Ricoh G176 Service Manual
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Ricoh G176 Service Manual

Ricoh G176 Service Manual

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G176/G177/G176L
SERVICE MANUAL
003037MIU

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Summary of Contents for Ricoh G176

  • Page 1 G176/G177/G176L SERVICE MANUAL 003037MIU...
  • Page 5 G176/G177/G176L SERVICE MANUAL 003037MIU...
  • Page 7 It is the reader's responsibility when discussing the information contained within this document to maintain a level of confidentiality that is in the best interest of Ricoh Corporation and its member companies. NO PART OF THIS DOCUMENT MAY BE REPRODUCED IN ANY FASHION AND DISTRIBUTED WITHOUT THE PRIOR PERMISSION OF RICOH CORPORATION.
  • Page 9 Ricoh Corporation. Users of this manual should be either service trained or certified by successfully completing a Ricoh Technical Training Program. Untrained uncertified users utilizing...
  • Page 11 LEGEND PRODUCT CODE COMPANY GESTETNER LANIER RICOH SAVIN G176 P7031n LP131n SP 4100N MLP31n G177 P7035n LP136n SP 4110N MLP36n G176L P7031nL LP131nL Aficio SP 4100NL MLP31nL DOCUMENTATION HISTORY REV. NO. DATE COMMENTS 03/2007 Original Printing 5/2008 G176L Addition...

  • Page 13: Table Of Contents

    G176/G177/G176L TABLE OF CONTENTS INSTALLATION 1. INSTALLATION ...............1-1 1.1 INSTALLATION REQUIREMENTS............1-1 1.1.1 ENVIRONMENT ................1-1 1.1.2 MACHINE LEVEL ................1-2 1.1.3 REQUIRED SPACE ..............1-2 1.1.4 POWER SUPPLY ................1-2 1.2 MACHINE INSTALLATION ..............1-3 1.3 DATA OVERWRITE SECURITY UNIT INSTALLATION .......1-4 1.3.1 INSTALLATION ................1-4 1.3.2 CHECKING AND COMPLETING THE INSTALLATION ....1-5...
  • Page 14 3.10 PRINTER CONTROLLER BOARD ...........3-23 3.11 ENGINE BOARD................3-24 3.12 MAIN MOTOR...................3-25 3.13 CLUTCHES..................3-26 3.14 PSU, HVPS..................3-27 3.15 COOLING FAN .................3-28 TROUBLESHOOTING 4. TROUBLESHOOTING .............4-1 4.1 SERVICE CALL CONDITIONS .............4-1 4.1.1 SUMMARY...................4-1 4.1.2 SC CODE DESCRIPTIONS............4-2 4.2 ERROR MESSAGES ................4-18 4.3 GENERAL TROUBLESHOOTING ............4-25 G176/G177/G176L...
  • Page 15 SP5-xxx: Mode ................5-14 SP7-xxx: Data Log ................5-56 SP8XXX: Data Log 2..............5-71 5.4 FIRMWARE UPDATE .................5-82 5.4.1 TYPE OF FIRMWARE ...............5-82 5.4.2 PRECAUTIONS .................5-82 Handling SD Cards................5-82 Upload/Download ................5-83 Network Connection ..............5-83 5.4.3 MACHINE FIRMWARE UPDATE ..........5-83 5.5 NVRAM DATA UPLOAD/DOWNLOAD..........5-85 G176/G177/G176L...
  • Page 16 LD Safety Mechanisms ..............6-9 6.3.3 CARTRIDGE OVERVIEW............6-10 6.3.4 DRUM CHARGE................6-10 6.3.5 DEVELOPMENT................6-11 Toner Supply and Development ............6-11 Toner Density Control ..............6-12 6.3.6 TONER END DETECTION ............6-13 Overview ..................6-13 Toner End Sensor .................6-13 Main Motor Rotation Count............6-14 Toner Overflow Prevention............6-14 Summary ..................6-15 G176/G177/G176L...
  • Page 17 SPECIFICATIONS 7. SPECIFICATIONS..............7-1 7.1 BASIC SPECIFICATIONS ..............7-1 7.1.1 GENERAL SPECIFICATIONS .............7-1 7.1.2 EXTERNAL OPTIONS ..............7-4 7.1.3 PAPER SIZES ................7-5 Plain Paper..................7-5 Envelope ..................7-6 Custom ....................7-6 Envelopes..................7-7 7.1.4 OPERATING ENVIRONMENT ............7-8 7.1.5 OPERATION PANEL LED SPECIFICATIONS ......7-10 7.2 CONTROLLER SPECIFICATIONS.............7-11 G176/G177/G176L...
  • Page 18 Optional Utilities ................7-22 7.3 MACHINE CONFIGURATION ............7-23 7.3.1 SYSTEM COMPONENTS............7-23 G893 DUPLEX UNIT AD1000 SEE SECTION G893 FOR DETAILED TABLE OF CONTENTS G894 PAPER FEED UNIT TK1030 & G362 ENVELOPE FEEDER TYPE 400 SEE SECTION G894/G362 FOR DETAILED TABLE OF CONTENTS G176/G177/G176L...

  • Page 19: Installation

    INSTALLATION PREVENTIVE MAINTENANCE G894 PAPER FEED UNIT TK1030/G362 ENVELOPE FEEDER TYPE 400 REPLACEMENT AND ADJUSTMENT TROUBLESHOOTING SERVICE TABLES G893 DUPLEX UNIT AD1000 DETAILED DESCRIPTIONS SPECIFICATIONS...
  • Page 21 Read This First Safety, Conventions, Trademarks Safety PREVENTION OF PHYSICAL INJURY Before disassembling or assembling parts of the printer and peripherals, make sure that the printer power cord is unplugged. The wall outlet should be near the printer and easily accessible. Note that some components of the printer and the paper tray unit are supplied with electrical voltage even if the main power switch is turned off.

  • Page 22: Laser Safety

    The controller board in this machine contains a lithium battery. The danger of explosion exists if a battery of this type is incorrectly replaced. Replace only with the same or an equivalent type of battery recommended by the manufacturer. Dispose of batteries in accordance with the manufacturer's instructions and local laws and regulations.
  • Page 23 Conventions and Trademarks Conventions Symbol What it means Refer to section number ☛ See Core Tech Manual for details " Screw Connector E-ring C-ring The following notations are used in text to describe the direction of paper feed: lengthwise and sideways. The annotations “SEF” and “LEF” denote “Short Edge Feed” and “Long Edge Feed".

  • Page 25: Installation

    INSTALLATION SECTION 1 INSTALLATION REVISION HISTORY Page Date Added/Updated/New None...

  • Page 27: Installation Requirements

    Do not install the machine at locations over 2,500 m (8,125 ft.) above sea level. Put the machine on a strong and level base. Inclination on any side should not exceed 5 mm. Do not put the machine where it may be subjected to strong vibrations. G176/G177/G176L...

  • Page 28: Machine Level

    Make sure the plug is firmly inserted in the outlet. Avoid multi-wiring. Be sure to ground the machine. NA: 120 volts, 60 Hz Input voltage level EU: 220-240 volts, 50 Hz/60 Hz Permitted voltage Fluctuation: ±10 % Never place anything on the power cord. G176/G177/G176L...

  • Page 29: Machine Installation

    Data Storage Card Type A G874 Data Overwrite Security Unit Type E G874 See next section of this manual. For more about drivers and other software, see Section 1 of the Software Drivers Guide. *1 These units cannot be installed at the same time. G176/G177/G176L...

  • Page 30: Data Overwrite Security Unit Installation

    Turn the main power switch on. Enter the SP mode and do SP5878 and push [#Enter] to enable the DOS application. 10. Go out of the SP mode, turn the operation switch off, then turn the main power switch off. G176/G177/G176L...

  • Page 31: Checking And Completing The Installation

    Push [ ] or [ ] to display "Maintenance" then push [#Enter]. Push [ ] or [ ] to display "Memory Erase" and "Erase All Mem." If you see "Memory Erase" and "Erase All Mem." in the selections, then the DOS application has been enabled and is operating. G176/G177/G176L...

  • Page 33: Preventive Maintenance

    PREVENTIVE MAINTENANCE SECTION 2 PREVENTIVE MAINTENANCE REVISION HISTORY Page Date Added/Updated/New None...

  • Page 35: User Maintenance

    After the user replaces the fusing unit in the maintenance kit, the machine automatically resets the PM counter. Item Quantity Remarks Fusing unit Transfer roller Paper feed roller For standard and optional tray(s) Friction pad For standard and optional tray(s) G176/G177/G176L...

  • Page 36: Service Maintenance

    Registration Roller Clean with water Bottom Plate Pad Clean with water Around the Drum Transfer Roller Fusing Unit and Paper Exit Hot Roller Pressure Roller Hot Roller Strippers Clean with alcohol if Fusing Thermistor necessary. Bushings - Hot Roller G176/G177/G176L...
  • Page 37 Fusing Entrance and Exit Guide Clean with water or 1 each Plates alcohol Fusing Unit Ass'y 110V/220 V Paper Tray Unit Quantity NOTE Paper Feed Roller Clean with water Friction Pad Clean with water Bottom Plate Pad Clean with water G176/G177/G176L...

  • Page 39: Replacement And Adjustment

    REPLACEMENT AND ADJUSTMENT SECTION 3 REPLACEMENT AND ADJUSTMENT REVISION HISTORY Page Date Added/Updated/New None...

  • Page 41: General

    Do not adjust the Laser Synchronization detector on the LD unit, as these are permanently adjusted at the factory. If the position of the Laser Synchronization detector has changed from the factory set position, SC 322 will be shown. G176/G177/G176L...

  • Page 42: Releasing Plastic Latches

    Many of the parts are held in place with plastic latches. The latches break easily, so release them carefully. To release a latch, press the hook end of the latch away from the part to which it is latched. G176/G177/G176L...

