Page 1 Maintenance Manual Volume II of II L5535 Multifunction Printer...
Page 3 L5535 Multifunction Printer Maintenance Manual Volume II of II...
Page 4: Trademark Acknowledgements
Epson is a registered trademark of Seiko Epson Corporation. DuraFusion, IGP, LaserLine, LinePrinter Plus, PGL, PrintNet, PSA, and Printronix are registered trademarks, and Ribbon Minder is a trademark of Printronix, Inc. Magnum and QMS are registered trademarks, and Code V is a trademark of Quality Micro Systems, Inc.
Page 5 Hiroshige and Marigold are trademarks of AlphaOmega Typography, Inc. Printronix, Inc. makes no representations or warranties of any kind regarding this material, including, but not limited to, implied warranties of merchantability and fitness for a particular purpose. Printronix, Inc. shall not...
Page 7 Volume I Table of Contents 1 Introduction ............I–19 About This Manual................I–19 How To Locate Information ............I–19 Safety Notices And Special Information ........I–19 Switches And Display Messages ..........I–20 Related Documents..............I–20 General Safety Precautions.............. I–20 Setup Safety Precautions ..............I–22 Printer..................
Page 8 Table of Contents Maintenance Schedules ..............I–69 User’s Cleaning Schedule............I–69 User’s Replacement Schedule........... I–70 Tech Service Replacement Schedule ........I–71 Maintenance Kits ................I–72 General Cleaning................I–76 Cleaning The Chargers..............I–82 Cleaning The Fuser Unit Cover Glass And Lamp Filter....I–86 Cleaning The Cut Sheet Option Rollers..........
Page 9 Table of Contents Error Code 0B — Cutter Fail (rear) .......... I–136 Error Code 0C — Transfer Platform Fail (upper) ..... I–138 Error Code 0D — Transfer Platform Fail (lower) ...... I–138 Error Code 11 — Paper Jam at Drum (B) ........ I–140 Error Code 12 —...
Page 10 Table of Contents Error Code 63 — Cut-sheet Feeder Fail ........I–162 Error Code 64 — Cut-sheet Paper Skew ......... I–163 Error Code 65 — Cut-sheet Pick Miss ........I–163 Error Code 66 — No Paper Cassette........I–164 Error Codes 67, 69, and 6B — Paper Jam at Entrance (A) ..I–164 Error Codes 68 and 6A —...
Page 11 Table of Contents Confirming The Main Charger Current Control Circuit ..... I–211 Confirming The Sleeve Motor Operation........I–212 Confirming The Magroll Motor Operation ......... I–212 Confirming The Toner Supply Clutch Operation ...... I–212 Confirming The Head Cooling Fan Operation ......I–212 Confirming The Head Blower Fan Operation ......
Page 12 Table of Contents Motors ..................I–284 Fans ..................I–297 Solenoids ................. I–301 Miscellaneous ................I–303 Under The Top Cover ..............I–314 LED Print Head ................ I–315 High-Voltage (Corona) Power Supply ........I–319 Cutter Unit ................I–320 Sensors And Switches ............. I–323 Gates..................
Page 13: Table Of Contents
Volume II Table of Contents 7 Illustrated Parts Breakdown ......II–19 Overview..................II–19 Illustrated Parts Breakdown............. II–20 8 Principles of Operation........II–111 Printing System Descriptions............II–111 General ................... II–111 The Printing Process ............... II–111 How Images Are Processed ............II–112 Bit Mapping ................
Page 14 Table of Contents Drive System Descriptions............. II–132 Drum Drive ................II–133 Developing Roller Drive ............II–134 Main Unit Feed Roller Drive ............ II–135 Gate Drive ................II–136 Transfer Unit Drive ..............II–137 Tractor Drive ................II–137 Perforation Cutter Drive ............II–138 Separator Claw Drive ..............
Page 15 Table of Contents Input / Output Signals ..............II–194 LVX040 Controller Board Input/Output Signals....... II–194 MC Board (MC-PCBA) Input/Output Signals......II–203 DC Power Supply Board (PS-PCBA) Input/Output Signals..II–216 Unit Interface ................. II–221 LED Array................II–221 Flash Power Supply ..............II–225 Developing Unit ...............
Page 16 Table of Contents Status Confirmation Processing ..........II–255 Confirmation Processing Of Unit Of Error Occurrence ... II–255 Communication Processing ............ II–255 Driving Actuators ..............II–255 Cut Sheet Output Unit..............II–256 Physical Description ..............II–256 Setup and Connections ............II–258 Basic Principles ............... II–261 C Optional Power Paper Stacker......
Page 17 Table of Contents Basic Operation ................II–289 Status Confirmation Processing ..........II–290 Communication Processing............. II–290 Driving The Stacker..............II–290 Driving The Elevator Motor............II–290 Driving The Swinger Motor............II–290 Driving The Assisting Arm Drive Motor ........II–290 Switch Monitoring ..............II–290 Belt Removal Procedures ..............
Page 18 Table of Contents...
Page 19: Illustrated Parts Breakdown
Illustrated Parts Breakdown Overview When locating parts, note the following: • Opposite each illustration is a list of the illustrated parts and their part numbers. • You can order any part that has a part number. Part numbers are not listed for common fasteners.
Page 20 Chapter Illustrated Parts Breakdown Illustrated Parts Breakdown Figure II–14. Front View of Printer ........... page II–22 Figure II–15. Printer Front Cover Assembly Open ......page II–24 Figure II–16. Developing Unit............page II–26 Figure II–17. Miscellaneous Details ..........page II–28 Figure II–18. Cleaning Unit and Photoreceptor Drum ...... page II–30 Figure II–19.
Page 21 (Parts lists begin on the next page.) II–21...
Page 22: Illustrated Parts Breakdown
Chapter Illustrated Parts Breakdown Figure II–14. Front View of Printer II–22...
Page 23 Quantity Item Part No. Description: Figure II–14. Front View of Printer Assembly 703531-003 Cassette (S500-A4) 703531-004 Cassette (S500-Letter) 703531-005 Cassette (S250-A4) 703531-006 Cassette (S250-Letter) 703531-007 Cassette (S250-B4) 703531-008 Cassette (S250-A3) 703531-009 Cassette (S250-Legal) 703531-010 Cassette (S250-Ledger) 703531-011 Swing Plate 703531-166 Face Up Tray Assembly 703531-524 Cover, Front Stand, Painted...
Page 24 Chapter Illustrated Parts Breakdown Figure II–15. Printer Front Cover Assembly Open II–24...
Page 25 Quantity Item Description: Part No. Figure II–15. Printer Front Cover Assembly Open Assembly 705739-001 Developing Unit (Rebuildable) (See Figure II–16, Item 5, For Details) 705741-001 Main Charger (See Figure II–17, Item 5, For Details) 703531-118 Discharge LED Assembly (Erase LEDs) (See Figure II–17, Item 10, For Details) 705740-001 Cleaning Unit (Rebuildable)
Page 26 Chapter Illustrated Parts Breakdown 15 Ref. Figure II–16. Developing Unit II–26...
Page 27 Quantity Item Part No. Description: Figure II–16. Developing Unit Assembly 705739-001 Developing Unit (Rebuildable) 703532-001 Toner Cartridge 703548-001 Developer Powder, Bottle (includes Nozzle) II–27...
Page 28 Chapter Illustrated Parts Breakdown Figure II–17. Miscellaneous Details II–28...
Page 29 Quantity Item Part No. Description: Figure II–17. Miscellaneous Details Assembly 705741-001 Main Charger 703531-118 Discharge LED Assembly (Erase LEDs) 705742-001 Precharger II–29...
Page 30 Chapter Illustrated Parts Breakdown Figure II–18. Cleaning Unit and Photoreceptor Drum II–30...
Page 31 Quantity Item Description: Figure II–18. Cleaning Unit and Photoreceptor Part No. Drum Assembly 705740-001 Cleaning Unit (Rebuildable) 703535-001 Photoreceptor Drum II–31...
Page 32 Chapter Illustrated Parts Breakdown *Item 16 is not part of this assembly Figure II–19. Transfer Assembly (Sheet 1 of 3) II–32...
Page 33 Figure II–19. Transfer Assembly (Sheet 2 of 3) II–33...
Page 34 Chapter Illustrated Parts Breakdown Figure II–19. Transfer Assembly (Sheet 3 of 3) II–34...
Page 35 Quantity Item Part No. Description: Figure II–19. Transfer Assembly Assembly 703531-208 Guide, Paper, Transport (upper) 703531-103 Varistor Assembly/Transfer Charger 703531-231 Paper Guide, Input, Lower 703531-127 High-Voltage Connector Assembly 705743-001 Transfer Charger 703531-139 Conveyor Assembly 703531-212 Transport Unit Shaft “A” Assembly 703531-554 Bearing, Conveyer 703531-553...
Page 36 Chapter Illustrated Parts Breakdown Figure II–20. Fuser Unit (Sheet 1 of 4) II–36...
Page 37 Figure II–20. Fuser Unit (Sheet 2 of 4) II–37...
Page 38 Chapter Illustrated Parts Breakdown Figure II–20. Fuser Unit (Sheet 3 of 4) II–38...
Page 39 ° This view is rotated 180 Figure II–20. Fuser Unit (Sheet 4 of 4) II–39...
Page 40 Chapter Illustrated Parts Breakdown (Parts lists continue on the next page.) II–40...
Page 41 Quantity Item Part No. Description: Figure II–20. Fuser Unit Assembly 202838-001 Lamp Housing Filter, L5035/L5535 703531-138 Glass Frame Assembly (This Assembly Includes Six Items) 703531-066 Fuser Cover Glass 706309-001 Packing Fuser 2, Glass Frame BK 703531-165 Trigger Coil Assembly 703531-113 Connector/Fuser FU-Male (2 ea./set)
Page 42 Chapter Illustrated Parts Breakdown *Item 20 is not part of this assembly. Figure II–21. Base, WT (Waste Toner) Assembly II–42...
Page 43 Quantity Item Description: Figure II–21. Base, WT (Waste Toner) Part No. Assembly Assembly Base, WT (Waste Toner) Assembly 703531-153 Sensor A PCBA 703531-106 Microswitch V-014-1C23 703531-154 Sensor B PCBA 703539-001 Waste Toner Bottle II–43...
Page 44 Chapter Illustrated Parts Breakdown Figure II–22. Back View of Printer II–44...
Page 45 Rear Cover Assembly, Right 703531-201 Rear Cover Assembly, Left 703531-206 Top Cover Holder, C CK --------- See Figure II–23 For Close-up Of Printer 705733-005 High Voltage (Corona) Power Supply, L5035/L5535 703531-063 Connectors for High Voltage (Corona) Power Supply (set of 8) II–45...
Page 46 Chapter Illustrated Parts Breakdown Figure II–23. Back View of Printer, Close-up (Sheet 1 of 2) II–46...
Page 47 Figure II–23. Back View of Printer, Close-up (Sheet 2 of 2) II–47...
Page 48 703531-189 Cut Sheet Feeder Assembly (See Figure II–26 For Details) --------- See Figure II–27 For Details Of This Area 705733-012 MC PCBA, L5035/L5535 (See Figure II–28 For Details) 703531-167 PNE (Paper Near–End) Sensor Assembly (See Figure II–29 For Details) 704056-001 Controller Module (See Figure II–30 For Details)
Page 49 (continued) Assembly 703531-117 Lamp Cooling Blower Fan (VEF1) (AC Blower Assembly) (See Figure II–35 For Details) 705733-006 Flash Power Supply, L5035/L5535 (behind blower) (See Figure II–36 For Details) --------- DC (Main) Power Supply Assembly (See Figure II–38 For Details) 703531-147 Connector Assembly For Transfer Ozone (not visible in figure) (See Figure II–37, Item 5, For Details)
Page 50 Chapter Illustrated Parts Breakdown Figure II–24. Cut Sheet Output Assembly II–50...
Page 51 Quantity Item Part No. Description: Figure II–24. Cut Sheet Output Assembly Assembly 703531-221 Output Assembly Roller-8 703531-222 Output Assembly Roller-9 703531-226 Output Assembly Roller-12 703531-075 Sensor, Photo Interrupter (PHINT ON1517LA-(A) (Optical Sensor) 703531-034 Belt, 265MXL4.8 II–51...
Page 52 Chapter Illustrated Parts Breakdown Figure II–25. LED Print Head (LED Array) II–52...
Page 53 Quantity Item Part No. Description: Figure II–25. LED Print Head (LED Array) Assembly 703551-001 LED Print Head, 240 DPI (LED Array) 703551-002 LED Print Head, 300 DPI (LED Array) 703551-003 LED Print Head, 400 DPI (LED Array) 703531-068 Heat Pipe Assembly II–53...
Page 54 Chapter Illustrated Parts Breakdown Figure II–26. Cut Sheet Feeder Assembly (Sheet 1 of 4) II–54...
Page 55 Figure II–26. Cut Sheet Feeder Assembly (Sheet 2 of 4) II–55...
