.
The label also contains power rating and regulatory information.
Figure 1-1. Model and serial number labels
10
9
8
7
Figure 1-2. Front and side view
1 Attention light
2 Ready light
3 Go light
4 Go button
5 Cancel job button
6
Print cartridge door
7
Priority feed slot
8
Main input tray
9 Tray cover (only with HP LaserJet 1012 printer and HP LaserJet 1015 printer in some countries/
regions)
10 Output bin
1
2
3
4
5
6
4 Chapter 1 Product Information ENWW
Figure 1-3. Back and side view
11 USB port
12
Parallel port (HP LaserJet 1015 printer only)
13
On/off switch
14
Power receptacle
15 Separation pad
11
12
13
14
15
Hardware description
The HP LaserJet 1010 product provides 600 x 600 dpi printing. The HP LaserJet 1012, and
1015 offer 600 x 600 x 2 dpi printing (effectively 1200 dot per inch (dpi) using HP REt
technology).
The product prints at 12 pages per minute (HP LaserJet 1010) or 15 ppm for letter-size paper
and 14 ppm for A4-size paper (HP LaserJet 1012 and HP LaserJet 1015). With 600 dpi
printing for the HP LaserJet 1010 printer and an effective 1200 dpi printing resolution for the
other models, the product has exceptional text and graphics print quality. The simple control
panel and improved paper handling make this product very easy to use.
The main input tray has a 150-sheet (20 lb paper) capacity for continuous, multiple-page
printing. The priority input tray is used for manual feeding single sheets of most
recommended media and will hold up to ten sheets of 20 lb paper. Both trays are centerjustified for all supported paper sizes. The output bin holds up to 125 sheets of 20 lb paper.
The product has a very fast first-page-out, at less than eight seconds. The base memory
contains 8 MB of RAM, and an embedded 133 MHz processor.
The print engine has an average duty cycle of 1,000 pages per month (7,000 peak). The
standard toner life is 2,000 pages with 5 percent toner coverage.
ENWW Overview of product 5
Firmware description
The firmware in the product includes:
● Host based printing
● PCL Level 5e (HP LaserJet 1015 printer)
● EconoMode functionality
The 1012 and 1015 firmware has Resolution Enhancement technology (REt).
6 Chapter 1 Product Information ENWW
Product Specifications
Table 1-1. Physical specifications
Product Height Depth Width Weight
physical
dimensions
208 mm
(8.2 in)
230 mm
(9.1 in)
Table 1-2. Environmental specifications
Category Specification
Operating environment (unit plugged into an AC
outlet)
Storage environment (unit not plugged into an AC
outlet)
● Temperature: 10° to 32.5° C (50° to 90.5° F)
● Humidity: 20 to 80 percent relative humidity
(no condensation)
● Temperature: 0° to 40° C (32° to 104° F)
● Humidity: 10 to 80 percent relative humidity
(no condensation)
Table 1-3. Performance of HP LaserJet 1010
Item Value
Print resolution
Normal black and white 600 by 600 dpi
370 mm
(14.6 in)
5.9 kg
(13 lbs)
Print speed
A4, black and white 12 ppm
Table 1-4. Performance of HP LaserJet 1012 and 1015
Item Value
Print resolution
Normal black and white 600 by 600 x 2 (effective 1200 dpi resolution
using HP REt technology) dpi
Print speed
A4, black and white 14 ppm
Table 1-5. Electrical specifications
Item 110-volt models 220-volt models
Power supply 110 to 127 V (+/- 10 %) 220 to 240 V (+/- 10 %)
50 to 60 Hz (+/- 2 Hz) 50 to 60 Hz (+/- 2 Hz)
ENWW Product Specifications 7
Item 110-volt models 220-volt models
Power consumption (typical)
During printing 250 W (average) 250 W (average)
During standby 2 W (average) 2 W (average)
Power Save mode 2 W (average) 2 W (average)
Off mode 0 W (average) 0 W (average)
Heat output
During printing X BTU/hr X BTU/hr
Note
WARNING!
Note
Minimum recommended circuit
capacity
4.5 A 2.3 A
Values subject to change. See http://www.hp.com/support/lj1010 for current information.
Power sources are not interchangeable.
Activity level Operator (<1m) Bystander (1m) Sound power
Active
Idle
L
56 dB (A) L
pAm
L
N/A dB (A)
pAm
(inaudible)
48 dB (A) L
pAm
L
N/A dB (A)
pAm
(inaudible)
6.1 Bels (A)
WAd
L
N/A Bels (A)
WAd
(inaudible)
Values subject to change. See http://www.hp.com/support/lj1010 for current information.
During other operations, acoustic emissions may vary.
8 Chapter 1 Product Information ENWW
HEWLETT-PACKARD LIMITED WARRANTY STATEMENT
HP PRODUCT
HP LaserJet 1010 series (1010, 1012, 1015)
HP warrants to you, the end-user customer, that HP hardware and accessories will be free from defects in
materials and workmanship after the date of purchase, for the period specified above. If HP receives notice of
such defects during the warranty period, HP will, at its option, either repair or replace products which prove to be
defective. Replacement products may be either new or equivalent in performance to new.
HP warrants to you that HP software will not fail to execute its programming instructions after the date of
purchase, for the period specified above, due to defects in material and workmanship when properly installed and
used. If HP receives notice of such defects during the warranty period, HP will replace software which does not
execute its programming instructions due to such defects.
HP does not warrant that the operation of HP products will be uninterrupted or error free. If HP is unable, within a
reasonable time, to repair or replace any product to a condition as warranted, you will be entitled to a refund of the
purchase price upon prompt return of the product.
HP products may contain remanufactured parts equivalent to new in performance or may have been subject to
incidental use.
Warranty does not apply to defects resulting from (a) improper or inadequate maintenance or calibration, (b)
software, interfacing, parts or supplies not supplied by HP, (c) unauthorized modification or misuse, (d) operation
outside of the published environmental specifications for the product, or (e) improper site preparation or
maintenance.
TO THE EXTENT ALLOWED BY LOCAL LAW, THE ABOVE WARRANTIES ARE EXCLUSIVE AND NO OTHER
WARRANTY OR CONDITION, WHETHER WRITTEN OR ORAL, IS EXPRESSED OR IMPLIED AND HP
SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OR CONDITIONS OF MERCHANTABILITY,
SATISFACTORY QUALITY, AND FITNESS FOR A PARTICULAR PURPOSE. Some countries/regions, states or
provinces do not allow limitations on the duration of an implied warranty, so the above limitation or exclusion might
not apply to you. This warranty gives you specific legal rights and you might also have other rights that vary from
country/region to country/region, state to state, or province to province. HP's limited warranty is valid in any
country/region or locality where HP has a support presence for this product and where HP has marketed this
product. The level of warranty service you receive may vary according to local standards. HP will not alter form, fit,
or function of the product to make it operate in a country/region for which it was never intended to function for
legal or regulatory reasons.
TO THE EXTENT ALLOWED BY LOCAL LAW, THE REMEDIES IN THIS WARRANTY STATEMENT ARE YOUR
SOLE AND EXCLUSIVE REMEDIES. EXCEPT AS INDICATED ABOVE, IN NO EVENT WILL HP OR ITS
SUPPLIERS BE LIABLE FOR LOSS OF DATA OR FOR DIRECT, SPECIAL, INCIDENTAL, CONSEQUENTIAL
(INCLUDING LOST PROFIT OR DATA), OR OTHER DAMAGE, WHETHER BASED IN CONTRACT, TORT, OR
OTHERWISE. Some countries/regions, states or provinces do not allow the exclusion or limitation of incidental or
consequential damages, so the above limitation or exclusion may not apply to you.
THE WARRANTY TERMS CONTAINED IN THIS STATEMENT, EXCEPT TO THE EXTENT LAWFULLY
PERMITTED, DO NOT EXCLUDE, RESTRICT OR MODIFY AND ARE IN ADDITION TO THE MANDATORY
STATUTORY RIGHTS APPLICABLE TO THE SALE OF THIS PRODUCT TO YOU.
DURATION OF LIMITED WARRANTY
One year from date of purchase.
ENWW HEWLETT-PACKARD LIMITED WARRANTY STATEMENT 9
Extended warranty
In most countries/regions, HP Care Pack provides additional coverage, beyond standard
warranty for the HP device and for all HP-supplied internal components. This hardware
maintenance can uplift the standard warranty, for example, from next-day to same-day
service, and/or extend it up to 5 years. The HP Care Pack can provide Express Exchange or
onsite service. For more information, see the support flyer that came with your device for the
appropriate phone numbers and information.
10 Chapter 1 Product Information ENWW
Print cartridge information
The print cartridge is designed to simplify replacement of the major consumable parts. The
print cartridge contains the printing mechanism and a supply of toner.
At 5 percent page coverage, a standard print cartridge will print approximately 2,000 pages.
However, a cartridge should print more pages if it regularly prints pages with less coverage,
such as short memos. The cartridge might print fewer pages if heavy or bold print is used.
For best results, always use a print cartridge before the expiration date stamped on the
cartridge box.
Refilled print cartridges
While Hewlett-Packard does not prohibit the use of refilled print cartridges during the
warranty period or while the product is under a maintenance contract, it is not recommended
for the following reasons:
● Repairs resulting from the use of refilled cartridges are not covered under Hewlett-
Packard warranty or maintenance contracts.
● Hewlett-Packard has no control or process to ensure that a refilled 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 product from using different toner
formulations found in refilled cartridges.
● The print quality of HP LaserJet print cartridges influences the customer’s perception of
the product. Hewlett-Packard has no control over the actual print quality of a refilled
cartridge.
● Parts that are critical to print quality may not be replaced when the cartridge is refilled
with toner.