  • Page 43: After Servicing The Machine

    Make sure the interlock switch is functioning. Do not leave unused solder or parts inside the machine. Do not leave any tools inside the machine. Make sure all wires are properly connected and routed. Make sure wires are not jammed between parts of the machine. G176/G177/G176L...

  • Page 44: Special Tools

    Remarks B6455010 SD Card Common B6456700 PCMCIA Card Adapter Common B6456800 USB Reader/Writer Common VSSM9000 Digital Multimeter – FLUKE 187 Common A0069104 Scanner Positioning Pin (4pcs/set) Common Ricoh System Information Tool (Support Tool Ver. 2) Basic version Mail version G176/G177/G176L...

  • Page 45: Covers

    [A] Open the front cover. [B] Open the rear cover, then remove the AIO. [C] Open the exit guide plate. [D] Operation panel (2 hooks) [E] Upper cover ( x4, Remove the exit guide plate after you have removed the upper cover. G176/G177/G176L...

  • Page 46: By-Pass Tray Unit

    To remove the left or right cover, separate the machine from the optional paper tray unit first. [A] Left cover ( x 2) [B] Front cover ( [C] Right cover (hooks x3, fan cover x1) Pull out the standard paper tray before removing the front cover. G176/G177/G176L...

  • Page 47: Laser Unit

    Laser beams can seriously damage your eyes. 3.4.1 CAUTION DECAL LOCATIONS 3.4.2 POLYGON MIRROR MOTOR Turn off the main switch and unplug the machine before attempting any of the procedures in this section. Laser beams can seriously damage your eyes. G176/G177/G176L...

  • Page 48: Laser Synchronization Detector

    4, x 1) Never touch the surface of the mirror with bare hands. 3.4.3 LASER SYNCHRONIZATION DETECTOR Upper cover (See "Upper Cover") By-pass tray unit (See "Bypass Tray Unit") Exterior covers (See "Exterior Covers") [A] Laser synchronization detector ( G176/G177/G176L...

  • Page 49: Laser Unit

    [B] Laser unit ( x 4, 1 flat cable, x 2) When reinstalling the laser unit. Use the scanner positioning pins (P/N: A0069104) to reinstall the unit. Set the positioning pins as shown above. Then secure the laser unit. G176/G177/G176L...

  • Page 50: Laser Diode Unit

    Print out the following test patterns – cross-stitch pattern and two-dot argyle pattern. Select the test pattern with SP 2902. After selecting a pattern, the display automatically goes to SP 5902. Use SP 5902-1 to print one test pattern. After completing the adjustment, reset SP 2902 to ‘no specified’. G176/G177/G176L 3-10...
  • Page 51 Adjust the LD unit holder position: Tighten or loosen the screw [C] (see the previous page) until the printout appears as follows. Cross-stitch pattern: The thin lines are of uniform thickness (no striping effect should appear on the printout). Grid pattern: The diagonal lines appear clearly and are of normal density. 3-11 G176/G177/G176L...
  • Page 52 Laser Unit G176/G177/G176L 3-12...

  • Page 53: Transfer Roller

    Transfer Roller 3.5 TRANSFER ROLLER Remove the AIO. [A] Transfer roller Do not touch the transfer roller surface. 3-13 G176/G177/G176L...

  • Page 54: Toner End Sensor

    Toner End Sensor 3.6 TONER END SENSOR Remove the AIO. [A] Toner end sensor (hooks x4, x 1) G176/G177/G176L 3-14...

  • Page 55: Fusing

    3.7 FUSING Allow time for the unit to cool before doing the following procedure. 3.7.1 FUSING UNIT [A] Rear cover [B] Fusing unit hooks [C] (x2). Lift both hooks before attempting to remove the fusing unit from the machine. 3-15 G176/G177/G176L...

  • Page 56: Hot Roller And Fusing Lamp

    Remove both springs before taking apart the fusing unit assembly. The reason for this is to relieve pressure on the unit. When reinstalling the fusing unit assembly, install both springs last. The reason for this is to reset the springs back to their default position. G176/G177/G176L 3-16...
  • Page 57 Use a small screwdriver to separate the guide plate from the unit. Before installing the new hot roller, peel off 3 cm (1 inch) from both ends of the protective sheet on the new hot roller. Be sure to remove the remaining paper before starting the machine. 3-17 G176/G177/G176L...

  • Page 58: Pressure Roller

    Hot roller and fusing lamp (See "Hot Roller and Fusing Lamp") [A] Wire cover ( x 1) [B] Grounding plate ( x 2, 1 wire) [C] Fusing unit connector ( x 6, x1, 2 hooks) [D] Thermistor ( x 1, [E] Thermostat ( x 1) G176/G177/G176L 3-18...

  • Page 59: Hot Roller Strippers

    Two extra hot roller strippers A , B are installed for a better grip on narrow paper. This prevents paper from curling around the hot roller. When installing the extra hot roller strippers, insert them in the two slots using a small pair of pliers until they snap into place. 3-19 G176/G177/G176L...

  • Page 60: Paper Feed

    Paper Feed 3.8 PAPER FEED 3.8.1 PAPER FEED ROLLER Pull out the paper tray before removing the paper feed roller. [A] Paper feed roller G176/G177/G176L 3-20...

  • Page 61: Friction Pad

    When reinstalling the friction pad follow this order Replace the spring. Insert the right side of the friction pad first followed by the left side. Gently push the friction pad down into the slot and then pull forward very slightly. 3-21 G176/G177/G176L...

  • Page 62: By-Pass Tray

    Set the paper guide on the bushing. Install the right part of the actuator on the paper guide. Install the left part of the actuator in the machine. Install the paper guide. Check that the actuator moves smoothly and swings freely. G176/G177/G176L 3-22...

  • Page 63: Printer Controller Board

    Remove the NVRAM from the old printer controller board and insert it on the new board. The screws on the printer controller board are hand screws. Gently turn these screws when removing the printer control board. Pull on the handle to remove the printer controller board from the machine. 3-23 G176/G177/G176L...

  • Page 64: Engine Board

    [A] Bracket ( x7, 1 grounding wire) Be careful not to damage the flat cable. [B] Clip [C] Engine board ( x4, all connectors) Remove the NVRAM [D] from the old engine board and insert it on the new board. G176/G177/G176L 3-24...

  • Page 65: Main Motor

    Main Motor 3.12 MAIN MOTOR Left cover (See "Exterior Covers") [A] Main motor ( x 1) 3-25 G176/G177/G176L...

  • Page 66: Clutches

    1) with clutch bracket , holder [B] Stopper ( x 1) [C] Relay clutch ( x 1, x 1) [D] Paper feed clutch ( x 1) Main motor (See "Main Motor") [E] Registration clutch ( x 1, x 1) G176/G177/G176L 3-26...

  • Page 67: Psu, Hvps

    Fusing unit. See "Fusing Unit" [A] PSU cover ( x 2) [B] PSU assembly ( x 7, all connectors) [C] High voltage supply board ( x 4) [D] 230-volt machine only: Choke coil ( x 1) [E] PSU ( x 5) 3-27 G176/G177/G176L...

  • Page 68: Cooling Fan

    Cooling Fan 3.15 COOLING FAN Right cover (See "Exterior Covers") [A] Cooling fan ( x 2, The cooling fan must be reinstalled in its original position. Do not reinstall the cooling fan opposite to the original position. G176/G177/G176L 3-28...

  • Page 69: Troubleshooting

    TROUBLESHOOTING SECTION 4 TROUBLESHOOTING (SC CODES) REVISION HISTORY Page Date Added/Updated/New 07/31/2009 SC998 6 ~ 17 10/27/2009 Added & deleted SC’s...

  • Page 71: Service Call Conditions

    To reset these SCs, turn the operation switch or Set the operation switch or the main main power switch off and on. power switch to “off” then to “on”. These SCs are shown again if the error occurs again. G176/G177/G176L...

  • Page 72: Sc Code Descriptions

    Once the polygon motor was detected Polygon motor cable in the lock state after started to rotate, within 0.6 sec. it entered the unlock state.. -or- After the polygon motor switched off, it did not enter unlock state within 20 sec. G176/G177/G176L...
  • Page 73 A development bias leak signal was Defective cartridge connection detected for 200 ms. Main motor error Main motor defective A main motor lock signal was not Mechanical overload on the detected within 700 ms after the main drive mechanism motor started to rotate. G176/G177/G176L...
  • Page 74 Fusing thermistor defective within 60 sec. after the main motor Power supply board defective switched off. -or- The fusing temperature was detected higher than 235 C for longer than 200 ms at any other time. G176/G177/G176L...
  • Page 75 Three consecutive paper lag jams (paper failed to arrive) were detected in Fusing unit installed the fusing unit. -or- incorrectly During printing of the 1st side during Fusing unit defective duplexing, the paper did not arrive at the duplex entrance sensor three times. G176/G177/G176L...
  • Page 76 The engine board detected an unknown device on the I2C I/F bus (internal bus on the engine control board). Engine board defective The engine board detected an I2C I/F bus error. The number of devices connected to the I2C bus exceeded 12. G176/G177/G176L...
  • Page 77 Engine board and controller Check the type of engine board mismatch detected. and controller board. 1. Replace the engine board. 2. Replace the controller board. System timeout error ⇒ • Defective controller • Replace the controller if it occurs frequently. G176/G177/G176L...
  • Page 78 For more details about this SC code error, execute SP5990 to print an SMC report so you can read the error code. The error code is not displayed on the operation panel. G176/G177/G176L...
  • Page 79 NVRAM backup battery exhausted NVRAM socket damaged NVRAM socket damaged Self-diagnostic Error: Make sure NVRAM is seated NVRAM/Optional NVRAM correctly in its socket The NVRAM or optional NVRAM Replace the NVRAM on the returned an error during the controller board self-diagnostic test. G176/G177/G176L...
  • Page 80 Controller board defective Wireless LAN Error 1 During machine start-up, the machine can get access to the board that holds the Wireless LAN card missing wireless LAN, but not to the wireless LAN (was removed) card (802.11b or Bluetooth). G176/G177/G176L 4-10...
  • Page 81 HDD startup error at main power on HDD is connected but a driver HDD is not initialized error is detected. Level data is corrupted The driver does not respond with HDD is defective the status of the HDD within 30 s. 4-11 G176/G177/G176L...
  • Page 82 CRC error query. Data transfer HDD defective did not execute normally while data was being written to the HDD. HDD access error HDD responded to an error during operation for HDD defective. a condition other than those for SC863, 864. G176/G177/G176L 4-12...
  • Page 83 SD card error 3: SC card access SD card not inserted correctly An error occurred SD card defective while an SD card was Controller board defective used. Note: If you want to try to reformat the SC card, use SD Formatter Ver 1.1. 4-13 G176/G177/G176L...
  • Page 84 HDD and initialize with machine was turned on, or power SP5832. was turned off while the machine Note: If you turn off the machine while used the HDD. the HDD is being accessed, this can damage the HDD. G176/G177/G176L 4-14...
  • Page 85 SD card not installed The 'all delete' function cannot 1. Replace the NVRAM and then install be executed but the Data the new SD card. Overwrite Security Unit is 2. Check and reinstall the SD card. installed and activated. 4-15 G176/G177/G176L...
  • Page 86 A necessary font is not The SD card data is corrupted. found in the SD card. Check that the SD card has the correct data. Software error 1 The software performs an unexpected function and the Software defective, re-boot*1 program cannot continue. G176/G177/G176L 4-16...
  • Page 87 Application start error Defective controller Software problem 1. Check if the RAM-DIMM and ROM-DIMM are correctly connected. No applications start within 60 2. Reinstall the controller system seconds after the power is turned on. firmware. 3. Replace the controller board. 4-17 G176/G177/G176L...