Page 56 Chapter Illustrated Parts Breakdown Figure II–26. Cut Sheet Feeder Assembly (Sheet 3 of 4) II–56...
Page 57 Figure II–26. Cut Sheet Feeder Assembly (Sheet 4 of 4) II–57...
Page 58 Chapter Illustrated Parts Breakdown (Parts lists continue on the next page.) II–58...
Page 59 Quantity Item Part No. Description: Figure II–26. Cut Sheet Feeder Assembly Assembly 703531-189 Cut Sheet Feeder Assembly 703531-072 Resist Sensor Assembly 703531-050 Pickup Roller Assembly 703531-577 Thumbscrew, In/Out 703531-051 Reverse Roller Assembly 703531-071 Cassette Sensor PCBA-1 705733-014 Feeder Unit PBA, Option 1, L5X35 703531-069 Feeder ROM-Option 1 703531-077...
Page 60 Chapter Illustrated Parts Breakdown Figure II–27. Front View, Left Side (Sheet 1 of 3) II–60...
Page 61 Figure II–27. Front View, Left Side (Sheet 2 of 3) II–61...
Page 62 Chapter Illustrated Parts Breakdown Figure II–27. Front View, Left Side (Sheet 3 of 3) II–62...
Page 63 Drum Support Assembly 703531-111 O-Ring CO-0013-A 703531-128 Drum Guide Assembly, Front 703531-114 Tractor Set (Left and Right) 705733-009 Motor Assembly, Drum, L5035/L5535 703531-075 Sensor, Photo Interrupter (PHINT) ON1517LA-(A) 703531-041 Motor Assembly, Tractor 706291-001 Pulley, Drum, 3M-51-28 706292-001 Pulley, Tractor, 3M-63...
Page 64 Chapter Illustrated Parts Breakdown Figure II–28. MC PCBA II–64...
Page 65 Quantity Item Part No. Description: Figure II–28. MC PCBA Assembly 705733-012 MC PCBA, L5035/L5535 II–65...
Page 66 Chapter Illustrated Parts Breakdown Figure II–29. PNE (Paper Near–End) Sensor Assembly II–66...
Page 67 Quantity Item Description: Figure II–29. PNE (Paper Near–End) Sensor Part No. Assembly Assembly 703531-167 PNE (Paper Near-End) Sensor Assembly 703531-154 Sensor B PCBA 703531-153 Sensor A PCBA II–67...
Page 68 Chapter Illustrated Parts Breakdown 20 25 35 Ref. Figure II–30. Controller Module (Sheet 1 of 3) II–68...
Page 69 Figure II–30. Controller Module (Sheet 2 of 3) II–69...
Page 70 Chapter Illustrated Parts Breakdown Figure II–30. Controller Module (Sheet 3 of 3) II–70...
Page 71 Quantity Item Part No. Description: Figure II–30. Controller Module Assembly 171621-001 Controller Module 172068-001 Controller Assembly, LVX040, L55XX, Spare (PCBA with I/O Panel) 203560-001 SIMM, DC DRAM, 32 MB (J10 Ref.) 203561-001 SIMM, DC DRAM, 64 MB (J10 Ref.) 203575-001 SIMM, DC Flash, 8 MB, Unprogrammed (J12 Ref.) 203574-001 SIMM, DC Flash, 16 MB, Unprogrammed (J12 Ref.)
Page 72 Chapter Illustrated Parts Breakdown Figure II–31. Head Blower Fan Assembly II–72...
Page 73 Quantity Item Part No. Description: Figure II–31. Head Blower Fan Assembly Assembly 703531-104 Head Blower Fan 703531-001 LED Air Filter II–73...
Page 74 Chapter Illustrated Parts Breakdown Figure II–32. Developing Unit Drive Assembly II–74...
Page 75 Part No. Assembly Assembly 204228-001 Developer Drive Unit Assembly 703531-218 Developing Drive Unit Gear #9 703531-134 Gear Assembly For Developing Drive Unit, L5035/L5535 202834-001 Developing Drive Unit Gear #10 705733-011 Magroll Motor Assembly 705733-010 Sleeve Motor Assembly 703531-216 Developing Drive Unit Gear #6...
Page 76 Chapter Illustrated Parts Breakdown Figure II–33. General Details (Sheet 1 of 2) II–76...
Page 77 Figure II–33. General Details (Sheet 2 of 2) II–77...
Page 78 Chapter Illustrated Parts Breakdown (Parts lists continue on the next page.) II–78...
Page 79 Quantity Item Part No. Description: Figure II–33. General Details Assembly 703531-107 Cable Assembly, Developing Unit (I/O 26 Harness Assy) Drawer Harness Assembly 703531-075 Sensor, Photo Interrupter (PHINT) ON1517LA-(A) 703531-159 Transfer Elevator Motor 703531-141 Elevator Motor Unit (whole unit includes motor, sensors, bracket) II–79...
Page 80 Chapter Illustrated Parts Breakdown Figure II–34. Smoke Filter Box II–80...
Page 81 Quantity Item Part No. Description: Figure II–34. Smoke Filter Box Assembly 703540-001 Smoke Filter Box (VEFE Assembly) 703531-116 Smoke Filter Blower Fan (VEF0) (Main Blower Fan) II–81...
Page 82 Chapter Illustrated Parts Breakdown Figure II–35. Lamp Cooling Blower Fan (AC Blower Assembly) II–82...
Page 83 Quantity Item Description: Figure II–35. Lamp Cooling Blower Fan (AC Part No. Blower Assembly) Assembly 703531-117 Lamp Cooling Blower Fan (VEF1) (AC Blower Assembly) 706285-001 TC Sensor BK (Blower Thermal Sensor) II–83...
Page 84 Chapter Illustrated Parts Breakdown Figure II–36. Flash Power Supply II–84...
Page 85 Quantity Item Part No. Description: Figure II–36. Flash Power Supply Assembly 705733-006 Flash Power Supply, L5035/L5535 703531-561 Capacitor II–85...
Page 86 Chapter Illustrated Parts Breakdown Figure II–37. Miscellaneous Details II–86...
Page 87 Quantity Item Part No. Description: Figure II–37. Miscellaneous Details Assembly 703531-147 Connector Assembly For Transfer Ozone 703531-163 Varistor/High-Voltage Cable II–87...
Page 88 Chapter Illustrated Parts Breakdown Figure II–38. DC (Main) Power Supply II–88...
Page 89 Quantity Item Part No. Description Figure II–38. DC (Main) Power Supply Assembly 705733-007 DC Power Supply PCBA, L5035/L5535 202836-001 Fan, DC Power Supply, L5035/L5535 202837-001 Relay, DC Power Supply, L5035/L5535 II–89...
Page 90 Chapter Illustrated Parts Breakdown Figure II–39. Back View, Left Side (Sheet 1 of 5) II–90...
Page 91 Figure II–39. Back View, Left Side (Sheet 2 of 5) II–91...
Page 92 Chapter Illustrated Parts Breakdown Figure II–39. Back View, Left Side (Sheet 3 of 5) II–92...
Page 93 Figure II–39. Back View, Left Side (Sheet 4 of 5) II–93...
Page 94 Chapter Illustrated Parts Breakdown Figure II–39. Back View, Left Side (Sheet 5 of 5) II–94...
Page 95 Quantity Item Part No. Description: Figure II–39. Back View, Left Side Assembly 703531-156 Cutter Solenoid Assembly 703531-029 Belt 60S3M174 -------- Exit Assembly 703531-031 Belt 60S3M264 706293-001 Ply #M-64-24 2-Gang 204698-001 Feed Motor Assembly 703531-075 Sensor, Photo Interrupter (PHINT) ON1517LA-(A) 703531-028 Belt 3M-132-6 703531-031 Belt 60S3M264...
Page 96 Chapter Illustrated Parts Breakdown Figure II–40. Drum Shaft Assembly and Belts II–96...
Page 97 Quantity Item Part No. Description: Figure II–40. Drum Shaft Assembly and Belts Assembly 705579-001 Cleaner Driver Coupler (metal) 706303-001 Bearing, 688AZZNR 703531-032 Belt 60S3M501 703531-532 Gear, Cleaner Drive 703531-031 Belt 60S3M264 703531-075 Sensor, Photo Interrupter (PHINT) ON1517LA-(A) 703531-133 Tension Pulley, Drum Assembly 703531-144 Shaft Assembly, Drum 703531-234...
Page 98 Chapter Illustrated Parts Breakdown Figure II–41. Flash Duct Assembly II–98...
Page 99 Quantity Item Part No. Description: Figure II–41. Flash Duct Assembly Assembly 703531-105 Fuser Cooling Fan II–99...
Page 100 Chapter Illustrated Parts Breakdown Figure II–42. Bracket Assembly, FU (Fuser Unit) Connector II–100...
Page 101 Quantity Item Description Figure II–42. Bracket Assembly, FU (Fuser Part No. Unit) Connector Assembly 703531-112 Harness Assembly, Halogen 703531-142 Fuser Connector (2 ea./set) II–101...
Page 102 Chapter Illustrated Parts Breakdown Figure II–43. Back of Printer, Left Side (Sheet 1 of 6) II–102...
Page 103 Figure II–43. Back of Printer, Left Side (Sheet 2 of 6) II–103...
Page 104 Chapter Illustrated Parts Breakdown Figure II–43. Back of Printer, Left Side (Sheet 3 of 6) II–104...
Page 105 Figure II–43. Back of Printer, Left Side (Sheet 4 of 6) II–105...
Page 106 Chapter Illustrated Parts Breakdown Figure II–43. Back of Printer, Left Side (Sheet 5 of 6) II–106...
Page 107 This view is rotated 180° Figure II–43. Back of Printer, Left Side (Sheet 6 of 6) II–107...
Page 108 Chapter Illustrated Parts Breakdown (Parts lists continue on the next page.) II–108...
Page 109 Quantity Item Part No. Description: Figure II–43. Back of Printer, Left Side Assembly 703531-570 Bearing, Shaft Roller 703531-131 EPS0 Assembly (Paper Motion Sensor) 703531-075 Sensor, Photo Interrupter (PHINT) ON1517LA-(A) 703531-106 Microswitch SW V-014-1C23 703531-129 Solenoid DS Assembly 703531-052 Separating Finger Assembly (Separator Claw Shaft Assembly) 705733-008 Sensor Assembly, Drum Surface Potential...
Page 110 Chapter Illustrated Parts Breakdown II–110...
Page 111: Principles Of Operation
Principles of Operation Printing System Descriptions General The operation of an LED printer is similar to that of a laser printer, but quite different from that of an impact printer. Quiet and fast, with excellent output resolution, LED printers are “page printers.”...
Page 112: How Images Are Processed
How Images Are Processed The L5535 printer is a page printer—it receives data from the host and stores a “page” of data in memory before printing. The printer does not print character-by-character or line-by-line.
Page 113: The Printing Mechanisms
Job Recovery The Printing Mechanisms As shown in the figure below, the printing mechanisms are divided into five sections according to the printing processes: 1. Photoconductive Section 2. Developing Section 3. Image Transfer/Separation Section 4. Fixing Section 5. Cleaning Section Separation II–113...
Page 114: Photoconductive Section
Chapter Photoconductive Section Photoconductive Section In the electrophotographic system, the photoconductive photoreceptor drum surface is exposed to light, and toner adheres to portions where the charge is neutralized (latent image formation) so that visible images are formed (developed). This section describes the three phases of photoconduction: discharge, main charging, and exposure.
Page 115 Main Charging Main Charger LED Discharge Lamp Grid + + + High-Voltage - - - (Corona) Power Varistor Supply Photoreceptor Drum Light Dark + + + + + + + + Selenium Photoconductive Material Drum Surface Conductive Base Material Low Positive Voltage High Positive Voltage + + + + Non-exposed portion (high positive voltage)
Page 116: Exposure
Chapter Photoconductive Section Exposure When the photoreceptor drum (which has been positively and uniformly charged in the main charging step) is exposed to light, the exposed areas of the photosensitive drum surface film go into conduction. Thus the charge in the exposed area is neutralized while the unexposed portions of the drum maintain approximately +580 volts.
Page 117: Developing Section
Developing Unit Developing Section In the developing section, toner is attracted to the electrostatic latent image formed in the exposure step, so that a visible image is formed on the drum surface. The developing section houses a cartridge that contains toner, a fine black powder.
Page 118: Principles Of Developing
Chapter Developing Section Developing Unit Toner Cartridge Toner Hopper Toner Supply Roller Agitator Doctor Blade Toner Empty Sensor Agitation Roller Developing Roller Toner Density Sensor Principles Of Developing The developing roller consists of a rotary inner-pole magnet and a sleeve. Inner-Pole Magnet Sleeve Developing Roller...
Page 119 Principles Of Developing 1050v Plus Component 1.5Kv Minus Component –450v DC Bias 300v When the AC bias makes the developing roller surface potential positive, the electric field between the drum and the developing roller is stronger than the magnetic force between the toner and the inner-pole magnet. As a result, the positively charged toner is attracted to the neutralized areas of the drum surface (electrostatic latent image).
