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1 Printer Specifications
Printer description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Hardware description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Firmware description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
FCC compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Environmental Product Stewardship Program . . . . . . . . . . . . . . .14
Material safety data sheet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Additional product stewardship . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Regulatory statements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
2 Product Operation
LaserJet 1100 control panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
Printer key functionality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
Scanner control panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
Printer paper handling. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
Toner cartridge information . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
Warranty statement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
3 Functional Overview
Basic functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
Printer functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
Engine Control Unit (ECU)/power system. . . . . . . . . . . . . . . . . . .40
Formatter system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
Image formation system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47
EN
Protecting the Environment . . . . . . . . . . . . . . . . . . . . . . . . . .14
Environmental conformity . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Laser safety statement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Canadian DOC regulations. . . . . . . . . . . . . . . . . . . . . . . . . . .20
Korean EMI statement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
Laser statement for Finland . . . . . . . . . . . . . . . . . . . . . . . . . .21
Printer engine control system . . . . . . . . . . . . . . . . . . . . . . . .41
Power system on ECU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
Control panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45
Draft mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45
Memory Enhancement technology (MEt) . . . . . . . . . . . . . . . .45
Enhanced I/O . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45
Page Protect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45
PJL Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46
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   Summary of Contents for HP LaserJet 1100

  • Page 1

    2 Product Operation LaserJet 1100 control panel ......23 Printer key functionality ....... . .26 Scanner control panel .

  • Page 2: Table Of Contents, Removal And Replacement

    Toner cartridge ........47 Printer paper feed system .......49 Paper jam detection .

  • Page 3: Table Of Contents

    Internal assemblies ........81 Scanner assembly removal ......81 Output roller removal .

  • Page 4: Table Of Contents

    Document scanner cable removal ....107 Document scanner cable removal (continued) ...108 Removing the hinge mechanism .

  • Page 5: Table Of Contents, Parts And Diagrams

    Printer paper path ....... . .150 Document paper path ......151 Repetitive image defect ruler .

  • Page 6: Table Of Contents

    Printer Specifications Chapter Contents: Printer description ..........7 Hardware description .

  • Page 7: Printer Description

    Printer description The HP LaserJet 1100 is the next generation low-cost HP LaserJet printer. It provides 600 dots-per-inch (dpi) LaserJet features and add-on scanner capabilities at the lowest possible price. The scanner is 300 dpi/8 bits per pixel (bpp) and contains an automatic document feed (ADF) holding up to 20 pages.

  • Page 8: Hardware Description

    Slot. Both trays are center justified for all supported paper sizes. The output tray holds up to 100 sheets. The LaserJet 1100 has a very fast first-page-out, at less than twenty seconds. It has a Control Panel containing two LEDs. A third LED is located on the Go Key. The formatter board contains four MB of ROM, two MB of RAM, and a 32-bit MCF5202 chip.

  • Page 9: Firmware Description

    Memory Enhancement technology (MEt) with Hardware Compression/ Decompression The LaserJet 1100 firmware also has REt and Economode functionality. Scan capability for the scanner attachment includes 300 dpi and 256 levels of gray (8 bpp). Printer Specifications : Firmware description 9...

  • Page 10: Specifications

    Acoustics Noise level During printing: • 6.1 Bels sound power level (per ISO 9296) (HP LaserJet 1100 tested at 8 ppm) • Sound pressure level (bystander position): 47 dB • Sound pressure level (operator position): 55 dB During standby and sleep mode: silent Electrical specifications Power requirements •...

  • Page 11

    Table 1. Printer specifications (continued) Minimum 4.5A @ 115v; 2.5A @ 230v recommended circuit capacity Physical specifications Dimensions (1100) • Width: 367 mm (14.5 inches) • Depth: 306 mm (12.8 inches) • Height: 266 mm (14.9 inches) Weight (cartridge 7.2 kg (16.1 lb) installed) 1100A •...

  • Page 12

    Table 1. Printer specifications (continued) Print resolution 600 dots per inch (dpi) Duty cycle 7,000 single-sided pages per month Scanning Capacities and Ratings Scan Speed Up to 8 pages per minute (letter size paper) Input Capacity Up to 20 pages of regular weight 20 lb (75 g/m ) paper Minimum Paper Size 51mm x 89 mm(2”...

  • Page 13: Fcc Compliance

    Consult your dealer or an experienced radio/TV technician. Note Any changes or modifications to the printer that are not expressly approved by HP could void the user’s authority to operate this equipment. Use of a shielded interface cable is required to comply with the Class B limits of Part 15 of FCC rules.

  • Page 14: Environmental Product Stewardship Program, Protecting The Environment

    Environmental Product Stewardship Program Protecting the Environment Hewlett-Packard Company is committed to providing quality products in an environmentally sound manner. This HP LaserJet printer has been designed with several attributes to minimize impacts on our environment. This HP LaserJet printer eliminates:...

  • Page 15

    Since 1990, the HP LaserJet Toner Cartridge Recycling Program has collected more than 12 million used LaserJet toner cartridges that otherwise may have been discarded in the world's landfills. The HP LaserJet toner cartridges go to a collection center and are bulk shipped to our recycling partners who disassemble the cartridge parts for recycling.

  • Page 16: Material Safety Data Sheet

    The Toner Cartridge/Drum MSDS can be obtained by contacting the HP LaserJet Supplies website at http://www.ljsupplies.com/planetpartners/datasheets.html. If you do not have access to the Internet, try calling the U.S. HP FIRST (fax-on-demand service) at 1-800-231-9300. Use Index number 7 for a listing of the Toner Cartridge/ Drum Material/Chemical Safety Data Sheets.

  • Page 17: Additional Product Stewardship, Environmental Conformity

    The plastics used in the printer housing and chassis are technically recyclable. HP provides a product return system for customers in Germany. Many of the functional parts are recovered, tested, and reused as fully warranted service parts.

  • Page 18: Regulatory Statements

    Manufacturer's Name: Hewlett-Packard Company Manufacturer's Address: 11311 Chinden Boulevard Boise, Idaho 83714-1021, USA declares that the product Product Name: HP LaserJet 1100 Model Number: C4224A Product Options: conforms to the following Product Specifications: Safety: IEC 950:1991+A1+A2+A3+A4 / EN 60950:1992+A1+A2+A3+A4 IEC 825-1:1993 / EN 60825-1:1994 Class 1 (Laser/LED)

  • Page 19: Laser Safety Statement

    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.

  • Page 20: Canadian Doc Regulations, Korean Emi Statement

    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 Printer Specifications : Regulatory statements 20...

  • Page 21: Laser Statement For Finland

    Laser statement for Finland LASERTURVALLISUUS LUOKAN 1 LASERLAITE KLASS 1 LASER APPARAT HP LaserJet 1100 -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.

  • Page 22: Table Of Contents

    LaserJet 1100 control panel ........

  • Page 23: Laserjet 1100 Control Panel

    LaserJet 1100 control panel Hardware overview The LaserJet 1100 Control Panel consists of two LEDs and a Go key containing a third LED. There is one amber LED (the Attention LED), and two green LEDs (the Ready LED and the Go LED). The green LEDs are contained in the Go key. If the scanner is attached, there are two additional buttons.

  • Page 24

    Check the following: or paper jam The printer door is closed. The printer is in an error state. The toner cartridge is correctly installed in the printer. There are no paper jams. Product Operation : LaserJet 1100 control panel 24...

  • Page 25

    Turn the printer off and then back on. All lights are on. Push the Go key to see secondary light pattern. See Chapter 5, "Troubleshooting/ Maintenance” for details of fatal light patterns. Product Operation : LaserJet 1100 control panel 25...

  • Page 26: Printer Key Functionality

    Printer key functionality The following table contains each printer mode and the result from a short press (when the Go key is pressed for less than five seconds), and the results from a long press (when the Go key is pressed for five or more seconds). Scanner keys have no effect on printer functionality other than the sharing of power resources, which may slow down either function.

