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  • Page 2

    © Copyright Hewlett-Packard Company 1998 All Rights Reserved. Reproduction, adaptation, or translation without prior written permission is prohibited, except as allowed under the copyright laws. Publication number C4224-90962 First edition, October 1998 Trademark Credits Adobe and PostScript are trademarks of Adobe Systems Incorporated which may be registered in certain jurisdictions.

  • Page 3

    Conventions This manual uses the following conventions: The names of major printer parts and assemblies are Capitalized. Color is used to emphasize items which are important to the material under discussion. Bold is used for emphasis, particularly in situations where italic type would be confusing. Italic type is used to indicate related documents or emphasis.

  • Page 4: Printer Specifications, 2 Product Operation, 3 Functional Overview, Removal And Replacement, 6 Parts And Diagrams

    Chapter Descriptions 1 Printer Specifications Contains printer features and product overview, printer specifications, and required safety and compliance statements. 2 Product Operation Contains descriptions of the Control Panel, printer key functionality, scanner Control Panel, paper handling, toner cartridge, and warranty statement. 3 Functional Overview Contains details about basic functions, printer functions, Engine Control Unit (ECU) and power system, formatter system, image formation system, printer paper feed system,...

  • Page 5: Table Of Contents

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

  • Page 6: Table Of Contents

    4 Removal and Replacement Removal and replacement strategy ........62 Required tools.

  • Page 7: Table Of Contents

    5 Troubleshooting/Maintenance Basic troubleshooting ..........120 Fatal errors/accessory errors .

  • Page 8

    Printer Specifications Chapter contents Printer description..........10 Hardware description .

  • Page 9: Printer Description

    Printer description The HP LaserJet 1100 Printer 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 10: Hardware Description

    The output tray holds up to 100 sheets. The HP LaserJet 1100 Printer 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 4 MB of ROM, 2 MB of RAM, and a 32-bit MCF5202 chip.

  • Page 11: Firmware Description, Specifications

    • Memory Enhancement technology (MEt) with Hardware Compression/Decompression The HP LaserJet 1100 Printer firmware also has REt and EconoMode functionality. Scan capability for the scanner attachment includes 300 dpi and 256 levels of gray (8 bpp). 12 Chapter Printer Specifications...

  • Page 12: Specifications

    Humidity: 10% to 90% (no condensation) Acoustics Noise level During printing: • 6.1 Bels sound power level (per ISO 9296) (HP LaserJet 1100 Printer tested at 8 ppm) • Sound pressure level (bystander position): 47 dB • Sound pressure level (operator position): 55 dB •...

  • Page 13

    Table 1-1. Printer specifications (continued) 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 • Width: 367 mm (14.5 inches) •...

  • Page 14

    Table 1-1. Printer specifications (continued) 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 51 x 89 mm (2 x 3.5 inches) Maximum Paper 216 x 762 mm (8.5 x 30 inches) Size...

  • Page 15: 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 16: 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 17

    Since 1990, the HP LaserJet Toner Cartridge Recycling Program has collected more than 12 million used HP 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 18: 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 19: Additional Product Stewardship, Environmental Conformity

    The hardware maintenance warranty covers a three-year period from date of the HP product purchase. The customer must purchase HP SupportPack within 90 days of the HP product purchase. Information on HP SupportPack is available in a fax format by calling HP FIRST (Fax Information Retrieval Service Technology).

  • Page 20: 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 Printer 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...

  • Page 21: 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”...

  • Page 22: 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 Regulatory statements 23 C4224-90962...

  • Page 23: Laser Statement For Finland

    Laser statement for Finland LASERTURVALLISUUS LUOKAN 1 LASERLAITE KLASS 1 LASER APPARAT HP LaserJet 1100 Printer -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 24: Hp Laserjet 1100 Printer Control Panel, Printer Key Functionality, Scanner Control Panel, Printer Paper Handling

    Chapter contents HP LaserJet 1100 Printer control panel ....... 26 Printer key functionality.

  • Page 25: Hp Laserjet 1100 Printer Control Panel

    LEDs and scan keys have no effect on printer functionality. Go key The HP LaserJet 1100 Printer Control Panel’s single Go key will be the only means the user has of interacting with the printer, except through software. Therefore, the Go key must perform all actions the user needs.

  • Page 26

    The printer is in an error state. The Toner Cartridge is correctly installed in the printer. There are no paper jams. Paper out Load paper into the printer. The printer is out of paper. HP LaserJet 1100 Printer control panel 27 C4224-90962...

