Oki C942dp C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng
Oki C942dp Manual
View all Oki C942dp manuals
Add to My Manuals
Save this manual to your list of manuals |
Oki C942dp manual content summary:
- Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 1
User's Manual Troubleshooting/Daily Maintenance Manual Read for any points that are not understood, or for maintenance 1 Troubleshooting 2 Maintenance Index C911 C931 C941 C942 ES9411 ES9431 ES9541 ES9542 Pro9431 Pro9541 Pro9542 - Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 2
and remaining service life w troubleshooting method if an error message is displayed. This manual also explains daily maintenance such as now to replace consumables and maintenance units, and cleaning, etc. Using C941/C942/ES9541/ES9542/Pro9541/Pro9542 Separate Volume Spot Color Guide This guide - Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 3
zzReading the Manual Symbols Note zz These are cautions and restrictions for the correct operation of the device. Make sure to read to avoid misoperation. Memo zz Knowledge - Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 4
Illustrations The printer illustrations used herein show the C931 model unless otherwise specified. Illustrations may differ from the actual product. Screens The images of the control panel and PC used herein are examples. The images may differ from actual products and screens. - 4 - - Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 5
® Windows® 7 64-bit Edition operating system → Windows 7 (64-bit Edition) Microsoft® Windows® 7 operating system → Windows 7 Mac OS X10.3.9 or later → Mac OS X The manuals enclosed with the printer use as examples Windows 7 in the case of Windows, and OS X 10.8 in the case of Mac OS X unless - Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 6
Configuration 2 Reading the Manual 3 Symbols...3 Keys, Buttons, and Symbols 3 Illustrations...4 Screens...4 Inscriptions...5 1 Troubleshooting 9 Troubleshooting solutions procedure 10 Paper jams 11 Checking messages (if a paper jam occurs 11 Removing jammed paper 14 If paper messages are - Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 7
Cleaning the Transfer Roller Unit and Paper Transfer Path 96 Cleaning the Pinch Roller 99 Moving and shipping the device 100 Moving the device 100 Shipping the device 100 Index 102 - 7 - - Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 8
Memo - 8 - - Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 9
Troubleshooting Maintenance Index 1 Troubleshooting 1 2 Troubleshooting solutions procedure...... 10 Paper jams 11 If paper messages are displayed 36 If replace consumables messages are displayed 38 If other messages are displayed 40 Printing Troubles 46 - 9 - - Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 10
Troubleshooting Maintenance Troubleshooting solutions procedure zzTroubleshooting solutions procedure 1 This chapter describes the procedure for solving the problems occurred while using the printer. If you are unable to solve the problem with this procedure, contact your dealer. Is error message - Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 11
blink. 2 When "Please see HELP for details" is shown in the message, pressing the [HELP] button in the operation panel will show the troubleshooting procedure, and you can easily solve the process according to the guidance. For details, refer to "Operating the Help screen"(P.13). Maintenance Index - Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 12
Troubleshooting Maintenance Index Paper jams Error code 1 Category Message displayed on the liquid crystal panel Location of displayed after Reference paper jam pressing the pages [HELP] - Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 13
jams 2 Press the scroll button . The next page will appear, and solution procedure for paper jam 1 and corresponding animation will be displayed. Troubleshooting 2 Maintenance 1 Press the [HELP] button. The error code will appear and the condition of paper jam will be displayed. Memo zz - Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 14
Troubleshooting Maintenance Paper jams Removing jammed paper 1 Removing paper jam in the vicinity of Right Side Cover Error code: 380, 390, 637 2 1 If paper is set - Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 15
paper supporter ( ) towards yourself. 7 Set the print side for the removed paper to face up. Paper jams Removing paper jam in the exit unit 1 Error code: 381, 638, 639 Troubleshooting CAUTION Possible pull out the exit unit. Maintenance Index 8 Match the paper guide with the paper. - 15 - - Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 16