  • Page 27: Normal Printer Operation

    A form feed may occur when the LEDs on the Control Panel are showing a processing mode. This could occur if the PC sends only part of the page to the printer because the PC has not completed processing the entire page. When the Go key is pressed while data is in the printer, a form feed pending will occur.

  • Page 28: Scanner Control Panel

    Scanner control panel Copy Scan The scanner Control Panel consists of two keys; a scan key and a copy key. These keys have no effect on the printer other than contention for resources. Scan Pressing the scan key sends a message to the PC that opens the appropriate software application to start the scan or starts a scan depending on how the PC software is configured.

  • Page 29

    Table 2-2. Scanner key functionality based on printer status Copy Scan Scan Key Scan and Copy Copy Key Printer Reset Press Key Pressed Press Scanner mode Together Power on / No action No action No action No action Initialization Sleep mode Starts scan No action Starts copy if paper...

  • Page 30

    Table 2-2. Scanner key functionality based on printer status (continued) Copy Scan Scan Key Scan and Copy Copy Key Printer Reset Press Key Pressed Press Scanner mode Together Printer Paper Jam Starts scan if scan No action Starts scanning Resets the printer manager can get copy, but will wait the required...

  • Page 31

    Normal scanner operation At power up or after a Control Panel reset, the scan motor rotates to verify it is ready for operation. Scan functionality is only available through PC software. A scan can be initiated two ways: from the PC or from the scanner Control Panel. When the scan key is pressed on the scanner, it sends a signal to the PC to let it know the firmware is ready to scan.

  • Page 32: Printer Paper Handling

    Sheet Input Slot or the Paper Input Bin and press the Go key. If the LaserJet 1100 has no paper it will show the Paper Out mode (Attention LED on). When paper is loaded it will automatically pick the next page without the user having to press the Go key.

  • Page 33: Paper Size Change, Output Tray

    Legal timing is the time it takes for a legal page to go through the engine’s paper path. The LaserJet 1100 may run at legal timing if manual feed is selected. If the first manual feed page is followed by a second manual feed page, the first manual feed page will run at legal timing.

  • Page 34

    Supported paper and envelope sizes Scan: Minimum 2 x 3.5 inches Maximum 8.5 x 30 inches Copy: Letter, Legal, A4, Executive, Envelopes - Commercial 10, Monarch, C5, DL, B5, no custom Paper Input Sensor(s) None Paper size change As with the printer, the scanner has to receive paper size information on a job-by-job basis.

  • Page 35: Toner Cartridge Information

    • Hewlett-Packard has no control or process to ensure that a refilled Toner Cartridge functions at the high level of reliability of a new HP LaserJet Toner Cartridge. Hewlett-Packard also cannot predict what the long term reliability effect on the printer is from using different toner formulations found in refilled cartridges.

  • Page 36: Warranty Statement

    Warranty statement This warranty gives specific legal rights. There may also be other rights which vary from area to area. Refer to the User’s Guide for further warranty information, or see the warranty card included with the printer. Product Operation : Warranty statement 36...

  • Page 37: Table Of Contents

    Functional Overview Chapter contents Basic functions ..........38 Printer functions .

  • Page 38: Basic Functions

    • optical system (located in the optional document scanner) The HP LaserJet 1100 consists of the printer and the document scanner (HP LaserJet 1100A). Operation sequences of the printer are controlled by the ECU. Operation sequences of the document scanner are controlled by the video controller.

  • Page 39: Printer Functions

    Printer functions Printer functions are divided into six groups: ECU/power system Formatter system image formation system printer paper feed system document scanner system basic sequence of operation (formatter to printer) The following figure is a block diagram of the printer unit: To external device (host computer, etc.) via video controller LASER/SCANNER SYSTEM...

  • Page 40: Engine Control Unit (ecu)/power System

    Engine Control Unit (ECU)/power system The Engine Control Unit (ECU) coordinates all print engine activities, drives the laser, and coordinates print data from the formatter with the image formation process. The ECU also includes power supply and distribution circuitry. The ECU controls the following systems and functions: •...

  • Page 41: Printer Engine Control System

    Printer engine control system Printer laser/scanner drive Based on information received from the formatter, the ECU sends signals to the laser/ scanner assembly to modulate the laser diode “on” and “off” and to drive the laser/ scanner motor. For more information, see “Image formation system” later in this chapter.

  • Page 42: Power System On Ecu

    Power system on ECU The AC, DC, and high-voltage power supply circuits are all contained within the ECU. AC power distribution The AC power circuitry supplies AC voltage whenever the power cord is connected to the AC power source. AC voltage is distributed to the DC power supply circuitry and to the AC driver circuitry, which controls AC voltage to the fusing assembly's heating element.

  • Page 43

    High-voltage power distribution The high-voltage power supply PCA applies an overlap of DC and AC voltage to the primary charging roller and the developing roller. This circuit also applies a positive or negative DC voltage to the transfer roller according to the instructions from the ECU. This circuit also controls the image density by changing the primary AC voltage and the developing AC bias according to the print density setting.

  • Page 44: Formatter System

    Formatter system The formatter is responsible for the following: • controlling the optional document scanner • formatting and controlling copies • receiving and processing print data from the printer interface • monitoring the control panel and relaying printer status information •...

  • Page 45: Control Panel, Draft Mode, Memory Enhancement Technology (met), Enhanced I/o, Page Protect

    Go key Draft mode Depending on which printer driver is used, selecting “draft” or Economode from the printer driver allows the HP LaserJet 1100 to use approximately 50% less toner, extending the life of the toner cartridge. Memory Enhancement technology (MEt) The Hewlett-Packard Memory Enhancement technology (MEt) effectively doubles the standard memory through a variety of font and data compression methods.

  • Page 46: Pjl Overview

    PJL Overview Printer Job Language (PJL) is an integral part of configuration, in addition to the standard Printer Command Language (PCL). With standard ECP cabling, PJL allows the printer to perform functions such as: • Two-way communication with the host computer through a bi-directional Parallel connection.

  • Page 47: Image Formation System, Toner Cartridge

    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 six processes: Figure 3-4 Image formation block diagram Toner cartridge...

  • Page 48

    any previous image. In addition, a negative DC bias is applied by the charging roller to create a uniform negative potential on the drum surface. The amount of DC voltage is modified by the print density setting. Step 3 Writing stage. During this process, a modulated laser diode projects the beam onto a rotating scanning mirror.

  • Page 49: Printer Paper Feed System

    Printer paper feed system The paper input bin and the single-sheet input slot merge into one, main input area. Paper placed in either of these areas enables the paper-out sensor (PS001), which informs the ECU that paper is present. The following steps occur when the printer receives a print job: Step 1 The ECU enables the laser/scanner assembly and the motor.

  • Page 50

    Figure 3-5 Simplified paper path Paper input bin Single sheet input slot Paper sensor (PS001) Pickup roller Paper sensor (PS002) Transfer roller Toner cartridge Pressure roller Fusing unit 10 Paper exit sensor 11 Delivery rollers 12 Face-up/Face-down deflector 13 Face-down output path 14 Face-up output path Functional Overview : Printer paper feed system 50...

  • Page 51: Paper Jam Detection

    The paper out sensor (PS001), paper registration sensor (PS002), and the paper exit sensor (PS201) detect paper moving through the HP LaserJet 1100. If a paper jam is detected, the ECU immediately stops the printing process and displays a paper jam message on the control panel.

  • Page 52: Solenoid, Photosensors, And Switches

    Solenoid, photosensors, and switches The following figure shows the locations of the solenoid, photosensors, and switches. Solenoid, photosensors, and switches Pickup solenoid Enables the pickup roller. (SL001). Paper top sensor Detects the leading and trailing edges of the paper. Synchronizes (SL001).