  • Page 88: Error Messages

    Load the tray with the correct paper Change Setting Change the paper size using the dial or the Tray #/ Paper Size:, Paper Type: special paper size setting menu on the operation panel. Push [Form Feed] Cancel the print job. G176/G177/G176L 4-18...
  • Page 89 Machine detected an optional RAM error. Hardware Problem, Option RAM Replace optional RAM. Machine failed self-diagnostic test due to a loop back error. Hardware Problem, Parallel I/F If parallel I/F is in use, replace the IEEE1284 interface board. 4-19 G176/G177/G176L...
  • Page 90 Load Correct Size Paper/ Paper Use the dial to select the correct paper size. Size:, Paper Type: -or- Press [Form Feed]. The specified tray is out of paper. Load Paper: Tray# or Form Feed Load paper in the specified tray. G176/G177/G176L 4-20...
  • Page 91 1) Proxy address port No. is invalid, 2) proxy is not active, 3) invalid center URL is set, 4) center is not Proxy setting or connection error active, 5) proxy is not set. Check all proxy settings. 4-21 G176/G177/G176L...
  • Page 92 Remove paper from the input paper tray. Remove Misfeed Paper Tray/ Pull Reload paper. out Tray Open and close front cover to extinguish message. The standard output tray is full. Remove Paper Standard Tray Remove paper from output tray. G176/G177/G176L 4-22...
  • Page 93 Load the indicated tray with the correct paper. Reset the Job or Form Feed/ Or, change the paper size using tray dial or Paper Size:, Paper Type: operation panel. Or, push [Form Feed] to print on current paper. Or, cancel job. 4-23 G176/G177/G176L...
  • Page 94 SSID not entered Enter correct ID Supply order Call for supply order has failed. failed. Confirm the setting of @Remote. The printer has failed to restart the update. Update Mode Err, Power Off On Turn the machine off/on. G176/G177/G176L 4-24...

  • Page 95: General Troubleshooting

    Put a positioning pin in one of the holes Loosen four screws and move the laser unit. Tighten the laser unit. Print the trimming area pattern to check the image. If it is still the same, repeat steps 3 to 5. 4-25 G176/G177/G176L...

  • Page 96: Electrical Defects

    The Paper End indicator lights even if Open paper is placed in the 1st paper tray. Remaining paper 6-A5 The Paper End indicator does not light sensor 1 Shorted even if there is no paper in the 1st paper tray. G176/G177/G176L 4-26...
  • Page 97 Open cover or paper exit cover is opened. Rear Cover 18-3 Safety The Rear Cover Open message is displayed even if the rear Shorted cover or paper exit cover is closed. 4-27 G176/G177/G176L...

  • Page 98: Fuses

    Current Voltage 15.0 A AC 100V/120V 5.0 A AC 100V/120V 4.0 A DC 5V 4.0 A DC 5V Europe Fuse Current Voltage 6.3 A AC 220V-240V 3.15 A AC 220V-240V 4.0 A DC 5V 4.0 A DC 5V G176/G177/G176L 4-28...

  • Page 99: Skew Adjustment

    Interval Width (approx.) Check: 94 mm OPC Drum (diameter 30 mm) 50 mm Transfer Roller (diameter 16 mm) 105 mm Fusing Roller (diameter 33 mm) 100 mm Pressure Roller(diameter 32 mm) 4-29 G176/G177/G176L...

  • Page 100: Miscellaneous Problems

    (High usage can foul the actuator and type. with paper dust.) Replace registration sensor Replace registration sensor actuator HDD unit not recognized The HDD unit of another machine cannot be used. Replace the HDD unit with the new HDD. G176/G177/G176L 4-30...

  • Page 101: Service Tables

    SERVICE TABLES SECTION 5 SERVICE TABLES (SP MODES) REVISION HISTORY Page Date Added/Updated/New 01/02/2008 SP7931-005 12/12/2008 Removed SP8781...

  • Page 103: Service Program Mode

    Use this method to enter the SP mode with the machine on. With the machine on, press [ ] [ ] together and hold them down for about 5 sec. Press [Enter]. "1. Service Menu" appears on the screen. G176/G177/G176L...

  • Page 104: Setting A Service Program

    Select the required setting using the “Up/Down arrow” keys, Press the [Enter] key. The previous value remains if the [Enter] key is not pressed. Exiting Service Mode Select “3. End” from the service mode main menu, then press the “Enter” key. G176/G177/G176L...

  • Page 105: Printer Controller Service Mode

    [PDF]: Orientation Automatically chooses page orientations of Auto Detect PDF jobs (Landscape or Portrait) based on Enabled Disabled Function the content. • To access Orientation Auto Detect, update the Printer firmware to v1.09 or later. G176/G177/G176L...

  • Page 106: Printer Engine Service Mode

    ] to select the settings (plus or minus). The specification is 4±2 mm 1001 001 Bypass Tray Plain 1001 002 Bypass Tray Thick 1001 003 Main Tray Plain [-40 to +40/0/1] 1001 004 Main Tray Thick 1001 005 Optional Tray 1001 006 Duplex G176/G177/G176L...
  • Page 107 Duplex Tray [–8 mm to+8 mm/0/2 mm step] Fusing control Normal, Phase control Use phase control if the room lights flicker when the fusing lamp starts. 1104 Off: Normal On: Phase Control Defaults: NA Off (Normal), EU On (Phase Control) G176/G177/G176L...
  • Page 108 "000" indicates all normal. A "1" indicates a problem at the component designated by its position in the array. 1901 001 Summary What It Means If "1" Appears Bank problem (optional tray) Bin problem (Ignore, not used for this machine) Duplexer problem G176/G177/G176L...
  • Page 109 If SP1901 001 indicates a problem by displaying a "1" at the 3rd bit, do this SP to show more details What It Means Normal 1901 004 Duplex Serial signal failure DPXSET did not go LOW Duplexer not connected G176/G177/G176L...
  • Page 110 The machine ignores the fusing temperature set for SP1105. When the machine is powered on or recovers from the low power mode 1911 the machine requires about 20 sec. to warm up (this is longer than normal). [0 to 1/0/1] 0: Normal 1: Curl Control G176/G177/G176L...
  • Page 111 Note: Switching the machine off/on does not reset this jam counter. The counter is reset after the cause of the jam has been removed and a sheet of paper successfully passes the fusing exit sensor. [0~1/0/1] 0:OFF 1:ON G176/G177/G176L...

  • Page 112: Sp2-Xxx: Drum

    Adjusts the number of prints the machine can make after it detects toner 2213 near-end. [50 to 200/200/50 sheets/step] Transfer Curr Transfer Current 2301 Adjusts the correction current applied to the transfer roller. [-2 to +4/0/2 mu A/step] G176/G177/G176L 5-10...
  • Page 113 Thermistor Adjustment If this is “Yes”, the machine automatically adjusts the charge roller voltage 2910 and transfer current in response to the temperature in the machine. Yes/No Waste Toner Cnt Used Toner Count 2980 Displays the waste toner count. 5-11 G176/G177/G176L...

  • Page 114: Sp3-Xxx: Process

    Set this to yes to prevent the following: Grey banding parallel to the paper feed direction Cleaning blade flipping due to friction between blade and drum Noise due to friction between blade and drum G176/G177/G176L 5-12...
  • Page 115 SP to 1. But then, there is no toner end detection, and the user must watch the print quality and change the AIO when prints become too pale. [0 to 1/0/1] 0: Printing stops when toner end is detected 1: Printing can continue even after toner end is detected 5-13 G176/G177/G176L...

