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6. Troubleshooting

A paper jam has occurred near the image drum.

Remove the jammed paper by following the procedure below. 

1

Insert your finger into the recess on the right side of the machine and pull the 
front cover open lever (1) to open the front cover (2) forward.

2

Press the open button (3) and open the output tray (4).

3

Remove all four image drums and place them on a flat surface.

Error Code "381", "638"

Burns may result.

The fuser unit is extremely hot. Do not touch it.

Summary of Contents for C834

Page 1: ...C824 C834 C844 ES8434 User s Manual...

Page 2: ...necting a USB Cable 42 Connecting a LAN Cable 43 Installing a Printer Driver to a Computer 46 For Windows 46 For Mac 49 Selecting a connecting method between different segments 50 4 Print 51 Supported...

Page 3: ...rum 124 Replacing the Image Drum Only 125 Replacing the Image Drum and Toner Cartridge at the Same Time 128 Replacing Maintenance Units 132 Replacing the Belt Unit 132 Replacing the Fuser Unit 136 Cle...

Page 4: ...1 Before starting For Your Safety About This Manual Preface Trademarks License...

Page 5: ...ne is dropped or the cover is damaged unplug the power plug from the outlet and contact your dealer Electric shock fire or injury may result Unplug the power plug regularly and clean the bases of and...

Page 6: ...supply or inverter Fire may result Do not go near the paper output part when you turn the power on or when printing is in progress Injury may result Do not touch a broken liquid crystal display Injury...

Page 7: ...rporation Manual Composition The following manual is included in this product User s Manual PDF Stored in the DVD ROM which comes with the machine Advanced Manual PDF Download this manual from the Oki...

Page 8: ...model Indicates a menu name item name option or other items that are displayed on the display screen on the operator panel Indicates a menu window or dialog name that is displayed on the screen on a...

Page 9: ...tempt to induce vomiting If inhaled move the person to an open area for fresh air Seek medical attention If it gets into the eyes flush with large amounts of water for at least 15 minutes keeping eyel...

Page 10: ...EU compliance and configurations other than this may affect that compliance The simplified EU declaration of conformity Hereby Oki Data Corporation declares that the radio equipment type DNUB O1 46664...

Page 11: ...reby granted free of charge to any person obtaining a copy of this software and associated documentation files the Software to deal in the Software without restriction including without limitation the...

Page 12: ...king the Placement Environment Checking Package Contents Names of Components How to Use of the Operator Panel Preparing Your Printer About the Power Supply Test Printing from the Printer Changing the...

Page 13: ...ents Checking names of product parts Printer Operator panel Available Options 2 Checking the placement environment Placement Environment Placement Space 3 Preparing Your Printer Unpacking Installing C...

Page 14: ...e near alcohol thinners or other flammable solvents Do not install the machine in a location within the reach of small children Do not install the machine in an unstable location such as on an unstead...

Page 15: ...15 2 Setup Side view...

Page 16: ...ge drums which are installed in the machine before shipment Do not remove a starter toner cartridge from an image drum The starter toner cartridge is not installed in the ES model Install the toner ca...

Page 17: ...ay No Name Functions 12 Open button Press this button to unlock when opening the output tray Top Cover 13 Toner cartridge Image drum K black A toner cartridge contains toner powdery ink for printing I...

Page 18: ...the sleep mode Lights up green in the power save mode and blinks green in the sleep mode 9 Numeric Keypad Enters numbers Enters alphabetical characters and symbols A password can be entered only with...

Page 19: ...after pressing the key the key functions as Fn key Only available while the stand by screen is displayed CLEAR key Deletes a character when entering a password Press numeric keys after pressing the F...

Page 20: ...53 Media Type Tray 5 54 Media Weight Tray 5 80 Paper Feed 90 Paper Size MP Tray 91 X Dimension MP Tray 92 Y Dimension MP Tray 93 Media Type MP Tray 94 Media Weight MP Tray 95 Tray Usage MP Tray 100 Pr...

Page 21: ...ge drum to direct sunlight or strong light approximately 1 500 lux or more Even under room lighting do not leave the image drum for 5 minutes or more Packaging and cushioning materials are required fo...

Page 22: ...remove protective sheets from the image drums set in the printer 4 Take the image drum K Black set forward with the toner cartridge attached and put it on the surface prepared in step 3 Image drums a...

Page 23: ...ick when it is locked in place Closing the cover without turning the toner cartridge lock lever blue may cause a malfunction Make sure to turn the cartridge lock lever until it lines up with the in th...