Troubleshooting Maintenance Paper jams 2 Check inside of the printer, and slowly remove the remaining paper. 1 5 Push down the fuser unit's jam release lever (blue). 2 3 If there - Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 17
of the decal unit to the left, and remove the paper. 1 Note zz Be careful not to drop the thumbscrew into the device when removing. Troubleshooting 2 Maintenance Index - 17 - - Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 18
Troubleshooting Maintenance Paper jams 11 Return the decal unit to its original position, and fix it with two 1 thumbscrews. Note zz Be careful not to drop - Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 19
15 Lift the opener ( ), and open the right side cover. 17 Close the right side cover. Paper jams 1 Troubleshooting Maintenance 2 18 Open the MP tray. Index 16 Slowly remove the remaining paper. 19 Pull the set leve ( ) on the right side of the paper supporter ( ) towards yourself. - 19 - - Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 20
Troubleshooting Maintenance Paper jams 20 Match the paper guide with the paper. 1 2 21 Set the print side for the removed paper to face up. Removing paper jam in the vicinity of the fuser unit - Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 21
(blue). Paper jams 5 If there is no remaining paper in the fuser unit then pull up the fuser unit's lock lever (blue). 1 Troubleshooting 2 Maintenance 3 Ensure to slowly pull the remaining paper towards the printer body (opposite to the paper feeding direction). 6 Hold the fuser unit handle - Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 22
Troubleshooting Maintenance Paper jams 8 If the paper winds around the decal roller, remove the decal unit by turning the thumbscrews at both ends of the decal 1 - Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 23
jams Removing paper from the 2-Sided Printing unit 1 Pull out the 2-Sided Printing unit, lift it up a little with both hands, and remove 1 it. Troubleshooting 2 Maintenance 12 Put the exit unit back into the printer. Note zz Do not pull the 2-Sided Printing unit out in one shot. 2-Sided - Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 24
Troubleshooting Paper jams 3 Put the 2-Sided Printing unit back into the printer. 1 2 Removing paper from the vicinity of Tray Side Cover Error code: 391, 392, 393, - Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 25
the Tray 1 side cover. Paper jams Removing paper from the vicinity of the 2-Sided Printing unit 1 Error code: 370, 371, 373, 640, 641, 642 Troubleshooting 1 Pull out the 2-Sided Printing unit, lift it up a little with both hands, and remove it. When you cannot see the jammed 2 paper in the - Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 26
Troubleshooting Maintenance Paper jams 3 Put the 2-Sided Printing unit back into the printer. 1 4 Lift opener ( ) of the exit unit, and pull out the exit unit. 2 5 Check inside of the printer, and slowly remove the remaining paper. Index - 26 - - Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 27
of the decal unit to the left, and remove the paper. 1 Note zz Be careful not to drop the thumbscrew into the device when removing. Troubleshooting 2 Maintenance 7 Hold the fuser unit handle with both hands, and remove it onto a flat surface. Index - 27 - - Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 28
Troubleshooting Paper jams 9 Return the decal unit to its original position, and fix it with two 1 thumbscrews. Note zz Be careful not to drop the thumbscrew into the device when fixing. 10 Hold the knob, pull up the transfer roller unit, lift the paper guide, and remove the remaining paper. - Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 29
11 Hold the knob, push down the transfer roller unit. Paper jams 13 Push down the fuser unit's lock lever (blue). 1 Troubleshooting 2 Maintenance 12 Hold the fuser unit handle with both hands, and set to the exit unit. 14 Put the exit unit back into the printer. Index - 29 - - Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 30
Troubleshooting Maintenance Paper jams Removing paper from the vicinity of the lower side of 1 2-Sided Printing unit Error code: 375, 650 1 Pull out the 2-Sided Printing - Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 31
4 Lift opener ( ) of the exit unit, and remove the remaining paper. Paper jams 5 If the paper tip is not visible, pull up the fuser unit's lock lever (blue). 1 Troubleshooting Maintenance 2 6 Hold the fuser unit handle with both hands, and remove it onto a flat surface. Index - 31 - - Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 32
