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3. Maintenance

Installing accessories

Precautions

Disconnect the power cord

Never remove the control board cover while the power is turned on.

To avoid the possibility of an electrical shock, always disconnect the power 
cord when installing or removing ANY internal or external accessories.

Discharge static electricity

The control board and internal accessories (memory module) are sensitive 
to static electricity. Before installing or removing any internal accessories, 
discharge static electricity from your body by touching something metal, 
such as the metal back plate on any device plugged into a grounded power 
source. If you walk around before finishing the installation, repeat this 
procedure to discharge any static electricity again.

 

When installing accessories, the battery inside the machine is a service 
component. Do not change it by yourself. There is a risk of an explosion if 
battery is replaced by an incorrect type. Your service provider should 
remove the old battery from your device and dispose of it in accordance 
with the relevant regulations in your country.

 

Setting Device Options

When you install the optional devices such as optional tray, memory, etc, this 

machine automatically detects and sets the optional devices. If you cannot use 

the optional devices you installed in this driver, you can set the optional devices 

in 

Device Options

.

1

Click the Windows 

Start

 menu.

For Windows 8, from the 

Charms

, select 

Search

 > 

Settings

.

For Windows XP/2003, select 

Printers and Faxes

.

For Windows 2008/Vista, select 

Control Panel

 > 

Hardware and 

Sound

 > 

Printers

.

For Windows 7, select 

Control Panel

 > 

Hardware and Sound

 > 

Devices and Printers

.

For Windows 8, search for 

Devices and Printers

.

For Windows Server 2008 R2, select 

Control Panel

 > 

Hardware

 > 

Devices and Printers

.

Right-click your machine. 

For Windows XP/2003/2008/Vista, press 

Properties

.

For Windows 7, Windows 8, and Windows Server 2008 R2, from context 
menus, select the 

Printer properties

.

Summary of Contents for ProXpress M453 Series

Page 1: ...cerning installation basic operation and troubleshooting on Windows ADVANCED This guide provides information about installation advanced configuration operation and troubleshooting on various OS environments Some features may not be available depending on models or countries ...

Page 2: ...ng USB memory device 30 1 Maintenance Ordering supplies and accessories 2 Available consumables 3 Available accessories 4 Available maintenance parts 5 Storing the toner cartridge 6 Redistributing toner 8 Replacing the toner cartridge 10 Replacing the imaging unit 12 Installing accessories 14 Monitoring the supplies life 17 Setting the toner imaging unit low alert 18 Cleaning the machine 19 Tips f...

Page 3: ...3 BASIC 1 Appendix Specifications 2 Regulatory information 13 Copyright 24 ...

Page 4: ... know before using the machine Key benefits 5 Features by model 7 Useful to know 9 About the user s guide 10 Safety information 11 Machine overview 16 Control panel overview 19 Turning on the machine 21 Installing the driver locally 22 Reinstalling the driver 24 ...

Page 5: ... Cloud Print enabled apps see Google Cloud Print on page 183 Easy Capture Manager allows you to easily edit and print whatever you captured using the Print Screen key on the keyboard see Easy Capture Manager on page 237 Samsung Easy Printer Manager and Printing Status is a program that monitors and informs you of the machine s status and allows you to customize the machine s settings see Using Sam...

Page 6: ...ements on page 111 Your machine is equipped with a USB interface and or a network interface Supports various wireless network setting method Using WPS Wi Fi Protected Setup You can easily connect to a wireless network using the WPS feature on the machine and an access point wireless router Using a USB cable or a network cable You can connect to a network and set various wireless network settings u...

Page 7: ...lank Not supported Operating System M453x series Windows Mac Linux Unix Software M453x series SPL printer driver PCL printer driver PS printer drivera a Download the software from the Samsung website and install it http www samsung com find your product Support or Downloads Before installing check whether your computer s OS support the software XPS printer drivera Samsung Easy Printer Manager Devi...

Page 8: ...ess LANa a Depending on your country wireless LAN card may not be available For some countries only 802 11 b g can be applied Contact your local Samsung dealer or the retailer where you bought your machine Wireless NFC kit Eco printing Duplex 2 sided printing USB memory interface Memory module 2GB Optional tray Tray2 Tray3 Tray4 Tray5 Mass Storage Device Hard Disk Short Stand AirPrint Google Cloud...