Page 24: ...e operator panel s display screen make sure they are closed securely For details on available paper see Supported Paper 1 Pull out the paper cassette 1 2 Set the paper size dial 2 to match the loading...

Page 25: ...ease be careful of the direction 3 Slide the paper guide 3 and paper stopper 4 to the size of paper to be loaded 4 Fan a stack of paper well and then align the edges of the paper 5 Load paper with the...

Page 26: ...26 2 Setup If the size of paper whose size can be found on the dial such as A3 and A4 set Cassette Size Cassette Size is set by factory default and you do not need to change for normal use...

Page 27: ...of Time The power supply must meet the following conditions Voltage 110 to 127V AC Range 99 to 140V AC 220 to 240V AC Range 198 to 264V AC Frequency 50 60 Hz 2 If the power supply is unstable use a v...

Page 28: ...power cord Do not use a damaged power cord Do not overload the outlet Do not connect the power cords of this machine and other electric products to the same outlet If the power cord of this machine i...

Page 29: ...se wait Printer will turn off automatically appears in the operator panel and the power switch indicator blinks every 1 second Then the printer turns off automatically and the power switch indicator g...

Page 30: ...holidays trips or other reasons unplug the power cord from the outlet This machine does not have functional failures if the power cord is unplugged for an extended period of time four weeks or more W...

Page 31: ...button to restore from the mode 1 Press the Fn key on the operator panel 2 Enter 1 0 0 using the numeric keypad check 100 is displayed on the display screen and press the ENTER button 3 Press the ENT...

Page 32: ...imes to select Admin Setup and press the ENTER button 2 Enter the administrator password using the numeric 0 9 keys and then press ENTER button The factory default password is 123456 Press 1 2 3 4 5 6...

Page 33: ...ting method between different segments This section describes how to connect the printer to a computer and install the printer driver on the supplied DVD ROM When using the software DVD ROM prepare a...

Page 34: ...34 3 Connecting to a Computer Connection Method and Flow This section describes the flow to connect the printer to a computer...

Page 35: ...ows 8 64bit Version Windows 7 Windows 7 64bit Version Windows Server 2019 Windows Server 2016 Windows Server 2012 R2 Windows Server 2012 Windows Server 2008 R2 Windows Server 2008 Windows Server 2008...

Page 36: ...at driver to choose choose the PCL printer driver PCL Printer Driver You can use it in C824 C834 C844 ES8434 The PCL printer driver is suitable for printing of business documents PS Printer Driver You...

Page 37: ...s device be 30 m or less If there is metal aluminum sash or a reinforced concrete wall between the machine and wireless LAN access points connections may be harder to be established Outdoor use of IEE...

Page 38: ...method is displayed for approximately two minutes While this message is displayed press the push button of the wireless LAN access point You cannot operate the panel when WPS is in progress 11 When W...

Page 39: ...wireless LAN access point or security If the WPA Pre shared Key is displayed If the WEP Key is displayed If neither of the above two cases is applied 10 If the displayed SSID is the same as the SSID...

Page 40: ...er the SSID you checked in step 1 and then press the ENTER button The SSID is case sensitive Enter the SSID correctly 10 Select the encryption method you checked in step 1 and then press the ENTER but...

Page 41: ...updated password 5 Press the scroll button to select Enable and then press the ENTER button 6 Press the scroll button to select Automatic Setup PushButton and press the ENTER button 7 Select Yes and...

Page 42: ...he machine 3 Insert one end of the USB cable into the USB interface connector on the machine Do not insert the USB cable into the network interface connector It may cause a malfunction 4 Insert one en...

Page 43: ...ub 2 A LAN cable is not supplied A LAN cable category 5e or higher twist pair strait is required 2 Turn off the machine 3 Insert one end of the LAN cable 1 into the network interface connector 4 Inser...

Page 44: ...ing the IP address manually press the scroll button and select Manual and press the ENTER button Proceed to the step 10 If obtaining the IP address automatically check that Auto is selected and press...

Page 45: ...l input was completed then press the BACK button 14 Press the scroll button to select Gateway Address and press the ENTER button 15 Enter the Gateway Address in the same manner of IP address All input...

Page 46: ...nd required information such as IP address is already set Depending on your OS model or version the description on this document may be different For Windows For Mac 1 Check that the printer is connec...

Page 47: ...not displayed select IP Address enter the address assigned to the printer and click Next 9 Click Recommended Install Check the software and click Start Installation starts The following software is in...