  • Page 27

    The printer ran out of memory in printer. the middle of a print job. See “Memory (DIMMs)” in the HP LaserJet 1100 Printer User Guide to add memory. Press and release the Go key to print. Reset/Printer initialization No action is necessary. However, you can...

  • Page 28: 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 29: Normal Printer Operation

    while data is in the printer, a form feed pending will occur. Once the data the printer has received is completely formatted and no more data is in the I/O, the partial page will be ejected due to the form feed pending. Normal printer operation When power is supplied to the printer, all LEDs go on and then off.

  • Page 30: Scanner Control Panel, Quick Copy

    Scanner control panel Figure 2-2 Scanner control panel 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 computer that opens the appropriate software application to start the scan or starts a scan depending on how the computer software is configured.

  • Page 31

    Table 2-3. Scanner key functionality based on printer status Scan and copy Scan key key pressed Copy key Scanner mode press together press Printer reset Power on / No action No action No action No action Initialization Sleep mode Starts scan No action Starts copy if paper Resets the printer...

  • Page 32

    Table 2-3. Scanner key functionality based on printer status (continued) Scan and copy Scan key key pressed Copy key Scanner mode press together press Printer reset Printer Paper Jam Starts scan if scan No action Starts scanning Resets the printer manager can get copy, but will wait the required...

  • Page 33

    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 computer software. A scan can be initiated two ways: from the computer or from the scanner Control Panel. When the scan key is pressed on the scanner, it sends a signal to the computer to let it know the firmware is ready to scan.

  • Page 34: Printer Paper Handling, Manual Feed

    Paper Input Bin and press the Go key. If the HP LaserJet 1100 Printer 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 35: 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 HP LaserJet 1100 Printer 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 36

    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. There is an unchangeable default, but the scan width can be adjusted by the job. The scan length is determined by the media.

  • Page 37: Toner Cartridge Information, Refilled Toner Cartridges, Recycling Toner Cartridges

    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 38: Basic Functions, Printer Functions, Engine Control Unit (ecu)/power System

    Functional Overview Chapter contents Basic functions ..........42 Printer functions .

  • Page 39: Basic Functions

    Basic functions This chapter presents a functional overview of the HP LaserJet 1100 Printer’s processes. The following systems are discussed: • engine controller unit (ECU) system/power system • formatter system • image formation system • paper feed system (printer) and document feed system (optional document scanner) •...

  • Page 40: 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 41

    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 42: 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. Paper motion monitoring and control The ECU controls paper motion by continuously monitoring the various paper sensors and coordinating the timing with the other print processes.

  • Page 43: 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 44

    This circuit also controls the image density by changing the primary AC voltage and the developing AC bias according to the print density setting. High voltage is disabled when the printer door is open. Figure 3-4 High-voltage power supply circuit Engine Control Unit (ECU)/power system 47 C4224-90962...

  • Page 45: Formatter System, Control Panel

    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 46: Draft Mode, Memory Enhancement Technology (met), Enhanced I/o, Page Protect

    Draft mode Depending on which printer driver is used, selecting “draft” or EconoMode from the printer driver allows the HP LaserJet 1100 Printer 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 47: 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 bidirectional Parallel connection.

  • Page 48: 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 3-5 Image formation block diagram Toner cartridge...

  • Page 49

    Step 2 Conditioning stage. This process consists of applying a uniform negative charge to the surface of the drum with the primary charging roller located in the Toner 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.

  • Page 50: 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 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 Printer. 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. Table 3-2. 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) the photosensitive drum and the top of the paper.

  • Page 53: Document Scanner System (optional), 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 3-7 Simplified scanner document path Input path Document pickup roller Document sensor Contact image sensor (CIS) CIS roller Output path Document scanner system (optional) 57 C4224-90962...

  • 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. The following events take place during normal printer operation: Period Purpose...

  • Page 56

    Figure 3-8 General timing diagram Basic sequence of operation (formatter to printer) 59 C4224-90962...

  • Page 57: Removal And Replacement Strategy, Required Tools, External Assemblies And Covers, Paper Guides Removal

    Removal and Replacement Chapter contents Removal and replacement strategy ........62 Required tools.

  • Page 58: Removal And Replacement Strategy

    Never operate or service the HP LaserJet 1100 Printer 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 Printer can be sharp. Use caution when working on the HP LaserJet 1100 Printer.