Recycling print cartridges
In order to reduce waste, Hewlett-Packard offers a recycling program. 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 (within the United States). To join
this recycling effort, follow the instructions inside the print cartridge box. Refer to
http://www.hp.com/recycle for more information.
ENWW Print cartridge information 11
Declaration of Conformity
Declaration of Conformity
according to ISO/IEC Guide 22 and EN 45014
Manufacturer Name: Hewlett-Packard Company
Manufacturer Address: 11311 Chinden Boulevard
Boise, , Idaho 83714-1021, USA
declares that the product
Product Name: HP LaserJet 1010 Series Printer
Product Number: Q2460A, Q2461A, Q2462A, (Regulatory Model Number: BOISB-0207-00)
Product Options: ALL
conforms to the following Product Specifications:
Safety: IEC 60950:1999 / EN 60950:2000
EMC:
Supplementary Information
The product herewith complies with the requirements of the following EMC Directive 89/336/EEC and the Low Voltage Directive 73/23/EEC,
and carries the CE-marking accordingly.
1) The product was tested in a typical configuration with Hewlett-Packard Personal Computer Systems.
2) This Device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause
harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
3) For regulatory purposes, this product is assigned a Regulatory model number. This number should not be confused with the marketing
name (HP LaserJet 1010) or the product numbers (Q2460A, Q2461A, Q2462A).
For regulatory topics only, contact:
Australia Contact
European Contact Your Local Hewlett-Packard Sales and Service Office or Hewlett-Packard Gmbh, Department HQ-TRE / Standards
U.S.A. Contact
IEC 60825-1:1993 +A1/ EN 60825-1:1994+A11 (Class 1 Laser/LED Product)
GB4943:1995
CISPR 22:1997/ EN 55022:1998 Class B
EN 61000-3-2:1995/A14
EN 61000-3-3:1995
EN 55024:1998
FCC Title 47 CFR, Part 15 Class B2) / ICES-003, Issue 3
AS / NZS 3548:1995 +A1 +A2 / GB9254:1998
Product Regulations Manager
Boise, Idaho 83707-0015, USA
Product Regulations Manager, Hewlett-Packard Australia, Ltd. 31-41 Joseph Street, Blackburn, Victoria 3130,
Australia.
Europe, Herrenberger Strasse 140, Böblingen, D-71034, (+49-7031-14-3143)
Product Relations Manager, Hewlett-Packard Company PO Box 15, Mail Stop 160 Boise, ID 83707-0015, U.S.A.
(208-396-6000)
1
PO Box 15 Mail Stop 160
(208-396-6000)
April 1, 2003
12 Chapter 1 Product Information ENWW
For Regulatory Topics ONLY, contact:
Laser safety statement
The Center for Devices and Radiological Health (CDRH) of the U.S. Food and Drug
Administration has implemented regulations for laser products manufactured since August 1,
1976. Compliance is mandatory for products marketed in the United States. The printer is
certified as a “Class 1” laser product under the U.S. Department of Health and Human
Services (DHHS) Radiation Performance Standard according to the Radiation Control for
Health and Safety Act of 1968.
Since radiation emitted inside the printer is completely confined within protective housings
and external covers, the laser beam cannot escape during any phase of normal user
operation.
WARNING!
Using controls, making adjustments, or performing procedures other than those specified in
this user guide could result in exposure to hazardous radiation.
Canadian DOC regulations
Complies with Canadian EMC Class B requirements.
«Conforme á la classe B des normes canadiennes de compatibilité électromagnétiques.
«CEM».»
Korean EMI statement
ENWW For Regulatory Topics ONLY, contact: 13
Laser statement for Finland
LASERTURVALLISUUS
LUOKAN 1 LASERLAITE
LASERLAITE KLASS 1 LASER APPARAT
HP LaserJet 1010 -laserkirjoitin on käyttäjän kannalta turvallinen luokan 1 laserlaite.
Normaalissa käytössä kirjoittimen suojakotelointi estää lasersäteen pääsyn laitteen
ulkopuolelle. Laitteen turvallisuusluokka on määritetty standardin EN 60825-1 (1993)
mukaisesti.
VAROITUS!
Laitteen käyttäminen muulla kuin käyttöohjeessa mainitulla tavalla saattaa altistaa käyttäjän
turvallisuusluokan 1 ylittävälle näkymättömälle lasersäteilylle.
VARNING!
Om apparaten används på annat sätt än i bruksanvisning specificerats, kan användaren
utsättas för osynlig laserstrålning, som överskrider gränsen för laserklass 1.
HUOLTO
HP LaserJet 1010 -kirjoittimen sisällä ei ole käyttäjän huollettavissa olevia kohteita. Laitteen
saa avata ja huoltaa ainoastaan sen huoltamiseen koulutettu henkilö. Tällaiseksi
huoltotoimenpiteeksi ei katsota väriainekasetin vaihtamista, paperiradan puhdistusta tai
muita käyttäjän käsikirjassa lueteltuja, käyttäjän tehtäväksi tarkoitettuja ylläpitotoimia, jotka
voidaan suorittaa ilman erikoistyökaluja.
VARO!
Mikäli kirjoittimen suojakotelo avataan, olet alttiina näkymättömälle lasersäteilylle laitteen
ollessa toiminnassa. Älä katso säteeseen.
VARNING!
Om laserprinterns skyddshölje öppnas då apparaten är i funktion, utsättas användaren för
osynlig laserstrålning. Betrakta ej strålen.
Tiedot laitteessa käytettävän laserdiodin säteilyominaisuuksista:
1) Aallonpituus 770-795 nm
2) Teho 5 mW
3) Luokan 3B laser
14 Chapter 1 Product Information ENWW
Installation and Operation
This chapter provides an overview of the appropriate operating environment, describes the
control panel, and describes media requirements and loading media to print.
Operating environment ..........................................................................................................16
Identifying the control panel components...............................................................................17
Product media specifications..................................................................................................18
Supported media sizes (printer).......................................................................................18
Guidelines for using media.....................................................................................................19
Paper and Transparencies ..............................................................................................19
Common media problems table .......................................................................................19
Labels ..............................................................................................................................19
Envelopes ........................................................................................................................20
Card stock and heavy media ...........................................................................................20
Loading media .......................................................................................................................22
Loading media to print......................................................................................................22
ENWW 15
Operating environment
Place the product on a sturdy, level surface in a well-ventilated area that meets the following
environmental requirements:
● Temperature: 10° to 32.5° C (50° to 90.5° F)
● Humidity: 20 to 80 percent relative humidity (no condensation)
● Away from direct sunlight, open flames, and ammonia fumes
● Sufficient space around the product to allow for proper access and ventilation
370mm (14.6 inches)
208mm (8.2 inches)
230mm (9.1 inches)
Figure 2-1. Dimensions of product
16 Chapter 2 Installation and Operation ENWW
Identifying the control panel components
The printer control panel has three lights and two buttons. These lights produce patterns that
identify your printer’ s status.
Figure 2-2. Control panel lights and buttons
1 Attention light: Indicates printer media input tray is empty, print cartridge door is open, print
cartridge is missing, and other errors.
2 Ready light: Indicates that the printer is ready to print.
3 Go button and light: To print a demo page, or to continue printing while in manual feed mode, press
and release the Go button. To print a configuration page, press and hold the Go button between 5
and 10 seconds until the attention and ready lights flash. To run a cycle to clean the paper path
(using a transparency), press and hold the Go button for at least 10 seconds until the attention and
ready lights stay on.
4 Cancel Job button: When the printer is processing data, press the Cancel Job button to cancel the
print job.
1
2
3
4
Note
The two printer buttons, Go and Cancel are mechanically linked and activate the same switch
on the formatter. The formatter switch performs the correct function, based on the state of the
printer when either button is pressed. Ease-of-use studies during product design resulted in
offering the user a Go and a Cancel button rather than just a single button.
ENWW Identifying the control panel components 17
Product media specifications
The product accepts a variety of media. Properties such as weight, grain, and moisture
content are important factors affecting printer performance and output quality. Media should
conform to the guidelines in the User Guide located on the product CD. Media that does not
meet HP guidelines might cause poor print quality, increased media jams, or premature wear
on the product. This may require repair.
CAUTION
Damage caused by media that does not meet HP’s specifications is not covered by the HP
warranty or service agreements.
Supported media sizes (printer)
The printer supports media within these sizes:
● Minimum: 76 x 127 mm (3 x 5 in)
● Maximum: 216 x 356 mm (8.5 x 14 in)
Table 2-1. Media types
Paper type Metric English
Letter 216 x 279 mm 8.5 x 11 in
Legal 216 x 356 mm 8.5 x 14 in
Executive 184 x 267 mm 7.25 x 10.5 in
A4 210 x 297 mm 8.25 x 11.75 in
COM10 Envelopes 105 x 241 mm 4.13 x 9.5 in
DL Envelopes 110 x 220 mm 4.33 x 8.67 in
C5 Envelopes 162 x 229 mm (6.4 x 9 in)
B5 Envelopes 176 x 250 mm (6.9 x 9.85 in)
Monarch Envelopes 98.5 x 191 mm (3.88 x 7.5 in)
Custom size media custom custom
Note
Narrow and heavy media can cause the printer to print slower.
18 Chapter 2 Installation and Operation ENWW
Guidelines for using media
HP LaserJet printers produce excellent print quality documents. You can print on a variety of
media, such as paper (including up to 100 percent recycled fiber content paper), envelopes,
labels, transparencies, and custom-sized media.
Paper and Transparencies
Paper must be of good quality and free of cuts, nicks, tears, spots, loose particles, dust,
wrinkles, holes, and curled or bent edges. Check the label on the paper package for details
about the type of paper (such as bond or recycled).
Some paper causes print quality problems, jamming, or damage to the printer.