Page 48: ...e click Next Click Confirm if you need to update or you are not sure if updating is required If the following screen is displayed click Yes When the updating process is complete click Go 13 Click Next...

Page 49: ...canner when the menu is displayed 9 Click Default 10 Select the machine and then select OKI C844 PS in Use To change the name enter a new name into Name 11 Click Add 12 If the confirmation screen for...

Page 50: ...gs only when connecting between different segments using wireless LAN 1 Press the scroll button several times to select Admin Setup and press the ENTER button 2 Enter the administrator password using...

Page 51: ...4 Print Supported Paper Paper Loaded on the Tray How to Print from the Tray How to Print from the MP Tray Paper Output Canceling Printing This chapter describes how to print documents from a computer...

Page 52: ...e printing will be slower A4 210 x 297 A5 148 x 210 A6 105 x 148 B4 257 x 364 B5 182 x 257 B6 128 x 182 B6 Half 64 x 182 B7 91 x 128 B8 64 x 91 Letter 215 9 x 279 4 8 5 x 11 Legal 13 215 9 x 330 2 8 5...

Page 53: ...flap type with glue that remains intact when subjected to hot roll pressure fusing in the machine Window envelopes are not suitable Labels Labels must be of the type recommended for use in copiers an...

Page 54: ...io 8K 270 x 390 mm 8K 273 x 394 mm 8K 260 x 368 mm 16K 184 x 260 mm 16K 195 x 270 mm 16K 197 x 273 mm Custom size 2 300 sheets if paper weight is 80 g m2 Ultra Light Light 64 to 82 g m2 Medium Light 8...

Page 55: ...3 5 Legal14 Executive Statement 1 8 5 SQ Folio 8K 270 x 390 mm 8K 273 x 394 mm 8K 260 x 368 mm 16K 184 x 260 mm 16K 195 x 270 mm 16K 197 x 273 mm Index Card 1 4x6 inch 1 5x7 inch 1 Custom size 2 Com 9...

Page 56: ...al set Other Make sure to match the size of paper and that on the paper size dial Otherwise paper size error occurs and printing cannot be done For size of paper which can be loaded either horizontal...

Page 57: ...tions set the dial to Other and then set Custom Size on the operator panel and enter the width and length of paper See Printing on Custom Size Paper Advanced Manual If the size of paper whose size can...

Page 58: ...Mac PS Printer Driver C834 C844 ES8434 1 From the File menu select Page Setup 2 Select a paper size from Paper Size and then click OK 3 From the File menu select Print 4 Select Paper Feed from the pan...

Page 59: ...stacks of paper and then load them again Do not put anything other than paper for printing in the MP tray Do not leave paper in the MP tray for a long time Dust and dirt will adhere to the paper and...

Page 60: ...e or type paper from the MP tray register the paper on the operator panel If printing once proceed to the Open the file to print and print it by following the procedure below When a printer is in the...

Page 61: ...NTER button 14 Press the BACK button until MPTray Config is displayed 15 Press the scroll button to select Media Weight and then press the ENTER button 16 Press the scroll button to select the weight...

Page 62: ...Click Print on the Print Screen For Windows PS Printer Driver C834 C844 ES8434 1 Select Print from the File menu 2 Click Preferences or property 3 Select the Paper Quality tab 4 Select Multi Purpose...

Page 63: ...menu select Print 4 Select Paper Feed from the panel menu 5 Select All pages From and then select Multi Purpose Tray 6 Start printing Mac PCL Printer Driver C824 Only 1 From the File menu select Page...

Page 64: ...t tray 1 on the rear side of the machine is closed While the rear output tray is open paper is always output to the rear output tray Using the Rear Output Tray Use rear output tray when printing on en...

Page 65: ...65 4 Print 2 Unfold the paper support 3 Open the sub support...

Page 66: ...on the computer For Windows 1 Open the Printer folder 2 Right click the printer icon and then select See what s printing 3 Select the file name you want to cancel printing 4 Press the Delete key on th...

Page 67: ...Auto Power Off Setting the Time Before Entering the Auto Power Off Mode This section describes the energy saving function of the printer Two power save modes called Power Save Mode and Sleep Mode help...

Page 68: ...n the Sleep Mode the POWER SAVE button blinks If an error has occurred the printer does not enter Sleep mode The time that elapses before entering the Sleep Mode is 15 minutes by factory default How t...

Page 69: ...yed press the ON LINE button 1 Press the Fn key on the operator panel 2 Enter 2 0 0 using the numeric keypad and then press the ENTER button 3 Press the scroll button or to specify the time and then p...

