Xerox DC12 Technical Information from Service Manual
Contents
1. DADF Document Transport Belt ee Motor Reverse 005 075 DADF Registration Gate Solenoid 005 081 DADF Exit Motor 005 084 DADF LED 006 002 Exposure Lamp 006 005 Exposure Cooling Fan low speed 006 006 Exposure Scan Motor scan forward 006 013 Exposure Cooling Fan high speed 007 078 High Capacity Feeder HCF Feed Clutch 007 079 HCF Elevator Motor 007 080 HCF Feed Motor 008 006 Tray 1 Nudger Roll Solenoid 008 007 Tray 1 Feed Motor reverse 008 008 Tray 1 Feed Motor forward 008 009 Tray 1 Takeaway Feed Clutch 008 011 Tray 2 Nudger Roll Solenoid 008 012 Tray 2 Feed Motor reverse 008 013 Tray 2 Feed Motor forward 008 014 Tray 2 Takeaway Feed Clutch 008 016 Tray 3 Nudger Roller Solenoid 008 017 Tray 3 Feed Motor reverse 008 018 Tray 3 Feed Motor forward 008 019 Tray 3 Takeaway Feed Clutch 008 021 Tray 4 Nudger Roller Solenoid 008 022 Tray 4 Feed Motor reverse 008 023 Tray 4 Feed Motor forward 008 024 Tray 4 Takeaway Feed Clutch 008 025 Takeaway Motor 008 030 Tray 5 Nudger Roll Solenoid 008 037 Tray 5 Feed Clutch 008 040 Tray 5 Lift Motor 008 043 Main Motor 2 008 054 Registration Motor 009 011 Cartridge Motor Black 009 012 Cartridge Motor Yellow 009 013 Cartridge Motor Magenta 009 014 Cartridge Motor Cyan 009 018 Rotary2. developed onto the Drum from the IBT belt to finally be transferred onto the Paper With all the layering it is understandable how crucial a roll the fuser plays in this system It must have the right temperature lubrication and pressure to do its job The Fuser is different from many of the black and white copiers printers which I know in that it has three Fuser Rollers the Heat Roll the Pressure Roll and the External Roll It has heater lamps in all three of these rollers as well as thermal fuses It also has thermistors for heat control and overheat on all 3 rollers for a grand total of 6 thermistors and 3 thermal fuses thermostats if you re keeping count There is a way to enter into the Diagnostic Mode from the Control Console or User Interface UI although access is somewhat limited Ideally you d be equipped with a PWS Portable Work Station which is a laptop computer loaded with software to interface with the machine From a PWS you d have a menu driven way of accessing the diagnostics From the Control Console you ll need to get a listing of the codes there s no approaching this one blind You ll also have to pay extremely close attention to make sure you enter the code you really intend to since the display will give you little to go on While there are plenty of regular maintenance work and mechanical repair work which any competent tech can handle it ll be important to recognize when you re in over your head b
3. how to access the Diagnostics available from the Control Console You re going to need a listing of some of the basic Memory Adjustment Codes This machine requires that you know the code you want to enter there s no friendly menus like some of the other Xerox machines we ve covered here in the past the 5340 style and the DC220 style for example are menu driven so you can find your way around intuitively not so for the DC12 Tl also have to get you an abbreviated list of the Component Control Codes for testing sensors motors etc I think that 1I do it for this month hopefully this little taste has piqued your interest without being too much of a tease See you next month There s a complete listing of past articles under contributing writers look for Britton the ENX website www ENXMAG com if you d like to read more about Xerox brand office equipment First published in ENX Magazine www enxmag com Author Britt Horvat of The Parts Drop Introducing The Xerox DC12 style machines Part 2 DIAGNOSTICS Docucolor 12 DC12 amp Docucolor 50 DC50 or DCCS50 Overview and Status Codes Last month found us wading into the rather deep pool of Status Codes for the Docucolor12 amp DCCS50 machines Just enough to wet your appetite This is the first series of machines which I ve dealt with which is a full color machine it s a good place to start as its an excellent piece of equipment well built just abou