  • Page 116: Sp5-Xxx: Mode

    Determines whether a non-standard paper size can be input for the universal cassette trays (Tray 2, Tray 3) [0 to 1/0/1] 5112 0: No 1: Yes. If “1” is selected, the customer will be able to input a non-standard paper size using the UP mode. G176/G177/G176L 5-14...
  • Page 117 The number of the week for the day selected at the 3rd digit. If “0” is selected for “Sunday”, for example, and the selected Sunday is the start of the 2nd week, then input a “2” for this digit. 5th, 6th The time when the change occurs (24-hour as hex code). 5-15 G176/G177/G176L...
  • Page 118 1 to 9999: Alarm goes off when Value (1 to 9999) ≥ PM counter Jam Alarm Sets the alarm to sound for the specified jam level (document misfeeds are not included). [0 to 3/3/1 step] 5504 0: Zero (Off) 1: Low (2.5K jams) 2: Medium (3K jams) 3: High (6K jams) G176/G177/G176L 5-16...
  • Page 119 5507 132 Interval: A3 referenced paper sizes. DFU [00250 to 10000/1000/1 Step] 5507 133 Interval: A4 5507 134 Interval: A5 5507 141 Interval: B4 5507 142 Interval: B5 5507 160 Interval: DLT 5507 164 Interval: LG 5-17 G176/G177/G176L...
  • Page 120 (MCS: Memory Control Service) Initializes the printer defaults, programs registered, 5801 008 the printer SP bit switches, and the printer CSS counter. Deletes the Netfile (NFA) management files and 5801 010 WebService thumbnails, and initializes the Job login ID. G176/G177/G176L 5-18...
  • Page 121 LCS Setting Initializes information in non-volatile RAM. Free Run The machine performs a free run. Press [#Enter] to start. 5802 Press [#Enter] to stop. Please note that the machine will not stop immediately after the [#Enter] key is pressed. 5-19 G176/G177/G176L...
  • Page 122 Dplx Turn Sens Duplex Inverter Sensor 5803 019 Dplx Ent Sens Duplex Entrance Sensor 5803 020 Dplx Exit Sens Duplex Exit Sensor 5803 021 Mlt PaperEnd Bypass paper sensor 5803 022 Tray1 PaperEnd Paper end sensor, Standard Tray G176/G177/G176L 5-20...
  • Page 123 5804 002 Middle CL Relay Clutch 5804 003 Regist CL Registration Clutch 5804 005 No1 CL Paper Feed Clutch 5804 006 Multi SOL Bypass Feed Clutch 5804 011 Fan High Exhaust fan 5804 012 Fan Low Exhaust fan 5-21 G176/G177/G176L...
  • Page 124 Developer Bias 5804 049 Transfer Plus Transfer Plus 5804 050 Transfer minus Transfer minus Fusing Err Clr 5810 Resets an SC code for a fusing unit error. After using this SP mode, turn the main switch off and on. G176/G177/G176L 5-22...
  • Page 125 Performs the CE Call at the start or end of the service. [0 or 1 / 0 / 1 /step] 5816 002 0: Start of the service 1: End of the service NOTE: This SP is activated only when SP 5816-001 is set to “2”. 5-23 G176/G177/G176L...
  • Page 126 Enables/disables access via port 80 to the SOAP method. 5816 011 [0 or 1 / 0 / – ] 0: Disabled 1: Enabled 5816 012 @Remote Service 1 Enables/disables @Remote service. [0 or 1 / 1 / – ] 0: Disabled, 1: Enabled G176/G177/G176L 5-24...
  • Page 127 The address is necessary to set 5816 063 up embedded RCG-N. Note: The address display is limited to 128 characters. Characters beyond the 128 character are ignored. This address is customer information and is not printed in the SMC report. 5-25 G176/G177/G176L...
  • Page 128 The certification update failed, and the GW URL is being notified of the failed update. The period of the certification has expired and new request for an update is being sent to the GW URL. G176/G177/G176L 5-26...
  • Page 129 Normal. There is no request for certification update in progress. 5816 068 Request for certification update in progress. The current certification has expired. An SSL error notification has been issued. Issued after the certification has expired. 5-27 G176/G177/G176L...
  • Page 130 5816 086 Firmware Size the firmware data files during the firmware update execution. Displays the macro version of the @Remote 5816 087 CERT: Macro Ver. certification. Displays the PAC version of the @Remote 5816 088 CERT: PAC Ver. certification. G176/G177/G176L 5-28...
  • Page 131 CERT: Valid End current @Remote certification is enabled. Manual Polling 25816 200 Executes manual polling. Cumin periodically polls the @Remote Gateway by HTTPS. This is called "center polling". Use this SP at any time to poll the @Remote supply center. 5-29 G176/G177/G176L...
  • Page 132 1: Inquiry number error 2: Registration in progress 5816 204 3: Proxy error (proxy enabled) 4: Proxy error (proxy disabled) 5: Proxy error (Illegal user name or password) 6: Communication error 7: Certification update error 8: Other error 9: Inquiry executing G176/G177/G176L 5-30...
  • Page 133 Chat parameter error Illegal Modem -11002 Chat execution error 5816 208 Parameter -11003 Unexpected error Inquiry, registration attempted without -12002 acquiring device status. Operation Error, Attempted registration without execution Incorrect Setting -12003 of an inquiry and no previous registration. 5-31 G176/G177/G176L...
  • Page 134 Note: The proxy number, user name, and password comprise proprietary customer information required by the service technician to do the necessary settings for Cumin-N. To prevent unauthorized access this information, these SP settings do not appear in the SMC report. G176/G177/G176L 5-32...
  • Page 135 While using this SP mode, always keep the front cover open. This prevents a software module accessing the NVRAM during the upload. NVRAMDownload 5825 Downloads the content of a flash memory card to the NVRAM on the control board. 5-33 G176/G177/G176L...
  • Page 136 DHCP. For 5828 021 ActIPv4Add example, if the the setting of the the IPv4 address is "0C0A80001h " this is displayed as "192.169.000.001". 5828 045 Bi Direct Centro Enables and disables the Centro communication. G176/G177/G176L 5-34...
  • Page 137 BMLinks (Japan Only) 5828 069 JobSpool Protocl FTP (Not Used) DIPRINT Reserved (Not Used) Reserved (Not Used) Disables or enables Telnet operation. If this SP is disabled, the Telnet port is closed. 5828 090 TELNET [0~1/1] 0: Disable 1: Enable 5-35 G176/G177/G176L...
  • Page 138 These notations can be abbreviated. See "Note: IPV6 Addresses " below this table. Enables or disables the IPv6 Stateless Auto setting on the IPv6 Statelss 5828 161 Ethernet or wireless LAN (802.11b). Auto 0: Off, 1: On G176/G177/G176L 5-36...
  • Page 139 (only the last null set before "340e" is abbreviated as "::") HDD Init. 5832 Initializes the hard disk and clears all data. Use this only if there is a hard disk error. Prog Checksum 5837 Displays the checksum for the engine firmware. 5-37 G176/G177/G176L...
  • Page 140 System & other groups (LSB) Capture related This is a debugging tool. It sets 5842 Certification related the debugging output mode of each Net File process. Address book related Bit SW 0011 1111 Machine management related Output related (printing, delivery) Repository related G176/G177/G176L 5-38...
  • Page 141 Transfer Rate Sets the speed for USB data transmission. [Full Speed or Auto Change] Vendor ID 002 Sets the vendor ID: Initial Setting: 0x05A Ricoh Company [0x0000 to 0xFFFF/1] (DFU) Product ID Sets the product ID. [0x0000 to 0xFFFF/1] (DFU) Device Release No.
  • Page 142 5846 UCS Setting AddB Media Displays the location of the address book currently in use. 0: Not specified 5846 043 1: SD Card Slot 1 2: SD Card Slot 2 20: HDD 30: None G176/G177/G176L 5-40...
  • Page 143 Clears all of the address information from the local address book of a machine managed with UCS. Init All Dir Clears everything (including users codes) in the directory information 5846 050 managed by UCS. However, the accounts and passwords of the system administrators are not deleted. 5-41 G176/G177/G176L...
  • Page 144 5846 062 [0 to 32/1] Note: This SP does not normally require adjustment. This SP is enabled only after the system administrator has set up a group password policy to control access to the address book. G176/G177/G176L 5-42...
  • Page 145 5846 065 [0to32/1] Note: This SP does not normally require adjustment. It is enabled only after the system administrator has set up a group password policy to control access to the address book. 5-43 G176/G177/G176L...
  • Page 146 Note: These SP codes are for display StartTime DFU only; they cannot be changed. 5848 215 [0 to 0xFFFFFFFF/0/1] IntervalTime DFU 5848 216 [1 to 100/1/1] Timing DFU [0 to 2/0/1] 5848 217 0: Transmission off 1: Transmission 1 by 1 2: Periodic transmission G176/G177/G176L 5-44...
  • Page 147 When set to “1” allows reception of firmware data via the local port (IEEE 1284) 5856 during a remote ROM update. This setting is reset to zero after the machine is cycled off and on. [0~1 / 0 / 1] 0: Not allowed 1: Allowed 5-45 G176/G177/G176L...
  • Page 148 This SP copies the log on an SD card (the file that contains the information written directly from shared memory) to a log specified by key number. Make SD LogFile 5857 017 This SP creates a 4 MB file to store a log on an SD card. G176/G177/G176L 5-46...
  • Page 149 5859 005 Key 5 files for functions that use common memory on the controller board. 5859 006 Key 6 [-9999999 to 9999999/0/1] 5859 007 Key 7 5859 008 Key 8 5859 009 Key 9 5859 010 Key 10 5-47 G176/G177/G176L...
  • Page 150 POP to SMTP Wait POP authentication and connection with SMTP. Communication stops if this time is exceeded. [0-3000/300] This SP specifies POP3 protocol or switches off receiving. 0: No receiving 5860 009 Rcv Protocol 1: POP3 2: IMAP4 3: SMTP G176/G177/G176L 5-48...
  • Page 151 This SP setting determines whether received mail is stored on the server. 0: Received mail not stored 5860 019 Mail Keep Setting 1: All received mail stored 2: Stores only mail that generated errors during receiving 5-49 G176/G177/G176L...
  • Page 152 SP to set the SMTP certification method directly. However, this 5860 025 SP can be used only after SP5860 003 has been set to "1" (On). Bit0: LOGIN Bit1: PLAIN Bit2: CRAM_MD5 Bit3: DIGEST_MD5 Bit4 to Bit 7: Not Used G176/G177/G176L 5-50...
  • Page 153 Even if @Remote is not connected, these settings are used for Web validation, so at least SP5870 003 must be enabled. 5870 001 Writing Writes the authentication data (used for NRS) in the memory. 5870 003 Initialize Initializes the authentication data in the memory. 5-51 G176/G177/G176L...
  • Page 154 This SP outputs a text file ( .txt) that lists the counts for the application SD card 5887 inserted into the SD service slot. Before executing this SP, you must first create a folder entitled "SD_COUNTER" in the root directory of the SD card. G176/G177/G176L 5-52...
  • Page 155 This information is stored in NVRAM. If the NVRAM is defective or has been 5907 replaced, these names should be registered again. To set the plug and play model name, enter the model number, and then press [#Enter]. 5-53 G176/G177/G176L...
  • Page 156 Yes: Maintenance Kit alerts will display. 5930 002 Important: The setting of SP5930 002 is ignored unless SP5930 001 is set to "Yes". In order for the PM alerts to display both SP5930 001 and SP5930 002 must be set to "Yes". G176/G177/G176L 5-54...
  • Page 157 5990 SP Print Mode 5990 001 All (Data List) 5990 002 SP (Mode Data Li(st) 5990 004 Logging Data Prints the summary sheet for the item selected. 5990 005 Diagnostic Repor(t) 5990 006 Non-Default 5990 007 NIB Summary 5-55 G176/G177/G176L...