Troubleshooting Paper jams 7 If the paper winds around the decal roller, remove the decal unit by turning the thumbscrews at both ends of the decal 1 unit - Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 33
9 Hold the knob, pull up the transfer roller unit, lift the paper guide, and remove the remaining paper. Paper jams 10 Hold the knob, push down the transfer roller unit. 1 Troubleshooting Maintenance 2 11 Hold the fuser unit handle with both hands, and set to the exit unit. Index 12 Push down - Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 34
Troubleshooting Maintenance Paper jams 13 Put the exit unit back into the printer. 1 2 Removing paper from the vicinity of Left Side Cover Error code: 384, 651 1 Open the left side cover. 2 Slowly remove the remaining paper. 3 Close the left side cover. Index - 34 - - Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 35
very frequently. zzIs the feeding paper roller dirty? ("Cleaning feed rollers"(P.93)) zzIs the paper guide set correctly? (Refer to "Setting the Paper in the Basic") zzIs the paper set after flipping of paper remaining inside the printer? Paper jams 1 2 Maintenance Troubleshooting Index - 35 - - Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 36
. --[MEDIA_TYPE]: Paper type is displayed. Category Message displayed on the liquid crystal panel Error code lamp Causes and Troubleshooting Load paper Please change [TRAY] paper 461 Ensure [MEDIA_SIZE], [MEDIA_TYPE] 462 is installed. 463 If printing fails, cancel and - Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 37
paper in the tray may exceed the maximum limit, or the paper tray may 1 need to be reset. Please remove paper from the tray shown. Troubleshooting Check Paper in [TRAY] Paper Thick Error Please see HELP for details 323 Blinking In the tray shown in the message, 324 paper of a different - Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 38
will appear only for C941/ES9541/Pro9541. Category Message displayed on the liquid crystal panel Error code lamp Causes and Troubleshooting Reference pages Toner Cartridge Install Toner Black Please see HELP for details 4103 Blinking Black Toner Empty Press the [HELP] button - Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 39
Error code lamp Causes and Troubleshooting Reference pages Troubleshooting Image Drum Install [COLOR] New Image consumables - detected in your product, but you must Go to User Manual "Trouble accept the risks of using non- Shooting" to restore operation genuine consumables - Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 40
solution procedure, and you can easily solve the problem according to the guidance. For details, refer to 5405 480 484 lamp Causes and Troubleshooting Blinking A fatal error has occurred. If spot color printing error has 459 occurred. Data will be erased. Check the paper and - Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 41
Close Cover [COVER] 311 Blinking The cover shown in the message is - 312 open. 1 Please see HELP for details 313 Close the cover. Troubleshooting 314 315 585 588 589 Non Genuine Image Drum 6840 Blinking The image drum is not intended for - [COLOR] Please see HELP for details 6841 - Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 42
Maintenance Index If other messages are displayed Message displayed on the liquid crystal panel Error code lamp Causes and Troubleshooting Reference pages 1 Incompatible Toner [COLOR] 5540 Blinking Toner cartridge is not intended for - 5541 use with this printer model - Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 43
fuser unit is not installed 320 correctly. - 1 Please see HELP for details Install the fuser unit correctly. Troubleshooting Receiving Data Timeout 519 Blinking A data receipt timeout occurred. [Advanced] > Press OK Button for Restoration Increase the length of timeout print [List of - Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 44
Maintenance Index If other messages are displayed Message displayed on the liquid crystal panel Error code lamp Causes and Troubleshooting Reference pages 1 Spot Color Duct has not been installed 676 Blinking Spot Color Duct has not been installed. Please install - Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 45
. 1 If network doesn't work, please try firmware update over USB Troubleshooting Open Stacker 580 Blinking Face up stacker is closed. - Face Up . Printing was stopped and the settings, then print again. To turn print data was deleted. off the display, press OK Change the paper, or set - Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 46