  • Page 53: Document Scanner System (optional), Document Scanner System (optional)

    Document scanner system (optional) The document scanner system consists of the optical system and document pickup and feed systems. The optical system, also known as the contact image sensor, contains the following: • light-emitting diode (LED) array • contact glass •...

  • Page 54

    Figure 3-6 Simplified scanner document path Input path Document pickup roller Document sensor Contact image sensor (CIS) CIS roller Output path Functional Overview : Document scanner system (optional) 54...

  • Page 55: Basic Sequence Of Operation (formatter To Printer), Basic Sequence Of Operation (formatter To Printer)

    Basic sequence of operation (formatter to printer) The formatter and the ECU share information during printer operation. The ECU-to- formatter connector (J201) forms a link that operates as a serial data bus. This allows printer status, command information, and dot-image data to be passed between the two.

  • Page 56

    Figure 3-7 General timing diagram Functional Overview : Basic sequence of operation (formatter to printer) 56...

  • Page 57: Table Of Contents

    Removal and Replacement Chapter contents Removal and replacement strategy........59 Required tools .

  • Page 58: Removal And Replacement : Chapter Contents

    Delivery assembly removal ......... 84 Paper exit sensor flag removal .

  • Page 59: Removal And Replacement Strategy

    Never operate or service the HP LaserJet 1100 with the protective cover removed from the laser/scanner assembly. The reflected beam, although invisible, can damage your eyes. The sheet metal edges of the HP LaserJet 1100 can be sharp. Use caution when working the HP LaserJet 1100. CAUTION The HP LaserJet 1100 contains parts that are electrostatic discharge (ESD) sensitive.

  • Page 60: Required Tools

    Small flatblade screwdriver • Needle nose pliers • ESD mat • Pod removal tool (optional, part number BZ99-R72-8010-4) CAUTION A Posidriv screwdriver will damage screw heads on the HP LaserJet 1100. Use Phillips screwdriver only. Removal and Replacement : Required tools 60...

  • Page 61: External Assemblies And Covers, Paper Guides

    External assemblies and covers Paper guides Figure 4-1 Removing the Paper Guides Remove the clear plastic paper guides from the paper output trays and the scanner. Removal and Replacement : External assemblies and covers 61...

  • Page 62: Document Scanner Removal

    Document scanner removal Figure 4-2 Removing the Optional Scanner Unit Rotate the document scanner latch down and to the right, to the "open" position. Pull out on the bottom of the document scanner unit, then push it up slowly to clear the connector at the top of the scanner.

  • Page 63: Document Scanner Opening

    Document scanner opening Figure 4-3 Opening the Scanner Unit Note The only serviceable part inside the scanner unit is the Contact Image Sensor (CIS). Open the scanner unit by pressing the round button on the end of the unit. Removal and Replacement : External assemblies and covers 63...

  • Page 64: Contact Image Sensor Removal

    Contact image sensor removal Figure 4-4 Removing the Contact Image Sensor (Continued on Next Page) Remove the black rounded cable cover by pressing down on the small catch at the top of the cover and then sliding the cover down and back. Removal and Replacement : External assemblies and covers 64...

  • Page 65: Contact Image Sensor Removal (continued), Contact Image Sensor Removal (continued)

    Contact image sensor removal (continued) Figure 4-5 Removing the Contact Image Sensor (Continued) Gently pry open the snap connectors on each end of the Contact Image Sensor with a small flat-blade screwdriver. Rotate the unit up, grasp the CIS on each end, pry the end pin out of the plastic frame, and slowly lift it out.

  • Page 66

    Contact image sensor removal (continued) Figure 4-6 Disconnecting the CIS Wire Connector Gently pull the connector from the slot in the metal casing. Removal and Replacement : External assemblies and covers 66...

  • Page 67: Printer Door Removal

    Printer door removal Figure 4-7 Opening the Printer Door Prior to this step: Remove the Document Scanner. The printer door is hinged at the bottom. Pull out on the top of the printer door. The printer door will then swing open until two plastic stabilizer bars on each side of the cover are fully extended.

  • Page 68: Printer Door Removal (continued), Printer Door Removal (continued)

    Printer door removal (continued) Figure 4-8 Disconnecting the Stabilizer Bars To disconnect the two stabilizer bars from the front cover: Move the printer door slightly back toward the “closed” position to ease tension on the stabilizer bar connection. Using a small, flat-head screwdriver, press down on the plastic connecting snaps underneath the end of the stabilizer bar (callout 1) Push up on the end of the stabilizer bar and slide the connector out of the bracket (callout 2).

  • Page 69

    Printer door removal (continued) Figure 4-9 Storing the Stabilizer Bars CAUTION Stabilizer bars can break if they are not inserted back into their slots. Slide the stabilizer bars back into their slots. Removal and Replacement : External assemblies and covers 69...

  • Page 70

    Printer door removal (continued) Figure 4-10Removing the Paper Deflector Deflect the plastic spring on the left end of the deflector using a small flat head screwdriver. Lift the paper deflector, pivoting on the right side. Removal and Replacement : External assemblies and covers 70...

  • Page 71

    Printer door removal (continued) Figure 4-11Removing the Door from the Hinge Mechanism (continued on next page) Remove the two screws connecting the door to the hinge mechanism. Removal and Replacement : External assemblies and covers 71...

  • Page 72

    Printer door removal (continued) Figure 4-12Removing the Cover from the Hinge Mechanism (continued) 10 Pull firmly on the cover to slide it off of the hinge mechanism, disconnecting the plastic tabs on each side. Removal and Replacement : External assemblies and covers 72...

  • Page 73: Pod Removal

    Pod removal Figure 4-13Removing the Stabilizing Pods. The pods connected to the bottom of the printer must be removed before the covers of the printer can be taken off. The end of the pod removal tool marked “L” removes the left pod;...

  • Page 74: Back Cover Removal

    Back cover removal Figure 4-14Screws on Back Cover Prior to this step: Remove memory card (if applicable) and pods To Remove the Back Cover: Remove the two screws inside the deep holes in the back cover. Remove the third screw underneath the small cover over the memory door. Removal and Replacement : External assemblies and covers 74...

  • Page 75: Back Cover Removal (continued), Back Cover Removal (continued)

    Back cover removal (continued) Figure 4-15Removing the Back Cover Release the plastic tabs on the bottom left and right side of the printer. Pull out on the bottom of the cover and lift it clear of the printer. Removal and Replacement : External assemblies and covers 75...

  • Page 76: Internal Paper Guide Removal

    Internal paper guide removal Figure 4-16Removing the Paper Guide Prior to this step: Remove memory card (if applicable), pods, back cover There are no screws securing the Paper Guide. Remove it by pulling it up and out (two small snaps will release as you pull on the paper guide). Removal and Replacement : External assemblies and covers 76...

  • Page 77: Front Cover Removal

    Front cover removal Figure 4-17Removing the Front Cover (continued on next page) Prior to this step: Remove pods, front door, and scanner. Note The Hinge Mechanism cannot be easily removed until the Formatter is removed, due to the presence of the Flat Flexible Cable. Remove the two screws on the top of the front cover.

  • Page 78: Front Cover Removal (continued), Front Cover Removal (continued)

    Front cover removal (continued) Figure 4-18Removing the Front Cover (continued) Pop the plastic snaps open on the bottom left and right of the cover. Pull the bottom of the cover out and lift the cover up and away from the printer. Note During reassembly, you must realign small tongue-in-groove tabs on the left and right side of the front cover.

  • Page 79: Removing The Stabilizer Bars

    Removing the stabilizer bars Figure 4-19 Stabilizer Bars The Stabilizer Bars are secured by metal plates on each end of the printer chassis. Remove the two screws holding the metal plate at the right end of the printer chassis. Remove the remaining screw holding the metal plate at the left end of the printer. Removal and Replacement : External assemblies and covers 79...