4. start with the NVM Read Write Non Volatile Memory Adjustments Again you need to have the exact code you wish to enter don t guess at this or you can screw things up pretty easily Here s an abbreviated list NVM Code Description Default Range value 700 116 Lighter Darker Default 0 0 7 700 117 Hue Control Default 0 0 5 700 118 Chroma Control Default 0 0 5 700 119 Sharpness Default 0 0 5 710 004 Document Feeder Lead Edge Registration simplex 710 007 Document Feeder Lead Edge Registration duplex 715 023 Doc Feeder Side Registration offset 32 0 100 715 132 Scanner Lead Edge Registration correction 50 0 75 715 133 Scanner Lead to Trail Magnification correction 50 44 56 720 001 Side Edge Registration Adjustment A side 525 1 16383 720 002 Side Edge Registration Adjustment B side 525 1 16383 720 018 Lead Edge Erase top edge 96mm 0 255 720 019 Trail Edge Erase bottom edge 35 0 255 720 020 Side Edge Erase 70 0 255 760 004 Tray 1 Paper Size 5 5x11 0 3 Fuser Fan Failure Reset Cero 772 018 i to clear For Resetting 10 398 amp 10 399 Status Codes codes Read CRU Type Copy Cartridge type 774 056 48 Metered Version uses 13R557 48 49 Sold Version uses 13R558 777 051 Oil Pump On Time adjusts oil dispensing 3000 ms 40 10000 Web Status 0 Full 1 Near Empty 2 Empty 777 077 Used to Reset 10 422 Status Code
5. 301 Top Cover Interlock Switch High Open 006 212 Scan Registration Sensor High Light Blocked 007 100 High Capacity Feeder HCF Feed Sensor High Paper Detected 007 186 HCF Stack Height Sensor High Stack not Home 007 187 HCF Paper Size Sensor High 8 5x11 007 188 HCF Paper Empty Sensor High Paper Detected 007 189 HCF Tray Closed Interlock High Closed 007 308 HCF Docking Interlock Switch High Docked 008 104 1 Pre Feed Sensor High No Paper Sensed 008 105 1 Feed Out Sensor High No Paper Sensed 008 109 2 Pre Feed Sensor High No Paper Sensed 008 110 2 Feed Out Sensor High No Paper Sensed 008 114 3 Prefeed Sensor High No Paper Sensed 008 115 3 Feed Out Sensor High No Paper Sensed 008 119 4 Pre Feed Sensor High No Paper Sensed 008 120 4 Feed Out Sensor High No Paper Sensed 008 135 Tray 5 Feed Sensor High Paper Sensed 008 150 Takeaway Sensor High No Paper Sensed 008 153 Pre Registration Sensor High No Paper Sensed 008 155 Registration Sensor High No Paper Sensed 008 163 Behind Registration Jam Sensor High No Paper Sensed 008 305 Tray 5 Bypass Interlock Switch High Feeder Open 009 216 IBT Belt Cleaner Retract Home Postion Sensor High Home Detected 009 217 Oil Roll Retract Home Position Sensor High Light Blocked 009 220 Developer Rotary Home Position Sensor High Light Block
6. 42 Fuser Web Cartridge needs changing this code should reset automatically when a new Web Cartridge is installed 10 359 Open Heat Roll Control Thermistor the one closer to the middle of the roll 10 360 Open Heat Roll Overheat Thermistor 10 361 to 10 365 Heat Roll not hot enough 10 366 to 10 367 Heat Roll Over temperature 10 368 Open Press Roll Control Thermistor the one closer to the middle of the roll 10 369 Open Press Roll Overheat Thermistor 10 370 to 10 374 Press Roll not hot enough 10 375 to 10 376 Press Roll Over temperature 10 377 to 10 378 Open External thermistor failures 10 379 to 10 385 External Heat Roll not hot enough 10 386 to 10 387 External Heat Roll Over temperature Overheat codes must be reset from Diagnostics NVM adjustments by entering code 777 160 and changing the value to a 0 after repairs are complete To get to the NVM adjustments you ll need to turn on the power then while holding down the 0 button press Start The screen will prompt you for an Access Number use the keypad to enter 6789 11 xxx Codes are all Sorter related stuff 14 xxx Codes are ROS Raster Output Scanner or Laser Module failures 15 xxx Codes have to do Image Processing System IPS failures in the logic communications 16 xxx Codes generally point to network faults 21 504 Code indicates a problem with an Accessory device such as a Coin Kit Next month we ll cover
7. 5 198 Document sensed at Exit Sensor at power on or when the DADF Top Cover was closed 5 199 Document duplex sensor jam 5 301 DADF Top Cover is open 6 xxx Codes relate to the optics below are a few select ones 6 360 Carriage Position Failure 6 371 Exposure Lamp failure 6 389 Carriage overrun at scan end 6 390 Carriage overrun at home end 7 xxx Codes relate to the Paper Supply some of the simpler ones are below 7 281 Tray 1 Lift Motor failure 7 282 Tray 2 Lift Motor failure 7 283 Tray 3 Lift Motor failure 7 284 Tray 4 Lift Motor failure 7 286 287 Tray 5 Lift Motor problems 8 xxx Codes are Paper Feed and Registration problems 9 xxx Codes are all Xerographic problems such as toner problems developer problems Drum Cartridge problems ADC Auto Density Control problems too Some examples 9 271 Yellow Toner empty 9 272 Magenta Toner empty 9 273 Cyan Toner empty 9 274 Black Toner empty 9 311 Wrong Drum Cartridge 9 372 No Drum Cartridge sensed 9 374 No Waste Bottle sensed 9 376 Waste Bottle full 9 378 Drum Cartridge count expired 40K 10 xxx Codes are Fuser problems and Paper Exit problems 10 102 to 10 117 Fuser area paper jams 10 127 to 10 163 Duplex jams 10 300 Inverter Cover is open 10 341 Fuser Oil bottle is empty 30 40K expected yield if the oiler system including the metering blade donor roll etc are in good working order This code should reset automatically when a new Oil Bottle is installed 10 3