Troubleshooting Maintenance Printing Troubles zzPrinting Troubles 1 This section describes the possible troubles that may occur while operating the printer, and their solution procedure. Memo zz If the problem is not solved using the following methods, contact your dealer. zz For problems arising - Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 47
the printing is complete. Printing Troubles Reference pages - 1 - - Troubleshooting Network Connection Problems Common for Windows/Mac OS the computer are matching. zzIf you are using OKI LPR Utility on Windows, check IP address settings in OKI LPR Utility. zzCheck that IP address is not - Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 48
Troubleshooting Printing Troubles Printer Troubles Memo 1 zz If the problem is not solved using the following explanation, contact your dealer. Symptom Cause Troubleshooting is in sleep mode. Print data is not sent. Abnormal code, and follow the instructions displayed on the liquid crystal - Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 49
Troubles Symptom Cause Troubleshooting Reference pages Resonant sound. While temperature inside the Device has not broken down. device has increased, printing Use the device as it is. - 1 is done on a narrow paper or a thick paper. Troubleshooting . Processing of data from other Wait - Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 50
Troubleshooting Maintenance Printing Troubles Printer driver malfunctions 1 Memo zz If the problem is not solved using the following explanation, contact your dealer. zz For problems arising from the applications, contact the application development company. USB Connection Problems 2 For - Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 51
Problems concerning restrictions of OS Printing Troubles Restrictions concerning Windows 7/Windows 8/Windows 8.1/Windows 1 Vista/Windows Server 2008 R2/Windows Server 2008/Windows Server 2012/Windows Server 2012 R2 Troubleshooting Item Symptom Causes and Troubleshooting not supported. The - Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 52
Troubles Print quality is poor 1 Memo zz If the problem is not solved using the following methods, contact your dealer. Symptom Cause Troubleshooting tissue paper. Low toner. Replace the toner cartridge. Paper not supported. Use recommended paper. Reference pages page 87 page 64 page 66 - Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 53
Printing Troubles Symptom Cause Troubleshooting Reference pages The front or rear edge of the paper is page 75 page 66 Basic Basic Border of characters is blurred. LED head is unclean. Paper not supported. Paper is moist. Wipe it with a soft tissue paper. Use recommended paper. Replace with a - Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 54
Maintenance Index Printing Troubles Symptom Cause Troubleshooting Reference pages 1 Rubbing it off will remove the Type and thickness setting of toner. paper is inappropriate. Correct [Media Weight] in the operation panel to - Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 55
dry. Printing Troubles Troubleshooting Reference pages Use paper stored under appropriate temperature and Basic 1 humidity. Troubleshooting Does not appear. Stains are printed. The entire paper is printed black. Paper not supported. In the case of cycle length of about 125 mm, image drum - Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 56
Troubles Symptom 1 Nothing is printed. ? White streaks occur. 2 Cause Troubleshooting Multiple pages were fed in one round of printing. The device might have broken down. Re-set the papers after flipping through. Contact your dealer. Reference pages - - Paper is moist. Paper not supported - Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 57
Troubles Paper feed is poor Memo 1 zz If the problem is not solved using the following methods, Contact your dealer. Troubleshooting Symptom Cause Troubleshooting . Align the paper guide and paper - stopper of the tray with the paper. Or, align the manual feed guide of the MP tray - Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 58
Troubleshooting Printing Troubles When image disturbance occurs 1 If image distortion occurs to the end of printed paper while printing with heavy paper or paper with short feeding length (less than 230 mm), manually change the paper weight according to the paper you are using. If the condition - Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 59
Troubleshooting Maintenance Index 2 Maintenance 1 2 Replacing consumables and maintenance unit 60 Device Maintenance 87 Moving and shipping the device 100 - 59 - - Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 60