  • Page 80: Printer Laser/scanner Cover Removal

    Printer laser/scanner cover removal Figure 4-20Removing the Printer Laser/Scanner Cover Prior to this step: Remove memory card (if applicable), pods, back cover, front door, front cover, scanner, and paper guides. Remove the four screws fastening the Printer Laser/Scanner Cover. Two of the screws are shown in the photo above (callout 1).

  • Page 81: Internal Assemblies, Scanner Assembly Removal

    Internal assemblies Scanner assembly removal Figure 4-21Disconnecting the Scanner Assembly Cables Prior to this step: Remove memory card (if applicable), pods, back cover, front door, front cover, scanner, and paper guides. Remove the small foam cover over the small cable connector. Disconnect both cable connections and remove cable from routing.

  • Page 82: Output Roller Removal

    Output roller removal Figure 4-22Releasing the Output Roller (continued on next page) Note This part can be removed without disassembling any other printer parts. Using a small flat-head screwdriver, release the plastic snap on the right end of the output roller. Removal and Replacement : Internal assemblies 82...

  • Page 83: Output Roller Removal (continued), Output Roller Removal (continued)

    Output roller removal (continued) Figure 4-23Releasing the Output Roller Snaps Slide the roller to the right, releasing it from the gear on the left. Lift the roller out of the printer. Removal and Replacement : Internal assemblies 83...

  • Page 84: Delivery Assembly Removal

    Delivery assembly removal Figure 4-24Removing the Torsion Screws on the Delivery Assembly Prior to this step: Remove output roller. Note The springs underneath the torsion screws are not attached and may come loose during removal. Remove the two screws in the front of the assembly. Removal and Replacement : Internal assemblies 84...

  • Page 85: Delivery Assembly Removal (continued), Delivery Assembly Removal (continued)

    Delivery assembly removal (continued) Figure 4-25Removing the Delivery Assembly Gently slide the assembly to the right, and lift it out of the printer. Removal and Replacement : Internal assemblies 85...

  • Page 86: Paper Exit Sensor Flag Removal

    Paper exit sensor flag removal Figure 4-26Paper Exit Sensor Flag Prior to this step: Remove the output roller and delivery assembly. Note Before proceeding, examine the paper exit sensor flag. It is important to note the position of the spring mechanism on the flag. The spring must be reinstalled to exactly this position, because installing it incorrectly will cause a control panel error message.

  • Page 87: Fusing Element Removal

    Fusing element removal Figure 4-27Metal Clips Holding Fusing Element Prior to this step: Remove scanner, pods, printer door, front cover, memory card (if applicable), output roller, and delivery assembly. Note Pay special attention to the way these metal clips are attached to the printer chassis before you remove them.

  • Page 88: Fusing Element Reaassembly

    Fusing element reaassembly Figure 4-28Reassembly of Fusing Element Clips Note During reassembly, make sure the metal clips are seated properly. The front of the metal clip has a small threaded hole. There is a corresponding hole on the printer chassis. 1.

  • Page 89: Fusing Element Removal (continued), Fusing Element Removal (continued)

    Fusing element removal (continued) Figure 4-29Releasing the Fusing Element Cable Connection, Left Side The Fusing Element has electronic cable connections on both the left and right ends, outside the printer. Disconnect the small cable on the left by gently pulling the connection apart. Removal and Replacement : Internal assemblies 89...

  • Page 90

    Fusing element removal (continued) Figure 4-30Releasing the Fusing Element Cable Connection, Right Side The larger double cable on the right end is held in place by a plastic snap. Press down on the top of the plastic snap with a flat-head screwdriver. Unwind the cable from the cable guides along the side of the printer.

  • Page 91

    Fusing element removal (continued) Figure 4-31Removing the Fusing Element After the two cables are disconnected from the right and left sides of the printer, lift the element gently out of the printer. Removal and Replacement : Internal assemblies 91...

  • Page 92: Gear Train Motor And Solenoid Removal

    Gear train motor and solenoid removal Figure 4-32Motor Cable Connection to Gear Train Cover Prior to this step: Remove pods, memory card (if applicable), scanner, back cover, printer door, paper guides, and front cover. The Gear Train, located behind the metal plate (Gear Train Cover) on the left side of the printer, must be removed to access the Pressure Roller.

  • Page 93: Gear Train Motor And Solenoid Removal (continued), Gear Train Motor And Solenoid Removal (continued)

    Gear train motor and solenoid removal (continued) Figure 4-33Gear Train Cover Remove the four screws securing the metal plate over the Gear Train and very gently release it. Removal and Replacement : Internal assemblies 93...

  • Page 94

    Gear train motor and solenoid removal (continued) Figure 4-34Removing the Gear Train Motor Note Some gears are not all held in place and may come apart during removal. Remove the two screws holding the Gear Motor to the Gear Plate Cover. Pull the Gear Motor out of the Gear Plate Cover.

  • Page 95: Solenoid Removal

    Solenoid removal Figure 4-35Solenoid removal Remove the single screw securing the solenoid to the printer chassis. Release the solenoid. Note During reassembly, rotate the clutch so that the flat spot on the clutch allows the feed roller (gear) to turn freely. Removal and Replacement : Internal assemblies 95...

  • Page 96: Pressure Roller Removal

    Pressure roller removal Figure 4-36 Removing the Pressure Roller (continued on next page) Prior to this step: Remove the scanner, pods, printer door, memory card (if applicable), paper guide, front cover back cover, output roller, delivery assembly, fuser assembly, and gear train. Using a flat-head screwdriver, remove the gear from the end of the Pressure Roller by gently prying the small plastic tab up from the slot in the end of the roller axles.

  • Page 97

    Pressure roller removal Figure 4-37Removing the Pressure Roller CAUTION This Pressure Roller is covered with light contact grease. Do not get it on your clothes. See Chapter 6, “Parts and diagrams,” for information about ordering pressure roller grease. Note The half bushing on the right of the assembly or the full bushing on the left end of the assembly are not connected to the printer chassis and may come loose during removal.

  • Page 98: Transfer Roller Removal

    Transfer roller removal Note The Transfer Roller can be removed without disassembling any other printer parts. CAUTION Do not touch the black portion of the Transfer Roller. Note A grounding spring is attached to the bottom of the left end of the Transfer Roller. This spring may come loose during assembly or removal.

  • Page 99: Pickup Roller Removal

    Pickup roller removal Figure 4-38Changing the Pickup Roller Rotate the bottom of the pickup roller towards the front of the printer. Gently pull the pickup roller straight out. Removal and Replacement : Internal assemblies 99...

  • Page 100: Paper Pick-up Assembly Removal

    Paper pick-up assembly removal Figure 4-39Accessing the Paper Pick-up Assembly Area. Prior to this step: Remove memory card (if applicable), scanner, pods, front door, front cover, back cover, paper guide, top cover, and disconnect laser/scanner. Remove the screw attached to a bracket at the right end of the cover plate (callout Remove the two top screws attached to the right and left of the plate(callouts 2 and 3).

  • Page 101: Paper Pick-up Assembly Removal (continued), Paper Pick-up Assembly Removal (continued)

    Paper pick-up assembly removal (continued) Figure 4-40Removing the Paper Pick-up Assembly Cover Note The Pickup Assembly is in several pieces; these pieces should be kept together. Lift the metal plate clear of the printer. Remove the Paper Pickup Assembly. Removal and Replacement : Internal assemblies 101...

  • Page 102: Kick Plate Removal

    Kick plate removal Figure 4-41Removing the Kick Plate Prior to this step: Remove memory card (if applicable), scanner, pods, front door, front cover, back cover, paper guide, top cover, and disconnect laser/scanner. Rotate the cam to free the Kick Plate. Rotate the Kick Plate arm up approximately 45 degrees and lift the left end up and out of the collar shaft securing it.