  • Page 158: Sp7-Xxx: Data Log

    10. 7403 006 Latest 5 7403 007 Latest 6 7403 008 Latest 7 7403 009 Latest 8 7403 010 Latest 9 Displays the total number of jams. 7502 Total Jam Display range: 0000 to 9999 G176/G177/G176L 5-56...
  • Page 159 Error At Power On Off-1 VerticalSN Off-2 VerticalSN Off-RegistBypass Off-Regist Tray1 Off-Regist Tray2 7504 Off-Regist Tray3 Off-RegistDuplex On-Regist SN Off-Exit SN On-Exit SN Off-Duplex Exit On- Duplex Exit Off-Dup Inverter On- Dup Inverter Off-Duplex Exit On- Duplex Exit 5-57 G176/G177/G176L...
  • Page 160 DATE is the date the jams occurred. 7507 001 Latest Sample Display: CODE: 007 7507 002 Latest 1 TOTAL: 0000334 7507 003 Latest 2 7507 004 Latest 3 7507 005 Latest 4 7507 006 Latest 5 7507 007 Latest 6 G176/G177/G176L 5-58...
  • Page 161 It counts up one page when the engine has made the average number of rotations that is required for one page of a three-page job. 7803 001 Paper 7803 002 Transfer Rol(ler) 7803 003 Paper Feed Rol(ler) 7803 004 Fusing Unit 5-59 G176/G177/G176L...
  • Page 162 Displays the memory capacity of the controller system. Assert Info 7901 7901 001 File Name Records the location where a problem is detected in the program. The data stored in this SP is used for problem 7901 002 # of Lines analysis. 7901 003 Location G176/G177/G176L 5-60...
  • Page 163 7910 181 FONT1 7910 182 FONT2 7910 183 FONT3 7910 200 Factory 7910 202 Net File 7910 204 Printer 7910 209 Test Suite 7910 210 7910 211 Web System 7910 213 SDK1 7910 214 SDK2 7910 215 SDK3 5-61 G176/G177/G176L...
  • Page 164 FONT 7910 181 FONT1 7910 182 FONT2 7910 183 FONT3 7910 200 Factory 7910 202 Net File 7910 204 Printer 7910 209 Test Suite 7910 210 7910 211 WebSystem 7910 213 SDK1 7910 214 SDK2 7910 215 SDK3 G176/G177/G176L 5-62...
  • Page 165 Identification number of the machine (Model Name) 7931 002 Version Cartridge version number Acquires value at "01H" on the AIO ID chip and for the OEM brand displays: 1: Ricoh 7931 003 Brand ID 2: NRG 3: Komachi 4: Fujitsu Acquires value at "03H"...
  • Page 166 Remaining Toner and displays "0" to "100" (the percentage of toner remaining in the cartridge. Acquires the value at the AIO ID Chip address "2DH" and displays: 7931 013 Toner End N: Toner near end E: Toner end G176/G177/G176L 5-64...
  • Page 167 Acquires the values at the AIO ID Chip addresses "58H" to "5BH" and displays Year-Month-Date of 7931 018 Install Date installation for the AIO unit. This setting updates automatically through a serial interface with the machine when the new unit is installed. 5-65 G176/G177/G176L...
  • Page 168 This is information on the AIO ID Chip so if the cartridge is not installed, if the AIO is not set properly, or if the front door is open, no value will be displayed because the machine cannot communicate with the AIO. G176/G177/G176L 5-66...
  • Page 169 What It Means 7932 003 Cart Alert Toner near-end Toner end Used toner near-end Used toner end OPC service life near-end OPC service life end 5-67 G176/G177/G176L...
  • Page 170 This is the same type of information read with SP7931 005 from the AIO ID Chip for the cartridge presently installed in the machine. However, this SP 7932 005 VarietyID displays the value read from 4CH of the EEPROM. 1: 3K 2: 6K 3: 15K G176/G177/G176L 5-68...
  • Page 171 AIO. The counter increments by "1" for every 6 sec. of drum rotation time. To calculate the actual time in sec., multiply the displayed value by 6. 5-69 G176/G177/G176L...
  • Page 172 AIO. Important Note: This SP reads only the engine information. This information is not sent to the controller. 7993 Total counter Displays the engine total counter. It counts up for all prints, including service reports. G176/G177/G176L 5-70...

  • Page 173: Sp8Xxx: Data Log 2

    These counters are used primarily to calculate charges on use of the machine, so the following pages are not counted as printed pages: Blank pages in a duplex printing job. Reports printed to confirm counts. 5-71 G176/G177/G176L...
  • Page 174 [0 to 9999999/0/1] O: 2-2-05 Total Simplex/Duplex Pages These SPs count by binding and combine, and n-Up settings the number of 8427 pages processed for printing by Other applications [0 to 9999999/0/1] G176/G177/G176L 5-72...
  • Page 175 These SPs count by print paper size the number of pages printed by all 8441 applications. [0 to 9999999/0/1] P: 2-2-07 Total Printed/Paper Size: Printer Application These SPs count by print paper size the number of pages printed by the 8444 printer application. [0 to 9999999/0/1] 5-73 G176/G177/G176L...
  • Page 176 These counters do not distinguish between LEF and SEF. 2-2-08 Printed Pages/Paper Tray 8451 These SPs count the number of sheets fed from each paper feed station. [0 to 9999999/0/1] Bypass Tray Bypass Tray Tray 1 Main Machine Tray 2 Main Machine G176/G177/G176L 5-74...
  • Page 177 [0 to 9999999/0/1] 8464 These SPs count by paper type the number pages printed by the printer application. 846x 1 Normal 846x 2 Recycled 846x 3 Special 846x 4 Thick 846x 5 Normal (Back) 846x 6 Thick (Back) 5-75 G176/G177/G176L...
  • Page 178 If stapling is selected for finishing and the stack is too large for stapling, the unstapled pages are still counted. The counts for staple finishing are based on output to the staple tray, so jam recoveries are counted. G176/G177/G176L 5-76...
  • Page 179 These counts correspond to the total counts recorded with the mechanical counter. 8601 001 Cvg: BW % Coverage: BW Pages 8601 011 Cvg: BW Pages Coverage: BW Percent 3-0-01 Dev Counter 8771 This SP counts the number of development roller rotations for development. [0 to 9999999/0/1] 5-77 G176/G177/G176L...
  • Page 180 3 ~ 4%:BK 8851 031 5 ~ 7%:BK 8851 041 8 ~ 10%:BK 3-2-04 Toner Coverage 11-20% This SP counts the number of prints that had a percentage of black dot 8861 coverage in the range 11-20%. [0 to 9999999] G176/G177/G176L 5-78...
  • Page 181 Coverage Display (Previous) 8901 3-2-09 Coverage Display (Before Previous) 8911 3-2-10 Dot Coverage Count Total 8921 These counters count the percentage of dot coverage for K toner. (This machine uses only black toner) 8921 001 Coverage (%):BK 8921 011 Coverage/P:BK 5-79 G176/G177/G176L...
  • Page 182 Total down time due to SC errors. 8941 007 PrtJam Total down time due to paper jams during printing. 8941 008 OrgJam Total down time due to original paper jams. 8941 009 PM Unit End Total down time due to toner end. G176/G177/G176L 5-80...
  • Page 183 Printer: BW Total output for black & white 8999 013 Duplex (SP8411 001) Total output of duplexed sheets 8999 015 Cvg:BW% (SP8601 001) Total output of K pages 8999 017 Cvg:BW Pages (SP8601 011) Total output of K pages 5-81 G176/G177/G176L...

  • Page 184: Firmware Update

    Keep SD cards in a safe location. Never store SD cards in locations where they will be exposed to: High temperature, high humidity Direct sunlight Strong vibrations Magnetic fields generated by machines or electronic devices Handle SD cards carefully to avoid dropping them, bending, scratching, etc. G176/G177/G176L 5-82...

  • Page 185: Upload/Download

    Turn on the power. The screen remains blank for about 20 to 30 sec., "Please Wait" appears, then you will see "Engine", the first item available for selection. The first selection "Engine" will appear about 1 min. after switching the power 5-83 G176/G177/G176L...
  • Page 186 If you intend to update another program, leave the SD card in Slot 1 and turn on the power. The firmware has not updated successfully if the “Power Off On” message does not appear. If this occurs, turn the machine power off/on and repeat the procedure. G176/G177/G176L 5-84...

  • Page 187: Nvram Data Upload/Download

    Turn off the main power switch. Remove the SD card slot cover. Insert an SD card into Slot 1. Turn on the main power switch. Enter the SP mode and do SP5824 (NVRAM Upload). Push [#Enter]. <NVRAM Upload> execute? 5-85 G176/G177/G176L...