Page 120: Image Transfer/Separation Section
Chapter Image Transfer/Separation Section Image Transfer/Separation Section In this section, the toner image formed on the drum surface in the developing section is transferred onto the paper supplied from the paper feed section, then the paper is separated from the drum. Transfer The toner on the drum surface is positively charged from the developing unit.
Page 121 Separation Photoreceptor Drum Paper Supply Guide Separation Claw (keeps paper from Transfer Charger (keeps paper following drum) from following drum) Separation Charger (neutralizes charge on paper) (keeps paper from being attracted to drum) To further ensure that the paper separates from the drum, the separation claws shown above mechanically separate the paper from the drum.
Page 122: Fixing Section (Fuser Unit
Chapter Fixing Section (Fuser Unit) Fixing Section (Fuser Unit) In this section, the toner that was transferred onto the paper from the drum in the transfer section is heated to a high temperature so that it is fused to the paper.
Page 123: Cleaning Section
Precharging (Precleaning Charging) Cleaning Section In this section, the drum surface, containing excess toner from the previous printing operation, is cleaned for the next printing cycle. Precharging (Precleaning Charging) After the paper is separated from the drum, some residual toner, carrier, and paper dust remain on the drum.
Page 124: Paper Feed, Transport, And Output Sections
Chapter Paper Feed, Transport, And Output Sections Paper Feed, Transport, And Output Sections The print paper is fed, transported, and output through the following mechanisms. (The cut sheet paper feed and paper output sections are optional.) Cut-sheet transfer sensor Entry roller assembly Paper output sensor, EPS0 Scuff roller assembly Main unit...
Page 125 Paper Detection Cut Sheet Paper Size Detection Paper Feed Cassette IPS 12/22 IPS 11/21 IPS 10/20 There are three holes in the forward end of the cut sheet paper feed cassettes. Plastic inserts are to be set in these holes according to the size of the cut sheet paper loaded in the cassette.
Page 126: Paper Loading
Chapter Paper Feed, Transport, And Output Sections Paper Empty Sensors Paper Size Sensors (From left to right, the sensors are designated IPS0, IPS1, and IPS2.) Two paper empty sensors, one for the upper cassette, and one for the lower cassette, detect when each paper supply cassette is empty. Paper Loading Fanfold Paper Loading When the printing instruction (PRNT signal) is issued from the controller, the...
Page 127 Paper Loading Cut Sheet Paper Loading The supply roller assembly removes the cut sheet paper from the paper supply cassette, one sheet at a time. When the paper registration sensor detects the leading edge of the cut sheet paper passing between the supply rollers, the paper registration clutch actuates to rotate the registration rollers.
Page 128: Paper Transport
Chapter Paper Feed, Transport, And Output Sections Paper Transport Fanfold Paper Transport When the MC receives the print instruction (PRNT signal) from the controller board and completes paper loading, it sends the image data request signal (VSYNC signal) to the controller and, at the same time, begins to expose the drum to the LED array light.
Page 129: Paper Output
Paper Output fuser while being carried by the paper transport unit, and enters the paper output section through the scuff roller assembly. Photoreceptor Drum Paper Output Sensor 0 (EPS0) Scuff Roller Assembly Elevator Sensor, EPS4 Elevator sensor, EPS4 Transport Belt Pre-Drum Roller Assembly Elevator Sensor, EPS3 Elevator sensor, EPS3...
Page 130: Paper Parking
Chapter Paper Feed, Transport, And Output Sections Cut Sheet Paper Output In the cut sheet paper mode, the output paper can be oriented in the horizontal direction (toward the faceup tray) or upward (toward the facedown tray). When the MC receives the print instruction (PRNT signal) from the controller board and completes drum cleaning, the transfer unit goes up to its upper limit, and then the paper output gate moves down to open the cut sheet paper output path.
Page 131 Paper Parking If any error occurs during printing, the printer goes into the offline idling state and the paper stops immediately. After the error condition is cleared, it is necessary to remove the paper from the tractors and reload it. Paper Backward-Feed Cutter Photoreceptor...
Page 132: Drive System Descriptions
Chapter Drive System Descriptions Drive System Descriptions The printer drive system is shown in the following illustration. Cut Sheet Paper Feeder Unit (optional) Cut Sheet Paper Developing Output Unit (optional) Unit Fuser Unit Main Unit Transfer Conveyer Unit (1) Drum Motor (DRM) (9) Tractor Motor (TRM) (10) Cutter Motor (CMT) (2) Magroll Motor (MRM)
Page 133: Drum Drive
Drum Drive Drum Drive The photoreceptor drum is driven by the drum motor, which also drives the drum cleaner conductive brush and recovery roller assembly. Drum Cleaning Unit Pre-Drum Roller Drum Motor II–133...
Page 134: Developing Roller Drive
Chapter Drive System Descriptions Developing Roller Drive The developing roller consists of the inner pole magnet and the sleeve. The magroll motor drives the inner pole magnet; the sleeve motor drives the sleeve. The magroll motor also drives the agitation roller via the inner pole magnet.
Page 135: Main Unit Feed Roller Drive
Main Unit Feed Roller Drive Main Unit Feed Roller Drive The main unit feed roller is driven by the main unit feed motor, which also drives the scuff and paper output rollers. Paper Output Roller Scuff Roller Assembly Intermediate Roller Main Unit Feed Roller Entry Roller...
Page 136: Gate Drive
Chapter Drive System Descriptions Gate Drive The two paper output path gates are driven by their respective solenoid coils. Paper Output Roller Face Gate Paper Output Gate Paper Output Gate Solenoid Face Gate Solenoid II–136...
Page 137: Transfer Unit Drive
Transfer Unit Drive Transfer Unit Drive When the cams on the transfer elevator motor shaft rotate, they cause the transfer unit to move up and down. Transfer Elevator Motor Transfer Unit Tractor Drive The tractor is driven by the tractor motor. The belts are critical, for timing. Tractor Tractor Motor Ratio = 4:1...
Page 138: Perforation Cutter Drive
Chapter Drive System Descriptions Perforation Cutter Drive The perforation cutter is a disc that is driven across the paper path by the cutter motor. While the perforation cutter is operating, the printer also energizes the cutter solenoid. When the cutter solenoid energizes, it moves the paper retainer, which presses the paper.
Page 139: Separator Claw Drive
Separator Claw Drive Separator Claw Drive Two separator claws are used to mechanically remove cut sheet paper as it leaves the drum. This ensures that cut sheet paper separates from the drum as it leaves the transfer/separator section. The separator claws are driven by the separator claw solenoid.
Page 140: Cut Sheet Paper Feed Section Drive
Chapter Drive System Descriptions Cut Sheet Paper Feed Section Drive The cut sheet paper supply and feed rollers in the cut sheet feed section are driven by the cut sheet paper pickup motor and feed motor, respectively. Cut Sheet Paper Feed Motor Cut Sheet Feed Roller Cut Sheet Supply Roller...
Page 141: Control System Descriptions
Cut Sheet Paper Feed Section Drive Control System Descriptions The printer sensors are shown in the following illustration: Cut Sheet Paper Developing Cut Sheet Paper Feeder Unit (optional) Unit Output Unit (optional) Fuser Unit Main Unit Transfer/Transport Unit 21 22 (1) Paper Near-End Sensor (PNES) (15) Pickup Motor Encoder (PME) (16) Cut Sheet Paper Feed Motor Encoder (FME)
Page 142: Paper Transport System Monitoring
Chapter Control System Descriptions Paper Transport System Monitoring The paper transport system is monitored by the following sensors. (For the paper size sensors and cassette paper sensor, see “Paper Detection” on page II–124.) Cut sheet transfer sensor (CWD) Cutter All the above sensors consist of a light emitter and receptor. The state of the sensor is determined by whether the receptor detects the light from the emitter.
Page 143 Paper Transport System Monitoring Paper Near-End Sensor This is a simple sensor consisting of a light emitter (light source) and receptor (light detector). It determines paper presence depending on whether the light path between the light emitter and receptor is blocked. Paper Light II–143...
Page 144 Chapter Control System Descriptions Paper Output Sensor 0 This sensor consists of a slotted disc positioned between a light emitter and a light receptor. When the paper leading edge arrives at the sensor section, causing the disc to rotate, the light passing through the regularly spaced slots generates pulses at fixed intervals.
Page 145: Motor Rotation Control
Motor Rotation Control • Paper registration sensor (PRS) • Paper timing sensor (PTS) Motor Rotation Control The following motors are employed. Optional motors are marked with an asterisk (*). Name Type Items Driven Drum motor DC motor Photoreceptor drum and drum cleaner Main unit feed motor output rollers DC motor Main unit feed, scuff, and paper output rollers...
Page 146 Chapter Control System Descriptions Miscellaneous Motors Each of the following motors is provided with a rotating speed sensing encoder (which generates a pulse train in accordance with the speed of a slotted disc rotating between a light emitter and a light receptor): •...
Page 147: Tractor Motor
Motor Rotation Control Tractor Motor Since this motor moves the fanfold paper forward and backward to determine the print position, it is necessary to control not only its rotating speed but also its rotation direction and amount. Therefore, the encoder for this motor has three sensing elements (consisting of a light emitter and receptor) as shown below.
Page 148 Chapter Control System Descriptions corresponds to one pulse) or 1 for phase Z. One encoder revolution is equivalent to 1/2-inch paper transport. That is, this encoder generates pulses at a frequency twice as high as that of 400-dpi raster scanning (horizontal scanning).
Page 149 Motor Rotation Control Transfer Elevator Motor This is a 2-phase 4-pole stepper motor. Its permanent magnet rotor rotates when pulse signals, which are 90° out of phase, are applied to four electromagnets as shown below. (One pulse provides a step angle of 1.8°.) The transfer unit moves up or down when the shaft (cam shaft) of this motor rotates 180°...
Page 150 Chapter Control System Descriptions instruction pulse is fed in this state, the motor reverses so that the transfer unit is lowered by cam action, and when the tape blocks the light path between the light emitter and receptor of the transfer unit lower-limit sensor (TULL), the motor stops again.
Page 151: Drum Surface Potential Control
Drum Surface Potential Control Perforation Cutter Motor As shown below, the perforation cutter is secured to the belt which runs between the front and rear sides of the printer. When the cutter motor rotates this belt, the cutter reciprocates. Front Side of Printer Perforation Cutter Belt...
Page 152: Toner Density Control
Chapter Control System Descriptions flow to the main charger in accordance with the difference between the measured drum surface potential and the target potential value stored in the EEPROM of the CPU. The EEPROM value is set through the operator control panel, “Drum Surface Voltage”...
Page 153 Toner Density Control for magnetic permeability changes to detect a toner density decrease. When a toner density lower than 11% is detected, the toner supply clutch (TSM) turns ON and remains ON for 1 second so that the toner supply roller rotates to supply the toner from the hopper to the agitation chamber.
Page 154: Remaining Toner Level Monitoring
Chapter Control System Descriptions Remaining Toner Level Monitoring The toner empty sensor’s piezoelectric oscillator is embedded in the side of the developing unit toner hopper. While toner particles are in contact with the detection surface, this oscillator does not vibrate. However, if nothing is in contact with the detection surface due to toner level decrease in the hopper, the oscillator begins to vibrate, causing the printer to sense that the remaining toner level is too low.
Page 155: Waste Toner Monitoring
Waste Toner Monitoring Waste Toner Monitoring The waste toner bottle full sensor, which consists of a light emitter and receptor, is attached to the waste toner recovery unit. When waste toner within the waste toner bottle blocks off the sensor light path, the waste toner bottle full signal (WTBF1) is asserted.
Page 156: Head Temperature Monitoring
Chapter Control System Descriptions Head Temperature Monitoring The printer uses a thermistor (HTS) to monitor the LED head temperature to avoid excessive printhead temperature during printing, When the LED head temperature rises to 45°C, the printer considers it an error, stops printing operations, cools the LED head with a heat pipe and a head cooling fan, waits until the LED temperature falls below 45°C, and goes into the online idling state to become ready to resume printing.
Page 157: Fuser Temperature Monitoring
Fuser Temperature Monitoring Fuser Temperature Monitoring The fuser temperature rises considerably when the xenon flash lamp is activated. Thus, a thermistor, the lamp thermistor (LTS) is used to monitor the fuser temperature. When the thermistor detects a temperature of 80°C or higher, the printer stops printing and cools the fuser with the lamp cooling blower and fuser reflector plate cooling fan (FCF).
Page 158: Developing Bias Adjustment
Chapter Control System Descriptions Developing Bias Adjustment The developing bias to be applied to the developing roller can be adjusted by varying the DC component with the developing bias potential setup command from the controller. Developing Unit MC-PCBA Data Memory Developing Bias Potential Setup Command Controller...
Page 159: Operational Sequences
Developing Bias Adjustment Operational Sequences Upon power on, the printer performs the following operations: Power On MC Board Initialization Printer Controller Board Initialization Reset Command Sent Error Found Mechanical Initialization Fault State (Offline) Self-Diagnostic Check No Error Found Idling State (Online) Engine Operation Request Page Received...