  • Page 103: Separation Pad Removal

    Separation pad removal Figure 4-42Snap Holding Separation Pad Prior to this step: Remove memory card (if applicable), scanner, pods, front door, front cover, back cover, paper guide, top cover, kick plate, and disconnect laser/scanner. Remove the plastic snap on the opposite side of the printer from the Kick Plate. Removal and Replacement : Internal assemblies 103...

  • Page 104: Separation Pad Removal (continued), Separation Pad Removal (continued)

    Separation pad removal (continued) Figure 4-43Removing the Separation Pad Slide the Separation Pad out through the brackets securing it. Removal and Replacement : Internal assemblies 104...

  • Page 105: Bottom Assemblies, Formatter Pan Removal

    Bottom assemblies Formatter pan removal Figure 4-44The Formatter Pan (continued on next page) Remove the three screws holding the Formatter Pan to the bottom of the printer chassis. The third screw is located on a bracket at the end of the pan. Removal and Replacement : Bottom assemblies 105...

  • Page 106: Formatter Pan Removal (continued), Formatter Pan Removal (continued)

    Formatter pan removal (continued) Figure 4-45Removing the Formatter Pan (continued) Note Be careful not to damage or break the electronic cables and connections underneath the formatter pan. Slowly rotate the Formatter Pan away from the chassis. Unplug the small connector cable and two flat flexible cables. Slide the Formatter Pan free of the metal brackets.

  • Page 107: Document Scanner Cable Removal

    Document scanner cable removal Figure 4-46Removing the ECU Pan Cable Cover Prior to this step: Remove scanner, pods, doors, back cover, front cover, and formatter. Push down and back on the plastic cable cover on the bottom of the ECU Pan (the cable cover is marked with raised directional arrows).

  • Page 108: Document Scanner Cable Removal (continued), Document Scanner Cable Removal (continued)

    Document scanner cable removal (continued) Figure 4-47Removing ECU Pan Flat Flexible Cable Remove the screw from the cable guide. Slide the flat cable and attached grounding slip out from under the holding tabs. Carefully slide the cable and grounding slip out through the opening in the printer chassis.

  • Page 109: Removing The Hinge Mechanism

    Removing the hinge mechanism Figure 4-48Hinge Mechanism Removed Slide the hinge mechanism and attached cables out of the chassis. Removal and Replacement : Bottom assemblies 109...

  • Page 110: Ecu Pan Removal

    ECU pan removal Figure 4-49ECU Pan Prior to this step: Remove scanner, pods, doors, back cover, front cover, formatter, and disconnect ECU cable. Note If fuser cables are connected, disconnect them before removing the ECU pan. Remove the two screws fastened to the brackets on the sides of the pan. Remove the two screws accessed through openings in the side of the black plastic printer chassis.

  • Page 111: Ecu Pan Removal (continued), Ecu Pan Removal (continued)

    ECU pan removal (continued) Figure 4-50Removing the ECU Pan (Continued on Next Page) Slowly lift the ECU plate away from the printer chassis. CAUTION Be very careful not to damage or break the connectors underneath the ECU plate as you lift it from the printer chassis. Reach between the plate and the chassis and unwind the cables from their cable guides until there is enough slack in the cables to allow access to the bottom of the ECU plate.

  • Page 112: Paper Feed Assembly Removal

    Paper feed assembly removal Figure 4-51Removing the Paper Feed Assembly (continued on next page) Prior to this step: Remove scanner, pods, doors, back cover, front cover, formatter, and disconnect ECU cable, and remove ECU pan. Disconnect the two cable connections. Partially unwind the cables from their cable guides.

  • Page 113: Paper Feed Assembly Removal (continued), Paper Feed Assembly Removal (continued)

    Paper feed assembly removal (continued) Figure 4-52Removing the Paper Feed Assembly (continued) Release the snap catches inside the gear on the left end of the Paper Feed Roller Shaft. Removal and Replacement : Bottom assemblies 113...

  • Page 114

    Paper feed assembly removal (continued) Figure 4-53Removing the Paper Feed Assembly (continued) Slide the Paper Feed Roller to the right and remove it from the printer chassis. Removal and Replacement : Bottom assemblies 114...

  • Page 115: Table Of Contents

    Troubleshooting/Maintenance Chapter contents Basic troubleshooting ..........116 Fatal errors/accessory errors .

  • Page 116: Basic Troubleshooting

    Basic troubleshooting Verification steps Possible problems Solutions Is Power On successful? No power. 1. Verify that the product is plugged in. When the product is connected to a 2. Verify that the power cable is functional and that the grounded power source, the printer power switch is on (220v only) motor should rotate for approximately six seconds and the document scanner...

  • Page 117

    Verification steps Possible problems Solutions Print an engine test, which is discussed Control panel displays an error Consult the list of common messages in Chapter 2, or later in this chapter. The engine test light. “Fatal errors” in this chapter to correct the error. should print without paper feed problems or print quality problems.

  • Page 118: Fatal Errors/accessory Errors

    Fatal errors/accessory errors The printer may encounter a severe error, one that inhibits further operation. All LEDs will turn on, or in the case of an Accessory Error all LEDs will start flashing. During this mode, pressing and holding the Go key down will reveal a pattern on the LEDs. Some LEDs might be on and some might be off, but it will be a non-changing pattern as long as the Go key is held down.

  • Page 119

    Service and error messages Light Status Description Recommended Action Beam Error: There are a 1. Power cycle the printer by unplugging the printer and number of causes for this plugging it back in. error, and some of the causes may disappear. 2.

  • Page 120

    Note the LED patterns on the BiTronics error code. 2. Disconnect the parallel I/O cable and try running a printer Contact HP technical self test. Reconnect the parallel cable if the self test is support with this successful and try host/printer communications again.

  • Page 121: Image Formation Troubleshooting, Checking The Toner Cartridge

    Image formation troubleshooting Checking the toner cartridge Image formation defects are many times the result of toner cartridge problems. If there is any doubt, always replace the toner cartridge before troubleshooting image defects. Use the following checklist to ensure that the toner cartridge is still operable. Ensure that the toner cartridge is seated properly.

  • Page 122: Solving Image Quality Problems

    Problem Cause Solution Parts of the page The HP LaserJet 1100 cannot print to the To get the image to fit into this printable edge of the paper. The HP LaserJet 1100 area, slightly reduce the size of the image.

  • Page 123

    Toner density setting is not adjusted Adjust the setting from the control panel. correctly. or print is not faded, but A part of the HP LaserJet 1100 is Follow the steps in “Basic troubleshooting” vertical white damaged. to isolate the problem.

  • Page 124

    Sometimes reams of paper has an arrow indicating inconsistent the print side.) stains appear. The HP LaserJet 1100 needs to be See "Cleaning procedures" in this chapter cleaned. for instructions on cleaning the product and using a cleaning page. The toner cartridge is damaged.

  • Page 125

    The toner cartridge is defective. Replace the toner cartridge. The HP LaserJet 1100 needs to be See "Cleaning procedures" in this chapter. cleaned. There is a problem in the heating element. Perform the “Heating element check,”...

  • Page 126

    Cause Solution Character voids The paper or transparencies do not meet Make sure that the media meets HP’s specifications. specifications detailed in HP’s media appear (white specifications guide. areas within the parts of characters that You are printing on the wrong surface of Remove the paper and turn it around.

  • Page 127

    The moisture content of the paper is Make sure that the media meets inconsistent or the paper has moist or wet specifications detailed in HP’s media spots on the surface. specifications guide. The paper was damaged by inconsistent Make sure that the media meets manufacturing processes.

  • Page 128

    Problem Cause Solution Your HP LaserJet 1100 is feeding two or Remove the paper from the paper input more sheets of paper at a time because bin and align the edges of the paper. the paper is difficult to separate “Break”...