Page 70: ...s the ENTER button Available values are as follows The factory default setting is 15 minutes 1 minute 2 minutes 3 minutes 4 minutes 5 minutes 10 minutes 15 minutes 30 minutes 60 minutes For C824 60 mi...

Page 71: ...f The machine does not automatically turn off in the following case In the factory default the machine does not enter the auto power off mode while connecting to the network wired Wireless When an err...

Page 72: ...pears If the message is not displayed press the ON LINE button 1 Press the Fn key on the operator panel 2 Enter 2 0 2 using the numeric keypad and then press the ENTER button 3 Press the scroll button...

Page 73: ...follows COLOR Either of Cyan C Magenta M Yellow Y or Black K TRAY Either of Tray1 Tray2 Tray3 Tray4 Tray5 or MP Tray COVER Either of front cover or top cover output tray CODE A code number displayed...

Page 74: ...ton when the message is not displayed the display screen does not show a remedy If a search keyword is displayed open the app on your smartphone or visit the Oki Data website and enter the keyword und...

Page 75: ...g with the toner sensor of the indicated color or the image drum is not installed correctly Install the toner cartridge or image drum of the indicated color correctly If the error occurred in Yellow Y...

Page 76: ...e Press ONLINE Button There is something wrong in the NFC unit Functions related to the NFC are not available Turn off the machine and then back on If the same error occurs contact your dealer To hide...

Page 77: ...n XXX Decode error occurred Press ONLINE Button Indicates that an error has occurred during analysis of image data input from an external source This appears when an error has occurred during analysis...

Page 78: ...ng messages displayed on the operator panel Please wait Message Error code Indicato r Cause Solution Power Off On Message Data Received OK Updating messages displayed on the operator panel is complete...

Page 79: ...Message Error code Indicato r Cause Solution Paper jam occurred Paper remained in NUM place s Remove the paper Press Help for details 632 633 634 635 Blinks A paper jam has occurred and paper remains...

Page 80: ...67 Blinks The image drum indicated on the screen reaches its lifetime Replace the image drum with a new one Pressing ONLINE button can resume printing for a while Replace with a new one as soon as pos...

Page 81: ...rinter is hot Remove any objects blocking the ventilation holes on the printer and restart the printer If the same error is displayed again contact your dealer 166 04 Blinks The inside of the printer...

Page 82: ...nnnnnnn Fatal 002 011 F0C F0D FFE FFF Blinks A fatal error occurred on the printer Contact your dealer and tell them the number in the error message and how the machine works The error code is display...

Page 83: ...390 637 Error Code 391 392 393 394 632 633 634 A paper jam has occurred around the duplex unit 1 Take out the duplex unit 1 by pulling it upward while holding the center recess on the back of the mac...

Page 84: ...ns pull it out gently and close the cover 5 Replace the duplex unit 1 into the machine Task is complete A paper jam has occurred around the front cover 1 Insert your finger into the recess on the righ...

Page 85: ...is invisible check the innermost part of the printer 5 Check if paper remains in the duplex unit If jammed paper remains pull it out gently Check the back side of the duplex unit and remove jammed pap...

Page 86: ...ess on the right side of the machine and pull the front cover open lever 1 to open the front cover 2 forward 2 Remove the jammed paper gently in the direction of the arrow if an edge of jammed paper c...

Page 87: ...your finger into the recess on the right side of the machine and pull the front cover open lever 1 to open the front cover 2 forward 2 Press the open button 3 and open the output tray 4 3 Remove all f...

Page 88: ...jammed paper gently to the rear of the machine the direction of the arrow if an edge of jammed paper can be seen Pull out the jammed paper gently while lifting the release levers 5 on the fuser unit i...

Page 89: ...ling the image drum the green cylinder because it is fragile 7 Close the output tray 4 by pushing the center of the cover firmly 8 Close the front cover 2 The front cover cannot be closed if the outpu...

Page 90: ...inger into the recess on the right side of the machine and pull the front cover open lever 1 to open the front cover 2 forward 2 Press the open button 3 and open the output tray 4 3 Remove all four im...

Page 91: ...image drum the green cylinder because it is fragile 4 Cover the removed image drums with paper so that the image drums are not exposed to light 5 Remove the jammed paper remaining inside of the unit...

Page 92: ...levers 7 on the fuser unit and pull out the jammed paper forward gently If paper is pulled out towards the rear this may result in soiled prints 9 If jammed paper remains in the machine hold the both...

