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Cut Sheet Printers
Maintenance Manual
Models C30 and C30D
HP Part No. C4000-90006
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Notice Hewlett-Packard makes no warranty of any kind with regard to this material, including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose. Hewlett-Packard shall not be liable for errors contained herein or for incidental or consequential damages in connection with the furnishing, performance, or use of this material. Hewlett-Packard assumes no responsibility for the use or reliability of its software on equipment that is not furnished
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Warnings and Cautions A WARNING denotes a hazard. It calls attention to a procedure or practice, which, if not done correctly or adhered to, could result in personal injury. Do not proceed beyond a WARNING sign until the indicated conditions are fully understood and met. A CAUTION denotes a hazard. It calls attention to a procedure which, if done incorrectly or inattentively, could damage or destroy part or all of the product. Do not proceed beyond a CAUTION until the indicated conditions a
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Preface The C30/C30D Maintenance Manual contains all the information needed to maintain and service Hewlett Packard C30 and C30D printers. The C30 printer series are high-speed, non-impact printers utilizing electrophotographic imaging technology. The information in this maintenance manual is for authorized field representatives who are familiar with basic printer operations. It serves as a supplement to training classes and pro- vides a basis for discussion with regional field service engine
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Chapter 8, “Options” Provides information about the optional High Capacity Input and High Capacity Output bins. Chapter 9, “General Printer Maintenance” Reviews printer maintenance procedures to complete during service calls. Appendix A Lists the abbreviations and acronyms used in the manual. Index Provides a list of references to topics and part numbers mentioned in the Maintenance Manual Other Manuals The C-Series Illustrated Parts Catalog shows every FRU and CRU (customer-replaceable unit)
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-vi
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Contents Printer and Troubleshooting Overview Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 Theory of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3 Paper Path and Cycle Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5 Simplex Printing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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TAG 012: Upper Cassette Not Latched . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-18 TAG E12: Envelope Tray or Feeder Not Latched . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-21 TAG 013: Lower Cassette Not Latched . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-24 TAG 020: Paper Jam/Misfeed in Upper Cassette Area . . . . . . . . . . . . . . . . . . . . . . . .3-26 TAG 021: Paper Jam/Misfeed in /Lower Cassette Area. . . . . . . . . .
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TAG 804: Prints With Light Horizontal Bands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-162 TAG 805: Black Prints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-163 TAG 806: Prints with Dark Spots or Scratches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-166 TAG 807: Misregistered/Skewed Prints (Simplex) . . . . . . . . . . . . . . . . . . . . . . . . . . 3-168 TAG 808: Prints Overtoned/Dark Vertical Streaks . . .
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001 Operator Panel Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4 002 Upper Cassette Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-4 003 Lower Cassette Test. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5 005 Sensor Test Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6 006 Paper Transport Clut
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Connectors Inside the Back Cover (Continued) J/P18-62 . . . . . . . . . . . . . . . . . . . . . . 6-13 Connectors Inside the Back Cover (Continued) J/P 64-85. . . . . . . . . . . . . . . . . . . . . . 6-14 Connectors Inside the Back Cover (Continued) J/P 90-800. . . . . . . . . . . . . . . . . . . . . 6-15 Voltage Isolation Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-16 Ground System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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Counter Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-20 IGS Board Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-21 PCL Board Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-22 Printhead Assembly Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-23 Disk Drive Housing Removal. .
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Top Cover Interlock Switch Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-82 Erase Lamp Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-83 EP Cover Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-84 Main Motor Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-86 Main Gear Drive Removal . . . . . .
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Printer/Maintenance Record . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-4 Every-Call Cleaning Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-6 Remove Major Consumable Supplies. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-6 Inspect and Vacuum . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-6 Clean Internal Areas . .
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Chapter 1 Printer and Troubleshooting Overview Section 1 Troubleshooting Printer and Troubleshooting Overview 1-1
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Contents Printing and Troubleshooting Overview Theory of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3 Paper Path and Cycle Sequence. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-5 Simplex Printing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-5 Duplex Printing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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Theory of Operation The printer uses an electrophotographic imaging system based on LED array technology. Two key components of the printer are the image generation system (IGS) controller and the printer control logic (PCL) board. Image Generation System (IGS) controller: Each printer is equipped with an IGS con- troller, which provides the interface between the host computer, the PCL board, LED printhead, and the disk drives. The controller may be an EIGS or RIGS board. Printer Control Log
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6 Activating paper As the image is being developed, a sheet of paper is transported to the photoconductor belt. The PCL board controls this activity. A series of paper pick-up, feed, and timing rollers guide the paper so the developed image is properly registered with the leading edge of the sheet. 7 Transferring the image to the paper Next, the paper contacts the surface of the photoconductor belt. Above the paper and the belt is the transfer corona, which has a high positive charge, and at
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Paper Path and Cycle Sequence The IGS board signals the PCL board that a page of data is ready to be printed. When this happens the following sequence takes place. Simplex Printing 1 PCL software downloaded to the PCL board from the disk drive system turns on the main motor. 2 The PCL board engages the paper pick clutch which causes the roller to feed a sheet of paper. 3 The paper is passed to the feed roller where the PCL board has engaged the feed roller clutch. 4 The feed roller passes th
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2 The paper upon passing through the “B” roller comes in contact with the duplex sen- sor. (If the paper does not energize this sensor in a given amount of time, an error 060 will occur.) 3 The “C” roller bidirectional motor turns on and passes the paper into the turnaround tray. The paper sensor in the turnaround tray is activated and the paper is center regis- tered. (If the paper does not energize this sensor in a given amount of time after leav- ing the duplex sensor, an error 061 will occ