Page 9: ...in Check the meanings of LED indications in this manual and troubleshoot accordingly see Understanding the status LED on page 94 A paper jam has occurred Open and close the door see Front view on page 17 Check the instructions on removing jammed paper in this manual and troubleshoot accordingly see Clearing paper jams on page 83 Printouts are blurry The toner level might be low or uneven Shake the...

Page 10: ...on its options or model you purchased The screenshots in this user s guide may differ from your machine depending on the machine s firmware driver version The procedures in this user s guide are mainly based on Windows 7 1 Conventions Some terms in this guide are used interchangeably as below Document is synonymous with original Paper is synonymous with media or print media Machine refers to print...

Page 11: ...d is damaged or if the electrical outlet is not grounded This could result in electric shock or fire Do not place anything on top of the machine water small metal or heavy objects candles lit cigarettes etc This could result in electric shock or fire If the machine gets overheated it releases smoke makes strange noises or generates an odd odor immediately turn off the power switch and unplug the m...

Page 12: ...ctric shock or fire If the plug does not easily enter the electrical outlet do not attempt to force it in Call an electrician to change the electrical outlet or this could result in electric shock Do not allow pets to chew on the AC power telephone or PC interface cords This could result in electric shock or fire and or injury to your pet Do not forcefully pull the paper out during printing It can...

Page 13: ...n below are only suggestions based on the units weight If you have a medical condition that prevents you from lifting do not lift the machine Ask for help and always use the appropriate amount of people to lift the device safety The machine could fall causing injury or machine damage Then lift the machine If the machine weighs under 20 kg 44 09 lbs lift with 1 person If the machine weighs 20 kg 44...

Page 14: ...diminish performance and could result in electric shock or fire The machine should be connected tothe power level which is specified on the label If you are unsure and want to check the power level you are using contact the electrical utility company a AWG American Wire Gauge Unplug this product from the wall outlet before cleaning the inside of the machine Do not clean the machine with benzene pa...

Page 15: ...st can be dangerous if inhaled or ingested Using recycled supplies such as toner can cause damage to the machine In case of damage due to the use of recycled supplies a service fee will be charged For supplies that contain toner dust toner cartridge waste toner bottle imaging unit etc follow the instructions below When disposing of the supplies follow the instructions for disposal Refer to the res...

Page 16: ...ts may change depending on the circumstances Machine Quick installation guide Power cord Software CDa a The software CD contains the print drivers user s guide and software applications Imaging unit Misc accessoriesb b Miscellaneous accessories included with your machine may vary by country of purchase and specific model ...

Page 17: ...eatures by model on page 7 1 Control panel 2 Memory Module DIMM covera 3 Front cover 4 Short standa 5 Paper level indicator 6 Optional traya 7 Tray1 8 Multi purpose tray cover 9 USB memory port 10 Front cover button 11 Output tray 12 Wireless NFC kit areaa 13 Multi purpose tray paper width guides 14 Multi purpose tray paper extension 15 Imaging unitb 16 Toner cartridge a Optional feature b Remove ...

Page 18: ...our model There are various types of machine Some features and optional goods may not be available depending on model or country see Features by model on page 7 1 Wireless NFC kita port cover 2 Rear cover 3 Power receptacle 4 Power switch 5 USB port 6 EDI port for card reader 7 Network port a Optional feature ...

Page 19: ...nsumptionandpaperusage see Ecoprinting on page 52 4 Numeric keypad Use the keypad to enter numbers and characters see Keypad letters and numbers on page 214 5 Status LED Indicates the status of your machine see Understanding the status LED on page 94 6 Arrow Navigates available values by moving to the next or previous options 7 OK Confirms the selection on the screen 8 Menu Enters menu mode and sc...

Page 20: ...or country see Features by model on page 7 When using the touch screen only use your finger Sharp objects can damage the screen 1 Touch screen Displays the current status and allows you to access available menus 2 Stop Clear Stops current operation 3 Power Wake Up You can turn the power on and off with this button Or wake up from the power save mode 4 LED Indicates the status of your machine see U...

Page 21: ...rn the switch on if the machine has a power switch Illustrations on this user s guide may differ from your machine depending on its options or models Check your machine type see Front view on page 17 2 Power is turned on automatically If you want to turn the power off press the Power Wake Up button ...