Troubleshooting Maintenance Index Replacing consumables and maintenance unit zzReplacing consumables and maintenance unit 1 This section describes the replacement method of consumables and maintenance unit and their lifespan. Consumables and maintenance unit service life Ballpark indicator of - Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 61
printable pages is about 10,000. Troubleshooting Printing quality will decline after about 1 white toner only" in "Separate Volume Spot Color Guide" for spot color printing. zzImage drum (Clear/ feed with 1-sided printing, it will reach its service life after printing about 20,000 pages. When one - Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 62
Troubleshooting Maintenance Index Replacing consumables and maintenance unit When the replacement period is approaching 1 When the replacement period of consumables and maintenance unit approaches, the following - Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 63
. It may scatter toner, because of which people may inhale it, and it may stain clothes and hand. - 63 - Replacing consumables and maintenance unit Troubleshooting ●● Store the used toner cartridge in a bag 1 such that toner does not scatter. ●● If toner is spilled on the floor, wipe it up - Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 64
Troubleshooting Maintenance Replacing consumables and maintenance unit Types of toner cartridge Following toner cartridges can be used with this printer. 1 Item Remarks Toner Cartridge Black Toner - Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 65
and maintenance unit 7 Close the toner replacement cover. 1 Troubleshooting 2 Maintenance Index Note zz Do not drop the toner cartridge "If replace consumables messages are displayed"(P.38) of this manual. 8 Please support recycling of the used toner cartridges. Memo zz When disposing - Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 66
Troubleshooting Maintenance Replacing consumables and maintenance unit Replacing Image Drums 1 Types of image drum Image drums that can be used with this printer are as follows. - Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 67
the lower side (green cylindrical section). Replacing consumables and maintenance unit Note zz Be careful not to touch or scratch the image drum (green cylinder). 1 Troubleshooting 2 Maintenance 5 Remove the new image drum from its packaging. Index 6 Remove the stopper (orange). - 67 - - Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 68
Troubleshooting are displayed"(P.38) of this manual. 9 Please support recycling of the used image drums . Memo zz When disposing of the used image drums in unavoidable circumstances, put it in a plastic bag, and ensure to dispose according to the instructions - Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 69
units 1 Prepare a new belt unit. New transfer roller unit is supplied with the new 3 Remove the waste toner box. 1 belt unit in the same package. Troubleshooting 2 Maintenance [Replacing the Belt Unit] 2 Open the front cover. Index - 69 - - Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 70
Troubleshooting Maintenance Replacing consumables and maintenance unit 4 Push the center lever (blue) to the right. 1 6 Hold the handle and pull out the belt unit, hold the - Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 71
zz Never place the removed belt unit in a vertical direction. Replacing consumables and maintenance unit 8 Unpack the new belt unit from its packaging. 1 Troubleshooting zz Ensure that waste toner does not spill when removing the belt unit. 7 Take out the new belt unit. Note zz Do not touch the - Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 72
Troubleshooting Maintenance Replacing consumables and maintenance unit 10 Raise the belt unit left/right lock lever, rotate the lock lever knob (blue) to the 1 right and - Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 73
pull out the exit unit. Replacing consumables and maintenance unit 16 Hold the transfer roller unit's label part (blue) and remove it. 1 Troubleshooting Maintenance 2 17 Remove transfer roller unit. Index 15 Pull up both tips of the transfer roller unit's lock lever (blue). CAUTION Possible - Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 74
back into the printer. 21 Please support recycling of the used belt unit and transfer roller unit. Memo zz When disposing of the used belt unit and transfer roller unit in uunavoidable circumstances, put them in a plastic bag, and ensure to dispose according to the instructions provided by the local - Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 75