  • Page 59: Required Tools

    Small flat-blade screwdriver • Needle nose pliers • ESD mat • Pod removal tool (optional, part number BZ99-R72-8010-4) CAUTION: A Posidrive screwdriver will damage screw heads on the HP LaserJet 1100 Printer. Use Phillips screwdriver only. Required tools 63 C4224-90962...

  • Page 60: External Assemblies And Covers, Paper Guides Removal

    External assemblies and covers Paper guides removal Figure 4-1 Removing the paper guides Remove the clear plastic paper guides from the paper output trays and the scanner. Removal and Replacement C4224-90962...

  • Page 61: 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 62: 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 C4224-90962...

  • Page 63: 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. External assemblies and covers 67 C4224-90962...

  • Page 64

    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 65

    Contact image sensor removal (continued) Figure 4-6 Disconnecting the CIS wire connector Gently pull the connector from the slot in the metal casing. External assemblies and covers 69 C4224-90962...

  • Page 66: 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 67

    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-blade screwdriver, press down on the plastic connecting snaps underneath the end of the stabilizer bar (callout 1).

  • Page 68

    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 C4224-90962...

  • Page 69

    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-blade screwdriver. Lift the paper deflector, pivoting on the right side. External assemblies and covers 73 C4224-90962...

  • Page 70

    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 C4224-90962...

  • Page 71

    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. External assemblies and covers 75 C4224-90962...

  • Page 72: 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; the end of the tool marked “R”...

  • Page 73: Back Cover Removal

    Back cover removal Figure 4-14Removing the screws on the back cover Prior to this step: Remove the 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.

  • Page 74

    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 C4224-90962...

  • Page 75: Internal Paper Guide Removal

    Internal paper guide removal Figure 4-16Removing the paper guide Prior to this step: Remove the memory card (if applicable), pods, and 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).

  • Page 76: Front Cover Removal

    Front cover removal Figure 4-17Removing the front cover (continued on next page) Prior to this step: Remove the 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 77

    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 78: Stabilizer Bars Removal

    Stabilizer bars removal 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 C4224-90962...

  • Page 79: Printer Laser/scanner Cover Removal

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

  • Page 80: Internal Assemblies, Scanner Assembly Removal

    Internal assemblies Scanner assembly removal Figure 4-21Disconnecting the scanner assembly cables Prior to this step: Remove the 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 the cable from the routing.

  • Page 81: 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-blade screwdriver, release the plastic snap on the right end of the output roller. Internal assemblies 85 C4224-90962...

  • Page 82

    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 C4224-90962...

  • Page 83: Delivery Assembly Removal

    Delivery assembly removal Figure 4-24Removing the torsion screws on the delivery assembly Prior to this step: Remove the 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. Internal assemblies 87 C4224-90962...

  • Page 84

    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 C4224-90962...

  • Page 85: 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 86: Fusing Element Removal

    Fusing element removal Figure 4-27Metal Clips Holding Fusing Element Prior to this step: Remove the 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 87

    Fusing element removal 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. Slide the front of the metal clip underneath the threaded tab on the printer chassis so that the two holes line up.

  • Page 88

    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 C4224-90962...

  • Page 89

    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-blade screwdriver. Unwind the cable from the cable guides along the side of the printer.

  • Page 90

    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 C4224-90962...

  • Page 91: Gear Train Motor And Solenoid Removal, Solenoid Removal

    Gear train motor and solenoid removal Figure 4-32Removing the motor cable connection to the gear train cover Prior to this step: Remove the 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 92

    Gear train motor and solenoid removal (continued) Figure 4-33Removing the gear train cover Remove the four screws securing the metal plate over the Gear Train, and very gently release it. Removal and Replacement C4224-90962...

  • Page 93

    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 94: Solenoid Removal

    Solenoid removal Figure 4-35Removing the solenoid 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 C4224-90962...

  • Page 95: 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.

  • Page 96

    Pressure roller removal (continued) 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 97: 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. A grounding spring is attached to the bottom of the left end of the Transfer Roller. This spring NOTE: may come loose during assembly or removal.

  • Page 98: 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 C4224-90962...