Note
Do not use letterhead that is printed with low-temperature inks, such as those used in some
types of thermography, raised letterhead, or colored paper or preprinted forms that use inks
incompatible with the printer temperature [200° C (392° F) for 0.1 second].
Transparencies must be able to withstand 200° C (392° F), the printer’s maximum
temperature.
Common media problems table
Symptom Problem with paper Solution
Poor print quality or toner
adhesion, or problems with
feeding.
Dropouts, jamming, or curl. Stored improperly. Store paper flat in its moisture-
Increased gray background
shading.
Excessive curl, or problems with
feeding.
Too moist, too rough, too
smooth, or embossed. Faulty
paper lot.
Might be too heavy. Use lighter paper.
Too moist, wrong grain
direction, or short-grain
construction.
Try another kind of paper
between 100 and 250 Sheffield
and 4 to 6 percent moisture
content.
proof wrapping.
Use long-grain paper. Print
using the straight-through
output path.
Jamming, or damage to printer. Cutouts or perforations. Do not use paper with cutouts
or perforations.
Problems with feeding. Ragged edges. Use good quality paper.
Labels
When selecting labels, consider the following factors:
● Adhesives: The adhesive material should be stable at 200° C (392° F), the printer’s
maximum temperature.
● Arrangement: Only use labels with no exposed backing between them. Labels can peel
off sheets that have spaces between the labels, causing serious jams.
ENWW Guidelines for using media 19
● Curl: Prior to printing, labels must lie flat with no more than 13 mm (0.5 in) of curl in any
direction.
● Condition: Do not use labels with wrinkles, bubbles, or other indications of separation.
Never use a sheet of labels that has already been run through the printer.
Envelopes
Envelope construction is critical. Envelope fold lines can vary considerably, not only between
manufacturers, but also within a box from the same manufacturer. Successful printing on
envelopes depends on the quality of the envelopes. When selecting envelopes, consider the
following factors:
●
Weight: The weight of the envelope paper should not exceed 105 g/m
jamming might result.
● Construction: Prior to printing, envelopes should lie flat with less than 6 mm (0.25 in)
curl and should not contain air. Envelopes that trap air may cause problems.
● Condition: Make sure that the envelopes are not wrinkled, nicked, or otherwise
damaged.
● Sizes: From 90 x 160 mm (3.5 x 6.3 in) to 178 x 254 mm (7 x 10 in).
Store envelopes flat. If air is trapped in an envelope, creating an air bubble, the envelope
might wrinkle during printing.
2
(28 lb), or
Envelopes with double-side seams
An envelope with double-side-seam construction (vertical seams at both ends of the
envelope rather than diagonal seams) is more likely to wrinkle. Make sure the seam extends
all the way to the corner of the envelope as shown in top figure of the following illustration:
Should print well.
May jam or wrinkle.
Envelopes with adhesive strips or flaps
Envelopes with a peel-off adhesive strip or with more than one flap that folds over to seal
must use adhesives compatible with the heat and pressure in the printer: 200°C (392° F).
The extra flaps and strips might cause wrinkling, creasing, or jams.
Card stock and heavy media
For optimum performance, do not use paper heavier than 157 g/m 2 (42-lb). Paper that is too
heavy might cause misfeeds, stacking problems, paper jams, poor toner fusing, poor print
quality, or excessive mechanical wear.
20 Chapter 2 Installation and Operation ENWW
Note
You might be able to print on heavier paper if you do not fill the input tray to capacity and if
you use paper with a smoothness rating of 100 to 180 Sheffield.
Card stock construction
●
Smoothness: 135-157 g/m
100 to 180 Sheffield. 60-135 g/m
rating of 100 to 250 Sheffield.
● Construction : Card stock should lie flat with less than 5 mm (0.2 in) of curl.
● Condition: Make sure that the card stock is not wrinkled, nicked, or otherwise damaged.
● Sizes: Only use card stock within the following size ranges:
● Minimum: 76 x 127 mm (3 x 5 in)
● Maximum: 216 x 356 mm (8.5 x 14 in)
2
(36-to 42-lb) card stock should have a smoothness rating of
2
(16- to 36-lb) card stock should have a smoothness
Card stock guidelines
●
Set margins at least 2 mm (0.08 in) away from the edges.
ENWW Guidelines for using media 21
Loading media
Loading media in the HP LaserJet 1010 series printers is simple and straightforward.
Loading media to print
This section describes loading bulk media to print.
Main input tray
The main input tray holds up to 150 sheets of 75 g/m2 (20 lb) paper or a 25 mm (0.98 in)
stack of heavier media. Load media with the top forward and the side to be printed facing up.
To prevent jams and skew, always adjust the side media guides.
Priority input tray
Note
The priority input tray can be used to feed one page at a time of a recommended media for
manual feeding and special operations. It can hold up to ten pages of 75 g/m
but is best used for feeding one page at a time of paper, heavier paper, envelope,
transparency, or card stock. Load media with the top forward and the side to be printed
facing up. To prevent jams and skew, always adjust the side media guides.
If you try to print on media that is wrinkled, folded, or damaged in any way, a jam might
occur. See the User Guide located on the product CD for more information.
When you add new media, make sure that you remove all of the media from the input tray
and straighten the stack of new media. This helps prevent multiple sheets of media from
feeding through the printer at one time, reducing paper jams.
2
(20 lb) paper,
Specific types of media
● Transparencies and labels: Load transparencies and labels with the top forward and
the side to be printed facing up. See the User Guide located on the product CD for more
information.
● Envelopes: Load envelopes with the narrow, stamp side forward and the side to be
printed facing up. See the User Guide located on the product CD for more information.
● Letterhead or preprinted forms: Load with the top forward and the side to be printed
facing up. See the User Guide for more information.
● Cards and custom-sized media: Load with the narrow side forward and the side to be
printed facing up. See the User Guide located on the product CD for more information.
22 Chapter 2 Installation and Operation ENWW
Maintenance
This chapter describes the life expectancy of parts that wear, printer cleaning, printer
maintenance, and the replacement of user-replaceable parts.
Life expectancies of parts that wear ......................................................................................24
Cleaning the product...............................................................................................................25
Cleaning the print path.....................................................................................................25
Cleaning the print cartridge area......................................................................................26
Cleaning the printer pickup roller .....................................................................................27
User-replaceable parts ...........................................................................................................29
Replacing the printer pickup roller ...................................................................................29
Replacing the printer separation pad................................................................................31
Replacing the main input tray (paper pickup tray assembly)............................................33
Replacing the output tray extension (delivery tray assembly)..........................................34
ENWW 23
Life expectancies of parts that wear
Inspect any parts that wear when servicing the product. Replace them as needed, based on
failure or wear, rather than on usage.
The following table lists approximate schedules for replacing consumables.
Table 3-1. Life expectancies of parts that wear
Description Part number Life (estimated) Remarks
Print cartridge (userreplaceable)
Pickup roller
Printer separation pad
Fuser assembly
Fuser assembly (220240 V)
Q2612A 2,000 pages
Note
The estimated print
cartridge life is based
on letter- or A4-sized
paper with an average
of 5 percent toner
coverage and a
medium density
setting. Print cartridge
life can be extended
further by conserving
toner using draft mode
settings.
RL1-0266-000CN 50,000 pages Affects paper pickup.
RC1-2095-000CN 50,000 pages Affects paper
RM1-0650-000CN 50,000 pages Can affect print quality
RG9-1494-030CN 50,000 pages Can affect print quality
When print becomes
faint, redistribute the
toner in the cartridge
by gently rotating the
cartridge from side to
side or replace the
cartridge.
separation (feeding
one page at a time).
and/or paper
movement.
and/or paper
movement.
24 Chapter 3 Maintenance ENWW
Cleaning the product
WARNING!
CAUTION
WARNING!
CAUTION
Before you perform these steps, unplug the product to avoid shock hazard.
To maintain quality, thoroughly clean the product:
● Any time a new print cartridge is installed.
● After printing approximately 2,000 pages.
● Whenever print quality problems appear.
Clean the outside of the product with a water-dampened cloth. Clean the inside with only a
dry, lint-free cloth (such as a lens tissue).
To avoid permanent damage to the product, do not use ammonia-based or ethyl alcoholbased cleaners on or around the product.
Avoid touching the heating element in the fuser. It might be very hot and can cause burns.
Do not touch the surface of the black sponge transfer roller. Contaminants on the roller can
cause print quality problems.
Cleaning the print path
The HP LaserJet 1010 series printer features a special cleaning mode to clean the paper
path.
Note
Note
Note
This process requires a transparency to remove dust and toner from the print paper path. Do
not use bond or rough paper.
Make sure the transparency used in this cleaning process meets the media requirements for
the printer.
If transparency film is unavailable, you can use copier grade paper (18 to 24 lb. or 70 to
90 g/m
times to ensure proper cleaning.
1. Load a transparency in the priority input tray.
2. Make sure that the printer is idle and the Ready light is on.
3. Load the media in the input tray.
4. Access the HP toolbox. Click the Troubleshooting tab, and click Print Quality Tools.
The cleaning process can also be initiated by holding down the Go button for approximately
12.5 seconds.
The cleaning process takes approximately 2 minutes. The cleaning page will stop periodically
during the cleaning process. Do not turn the printer off until the cleaning process has
finished. You might need to repeat the cleaning process several times to thoroughly clean the
printer.
2
) with a smooth surface. If you must use paper, perform the procedure two or three
Select the cleaning page.
ENWW Cleaning the product 25
Cleaning the print cartridge area
You do not need to clean the print cartridge area often. However, cleaning this area can
improve the quality of your printed sheets.
1. Turn off the printer, unplug the power cord, and wait for the printer to cool.
2. Open the print cartridge door, and remove the print cartridge.
CAUTION
To prevent damage, do not expose the print cartridge to light. Cover the print cartridge if
necessary. Also, do not touch the black sponge transfer roller inside the printer. By doing so,
you can damage the printer.
