Manuale d’uso / di manutenzione del prodotto C321dn del fabbricante OKI
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Us er ’ s Gu id e C301/C321/C331/C511/C531/ES5431.
Preface > 2 P REFACE Every effort has been made to ensure that t h e information in this document is complete, accurate, and up-to-date. T he manufacturer as sumes no responsibility for the results of errors beyond its control.
Emergency first aid > 3 E MERGENCY FIRST AID Take care with toner powder: If swallowed, give small amounts of cold water and seek medical attention. DO NOT attempt to induce vomiting. If inhaled, move the person to an op en ar ea for fresh air. Seek medical attention.
Contents > 4 C ONTENTS Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Emergency first aid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Manufacturer .
Contents > 5 Cover page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29 Duplex . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 Paper source . . . . . . . . .
Contents > 6 Mac OS X . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .79 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81 Major printer components and paper path .
Notes, cautions and warnings > 7 N OTES , CAUTIONS AND WARNINGS For the protection of your product, and in or der to ensure that you benef it from its full functionality, this model has b een designed to operate only with genuine original toner cartridges.
About this guide > 8 A BOUT THIS GUIDE D OCUMENTATION SUITE This guide is part of a suite of online and printed documentation provided to help you become familiar with your product and to make the best use of its many powerful features.
About this guide > 9 O N - LINE USAGE This guide is intended to be read on sc r een using Adobe Reader. Use the navigation and viewing tools provided in Adobe Reader . There are many cross-references with in this book, each highlighted as blue text .
Getting Started > 10 G ETTING S TARTED O VERVIEW F RONT VIEW 1. Output stacker , face down. Standard printed copy delivery point. Holds up to 150 sheets at 8 0g/m². 2. Operato r panel. Menu driven operator controls and LCD panel a . 3. Paper tr ay .
Getting Started > 11 R EAR VIEW When the rear paper stacker is folded do wn pa per exits the printer through the rear of the printer and is stacked here face up. This is mainly used for heavy pr int media. When used in conjunction with the multi purpose feed tray, the paper path th rough the printer is essentially straight.
Getting Started > 12 Power Save button on the control panel. The Power Save button illuminates while in Power Save Mode. S LEEP MODE Your machine transitions from power saving mode to sleep mode after a set peri od of time. In sleep mode the power consumption of the devi ce is minimal.
Paper recommendations > 13 P APER RECOMMENDATIONS Your printer wi ll handle a variety of print media, including a range of pa per weights and sizes, labels and envel opes. This section prov ides general advice on choice of media, and explains how to use each type.
Paper recommendations > 14 M ULTI PURPOSE TRAY The multi purpose tray can handle the same si zes as the cassette trays but in weights up to 220 g/m² . For very heavy paper stock use the face up (rear) paper stacker. This ensures that the paper path through th e printer is almost strai ght.
Loading paper > 15 L OADING PAPER C ASSETTE TRAYS 1. Re move the paper tray from the printer . 2. F an the paper to be loaded at the edges (1) and in the middle (2) to ensure that all sheets are properly separated, then tap th e edges of the stack on a flat surface to make it flush again (3).
Loading paper > 16 3. Load paper (letter headed paper face down and top edge towards the front of the printer), as shown. 4. Adjust the rear stopper (a) and paper guides (b) to the size of paper being used. 5. Close the paper tra y gently . To prevent paper jams: > Do not leave space b etween the paper and the guides and rear stopper .
Loading paper > 17 > Do not pull the paper tr ay out during prin ting (except as described below for the 2nd tra y). NOTE > If you have two trays and you are printing from the 1st (upper) tray, you can pull out the 2nd (lo wer) tray during printing to reload it.
Loading paper > 18 M ULTI PURPOSE TRAY 1. Open the multi purpose tr ay (a). 2. Fold out the paper supports (b). 3. Press gently down on the paper platform (c) to ensure it is latched down. 4. Load the paper and adjust the paper guides (d) to the size of paper being used.
Operation > 19 O PERATION C301 AND C511 For full details of how to use the machine and any optional access ori es to print jobs efficiently and effectively, please refer to the following chapters: .