  • Page 99: Paper Pick-up Assembly Removal

    Paper pick-up assembly removal Figure 4-39Accessing the paper pick-up assembly area Prior to this step: Remove the memory card (if applicable), scanner, pods, front door, front cover, back cover, paper guide, top cover; and disconnect the laser/scanner. Remove the screw attached to a bracket at the right end of the cover plate (callout 1). Remove the two top screws attached to the right and left of the plate (callouts 2 and 3).

  • Page 100

    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. Pay close attention to how the Assembly is aligned before removing it (see Reassembly Note on this page).

  • Page 101: Kick Plate Removal

    Kick plate removal Figure 4-41Removing the kick plate Prior to this step: Remove the memory card (if applicable), scanner, pods, front door, front cover, back cover, paper guide, top cover; and disconnect the 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 102: Separation Pad Removal

    Separation pad removal Figure 4-42Removing the snap holding the separation pad Prior to this step: Remove the memory card (if applicable), scanner, pods, front door, front cover, back cover, paper guide, top cover, kick plate; and disconnect the laser/scanner. Remove the plastic snap on the opposite side of the printer from the Kick Plate. Removal and Replacement C4224-90962...

  • Page 103

    Separation pad removal (continued) Figure 4-43Removing the separation pad Slide the Separation Pad out through the brackets securing it. Internal assemblies 107 C4224-90962...

  • Page 104: 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 C4224-90962...

  • Page 105

    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 106: Document Scanner Cable Removal

    Document scanner cable removal Figure 4-46Removing the ECU pan cable cover Prior to this step: Remove the 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 107

    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 108: Hinge Mechanism Removal

    Hinge mechanism removal Figure 4-48Removing the hinge mechanism Slide the hinge mechanism and attached cables out of the chassis. Removal and Replacement C4224-90962...

  • Page 109: Ecu Pan Removal

    ECU pan removal Figure 4-49Removing the ECU pan Prior to this step: Remove the scanner, pods, doors, back cover, front cover, formatter; and disconnect the ECU cable. NOTE: If the 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.

  • Page 110

    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.

  • Page 111: Paper Feed Assembly Removal

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

  • Page 112

    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 C4224-90962...

  • Page 113

    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. Bottom assemblies 117 C4224-90962...

  • Page 114: Basic Troubleshooting, Fatal Errors/accessory Errors, Image Formation Troubleshooting

    Troubleshooting/ Maintenance Chapter contents Basic troubleshooting ..........120 Fatal errors/accessory errors .

  • Page 115: Basic Troubleshooting

    Basic troubleshooting Table 5-1. 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).

  • Page 116

    Table 5-1. Basic troubleshooting 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 Self test does not print.

  • Page 117

    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 118

    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 119

    Table 5-2. Service and error messages Light status Description Recommended action Incompatible DIMM Error Remove DIMM and power cycle. If error persists, replace (Accessory Error). formatter. Document Scan Engine 1. Unplug the printer, remove and reattach the laser scanner, Error. and then replug the printer.

  • Page 120: 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 121: Solving Image Quality Problems, Solving Paper Feed Problems

    Parts of the page The HP LaserJet 1100 Printer cannot print To get the image to fit into this printable to the edge of the paper. The HP LaserJet area, slightly reduce the size of the image. around the 1100 Printer has minimum margins on edges aren’t...

  • Page 122: Cleaning Procedures

    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 Printer is Follow the steps in “Basic troubleshooting” vertical white damaged. to isolate the problem.

  • Page 123

    Table 5-3. Solving image quality problems Problem Cause Solution Vertically- The HP LaserJet 1100 Printer needs to be See “Cleaning procedures” in this chapter. cleaned. aligned black streaks or smears appear The toner cartridge is damaged. Replace the toner cartridge if...

  • Page 124

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

  • Page 125

    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 126

    Adjust occasionally. the margins accordingly. Your HP LaserJet 1100 Printer is feeding Remove the paper from the paper input two or more sheets of paper at a time bin and align the edges of the paper.

  • Page 127

    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 128

    Table 5-3. Solving image quality problems Problem Cause Solution Scanned text is The contrast, resolution, or brightness Adjust the resolution, contrast and/or needs to be adjusted before scanning. brightness setting(s) from the tool box on not clear. the Document Assistant. The original is on colored paper.

  • Page 129: 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 Printer . Table 5-4. Solving paper feed problems 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 130

    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 131

    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 132: Cleaning The Toner Cartridge Area, Cleaning The Printer Paper Path, Cleaning The Pickup Roller

    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 133: 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 134

    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 135: 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 Printer under the memory door. New picture here: now behind memory door on back of printer...