3. With a dry, lint-free cloth, wipe any residue from the media path area and the print
cartridge cavity.
26 Chapter 3 Maintenance ENWW
4. Replace the print cartridge, and close the print cartridge door.
5. Plug in the printer, and turn it on.
Cleaning the printer pickup roller
If you want to clean the pickup roller rather than replace it, follow the instructions below:
ENWW Cleaning the product 27
Remove the pickup roller as described in steps 1 through 5 of Replacing the printer pickup
roller.
1. Dampen a lint-free cloth with water and scrub the roller.
H2O
2. Using a dry, lint-free cloth, wipe the pickup roller to remove loosened dirt.
3. Allow the pickup roller to dry completely before you reinstall it in the printer. To reinstall
the pickup roller, see steps 6 through 9 of
Replacing the printer pickup roller.
28 Chapter 3 Maintenance ENWW
User-replaceable parts
To order a new pickup roller or separation pad, go to http://partsdirect.hp.com.
Replacing the printer pickup roller
If the printer regularly misfeeds (no media feeds through) and cleaning the pickup roller does
not fix it, replace the pickup roller.
CAUTION
Failure to complete all the steps in this procedure might damage the product.
1. Turn off the printer, unplug the power cord, and wait for the printer to cool.
2. Open the print cartridge door, and remove the print cartridge.
3. Locate the pickup roller.
ENWW User-replaceable parts 29
4. Gently release the small, white tabs on each side of the pickup roller by pushing them
away from the roller, and then rotate the pickup roller toward the front.
CAUTION
Note
Use gentle pressure to release the small white tabs to avoid breaking them.
5. Gently pull the pickup roller up and out.
6. Position the new pickup roller in the slot of the previous pickup roller.
Circular and rectangular pegs on each side prevent you from incorrectly positioning the
pickup roller.
7. Rotate the top of the new pickup roller into position until the white tabs on each side of
the roller snap the roller into place.
30 Chapter 3 Maintenance ENWW
8. Reinstall the print cartridge and close the print cartridge door.
9. Plug in the printer, and turn it on.
Note
Replacing the printer separation pad
If the printer grabs more than one page at a time, you might have to replace the printer
separation pad. Recurring feed problems indicate that the printer separation pad is worn.
Before you change the separation pad, clean the pickup roller. See Cleaning the printer
pickup roller for instructions. To order parts, go to http://partsdirect.hp.com.
ENWW User-replaceable parts 31
Note
The following procedure requires a #2 Phillips-head screwdriver.
1. Turn off the printer, unplug the power cord, and wait for the printer to cool.
2. At the back of the printer, unscrew the two screws holding the separation pad in place.
3. Remove the separation pad.
32 Chapter 3 Maintenance ENWW
4. Insert the new separation pad, and screw it in place.
5. Plug the printer in, and turn it on.
Note
Replacing the main input tray (paper pickup tray assembly)
If you break or damage the main input tray (also called the paper pickup tray assembly), you
can replace it. To order parts, go to http://partsdirect.hp.com.
1. Carefully flex the main input tray just enough to release one side.
Take care not to break the hinge points.
2. Remove the main input tray.
ENWW User-replaceable parts 33
Replacing the output tray extension (delivery tray assembly)
If you break or damage the output tray extension (also called the delivery tray assembly), you
can replace it. To order parts, go to http://partsdirect.hp.com.
1. Carefully flex the output tray extension just enough to release one side.
Note
Take care not to break the hinge points.
2. Remove the output tray extension.
34 Chapter 3 Maintenance ENWW
Operational overview
This chapter describes the general components of the HP LaserJet 1010 series and their
theory of operation.
Basic functions........................................................................................................................36
Formatter system....................................................................................................................37
Central processing unit ....................................................................................................37
RAM..................................................................................................................................37
Universal Serial Bus interface..........................................................................................37
Parallel interface (HP LaserJet 1015 only).......................................................................37
Control panel....................................................................................................................37
Draft mode .......................................................................................................................38
MEt................................................................................................................................... 38
Enhanced I/O ...................................................................................................................38
PJL overview ...................................................................................................................38
Printer functions......................................................................................................................39
Engine control system (engine control unit and power assembly)...................................39
Image formation system...................................................................................................43
Printer paper feed system................................................................................................44
Jam detection ..................................................................................................................46
Solenoid, sensors, and switches......................................................................................46
Basic sequence of operation (formatter-to-printer)...........................................................47
ENWW 35
Basic functions
The major functions of the printer and the corresponding systems providing them are:
● Formatter and I/O functions
● Formatter system
● Printer functions and operation
● Engine control system (engine control unit--ECU--and engine power assembly)
● Image formation system
● Paper feed system
ENGINE UNIT
PRINTER
FORMATTER
COMPUTER
Figure 4-1. Basic configuration
ECU
36 Chapter 4 Operational overview ENWW
Formatter system
The formatter coordinates the major systems. It is responsible for the following:
● Receiving and processing print data from the printer interface (from the computer)
● Monitoring the control panel and relaying printer status information
● Developing and coordinating data placement and timing with the print engine
● Communicating with the host computer through the bidirectional interface
The formatter receives print data from the parallel interface or the Universal Serial Bus (USB)
interface and converts it into a dot image. The ECU synchronizes the image formation
system with the paper feed system and signals the formatter to send the print image data to
the laser system. The formatter sends the print image data (dots) in the form of a video
signal, and the printing process begins.
Central processing unit
The formatter uses an embedded Coldfire V4 microprocessor operating at 133 MHz.
RAM
● One bank of nonvolatile RAM (NVRAM) stores parameters.
● Dynamic random access memory (DRAM) provides temporary storage of the product
program code and print data.
● The HP LaserJet 1010 and 1012 have 8 MB of RAM.
● The HP LaserJet 1015 has 16 MB of RAM.
Universal Serial Bus interface
The formatter receives incoming data through the USB interface. This interface provides
high-speed, two-way communication between the product and the host, allowing applications
on the host computer to change product settings and monitor product status. The USB
interface is compatible with the USB 2.0 specification.
Parallel interface (HP LaserJet 1015 only)
If the parallel interface on the HP LaserJet 1015 is used, the formatter receives incoming
data through bidirectional ECP. Like the USB interface, the parallel interface supports highspeed, two-way communication between the product and the host, so applications on the
host computer can change product settings and monitor product status. Use an IEEE 1284compliant parallel cable.
Control panel
The control panel consists of:
● Three status lights.
● Go and Cancel Job buttons
ENWW Formatter system 37
Draft mode
Depending on which driver is used, selecting draft or EconoMode from the driver allows the
product to use approximately 50 percent less toner, extending the life of the print cartridge.
MEt
HP MEt effectively doubles the standard memory through a variety of font and datacompression methods.
Enhanced I/O
The Enhanced I/O feature allows product memory to be used for storing data received from
the host computer. When Enhanced I/O is enabled, you can send more data to the product in
shorter amounts of time, which allows you to return to your application sooner. Enhanced I/O
has the following options:
● Auto —allows the product to use Enhanced I/O memory allocation to increase the speed
of data transfer from the host computer to the product, if necessary. The default setting is
Auto.
● Off —uses the minimum amount of product memory for storing data sent from the host
computer.
● Page protect—allows the formatter to create the entire page image in page buffer
memory before physically moving the media through the printer. This process ensures
that the entire page will be printed.
Note
Page complexity (ruling lines, complex graphics, or dense text) can exceed the printer’s
ability to create the page image fast enough to keep pace with the image formation process.
If Page Protect is disabled and a page is too complex, the page might print in parts (for
example, the top half on one page and the bottom half on the next page). Some print-data
loss is likely in these instances, and the product will display an error message.
PJL overview
When using the parallel port on the HP LaserJet 1015, Printer Job Language (PJL) is an
integral part of configuration (in addition to the standard Printer Command Language--PCL).
With IEEE 1284-compliant parallel cable (standard ECP cabling), PJL allows the product to
perform functions such as:
● Two-way communication with the host computer through a bidirectional parallel
connection. The product can communicate information to the host (such as the control
panel status).
● Isolation of print environment settings from one print job to the next. For example, if a
print job is sent to the printer in landscape mode, the subsequent print jobs print in
landscape only if they are formatted for landscape printing.
PJL commands can be sent to the printer only from a DOS command prompt and through a
parallel cable, and thus apply only to the HP LaserJet 1015. DOS applications are not
supported over a USB interface.
38 Chapter 4 Operational overview ENWW
Printer functions
Printer functions are divided into five groups:
● Engine control
● Formatter
● Image formation
● Laser/scanner
● Pickup and feed
The following figure is a block diagram of the printer:
To external device
(host computer, etc.)
Output tray
LASER/SCANNER UNIT
Scanning mirror
Laser
diode
Scanner
motor
IMAGE
FORMATION
SYSTEM
Cleaning
Fuser
unit
Figure 4-2. Printer functional block diagram
unit
BD
sensor
Primary
charging
roller
Photo
sensitive
drum
Transfer
charging
roller
Develop-
ing unit
FORMATTER
ENGINE CONTROL SYSTEM
Engine power assembly
ECU
Priority input tray
Pickup
control
unit
Main input tray
PAPER PICKUP/FEED
SYSTEM
Engine control system (engine control unit and power assembly)
The engine control system coordinates all print engine activities. The engine control system
includes both the engine control unit (ECU) PCA and the engine power assembly PCA.
Note
ENWW Printer functions 39
In other HP LaserJet products, the ECU and power functions are combined onto one PCA
known as the controller PCA or the DC controller PCA. In the HP LaserJet 1010 series, the
control functions are primarily relegated to the ECU PCA and the power functions to the
engine power assembly PCA.