Printing settings in Windows ( C301 and C511 only) > 20 P RINTING SETTINGS IN W INDOWS (C301 AND C511 ONLY ) Your printer’s operator panel menu s provide access to many options. The Windows printer driver also contains settin gs for many of these ite ms.
Printing settings in Windows ( C301 and C511 only) > 21 5. For two-si ded printing, you can choose to flip the page b y the long edge or the short edge. 6. If you hav e changed some printing preferen ces before and saved them as a set, you can recall them to a void having to set th em individually each time y ou need them.
Printing settings in Windows ( C301 and C511 only) > 22 C OLOUR TAB 1. Control over the colour output of your pr inter ma y be performed automatically , or for advanced control, by manual adju stment. The automatic setting will be appropriate in most cases.
Printing settings in Windows ( C301 and C511 only) > 23 S ETTING FROM WINDOWS CONTROL PANEL When you open the driver properties window direct ly from Windows, rather than from within an application program, a somewhat more extensive range of settings is provided.
Printing settings in Windows ( C301 and C511 only) > 24 printing, causing the print job to paus e fo r more than a short period, the pri nter could prematurely assume that the docume nt has finished. Selecting this option would prevent that sit uation, but printing will be compl eted a little later , as the start is delayed.
Printing settings in Mac OS X (C301 and C511 only) > 25 P RINTING SETTINGS IN M AC OS X (C301 AND C511 ONLY ) The information in this section i s based on Mac OS X Tiger (10.4). Other versions may appear slightly different, but the principles are the same.
Printing settings in Mac OS X (C301 and C511 only) > 26 2. T o change the paper size or pag e orientation, select File > Page Setup . 3. Select Save As Default f rom the Settings drop-down menu. 4. Select File > Print . 5. T o save the current printer d river settings as a pres et, select Save As fro m the Preset menu.
Printing settings in Mac OS X (C301 and C511 only) > 27 Scale You can scale documents up or down to fit onto different paper sizes. To fit your document on a specific paper size, select Options in the Paper Handling drop-down m enu in the Print Options dialog box (see “Print options” on page 27 ).
Printing settings in Mac OS X (C301 and C511 only) > 28 Scheduler This option lets you choose whether to pri nt yo ur document immediately, or defer printing until later. You can also assig n a priority to a print job. These features are useful if you are printing la rge documents that take a long time to print.
Printing settings in Mac OS X (C301 and C511 only) > 29 Quartz Filter Choose a Quartz filter if you wish to apply a sp ecial effect to your print job, such as Sepia or Blue Tone. C OVER PAGE Choosing a cover page may help you to i dentify your printed document in a large pile of paper.
Printing settings in Mac OS X (C301 and C511 only) > 30 P RINT QUALITY Print quality Use this option to sele cts the print resolu tion. The ProQ2400 setti ng produces the best graphic images, but these imag es can take longer to print. Photo Enhance Use Photo Enhance to significantly improve qual ity when printing images.
Printing settings in Mac OS X (C301 and C511 only) > 31 Color matching Black Finish Use this option to control the way black is printed in colour documents. Select Composite Black (CMYK) to use all 4 toner colours to represen t black. This option i s recommended for color photos.
Printing settings in Mac OS X (C301 and C511 only) > 32 Paper size check Select Paper Size check if you want the printe r to warn you when the document paper size is different from the paper in the printer. A warning message is di splayed and printing co ntinues when you load the correct paper in the paper tray and press ONLINE .
Colour printing (C301 and C511 only) > 33 C OLOUR PRINTING (C301 AND C511 ONLY ) The printer drivers supplied wi th your machin e provide several contr ols for changing the colour output. For general use the automatic se ttings will suffice, providing reasonable default settings that will produce good results for most documents.
Colour printing (C301 and C511 only) > 34 How your software application disp lays colour Some graphics applications such as Corel Draw or Adobe Photoshop may display colour differently from “Office” applic ations such as Microsoft Word. Please see your application’s on-line help or user manual for more information.
Colour printing (C301 and C511 only) > 35 A CCESSING THE COLOUR MATCHING OPTIONS The colour matching options in the printer driver can be used to help match your print ed colours to the ones displayed on your monitor or from some other source, su ch as a digital camera.