  • Page 136: Self Test

    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 137: Half-self Test Functional Check, Drum Rotation Functional Check

    If the memory is too low, a reduced Self Test Page is printed which contains only the printer configurations and a message “Reduced Self Test Printed - Memory Too Low.” In a low- memory condition the font printout attempts to print all downloaded permanent fonts, but if the memory is too low a message “Font Test Aborted”...

  • Page 138: 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 Printer 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...

  • Page 139

    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 NOTE: Normal resistance is 30 ohms +/- 10 ohms.

  • Page 140

    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. Functional checks 145 C4224-90962...

  • Page 141: 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). If they are dirty or corroded, clean the connections, or, if they are damaged, replace the toner cartridge.

  • Page 142: 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 143: To Override Sw301

    To override SW301 Figure 5-7 Overriding SW301 Remove the printer covers Install the toner cartridge. 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 144: 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.

  • Page 145

    "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 commands from...

  • Page 146: Troubleshooting Tools, Printer Paper Path

    Troubleshooting tools Printer paper path Figure 5-9 Paper path and components Troubleshooting/Maintenance C4224-90962...

  • Page 147: Document Paper Path

    Document paper path Figure 5-10 Document path and components Troubleshooting tools 153 C4224-90962...

  • Page 148: 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) Figure 5-11Repetitive image defect ruler...

  • Page 149: Main Wiring

    Main wiring II. GENERAL CIRCUIT DIAGRAM ONER FU701 CAR TRIDGE J702F J702M H701 CONNECT FIXING FILM UNIT J102F J102M J703M SW101(200V only) Film J703F INL101 J206M J206F J009M J009F FSRTH J304 J302 J301 J303 J008F J008M J209M +24V TONERS J305 PRESSURE ROLLER ENGINE CONTROLLER PCB J210M...

  • Page 150: How To Use The Parts Lists And Diagrams, Parts And Supplies, Ordering Information

    Parts and diagrams Chapter contents How to use the parts lists and diagrams ......158 Parts and supplies .

  • Page 151: 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 152: Parts And Supplies, Ordering Parts, Ordering Information

    Wolf-Hirth Strasse 33 D-7030 Boblingen, Germany (49 7031) 14-2253 You can also contact Hewlett-Packard at (916) 783-0804 to find out part numbers for the HP LaserJet 3100 product. Contact a local HP Parts Coordinator for other local phone numbers. Ordering Information You can increase the capabilities of the printer with optional accessories and supplies.

  • Page 153: Consumables And Accessories

    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. EST. LIFE...

  • Page 154: Ordering Consumables

    • 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. Consumables and accessories 161...

  • Page 155: Common Hardware

    Common hardware Table 6-1. Common fasteners Example Description Screw, machine, truss head Screw, star Screw, self-tapping Screw, hex-head Screw, hex-head, star Parts and diagrams C4224-90962...

  • Page 156: External Covers And Panels

    External covers and panels Figure 6-1 External covers, panels, etc. Table 6-2. External covers, panels, ets. 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...

  • Page 157: Document Scanner Parts

    Document scanner parts Figure 6-2 Document Scanner Table 6-3. Document Scanner KEY # PART # DESCRIPTION R37-5000-000CN SCANNER ASS’Y RG5-4561-000CN CONTACT IMAGE SENSOR Parts and diagrams C4224-90962...

  • Page 158: Internal Components

    Internal components Figure 6-3 Internal components, 1 of 4 Table 6-4. 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...

  • Page 159

    Figure 6-4 Internal components, 2 of 4 Parts and diagrams C4224-90962...

  • Page 160

    Table 6-5. Internal components, 2 of 4 KEY # PART # 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 GEAR ASS'Y...

  • Page 161

    Figure 6-5 Internal components, 3 of 4 Parts and diagrams C4224-90962...

  • Page 162

    Table 6-6. 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 163

    Figure 6-6 Internal components, 4 of 4 Parts and diagrams C4224-90962...

  • Page 164

    Table 6-7. 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 RY7-5060-000CN DEVELOPER FASTENER KIT RF5-2823-000CN ROLLER, PRESSURE RH7-5227-000CN...

  • Page 165: Feeder Assembly

    Feeder assembly Figure 6-7 Feeder assembly Parts and diagrams C4224-90962...