Page 160: Electronics Initialization
Chapter Operational Sequences Electronics Initialization EPRDY Signal This signal is asserted by the print engine to inform the controller that the engine is ready for communication. When this signal goes true, the controller may poll the engine status by sending the “Basic Read Status” command. SYNC Signal When power is turned on, the engine asserts the SYNC signal (raster sync) at fixed intervals (937.5 µsec for 240 dpi, 750 µsec for 300 dpi, or 562.5 µsec for...
Page 161: Mechanical Initialization
Mechanical Initialization Mechanical Initialization Start Conditions Mechanical initialization starts when either of the following situations occurs: • The mechanical initialization routine is called by the MC initialization routine. • The controller asserts the engine operation request command for a reset (mechanical initialization).
Page 162: Printing Operations
Chapter Operational Sequences The main unit feed motor runs at the low speed. If any of the fanfold paper remains when the tractor is driven, it is detected by paper output sensor 4. Paper fanfolding unit stopped. If any of the fanfold paper remains, the vacuum fan motor and main unit feed motor also stop.
Page 163 Printing Operations loading, before asserting the image data (video signal) request VSYNC signal. In drum cleaning, the following routine is executed. a. The drum motor starts running, and the discharge lamp lights at the high power level. b. The main charger and precharger simultaneously turn ON when drum rotation is stabilized.
Page 164 Chapter Operational Sequences 7. Transfer/separation charger ON. The back surface of the paper transported against the drum surface is charged to transfer the toner image from the drum surface to the paper and separate the paper from the drum. 8. LSCA (page last raster) signal assertion. When the last raster of each page begins to be scanned in the fanfold paper mode, the LSCA signal is asserted to inform the controller of the scanning of the last raster.
Page 165 Printing Operations 16. Drum cleaning (post-printing). In this step, the following routine is executed. a. The main charger, magroll motor, sleeve motor, and developing bias turn OFF. b. When the drum has made two revolutions, the precharger and cleaning bias turn OFF. c.
Page 166 Chapter Operational Sequences then asserts the video signal acquisition VGATE (video gate) signal and VDO (video) signal. The VGATE signal is successively asserted for individual horizontal scan periods. However, the VDO signal is asserted only for the pixels to be printed. When the VDO signal is asserted, LED illumination occurs.
Page 167: Command Operations
Command Operations 16. Drum cleaning (post-printing). The same operations are performed as stated under fanfold paper printing (see page II–162). 17. Printer switched to online idling state. Command Operations The engine performs the indicated operations upon receiving the following engine operation request commands from the controller. Auto-Load Fanfold Paper 1.
Page 168 Chapter Operational Sequences 4. Ejects the unfixed portion of the remaining paper. Activates the tractor motor, and transports the perforation that was at the transfer point to the cutter position. At this time, the flash lamp is turned on and off with the tractor motor activation and deactivation, to fix the unfixed portion.
Page 169: Supply Toner
Command Operations Feed Fanfold Paper (1/2 Inch) 1. Turns on the transport unit. Activates the main unit feed motor (high-speed side) and vacuum fan. 2. Opens the face gate. Opens the transport path to the faceup paper output tray. Controls the paper output gate to the condition memorized in the fixed memory.
Page 170 Chapter Operational Sequences II–170...
Page 171: Block Diagram
Electrical and Wire Data Block Diagram Power Cut Sheet Paper Feeder and Output Stacker Print (optional) (optional) Head 6.144 MHz Serial 9600 bps Serial Motors, Chargers, High-Voltage Clutches, Developing Unit, (Corona) Solenoids, Cleaning Unit, Power Supply etc. and Transfer Unit Sensors MC-PCBA Actuators...
Page 172: Printer Interconnection Diagram
Appendix A Printer Interconnection Diagram Printer Interconnection Diagram Print Engine Controller Module —see Print Engine Interconnection Diagram on following pages Cable Assy 171254-001 MC-PCBA PCN2 To/From Parallel Expansion Host Cable Assy Port Computer Serial 703700-001 232/422 (I/O Panel) Back LVX040 Plane Controller Cable Assy...
Page 173: Print Engine Interconnection Diagram
Print Engine Interconnection Diagram (Diagram continues on the next page.) II–173...
Page 174 Appendix A Print Engine Interconnection Diagram DSPS & DSPS-PCBA CN12 DCS SW CN15 CN18 CN19 PEL Discharge LEDs 6 12 13 2 CN24 TUUL CN25 TULL CN22 FGSL CN30 CN13 CN17 WTBF-LED CN20 WTBF CN26 WTBS CN14 PNES-LED CN28 CN21 PNES CN27 PBFS...
Page 175 MTR2 HVPS –V1 +HV1 Main Charger High Voltage Cleaning Roller (Corona) –V2 +HV2 Precharger Power Supply Brush Roller 705733-005 12 13 HV-CN1 Developing Unit DRL Developing Bias TSM Toner Supply Clutch TES Toner Empty Sensor TDS Toner Density Sensor –HV Transfer Charger EPS3 Separation Charger...
Page 176: Acronyms For Print Engine Interconnection Diagram
Appendix A Acronyms For Print Engine Interconnection Diagram Acronyms For Print Engine Interconnection Diagram Table II–22. Interconnection Diagram Acronyms Acronym Meaning BLW-S Exhaust Heat Blower Motor Current Sensor (Paper) Cutter Motor CPS0 Cutter Position Sensor 0 (Front) CPS1 Cutter Position Sensor 1 (Rear) (Paper) Cutter Solenoid Cover Open Switch (Cover Interlock Switch) Drum Cleaner Encoder...
Page 177 Table II–22. Interconnection Diagram Acronyms (continued) Acronym Meaning FME 20 Feed Motor Encoder 20 Feed Motor Fuser Halogen (Preheat) Lamp Head Blower Fan (LED Array Cleaning Fan) Head Cooling Fan (LED Array Cooling Fan) Head Thermal Sensor (Thermistor) HVPS High Voltage (Corona) Power Supply Lamp Temperature Fuse Lamp Temperature Sensor (Thermistor) MAIN SW...
Page 178 Appendix A Acronyms For Print Engine Interconnection Diagram Table II–22. Interconnection Diagram Acronyms (continued) Acronym Meaning Paper Separation Solenoid Switch TC-SENS Fuser Temperature Sensor Switch Toner Density Sensor Transfer Elevator Motor Toner Empty Sensor Tractor Motor Encoder Tractor Motor Toner Supply Clutch TULL Transfer Unit Lower Limit Sensor TUUL...
Page 179: Introduction
Drum Surface Potential Control Circuit Explanation Of Circuits According To Function The following pages provide an introduction to the structure of the main electrical circuits of this printer. Drum Surface Potential Control Circuit Circuit action begins when the controller sends the MC board a command to set the surface potential.
Page 180 Appendix A Explanation Of Circuits According To Function Main Charger +HV (+100 to +1000 µa) High-Voltage Power Supply Drum Surface Potential Sensor +HV1 CONT +HV1 (0 to +12V) Surface Potential Measurement Circuit Current Control Circuit Absolute Operational Value Amplifier Converter Operational Circuit Amplifier...
Page 181: Printer
Developing Bias Control Circuit Developing Bias Control Circuit Drum cleaning occurs when the printer begins to print each page, as well as during printer initialization when the printer power is turned on. Circuit action begins when the controller sends the MC board a command to set the developing bias potential.
Page 182 Appendix A Explanation Of Circuits According To Function DC Bias (+200 to +600 Vdc) Plus AC Bias (1000 to 2000 Vp-p at 10.5 KHz) High-Voltage Power Supply Developing Roller DRL CONT DRL REM (0 to +12V) Developing Bias Control Circuit Operational Gate Array Amplifier...
Page 183: Toner Density And Toner Empty Circuits
Toner Density And Toner Empty Circuits Toner Density And Toner Empty Circuits The toner density control circuit regulates the supply of toner to the printer. A separate toner empty detection circuit signals the operator when the toner level becomes too low. Toner Density Control Circuit The following items together form a feedback control system that monitors and adjusts the amount of toner in the hopper:...
Page 184 Appendix A Explanation Of Circuits According To Function Toner Empty Sensor Toner Supply Clutch and Roller Toner Density Sensor TDSD TSMO TES1 Toner Supply Rectifying Toner Density Clutch Drive Circuit Circuit Sensor Circuit Signal Gate Array Conversion (Digital) MC Board Data Memory Command to Supply Toner Command to Set the Toner Density Monitoring Cycle...
Page 185: Drum Motor Control Circuit
Drum Motor Control Circuit Drum Motor Control Circuit The drum motor drives the photoreceptor drum. Since the drum is central to the printing cycle, stable rotation is required of the motor. A rotary encoder is positioned on the rotating axis of this motor. A crystal oscillator and frequency divider generate standard pulses that are equivalent to a motor rotation of 1406.25 RPM.
Page 186: Drum Counter Circuit
Appendix A Explanation Of Circuits According To Function Drum Counter Circuit Inside the rear panel of the printer is a drum count encoder that is directly connected to the drum axis. When the count enable signal (Count-EN) is asserted, the drum counter counts pulses from this encoder (1 pulse per 1 rotation of the drum), as shown in the following circuit: Drum Count Encoder +24V...
Page 187: Tractor Motor Control Circuit
Tractor Motor Control Circuit Tractor Motor Control Circuit The tractor motor controls the transfer of fanfold paper and determines print accuracy in fanfold mode. Therefore, the action of this motor is constantly controlled by the CPU along with the printing process, and is controlled by 4- bit data created in the following digital control circuit: Digital Control Circuit Timer Interrupt...
Page 188 Appendix A Explanation Of Circuits According To Function is equivalent to 1/400 inch (0.0635 mm) transfer distance of paper, the paper transfer speed for constant speed is as follows: × × - - - - - - - - - - - - - - --------- - 25.4 mm/sec...
Page 189 Tractor Motor Control Circuit Data output from the digital control circuit is equivalent to 1 V per 1 bit, and at the D/A converter, –8 to +8 V are output, corresponding to inputs of 0000 to 1111. (Note that 0000 corresponds to 0 V). This is the voltage calculated from pulse string comparison, but different outputs are required for positive rotation, negative rotation, and detent (holding position).
Page 190: Main Unit Feed Motor Control Circuit
Appendix A Explanation Of Circuits According To Function Main Unit Feed Motor Control Circuit The main unit feed motor drives the transmission shaft that rotates the transfer belt. It pulls the paper that is sent at the speed controlled by the tractor motor or drum motor.
Page 191: Transfer Elevator Motor Control Circuit
Transfer Elevator Motor Control Circuit Transfer Elevator Motor Control Circuit This motor is controlled by the following circuit: Transfer Elevator Motor Control Circuit +24V Relay Drive Circuit Current TEMP1 Current Driver Switchover TEMP2 Filter Comparator TEMA11 TEMA10 Drive Transistor TEMB11 Driver TEMB10 Current...
Page 192 Appendix A Explanation Of Circuits According To Function The TPOS signal validates (that is, gates) the drive pulses of both the current switchover signal (PMDRV) and the various motor phases, along with turning on the power supply relay (RY2). The current switchover circuit switches over the comparator voltage of the current detection voltage V by this PMDRV signal, between the motor drive and detent states, as follows:...
Page 193: Cutter Motor Control Circuit
Cutter Motor Control Circuit position), confirming that the motor is in the reference position. Then the firmware outputs 100 more pulses, to move the transfer unit to its lower limit. After this initialization, whenever the mechanism control firmware needs to raise or lower the transfer unit, it outputs 100 pulses, then verifies the position of the transfer unit by checking the upper or lower limit sensor.
Page 194: Input / Output Signals
Appendix A Input / Output Signals With ON/OFF held high and F/R (forward / reverse) held high (forward), if CPS0 is high, then transistors Q1 and Q4 will turn on, and the motor will rotate forward. The cutter that has moved to the front side is detected by cutter sensor 0, and when CPS0 goes low, the motor stops.
Page 195 LVX040 Controller Board Input/Output Signals Table II–23. Connector J2 (Serial 232/422 Port) (continued) No Connection DIFF RXD– No Connection DIFF RXD+ No Connection DIFF TXD– HOST DTR No Connection No Connection No Connection No Connection DIFF TXD+ Table II–24. Connector J3 ([Print] Engine Connector) (Backplane Connector) Signal Name FPD0...
Page 196 Appendix A Input / Output Signals Table II–24. Connector J3 ([Print] Engine Connector) (Backplane Connector) (continued) EPRDY NREADY NVSYNC NVSREQ NSTBSY NLSCA NPMOVE RESV NTOR PEN RESV TESTMODE FPD1 FPD4 FPD7 NSWFF NSWONLN RESV NKB NLDONLN VCLK N RESV RESV VGATE N II–196...
Page 197 LVX040 Controller Board Input/Output Signals Table II–24. Connector J3 ([Print] Engine Connector) (Backplane Connector) (continued) CP DATA RESV RESV RESV FPD2 FPD5 RESV NSWSTORE NSWMENU RESV NLED NLDDATA STA P STA N II–197...