8. Lock Mechanism Latch 009 021 Developer Motor Clutch 009 025 IBT Roll Contact 009 026 IBT Roll Retract 009 031 Dispense Motor Black 009 032 Dispense Motor Yellow 009 033 Dispense Motor Magenta 009 034 Dispense Motor Cyan 009 040 ADC LED Auto Density Control 009 050 Erase Lamp 009 066 IBT Cleaner Contact 009 067 IBT Cleaner Retract 009 068 Pre Clean Corotron 009 085 Rotory Motor Fan 009 088 Blower 009 089 Copy Cartridge Fan 010 004 Fuser Fan low speed 010 005 Inverter Gate Solenoid Invert 010 006 Inverter Gate Solenoid Exit 010 018 Fuser Fan high speed 010 020 Inverter Motor forward upward 010 021 Inverter Motor reverse down 010 023 Pressure Roll Contact 010 024 Pressure Roll Retract 010 025 Inverter Roll Nip Solenoid 010 026 Inverter Roll Release Solenoid 010 027 External Heat Roll Contact 010 028 External Heat Roll Retract 010 029 External Heat Roll Lamp 010 030 Heat Roll Lamp 010 031 Pressure Roll Lamp 010 032 Web Motor 010 033 Oil Pump 010 040 Exit Motor 010 047 1 Belt Transfer Roll BTR 010 050 Duplex Out Motor 010 060 Fuser Intake Fan low speed 010 061 Fuser Intake Fan high speed There s a complete listing of past ENX articles under contributing writers scroll down till you see Britt s mug on the ENX website www ENXMAG com if you d like to read more That just abou
9. Originally published in ENX Magazine www enxmagazine com Introducing The Xerox DC12 style machines Docucolor 12 DC12 amp Document Centre Color System 50 DC50 or DCCS50 Overview and Status Codes Author Britt Horvat of The Parts Drop First published in ENX Magazine www enxmag com All accounts of the Xerox Docucolor 12 which I ve heard so far seem to consider this a superb piece of equipment It s a full color copier and printer capable of producing color prints and copies which are truly impressive There are quite a few of these machines out there we ll start with a quick overview and then plunge into the rather deep pool of Status Codes actually we ll just wade a little the complete listing would take up way too many pages The DC12 and the DCCS50 are covered together in one service manual so they are very closely related These machines are said to run well so long as regular maintenance is observed one of the most sensitive parts of the machine lies in the Fuser s Oil application system Problems in copy quality which may at first appear to be caused by other things can wind up being in the fuser oiler section Its important to understand the way the machine works a little bit there is an IBT belt which is a transfer belt this belt gets written on by laser and then developed by each of the colors individually it keeps going around till each color is overlayed to form the image then the image is
10. asically take on the problems which make sense to you and know when to run If you run into logic problems you ll need to get in an expert for sure let the customer know that you can repair some of the basic and more common problems which occur such as replacing fuser parts feed components etc but that you have limited access to information and in some cases they may need to find someone who is trained on the machine someone who owns a PWS would be best If you make friends with someone who knows these machines keep their number handy Like many of the more complex Xerox machines this one is a bit logic heavy so there are more codes than we ll actually list here but at least this will give you a good idea which way to look when you get a status code Below are the basic layout of the meanings behind the Status Codes STATUS CODES 1 300 Front Door Interlock is open 1 304 Left Cover Interlock is open 2 310 User Interface UI Panel failure 2 340 UI RAM failure 3 xxx Codes are all Communication and memory failures 4 001 Main Motor problem 4 002 Drum Motor problem 5 xxx Codes are all Document Feeder DADF problems below are a few you ll want to know 5 110 to 5 113 DADF Registration jams 5 115 to 5 116 DADF Exit jams 5 196 Document sensed at Document Sensor at power on or when the DADF Top Cover was closed 5 197 Document sensed at Registration Sensor at power on or when the DADF Top Cover was closed