Page 22: ...ine and interface in use Only use a USB cable no longer than 3 meters 118 inches 14 Windows 1 Make sure that the machine is connected to your computer and powered on 2 Insert the supplied software CD into your CD ROM drive If the installation window does not appear click Start All programs Accessories Run X Setup exe replacing X with the letter which represents your CD ROM drive and click OK For W...

Page 23: ...om the Windows Store You need have a Microsoft account to use the Windows Store 1 From Charms select Search 2 Click Store 3 Search and click Samsung Printer Experience 4 Click Install If you install the driver using the supplied software CD V4 driver is not installed If you want to use the V4 driver in the Desktop screen you can download from the Samsung website www samsung com find your product S...

Page 24: ...instructions in the window 3 Follow the instructions in the installation window 4 Insert the software CD into your CD ROM drive and install the driver again see Installing the driver locally on page 22 From the Windows 8 Start Screen 1 Make sure that the machine is connected to your computer and powered on 2 Click on the Uninstall Samsung Printer Software tile in the Start screen 3 Follow the inst...

Page 25: ...and Basic Setup This chapter provides information about the overall menu structure and the basic setup options Menu overview 26 Machine s basic settings 34 Media and tray 36 Basic printing 49 Using USB memory device 54 ...

Page 26: ...splay depending on options or models If so it is not applicable to your machine Some menu names may differ from your machine depending on its options or the models The menus are described in the Advanced Guide see Useful Setting Menus on page 189 1 Press Menu button on the control panel 2 Press the arrows until the needed menu item appears and press OK 3 If the setting item has sub menus repeat st...

Page 27: ... This is used only available when Job Accounting is enabled from the SyncThru Web Admin Service Orientation Portrait Landscape Margin Common Margin MP Tray Tray x b Emulation Margin Duplex Off Long Edge Short Edge b tray type indicates the tray number Copies Tray x b Paper Size Paper Type MP Tray Paper Size Paper Type Paper Source Auto Tray x b MP Tray Tray Confirm Tray x b MP Tray Resolution Stan...

Page 28: ...lt Paper Power Save Wakeup Event Job Timeout Held Job Timeout Altitude Adjustment Humidity Job Rescheduling Auto Continue Auto Tray Switch Paper Substitution Tray Protection Tray Mode Skip Blank Pages a This option is available when the optional Mass Storage Device Hard Disk installed Maintenance Supplies Life RAM Disk Paper Low Alert Toner Save Eco Settings Auto Power Off Filing Policy Emulation ...

Page 29: ...hernet Port Ethernet Speed 802 1x Wi Fib Wi Fi On Off Wi Fi Settings WPS Wi Fi Direct Wi Fi Signal CLR Wi Fi Set b This option is available when the optional Wireless NFC kit installed Protocol Management NFC Network Configuration Clear Setting Active Job Secured Job Stored Job Print Delete Stamp Stamp Activate Item Text Size Opacity Position Change Admin Password Firmware Upgrade Import Setting E...

Page 30: ... page 189 Icon Name Description Information Prints various machine information and reports Eco Displays Eco settings Direct USB Enters the USB menu when USB memory is inserted into the USB memory port on your machine Setup Browse current machine settings or change machine values Job Status Displaysthejobscurrentlyrunning completedor in queue Counter Displays total pages printed Help View help and ...

Page 31: ... Web Service Settings tab Machine Settings System Eco Settings or Samsung Easy Printer Manager Device Settings Eco the On Forced message appears You have to enter the passcode to change the eco mode status Print From Options Copies Auto Fit Duplex Paper Source File Manage Options Delete Format Show Space System Date Time Date Format Clock Mode MSD Spooling Language Maintenance Supplies Info Paper ...

Page 32: ...s sec00000 Application Application Management Install New Application Secure Print Supplies Management Toner Low Alert Imaging Unit Low Alert Network TCP IP IPv4 TCP IP IPv6 Ethernet 802 1x Wi Fib Wi Fi On Off Wi Fi Settings WPS Wi Fi Direct Wi Fi Signal Clear Wi Fi Settings Protocol Management NFC Network Configuration Clear Settings Layout Orientation Margin Duplex Paper Copies MP Tray Tray x c ...