Page 198 Appendix A Input / Output Signals Table II–24. Connector J3 ([Print] Engine Connector) (Backplane Connector) (continued) CMD P CMD N LSYNC N LSYNC P CPRDY NPRINT NVSYNCO NCMBSY FPCLK NSCLK FWREV RESV RESV RESV Table II–25. Connector J6 (Diagnostic Port) Signal Name EXT 5V Signal Ground...
Page 199 LVX040 Controller Board Input/Output Signals Table II–25. Connector J6 (Diagnostic Port) (continued) DB RXD No Connection Signal Ground Signal Ground Table II–26. Connector J9 (Expansion Port Connector) Signal Name Signal Ground No Connection EXP N ID SEL Signal Ground No Connection No Connection EXP N DMA REQ0 EXP N DMA REQ1...
Page 200 Appendix A Input / Output Signals Table II–26. Connector J9 (Expansion Port Connector) (continued) EXP D13 EXP D12 EXP D11 EXP D10 EXP D9 EXP D8 Signal Ground EXP D7 EXP D6 EXP D5 EXP D4 Signal Ground EXP D3 EXP D2 EXP D1 EXP D0...
Page 201 LVX040 Controller Board Input/Output Signals Table II–26. Connector J9 (Expansion Port Connector) (continued) EXP A3 EXP A2 EXP A1 EXP A0 Signal Ground Table II–27. Connector J15 (Parallel Port) Signal Name N STROBE Signal Ground Signal Ground Signal Ground Signal Ground Signal Ground Signal Ground Signal Ground...
Page 202 Appendix A Input / Output Signals Table II–27. Connector J15 (Parallel Port) (continued) Signal Ground PAPER EMPTY Signal Ground SELECT N INIT N AUTOFEED N FAULT Signal Ground Signal Ground No Connection Signal Ground N DP SEL EXT 5V N SELECT IN HOST LOGIC H N DP EN II–202...
Page 203: Mc Board (Mc-Pcba) Input/Output Signals
MC Board (MC-PCBA) Input/Output Signals MC Board (MC-PCBA) Input/Output Signals The diagram below shows the locations of all of the input/output connectors on the MC board. The tables that follow the diagram list, for each input/output connector, all of the signals on the connector and their connector pin assignments.
Page 204 Appendix A Input / Output Signals Connector CN1 (not used) Table II–28. Connector CN2 (LED Head Interface) Abbreviation Signal Name DATA1– Data 1– DATA1+ Data 1+ DATA2– Data 2– DATA2+ Data 2+ DATA3– Data 3– DATA3+ Data 3+ DATA4– Data 4– DATA4+ Data 4+ Signal Ground...
Page 205 MC Board (MC-PCBA) Input/Output Signals Table II–29. Connector CN3 Abbreviation Signal Name OP1ST+ Option 1 Status + OP1ST– Option 1 Status – OP1CM+ Option 1 Command + OP1CM– Option 1 Command – FRDY Feeder Ready Signal Ground PSTART Pick Start Signal Ground PHSEC Paper Head Search...
Page 206 Appendix A Input / Output Signals Table II–31. Connector CN5 Abbreviation Signal Name +5V (Power) FME20 Feed Motor Encoder 20 Signal Ground +5V (Power) FME19 Feed Motor Encoder 19 Signal Ground +5V (Power) CPS1 Cutter Position Sensor 1 Signal Ground +5V (Power) CPS0 Cutter Position Sensor 0...
Page 207 MC Board (MC-PCBA) Input/Output Signals Table II–32. Connector CN6 (continued) Abbreviation Signal Name *RESET Reset *RESET Reset ALARM Alarm Signal Ground *CHOK Charge OK Signal Ground FLPC Flash Power Voltage Control Signal Ground +24V (Power) Power Ground Table II–33. Connector CN7 (Controller Interface) Abbreviation Signal Name EPRDY...
Page 208 Appendix A Input / Output Signals Table II–33. Connector CN7 (Controller Interface) (continued) Abbreviation Signal Name No Connection CPRDY Controller Power Ready Signal Ground *PRNT Print Signal Ground VDO+ Video Signal + VDO– Video Signal – VCLK+ Video Clock + VCLK–...
Page 209 MC Board (MC-PCBA) Input/Output Signals Table II–34. Connector CN12 Abbreviation Signal Name Head Thermal Sensor Signal Ground Drum Cleaner Set Switch Signal Ground +5V (Power) Drum Cleaner Encoder Signal Ground Table II–35. Connector CN13 Abbreviation Signal Name Power Ground Signal Ground +24V (Signal) HV1REM High Voltage 1 Remote (Main Charger)
Page 210 Appendix A Input / Output Signals Table II–36. Connector CN14 Abbreviation Signal Name LTSH Lamp Thermistor LTSHG Lamp Thermistor (Ground) Lamp Temperature Fuse Signal Ground Table II–37. Connector CN15 Abbreviation Signal Name +24V (Power) DSPSA Drum Surface Potential Sensor A (Output) DSPSB Drum Surface Potential Sensor B (Sealed) Signal Ground...
Page 211 MC Board (MC-PCBA) Input/Output Signals Table II–38. Connector CN17 Abbreviation Signal Name Signal Ground TDSC Toner Density Sensor Control Signal Ground TSMO Toner Supply Clutch +24V (Power) TDSD Toner Density Down Sensor TESI Toner Empty Sensor +24V (Power) +24V (Signal) Table II–39.
Page 212 Appendix A Input / Output Signals Table II–41. Connector CN20 (continued) WTBX Waste Toner Bottle (Input) WTBY Waste Toner Bottle (Output) Signal Ground +5V (Signal) WTBF Waste Toner Bottle Full Sensor Signal Ground No Connection No Connection +24V (Power) Drum Counter Table II–42.
Page 213 MC Board (MC-PCBA) Input/Output Signals Table II–43. Connector CN22 (continued) TRMEA Tractor Motor Encoder Phase A TRMEZ Tractor Motor Encoder Phase Z Signal Ground +24V (Power) DRMN Drum Motor – +5V (Power) Drum Motor Encoder Signal Ground No Connection Connector CN23 (not used) Table II–44.
Page 214 Appendix A Input / Output Signals Table II–45. Connector CN25 (continued) Feed Motor +24V (Power) Cutter Solenoid CMTF Cutter Motor Forward CMTR Cutter Motor Reverse +24V (Power) GSLO Gate Solenoid Open GSLC Gate Solenoid Close +24V (Power) FGSLO Face Gate Solenoid Open FGSLC Face Gate Solenoid Close No Connection...
Page 215 MC Board (MC-PCBA) Input/Output Signals Table II–47. Connector CN27 (continued) Abbreviation Signal Name VEF0G (+5V) Ventilation Fan 0 Ground VEF0 Ventilation Fan 0 VEF1G (PG) Ventilation Fan 1 Ground PSERR Power Supply Error BLWP Cooling Fan Error BLWN Cooling Fan Error (Ground) Table II–48.
Page 216: Dc Power Supply Board (Ps-Pcba) Input/Output Signals
Appendix A Input / Output Signals Table II–49. Connector CN30 (continued) DBIALM Developing Unit Bias Alarm SCHALM Separator Charger Alarm DC Power Supply Board (PS-PCBA) Input/Output Signals The figure below shows the locations of all of the input/output connectors on the PS-PCBA (the main board in the DC power supply).
Page 217 DC Power Supply Board (PS-PCBA) Input/Output Table II–50. Connector CN1 Abbreviation Signal Name AC Input (LINE) Table II–51. Connector CN2 Abbreviation Signal Name AC Input (NEUTRAL) Table II–52. Connector CN3 Abbreviation Signal Name CON/L Controller Module AC Output (LINE) HAL/L Halogen Lamp AC Output (LINE) CON/N Controller Module AC Output (NEUTRAL)
Page 218 Appendix A Input / Output Signals Table II–55. Connector CN6 Abbreviation Signal Name +24V +24 V (Standby) COV/OP+ Cover Open Sensor (+ Side) No Connection COV/OP– Cover Open Sensor (– Side) Table II–56. Connector CN7 Abbreviation Signal Name HAL+ Halogen Lamp Control Signal (+ Side) HAL–...
Page 219 DC Power Supply Board (PS-PCBA) Input/Output Table II–58. Connector CN9 Abbreviation Signal Name PFN+ Blower Drive (DC +24 V) PFN– Blower Drive (DC GND) Table II–59. Connector CN10 Abbreviation Signal Name +5VL +5 V (Main) +24VOP +24 V (Option) (Option-1, Cut Sheet) +24VOP +24 V (Option) (Option-1, Cut Sheet) +24VOP...
Page 220 Appendix A Input / Output Signals Table II–60. Connector CN11 (continued) Abbreviation Signal Name Table II–61. Connector CN12 Abbreviation Signal Name +5VH +5 V (LED Head) +5VH +5 V (LED Head) +5VH +5 V (LED Head) +5VH +5 V (LED Head) +5VH +5 V (LED Head) +5VH...
Page 221: Unit Interface
LED Array Table II–63. Connector CN14 Abbreviation Signal Name PFN+ DC Power Supply Box Fan Drive (+ Side) PFN– DC Power Supply Box Fan Drive (– Side) Unit Interface LED Array Connection The LED array is connected to the head driver on the MC board and to the LED drive power supply on the main power supply, as shown in following diagram: LED Drive Power Supply...
Page 222 Appendix A Unit Interface Data 4 ⇒ Load ⇒ Strobe 1 (*STB1) ⇒ Strobe 2 (*STB2) ⇒ Logic power supply + (VCC) ⇒ Logic power supply – (VSS) ⇒ LED drive power supply + (VDD) ⇒ LED drive power supply – (GND) ⇒...
Page 223 LED Array For 300 DPI (total number of emitters 4416): Signal Number of dots Data 1 1152 dots Data 2 1152 dots Data 3 1152 dots Data 4 960 dots For 240DPI (total number of emitters 3520): Signal Number of dots Data 1 896 dots Data 2...
Page 224 Appendix A Unit Interface LED Drive Power Supply – (SG2, CN12 on Main Power Supply) This is the return (negative) voltage (GND; SG2) from the main power supply. It is not connected to the logic power supply negative side. Interface Circuits An RS-422 interface circuit is used for transmission and reception of each of the following signals: Clock, Data 1 through Data 4, Load, Strobe 1, and Strobe 2.
Page 225: Flash Power Supply
Flash Power Supply CN12 Pin Assignment Pin No. Signal +5VH +5VH +5VH +5VH +5VH +5VH Flash Power Supply Connection The flash power supply is connected to the MC board and to the DC power supply as shown in the following diagram: AC In from Power Mains Circuit Breaker Noise Filter...
Page 226: Interface Signals
Appendix A Unit Interface Interface Signals The following signals are sent and received between the MC board and the flash power supply: MC board ⇔ Flash power supply Signal Charge (*CHON) ⇒ Flash (TRG) ⇒ Reset (*RESET) ⇒ ⇐ Alarm (ALARM) ⇐...
Page 227 Flash Power Supply Logic Power Supply + This is the positive side of the logic power supply. Logic Power Supply – This is the negative side of the logic power supply. Drive Power Supply + This is the positive side of the lamp drive power supply. Drive Power Supply –...
Page 228: Developing Unit
Appendix A Unit Interface Developing Unit Connection The developing unit is connected both to the MC board and to the high- voltage power supply, as shown in the following diagram: High-Voltage MC Board Power Supply Signal and Power Supply Connector Developing Unit Interface Signals The following signals are sent and received between the MC board and the...
Page 229 Developing Unit Toner Supply Roller Drive (TSMO) This signal controls the engagement and release of the clutch that drives the toner supply roller. Toner Density Insufficient (TDSD) This is a logic signal from the toner density sensor, indicating that the toner density has dropped below the predetermined reference level.
Page 230 Appendix A Unit Interface Signal Pin Assignments Interface signals are assigned to MC board connector (CN17) and the developing unit interface connector pins as follows: Developing Unit Connector Pin No. Signal TDSC TSMO (S24V) TDSD TESI (S24V) (S24V) MC Board Connector (CN17) Pin No.
Page 231: High-Voltage (Corona) Power Supply
High-Voltage (Corona) Power Supply High-Voltage (Corona) Power Supply Connection The high-voltage power supply is also known as the corona power supply. It is connected to the MC board and to the various areas of the printer that require high voltage, as shown in the following diagram: –V2 Drum Cleaner (Semiconducting Brush)
Page 232 Appendix A Unit Interface Interface Signals The following signals are sent and received between the MC board and the high-voltage power supply: MC ⇔ High-voltage Signal power supply Main charger remote ON/OFF (+HV1 REM) ⇒ Main charger current control (+HV1 CONT) ⇒...
Page 233 High-Voltage (Corona) Power Supply Cleaning Bias Remote ON/OFF This signal turns on or off the bias voltages supplied to the drum cleaner. There are two bias voltages controlled by this signal: the semiconducting brush bias voltage (–V2), and the recovery roller bias voltage (–V1). A variable resistor (B type) sets the magnitude of the recovery roller bias voltage (–V1) to between –200 V and –400 V.
