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Tektronix 1235 manual

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Table of contents for the manual

  • Page 1

    Warning The following servicing instructions are for use by qualified service personnel only. To avoid personal injury, do not perform any servicing other than that contained in operating instructions unless you are qualified to do so. This printing: December 2000 071-0728-00 P HASE R® 1235 N E T WOR K C OL OR P R I NTER Service Quick Referenc e G[...]

  • Page 2

    Copyright © Xerox Corporation. Unpublished rights r eserved under the copyright laws of the United States. Contents of this publication may not be repr oduced in any form without permission of Xerox Corporation. Phaser ® , PhaserShare ® , ColorStix ® , the T ekColor ® icon, Made For Each Other ® , DocuPrint ® , W orkSet ® , Ethernet ® , th[...]

  • Page 3

    Users saf ety summary T erms in CAUTION Conditions that can r esult in damage to the product. manual: W ARNING Conditions that can r esult in personal injury or loss of life. P ower sour ce: For 1 10 V AC printers, Do not apply mor e than 140 volts RMS between the supply conductors or between either supply conductor and gr ound. Use only the speci?[...]

  • Page 4

    Symbols as marked on pr oduct: DANGER high voltage: Protective gr ound (earth) terminal: Use caution. Refer to the manual(s) for information: W ARNING: If the product loses the gr ound connection, usage of knobs and controls (and other conductive parts) can cause an electrical shock. Electrical product may be hazar dous if misused. Service safety s[...]

  • Page 5

    Service Guide v Contents General Information 1 The Phaser 1235 Color Printer 2 Printer RAM and printer capabilities 4 CRU life counter behavior 4 Print engine assemblies 5 The image processor board 11 The control panel 12 On Line LED 12 ! Fault 12 Rear panel 13 Accessing special operating modes 14 System controller board LEDs 14 Paper tray type sen[...]

  • Page 6

    vi Phaser 1235 Network Color Printer Jams 41 Wrong media 41 Paper jams at the paper tray 41 Manual bypass feeder feed jams 42 Paper jams at the registration rollers 42 Paper jams at the transfer belt 42 Fuser jams 43 Eject jams 43 Jams in the duplex unit 43 No drum imaging unit installed 44 Imaging drum unit up/down error 44 Fan error 44 Fuser unit[...]

  • Page 7

    Service Guide vii Service Tests and Adjustments 61 Diagnostics mode 61 Switch scan test 63 LED head test 68 Motor and clutch tests 69 Test printing 71 Consumable count initialization 73 Consumable counter display 75 Consumable continuation counter display 76 Adjusting color density and balance 77 Printing a Test Page 77 Interpreting the Color Balan[...]

  • Page 8

    viii Phaser 1235 Network Color Printer Left plate assembly 108 Electronic boards 109 System controller board 109 Print engine controller board 110 Toner sensor board 111 Entrance sensor board 113 High voltage power supply 114 Low voltage power supply 116 Control panel 117 Paper feed components 118 Tray 1 feed roller and nudger roller 118 Retard pad[...]

  • Page 9

    Service Guide ix Drive assembly components 151 Main motor assembly 151 Main feeder drive motor 153 Transfer belt motor assembly 154 Xerographic components 156 Shutter plate 156 Color registration sensor assembly 157 Color registration solenoid 158 LED assembly 159 Drum contact assembly 160 Toner sensor actuators 161 Duplex unit 163 Optional paper f[...]

  • Page 10

    x Phaser 1235 Network Color Printer Figures The Phaser 1235 Color Printer with lower tray feeders 1 Print engine circuit boards 5 Print engine circuit boards (cont’d) 6 Print engine sensor and switch locations 7 Print engine sensor and switch locations (cont’d) 8 Print engine motors, clutches and solenoids 9 Optional feeder motor and clutch 10 [...]

  • Page 11

    Service Guide xi Removing the entrance sensor board 113 Removing the high voltage power supply 115 Removing the low voltage power supply 116 Removing the control panel 117 Removing the feed roller and nudger roller 118 Removing the retard pad 119 Removing the paper size sensing board 121 Removing the paper size sensing actuator 122 Removing the mai[...]

  • Page 12

    xii Phaser 1235 Network Color Printer Removing the feeder control board cover 167 Removing the optional feeder inner plate 168 Removing the feeder control board cover 169 Removing the feeder clutch 170 Removing the feeder control board cover 171 Removing the feeder motor 172 Removing the feeder control board cover 173 Removing the feeder control bo[...]

  • Page 13

    Service Guide xiii Tables Entering special operating modes 14 Paper size detection 15 Physical dimensions 16 Printer clearances 16 Functional specifications 17 Electrical specifications 18 Environmental specifications 18 Printer fault messages 21 POWER Connector pinout 35 Motor and fuser roller resistances 38 Engine maintenance mode menu 62 Switch [...]