The ECU controls the following systems and functions:
● Printer engine control
● Paper motion monitoring and control (printing)
● Motor
● Printer laser/scanner unit
The engine power assembly provides the power system:
● AC power distribution
● DC power distribution
● Overcurrent/overvoltage protection
● High-voltage power distribution
Printer engine control system
Paper motion monitoring and control
The ECU controls paper motion in the printer by continuously monitoring the two paper
sensors and coordinating the timing with the other print processes.
For a detailed explanation of paper movement and the interaction of the sensors and pickup
solenoid with the paper movement process, see
Motor
Printer paper feed system.
The ECU controls the motor. The motor drives all of the printer paper movement.
Printer laser/scanner unit
The ECU sends signals to the laser/scanner assembly to modulate the laser diode's on and
off modes and to drive the laser/scanner motor.
40 Chapter 4 Operational overview ENWW
VDO
e
/BDI
Laser driver PCB
Cylindrical lens
/VDO
CNT0
CNT1
/BD
/ACC
/DEC
Formatter
Engine
controller
PCB
Figure 4-3. Laser/scanner operation
Power system on the engine power assembly
BD
sensor
Four-sided
mirror
Scanner motor
Photosensitiv
drum
Focusing lens
The AC, DC, and high-voltage power supply circuits are all provided by the engine power
assembly.
AC power distribution
The AC power circuitry supplies AC voltage whenever the power cord is connected to the AC
power source and the power switch is on. AC voltage is distributed to the DC power supply
circuitry and to the AC driver circuitry, which controls AC voltage to the fuser assembly
heating element.
DC power distribution
The DC power distribution circuitry, located on the engine power assembly, distributes +3.3
Vdc, +5 Vdc, and +24 Vdc as follows:
● +3.3 Vdc: ECU, sensors, formatter
● +5 Vdc: Parallel interface on the 1015 formatter
● +24 Vdc: Main motor, laser/scanner motor, solenoid, high-
voltage power supply, fuser, safety circuit, door
switch
Overcurrent/overvoltage
ENWW Printer functions 41
There are two overvoltage devices in this product:
● Fuse F101 provides overcurrent protection for the fusing system circuitry.
● Fuse F102 (110V products only) provides overcurrent protection to the printer DC power
supply circuitry.
You can check or replace the fuses by removing the left cover. If either of these fuses fail,
replace the engine power assembly.
High-voltage power distribution
The high-voltage power supply applies an overlap of DC and AC voltage to the primary
charging roller and to the developing roller. This circuit also applies a positive or negative DC
voltage to the transfer roller according to the instructions from the engine control unit.
This circuit also controls the image density by changing the primary AC voltage and the
developing AC bias according to the print density setting (which is set using HP Toolbox).
High voltage is disabled when the print cartridge door is open.
Engine controller PCB
IC902
CPU
PRPWM
PRAC
DVAC
Power supply PCB
High-voltage power supply circuit
Primary charging bias circuit
IC301
J201-14J902-10
IC301IC301
J201-15J902-9
Developing bias circuit
IC301
J201-16J902-8
roller
DC voltage
generation
circuit
Combined
AC voltage
generation
circuit
DC voltage
generation
circuit
Combined
AC voltage
generation
circuit
PR1
DEV
charging roller
J304
Photosensitive
J303
J301
Primary
drum
Developing
cylinder
TRPDC
J201-18J902-6
TRNDC
J201-17J902-7
TRCRNT
J201-22J902-2
Transfer charging bias circuit
Positive voltage
generation circuit
Negative voltage
IC501
generation circuit
TRS
J302
Transfer
charging
Figure 4-4. High-voltage power supply circuit
42 Chapter 4 Operational overview ENWW
Image formation system
Laser printing requires the interaction of several different technologies including electronics,
optics, and electrophotographics to provide a printed page. Each process functions
independently and must be coordinated with the other printer processes. Image formation
consists of seven processes:
Electrostatic latent image formation stage
Paper direction
Direction of drum rotation
1. Primary charging
Drum cleaning
stage
Paper delivery
Fusing stage
6. Fusing
Figure 4-5. Image formation block diagram
Print cartridge
As the focal point of the image formation system, the print cartridge contains toner and
houses the cleaning, conditioning, and developing stages of the process. The print cartridge
contains the photosensitive drum, primary charging roller, developing station, toner cavity,
and cleaning station. By including these components (which wear, degrade, or are
consumed) in the replaceable print cartridge, the need for many service calls is eliminated.
The special photosensitive properties of the drum form an image on the drum surface and
then transfer the image to media.
CAUTION
The print cartridge does not include a light-blocking shutter. Do not expose the drum to light,
which can permanently damage the drum. Protect the print cartridge whenever you remove it
by covering it with paper.
2. Scanning exposure
7. Drum cleaning
4. Transfer5. Separation
Transfer stage
3. Developing
Developing stage
Pick-up
The seven image-formation processes
1. Conditioning stage (primary charging)—This process applies a uniform negative
charge to the surface of the drum with the primary charging roller, which is located in the
print cartridge. The primary charging roller is coated with conductive rubber. An AC bias
is applied to the roller to erase any residual charges from any previous image. In
addition, the primary charging roller applies a negative DC bias to create a uniform
negative potential on the drum surface. The print density setting modifies the DC voltage.
2. Writing stage (scanning exposure)—During this process, a modulated laser diode
projects the beam onto a rotating scanning mirror. As the mirror rotates, the beam
reflects off the mirror, first through a set of focusing lenses, then off a mirror, and finally
through a slot in the top of the print cartridge, and onto the photosensitive drum. The
beam sweeps the drum from left to right, discharging the negative potential wherever the
beam strikes the surface. This creates a latent electrostatic image, which later is
developed into a visible image. Because the beam sweeps the entire length of the drum
while the drum rotates, the entire surface area of the drum can be covered. At the end of
each sweep, the beam strikes the beam-detect lens, generating the beam-detect signal
(BD signal). The BD signal is sent to the ECU where it is converted to an electrical signal
used to synchronize the output of the next scan line of data.
ENWW Printer functions 43
3. Developing stage—During this process, the latent electrostatic image is present on the
drum. The toner particles obtain a negative surface charge by rubbing against the
developing cylinder, which is connected to a negative DC supply. The negatively charged
toner is attracted to the discharged (exposed, grounded) areas of the drum, and it is
repelled from the negatively charged (unexposed) areas.
4. Transfer stage—During this process, the toner image on the drum surface is transferred
to the media. The transfer roller applies a positive charge to the back of the media, which
attracts the negatively charged toner on the drum surface to the media. After separation,
the drum is cleaned and conditioned for the next image.
5. Separation stage—During this process, the media separates from the drum. To stabilize
the feed system and prevent toner dropouts on the printed image at low temperature and
humidity, the static eliminator reduces the charge on the back of the media.
6. Fusing stage—During this process, the heat and pressure fuse the toner into the media
to produce a permanent image. The media passes between a heated fusing element and
a soft pressure roller, which melt the toner and press it into the media.
7. Drum-cleaning stage—During this process, the cleaning blade is in contact with the
surface of the drum at all times. As the drum rotates during printing, the cleaning blade
wipes excess toner off the drum and stores it in the waste toner receptacle.
Printer paper feed system
The main input tray and the priority input tray merge into one main input area. The printer
senses the paper as it enters the paper feed path via the top of page sensor (PS801). It does
not sense the presence of media prior to beginning the print cycle. The following steps occur
when the product receives a print job:
Step 1 The ECU activates the motor (M1). Paper motion
begins when the ECU energizes the pick-up
solenoid (SL1).
Step 2 The paper pickup roller rotates once. The paper
lift plate pushes the media against the pickup
roller.
Step 3 The friction of the pickup roller grabs the top
sheet and advances it to the feed assembly drive
rollers. To ensure that only one sheet is fed, a
main separation pad holds the remainder of the
stack in place.
Step 4 The feed assembly drive rollers advance the
media to the top-of-page sensor (PS801). This
sensor informs the ECU of the exact location of
the leading edge of media, so that the image
being written on the photosensitive drum can be
precisely positioned on the page.
Step 5 The feed assembly drive rollers then advance the
media to the transfer area where the toner image
on the photosensitive drum is transferred to the
media.
44 Chapter 4 Operational overview ENWW
Step 6 After the image is transferred, the media enters
the fuser assembly where heat from the fuser
and pressure from the pressure roller
permanently bond the toner image to media. The
paper delivery sensor (PS803) determines that
the media has successfully moved out of the
fusing area.
Step 7 The fuser assembly exit rollers deliver media to
the paper output bin face down.
Engine controller PCB
(/POSNS)
MAIN MOTOR DRIVE signals
PICK-UP SOLENOID DRIVE signal (CPUD)
PAPER DELIVERY DETECTION sigunal
Formatter
Delivery roller
PS803
Fuser
Transfer
roller
SL1
Separation
pad
PS801: Top of page sensor
PS802: Paper width sensor
PS803: Paper delivery sensor
M1: Main motor
SL1: Pick-up solenoid
Photo-sensitive
drum
PS801
Pressure roller
PS802
Pick-up roller
TOP OF PAGE DETECTION signal (/PISNS)
PAPER WIDTH DETECTION signal (/PWSNS)
M1
Priority input tray
Main input tray
Figure 4-6.
Printer paper path
ENWW Printer functions 45
Jam detection
The top-of-page sensor (PS801) and the paper delivery sensor (PS803) detect media moving
through the printer. If a jam is detected, the ECU immediately stops the printing process and
displays the a jam light on the control panel.
Conditions of jam detection
● Pickup delay jam—Paper does not reach the top-of-page sensor (PS801) within 1.4
seconds after the pickup solenoid (SL1) has been turned on, a second pickup operation
is attempted, and paper again does not reach the top-of-page sensor within 1.4
seconds..