Page 93: ...drums into the machine carefully Use extra care when handling the image drum the green cylinder because it is fragile 13 Close the output tray 4 by pushing the center of the cover firmly 14 Close the...

Page 94: ...cess on the right side of the machine and pull the front cover open lever 2 to open the front cover 3 forward 3 Remove the jammed paper gently by pulling the edge of paper Do not use force when pullin...

Page 95: ...paper jams occur frequently clean the paper feed rollers For details refer to Cleaning This procedure uses Tray 1 as an example 1 Gently pull out from the machine the paper cassette 1 for which an er...

Page 96: ...k into the machine Open and close the front cover to clear the error 4 Insert your finger into the recess on the right side of the machine and pull the front cover open lever 2 to open the front cover...

Page 97: ...y an application contact the manufacturer of the application General Causes Common to Windows and Mac For Windows Unable to Print from a Computer Cause Solution Reference The machine is in Sleep mode...

Page 98: ...a wired network set Wired for Network Setup to Enable Connecting a LAN Cable Cause Solution Reference The IP address is incorrect Check that the same IP address is set for the machine and the machine...

Page 99: ...subnet the communication may be unstable Enabling Default Gateway is set to Wired To communicate with a device out of the segment using the wireless LAN press the scroll buttonon on the operator panel...

Page 100: ...select See print jobs In the dialog select the Printer menu and then clear the check of Use Printer Offline A switch buffer extension cable or USB hub is used When using a USB cable directly connect...

Page 101: ...are Fading Vertically Paper feeding direction Printed Images are Light White Spots and Lines Appear Dew Condensation Appears on Printed Paper Vertical Lines Appear Paper feeding direction Horizontal...

Page 102: ...ner Low or Toner Empty Replace with new Toner Cartridge appears replace the toner cartridge Replacing the Toner Cartridge The light shielding film of the image drum is dirty Wipe the light shielding f...

Page 103: ...amp Use paper stored under proper temperature and humidity conditions Loading Paper Supported Paper The paper is unsuitable Use recommended paper Loading Paper Supported Paper The paper is unsuitable...

Page 104: ...per Cause Solution Reference The paper is damp Use paper stored under proper temperature and humidity conditions Loading Paper Supported Paper The machine is printing when the temperature and humidity...

Page 105: ...ed or dirty Replace the fuser unit Replacing the Fuser Unit If the interval of lines or spots are approximately 50 mm 2 inches some parts inside of the belt unit are broken Replace the belt unit Repla...

Page 106: ...pported Paper The toner is low If Toner Low or Toner Empty Replace with new Toner Cartridge appears replace the toner cartridge Replacing the Toner Cartridge The Periphery of Characters is Smudged Cau...

Page 107: ...is Rubbed Cause Solution Reference The settings of the media type and weight are incorrect Press the scroll button or select Menus Tray Configuration the paper tray you are using and then select the...

Page 108: ...dia Weight Loading Paper Supported Paper Black or White Dots Appear Cause Solution Reference The paper is unsuitable Use recommended paper If a lot of paper dust attaches to paper separate paper sheet...

Page 109: ...er is damp Replace the damp paper with new paper Loading Paper Supported Paper The paper is unsuitable Use recommended paper Loading Paper Supported Paper The Entire Page is Printed Black Cause Soluti...

Page 110: ...ion may occur in the machine To check if the machine can print alone print a menu map If the menu map cannot be printed correctly contact your dealer Test Printing from the Printer White Patches Appea...

Page 111: ...iate paper for the machine Loading Paper Supported Paper The paper is damp or has a static charge Use paper stored under proper temperature and humidity conditions Loading Paper Supported Paper The pa...

Page 112: ...Paper The paper is light Use heavier paper There are nearly solid fill on the leading edge of the paper Insert a margin into the leading edge of the paper For duplex printing insert a margin into the...

Page 113: ...the output tray and front cover cannot be closed Replacing the Belt Unit The machine does not start printing An error is displayed Check the error code and then follow the on screen instructions Error...

Page 114: ...resolution on the printer driver All pages are not printed The WSD port is used Change the print port to Standard TCP IP Port Symptom Cause Solution Reference Printing search printer or settings are...

Page 115: ...es not open The IP address is incorrect Check the IP address to the machine and then enter proper value Open the Web Page of This Machine Advanced Manual The LAN cable is disconnected Make sure that t...

Page 116: ...ng Moving This Machine Transporting This Machine Before the printer disposal Deleting a Printer Driver Updating the Software Updating the Firmware This chapter explains how to replace consumables and...