  • Page 188: Downloading Nvram Data

    If the NVRAM data file cannot be downloaded successfully, the settings must be restored manually using the SMC report that was printed before NVRAM uploading. Confirm that the main power switch is off. Confirm that you have the SD card that contains the proper NVRAM data for the machine. G176/G177/G176L 5-86...
  • Page 189 The machine cannot do the download if the file name SD card name is different from the printer serial number. Exit the SP mode. 10. Turn off the main power switch. 11. Remove the SD card. 12. Turn on the main power switch. 5-87 G176/G177/G176L...

  • Page 190: Overview

    SD card. The application programs are moved from Slot 1 to Slot 2. Turn off the main power switch. Remove the SD card slot cover. Insert the original SD card with the application in Slot 1. Insert the SD card to receive the application in Slot 2. G176/G177/G176L 5-88...

  • Page 191: Undo Exec

    Turn on the main power switch. Enter the SP mode and do SP5873 “Undo Exec.” Follow the messages on the operation panel to complete the procedure. Exit the SP mode. Turn off the main power switch. 10. Remove both SD cards. 5-89 G176/G177/G176L...
  • Page 192 SD Card Application Move 11. Insert the SD card with the restored application in Slot 2. 12. Turn on the main power switch. 13. Confirm that the application operates normally. G176/G177/G176L 5-90...

  • Page 193: Controller Self Test At Power-On

    Power-on self-diagnostics: The machine automatically starts the self-diagnostics just after the power has been turned on. SC detection: The machine automatically detects SC conditions at power-on or during operation. The following flowchart shows flow of the power-on self-diagnostic test 5-91 G176/G177/G176L...

  • Page 194: Menu Mode

    The items that are displayed only in the system administrator menu mode are enclosed in square brackets in the table below. 1st Level 2nd Level Print One File Sample Print Print All Files Delete One File Del. All Files G176/G177/G176L 5-92...
  • Page 195 Del. All Files Error File(s) Stored Print Print One File Print All Files Delete One File Del. All Files Error File(s) Paper Input Bypass Size Tray Paper Size Paper Type Aut. Tray Select Tray Priority List/Test Print Multiple Lists 5-93 G176/G177/G176L...
  • Page 196 PS Config. Page PDF Config. Page Hex Dump Maintenance Image Density Registration Curl Prevention Del. All Temp Del. All Stored HD Format Date/Time [Network Security] Key Repeat Panel Key Sound Warm-Up Beeper [Menu Protect] [List Print Lock] [Ppr. Size Err.] G176/G177/G176L 5-94...
  • Page 197 Auto Continue Memory Overflow Copies Printer Lang Sub Paper Size Page Size Edge-Edge Print Def. Print Lang. Blank Pages Rotate 180 Deg. Energy Saver Auto Reset Time Auto Del. Temp Auto Del. Stored Memory Usage Unit of Measure 5-95 G176/G177/G176L...
  • Page 198 Auto Email Ntfy Host Interface I/O Buffer I/O Timeout Network Setup [USB Speed] Fixed USB Port PCL Menu Orientation Form Lines Font Source Font Number Point Size Font Pitch Symbol Set Courier Font Ext. A4 Width Append CR to LF G176/G177/G176L 5-96...
  • Page 199 Menu Mode 1st Level 2nd Level Resolution Data Format PS Menu Resolution PDF Menu PDF: Change PW PDF Group PW Resolution Language (Select 1 of 14 available languages) 5-97 G176/G177/G176L...

  • Page 200: Controller Board Dip Switches

    Controller Board DIP Switches 5.9 CONTROLLER BOARD DIP SWITCHES The controller board DIP switches must always be set as shown below. Controller Board Default DIP SW Settings DIP SW Setting Do not change these settings. G176/G177/G176L 5-98...
  • Page 201 DETAILS SECTION 6 DETAILED DESCRIPTIONS REVISION HISTORY Page Date Added/Updated/New None...

  • Page 203: Details

    Laser unit Cartridge (AIO-type) Charge roller Development roller By-pass feed tray By-pass feed roller Paper feed roller Friction pad Registration roller 10. Transfer roller 11. Drum 12. Pressure roller 13. Hot roller 14. Paper exit roller 15. Quenching lamp G176/G177/G176L...

  • Page 204: Paper Path

    Overview 6.1.2 PAPER PATH [A] Optional duplex unit [B] Standard paper tray unit [C] Optional paper tray unit G176/G177/G176L...

  • Page 205: Board Structure

    The engine board controls all the mechanical components. The printer controller board connects to the engine board through a PCI bus. The IEEE 802.11b Interface Unit (G813/B874) and Gigabit Ethernet Board (G874) cannot be installed at the same time. G176/G177/G176L...

  • Page 206: Controller Board

    Board Structure 6.2.2 CONTROLLER BOARD The controller controls all applications. Optional features can be added by inserting application an SD card into the controller SD slot. G176/G177/G176L...
  • Page 207 NIB. The Ethernet interface connection. Ethernet support is built into the controller. No installation is required for the Ethernet function. EEPROM. Stores the data for the SP code settings. NVRAM. The memory that stores the system configuration and other information. G176/G177/G176L...

  • Page 208: Printing Process

    Separation: The separation plate helps to remove the paper from the drum. Cleaning: The cleaning blade removes remaining toner on the drum surface after the image moved to the paper. Quenching: The light from the quenching lamp cancels the charge that stays on the drum. G176/G177/G176L...

  • Page 209: Laser Exposure

    LD unit to the synchronization detector. Two laser beams: The LD unit writes two lines at the same time. LD safety shutter: When the user opens the front cover, the shutter closes and blocks the laser beam path. G176/G177/G176L...

  • Page 210: Automatic Power Control (Apc)

    Automatic Power Control (APC) The LD control IC on the engine board automatically controls power for the laser diodes. The laser diode power is adjusted in the factory. Never touch the variable resistors on the LD unit in the field. G176/G177/G176L...

  • Page 211: Ld Safety Mechanisms

    The laser shutter [A] is for back-up safety. If the switches do not work, the +5VLD power gets to the laser diodes if the cover is open. The laser shutter cuts the laser beam when the front cover is open. G176/G177/G176L...

  • Page 212: Cartridge Overview

    This type of cartridge is known as the “All-in One” (AIO) cartridge. 6.3.4 DRUM CHARGE [A] Charge roller [B] Cleaning pad The charge roller [A] gives the drum surface a negative charge of approximately –900 V. The cleaning pad [B] touches the charge roller to clean the surface. G176/G177/G176L 6-10...

  • Page 213: Development

    When the user removes the developer seal, the developer falls and the magnetic reverse roller [7] mixes the developer. This machine does not use a TD sensor or ID sensor to control toner density. The pre-doctor blade [3] and the doctor blade [6] control the toner density. 6-11 G176/G177/G176L...

  • Page 214: Toner Density Control

    When the toner on the development roller increases, the circulating region [C] gets bigger to let less toner get to the development roller. Development Bias Toner transfers from the development roller to the areas on the drum that were exposed to the laser. G176/G177/G176L 6-12...

  • Page 215: Toner End Detection

    After toner near-end, the machine can print approximately 200 additional pages. At this time, the “Replace Printer Cartridge Soon” message appears. After the additional pages have printed, printing stops and then the “Replace Printer Cartridge” message remains in the display. 6-13 G176/G177/G176L...

  • Page 216: Main Motor Rotation Count

    AIO, the machine prevents printing, and a completely new AIO must be installed. If you try to print again by removing/replacing the old AIO or adding new toner or other trickery, there will be no printing. G176/G177/G176L 6-14...

  • Page 217: Summary

    AIO is placed in the machine. Why is this feature disabled? Ricoh does not support the practice of refilling old AIOs with fresh toner, so the feature is disabled by default. But if field service stations know that this practice occurs in their region, or they know a customer who is doing this, then they can enable the feature.
  • Page 218 This condition will occur if an old AIO is refilled with toner. The "Ready". grey area in the diagram is marked ‘out of guaranteed range’ because Ricoh cannot guarantee the operation of the machine if an old AIO is refilled with toner. G176/G177/G176L...
  • Page 219 Previous Running Time Previous Number of Alerts Previous AIO Type (Accessory or 15 K) Present Running Time Present Number of Alerts Present AIO Type (Accessory or 15 K) Running Time When AIO Replaced Current Running Time Remaining (%) 6-17 G176/G177/G176L...

  • Page 220: Paper Feed

    Paper Feed 6.4 PAPER FEED 6.4.1 OVERVIEW Registration Roller Relay Roller By-pass feed roller By-pass friction pad Paper end sensor Friction pad Feed roller Paper tray Remaining paper sensors (1 and 2) G176/G177/G176L 6-18...
  • Page 221 Paper size switch Tray Capacity: 500 sheets Tray Extension: Available By-pass Tray Paper Feed System: Feed roller and friction pad Paper Lift Mechanism: Cams and springs Paper Detection: By-pass tray paper sensor Paper Size Detection: None Tray Capacity: 100 sheets 6-19 G176/G177/G176L...

  • Page 222: Paper Tray

    These paper sizes can be used: Paper Sizes Tray Mode Possible Paper Sizes Short (default) A5 (LEF/SEF), B5 (SEF), A4 (SEF), LT (SEF) Long LG (SEF), 8.5" x 13" (SEF), 8" x 13" (SEF), 8.25" x 13" (SEF) G176/G177/G176L 6-20...

  • Page 223: Paper Lift

    Paper tray Remaining paper sensors (1 and 2) The friction pad cannot be adjusted. The machine makes a paper buckle at the registration roller to correct paper skew. The paper buckle can be adjusted with engine SP 1003. 6-21 G176/G177/G176L...

  • Page 224: Paper Size Detection

    Paper Feed Paper Size Detection [A] Paper size switch [B] Paper size dial Paper Size Detection Table Size A4 SEF A5 SEF B5 SEF Custom Size LG SEF LT SEF HLT SEF G176/G177/G176L 6-22...