Page 234 Appendix A Unit Interface Signal Pin Assignments Interface signals are assigned to the MC board connector (CN13) and to the high-voltage power supply interface connector (CN1) pins as follows: Pin No. Signal +24V +HV1 REM +HV1 CONT –HV REM +HV2 REM –V REM DRL REM DRL CONT...
Page 235: Physical Description
Optional Cut Sheet Feeder Physical Description The front, back, and rear views of the cut sheet feeder unit are shown in the following illustrations. Front Side Lower Level Paper Empty Sensor (PES2) Carry-Out Rollers Upper Level Paper Empty Sensor (PES1) Cassette Support Cassette Setter Paper Guide...
Page 236: Back Side
Appendix B Physical Description Back Side Cut Sheet Feeder Roller Paper Register Sensor (PRS) Register Roller Paper Register Clutch (PRC) Paper Timing Sensor (PTS)
Page 237: Rear Side (Board Side)
Rear Side (Board Side) Rear Side (Board Side) Cut Sheet Pickup Motor (PPM) Upper Level Cut Sheet Pickup Clutch (PPC1) Cut Sheet Feeder Motor (PFM) Paper Register Clutch (PRC) Lower Level Cut Sheet Pickup Clutch (PPC2) Paper Guide Interlock Switch (ICIL) Cut Sheet Pickup Motor Encoder (PME) Cut Sheet Feed Motor Encoder (FME)
Page 238: Paper Feed Cassette
Appendix B Paper Feed Cassette Paper Feed Cassette Hopper Stopper Top Cover Plastic Inserts Hopper Hopper Pin...
Page 239: Setup And Connections
Setup Setup And Connections Setup 1. Install the cut sheet feeder unit by hooking the hooks on the front and rear ends of its frame onto the printer frame. 2. Secure the flanges on the front and rear ends of the feeder frame to the printer frame with 2 bolts each.
Page 240 Appendix B Setup And Connections 3. Remove the wire cover. Pass the wires going to the front cover interlock switch and to the control panel underneath this cover, then install the wire cover. Wire Cover Wire going to the Operation Panel; wire going to the Front Cover Interlocking Switch...
Page 241: Connections
Connections Connections Connect the cut sheet feeder unit to the MC board and DC power supply board, as shown below. Cut Sheet Feeder Unit Feeder PCBA with ROM-Option 1 J60101 J03102 Print Engine Part of CN3 CN10 MC-PCBA PS-PCBA...
Page 242: Basic Principles
Appendix B Basic Principles Basic Principles Upon command from the printer, the cut sheet feeder picks up paper from the selected paper cassette and supplies the paper to the transfer point. The cut sheet feeder is equipped with the following sensors and actuators: ICIL2 ICIL1 IPS10-12 /IPS 20-22:...
Page 243: Drive Principles
Drive Principles Drive Principles There are four types of rollers in the transport path of the cut sheet feeder unit: • Carry-out roller — driven by the cut sheet pickup motor, via the cut sheet pickup clutch. • Input feed roller — driven by the cut sheet pickup motor, via the cut sheet pickup clutch.
Page 244: Control Principles
Appendix B Control Principles Control Principles This section describes the sensors and switches in the cut sheet feeder. Upper Level / Lower Level Paper Size Sensor Each sensor, the upper sensor and the lower sensor, consists of a PCBA with three switches mounted on it.
Page 245: Paper Feed Cassettes
Paper Feed Cassettes Paper Feed Cassettes There are three holes in the forward end of the cut sheet paper feed cassettes. Plastic inserts are to be set in these holes according to the size of the cut sheet paper loaded in the cassette (as shown in the table below). When the plastic inserts in the cassette contact the paper size sensors on the printer, the printer determines that the paper cassette is in position and identifies the paper size.
Page 246: Paper Register Sensor (Prs)
Appendix B Control Principles Upper Level / Lower Level Paper Empty Sensor (PES1 / PES2) These sensors are photointerrupters. When the paper in the paper supply cassette runs out, the lever drops and blocks the light between the light emitters and receptors, signalling “no paper.” (Paper Present) (No Paper Present) Lever...
Page 247: Paper Timing Sensor (Pts)
Paper Timing Sensor (PTS) Paper Timing Sensor (PTS) This sensor is also a photo-interrupter. However, a lever is not used, because the output signal of the photo-interrupter serves as the cut sheet leading-edge detection signal, which affects printing quality. The paper timing sensor consists of an LED light emitter and receptor on the same side of the transport path.
Page 248: Cut Sheet Pickup Motor Encoder (Pme)
Appendix B Control Principles Cut Sheet Pickup Motor Encoder (PME) The cut sheet pickup motor encoder is a rotary encoder that consists of a slotted plate attached to the cut sheet pickup motor rotating axis, with a light emitter and receptor on either side of the plate. The motor rotation is detected by the pulse string that is created by light passing through the rotating slotted plate.
Page 249: Cut Sheet Feed Motor Encoder (Fme)
Cut Sheet Feed Motor Encoder (FME) Cut Sheet Feed Motor Encoder (FME) The cut sheet feed motor encoder is also a rotary encoder that consists of a slotted plate attached to the cut sheet pickup motor rotating axis, with a light emitter and receptor on either side of the plate.
Page 250: Paper Guide Interlock Switch (Icil)
Appendix B Control Principles Paper Guide Interlock Switch (ICIL) This is a microswitch that detects whether the paper guide is open or not. This switch is also interlocked with the cut sheet feeder 24 V system (actuator drive system), so that when this switch is off, the actuator power is also off. Paper Guide Interlock Switch...
Page 251: Detection Errors
Upper Level Cassette Section Error Detection Errors The errors detected by the previously discussed sensors and switches are as follows: Upper Level Cassette Section Error Error Code Contents Pickup miss Paper did not move to the paper register sensor within a certain time after the carry-out roller operated (upper level pickup misjudgment, timer started with PPC1 coming on, and timed out before...
Page 252: Transfer Unit Error
Appendix B Detection Errors Transfer Unit Error Error Code Contents Delayed jam Too much time passed for the paper to move from the paper register clutch to the paper timing sensor (delayed jam, judgment timer started with PRC coming on, and timed out before PTS on). Judgement timer setting = 680msec.
Page 253: Unit Sequencer Section Errors
Unit Sequencer Section Errors Unit Sequencer Section Errors Error Code Contents Motor revolution abnormality 1 Revolution abnormality occurred in the cut sheet pickup motor (PPM revolution abnormality, monitor timer counted up during paper supply preparation operations). Monitor timer setting = 200msec.
Page 254: Basic Operation
Appendix B Basic Operation Basic Operation The cut sheet feeder unit executes reset start processing (initializing of CPU, etc.) when power is turned on. It then executes the following main routine while waiting for the cassette specification command and the paper supply preparation start command to be transmitted from the printer.
Page 255: Mechanism Initialization
Mechanism Initialization Mechanism Initialization This processing is executed only once, to confirm that there are no errors when stopped or when the motor is on. However, when an initializing request is received from the printer, this process is executed again. The ready condition is deactivated and the bit waiting for basic status (bit 4) is cleared to “0”, the same as when initializing after reset starting.
Page 256: Cut Sheet Output Unit
Appendix B Cut Sheet Output Unit Cut Sheet Output Unit Physical Description The front and rear views of the cut sheet output unit are shown in the following illustrations. Front Side Paper Output Guide Lever Paper Output Intermediate Guide Support Frame Lever Paper Output Intermediate Guide...
Page 257: Rear Side
Physical Description Rear Side Paper Output Roller Output Sensor 2 (EPS2) Cut Sheet Transport Path Open Sensor (CWO) Entrance Roller Intermediate Roller...
Page 258: Setup And Connections
Appendix B Cut Sheet Output Unit Setup and Connections Setup 1. Install the cut sheet output unit by securing the flanges on the front and rear ends of the output unit frame to the printer frame with 2 bolts each. Front End of Output Unit Frame Printer Frame Flange...
Page 259 Setup and Connections 2. Attach the entrance roller joint shaft, then secure it with the E-ring. Entrance Roller Joint Shaft Bearing E-Ring E-ring S3M396...
Page 260 Appendix B Cut Sheet Output Unit Connections Connect the cut sheet output unit connector to the printer frame connector that connects to connector CN3 on the MC board. Printer Frame Connector Cut Sheet Output Unit Connector...
Page 261: Basic Principles
Basic Principles Basic Principles The cut sheet output unit guides cut sheet paper ejected from the main unit to the face down paper output tray on the top cover. This unit has three sets of transporting rollers: the entrance rollers, the intermediate paper rollers, and the output paper rollers.
Page 262 Appendix B Cut Sheet Output Unit...
Page 263: Front (Output Side)
Optional Power Paper Stacker Physical Description The front, rear, and internal views of the power paper stacker are shown in the following figures. Front (Output Side) DOWN Key HEAVY Key STOP Key AUTO Key Hook Head/Tail Length Measuring Gauge (in Inches) Safety Stop Bar Safety Stop Bar (not visible in figure)
Page 264: Rear (Input Side)
Appendix C Physical Description Rear (Input Side) Assisting Arm Motor Paper Surface Sensor 2 (PSS2) Swinger Assisting Arms Swinger Elevator Motor (SM) Hooks Paper Surface Sensor 1 (PSS1) Elevator Motor Drive Gear Controller Board II–264...
Page 265: Front (Interior)
Front (Interior) Front (Interior) Safety Sensor (SS1) —behind panel Transfer Belt Paper Surface Sensor 2 (PSS2) Paper Surface Sensor 1 (PSS1) II–265...
Page 266: Setup
Appendix C Setup And Connections Setup And Connections Setup CAUTION Before installing or removing the power paper stacker, the printer must be adjusted to the proper height and be leveled. Failure to do this will damage both the printer and the stacker, and will prevent installation or removal of the stacker.
Page 267 Setup Power Stacker Hook Stud Printer Printer Stud II–267...
Page 268 Appendix C Setup And Connections 2. Connect the stacker connector to the printer connector located above the noise filter box on the printer main power supply. Printer Connector Noise Filter Box 3. Attach the stacker ground wire to the correct printer ground terminal with a screw, as shown.
Page 269: Connections
Connections Connections The paper stacker is connected to the printer as follows: Print Engine MC-PCBA Power Paper Stacker Controller Board PS-PCBA CN13 II–269...
Page 270: Removal
Appendix C Removal Removal To release the stacker from the printer, press the release lever (located on the front side) to remove the hooks from the studs. Release Lever II–270...
Page 271: Operation
Connections Operation The power paper stacker contains the following keys for operating the elevator: • AUTO: Sets the elevator in automatic mode. Pressing this key causes the elevator table to rise until it reaches its maximum upper position and enables the stacker. •...
Page 272 Appendix C Operation The power stacker folds output paper at the perforation and accumulates it on the elevator table. Feed rollers transfer fan fold paper that is output from the printer. After the paper moves between the feed rollers, it is stacked on the elevator table by the action of the swinger swinging back and forth.
Page 273 Connections As fanfold paper is output from the swinger, the assisting arms respond to the actions of the swinger, and fold the paper at the perforations. The transfer belts press the paper, stacking it on the elevator table. As paper accumulates on the elevator table, the table lowers to keep the height of the paper uniform.
Page 274: Sensors And Actuators
Appendix C Sensors And Actuators Sensors And Actuators The power paper stacker has the following sensors and actuators: APS1 ESWA ESWS ESWD ESWH LIMT1 PSS1 PSS2 PSS3 LIMT2 SMT: Stacker motor SS2: Safety sensor 2 SME: Stacker motor encoder SFS: Stacker full sensor Assisting arm drive motor EDS: Elevator down sensor APS1:Assisting arm position sensor...
Page 275: Feed Roller And Transfer Belt
Feed Roller And Transfer Belt Drive Principles Feed Roller And Transfer Belt Both feed roller and transfer belt are driven by the stacker motor. Feed Roller Stacker Motor Transfer Belt II–275...
Page 276 Appendix C Drive Principles Also, the space between the transfer belts can be adjusted by the top and bottom adjusting knob. Transfer Belt Top and Bottom Adjusting Knob II–276...
Page 277: Swinger
Swinger Swinger The swinger is driven by the swinger motor. Swinger Swinger Motor II–277...
Page 278: Assisting Arms
Appendix C Drive Principles Assisting Arms The assisting arms are driven by the assisting arm drive motor. NOTE: The assisting arms are not activated when the head-to-tail length of the sheet is 7 to 8.5 inches. Assisting Arm Motor Assisting Arms Assisting Arms II–278...
Page 279: Elevator Table
Elevator Table Elevator Table The elevator table is driven by the elevator motor. Elevator Table Elevator Motor II–279...