● Pickup stationary jam—The top-of-page sensor (PS801) does not detect the trailing
edge of media within 4.6 seconds of detecting the leading edge.
● Delivery-delay jam—The paper delivery sensor (PS803) does not detect the leading
edge of media within 2.1 seconds after the top-of-page sensor (PS801) detects the
leading edge.
● Wrapping jam—The paper delivery sensor (PS803) does not detect the trailing edge of
the media within 1.5 seconds after the top-of-page sensor (PS801) detects the leading
edge and within ten seconds after the paper delivery sensor (PS803) detects the leading
edge.
● Delivery-stationary jam—The paper delivery sensor (PS803) does not detect the
leading edge of media within 2.2 seconds after the top-of-page sensor (PS801) detects
the trailing edge.
● Residual paper jam—The top-of-page sensor (PS801) or the paper delivery sensor
(PS803) detect media in the initial rotation period.
● Door open jam—The top-of-page sensor (PS801) or the paper delivery sensor (PS803)
detect media while the print cartridge door is open.
Solenoid, sensors, and switches
The following figure shows the locations of the solenoid, sensors, and switches.
46 Chapter 4 Operational overview ENWW
➅
➆
➂
➁
Figure 4-7. Solenoid, photosensors, and switches
1 Door switch detects whether or not the print cartridge door is closed. Printing cannot continue until
the print cartridge door is closed.
2 Power switch.
3 Paper-width sensor senses the width of the paper.
4 Paper delivery sensor senses when paper has successfully moved out of the fusing area.
5 Top-of-page sensor detects the leading and trailing edges of the paper. It synchronizes the
photosensitive drum and the top of the paper.
6 Solenoid.
7 Motor.
➃
➀
➄
Basic sequence of operation (formatter-to-printer)
The operation sequence of the printer is controlled by the microprocessor (CPU) on the ECU.
The following events take place during normal printer operation:
Table 4-1. Basic sequence of operation
Period Purpose Remarks
WAIT After the product is turned
on until the end of the initial
rotation of the main motor.
STBY (Standby) From the end
of the WAIT period or the LSTR
period until the pickup
command is sent from the
formatter. Or, from the end of
the LSTR period until the
product is turned off.
ENWW Printer functions 47
To clear the drum surface of
potential and to clean the
primary charging roller.
To pause until the product is
ready to print.
Detects whether or not the
cartridge is installed.
Period Purpose Remarks
INTR (Initial Rotation Period)
After the pickup command has
been sent from the formatter
until the media reaches the topof-page sensor (PS801).
PRINT (Print) From the end of
the initial rotation until the
primary voltage goes OFF.
LSTR (Last Rotation Period)
After the primary voltage goes
OFF until the main motor stops
rotating.
To stabilize the photosensitive
drum sensitivity in preparation
for printing. Also to clean the
primary charging roller.
To form images on the
photosensitive drum based on
the VIDEO signals (/VDO, VDO)
sent from the formatter and to
transfer the toner image onto
the media.
To deliver the last page. Also to
clean the primary charging
roller.
When the pickup command is
sent from the video controller,
the printer enters the INTR
period immediately after the end
of the LSTR period.
48 Chapter 4 Operational overview ENWW
(Unit:Seconds)
STBY
LSTR
PRINT
INTR
STBY
WAIT
About 1.1
Between-sheets Temperature Control
About 1.1
100°C Control
Print Temperature Control
About 0.1
About 0.25
About 1.1
About 0.1
About 0.45
Max. 3.0
Max. 122
0.04
About 0.2
About 0.2
About 0.7
About 0.7
About 3.0
About 1.5
About 1.5
About 1.5
0.65
About 0.6
About 0.99
About 0.17
About 0.16 About 0.17
About 0.16
About 2.2
About 0.4
About 0.4
About 0.47
About 0.5
Negative Bias
About
About 0.2
About 0.02
Between-sheets Bias
About 0.47
About 0.08
Print Bias
About 0.08
Forced emission
0.2
Max. 1.5
1.0
1.8
Max. 1.5
1.7
0.2
About 0.02
Power Switch ON
SEQUENCE
Fixing Heater (H701)
Print Command
Scanner Motor
Scanner Ready
Main Motor (M1)
Pick-up Solenoid (SL1)
Top of Paper Sensor (PS801)
Paper Delivery Sensor (PS803)
Primary Charging Bias (AC)
Primary Charging Bias (DC)
Developing Bias (AC)
Developing Bias (DC)
Transfer Charging Bias
Laser Diode
13
14
LASER BEAM signal (BD)
15
16
17
18
19
20
Figure 4-8.
1
2
3
4
5
6
Printer timing diagram
7
8
9
11
10
12
ENWW Printer functions 49
50 Chapter 4 Operational overview ENWW
Removal and replacement
This chapter describes the removal and replacement of field-replaceable units (FRUs) only.
Removal and replacement strategy........................................................................................52
Required tools .................................................................................................................52
Before performing service................................................................................................52
Print cartridge ..................................................................................................................52
Differences between the series models............................................................................53
Part removal order ...........................................................................................................53
User-replaceable parts ...........................................................................................................55
Replacing the printer pickup roller ...................................................................................55
Replacing the printer separation pad................................................................................57
Replacing the main input tray (paper pick-up tray assembly)...........................................59
Replacing the output tray extension (delivery tray assembly)..........................................60
Covers..................................................................................................................................... 61
Right side cover................................................................................................................62
Left side cover..................................................................................................................65
Print cartridge access door, fuser cover, and rear panel..................................................65
Front cover.......................................................................................................................68
Internal assemblies.................................................................................................................70
Transfer roller assembly...................................................................................................70
Engine power assembly...................................................................................................72
Fuser (fixing) assembly....................................................................................................73
Paper pickup assembly....................................................................................................75
Engine control unit assembly............................................................................................76
Laser scanner assembly...................................................................................................78
ENWW 51
Removal and replacement strategy
Detailed steps and images showing part removal are included here. Replacement is
generally the reverse of removal. Occasionally, notes are included to provide directions for
difficult or critical replacement procedures.
WARNING!
CAUTION
Remove the power cord before attempting to service the product. If this warning is not
followed, severe injury can result as well as damage to the device. Certain functional checks
during troubleshooting must be performed with power supplied to the product. However, the
power supply should be disconnected during removal of any parts.
Sheet metal and plastic edges in the product can be sharp. Use caution when working on the
product.
Never operate or service the printer with the protective cover removed from the laser scanner
assembly. The reflected beam, although invisible, can damage your eyes.
Some parts are sensitive to electrostatic discharge (ESD). Always perform service work at an
ESD-protected workstation.
To install a self-tapping screw, first turn it counterclockwise to align it with the existing thread
pattern, then carefully turn it clockwise to tighten. Do not overtighten. If a self-tapping screwhole becomes stripped, repair the screw-hole or replace the affected assembly.
Always remove the print cartridge before removing or replacing parts.
Required tools
● #2 Phillips-head screwdriver with magnetic tip
● Small flatblade screwdriver
● Needle-nose pliers
CAUTION
CAUTION
● ESD mat
Do not use a PoziDrive screwdriver or any motorized screwdriver. These can damage screws
or screw threads on the product.
Before performing service
● Remove all media.
● Unplug the power cable.
● Place the product on an ESD mat.
● Remove the input tray cover.
● Remove the print cartridge.
Print cartridge
1. Open the print cartridge access door on the top of the printer.
2. Remove the print cartridge.
To prevent damage, do not expose the print cartridge to light. Cover it with a piece of paper.
52 Chapter 5 Removal and replacement ENWW
Figure 5-1. Removing the print cartridge
Differences between the series models
With the exception of the nameplate, there is no physical difference between the HP LaserJet
1010 and HP LaserJet 1012 printers. The differences between these models are in firmware
functionality.
The HP LaserJet 1015 printer has a parallel port (callout 1, figure 5-2) in addition to the USB
port.
1
Figure 5-2. HP LaserJet 1015 parallel port
Part removal order
Use the following illustration to determine which parts must be removed before removing
other parts.
ENWW Removal and replacement strategy 53
Product teardown tree
START
Right Side CoverTransfer Roller
Front Cover
Assembly
ECU Assembly
Laser Scanner
Assembly
Figure 5-3. Product teardown tree
Left Side Cover
Rear Panel
Assembly
Engine Power
Assembly
Fuser (fixing)
Assembly
Paper Pick-up
Assembly
Customer Replaceables:
-Delivery tray assy.
-Paper pick-up tray assy.
-Pick roller
-Separation pad
54 Chapter 5 Removal and replacement ENWW
User-replaceable parts
To order a new pickup roller or separation pad, go to http://partsdirect.hp.com.
Replacing the printer pickup roller
If the printer regularly misfeeds (no media feeds through) and cleaning the pickup roller does
not fix it, replace the pickup roller.
CAUTION
Failure to complete all the steps in this procedure might damage the product.
1. Turn off the printer, unplug the power cord, and wait for the printer to cool.
2. Open the print cartridge door, and remove the print cartridge.
3. Locate the pickup roller.
ENWW User-replaceable parts 55
4. Gently release the small, white tabs on each side of the pickup roller by pushing them
away from the roller, and then rotate the pickup roller toward the front.
CAUTION
Note
Use gentle pressure to release the small white tabs to avoid breaking them.
5. Gently pull the pickup roller up and out.
6. Position the new pickup roller in the slot of the previous pickup roller.
Circular and rectangular pegs on each side prevent you from incorrectly positioning the
pickup roller.
7. Rotate the top of the new pickup roller into position until the white tabs on each side of
the roller snap the roller into place.