  • Page 166

    Table 6-8. Feeder assembly KEY # PART # DESCRIPTION RB2-3912-000CN FEED ROLLER RG5-4581-000CN FEEDER ASS'Y Feeder assembly 173 C4224-90962...

  • Page 167: Engine Controller Assembly

    Engine controller assembly Figure 6-8 Engine controller assembly Parts and diagrams C4224-90962...

  • Page 168

    Table 6-9. Engine controller assembly KEY # PART # 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 169: Formatter Pan

    Formatter pan Figure 6-9 Formatter pan Table 6-10. Formatter pan KEY # PART # Q'TY DESCRIPTION RB2-3992-000CN FORMATTER PLATE C4146-60001 FORMATTER 0515-2672 FORMATTER SCREWS Parts and diagrams C4224-90962...

  • Page 170: Parts List Sorted By Part Number

    Parts list sorted by part number Table 6-11. Parts list sorted by part number Part Number Part Name Table # Key # 0515-2672 FORMATTER SCREWS C4146-60001 FORMATTER CK-8006 PRESSURE ROLLER GREASE R37-5000-000CN SCANNER ASSÆY RB1-7303-000CN 3 SPACER, PCB RB2-3940-000CN 1 SPRING, COMPRESSION RB2-3957-000CN 1 BUSHING, RIGHT...

  • Page 171

    Table 6-11. Parts list sorted by part number Part Number Part Name Table # Key # 0515-2672 FORMATTER SCREWS RB2-3931-000CN 2 ROLLER RB2-4001-000CN 1 MOUNT, DISPLAY PCB RB2-3932-000CN 1 PLATE, SCANNER RB2-4034-000CN 1 MOUNT, ARM RB2-4021-000CN 1 OUTPUT/SCANNER PAPER SUPPORT RF5-2819-000CN 1 GUIDE, CARTRIDGE, RIGHT RF5-2832-000CN 1...

  • Page 172

    Table 6-11. Parts list sorted by part number Part Number Part Name Table # Key # 0515-2672 FORMATTER SCREWS RS5-2502-000CN 1 SPRING, COMPRESSION RS6-2122-000CN 1 SPRING, COMPRESSION RY7-5051-000CN 1 CLUTCH KIT RY7-5049-000CN 1 GEAR KIT RY7-5060-000CN 1 DEVELOPER FASTENER KIT RY7-5050-000CN 1 SUBPAD KIT RZ4-0690-000CN 2...

  • Page 173: Parts List Sorted By Part Name

    Parts list sorted by part name Table 6-12. Parts list sorted by part name Part Name Qty Part # Table # Key # ARM HOLDER ASS'Y RIGHT RG5-4588-000CN ARM HOLDER ASS'Y LEFT RG5-4587-000CN ARM, PAD RF5-2832-000CN BUSHING, LEFT RB2-3956-000CN BUSHING, RIGHT RB2-3939-000CN BUSHING, RIGHT RB2-3957-000CN...

  • Page 174

    Table 6-12. Parts list sorted by part name GUIDE, FIXING RB2-3958-000CN GUIDE, ARM, RIGHT RB2-3942-000CN GUIDE, CARTRIDGE, LEFT RF5-2818-000CN GUIDE, CARTRIDGE, RIGHT RF5-2819-000CN HOLDER, PAD RB2-3947-000CN HOLDER, FLAT CABLE RB2-4017-000CN HOLDER, POWER SWITCH LEVER RB2-3986-000CN INPUT PAPER SUPPORT RB2-4020-000CN INPUT PAPER BIN RG5-4602-000CN LASER/SCANNER ASS'Y RG5-4570-000CN...

  • Page 175

    Table 6-12. Parts list sorted by part name SCREW, TAPPING, PAN HEAD, M4X10 XB4-7401-007CN SCREW, M3X8 XB6-7300-807 CN SCREW, M4X8 XA9-0605-000CN SCREW, TAPPING, PAN HEAD, M4X10 XB4-7401-007CN SCREW, M4X10 XB4-7401-007 CN SCREW, M3X6 XB2-7300-607 CN SCREW, M3X6 XB6-7300-609CN SCREW, W/WASHER, M3X6 XB2-7300-607CN SENSOR CABLE (J211, J003, J004) RG5-4617-000CN...

  • Page 176

    List of Figures Control panel ........11 Printer light patterns .

  • Page 177

    Removing the kick plate ....... 105 Removing the snap holding the separation pad ... . . 106 Removing the separation pad .