Colour printing (C301 and C511 only) > 36 U SING THE COLOUR SWATCH FEATURE To use t he Colo ur Swatch feature, you mu st insta ll the C olour Sw atch Ut ility. Th is is supplied on the DVD-ROM that yo u received with your printe r. The Colour Swatch function prints charts which contain a range of sample col ours.
Menu functions > 37 M ENU FUNCTIONS This section lists the menus accessed via the co ntrols on the printer’s operator panel and displayed in the LCD window. O PERATOR PANEL 1. READY LED ON: Ready to receiv e data. BLINK 1 (0.8 sec interval): Processing data.
Menu functions > 38 7. OK Button In the ONLINE or OFFLINE mode: enters the Menu mode. In the Menu mode: determines th e setting selected. 8. CANCEL Button Deletes the data being printed or received when pressed for two se conds or longer .
Menu functions > 39 H OW TO CHANGE THE SETTINGS - USER I t s h o u l d b e n o t e d t h a t m a n y o f t h e s e s e t t i n gs can be, and often are, overridden by settings in the Windows printer drivers.
Menu functions > 40 9. Press the OK button. 10. Using the up or down MENU button, identif y the parameter as required. 11. Press the OK bu t t on t o en t e r a n a s te r i sk ( * ) o n the right side of the setting selected. 12. Press the ON LINE button to switch to online.
Menu functions > 41 I NFORMATION MENU This menu provides a quick method of list ing various items stored within the printer. STORED JOB NO T FOUND PRINT DELETE Used to print out a stored job in the SD card. “NOT FOUND” will be displaye d where a file is unavailable.
Menu functions > 42 S HUTDOWN MENU T h i s i t e m s h o u l d a l w a y s b e s e l e c t e d b e f o r e s w i t c h i n g t h e p r i n t e r o f f , t o e n s u r e t h a t n o d a t a is lost. P RINT MENU This menu provides adjustment of various print job related functions.
Menu functions > 43 RESOLUTION 600DPI 600x1200DPI 600DPI M-LEVEL Sets the default resolution fo r printing (dots per inch). 600x1200DPI uses more memory and requires more time to process, but pri n ts at a higher quality . TON E R S AVE LE V EL OFF LOW MIDDLE HIGH Set the toner s ave level.
Menu functions > 44 M EDIA MENU This menu provides adjustment to suit a wide range of print media. Y DIMENSION 127MILLIMETER ~ 297MILLIMETER ~ 1321MILLIMETER Specifies paper length of Custom paper as a default val ue . Sets a paper size in the same direction as the paper run direction.
Menu functions > 45 MPT P APERSIZE A4 A5 A6 B5 LEGAL14 LEGAL13.5 LEGAL13 LETTER EXECUTIVE CUSTOM COM-9 ENVELOPE COM-10 ENVELOPE MONARCH ENV DL ENVELOPE C5 ENVELOPE INDEX CARD Selects the s ize of paper to be fed from the multi purpose tray . For CUSTOM setting see X -DIMENSION and Y -DIMENSION in “Print menu” on page 42 .
Menu functions > 46 C OLOR MENU The printer automatically adjusts colour bala nce and density at appropriate intervals, optimising the printed output for bright white paper viewed in natural daylight condit ions. The items on this me nu provid e a means of changing the default settings for specia l or particularly difficul t print jobs.
Menu functions > 47 S YS CONFIG MENU This menu adjusts general printer setting s to suit the way you prefer to work. CMYK CONVERSION ON OFF Setting to “OFF” wi ll simplify the con version process of CMYK data, which will redu ce the proc essing time.
Menu functions > 48 PCL EMULATION This menu controls sett ings effective when th e printer is operati ng in PCL emul ation mode . WAIT TIMEOUT 5~ 40 SEC ~300, OFF Specifies how many seco nds the printer will wait when received data pauses before forcing a page eject.
Menu functions > 49 PPR EMULATION This menu controls setting s ef fective when the printer is op erating in PPR emulation mode. PEN WIDTH ADJUST ON /OFF When minimum width is specified in PCL, sometime s a 1-dot line, looks broken.