fuser units 1 Prepare a new fuser unit. 2 Lift opener ( ) of the exit unit, and pull out the exit unit. Replacing consumables and maintenance unit Troubleshooting 3 Pull up the fuser unit's lock lever (blue). 1 CAUTION Possible to get burned. Do not touch the fuser unit because it is hot - Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 76
(blue). 8 Put the exit unit back into the printer. 9 Please support recycling of the used fuser units. Memo zz When disposing of the used fuser unit in unavoidable circumstances, put it in a plastic bag, and ensure to dispose according to the instructions provided by the local municipality. - 76 - - Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 77
consumables and maintenance unit Replacing waste toner boxes Replacing waste toner boxes 1 Prepare a new waste toner box. 3 Remove the waste toner box from the printer. 1 Troubleshooting 2 2 Open the front cover. Maintenance Index 4 Remove the new waste toner box from its packaging. - 77 - - Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 78
to the printer. 1 2 6 Close the front cover. 7 Please support recycling of the used toner boxes. Memo zz When disposing of the used waste toner box in unavoidable circumstances, put it in a plastic bag, and ensure to dispose according to the instructions provided by the local municipality. - 78 - - Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 79
Replacing consumables and maintenance unit Replacing paper feed rollers Rough guide of replacing paper feed rollers is about 120,000 pages for each tray. 1 Troubleshooting Replacing paper feed rollers of Tray 1 to Tray 5 There are three types of paper feed rollers. Center is white With gear - Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 80
Troubleshooting Replacing consumables and maintenance unit 5 While expanding the claws of feed rollers ( ) in outside direction, remove 1 them from the axial. Memo zz If the feed - Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 81
Troubleshooting Maintenance Index Replacing consumables and maintenance unit 7 Insert the new feed rollers ( ) in the axial, and firmly insert up to inside. 1 2 8 Similarly, insert the remaining two paper feed rollers ( , ). 9 Check that no paper feed roller is missing. - 81 - - Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 82
switch and start the printer. 12 Please support recycling of the used paper feed rollers. Memo zz When disposing of the used paper feed rollers in unavoidable circumstances, put them in a plastic bag, and ensure to dispose according to the instructions provided by the local municipality. Replacing - Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 83
4 Lift the opener ( ), and open the right side cover. Replacing consumables and maintenance unit 5 While expanding the claws of feed rollers ( ) in outside direction, remove them from the axial. 1 Troubleshooting 2 Maintenance Index - 83 - - Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 84
Troubleshooting Replacing consumables and maintenance unit 6 Lift Section A, release the claws in the direction shown in figure, and remove 1 the paper feed rollers ( ). 7 Pinch the claws ( - Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 85
consumables and maintenance unit 10 Insert the new feed rollers ( ) in the axial, and firmly insert up to inside while rotating them. 1 Troubleshooting Maintenance 2 11 Check that no paper feed roller is missing. 12 Close the right side cover. Index 9 Insert the new paper feed rollers - Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 86
Troubleshooting Replacing consumables and maintenance unit 14 Please support recycling of the used paper feed rollers. 1 Memo zz When disposing of the used paper feed rollers in unavoidable circumstances, put them in a plastic bag, and ensure to dispose according to the instructions provided by - Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 87
Device Maintenance zzDevice Maintenance This section describes the cleaning method of the respective part of the device. 1 Troubleshooting Cleaning device surfaces Cleaning LED heads Items to be prepared: Water or neutral washing agent, soft and dry cotton cloth 2 pieces Note zz Do not - Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 88
Troubleshooting Device Maintenance 3 Open the front cover. 1 Note zz Ensure not to touch or damage the drum. 2 4 Gently lift the handle (blue) upwards, and remove the - Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 89
5 Remove the waste toner box from the printer. Device Maintenance 6 Push the center lever (blue) to the right. 1 Troubleshooting Maintenance 2 7 Rotate the belt unit left/right lock lever knob (blue) to the left, and push the lock lever towards yourself. Index - 89 - - Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 90