  • Page 178: Specifications

    List of Tables Printer specifications ........13 Control panel light messages ......27 Printer key functionality .

  • Page 179

    Index AC power distribution 46 accessories and consumables ordering 161 adjusting registration 140 assemblies fusing 53 high-voltage connector 147 assembly diagrams 158 bidirectional ECP interface 48 black dots on pages 127 dots on scanned images 132 pages 130 streaks on page 128 blank areas on page 130 bottom of page or graphic 131...

  • Page 180

    high-voltage power supply 146 circuit driver 56 circuitry high-voltage 47 power 46 cleaning photosensitive drum process 51 printer 137 printer paper path 137 toner cartridge connection points 146 components, internal illustrations 165, 168, 172, 174, 176 connection points for toner cartridge 146 conserving toner 49 consumables and accessories ordering 161...

  • Page 181

    toner cartridge expiration 125 DC power distribution 46 delivery roller motion 147 developing process 52 diagrams assembly 158 timing 59 distribution of power 46 document sensor (PS801) 55 documents fall out of feeder tray 136 door open sensor (SW101) 55 dots on pages 127 on scanned images 132...

  • Page 182

    electrophotographic process 142 engine control function 43 engine test 140 engine test switch (SW201) 55 error messages printer light patterns 11, 26 ESD (electrostatic discharge) caution 62 mat 63 exit rollers 53 expiration date of toner cartridges 125 faded print 127 fasteners, common 162 faxes light or dark 126...

  • Page 183

    half-self test 142 hardware common 162 high-voltage connector assembly 147 power distribution 46 power supply check 146 image fixing process 52 image formation function 43 system 51 troubleshooting 125 images lines on page 128 too light or dark 126 installing self-tapping screws 62 kick plate motion 53, 147 LED (light-emitting diode) array 56...

  • Page 184

    memory DRAM (dynamic random-access memory) 48 RAM (random-access memory) 48 misaligned print 132 missing bottom of page or graphic 131 mode, draft 49 monitoring paper motion 45 motion control 45 motor description 45 rotation 147 multiple pages feeding 135, 136 optical system 56 ordering accessories and consumables 161...

  • Page 185

    skewed 132, 134 paper curl 147 feed problems 134 motion 53 not being picked up 147 not moving through path 147 not printing to edge 126 paper exit sensor (PS201) 53, 54, 55 paper jams 135, 136 paper motion control 45 paper out sensor (PS202) 54, 55 paper path check 147...

  • Page 186

    AC distribution 46 DC distribution 46 high-voltage distribution 46 shutoff switch 45 supply check 146 system description 44, 46 primary charging 52 print misaligned 134 skewed 134 print engine control system 45 printer functions 43 isolating problems 140 laser/scanner functions 43 light patterns 11, 26 specifications 13–...

  • Page 187

    exit 53 feed assembly drive 53 motion 147 rotation, drum 143 scan process 142 scanned images lines on page 128 too light or dark 126 scanned text unclear 133 scanner path 56 system 56 scattered toner on page 130 screwdrivers required for servicing 63 screws common 162 installing 62...

  • Page 188

    service and support ordering parts 159 Support Materials Europe (SME) 159 Support Materials Organization (SMO) 159 shutoff switch 45 skewed pages 134 print 132 smears on page 128 smudges on page 127 solenoid 55 solenoid assembly 147 specifications printer 13– 14 stains on page 127 streaks on pages 128...

  • Page 189

    tests engine 140 half-self 142 text, scanned, unclear 133 timing diagram 59 toner draft mode for conserving 49 scattered on page 130 toner cartridge 38 recycling 38 refilled 38 toner cartridges checking 125 checking and cleaning connection points 146 description 51 expiration date 125 photosensitive drum 125 sensor 55...

  • Page 190

    tools 147 video controller 56 void areas on page 130 voltage distribution 46 high 46 over 46 power supply check 146 protection 46 warranty statement 39 weight toner cartridge when full and empty 125 white areas on page 130 stripes on page 127 wrinkled pages 134 C4224-90962...

  • Page 191

    Copyright© 1998 Hewlett-Packard Co. Printed in USA Manual Part No. C4224-90962 *C4224-90962* *C4224-90962* Printed on at least 50% Total Recycled Fiber with at least 10% Post-Consumer Paper C4224-90962...

This manual also for:

Laserjet 1100

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