Menu functions > 50 FX EMULATION This menu controls settings ef fective when the printer is op erating in FX emulation mode. FIT TO LET TER DISABLE ENABLE Sets the printi ng mode that can fit prin t data, equivalent to 11 inches (66 lines), in the LETTER -size printable area.
Menu functions > 51 USB MENU This menu controls the operation of t he printer’s USB data interface. N ETWORK MENU This menu controls the operat ion of the pr inter’s 10Base-T/100Base- TX network interface. ITEM SETTINGS EXPLANATION SOFT RESET ENABLE / DISABLE Enables or disables the SOF T RESET command.
Menu functions > 52 FRAME TYPE AUTO / 802.2 / 802.3 / ETHERNET II / SNAP Applies to C331 and C531/ ES5431 only . Selects th e Ethernet MAC layer fr ame type. Display Condition: Ne tware should be enabled. IP ADDRESS SET AUTO / MANUAL Specifies whether IP addres s allocation is automatic (DHCP) or manually assigned.
Menu functions > 53 M EMORY MENU Not displayed as default . This menu is displayed onl y when set to EN ABLE in OP MENU of Administrator menu. This menu sets the conditions of memory allocated to the buffer and res ource. ITEM SETTINGS EXPLANATION RECEIVE BUF SIZE AUTO 0.
Menu functions > 54 S YS A DJUST MENU Not displayed as default . This menu is displayed onl y when set to EN ABLE in OP MENU of Administrator menu. M AINTENANCE MENU This menu p rovides access to va rious pr inter ma intenance f unctions. ITEM SETTINGS EXPLANATION X ADJUST +2.
Menu functions > 55 U SAGE MENU This menu is for information onl y, and provides an indication of total usage of the printer and the expected life lef t in its consumable item s. This is particularly useful if you do not have a full set of replacement consumables to hand and you need to know ho w soon you will need them.
Menu functions > 56 K TONER (n.nK) REMAINING C TONER (n.nK) REMAINING M TONER (n.nK) REMAIN ING Y TONER (n.nK) REMAINING Cartridge size and current toner lev el.
Menu functions > 57 A DMINISTRATOR M ENU This menu should only be ch anged by the System Administrators. In order to gain access to this menu, follow the instructions in “How to change the setti ngs - administ rator” on page 39 . This menu is in ENGLISH only.
Menu functions > 58 OP MENU (cont.) FX EMULA TION ENABLE DISABLE Set up ENABLE/DISABLE condition for FX EMULA TION category . If DISABLE is selected, FX EMU LA TION category of USERS MENU will not appear . USB MENU ENABLE DISABLE Set up ENABLE/DISABLE condition for USB MENU category .
Menu functions > 59 HIGH HUM. MODE ON OFF If moistened paper (*) is curled significantly after printing, change th e setting to ON. After ON is selected, the warm-up time before printing may take a little longer . (*) Moistened paper means paper that has been left in a high humidity environment.
Menu functions > 60 SECURIT Y MENU (cont.) RESET CIPHER KEY EXECUTE Resets a cipher key to be used on an encrypted SD card. When this processing is done, all data stor ed on the SD card cannot be restored. After executi on, the following confirmation messages will appear .
Menu functions > 61 FILE SYS MAINTE2 CHK FILE SYS EXECUTE Executing th is function will resolve any mismatch between the actual and the displayed free space of the fi le system and recov er the management data (F A T informat ion). Note 1: It take s several seconds to complet e this funct ion.
Menu functions > 62 LANGUAGE MENU LANG INITIALIZE EXECUTE Initi alise the message file loaded in FLASH MEMORY . If NO is sele cted, the mac hine will go back to the source menu. The procedur e for clearing the disk will st art immediately after the menu and machi ne reboot.
Menu functions > 63 P RINT STATISTICS This menu should only be ch anged by the System Administrators. In order to gain access to this menu, follow the instructions in “How to change the setti ngs - administ rator” on page 39 , but hold down the Menu button instead of the OK button.
Maintenance > 64 M AINTENANCE R EPLACING CONSUMABLE ITEMS Only use genuine original consumables to ensure the best quality and performance from your hardware. Non origina l products may adversely affect your printer's performance an d invalidate your warranty.