Troubleshooting Device Maintenance 8 Hold the handle and pull out the belt unit, hold the left-right label part (blue) 1 and remove the belt unit. zz Never - Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 91
10 Set the belt unit to the printer, and push it in firmly. Device Maintenance 12 Return the center lever (blue) to the left. 1 Troubleshooting Maintenance 2 13 Set the waste toner box on the printer. Index 11 Raise the belt unit left/right lock lever, rotate the lock lever knob ( - Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 92
Troubleshooting Device Maintenance 14 Align the image drum and arrow label (red) of printer, slowly insert in the slot 1 taking care that your hand does not - Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 93
watch, bracelet, etc. 2 Press and hold the power switch for approximately 1s to switch off the power supply. 4 Pull out Tray 1. Device Maintenance 1 Troubleshooting Maintenance 2 5 Wipe off the dirt on paper feed rollers (3 places) with the moist soft cloth. Memo zz When it is difficult to wipe - Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 94
Troubleshooting Device Maintenance Cleaning the paper feed rollers of Multi-Purpose Tray 1 1 Press and hold the power switch for approximately 1s to switch off the power - Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 95
them from the axial. Device Maintenance 7 Wipe off the dirt on paper feed rollers (2 places) and on separator with the moist soft cloth. 1 Troubleshooting Maintenance 2 8 Insert the feed rollers ( ) in the axial, and firmly insert up to inside while rotating them. 9 Close the right side cover - Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 96
Troubleshooting Maintenance Device Maintenance Cleaning the Transfer Roller Unit and Paper Transfer Path 1 If the front or rear edge of the output paper becomes dirty frequently, - Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 97
fuser unit by holding its handle with your hands. Device Maintenance 8 Wipe the dirt off the paper transfer path with a soft tissue paper. 1 Troubleshooting 2 Maintenance 6 Raise the lock levers (blue) at both ends of the transfer roller unit. 9 Wipe the dirt off the transfer roller unit with - Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 98
Troubleshooting Maintenance Device Maintenance 11 Push down the lock levers (blue) at both ends. 1 14 Put the exit unit back into the printer. 2 12 Set the - Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 99
Cleaning the Pinch Roller If foreign matter is found on the pinch roller, remove the dirt with a soft cloth or tissue paper. Sticking foreign matter can be easily removed if cleaned after printing. Device Maintenance 1 2 Troubleshooting Maintenance Index - 99 - - Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 100
Troubleshooting Maintenance Moving and shipping the device zzMoving and shipping the device 1 This section describes about transporting or moving the device. Moving the device Shipping the - Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 101
/Pro9541). Moving and shipping the device 7 Apply an adhesive tape to hold the toner cartridge lever in the raised condition. 1 Troubleshooting 2 Maintenance 6 Raise the toner cartridge detection levers. 8 Repeat Steps 5 and 6 for all toner cartridge detection levers. 9 Close the toner - Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 102
1 Index Troubleshooting Maintenance 2 Index - 102 - - Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 103
94 Paper feed roller (tray 93 Paper Transfer Path 87 Pinch Roller 96, 99 Transfer Roller Unit 96 Consumables 60 D Device trouble 13 E Exit unit 15 F Fuser unit 20, 58, 60, 62, 75 I Image drum 60, 62, 66 Paper Transfer Path 96 Pinch Roller 99 Index Maintenance Troubleshooting - 103 - - Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 104
unit 69 Waste toner box 77 Replacement timing 62 S Service life 60 T Toner cartridge 60, 62, 64 Transfer roller unit 69 Transfer Roller Unit 96 Transportation and movement 100 Tray side cover 24 Troubleshooting 10 Troubleshooting procedure 10 U USB connection 46 Basic cause 52 - Oki C942dp | C911dn/C931dn/C931DP/C941dn/C941DP/C942 Troubleshooting Guide - Eng - Page 105
Oki Data Corporation 4-11-22 Shibaura, Minato-ku,Tokyo 108-8551, Japan www.okiprintingsolutions.com August 2015 45582802EE Rev6
Read for any points that
are not understood, or
for maintenance
1
Troubleshooting
2
Maintenance
Index
User’s Manual
Troubleshooting/Daily
Maintenance Manual
C911
C931
C941
C942
ES9411
ES9431
ES9541
ES9542
Pro9431
Pro9541
Pro9542