  • Page 129

    The paper’s weight or surface finish does Make sure that the media meets not meet HP’s specifications. specifications detailed in HP’s media specifications guide. Scanned images There is ink, glue, white-out, or some See "Cleaning procedures" in this chapter.

  • Page 130

    Problem Cause Solution The original is on colored paper. If the original was on colored paper, including brown recycled paper, the text may not be clear. Try adjusting the resolution, contrast, and/or brightness settings from the tool box on the Document Assistant.

  • Page 131: Solving Paper Feed Problems

    Solving paper feed problems Use the following table to solve problems related to moving paper or documents through the HP LaserJet 1100 . Problem Cause Solution Pages are Paper is curled or wrinkled when using the Use the front paper output slot by pushing paper output bin.

  • Page 132

    Also try turning the paper around to feed the opposite end first, or use a different type of paper. The paper does not meet HP’s Make sure that the media meets specifications for print media. specifications detailed in HP’s media specifications guide.

  • Page 133

    The item was too thick, too slick, or Make sure that the media meets otherwise did not meet specifications. specifications detailed in HP’s media specifications guide. The document scanner pickup roller or See "Cleaning procedures" in this chapter. separation pad is dirty and cannot feed the document.

  • Page 134

    Problem Cause Solution Items loaded in The item is on a very lightweight media. Do not try to pull the page out because you may damage the document scanner. the document Open the document release door and feeder tray fall remove the jammed media.

  • Page 135: Cleaning Procedures, Cleaning The Toner Cartridge Area, Cleaning The Printer Paper Path

    Cleaning procedures Cleaning the toner cartridge area With a dry, lint-free cloth, wipe any residue from the paper path area and the toner cartridge cavity. Note Cleaning the toner cartridge area is not necessary on a regular basis. Before cleaning, look for excessive toner in the compartment.

  • Page 136: Cleaning The Scanner

    WARNING! Alcohol is flammable. Keep the alcohol and cloth away from open flame. Allow alcohol to dry completely before closing the printer and plugging in the power cord. Using a dry, lint-free cloth, wipe the pickup roller to remove loosened dirt. Allow the pickup roller to completely dry before reinstalling it in the printer.

  • Page 137

    Dampen a clean, cotton cloth with rubbing alcohol (pH7 or neutral pH) or glass cleaner. Gently rub back and forth on the white CIS roller with the damp cloth while slowly turning the CIS roller. WARNING! Alcohol is flammable. Keep the alcohol and cloth away from open flame. Allow alcohol to dry completely before plugging in the power cord.

  • Page 138: Functional Checks, Engine Test

    Engine test button location The engine test switch is accessible without removing the covers. It is located on the back of the HP LaserJet 1100 under the memory door. New picture here: now behind memory door on back of printer...

  • Page 139: Self Test Page

    Self test page The Self Test Page (Figure 5-2) printout provides both a means of testing the printer and a way of displaying the printer's configuration. The Self Test Page Printout does not run a diagnostic Self Test (unlike previous printers) but it still tests the functionality of the printer by being able to format data and place it accurately on the page.

  • Page 140: Half-self Test Functional Check

    permanent fonts, but if the memory is too low a message “Font Test Aborted” is printed. In some low-memory situations a reduced Self Test Page may be printed, but the font printout may have enough memory to print all downloaded permanent fonts. Half-self test functional check The electrophotographic process can be subdivided into the following stages: •...

  • Page 141: Drum Rotation Functional Check, Heating Element Check

    Paper passes between the heating element and a soft pressure roller to fuse toner to the paper. To verify that the heating element is functioning correctly: Unplug the HP LaserJet 1100 for at least ten minutes. Verify that the thermistor connector (Figure 5-3) is seated into both the printer chassis and the ECU (for printer disassembly instructions, see Chapter 4, "Removal and replacement."...

  • Page 142

    Figure 5-3 Thermistor Connector Remove the heating element connector (Figure 5-4) from the ECU. To measure the continuity of the heating element, measure the resistance between the two pins at the end of the cable. Figure 5-4 Heating Element Connector Troubleshooting/Maintenance : Functional checks 142...

  • Page 143

    Note Normal resistance is 30 ohms +/- 10 ohms. If no resistance is measured, replace the heating element. Remove the thermistor connector (Figure 5-3) and measure the resistance between pins one and two. Note Normal resistance is 440K ohms +/- 30K ohms at 68° F (20° C). If no resistance is measured, replace the heating element.

  • Page 144: High-voltage Power Supply Check

    High-voltage power supply check The high-voltage power supply PCA provides the necessary voltages for the electrophotographic processes. Checking the toner cartridge connection points Visually inspect the three connection points on the underside, right end of the toner cartridge: charging (callout 1), drum ground (callout 2), and developing roller (callout 3).

  • Page 145: Paper Curl, Paper Path Check

    Figure 5-6 High-voltage connector assembly Paper curl Paper curl is inherent to the laser printing processes, and occurs when paper is subjected to heat. Paper curl tends to relax as the paper cools while resting on a flat surface. The specification for maximum paper curl when the paper is lying flat before print is 0.2 inches (5 mm).

  • Page 146: To Override Sw301

    To override SW301 Figure 5-7 Overriding SW301 Remove the printer covers. Make sure the fuser levers on the Delivery Assembly are closed. Press SW301- front door interlock (callout 1). Press Laser/Scanner Interlock Switch on Laser/Scanner (callout 2) While SW301and Laser/Scanner Interlock is engaged, perform an Engine Test to observe paper motion.

  • Page 147: Servicemode Functions (pjl Software Commands), Servicemode Functions (pjl Software Commands), Servicemode Functions (pjl Software Commands)

    ServiceMode functions (PJL Software Commands) To set the following NVRAM variables: Factory printer DEFAULT PAPER, scanner factory default paper size will be set to the same value automatically if one is attached. Factory printer DEFAULT LPARM:PCL SYMSET. Factory DEFAULT OEM bit. Factory DEFAULT PRINTPAGECOUNT Factory DEFAULT SCANPAGECOUNT if scanner is attached.

  • Page 148

    "LETTER", "LEGAL, "A4", DEFAULT PAPER "EXECUTIVE”, "COM10”, "MONARCH”, "DL”, "C5”, "B5", "CUSTOM" DEFAULT LPARM :PCL SYM SET DEFAULT OEM “ON”, “OFF” DEFAULT PRINTPAGECOUNT 0-2147483647 DEFAULT SCANPAGECOUNT 0-2147483647 DEFAULT COPYPAGECOUNT 0-2147483647 CLEARNVRAM None - Command NVRAM INIT None - Command Figure 5-8 NVRAM PJL Factory Variables To use these commands you need some method of sending PJL commands to the printer, either with a software tool or by copying down a binary file containing the...

  • Page 149

    To create these files you will need a editor that can insert the ESC character, or be able to copy it in from a existing file. If a software tool is used, just send down the same strings, in the same order as given for the example files. Troubleshooting/Maintenance : ServiceMode functions (PJL Software Commands) 149...

  • Page 150: Troubleshooting Tools, Printer Paper Path

    Troubleshooting tools Printer paper path Figure 5-9 Paper path and components Troubleshooting/Maintenance : Troubleshooting tools 150...

  • Page 151: Document Paper Path

    Document paper path Figure 5-10 Document path and components Troubleshooting/Maintenance : Troubleshooting tools 151...

  • Page 152: Repetitive Image Defect Ruler

    Repetitive image defect ruler First occurrence of print defect Developing cylinder 32 mm (1.25 in) Primary charging roller 38 mm (1.5 in) Delivery roller 37.7 mm (1.48 in) Transfer roller 45 mm (1.8 in) Pressure roller 62.8 mm (2.5 in) Upper heating element film 76 mm (3.0 in) Toner cartridge photosensitive drum 76 mm (3.0 in) Repetitive image defect ruler...