56 Chapter 5 Removal and replacement ENWW
8. Reinstall the print cartridge and close the print cartridge door.
9. Plug in the printer, and turn it on.
Note
Replacing the printer separation pad
If the printer grabs more than one page at a time, you might have to replace the printer
separation pad. Recurring feed problems indicate that the printer separation pad is worn.
Before you change the separation pad, clean the pickup roller. See Chapter 4 for
instructions.
ENWW User-replaceable parts 57
Note
The following procedure requires a #2 Phillips-head screwdriver.
1. Turn off the printer, unplug the power cord, and wait for the printer to cool.
2. At the back of the printer, unscrew the two screws holding the separation pad in place.
3. Remove the separation pad.
58 Chapter 5 Removal and replacement ENWW
4. Insert the new separation pad, and screw it in place.
5. Plug the printer in, and turn it on.
Note
Replacing the main input tray (paper pick-up tray assembly)
If you break or damage the main input tray (also called the paper pick-up tray assembly), you
can replace it.
1. Carefully flex the main input tray just enough to release one side.
Take care not to break the hinge points.
2. Remove the main input tray.
ENWW User-replaceable parts 59
Replacing the output tray extension (delivery tray assembly)
If you break or damage the output tray extension (also called the delivery tray assembly), you
can replace it.
1. Carefully flex the output tray extension just enough to release one side.
Note
Take care not to break the hinge points.
2. Remove the output tray extension.
60 Chapter 5 Removal and replacement ENWW
Covers
Remove the covers to access the internal replaceable parts.
ENWW Covers 61
Right side cover
1. Prior to removal, examine the figure and note the location of tabs on the cover (figure 5-
4).
Figure 5-4. Removing the right side cover (1 of 5)
2. Remove one screw (callout 1, figure 5-5)
Figure 5-5. Removing the right side cover (2 of 5)
1
62 Chapter 5 Removal and replacement ENWW
3. Use a small flat screwdriver to release the tab on the bottom of the cover (callout 1,
figure 5-6).
Figure 5-6. Removing the right side cover (3 of 5)
1
ENWW Covers 63
4. Open the print cartridge door. Lift up at the arrow on the inside of the right side cover
(callout 1, figure 5-7) to release a tab on top.
Figure 5-7. Removing the right side cover (4 of 5)
5. From the back, rotate the cover away from the printer and push forward.
1
Figure 5-8. Removing the right side cover (5 of 5)
64 Chapter 5 Removal and replacement ENWW
Left side cover
1. Removing the left side cover is a similar procedure to removing the right side cover.
Refer to the steps and figures for removing the right side cover. Remove the screw on
the left side and be aware of the plastic tabs in the same places, but on the left side.
Print cartridge access door, fuser cover, and rear panel
Note
This procedure removes the print cartridge access door (also called the face-down delivery
tray), the fuser cover, and the metal rear panel. It is not necessary to take off the print
cartridge access door first or to separate if from the fuser cover.
1. Remove the right side cover
2. Remove the left side cover.
3. Open the print cartridge access door.
4. Remove two screws from the top of the product (callout 1, figure 5-9).
1
Figure 5-9. Removing the rear panel (1 of 5)
ENWW Covers 65
5. Use needle-nosed pliers to release the plastic door link clip from the hinge arm on the
print cartridge access door (figure 5-10).
Figure 5-10. Removing the rear panel (2 of 5)
Note
Figure 5-11. Removing the rear panel (3 of 5)
Reinsert the plastic door link clip or store it with the screws to prevent losing it.
66 Chapter 5 Removal and replacement ENWW
6. Remove one screw (callout 1, figure 5-12) from the back of the product.
1
Figure 5-12. Removing the rear panel (4 of 5)
7. The fuser cover and metal rear panel are interlocked with plastic tabs. Plastic tabs are
also securing the metal rear panel at the bottom. Lift up the fuser cover at the top and
pull it slightly back. Lift the rear panel up off the tabs on the bottom. Both the fuser cover
and the rear panel will come off together and are then easily separable.
Figure 5-13. Removing the rear panel (5 of 5)
ENWW Covers 67
Front cover
1. Remove the left side cover.
2. Remove the right side cover.
3. Open the print cartridge door.
4. Prior to removal, examine figure 5-14 and note the locations of plastic tabs (circled) at
the top of the front cover.
Figure 5-14. Removing the front cover (1 of 3)
5. Using your index fingers or thumbs, pull down on the tabs on the bottom of both sides of
the front cover (callout 1, figure 5-15).
1
Figure 5-15. Removing the front cover (2 of 3)
68 Chapter 5 Removal and replacement ENWW
6. With the bottom of the front cover released, pull up and back at the top while gently
rocking to release all tabs at the top to remove the front cover.
Figure 5-16. Removing the front cover (3 of 3)
Note
7. Remove the front cover.
When reassembling, make sure the tabs on the top of the front cover are in place and secure
then press the bottom of the front cover into place.
ENWW Covers 69
Internal assemblies
This section describes the removal of internal assemblies. Replacement is accomplished by
following the removal steps in reverse. Reassembly notes are included where reversal of
removal steps requires additional information.
Note
CAUTION
CAUTION
When replacing internal assemblies, ensure that any component parts that are not provided
with the new assembly get transferred from the failed assembly to the new assembly. For
example, sensor PCBs are not included with the fuser assembly or the paper pickup
assembly. The sensor PCB from the failed assembly must be transferred to the new
assembly.
Transfer roller assembly
Before proceeding, make sure it is absolutely necessary to remove the transfer roller.
Be very careful not to break the paper guide that is removed during replacement of the
transfer roller. This is not a replaceable part, so breaking it would require printer replacement.
Do not touch the black sponge portion of the transfer roller.
1. Open the print cartridge door and remove the print cartridge.
2. Release the two tabs on the paper guide and rotate it up (figure 5-17).
Figure 5-17. Removing the transfer roller (1 of 3)
70 Chapter 5 Removal and replacement ENWW
3. The clamps on the paper guide fit over the bearings on the right and left ends of the
transfer roller. Do not touch the sponge part of the transfer roller, but grasp the right end
of the paper guide (callout 1, figure 5-18) and pull the clamp off the right bearing. Then
slide it slightly to the right, and the left clamp will slide off the left bearing.
Figure 5-18. Removing the transfer roller (2 of 3)
ENWW Internal assemblies 71
4. Use needle-nose pliers or your fingers to squeeze the two small tabs (figure 5-19) on the
transfer roller.
Figure 5-19. Removing the transfer roller (3 of 3)
Note
5. Angle the transfer roller up holding onto the gear on the right side, slide it toward printerright, and lift it out of the printer along with the transfer roller guide.
There is a small grounding spring under the right bearing of the transfer roller. Upon
reassembly, position this spring correctly under the right bearing. Install the new transfer
roller, reversing the removal process. Then reinstall the paper guide by gently pressing the
two ends onto the transfer roller bearings until the clamps snap into place. Rotate the paper
guide down until the tabs on both ends engage.
Engine power assembly
1. Remove the right side cover.
2. Remove the left side cover.
3. Remove the print cartridge access door.
4. Remove the rear panel.
5. Remove the front cover.
6. Disconnect the five cables (callout 1, figure 5-20) near the top of the power assembly.
72 Chapter 5 Removal and replacement ENWW
7. Remove 4 screws (callout 2, figure 5-20).
1
Figure 5-20. Removing the engine power assembly (1 of 2)
2
8. Remove 2 screws from the back of the printer (callout 1, figure 5-21).
Note
Be aware of the two springs behind the engine power assembly to avoid losing them.
Figure 5-21. Removing the engine power assembly (2 of 2)
Note
When reinstalling the engine power assembly, ensure that the cable guide is properly
installed, clipping it onto the PCB at the top back corner and onto the metal casing.
1
Fuser (fixing) assembly
1. Remove the right side cover.
2. Remove the left side cover.
3. Remove the print cartridge access door, fuser cover, and rear panel.
ENWW Internal assemblies 73
4. Disconnect cables, as necessary, from near the top of the engine power assembly and
disconnect the large grounding wire from the back of the printer.
5. Unroute the wire harnesses, as necessary, to free up the fuser assembly.
6. Remove 3 screws (callout 1, figure 5-22). (Figure shows delivery sensor PCB removed,
which is not necessary).
1
Figure 5-22. Removing the fuser (fixing) assembly
7. Lift the right (printer right) end of the fuser assembly and remove.
Note
When replacing the fuser assembly, be sure to transfer the delivery sensor PCB from the old
fuser to the new one.
CAUTION
A plastic tab on the left (printer-left) side of the fuser assembly fits into the sheet metal. When
installing the fuser assembly, avoid breaking this tab.
74 Chapter 5 Removal and replacement ENWW
Figure 5-23. Fragile tab on fuser assembly
Paper pickup assembly
1. Remove the right side cover.
2. Remove the left side cover.
3. Remove the print cartridge access door and rear panel.
4. Remove the transfer roller.
5. Remove the fuser assembly.
6. Unplug and unroute any additional wires as necessary to free up the paper pickup
assembly. Unplug and unroute the wire from the solenoid to the formatter.
7. Remove 6 screws (callout 1, figure 5-24).
1
Figure 5-24. Removing the paper pickup assembly
8. Remove the paper pickup assembly.
ENWW Internal assemblies 75
Note
When replacing the paper pickup assembly, be sure to transfer the sensor PCB and, if
necessary, the separation pad assembly to the new paper pickup assembly.