Page 280: Transfer Unit Paper Sensor (Paper Moving Sensor) (Pms)
Appendix C Control Principles Control Principles The power paper stacker contains the control detectors (sensors and switches) described in the following sections. Transfer Unit Paper Sensor (Paper Moving Sensor) (PMS) The transfer unit paper sensor is a photointerrupter that is composed of a light emitter and receptor and a lever.
Page 281: Jam Sensor (Pps)
Jam Sensor (PPS) Jam Sensor (PPS) The jam sensor (703531-075) is a photointerrupter that consists of a light emitter, a receptor, and a lever. This sensor is located partway on the toothed belt. When the paper fold falls on this belt and kicks the lever, the light passing between the light emitter and receptor is blocked, and the sensor turns on.
Page 282: Paper Surface Sensor 2 (Pss2)
Appendix C Control Principles Paper Surface Sensor 1 (PSS1), Paper Surface Sensor 2 (PSS2) The paper surface sensor 1 and paper surface sensor 2 are each composed of light emitters and receptors located on the front side and rear side. When paper stacking on the elevator table reaches the height of the sensors, the light is blocked, turning on the sensors.
Page 283: Stacker Full Sensor (Sfs), Elevator Down Sensor (Eds)
Stacker Full Sensor (SFS), Elevator Down Sensor Stacker Full Sensor (SFS), Elevator Down Sensor (EDS) The stacker full sensor and the elevator down sensor are photointerrupter sensors, each of which detects the position of the elevator table. The stacker full sensor indicates that the amount of folded paper has reached the limit. The elevator down sensor indicates that the elevator table has reached the down position (the position where the operator removes the paper).
Page 284: Elevator Motor Encoder (Eme)
Appendix C Control Principles Stacker Motor Encoder (SME), Elevator Motor Encoder (EME) These sensors detect abnormal DC motor revolution. Each sensor consists of a timing disk attached to the motor axis, a light emitter, and a light receptor. The motor revolution is monitored by the length of time that blockages of light occur between the light emitter and receptor.
Page 285: Assisting Arm Position Sensor (Aps1)
Swinger Position Sensor (SPS), Assisting Arm Po- Swinger Position Sensor (SPS), Assisting Arm Position Sensor (APS1) Each of these sensors detects the home position of its associated stepping motor. Each sensor consists of a slotted plate, a light emitter, and a light receptor.
Page 286: Elevator Lower Limit Switch (Limt2)
Appendix C Control Principles Elevator Upper Limit Switch (LIMT1), Elevator Lower Limit Switch (LIMT2) These are limit switches that prevent the elevator table from rising too high or dropping too low. If for some reason the elevator table rises abnormally high or drops abnormally low, one of these switches comes on, and the elevator table stops.
Page 287: Safety Sensor 1 (Ss1), Safety Sensor 2 (Ss2)
Safety Sensor 1 (SS1), Safety Sensor 2 (SS2) Safety Sensor 1 (SS1), Safety Sensor 2 (SS2) These are safety switches in case the operator accidentally gets his hand caught between the frame and elevator table of the power stacker. When this happens, the bar inside the cover tilts, and the switch contacts open.
Page 288: Operator Call Status Errors
Appendix C Detection Errors Detection Errors The errors detected by these sensors and switches are as follows: Operator Call Status Errors Error Code Meaning Stacker Error Check the connector between the stacker and the printer. Interlock action Safety sensor 1 or 2 turned off, and interlock operated.
Page 289: Basic Operation
Service Call Status Errors Basic Operation After initializing (due to turning on the power or receiving an initialization request from the printer), the power stacker enters into the following main loop and repeatedly executes the various subroutines. However, the actuator driving subroutines are selectively executed only upon the power stacker receiving execution commands from the printer.
Page 290: Status Confirmation Processing
Appendix C Basic Operation Status Confirmation Processing Checks the detection data of the sensors and switches within the paper feeding unit. If there is any abnormality, executes abnormality processing. Communication Processing Loads data transmitted from the printer, executes command analyzing processing, and returns status.
Page 291: Belt Removal Procedures
Switch Monitoring Belt Removal Procedures This section describes the mechanical structure of the power paper stacker and how to remove the various belts. The power stacker should be reassembled in the reverse order of the procedures described in this section. Return the screws to their original positions, as they may vary in type.
Page 292: Power Stacker Cover
Appendix C Belt Removal Procedures Power Stacker Cover To remove the power stacker cover: 1. Disconnect the connector that is connected to the stacker cover, and remove knob D. 2. Remove the screws (5) securing the stacker cover, then pull the cover outward to remove it.
Page 293: Inside The Left Frame
Inside The Left Frame Inside The Left Frame Belt S (S3M741) Belt A Tension Pulley Belt C (S3M825) NOTE: Some stacker Belt D (S3M900) units might appear slightly different in these areas. II–293...
Page 294 Appendix C Belt Removal Procedures 1. Remove Belt S: slacken the belt by pushing the tension pulley to the right, then remove the belt. Belt S Tension Pulley II–294...
Page 295 Inside The Left Frame 2. Remove Belt A, the belt that connects the stacker motor assembly output pulley to the large pulley: turn the pulleys by hand and remove the belt. Large Pulley Stacker Motor Assembly Output Pulley Belt A II–295...
Page 296 Appendix C Belt Removal Procedures 3. Remove Belt C: first remove the E-clip. Then, remove the pulley by pulling it toward you. Finally, remove Belt C. Pulley E-Clip Belt C NOTE: Some stacker units might appear slightly different in these areas. II–296...
Page 297 Inside The Left Frame 4. Remove Belt D: rotate the pulley by hand and remove it along with the belt. Pulley Belt D NOTE: Some stacker units might appear slightly different in these areas. II–297...
Page 298 Appendix C Belt Removal Procedures 5. When replacing the belts discussed in steps 1 through 4, reinstall them in reverse order. After replacing Belt D, adjust its belt tension: a. Loosen screws A and B. Screw A Screw B b. Using a spring scale, adjust screw A such that a tension of 6 oz. deflects the belt by approximately 10 mm.
Page 299: Inside The Right Frame
Inside The Right Frame Inside The Right Frame Belt E (S3M825) II–299...
Page 300 Appendix C Belt Removal Procedures 1. Remove the E-clip from the pin. Detach the arm from the pin, and tilt the arm in the direction of the arrow, as shown. E-Clip 2. Remove the screw securing the plate, then remove the plate. Plate Screw II–300...
Page 301 Inside The Right Frame 3. Remove the pointer from Belt E. 4. Remove Belt E: first remove the E-clip from the pulley. Then, remove the belt and the pulley together. 5. Install the pulley, the E-clip, and a new Belt E. Belt E Pointer Pulley...
Page 302 Appendix C Belt Removal Procedures 6. Place knob D (shown on page II–292) on its shaft and rotate the knob fully clockwise. Then place the pointer back on Belt E at the location where it points to the “12” on the scale. Belt E Pointer Scale...
Page 303: Swinger Belts
Swinger Belts Swinger Belts The swinger belts are located on the swinger and assist arm drive units (two belts on each drive unit). Assist Arm Drive Unit Swinger Drive Unit II–303...
Page 304 Appendix C Belt Removal Procedures 1. On the swinger drive unit, disconnect the connectors (2), then detach the cables from the cable clamps. Connector Connector Cable Clamps Swinger Drive Unit II–304...
Page 305 Swinger Belts 2. Remove the E-clip, then remove the link arm from the slotted disc. E-Clip Link Arm Slotted Disc II–305...
Page 306 Appendix C Belt Removal Procedures 3. Remove the screws (3) securing the swinger drive unit, then remove the unit. Screws (3) Swinger Drive Unit II–306...
Page 307 Swinger Belts 4. On the assist arm drive unit, disconnect the connectors (2), then detach the cables from the cable clamps. Connector Connector Cable Clamps Assist Arm Drive Unit 5. Remove the E-clip on the arm, then remove the arm. E-Clip II–307...
Page 308 Appendix C Belt Removal Procedures 6. Remove the screws (3) securing the assist arm drive unit, then remove the drive unit. Assist Arm Drive Unit Screws (3) II–308...
Page 309 Swinger Belts 7. On both the swinger and the assist arm drive units: remove the screws (3), E-clip, and bushing from the motor side of the plate. Then remove the plate. 8. Replace the two belts on each drive unit. E-Clip Screws (3) Bushing...
Page 310: Elevator Belt
Appendix C Belt Removal Procedures Elevator Belt 1. Remove the screws (4) securing the stacker table assembly to the table support arms (2), then remove the stacker table assembly. Screws (5 places), in step 3 Stacker Cover Screws (4), in step 1 Knob Table Support Arms (2) Stacker Table Assembly...
Page 311 Elevator Belt 4. Remove the screws (4) securing the table support arms (2) to the stacker arm brackets (2), then remove the two table support arms, as shown below. Screws (4), Table Support Arms (2) in step 4 Screws (2), in step 5 Stacker Arm Brackets (2)
Page 312 Appendix C Belt Removal Procedures 6. Remove the screws (4) securing the belt clamp plates (2 sets), then remove the two sets of belt clamp plates from around the belts, as shown below. Tension Adjustment Nuts (4) Screws (4), Elevator Upper in step 8 Pulley Springs (2)
Page 313 Elevator Belt 10. Remove the stacker elevator belt from one of the elevator upper pulley assemblies as follows: a. Remove either of the E-clips, then pull the stacker elevator pulley pin out of the stacker elevator pulley bracket. Stacker Elevator Pulley Pin Stacker Elevator Pulley Bracket E-Clip E-Clip...
Page 314 Appendix C Belt Removal Procedures d. Reassemble the elevator upper pulley assembly in reverse order. See the warning note that follows. WARNING When installing the elevator upper pulley assembly, adjust the tension nut such that it takes 14 oz. to deflect the belt 10 mm. Use caution, as the springs are very strong.
Page 315: Stacker Motor
Stacker Motor Stacker Motor 1. Disconnect the sensor connector (not shown) and the stacker motor connector from their mating harness connectors, then detach the cables from the cable clamp. Stacker Motor Assembly Stacker Motor Assembly Output Pulley ° This view is rotated 180 Stacker Motor Connector...
Page 316 Appendix C Belt Removal Procedures 2. Remove Belt S: slacken the belt by pushing the tension pulley to the right, then remove the belt. Belt S Tension Pulley II–316...
Page 317 Stacker Motor 3. Remove Belt A, the belt that connects the stacker motor assembly output pulley to the large pulley: turn the pulleys by hand and remove the belt. 4. Remove the E-clip securing the stacker motor assembly output pulley, then remove the output pulley.
Page 318 Appendix C Belt Removal Procedures 6. Remove the screws (3) securing the stacker motor assembly to the stacker frame, then remove the stacker motor assembly, as shown below. Stacker Frame Stacker Motor Sensor Screws (3) Stacker Motor Assembly Sensor Mounting Screw (on bottom of Sensor) 7.
Page 319: D Engine Checker
Engine Checker Overview The engine checker is a tool created to help troubleshoot the printer engine. It is used to test NVRAM, switches, sensors, and motors, and can run a set of basic functions. It should be used when making potentiometer adjustments (also referred to as “volume”...
Page 320: Connecting The Engine Checker
Appendix D Connecting The Engine Checker Connecting The Engine Checker Figure II–44 gives an overview of connecting the engine checker to the printer. Printer Engine Checker Controller Interface LED Head Interface MC Board Engine Checker Figure II–44. Connecting the Engine Checker (Overview) CAUTION Be sure printer power is off before connecting the engine checker to the printer.
Page 321 4. Connect the engine checker harness connectors to MC board connectors CN2 and CN7. See Figure II–44 and Figure II–45. MC-PCBA (Mechanism Control Printed Circuit Board Assembly) Figure II–45. MC Board Connector Locations II–321...
Page 322 Appendix D Connecting The Engine Checker 5. Set MC board rotary switch SW1 either to position 1 (for messages in Japanese) or to position 2 (for messages in English). See Figure II–46. 6. Turn on the printer power. Reserved Engine Self-Test Position (“Test Print”...
Page 323: Disconnecting The Engine Checker
Disconnecting The Engine Checker CAUTION Be sure printer power is off before disconnecting the engine checker from the printer. Use the following procedure to disconnect the engine checker from the printer: 1. Turn off the printer power. 2. Refer to Figure II–46 on page II–322 and set MC board rotary switch SW1 to the “Normal Operating Position,”...
Page 324: Operation
Appendix D Using The Control Panel Operating Keys • Start — Starts the test displayed on the menu. • Stop — Stops the test displayed on the menu. • Enter — Stores the displayed parameter into NVRAM; terminates an entry from the keypad. •...
Page 325: Basic Menu
Operation Basic Menu DEVICE CHECK VOLUME ADJUSTMENT page II–326 page II–337 INPUT OUTPUT SIGNAL SURFACE POTENTIAL SIGNAL ERASER LAMP DRUM MOTOR FEED MOTOR TRACTOR MOTOR TONER DENSITY MOTOR COUNTER TRANSPORT UNIT SOLENOID CLUTCH DRUM TRANS. CUTTER FAN BLOWER DEV. WASTE T. CLR. LAMP ALARM H.V.P.S.