Page 33: ...Status on page 207 Counter see Counter on page 208 Help see Help on page 209 Current Job Secure Job Stored Job Complete Job Total Printed Basic Taskflow Information Eco Direct USB Setup Troubleshooting Paper jam in MP Tray Paper jam in Tray 1 Paper jam in Tray 2 Paper jam in Tray 3 Paper jam in Tray 4 Paper jam in Tray 5 Jam inside machine Jam in exit area Jam inside of duplex ...

Page 34: ...ings To change the machine s default settings follow these steps 1 Select Menu OK System Setup OK on the control panel OR For the model with a touch screen select Setup System Next on the touch screen 2 Select the option you want Language Change the language that is displayed on the control panel Date Time You can set the time and date They are printed on reports If however theyarenotcorrect youne...

Page 35: ...tup System Next Wakeup Event On on the touch screen Altitude Adjustment Print quality is affected by atmospheric pressure whichatmosphericpressureisdeterminedbytheheightof the machine above sea level Before you set the altitude value determine the altitude where you are see Altitude adjustment on page 213 3 Press OK to save the selection For the model with a touch screen press back to save the sel...

Page 36: ...a you choose should be appropriate for your project Brightness Some print media are whiter than others and produce sharper more vibrant images Surface smoothness The smoothness of the print media affects how crisp the printing looks on the paper Some print media may meet all of the guidelines in this user s guide and still not produce satisfactory results This may be the result of the sheets chara...

Page 37: ...n rare cases may cause a fire The amount of paper put into the tray may differ according to media type used see Print media specifications on page 107 4 Tray overview To change the size you need to adjust the paper guides 1 Paper length guide 2 Paper width guide If you do not adjust the guide it may cause paper registration image skew or jamming of the paper ...

Page 38: ...he standard tray can hold a maximum of 550 sheets of plain paper 75 g m2 20 lb bond You can purchase an optional tray see Available accessories on page 61 Using photographic paper or coated paper may cause problems that require repairs Such repairs are not covered by the warranty or service agreements 1 Pull out the tray 2 Squeeze the paper width guide and pull it to the end of the tray ...

Page 39: ...tray 39 2 Menu Overview and Basic Setup 3 Squeeze the paper length guide and pull it to the end of the tray 4 Flex and fan the edge of the paper stack to separate the pages before loading papers 5 Load the paper ...

Page 40: ...guides and slide them to the desired paper size marked at the bottom of the tray Do not push the paper width guide too far causing the media to warp If you do not adjust the paper width guide it may cause paper jams Do not use a paper with a leading edge curl it may cause a paper jam or the paper can be wrinkled ...

Page 41: ...pecification see Print media specifications on page 107 and then try placing one sheet at a time in the multi purpose tray see Printing on special media on page 43 Multi purpose tray The multi purpose tray can hold special sizes and types of print material such as postcards note cards and envelopes Tips on using the multi purpose tray Load only one type size and weight of print media at a time in ...

Page 42: ...velopes and labels before loading them into the multi purpose tray 1 Open the multi purpose tray and open the extension if necessary 2 Flex or fan the edge of the paper stack to separate the pages before loading originals 3 Load the paper 4 Squeeze the multi purpose tray paper width guides and adjust them to the width of the paper Do not force too much otherwise the paper will bend resulting in a ...

Page 43: ...m SyncThru Web Service Settings tab Machine Settings see Using SyncThru Web Service on page 240 Or you can set it using Menu Paper Paper Size or Paper Type button on the control panel For the model with a touch screen you can set it using Setup Paper Next select a tray Paper Size or Paper Type on the touch screen Then set the paper type from the Printing preferences window Paper tab Paper Type see...

Page 44: ...following figure When selecting envelopes consider the following factors Weight should not exceed 90 g m2 otherwise jams may occur Construction should lie flat with less than 6 mm 0 25 inches curland should not contain air Condition should not be wrinkled nicked nor damaged Temperature should resist the heat and pressure of the machine during operation Use only well constructed envelopes with shar...

Page 45: ...rint quality position margins no closer than 15 mm from the edges of the envelope Avoid printing over the area where the envelope s seams meet Labels To avoid damaging the machine use only labels designed for use in laser printers When selecting labels consider the following factors Adhesives Should be stable at your machine s fusing temperature about 170 C 338 F Arrangement Only use labels with n...