Maintenance > 65 2. Note the positions of the four cartridges. It is essential that they go back in the same order . (a) Slide the coloured release collar on th e cartridge to be replaced fully towards the right hand side of the printer.
Maintenance > 66 5. Remo ve the new cartridge from its box but leave its wr apping material in place for the moment. 6. Gently shake the new cart ridge from end to end sever al times to loosen and distribute the toner evenly inside the cartridge. 7.
Maintenance > 67 11. Gently wipe the LED head surface with a clean, lint free cloth. 12. Finally , close the top cover and press down fi rmly at both sides so that the cover latches closed.
Maintenance > 68 R EPLACING THE TRANS FER BELT UNIT The belt unit is located und er the image drum assembly. Switch off the printer and allow the fuser to cool for about 10 minutes before opening the cover. 1. Press the cov er release and open the printer’ s top cover fully .
Maintenance > 69 4. Pull the locking leve rs at each side of the tr ansfer belt up and towards the front of the machine. 5. Using the locking lev ers (a), lift the belt (b) upw ards and withdraw from the machine. 6. Lower the new belt unit into place, with the drive gear tow ards the rear of the printer .
Maintenance > 70 F USER REPLACEMENT The fuser is located inside the printer just behind the toner cartri dges. 1. Press the cov er release and open the printer’ s top cover fully . 2. Identify the fuser handle (a) on the top of the fuser unit. 3.
Maintenance > 71 8. Push the two retaining levers (b) tow ards the rear of the printer t o lock th e fuser in place. 9. Finally , close the top cover and press down fi rmly at both sides so that the cover latches closed.
Maintenance > 72 C LEANING ... THE UNIT CASING 1. Switch the printer off . 2. Wipe the unit surface with a soft cloth moistened sparingly with water or neutr al detergent. 3. Use a soft dry cloth to dry t he unit surface. 4. Switch the printer on. .
Installing upgrades > 73 I NSTALLING UPGRADES This section explains how to instal l optional equipment into your printer. This i ncludes: > additional RAM memory ( C331 and C531/ES5431 only ) &g.
Installing upgrades > 74 3. T urn locking screw (a) anti-clockwise and re move the inner access co ver (b). Place it safely to one side. 4. Carefully remove the new memory board from its wrappi ng. T ry to handle the board only by its short edges, avoiding contact wi th any metal parts as far as possi ble.
Installing upgrades > 75 10. Replace t he inner access cover (b) and turn locking screw (a) clockwise to secure it shut. 11. Replace the access co ver and latch it closed. 12. Reconnect t he AC power cable and switch the printer on. 13. When the printer is ready , print a menu map as follows: (a) Press the OK button.
Installing upgrades > 76 SD CARD (C531/ES54 31 ONLY ) The optional SD card enables collating of prin ted pages and can be us ed to store over lays and macros, fonts, and secure or pr oof documents waiting to be printed. 1. Switch the printer off and di sconnect the AC power cable.
Installing upgrades > 77 5. Gently push the SD card into the slot as shown. 6. Replace t he inner access cover (b) and turn locking screw (a) clockwise to secure it shut. 7. Replace the access co ver and latch it closed. 8. Reconnect t he AC power cable and switch the printer on.
Installing upgrades > 78 A DDITIONAL PAPER TRAY 1. Switch the printer off and di sconnect the AC power cable. 2. Place additi onal paper tray on desired location. 3. Observing safety rules for li fting and, usin g locating guides, place printer on top of the additional paper tr ay .
Installing upgrades > 79 S ETTING THE DRIVER DEVI CE OPTIONS Once your new upgrade has been installed, yo u may need to update the printer driver so that the additional features are available to your applications. Accessor ies such as ad ditional paper trays will only be usable if the printer driver on your computer knows they are there.
Installing upgrades > 80 Panther (Mac OS X 10.3) 1. Open the Mac OS X Print & F ax Pre ferences. 2. Click Printing . 3. Click Set Up Printers… . 4. Ensure your machine is selected and click Show Info… . 5. Click the menu and choose Installable Options… .