Page 326: Device Check Menu
Appendix D Device Check Menu Device Check Menu The DEVICE CHECK menu is composed of two sections: OUTPUT SIGNAL and INPUT SIGNAL. The OUTPUT SIGNAL section allows you to check the operation of output devices, including motors, solenoids, fans, lamps, and the high voltage power supply.
Page 327 Operation DEVICE CHECK OUTPUT INPUT SIGNAL SIGNAL TRANSPORT DRUM TRANS. DEV. WASTE ALARM SWITCH STACKER UNIT CUTTER T. CLR. NEAR END DRUM ENCODER TONER EMPTY COVER DIP SWITCH LEVEL SENS 2 BACK FEED ELV. (UP) TONER DENSITY ROTARY SWITCH ASSIST ARM POSI HIGH VOLTAGE SEPARATION ELV.
Page 328 Appendix D Device Check Menu DEVICE CHECK OUTPUT INPUT SIGNAL SIGNAL MOTOR SOLENOID LAMP H.V.P.S. STACKER COUNTER CLUTCH BLOWER DRUM FEED MAGROLL SLEEVE CUTTER DRUM COUNTER DRUM MOTOR FEED MOTOR MAGROLL MOTOR SLEEVE MOTOR CUTTER MOTOR DRUM COUNTER Press START Press START Press START Press START...
Page 329 Operation DEVICE CHECK OUTPUT INPUT SIGNAL SIGNAL MOTOR SOLENOID LAMP H.V.P.S. STACKER COUNTER CLUTCH BLOWER SEPARATION CLAW CUTTER PAPER OUT GATE FACE GATE TONER SUPPLY SEPARATION CLAW CUTTER SOLENOID PAPER OUT GATE FACE GATE SOLENOID TONER SUPPLY CLUTCH SOLENOID Press START Press START Press START Press START...
Page 330 Appendix D Device Check Menu DEVICE CHECK OUTPUT INPUT SIGNAL SIGNAL MOTOR SOLENOID LAMP H.V.P.S. STACKER COUNTER CLUTCH BLOWER HEAD COOLING HEAD BLOWER VACUUM FAN FUSER R. COOLING HEAD COOLING FAN HEAD BLOWER FAN VACUUM FAN FUSER COOLING FAN Press START Press START Press START Press START...
Page 331 Operation DEVICE CHECK OUTPUT INPUT SIGNAL SIGNAL MOTOR SOLENOID STACKER LAMP H.V.P.S. COUNTER CLUTCH BLOWER ERASER LIGHT ERASER HIGH PRE-HEAT FLASH FLASH LAMP ERASER LAMP LIGHT ERASER LAMP HIGH PRE-HEAT LAMP START S/W-7 FLASH Press START Press START Press START Press START ERASER LAMP LIGHT ERASER LAMP HIGH...
Page 332 Appendix D Device Check Menu DEVICE CHECK OUTPUT INPUT SIGNAL SIGNAL MOTOR SOLENOID STACKER LAMP H.V.P.S. COUNTER CLUTCH BLOWER DEV BIAS TRNS CHGR SEP CHGR CLNNG BIAS MAIN CHGR PRE CHGR DEVELOPING TRANSFER SEPARATION CLEANING PRE-CLEANING MAIN CHARGER BIAS CHARGER CHARGER BIAS CHARGER...
Page 333 Operation DEVICE CHECK OUTPUT INPUT SIGNAL SIGNAL MOTOR SOLENOID STACKER LAMP H.V.P.S. COUNTER CLUTCH BLOWER FEED MOTOR ELEVATOR UP ELEVATOR DOWN SWING GUIDE ASSIST ARM EXIT SOLENOID FEED MOTOR ELEVATOR UP ELEVATOR DOWN SWING GUIDE ASSIST ARM EXIT SOLENOID Press START Press START Press START Press START...
Page 334: Selecting A Mode/Item/Device
Appendix D Device Check Menu Selecting A Mode/Item/Device 1. To select a mode, scroll through the menus using the key. When the target mode appears at the extreme left of the message display, press the key. Example: DEVICE CHECK OUTPUT SIGNAL INPUT 2.
Page 335: Reading Device Status (Input Device Check)
Reading Device Status (Input Device Check) Reading Device Status (Input Device Check) Use the engine checker to read the device status. For example, to read the status of the PBFS (Paper Back Feed Sensor), the menu path is BASIC MENU, DEVICE CHECK, INPUT SIGNAL, TRANSPORT UNIT, BACK FEED, BACK FEED SENSOR.
Page 336 Appendix D Device Check Menu The following is an example of driving a device (the drum motor) and looking at the motor sensor while the motor is driving. BASIC MENU DEVICE CHECK DEVICE CHECK Press ↓ OUTPUT SIGNAL OUTPUT SIGNAL Press ↓...
Page 337: Volume Adjustment Menu
Driving/Stopping A Device (Output Device Check) Volume Adjustment Menu The volume adjustment menu allows you to adjust voltages and read the output for the items shown in Figure II–56. To select an adjustment item, scroll through the menus until the target item appears at the extreme left of the message display, and press the key.
Page 338: Surface Potential
Appendix D Volume Adjustment Menu Surface Potential Turn the high-voltage power supply on, measure the voltage and adjust the volume. The engine checker menu path is BASIC MENU, VOLUME ADJUSTMENT, SURFACE POTENTIAL. Sample message: SURF. POTENTIAL POTENTIAL = 000V Eraser Lamp Use the engine checker to drive the eraser lamp for high and normal light quantities, measure the voltage, and adjust the volume.
Page 339: Feed Motor
Feed Motor Feed Motor Use the engine checker to drive the feed motor, check how LEDs are lighting and adjust the volume. The menu path is BASIC MENU, VOLUME ADJUSTMENT, FEED MOTOR, HIGH, FEED MOTOR (HIGH), START/ STOP. Sample message: FEED MOTOR (HIGH) DRIVING Tractor Motor...
Page 340: Basic Operation Menu
Appendix D Basic Operation Menu Basic Operation Menu The basic operation menu, shown in Figure II–57, allows you to move fanfold and cut sheet paper through the printer. To select a paper type, scroll through the menus until the target item appears at the extreme left of the message display, and press the ↓...
Page 341: Cut Sheet Paper
Cut Sheet Paper Cut Sheet Paper Cut sheet paper is discharged faceup in the top cassette, and facedown in the bottom cassette. Use the engine checker to select and move cut sheet paper. The menu path is BASIC MENU, BASIC OPERATION, CUT SHEET, TOP (FACE UP), TOP (FACE UP OUT), START/STOP.
Page 342: Memory Operation Menu
(setting all values at once). NOTE: For NVRAM values, see the inspection sheet located inside the printer. If there is no inspection sheet, locate the serial number of the printer and contact Printronix Technical Support for the factory-set value. MEMORY...
Page 343: Reading And Changing Data
Reading And Changing Data Reading And Changing Data Use the engine checker to read and change memory operation data. When displaying a NVRAM value, the item name appears at the top of the message display, and the setting value at the bottom. A sample menu path is BASIC MENU, MEMORY OPERATION, FANFOLD PAPER XO.
Page 344 Appendix D Memory Operation Menu II–344...
Page 345: Clearing Service Level Messages
Index Cassette paper jams at back of, I–111 Abbreviations, interconnection diagram, II–176 paper size, I–59, II–125, II–245 About this manual, I–19 Cautions and dangers, I–19 Acronyms, interconnection diagram, II–176 Cleaning Adjustments charges, I–82 loading flash memory, I–231 cleaning unit, I–93 software upgrades, I–228, I–231 cut sheet option rollers, I–89 Auto-load fanfold paper command, theory, II–167...
Page 346 cover, I–239 Cut-sheet Paper Empty (Error 6F), I–167 power supply, I–356 Cut-sheet Paper Skew (Error 64), I–163 Cooling fan, controller, I–358 Cut-Sheet Path Open (Error 08), I–134 Corona power supply, I–319 Cut-sheet Pick Miss (Error 65), I–163 interface, II–231 Cutter Cover motor, I–284 behind stand, I–332...
Page 347 engine checker, II–338 Toner Density, II–339 MC board, I–207 Tractor Motor, II–339 peripheral equipment, I–260 Engine CPU Fail (Errors 38 through 47), I–156 cleaning unit, I–262 Engine, interconnection diagram, II–173 discharge lamp (PEL), I–261 Eraser lamp main charger (MCH), I–260 engine checker, II–338 precharger (PCH), I–260 MC board, I–208...
Page 348 18 - Drum Motor Fail (complete stop), I–146 Errors 19 - Surface Voltage Too High, I–147 cut sheet feeder unit, II–251 1A - Surface Voltage Too Low, I–149 power paper stacker, II–288 1B - Tractor Detent Fail, I–150 1E - Fuser Supply Fail, I–151 Face down paper out drive belt, I–309 1F - Fuser Failure, I–151 Face gate solenoid (FGSL), I–301...
Page 349 DC PROGRAM / NOT VALID, I–117 Fuser temperature, monitoring, theory, II–157 DRAM AT / ADDRESS xxxxxxxx, I–117 Fuser unit, I–266 FLASH / DID NOT PROGRAM, I–118 lamp duct filter, I–270 FLASH / NOT DETECTED, I–118 preheat lamp/flash lamp, I–267 FLASH TYPE / IS NOT SUPPORTED, temperature fuse, I–269 I–118 theory, II–122...
Page 350: Maintenance Schedules
Intervals, replacement current control circuit, MC board, I–211 consumables, I–70 varistor, I–304 service provider responsibility, I–71 Main Charger High Voltage Error (Error 78), I–167 user responsibility, I–70 Main unit, feed roller drive, theory, II–135 Maintaining print quality, I–67 Maintenance Jam detection sensors, I–101 log sheets, I–68 Jams, paper schedules, I–67...
Page 351 global memory adjust, I–104 Motor printer control, I–105 cutter, I–284 Message table, error messages, I–116 drum, I–285 Messages feed (FMT), I–289 CLEARING PROGRAM / FROM FLASH, I–117 feed encoders (FME 19/20), I–289 DIAGNOSTICS / PASSED, I–117 magroll (MRM), I–287 ERROR magroll, MC board, I–212 DC PROGRAM / NOT VALID, I–117 sleeve (SLM), I–287...
Page 352 output section, theory, II–124 photoemitting board, I–347 output, theory, II–129 photoreceptor board, I–348 parking, theory, II–130 Paper output section, paper jams near, I–108 sensors Paper path, face up or face down, paper empty, II–246 paper jams in, I–115 paper near-end, II–143 Paper size, cassette, I–59, II–125, II–245 paper output (EPS0), II–144 Paper stacker, II–263...
Page 353 stacker full sensor (SFS), II–283 Printer options stacker motor, II–315 cut sheet feeder unit, II–235 stacker motor encoder (SME), II–284 power paper stacker, II–263 swinger, II–277 Printing mechanisms, II–113 swinger belts, II–303 Printing operations, theory, II–162 swinger position sensor (SPS), II–285 Printing system descriptions, II–111 transfer unit paper sensor (PMS), II–280 Processing, images, II–112...
Page 354 Schedule stacker swinger position sensor (SPS), II–285 consumables replacement, user responsibility, stacker transfer unit paper sensor (PMS), I–70 II–280 replacement, service provider responsibility, theory, II–141 I–71 upper/lower paper empty sensor (PES1/PES2), Schedules, maintenance, I–69 II–246 Scuff Lever Open (Error 07), knob "C", I–134 upper/lower paper size sensor, II–244 SECURITY CODE / VIOLATION, I–122 Separator Charger High Voltage Error...
Page 355: Troubleshooting
power paper, I–55, II–263 Toner Density Too High (Error 2B), I–155 safety sensors, II–287 Toner Density Too Low (Error 2C), I–155 swinger position sensor, II–285 Toner Empty (Error 2D), I–154 transfer unit paper sensor, II–280 Toner Low (Error 2A), I–154 Stacker Comm.
Page 356: Transfer Assembly
Unit interface, II–221 Unpacking the printer, I–35 Upgrading software, I–228, I–231 User Maint option, service levels, I–68 Utility program, lasr2fls, I–228 Vacuum cleaners, recommended models, I–30 Vacuum fan (VAF) transfer assembly, I–276 Vacuum fan, MC board, I–212 Varistor main charger, I–304 transfer/transport unit, I–279 Voltage setting, power supply, I–60 WAITING FOR / PROGRAM DOWNLOAD, I–122...
Page 358 Nederland BV P.O. Box 163, Nieuweweg 283 NL-6600 Ad Wijchen The Netherlands Phone: (31) 24 6489489 Fax: (31) 24 6489499 Printronix Schweiz GmbH 42 Changi South Street 1 Changi South Industrial Estate Singapore 486763 Phone: (65) 6542-0110 Fax: (65) 6543-0220...

Printronix L5535 Maintenance Manual

Illustrated Parts Breakdown

Principles of Operation

B Optional Cut Sheet Feeder

D Engine Checker

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Summary of Contents for Printronix L5535

Table of Contents