  • Page 225: Paper End Detection

    Remaining paper is detected by the combination of the remaining paper sensor signals. The signals from the sensors indicate whether there are 500, 450, 250, or 50 sheets remaining. [A] Remaining paper sensor 1 [B] Remaining paper sensor 2 6-23 G176/G177/G176L...

  • Page 226: By-Pass Tray

    . These cams release the bottom plate to press the stack of paper against the feed roller. There is no width sensor. To prevent bad effects from too much friction between the feed roller and friction pad, the feed roller contains a metal plate. G176/G177/G176L 6-24...

  • Page 227: Image Fusing And Paper Exit

    Image Fusing and Paper Exit 6.5 IMAGE FUSING AND PAPER EXIT 6.5.1 OVERVIEW Paper exit roller Hot roller strippers Thermostat Thermistor Fusing lamp Hot roller Fusing pressure roller Pressure spring Fusing exit roller 10. Paper exit sensor 6-25 G176/G177/G176L...

  • Page 228: Fusing Drive

    ) and slide the entrance guide to the right. Replace the two end screws only. Do not replace the middle screw. This procedure allows paper to have more direct access to the gap between the hot roller and the pressure roller. G176/G177/G176L 6-26...

  • Page 229: Pressure Roller

    This prevents jams and wrinkling when printing on envelopes. Lower the lever to reduce the gap for all other print jobs. Normally this lever should be down. 6-27 G176/G177/G176L...

  • Page 230: New Fusing Unit Detection

    SP mode 7804. If Meter Charge Mode is disabled (default), after the fusing unit has been replaced: (1) the CPU detects the new unit, (2) the “Replace Maintenance Kit” message disappears automatically, and (3) the maintenance counter resets automatically. G176/G177/G176L 6-28...

  • Page 231: Fusing Temperature Control

    (The soft start process prevents the room lights from flickering.) The lamp stays on until the thermistor detects the standby temperature. Then the CPU maintains this temperature using on-off control. To start printing, the CPU raises the temperature to the printing temperature. 6-29 G176/G177/G176L...

  • Page 232: Overheat Protection

    If the thermistor overheat protection fails, there is a thermostat in series with the common ground line of the fusing lamp. If the temperature of the thermostat becomes greater than 210 °C, the thermostat opens, removing power from the fusing lamp. At this time, the machine stops operation. G176/G177/G176L 6-30...

  • Page 233: Paper Exit

    [B] Paper exit sensor When the paper overflow detection sensor [A] is activated, the machine detects that the paper stack height has exceeded a certain limit and stops printing. The paper exit sensor [B] detects paper misfeeds. 6-31 G176/G177/G176L...

  • Page 234: Energy Saver Mode

    +24V and +5V lines are not active. Leaving Energy Saver Mode The machine leaves energy saver mode when one of the following events occur: Print command received from the PC Any cover opened and closed Any operation panel keys pressed G176/G177/G176L 6-32...

  • Page 235: Controller Functions

    The meter-charge counter is not the same as the PM counter because the meter-charge counter does not count up in the following cases: Blank rear side during duplex printing Blank page when using the “Cover Page” or “Two in One” features Service reports The meter-charge counter cannot be reset. 6-33 G176/G177/G176L...

  • Page 237: Specifications

    SPECIFICATIONS SECTION 7 SPECIFICATIONS REVISION HISTORY Page Date Added/Updated/New None...

  • Page 239: Basic Specifications

    2-line display (2 lines x 16 characters/line) Resolution (dpi ) 1,200 x 600 dpi, 600 x 600 dpi, 300 x 300 dpi G176/G176L 31 ppm, G177 36 ppm (plain paper, A4/LT SEF) Printing Speed Note: 31 ppm/36 ppm applies to both simplex and duplex printing.
  • Page 240 Op. Paper Tray 60-130g/m , 16-34 lb. Bypass tray 60-162g/m , 16-43 lb. G176: 34 sec or less, 12 sec or less recovery from sleep mode Warm-up Time G176L: 19 sec or less, 12 sec or less recovery from sleep mode G176/G177/G176L...
  • Page 241 Selectable: 1, 5, 15, 30, 45, 60, Off US: UL60950, CUL Safety Standard EU: CE Marking, TUV(EN60950), ICE60950 US: Energy Star Environmental Standard EU: BAM specifications Total counter Electric Counter Supported DESS Supported 40 GB Standard 192 MB Maximum 384 MB G176/G177/G176L...

  • Page 242: External Options

    64-105g/m , 17-28 lb. Dimensions (w x d x h) 340 x 380 x 250 mm, 1.34 x 1.50 x 0.99 in. Weight 6.0 kg or less, 13.3 lb or less G176: 31 ppm Printing Speed G177: 36 ppm G176/G177/G176L...

  • Page 243: Paper Sizes

    128x182 mm 105x148 mm Legal 8 1/2”x14” mm Letter 8 1/2”x11” mm 5 1/2” x 8 1/2” 5 1/2” x 8 1/2” Exec 7 1/4”x10 1/2” 8” x 13” Foolscap 8 1/2” x 13” Folio 8 1/4” x 13” G176/G177/G176L...

  • Page 244: Envelope

    Supported and the size is automatically detected. Need to select paper size by operation panel after the dial is set to Need to input paper size by operation panel and driver. Need to specify paper size by using dial. Not supported. Does not apply G176/G177/G176L...

  • Page 245: Envelopes

    Basic Specifications The printable area may vary depending on paper size, printer language and printer driver settings. Envelopes G176/G177/G176L...

  • Page 246: Operating Environment

    Printing 630 W or less 630 W or less Power Consumption (North America) Energy Saver 4.5 W or less 10 W or less G176/G176L Energy Saver 4.5 W or less 10 W or less G177 Europe Main Unit Full System...
  • Page 247 Basic Specifications G176/G176L Main Unit Full System Printing 59 dB or less 63 dB or less Sound Pressure Standby 36 dB or less 36 dB or less Level (All Models) G177 Main Unit Full System (Operating Position) Printing 61 dB or less...

  • Page 248: Operation Panel Led Specifications

    Data being received or processed or the printer Flashing Data In Green is spooling Data being received or processed; more data coming Printer off-line Online Green Flashing Going off-line Ready to print No messages or error conditions requiring attention Error Printer requires service G176/G177/G176L 7-10...

  • Page 249: Controller Specifications

    Controller Specifications 7.2 CONTROLLER SPECIFICATIONS 7.2.1 CONTROLLER BOARD 7-11 G176/G177/G176L...

  • Page 250: Printing Functions

    Controller Specifications SDRAM DIMM I/F Engine I/F PCI Option HDD I/F IEEE1284 I/F SD Card I/F (Slots x2) USB I/F LAN I/F 7.2.2 PRINTING FUNCTIONS Job Spool Adjustment Registration Adjustment Image Density * With HDD G176/G177/G176L 7-12...

  • Page 251: Printer Drivers

    7.2.3 PRINTER DRIVERS PostScript3 Windows Item PCL5e/6 RPCS 2000/ 9x/Me 8.6-9.2 Job Binding Send to Document Server Sample Print Locked Print Reduce/Enlarge (Scaling) Reduce/Enlarge Centering Collate Layout (N-up) Poster Duplex Booklet1 Booklet2 (Magazine) Non-Reduction Booklet Punch Staple Front Cover Sheet 7-13 G176/G177/G176L...
  • Page 252 Chaptering (Single Page Insert) Chaptering (Page Block Insert) User Defined Pages Tab Stock Printing Mirror Image Print Negative Image Print Dithering Image Smoothing Edge Smoothing Toner Saving Watermark Form Overlay Header/Footer Adjust image position Binding Margins User ID User Code G176/G177/G176L 7-14...
  • Page 253 Controller Specifications Rotate Print Reverse Order Print Do not print Blank pages Edge to Edge Print Y*3: After Mac OSX10.2 7-15 G176/G177/G176L...

  • Page 254: Supported Environments

    Home Ed. Yes * Yes * Win Server Standard Yes * 2003/2003R2 Enterprise Yes * Datacenter Ed. Standard x64 Ed. Yes* Yes* Yes* Yes * Enterprise x64 Ed. Yes* Yes* Yes* Yes * Datacenter x64 Ed. Web Ed. G176/G177/G176L 7-16...

  • Page 255: Notes

    Mac OS X Native (v. 10.1 or Later) *1 Notes Mac OS X v.10.0.X is not supported. Plug-in function for "Sample Print", "Locked Print" and "User Code" is supported from Mac OS X 10.2 and later. Mac OS X v.10.2.0 is not supported. 7-17 G176/G177/G176L...

  • Page 256: Unix Environment

    NDPS Gateway later Microsoft Windows NT4.0/2000/XP Supported (V4 Release) Professional with Novell Client 4.83 or later Client OS *Windows Me/XP Home Edition is not supported since Novell Client does not support this OS. Localization English, German, French, Italian, Spanish G176/G177/G176L 7-18...

  • Page 257: Sap R/3 Environment

    Code 128, Code 39, Code 93, Barcode Fonts (Support Supported Codebar, 2 of 5 interleaved/Industrial/Matrix, Latin 1 only) Barcode & OCR MSI, USPS, UPC/EAN Fonts* OCR Fonts OCR A, OCR B * Need to purchase Barcode & OCR Package 7-19 G176/G177/G176L...

  • Page 258: Controller Interface Specifications

    11 Mbps, 5.5 Mbps, 2 Mbps, 1 Mbps Protocol TCP/IP, IPX/SPX, SMB, AppleTalk Supported OS Windows 9x/Me/NT/2000/XP, Mac OS 140m (11M bps), 200m (5.5 Mbps), 270 m (2 Distance between devices Mbps), 400 m (1 Mbps) Frequency From 2,400 MHz to 2,497 MHz G176/G177/G176L 7-20...
  • Page 259 Ad hoc mode, 802.11b Ad hoc mode, Type of connection Infrastructure mode, WPA Gigabit Ethernet (Option) Data Transmission Speed 10M bps, 100 Mbps, 1000 Mbps Protocol TCP/IP, IPX/SPX, SMB, AppleTalk Supported OS Windows 9x/Me/NT/2000/XP, Mac OS Distance between devices 100m 7-21 G176/G177/G176L...