11. ed 009 237 Developer Rotary Lock Mechanism Sensor High Latched 009 249 Waste Bottle Position Sensor High Set 009 250 Waste Bottle Full Sensor High Full 009 251 Trickle Bottle Sensor High Full 009 255 Low Toner Sensor Black High Toner Sensed 009 257 Low Toner Sensor Yellow High Toner Sensed 009 258 Low Toner Sensor Magenta High Toner Sensed 009 259 Low Toner Sensor Cyan High Toner Sensed 010 100 Fuser Entrance Sensor High No Paper Sensed 010 105 Fuser Exit Sensor High No Paper Sensed 010 110 Machine Exit Sensor High No Paper Sensed 010 115 Exit Path Sensor High Paper Sensed 010 125 Inverter Path Sensor High Paper Sensed 010 130 Duplex In Sensor High Paper Sensed 010 132 Duplex Path 1 Sensor High Paper Sensed 010 133 Duplex Out Sensor High Paper Sensed 010 220 Press Roll Retract Sensor High Retract position 010 221 External Heat Roll Retract Sensor High Retract position 010 222 Oil Sensor High Oil Empty Here s a list of some of the Output Component Codes you re likely to want to be able to run OUTPUT COMPONENT TEST CODES Output Description Code p 003 002 K1 Relay from AC Drive PWBA 004 007 Main Motor 004 009 Fuser Motor Drum Motor Photoreceptor and IBT eee Belt both come on 005 011 Doc Feeder DADF Set Gate Solenoid Open 005 012 DADEF Set Gate Solenoid Close 005 040 DADF Feed Motor 005 055 DADF Document Transport Belt Motor Forward
12. if web cartridge fails to reset it automatically Fuser Failure Status O No Problems 1 Heat Roll Lamp Failed 2 Heat Roll Safety failure 777 160 3 Press Roll Lamp failed 4 Press Roll Safety failure 5 External 0 Roll Lamp failed 6 Ext Roll Safety failure Used to Reset the following Fuser Fault Codes 10 366 10 367 10 375 10 376 10 386 10 387 You ll notice that several of the NVM codes above allow you to reset the machine when certain otherwise unclearable Fault Codes occur In each case you d want to reset the value to 0 to make the Fault Code go away Next you ll want to be equipped with a list of the more commonly needed Component Control Codes similar to the NVM codes you need to know the exact code you want to run Again you ll need to be very careful inputting the codes so that you don t create unexpected problems for yourself by running the wrong component First we have a partial list of the Input Codes these test the sensors and switches INPUT COMPONENT TEST CODES Input Code Description Status Meaning 001 300 Front Door Interlock Switch High Open 001 304 Left Cover Interlock Switch High Open 005 102 Document Present Sensor High No Document 005 110 Document Registration Sensor High No Document 005 115 Document Exit Sensor High No Document 005 119 Document Duplex Sensor High No Document 005 300 Platen Switch High Open 005
13. t does it for the Diagnostics for the time being Hopefully that ll suffice to help you wet your beak There is a lot to be said about copy quality adjustments and so forth which may warrant a future article I d also love to get my paws on one of the Fuser Modules to learn how they come apart and how to perform the service on them will write something up for a future article when the time comes One other potential subject for an article would center around repairing reconditioning the Drum Copy Cartridge about Xerox brand office equipment
14. t everyone who has anything to say about it raves about it So lets continue dreaming in full color This month as promised we ll have a peek at some of the Memory Adjustments and Component Test Codes which you re most likely to need You will need to keep a list of the codes on hand because the Memory adjustments and Component Tests do not have an intuitive menu driven diagnostic screen you cant scroll through a list of possible codes you simply have to know exactly which code you want to run There are a few adjustments and tests which are available only if you have a specially equipped laptop computer or PWS Portable Workstation Fortunately a vast majority of the diagnostic functions are available from the User Interface UI Diagnostics Mode Entering Diagnostic Mode First of all to enter the User Interface UI Diagnostic Mode Turn on the power then while holding down the 0 button press Start The screen will prompt you for an Access Number use the keypad to enter 6789 which is the Default Access Number This should bring you to a menu of options to choose from e NVM Reset Non Volatile Memory NVM Initialization NVM Read Write memory adjustments Component Control for testing sensors motors etc Print for running Test Patterns from Diagnostics Subsystem Check for fuser nip measurement check out and developer unit check out e Max Setup for setting up copy quality We ll
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