Page 46: ... application set the margins to at least 6 4 mm 0 25 inches away from the edges of the material Preprinted paper When loading preprinted paper the printed side should be facing up with an uncurled edge at the front If you experience problems with paper feeding turn the paper around Note that print quality is not guaranteed Must be printed with heat resistant ink that will not melt vaporize or rele...

Page 47: ...Or you can set it using Menu Paper Paper Size or Paper Type button on the control panel For the model with a touch screen you can set it using Setup Paper Next select a tray Paper Size or Paper Type on the touch screen Then set the paper type from the Printing preferences window Paper tab Paper Type see Opening printing preferences on page 50 1 Select Menu Paper Paper Size or Paper Type button on ...

Page 48: ... once Make sure that you do not touch the surface and do not allow children near it The printed pages stack on the output support and the output support will help the printed pages to align Unfold the output support Illustrations on this user s guide may differ from your machine depending on its options or models Check your machine type see Front view on page 17 ...

Page 49: ...on page 232 The following Printing Preferences window is for Notepad in Windows 7 1 Open the document you want to print 2 Select Print from the File menu 3 Select your machine from the Select Printer list 4 The basic print settings including the number of copies and print range are selected within the Print window To take advantage of the advanced printing features click Properties or Preferencesf...

Page 50: ...u select an option in Printing Preferences you may see a warning mark or An mark means you can select that certain option but it is not recommended and an mark means you cannot select that option due to the machine s setting or environment 1 Open the document you want to print 2 Select Print from the file menu The Print window appears 3 Select your machine from the Select Printer 4 Click Propertie...

Page 51: ...tab 2 Enter a name for the item in the Favorites input box 3 Click Save 4 Enter name and description and then select the desired icon 5 Click OK When you save Favorites all current driver settings are saved To use a saved setting select it in the Favorites tab The machine is now set to print according to the settings you have selected To delete saved settings select it in the Favorites tab and cli...

Page 52: ...elect Eco Settings Next on the touch screen 2 Select the option you want and press OK For the model with a touch screen select the option you want and go to step 4 Default Mode Select this to turn on or off the Eco mode If you set the Eco mode on with a password from the SyncThru Web Service Settings tab Machine Settings System Eco Settings or Samsung Easy Printer Manager Device Settings Eco the O...

Page 53: ...vice Settings Eco the password button is activated To change the print settings click on this button enter the password or need to contact the administrator Result simulator ResultSimulator shows the results of reduced emission of carbon dioxide used electricity and the amount of saved paper in accordance with the settings you selected The results are calculated on the basis that the total number ...

Page 54: ...ust use only an authorized USB memory device with an A plug type connector Use only a USB memory device with metal shielded connector Only use a USB memory device that has obtained compatibility certification otherwise the machine might not recognize it Insert a USB memory device into the USB memory port on your machine Do not remove the USB memory device while it is in use The machine warranty do...

Page 55: ...enu Direct USB USB Print on the control panel OR Select USB Print From Next on the touch screen 3 Select the folder or file you want 4 Select the number of copies to be printed or enter the number 5 Touch Print on the touch screen 6 Press Stop Clear button or home icon to return to ready mode 16 Backing up data Data in the machine s memory can be accidentally erased due to power failure or storage...

Page 56: ...ion window appears 6 Press Stop Clear button or home icon to return to ready mode 17 Managing USB memory You can delete image files stored on a USB memory device one by one or all at once by reformatting the device After deleting files or reformatting a USB memory device files cannot be restored Therefore confirm that you no longer need the data before deleting it Deleting an image file 1 Insert a...

Page 57: ...ss OK or Yes when the confirmation window appears 4 Press Stop Clear button or home icon to return to ready mode Viewing the USB memory status You can check the amount of memory space available for scanning and saving documents 1 Insert a USB memory device into the USB memory port on your machine 2 Select Menu Direct USB File Manage Check Space on the control panel OR Select Direct USB Show Space ...

Page 58: ...s 59 Available consumables 60 Available accessories 61 Available maintenance parts 62 Storing the toner cartridge 63 Redistributing toner 65 Replacing the toner cartridge 67 Replacing the imaging unit 69 Installing accessories 71 Monitoring the supplies life 74 Setting the toner imaging unit low alert 75 Cleaning the machine 76 Tips for moving storing the machine 80 ...