Page 117: ...ting in fire or burns Do not vacuum spilled toner with an electric vacuum cleaner Vacuuming spilled toner with an electric vacuum cleaner may result in ignition due to sparks from electric contacts or...

Page 118: ...after more than one year following breaking the seal If you replace the toner cartridge image drum while it is being used the amount of toner used will not be counted normally By opening and closing t...

Page 119: ...e toward you until its top aligns on the mark to detach the toner cartridge from the image drum 4 Lift the toner cartridge 4 from the right side and remove it from the machine When toner powder drops...

Page 120: ...e before setting the new cartridge 8 While pressing the toner cartridge turn the toner cartridge lock lever blue 3 backward until its to aligns on the mark and lock the toner cartridge to the image dr...

Page 121: ...tions or instructions of your local government When replacing only the K toner cartridge refer to For K black Toner Cartridge Only 1 Prepare new toner cartridges 2 Insert your finger into the recess o...

Page 122: ...toner cartridge toward you until its top align on the mark to detach the toner cartridge from the image drum 6 Lift the toner cartridge 6 from right side and remove it from the machine Burns may resul...

Page 123: ...o take off the tape from the toner cartridge before setting Peel off the tape before setting the new cartridge 10 While pressing the toner cartridge turn the toner cartridge lock lever blue 5 backward...

Page 124: ...er simplex printing the estimated replacement cycle of an image drum is approximately 30 000 pages This estimation assumes the standard use condition three pages are printed at a time Printing one pag...

Page 125: ...ices for problems caused by the use of consumables other than Oki data genuine consumables are incurred regardless of the warranty or in the maintenance contract Although use of non genuine consumable...

Page 126: ...ge toward you until its top align on the mark while pressing the toner cartridge 7 Lift the toner cartridge 7 from the right side and remove it from the image drum 8 Unpack a new image drum and place...

Page 127: ...e mark while pressing the toner cartridge to attach the toner cartridge to the image drum You will hear a click when it is locked in place 13 Check the label color of the new image drum and place the...

Page 128: ...strong light approximately 1 500 lux or more Do not leave the image drum for 5 minutes or more even under room light Use Oki Data genuine consumables to ensure optimum performance of the products Char...

Page 129: ...drum the green cylinder because it is fragile Image drums are not locked on the printer They can be removed just by lifting 6 Unpack a new image drum and place it on the flat surface 7 Remove the prot...

Page 130: ...protrusion 9 on the image drum so that the toner cartridge and image drum color label align Then insert the right side gently into place 12 Turn the toner cartridge lock lever blue 10 of the toner car...

Page 131: ...ter of the output tray 4 firmly 15 Close the front cover 2 The front cover cannot be closed if the output tray is not closed securely 16 Please recycle image drums and toner cartridges If you must dis...

Page 132: ...d quickly replace with a new fuser unit Although printing is resumed by opening and closing the front cover this may cause a malfunction or cause print quality to deteriorate Also after a fixed time h...

Page 133: ...n button 3 and open the output tray 4 4 Take all the four image drums out of the machine and then place them on a flat surface Use extra care when handling the image drum the green cylinder because it...

Page 134: ...arrow to unlock 7 Remove the belt unit by holding the blue handle 6 8 Hold the blue handle of a new belt unit support the bottom of the belt unit and insert the axis of the belt unit into the groove 7...

Page 135: ...nobs and lock the belt unit If you do not turn the knobs to lock the belt unit image drum cannot be attached properly 11 Return all the four image drums to the machine Use extra care when handling the...

Page 136: ...an print with the fuser unit depends on how you use it When Change Fuser Unit is displayed and printing is stopped quickly replace with a new fuser unit Although printing is resumed by opening and clo...

Page 137: ...output tray 4 4 Pull forward the left locking lever 5 of the fuser unit to unlock 5 Hold the fuser unit handle 6 and take out the fuser unit from the machine Possible to get burned Since the fuser uni...

Page 138: ...gh the handle of the fuser unit 7 Pull the protective sheet in the direction of the arrow to remove 8 Pull forward the left locking lever 5 of the fuser unit 9 Hold the handle and place the new fuser...

Page 139: ...12 Close the front cover 2 The front cover cannot be closed if the output tray is not closed securely 13 Please recycle fuser unit If you must dispose of a fuser unit put it in a plastic bag or simila...

Page 140: ...g the Resist Roller Do not use benzine thinners or alcohol because they may damage the plastic parts of the machine Do not lubricate the machine with oil Do not apply oil 1 Turn off the machine Turnin...