Engine control unit assembly
1. Remove the right side cover.
2. Disconnect the flat flexible (ribbon) cable from the formatter.
1
Figure 5-25. Removing the ECU assembly (1 of 5)
3. Remove the left side cover.
4. Disconnect the flat flexible (ribbon) cable from the engine power assembly.
1
Figure 5-26. Removing the ECU assembly (2 of 5)
76 Chapter 5 Removal and replacement ENWW
5. Open the print cartridge access door.
6. Remove the front cover.
7. Remove four screws (callout 1, figure 5-27).
1
Figure 5-27. Removing the ECU assembly (3 of 5)
8. Lift the ECU cover up just enough to free it and tilt it back as far as it will easily go.
9. Two sheet metal hook hinges (one on each side) secure the cover.
Figure 5-28. Removing the ECU assembly (4 of 5)
10. Push both hooks free with a screwdriver to remove the ECU cover.
ENWW Internal assemblies 77
11. Disconnect one ribbon cable and the connector to the step motor (callout 1, figure 5-29).
Remove one screw (callout 2, figure 5-29). Remove the plastic retaining clip from the
formatter ribbon cable and loosen the tape (callout 3, figure 5-29). As you are removing
the ECU, unplug the additional connector going to the laser scanner assembly.
1
2
3
Figure 5-29. Removing the ECU assembly (5 of 5)
12. As you are removing the ECU, unplug one additional connector going from the ECU PCB
to the laser scanner assembly.
Note
When reinstalling the ECU metal casing, ensure that the laser scanner cover lever is properly
inserted through the plastic guide.
Laser scanner assembly
1. Remove the right side cover.
2. Remove the left side cover.
3. Remove the front cover.
78 Chapter 5 Removal and replacement ENWW
4. Remove ECU assembly.
5. Remove four screws (callout 1, figure 5-30).
Figure 5-30. Removing the laser scanner assembly
1
Note
When replacing the laser scanner assembly, be sure to transfer the laser shudder arm from
the old assembly to the new one.
ENWW Internal assemblies 79
80 Chapter 5 Removal and replacement ENWW
Troubleshooting
This chapter describes how to isolate and resolve printer problems, image problems, and
media problems. Troubleshooting details are provided to resolve problems or to isolate
replaceable parts.
Basic troubleshooting..............................................................................................................82
Control panel power-on functions...........................................................................................84
Power-on Functions: Time Ranges..................................................................................84
Control Panel Pages...............................................................................................................86
Control Panel Pages: Time Ranges.................................................................................86
Control Panel Lights................................................................................................................87
Control Panel Light Patterns.............................................................................................87
Fatal Errors.......................................................................................................................91
Image troubleshooting............................................................................................................92
Print cartridge problems...................................................................................................92
Solving image-quality problems .......................................................................................92
Solving paper-feed problems..................................................................................................99
Solving print paper-feed problems....................................................................................99
Functional checks.................................................................................................................103
Half self-test functional check.........................................................................................103
Drum rotation functional check ......................................................................................105
High-voltage contacts check...........................................................................................105
Troubleshooting tools ...........................................................................................................107
Repetitive image defect ruler..........................................................................................107
Circuit diagram ..............................................................................................................108
Solenoid, sensors, and switches...........................................................................................109
ENWW 81
Basic troubleshooting
Table 6-1. Basic troubleshooting
Issue Cause Solution
Did the printer turn on? No power due to failed power
source, cable, or switch.
Printer motor does not rotate. 1. Verify that the print
1. Verify that the product is
plugged in.
2. Verify that the power cable
is functional and that the
power switch is on.
3. If all of these conditions are
correct, replace the engine
power assembly.
cartridge access door is
closed.
2. Verify that the print path is
clear. If clear, verify that the
print path paper sensor
arms are free of debris and
functional.
3. Verify that the cable from
the ECU to the motor is
connected.
4. If all of these conditions are
correct, replace the ECU.
5. If, after replacing the ECU,
the printer motor still does
not rotate, replace the
engine power assembly.
Is the product ready?
The motor rotates, but the lights
are not on.
Does the demo page print?
Print a demo page by pressing
the Go button when the printer
is idle. Hold down the Go button
for more than 5 seconds to print
a configuration page.
6. If, after replacing the ECU
and engine power
assembly, the printer motor
still does not rotate, replace
the printer.
Formatter is damaged or has a
loose connection.
Media does not move smoothly
through the paper path.
Poor print quality. See Image troubleshooting
Verify that the formatter cables
are properly connected. If all
cables are undamaged and
seated correctly but the problem
persists, replace the printer.
If the media is consistently
jamming and the paper path is
clear, replace either the paper
pickup assembly or the fuser,
depending on where it is
jamming.
82 Chapter 6 Troubleshooting ENWW
Issue Cause Solution
Is the software installed
correctly?
Does the product print from the
computer?
Connect the USB cable (or
parallel if preferred with the HP
LaserJet 1015) to the printer
and the computer. Print a test
page from the printer properties
box or print from an application
like Notepad.
Software is not installed
correctly, or an error occurred
during software installation.
The cable is not connected
correctly.
An incorrect driver is selected. Select the proper driver.
Other devices are connected to
the parallel port.
There is an LPT port driver
problem in Microsoft Windows.
Uninstall and then reload the
product software. Make sure
you use the correct installation
procedure and the correct port
setting.
Reconnect the cable.
Disconnect the other devices
and try again to print.
Correct or reset the computer’s
port settings.
ENWW Basic troubleshooting 83
Control panel power-on functions
Powering on the printer while pressing the Go button for varying amounts of time accesses
important printer functionality for resetting the printer, resetting NVRAM, and performing selftests. The general procedure for initiating a power-on function is as follows (refer to the table
for specific time ranges for the desired function):
1. Power off the device.
2. Press and hold the Go button.
3. Power the device back on while holding the Go button for the amount of time specified in
the table below for the desired function.
4. Release the Go button.
Note
Be sure that the light status is indicating the desired power-on function when the Go button is
released. If the light status is different than desired when the Go button is released, start the
procedure at step 1.
Power-on Functions: Time Ranges
Power-on Function Time-Range
(seconds)
Cold reset Release Go 10 to 20
seconds after power-
up.
Continuous self-test Release Go 20 to 30
seconds after powerup.
Light Status Results and Notes
Attention: ON The lights begin cycling
from front to back. The
cold-reset process will
run until completion
and the printer will go
to the Ready state.
Attention: ON
Ready: ON
The Ready light blinks
indicating that the
device is in the
continuous self-test
mode. To terminate the
continuous self-test,
press Go.
NVMEM initialization Release Go 30 to 40
seconds after powerup.
Error report Release Go 40 to 50
seconds after powerup.
Attention: ON
Ready: ON
Go: ON
Ready: ON
Go: ON
The lights begin cycling
from front to back. The
NVMEM initialization
process will run until
completion and the
printer will go to the
Ready state.
The printer produces
an error report showing
the most recent error.
84 Chapter 6 Troubleshooting ENWW
NVMEM super
initialization
Release Go more than
50 seconds after
power-up.
Ready: ON
Note
After releasing Go, all
lights will blink in
unison for three
seconds. Press and
hold Go again. All
lights will turn off. In
the next 3 seconds,
the lights will turn on
one at a time. When
all are lit, release Go.
The initialization will
run to completion and
the printer will return to
the ready state.
ENWW Control panel power-on functions 85
Control Panel Pages
When the printer is in the ready state, pressing the Go button for varying amounts of time
accesses important printer reports. The general procedure for initiating the power on actions
is as follows (refer to the table for specific time ranges for each action):
1. Ensure that only the Ready light is on.
2. Press and hold the Go button.
3. Release the Go button after the amount of time shown in the table for the desired output.
Control Panel Pages: Time Ranges
Control Panel Page Time-Range
(seconds)
Demo Page Release Go after 0 to 4
seconds.
Configuration Report Release Go after 5 to 9
seconds.
Cleaning Page Release Go after 10
seconds.
Light Status Results and Notes
Ready: Blinks Printer outputs a demo
page.
Go: ON Printer outputs a
configuration report.
Go: ON
Attention: ON
Ready: ON
The printer will run
through a cleaning
cycle using the loaded
media. Best cleaning
results when using a
transparency as media.
86 Chapter 6 Troubleshooting ENWW
Control Panel Lights
The printer displays status and errors through patterns of the Go, Ready, and Attention lights.
If any lights are blinking, the error is usually resolvable. In all cases:
1. If the error pattern occurs when printing, try pressing the Go button to continue.
2. Ensure that the print cartridge is properly installed and the print cartridge access door is
closed.
3. Cycle the printer power.
Control Panel Light Patterns
The lights on the printer, from back to front, are the Go, Ready, and Attention lights. Each
light can be on solid, or blinking. All three can blink in sequence (cycling). In this document,
the states of the lights are represented as follows:
On
Off
Blinking
Go
Ready
Attention
Figure 6-1. Control panel lights legend
Printer Status Lights Description
Initialization/Startup
Re-Config Initialization
Cycling
Go
Ready
Attention
Go
Ready
In the Initialization/Startup
State, the lights cycle one after
another in a front to back
pattern (the "landing lights"
pattern). Pressing buttons has
no effect.
When a power-on function is
activated (i.e., Cold-Reset or
NVRAM-Initialization) the lights
cycle as in the startup state.
Pressing buttons has no effect.
Attention
Ready - The device is ready
with no job activity
Go
In the Ready state, the Ready
light is on and the Go and
Attention lights are off. In this
Ready
state, the printer has no errors
and is ready to receive data.
Attention
Pressing Go prints a demo
page.
ENWW Control Panel Lights 87
Printer Status Lights Description
Processing data - Device is
processing or receiving data
Job Cancel
Go
Ready
Attention
Go
Ready
Attention
In the Data Processing state,
the Ready light is blinking and
the Go and Attention lights are
off. Pressing Go cancels the
current job without printing
another non-picked page. The
printer returns to the Ready
state after the job has been
canceled.
In the Job Cancel state, all the
lights cycle. Pressing Go has no
effect. Once the job cancel
process is complete, the printer
goes to the Ready state.
88 Chapter 6 Troubleshooting ENWW
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