Page 59: ... to obtain the list of available supplies and maintenance parts To order Samsung authorized supplies accessories and maintenance parts contact your local Samsung dealer or the retailer where you purchased your machine You can also visit www samsung com supplies and then select your country region to obtain the contact information for service ...

Page 60: ...ner Samsung cannot guarantee non genuine Samsung toner cartridge s quality Service or repair required as a result of using non genuine Samsung toner cartridges will not be covered under the machine s warranty Type Average yield Part name Toner cartridgea a Declared yield value in accordance with ISO IEC 19752 The number of pages may be affected by operating environment printing interval graphics m...

Page 61: ...ule Extends your machine s memory capacity SL MEM001 2 GB Optional tray If you are experiencing frequent paper supply problems you can attach an additional trays SL SCF4500 Mass Storage Device Hard Disk a a M453xND series only Allows you to enhance the machine s capability and print in various ways SL HDK4001 Short stand You can easily move the machine using the stand with its wheels SL DSK001S Wi...

Page 62: ...placing maintenance parts can be performed only by an authorized service provider dealer or the retailer where you bought the machine To purchase maintenance parts contact the retailer where you bought the machine The replacement period for the maintenance parts is informed by the Samsung Printer Status program Or if your machine supports display screen a message is displayed in the display screen...

Page 63: ... bag from the original package Store lying flat not standing on end with the same side facing up as if it were installed in the machine Do not store consumables in any of the following conditions Temperature greater than 35 C 95 F Humidity range less than 20 or greater than 80 An environment with extreme changes in humidity or temperature Direct sunlight or room light Dusty places A car for a long...

Page 64: ...ount of toner that print jobs require The actual print yield may vary depending on the print density of the pages you print on operating environment percentage of image area printing interval media type and or media size For example if you print a lot of graphics the consumption of the toner is higher and you may need to change the cartridge more often ...

Page 65: ...ases white streaks or light printing will still occur even after you have redistributed the toner Illustrations in this user s guide may differ from your machine depending on the model and options installed Check your machine type see Front view on page 17 To prevent damage to the toner cartridge do not expose it to light for more than a few minutes Cover it with a piece of paper if necessary Do n...

Page 66: ...Redistributing toner 66 3 Maintenance ...

Page 67: ...toner cartridge thoroughly it will increase the initial print quality Illustrations in this user s guide may differ from your machine depending on the model and options installed Check your machine type see Front view on page 17 To prevent damage to the toner cartridge do not expose it to light for more than a few minutes Cover it with a piece of paper if necessary Do not touch the green area of t...

Page 68: ...Replacing the toner cartridge 68 3 Maintenance 4 Toner cartridge ...

Page 69: ...69 3 Maintenance Replacing the imaging unit 5 Imaging unit ...

Page 70: ...Replacing the imaging unit 70 3 Maintenance ...

Page 71: ...of an explosion if battery is replaced by an incorrect type Your service provider should remove the old battery from your device and dispose of it in accordance with the relevant regulations in your country 7 Setting Device Options When you install the optional devices such as optional tray memory etc this machine automatically detects and sets the optional devices If you cannot use the optional d...

Page 72: ...talled If this feature is checked you can select the Print Mode Printer Configuration Select the printer language for the print job AdministratorSettings You can select the Printer Status and EMF Spooling Admin Job Accounting Allows you to associate user and account identification information with each document you print User permission If you check this option only users with user permission can ...

Page 73: ...DIMM Use this memory module slot to install additional memory We recommend the use of only genuine Samsung DIMM s You may void your warranty if it is determined that your machine problem is being caused by third party DIMM s The order information is provided for optional accessories see Available accessories on page 61 ...

Page 74: ...s if necessary 1 Select Menu System Setup Maintenance Supplies Life on the control panel OR For the model with a touch screen Select Setup System Next Maintenance Supplies Info OR Select Information Supplies Information on the touch screen 2 Select the option you want and press OK For the model with a touch screen select the option you want 3 Press Stop Clear or home icon to return to ready mode ...

Page 75: ... Manager Switch to advanced mode Device Settings see Device Settings on page 246 If your machine is connected to the network you can set the machine s setting from SyncThru Web Service Settings tab Machine Settings see Using SyncThru Web Service on page 240 1 Select Menu Admin Setup Supplies Management Toner Low Alert or Imaging Unit Low Alerton the control panel For the model with a touch screen ...

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