Page 141: ...ht or strong light approximately 1 500 lux or more Even under room lighting do not leave the image drum for 5 minutes or more 1 Insert your finger into the recess on the right side of the machine and...

Page 142: ...t be closed if the output tray is not closed securely If the light shielding film of the image drum becomes dirty wipe the film by following the procedures below 1 Insert your finger into the recess o...

Page 143: ...elding film 5 with soft tissue paper 5 Put the image drum back to the printer 6 Close the output tray by pushing the center of the output tray firmly 7 Close the front cover 2 The front cover cannot b...

Page 144: ...the paper cassette 1 2 Wipe the two paper feed rollers 2 inside the machine with a wet cloth that has been wrung out well 3 Remove paper loaded in the paper cassette 4 Wipe the paper feed roller 3 on...

Page 145: ...press the right arm 3 inward then unlock the tab 4 3 In the same manner slightly lifting the MP tray press the left arm inward then unlock the tab 4 Open the paper set cover 5 until it touches to the...

Page 146: ...While pressing the right arm 3 on the MP tray 2 inward slightly lift the MP tray 2 and hook the tab 4 Closing the MP tray without putting the tab back in place may crack the paper set cover Be sure t...

Page 147: ...lers in the following steps when they are dirty 1 Open the front cover 2 Wipe the metal part 1 and 2 of the resist roller which can be seen in front with a soft tissue paper When cleaning the metal pa...

Page 148: ...he machine 2 Unplug all the cables Power cord LAN or USB cable 3 Remove any paper from the paper cassettes 4 Lift up this machine and then move it to a new location Injury may result Lift this machine...

Page 149: ...the time of purchase 1 Turn off the machine Turning Off the Power 2 Unplug all the cables Power cord LAN or USB cable 3 Remove any paper from the paper cassettes 4 Insert your finger into the recess...

Page 150: ...f toner cartridge and image drums and set it on a flat surface covered with sheets of newspaper etc 7 Secure the toner cartridge with plastic tape 5 on each image drum 8 Put the 4 image drums toner ca...

Page 151: ...Lift the printer up and detach from the additional trays Pack the printer unit and optional additional tray units separately and transport them 13 Attach the packing material to the machine and put i...

Page 152: ...scroll button several times to select Others Setup and press the ENTER button 4 Press the scroll button several times to select Erase Privacy Data and press the ENTER button 5 Once Are You Sure is dis...

Page 153: ...n a message is displayed to ask you to select whether you want to remove the printer driver only or the printer driver and package from the system select to remove the driver and package and then clic...

Page 154: ...rinter driver Monitoring Tool is automatically installed 2 When updatable software is detected the following screen is displayed 3 If there is updatable software Update recommended is displayed in the...

Page 155: ...155 7 Maintenance 8 When The latest software is displayed in the Status field of the installed software the software update is complete 9 Quit Monitoring Tool...

Page 156: ...Now the firmware is ready to update When a printer with updatable firmware is detected Monitoring Tool is displayed on the computer Update the firmware Register the printer to the Monitoring Tool 1 S...

Page 157: ...e printer on the Administrator password authentication screen click OK 4 The latest firmware is downloaded from the Oki Data website and the firmware of the printer is updated Please do not turn the p...

Page 158: ...8 Appendix How to open printer folder Menu List of the Operator Panel Options Specifications...

Page 159: ...1 Click Start and display the application list 2 Select Windows System Control Panel View devices and printers For Windows Server 2012 R2 Windows Server 2016 Select Control Panel View devices and pri...

Page 160: ...endix Menu List of the Operator Panel Numbers following the Fn in the menu items indicate the function numbers menu_tree_en 650KB Adobe Reader must be installed on your computer to view the manual in...

Page 161: ...Ethernet or USB cable before installing options Installing options while your printer is turned on may damage your printer and options After installing options set the option settings with a printer d...

Page 162: ...he Ethernet or USB cable Installing options while your printer is turned on may damage your printer and duplex unit 2 Remove the two strips of protective tape 3 Remove blind cover of the printer back...

Page 163: ...connect wireless devices computers tablets smartphones etc to the machine without using a wireless LAN access point The wireless LAN module is equipped on the C834 and C844 models by the factory defau...

Page 164: ...oot Menu is displayed release your finger and press the ENTER button again 8 Enter the administrator password using the numeric 0 9 keys and press the ENTER button The factory default administrator pa...