  • Page 153: Main Wiring

    Main wiring II. GENERAL CIRCUIT DIAGRAM ONER FU701 CAR TRIDGE J702F J702M H701 CONNECT FIXING FILM UNIT J102F J102M J703M Film SW101(200V only) J703F INL101 J009M J009F J206M J206F FSRTH J304 J302 J301 J303 J008F J008M J209M +24V TONERS J305 ENGINE CONTROLLER PCB PRESSURE ROLLER PS201...

  • Page 154

    Troubleshooting/Maintenance : Troubleshooting tools 154...

  • Page 155: Table Of Contents

    Parts and diagrams Chapter contents How to use the parts lists and diagrams ....156 Parts and supplies........157 Ordering Information .

  • Page 156: How To Use The Parts Lists And Diagrams

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

  • Page 157: Parts And Supplies

    Use only accessories specifically designed for this printer. Accessories can be ordered from an authorized service or support provider. All standard part numbers listed are stocked and may be ordered from HP’s Support Materials Organization (SMO), or Support Materials, Europe (SME).

  • Page 158: Ordering Information

    Ordering Information You can increase the capabilities of the printer with optional accessories and supplies. Use accessories and supplies specifically designed for the HP LaserJet 1100 Printer and the HP LaserJet 1100A Printer•Copier•Scanner to ensure optimum performance. Parts and diagrams : Parts and supplies 158...

  • Page 159: Consumables And Accessories, Ordering Consumables

    Consumables and accessories The following items are available through a local authorized HP dealer. To find a dealer near you (or if your dealer is temporarily out of stock), call the HP Customer Information Center at (800) 752-0900. DESCRIPTION PART # EST.

  • Page 160

    • SME (Support Materials Europe) (49 7031) 142253 Contact a local HP Parts Coordinator for other local phone numbers. Parts that have no reference designator or part number are not field replacement parts and cannot be ordered through SMO. Parts and diagrams : Consumables and accessories 160...

  • Page 161: Common Hardware

    Common hardware Common fasteners Example Description Screw, machine, truss head Screw, star Screw, self-tapping Screw, hex-head Screw, hex-head, star Parts and diagrams : Common hardware 161...

  • Page 162

    Figure 6-1 External Covers, Panels, Etc. Parts and diagrams : Common hardware 162...

  • Page 163

    External covers, panels, etc. parts list KEY #. PART # DESCRIPTION RF5-2827-000CN COVER, FRONT RF5-2828-000CN COVER, REAR RB2-4014-000CN MEMORY DOOR RB2-4018-000CN POD, LEFT RB2-4019-000CN POD, RIGHT RB2-4020-000CN INPUT PAPER SUPPORT RB2-4021-000CN OUTPUT/SCANNER PAPER SUPPORT RG5-4601-000CN SINGLE SHEET BIN RG5-4602-000CN INPUT PAPER BIN RG5-4604-000CN PRINTER DOOR XB2-7300-607CN...

  • Page 164

    Figure 6-2 Document Scanner Document scanner parts list KEY #. PART # DESCRIPTION R37-5000-000CN SCANNER ASS’Y RG5-4561-000CN CONTACT IMAGE SENSOR Parts and diagrams : Common hardware 164...

  • Page 165

    Figure 6-3 Internal components, 1 of 4 Parts and diagrams : Common hardware 165...

  • Page 166

    Parts list, internal components 1 of 4 KEY #. PART # DESCRIPTION XA9-0605-000CN SCREW, M4X8 RB2-4017-000CN HOLDER, FLAT CABLE RB2-4030-000CN COVER, HOLDER RB2-3951-000CN ELIMINATOR, STATIC CHARGE RG5-4586-000CN DRIVE ASS'Y RH7-1404-000CN MAIN MOTOR XB6-7300-609CN SCREW, M3X6 RB2-3959-000CN SPRING, LEAF, LEFT RB2-4006-000CN GUIDE, FACE DOWN DELIVERY RY7-5051-000CN CLUTCH KIT...

  • Page 167

    Figure 6-4 Internal components, 2 of 4 Parts and diagrams : Common hardware 167...

  • Page 168

    Parts list, internal components 2 of 4 KEY #. PART # Q'TY DESCRIPTION RG5-4584-000CN ROLLER HOLDER ASS'Y RB2-4001-000CN MOUNT, DISPLAY PCB RG5-4570-000CN LASER/SCANNER ASS'Y RB2-3943-000CN SHAFT RB2-3944-000CN SPRING, LEAF RB2-3945-000CN FOOT RB2-3949-000CN RB2-3931-000CN ROLLER RB2-3932-000CN PLATE, SCANNER RB2-3930-000CN ROLLER SHAFT RB2-4026-000CN ROLLER, PAPER PICK-UP RG5-4585-000CN...

  • Page 169

    Figure 6-5 Internal components, 3of 4 Parts and diagrams : Common hardware 169...

  • Page 170

    Parts list, internal components 3 of 4 KEY # PART # DESCRIPTION RB2-3941-000CN GUIDE, ARM, LEFT RB2-3942-000CN GUIDE, ARM, RIGHT RB2-3947-000CN HOLDER, PAD RF5-2832-000CN ARM, PAD RB2-3960-000CN FLAG, SENSOR RB2-3961-000CN TORSION SPRING RF5-2818-000CN GUIDE, CARTRIDGE, LEFT RF5-2819-000CN GUIDE, CARTRIDGE, RIGHT RF5-2822-000CN ROLLER, FACE-UP RF5-2830-000CN...

  • Page 171

    Figure 6-6 Internal components, 4 of 4 Parts and diagrams : Common hardware 171...

  • Page 172

    Parts list, internal components 4 of 4 KEY # PART # DESCRIPTION RY7-5050-000CN SUBPAD KIT RG5-4592-000CN FIXING PRESSURE ASS'Y, RIGHT RB2-3939-000CN BUSHING, RIGHT RB2-3940-000CN SPRING, COMPRESSION RB2-3950-000CN GUIDE, TRANSFER RB2-3956-000CN BUSHING, LEFT RB2-3957-000CN BUSHING, RIGHT RG5-4593-000CN DELIVERY ASS'Y PENDING DEVELOPER FASTENER KIT RF5-2823-000CN ROLLER, PRESSURE RH7-5227-000CN...

  • Page 173

    Figure 6-7 Feeder assembly Parts and diagrams : Common hardware 173...

  • Page 174

    Feeder assembly parts list KEY # PART # DESCRIPTION RB2-3912-000CN FEED ROLLER RG5-4581-000CN FEEDER ASS'Y Parts and diagrams : Common hardware 174...

  • Page 175

    Figure 6-8 Engine controller assembly Parts and diagrams : Common hardware 175...

  • Page 176

    Engine controller assembly parts list KEY # PART # Q'TY DESCRIPTION RB1-7303-000CN SPACER, PCB RB2-3984-000CN CASE, PRINTER CONTROLLER RB2-3985-000CN SHEET, INSULATING RB2-3986-000CN HOLDER, POWER SWITCH LEVER RB2-3987-000CN LEVER, POWER SWITCH RB2-3988-000CN ROD, SWITCH RH2-5381-000CN FLAT CABLE, (J201) VS1-5057-002 CN CONNECTOR, 2P , (J008) RG5-4599-000CN DOOR SENSOR ASS'Y RG5-4618-000CN...

  • Page 177

    Figure 6-9 Formatter pan Formatter pan parts list KEY # PART # Q'TY DESCRIPTION RB2-3992-000CN FORMATTER PLATE C4146-67901 FORMATTER 0515-2672 FORMATTER SCREWS Parts and diagrams : Common hardware 177...