Troubleshooting > 81 T ROUBLESHOOTING Provided that you follow the recommendations in this guid e on the use of print media, and you keep the media in good condition prior to us e , y o u r p r i n t e r s h o u l d g i v e y e a r s o f r e l i a b l e service.
Troubleshooting > 82 P APER SENSOR ERROR CODES CODE # LOCATION CODE # LOCATION 370 Duplex 390 MP T r ay 371 Duplex 391 Paper T ray 372 Duplex 392 2 nd Paper tr ay a a.
Troubleshooting > 83 C LEARING PAPER JAMS 1. If a sheet is well adv anced out of the top of the printer , simply grip it and pull gently to dra w it fully out. If it does not remov e easily , do not use excessiv e force. It can be removed from the rear la ter .
Troubleshooting > 84 5. Look into the printer to check whether any sheets of paper are visible on any part of the belt unit. (a) To remove a sheet with it s leading edge at the front of the belt (a.
Troubleshooting > 85 through the drum c avity area. Then allo w the pressure release lever to rise again. (d) T o remove a she et in the fuser, move the two retaining levers (e) towards the front of the ma chine to release th e fuser. With draw the fuser un it using the handle (f).
Troubleshooting > 86 6. If you were duplex printing when the ja m occurred, check the duplex paper path: (a) Pull the locking levers at each side of the transfer belt up and tow ards the front of the machine. (b) Usi ng the locking levers (a), lift the belt (b) upwards and wi thdraw from the machine.
Troubleshooting > 87 8. Lower the top cover but do not press down to latch it closed yet. This will protect the drum from exces sive exposure to room li ghting while you check t he remaining areas for jammed sheets. 9. Open the rear exit tray (h) and check for a sheet of paper in the rear path area (i).
Troubleshooting > 88 D EALING WITH UNSATISFACTORY PRINTING SYMPTOMS POSSIBLE CAUSES STEPS TO TAKE V ertical white li nes can be seen on the printed page. The LED head is dirty . Wipe the LED head with a soft, lint-free clo th. The toner is low. Open th e top cover and tap the cartridge a few times to evenly distribute any remaining toner .
Troubleshooting > 89 Horizont al Lines and spots appear periodically . When the inte rval is about 94mm (4in), the im age drum (the green tube) is damaged or dirty . Wipe it lightly wi th a soft cloth. Replac e the image drum cartridge when it is damaged.
Specifications > 90 S PECIFICATIONS C301 - N34321B C321/C331 - N34322B C511 - N34323B C531/ES5431 - N3 4324B ITEM SPECIFICATION C301 C321/C 331 C511 C530/ ES5431 Dimensions 410 x 504 x 242mm (W x D x H) W eight 21Kg approx.
Index > 91 I NDEX B Belt how to replace ............ ...... 6 8 life remaining .... ............ .... 55 C Cleaning the LED head .... ...... 72 Colour adjusting ........... .......... ...... 46 D Duplex paper size and weight limits . 14 E Envelopes loading .
Oki contact de tails > 92 O KI CONTACT DETAILS Oki Systems (UK) Limited 550 Dundee Road Slough Trading Estate Slough, SL1 4LE Tel:44 (0) 1753 819819 Fax:44 (0) 1753 819899 http://www.oki.co.uk Oki Systems Ireland Limited The Square Industrial Com plex Tallaght, Dublin 24, Ireland Tel:+353 1 4049590 Fax:+353 1 4049591 http://www.
Oki contact de tails > 93 General Systems S.R.L. (Romania) Sos. Bucuresti-Ploiesti Nr. 135. Bucharest 1 Romania Tel: +40 21 303 3138 Fax: +40 21303 3150 Website: http://romania.oki.com Var vänlig kontakta din Återförs äljare i första hand, för konsu ltation.
Oki Europe Limited Blays Hous e Wick Ro ad Egham Surrey, TW20 0HJ Unit ed Kingdom Tel: +44 (0) 208 219 2190 Fax: +44 (0) 208 219 2199 www.okiprintingsolutions.
Un punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il OKI C321dn è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del OKI C321dn - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso OKI C321dn imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul OKI C321dn ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il OKI C321dn, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del OKI C321dn.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il OKI C321dn. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo OKI C321dn insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.