Page 165: ...ster base Do not dispose of them and keep them for future use 1 Turn off your printer and then unplug the AC cord and the Ethernet or USB cable If you mount the printer with a cable plugged you may ca...

Page 166: ...dditional tray unit and the caster base connected 4 When adding on a further additional tray unit gently place the unit on top so that the protrusions at the rear of the additional tray unit to be att...

Page 167: ...nal tray unit is aligned with the back of the printer unit 7 When attaching the additional tray unit connect the printer unit and the additional tray unit 8 Lock the casters 9 When three or more addit...

Page 168: ...and the unplugged cables and then turn on the machine After the additional tray unit is mounted you need to check the mounting status and make the settings of the printer driver Refer to When Adding O...

Page 169: ...ter Base 1 Turn the machine off and then unplug the power cord and all the cables Be sure to turn the machine off and unplug the power cord and all the cables before installing the additional tray Ins...

Page 170: ...170 8 Appendix 4 Align the back of the bottom layer additional tray unit with the protrusion on the back of the additional tray to be mounted and gently pile them up 5 Connect the additional tray unit...

Page 171: ...ray unit is aligned with the back of the printer unit 7 Join the additional tray unit to the printer unit 8 Lock the casters 9 When three or more additional tray units have been attached pull out the...

Page 172: ...the machine from the behind while the paper cassette is pulled out 10 Plug the power cord and the unplugged cables How to Use the Tip over You can find two tip over protection tools on the left and r...

Page 173: ...ollowing conditions the information about the installed option is automatically obtained not requiring you to set the printer driver If the USB connection or the network connection with Bonjour is use...

Page 174: ...and then select Printer properties 3 Select the Device Settings tab 4 For network connection select Get installed options automatically for Installable Options and then click Setup For USB connection...

Page 175: ...175 8 Appendix 5 Select the total number of trays for Available Tray and then click OK...

Page 176: ...N35301B 680 W Idle 13 W Peak N35300A N35301A 1118 W N35300B N35301B 1118 W Power save mode Less than 11 W Sleep mode N35300A N35301A Less than 0 7 W N35300B N35301B 1 0W Auto power off mode N35300A N...

Page 177: ...8 17 0 inches L Additional tray unit optional 148 297 mm W 182 431 8 mm L 4 1 11 7 inches W 7 2 17 0 inches L MP tray 55 297 mm W 90 1321 mm L 2 2 11 7 inches W 3 5 52 inches L Duplex 127 297 mm W 18...

Page 178: ...to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures Reorient...

Page 179: ...radiation exposure limits set forth for an uncontrolled environment and meets the FCC radio frequency RF Exposure Guidelines and RSS 102 of the IC radio frequency RF Exposure rules This equipment sho...

Page 180: ...180 8 Appendix When options are attached...

Page 181: ...Address Subnet Mask Gateway Address MAC Address NIC Program Version Web Remote Version IPv6 Address Local IPv6 Address Stateful Address Firmware Version Wireless Infrastructure SSID Security State Ban...

Page 182: ...n Fn31 Y Dimension Fn32 Media Type Fn33 Media Weight Fn34 Legal Paper Other Size Tray4 Config Paper Size Fn40 X Dimension Fn41 Y Dimension Fn42 Media Type Fn43 Media Weight Fn44 Legal Paper Other Size...

Page 183: ...per Care Mode Network Setup Enabling Default Gateway Wired TCP IP NetBIOS over TCP IP Address Set IPv4 Address Subnet Mask Gateway Address DHCPv6 Web Telnet FTP IPSec SNMP Network Scale Gigabit Networ...

Page 184: ...on Left Margin Fit to Letter Text Height Continuous Paper Mode EPSON FX Setup Character Pitch Character Set Symbol Set Letter O Style Zero Character Line Pitch White Page Skip CR Function Line Length...

Page 185: ...e Process Setup Custom Process Check Cyan Drum Check Magenta Drum Check Yellow Drum Job Cancel Setup Cancel Key Behavior Inquiry Display Focus Position Display Timeout Near Life Setup Drum Near Life T...

Page 186: ...ype WPA Pre Shared Key Execute Wireless reconnection Wireless AP Mode Automatic Setup PushButton Manual Setup Connection Setting SSID Password IPv4 Address Execute AP Mode User Setting Wireless Module...

Page 187: ...oki com ch Polska www oki com pl esk www oki com cz Slovensk www oki com sk Magyarorsz g www oki com hu www oki com ru www oki com ua T rkiye ye www oki com tr Serbia www oki com rs Croatia www oki co...

Page 188: ...47095302EE Rev3...

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