  • Page 260: Supported Utilities

    Printer Utility for Mac YES* DeskTopBinderLite –SmartDeviceMonitor for Client Font Manager 2000 WebImageMonitor (embedded web server) *1Mac OS X v.10.0.x is not supported. *2Mac OS X v.10.2.0 is not supported Optional Utilties Utility Name Supported? DeskTopBinder Professional Web Smart Device Monitor G176/G177/G176L 7-22...

  • Page 261: Machine Configuration

    7.3 MACHINE CONFIGURATION 7.3.1 SYSTEM COMPONENTS All the options listed below can be installed by the customer, except the Data Overwrite Security Unit. Main Mainframe (31 ppm) G176/G176L 31 ppm Mainframe (36 ppm) G177 36 ppm Options Paper Feed Unit TK1030 G894 1 or 2 trays can be installed.
  • Page 262 G813 IEEE 802.11b Interface Unit Type I G874 Gigabit Ethernet Board Type A G874 VM Card Type D G874 Data Storage Card Type A G874 Must be installed by a Data Overwrite Security Unit Type E G874 technician. G176/G177/G176L 7-24...
  • Page 263 G893 DUPLEX UNIT AD1000 G893 DUPLEX UNIT AD1000 REVISION HISTORY Page Date Added/Updated/New None...
  • Page 265 G893 TABLE OF CONTENTS 1. REPLACEMENT AND ADJUSTMENT ........1 1.1 COVERS....................1 1.2 DUPLEX BOARD AND SENSORS ............2 1.3 INVERTER MOTOR.................3 2. DETAILED DESCRIPTIONS............4 2.1 OVERVIEW....................4 2.1.1 MECHANICAL COMPONENTS............4 2.1.2 DRIVE COMPONENTS ..............5 2.1.3 ELECTRICAL COMPONENTS ............5 2.2 DUPLEXING ....................7 2.2.1 A4 LEF/LT LEF AND LONGER PAPER..........7 2.2.2 PAPER SMALLER THAN A4 LEF/LT LEF........7 2.2.3 FEED IN AND EXIT MECHANISM ..........9 2.3 SAFETY FUSE..................10...

  • Page 267: Replacement And Adjustment

    Covers 1. REPLACEMENT AND ADJUSTMENT 1.1 COVERS Turn off the main power switch and unplug the machine before attempting any of the procedures in this section. Remove the duplex unit from the main unit. Open the upper cover [A] [A] Upper cover (!x 2) [B] Right cover (!x 2) [C] Left cover (!x 1) [D] Front cover (!x 2)

  • Page 268: Duplex Board And Sensors

    1.2 DUPLEX BOARD AND SENSORS Remove front cover (see previous section). [A] Duplex board bracket (! x2) [B] Duplex board (! x4) [C] Inverter sensor (" x1) [D] Entrance sensor (" x1) [E] Exit sensor (" x1) G893...

  • Page 269: Inverter Motor

    Inverter Motor 1.3 INVERTER MOTOR Remove the motor bracket before removing the inverter motor. [A] Inverter motor (Timing belts x2, # x1, Gear x1) G893...

  • Page 270: Detailed Descriptions

    2. DETAILED DESCRIPTIONS 2.1 OVERVIEW 2.1.1 MECHANICAL COMPONENTS 1. Junction gate 2. Entrance sensor 3. Inverter rollers 4. Transport rollers 5. Transport sensor 6. Exit sensor G893...

  • Page 271: Drive Components

    Overview 2.1.2 DRIVE COMPONENTS 1. Transport motor 2. Transport rollers 3. Inverter motor 4. Inverter rollers 2.1.3 ELECTRICAL COMPONENTS 1. Entrance sensor 2. Duplex board 3. Inverter motor G893...
  • Page 272 4. Junction gate solenoid 5. Inverter sensor 6. Exit sensor 7. Transport motor 8. Cover switch G893...

  • Page 273: Duplexing

    Duplexing 2.2 DUPLEXING 2.2.1 A4 LEF/LT LEF AND LONGER PAPER The duplex unit can store only one sheet of paper. Example: 8 pages. The center number (not circled) in the illustration shows the page order in the job. The circled numbers show the printing order (white circles: 1st side, black circles: 2nd side).
  • Page 274 G893...

  • Page 275: Feed In And Exit Mechanism

    Duplexing 2.2.3 FEED IN AND EXIT MECHANISM Feed: The junction gate solenoid [A] turns on to open the junction gate [B]. The paper fed from the main frame is sent to the inverter section [C]. Inversion and Exit: After the trailing edge of the paper passes the inverter sensor [D], the inverter roller [E] changes its rotation direction and the paper goes to the transport area [F].

  • Page 276: Safety Fuse

    2.3 SAFETY FUSE Name Rating Manufacturer Type No. FU500 DC50V/1.5A ROHM CO .,LTD ICP-N38 G893...
  • Page 277 G894 PAPER FEED UNIT TK1030 & G362 ENVELOPE FEEDER TYPE 400 G894 PAPER FEED UNIT TK1030 & G362 ENVELOPE FEEDER TYPE 400 REVISION HISTORY Page Date Added/Updated/New None...
  • Page 279 G894/G362 TABLE OF CONTENTS 1. REPLACEMENT AND ADJUSTMENT ..........1 1.1 PAPER FEED UNIT ..................1 1.2 PAPER FEED ROLLER ................2 1.3 FRICTION PAD..................... 3 1.4 PAPER FEED CLUTCH, MOTOR..............4 1.5 PAPER TRAY BOARD.................. 5 1.6 PAPER SIZE SWITCH.................. 6 2.

  • Page 281: Replacement And Adjustment

    Paper Feed Unit 1. REPLACEMENT AND ADJUSTMENT 1.1 PAPER FEED UNIT Turn off the main power switch and unplug the machine before attempting any of the procedures in this section. Remove the paper tray unit from the main unit. Pull out the paper tray. Before removing the paper feed unit, turn the main unit over.

  • Page 282: Paper Feed Roller

    Paper Feed Roller 1.2 PAPER FEED ROLLER Pull out the paper tray. Pull lever [B] to remove the paper feed roller [A]. G894/G362...

  • Page 283: Friction Pad

    Friction Pad 1.3 FRICTION PAD Pull out the paper tray Remove friction pad [A]. G894/G362...

  • Page 284: Paper Feed Clutch, Motor

    Paper Feed Clutch, Motor 1.4 PAPER FEED CLUTCH, MOTOR [A] Bracket (! x1) [B] Paper feed clutch (" x1, gear x1) [C] Paper feed gear (" x1) [D] Feed motor bracket (! x3, # x2) [E] Feed motor (! x2, Timing belt x1, # x1) G894/G362...
  • Page 285 Paper Tray Board 1.5 PAPER TRAY BOARD [A] Paper tray board (Hooks x3, # x2) G894/G362...
  • Page 286 Paper Size Switch 1.6 PAPER SIZE SWITCH [A] Paper size switch (Hook x1, # x1) G894/G362...

  • Page 287: Paper Tray Board

    Overview 2. DETAILED DESCRIPTIONS 2.1 OVERVIEW 2.1.1 MECHANICAL COMPONENTS Paper feed roller Friction pad Bottom plate 2.1.2 ELECTRICAL COMPONENTS Paper tray board Paper end sensor Paper feed clutch Paper feed sensor Paper size switch Remaining paper sensor 1 Paper feed motor Remaining paper sensor 2 G894/G362...

  • Page 288: Paper Feed And Separation

    Paper Feed and Separation 2.2 PAPER FEED AND SEPARATION The paper tray holds 500 sheets of paper The paper feed unit uses the feed roller and friction pad method to separate paper. [A] Paper feed roller [B] Friction pad [C] Pressure spring [D] Paper feed sensor G894/G362...

  • Page 289: Paper Lift

    Paper Lift 2.3 PAPER LIFT Paper lift is the same as for the main unit. When the user puts the tray [A] in the machine, the bottom plate [B] lifts as follows. The slopes on the guide blocks [C] on the machine lift the tray arms [D] up. The springs [E] between the tray arms and bottom plates lift the plate.

  • Page 290: Paper End Detection

    Paper End Detection 2.4 PAPER END DETECTION When the paper tray runs out of paper, the feeler [A] drops into the cutout in the bottom plate to actuate the remaining paper sensor. G894/G362...

  • Page 291: Remaining Paper Detection

    Remaining Paper Detection 2.5 REMAINING PAPER DETECTION [A] Remaining paper sensor 1 [B] Remaining paper sensor 2 Remaining Remaining Paper Amount of paper Paper Sensor 2 Sensor 1 0 sheets (0%) 50 sheets (10%) 250 sheets (50%) 450 sheets (90%) 500 sheets (100%) OFF: Actuator Out, ON: Actuator In G894/G362...

  • Page 292: Paper Size Detection

    Paper Size Detection 2.6 PAPER SIZE DETECTION [A] Paper size switch [B] Paper size dial Paper Size A4 SEF A5 SEF B5 SEF Custom Size LG SEF LT SEF HLT SEF ON (Not pushed) OFF (Pushed) The machine disables paper feed from a tray if the paper size cannot be detected (if the paper size actuator is broken or no tray is installed) When the paper size dial is at the “*”...

  • Page 293: Safety Fuse

    Safety Fuse 2.7 SAFETY FUSE Name Rating Manufacturer Type No. FU500 DC50V/1.5A ROHM CO .,LTD ICP-N38 G894/G362...

  • Page 294: Envelope Feeder

    Envelope Feeder (G362) 3. ENVELOPE FEEDER 3.1 ENVELOPE FEEDER (G362) This envelope feeder is a tray that slides into the optional paper feed unit, replacing the paper tray. If two optional trays have been installed, the envelope feeder must go into the top tray.

This manual is also suitable for:

G177G176l

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