  • Page 178: Parts List Sorted By Part Number

    Parts list sorted by part number Part Number Description Table # Key # 0515-2672 FORMATTER SCREWS C4146-67901 FORMATTER CK-8006 PRESSURE ROLLER GREASE PENDING DEVELOPER FASTENER KIT R56-2124-000CN COMPRESSION SPRING RB1-7303-000CN SPACER, PCB RB2-3912-000CN FEED ROLLER RB2-3930-000CN ROLLER SHAFT RB2-3931-000CN ROLLER RB2-3932-000CN PLATE, SCANNER RB2-3939-000CN...

  • Page 179

    Part Number Description Table # Key # RB2-4021-000CN OUTPUT/SCANNER PAPER SUPPORT RB2-4026-000CN ROLLER, PAPER PICK-UP RB2-4030-000CN COVER, HOLDER RB2-4034-000CN MOUNT, ARM RB2-4034-000CN MOUNT, ARM RB2-4049-000CN PLATE, GROUNDING RB2-4219-000CN PLATE, GROUNDING RF5-2818-000CN GUIDE, CARTRIDGE, LEFT RF5-2819-000CN GUIDE, CARTRIDGE, RIGHT RF5-2822-000CN ROLLER, FACE-UP RF5-2823-000CN ROLLER, PRESSURE RF5-2827-000CN...

  • Page 180

    Part Number Description Table # Key # RH7-5227-000CN SOLENOID -(SL001, J204) RS5-2502-000CN SPRING, COMPRESSION RS6-2122-000CN SPRING, COMPRESSION RY7-5049-000CN GEAR KIT RY7-5050-000CN SUBPAD KIT RY7-5051-000CN CLUTCH KIT VS1-5057-002 CN CONNECTOR, 2P , (J008) WT2-5041-000CN TIE, CABLE XA9-0267-000CN SCREW, TP, M3X6 XA9-0605-000CN SCREW, M4X8 XA9-0605-000CN SCREW, M4X8...

  • Page 181: Parts List Sorted By Part Name

    Parts list sorted by part name Part name Part Number Table # Key # ARM HOLDER ASS'Y LEFT RG5-4587-000CN ARM HOLDER ASS'Y RIGHT RG5-4588-000CN ARM, PAD RF5-2832-000CN BUSHING, LEFT RB2-3956-000CN BUSHING, RIGHT RB2-3939-000CN BUSHING, RIGHT RB2-3957-000CN RB2-3949-000CN CASE, PRINTER CONTROLLER RB2-3984-000CN CLUTCH KIT RY7-5051-000CN...

  • Page 182

    Part name Part Number Table # Key # GUIDE, FACE DOWN DELIVERY RB2-4006-000CN GUIDE, FIXING RB2-3958-000CN GUIDE, TRANSFER RB2-3950-000CN HOLDER, FLAT CABLE RB2-4017-000CN HOLDER, PAD RB2-3947-000CN HOLDER, POWER SWITCH LEVER RB2-3986-000CN INPUT PAPER BIN RG5-4602-000CN INPUT PAPER SUPPORT RB2-4020-000CN LASER/SCANNER ASS'Y RG5-4570-000CN LEVER, POWER SWITCH RB2-3987-000CN...

  • Page 183

    Part name Part Number Table # Key # SCREW, M4X10 XB4-7401-007 CN 3 SCREW, M4X10 XB4-7401-007CN SCREW, M4X12 XB4-7401-209 SCREW, M4X8 XA9-0605-000CN SCREW, M4X8 XA9-0605-000CN SCREW, M4X8 XB4-7400-805 SCREW, TP, M3X6 XA9-0267-000CN SCREW, W/WASHER, M3X6 XB2-7300-607CN SCREW,M4X12 XB4-7401-209 CN 3 SCREW,TAPPING,PAN HEAD,M4X10 XB4-7401-007CN SCREW,TAPPING,PAN HEAD,M4X10...

  • Page 184

    AC power distribution 42 accessories and consumables ordering 159 adjusting registration 138 assemblies fusing 49 high-voltage connector 145 assembly diagrams 156 bidirectional ECP interface 44 black dots on pages 124 dots on scanned images 129 pages 126 streaks on page 124 blank areas on page 126 bottom of page or graphic 127...

  • Page 185

    driver 53 circuitry high-voltage 43 power 42 Cleaning printer ??– 135 printer paper path 135 cleaning photosensitive drum process 47 toner cartridge connection points 144 components, internal illustrations 165, 169, 173, 175, 177 connection points for toner cartridge 144 conserving toner 45 consumables and accessories ordering 159 contact image sensor 53...

  • Page 186

    date/time toner cartridge expiration 121 DC power distribution 42 delivery roller motion 145 developing process 48 diagrams assembly 156 timing 56 distribution of power 42 document sensor (PS801) 52 documents fall out of feeder tray 134 door open sensor (SW101) 52 dots on pages 124 on scanned images 129...

  • Page 187

    description 40 loads 40 edge of paper, not printing to 122 electrophotographic process 140 engine control function 39 engine test 138 engine test switch (SW201) 52 Error messages printer light patterns 8, 23 ESD (electrostatic discharge) caution 59 mat 60 exit rollers 49 expiration date of toner cartridges 121 faded print 123...

  • Page 188

    fusing assembly 49 element 48 graphic, bottom cut off 127 half-self test 140 hardware common 161 high-voltage connector assembly 145 power distribution 43 power supply check 144 image fixing process 48 image formation function 39 system 47 troubleshooting 121 images lines on page 124 too light or dark 122 installing self-tapping screws 59...

  • Page 189

    Light patterns printer 8, 23 light-emitting diode (LED) array 53 lines on scanned images 124 memory DRAM (dynamic random-access memory) 44 RAM (random-access memory) 44 misaligned print 129 missing bottom of page or graphic 127 mode, draft 45 monitoring paper motion 41 motion control 41 motor description 41...

  • Page 190

    blank print 127 bottom cut off 127 completely black 126 crooked 132 curled or wrinkled 131 long stop feeding 131 multiple feeding 132, 133 skewed 129, 131 paper curl 145 feed problems 131 motion 49 not being picked up 145 not moving through path 145 not printing to edge 122 paper exit sensor (PS201) 49, 51, 52...

  • Page 191

    phototransistor array 53 pickup roller assembly motion 145 pickup/feed functions 39 plates kick 49, 145 pliers required for servicing 60 power AC distribution 42 DC distribution 42 high-voltage distribution 43 shutoff switch 41 supply check 144 system description 40, 42 primary charging 48 print misaligned 131...

  • Page 192

    block diagram 39 overview of processes 38 protection, overcurrent 42 RAM (random-access memory) 44 random-access memory (RAM) 44 recycling toner cartridges 35 registration checking and adjusting 138 rod lens array 53 rollers exit 49 feed assembly drive 49 motion 145 rotation, drum 141 scan process 140...

  • Page 193

    contact image 53 document 52 door open 52 location and function 52 paper exit 52 paper exit (PS201) 49, 51 paper out (PS202) 51, 52 paper registration (PS203) 49, 51, 52 toner cartridge 52 separating process 48 separation pads description 49 service and support ordering parts 157 Support Materials Europe (SME) 157...

  • Page 194

    description 49 summary of processes 38 support and service ordering parts 157 Support Materials Europe (SME) 157 switches engine test (SW201) 52 location and function 52 power shutoff 41 test engine switch (SW201) 52 page for engine 138 tests engine 138 half-self 140 text, scanned, unclear 129 timing diagram 56...

  • Page 195

    tools servicing 60 troubleshooting 145 transfer process 140 transfer roller motion 145 trays documents fall out 134 Troubleshooting printer light patterns 8, 23 troubleshooting drum rotation 141 image formation 121 paper feed problems 131 process malfunctions 140 tools 145 video controller 53 void areas on page 126 voltage distribution 42...

  • Page 196

    stripes on page 123 wrinkled pages 131 : 196...

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