Oki MC780f MC770/780 User Guide - Advanced - Page 258
Setting the calibration display level, Setting the calibration, Changing the roughness of print, glass
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SETTING ITEMS (ADMIN) Setting the calibration display level You can set whether this equipment will use the calibration 1 setting set by a user or the administrator. The relevant buttons ([CALIBRATION]) will appear under the ADMIN menu only or under both the USER and ADMIN menus according to this setting. Item name Description CALIBRATION • USER - Press this button to display [CALIBRATION] in the ADMIN menu 2 as well as the USER menu • ADMIN - Press this button to display [CALIBRATION] in the ADMIN menu Setting the calibration You can automatically calibrate the color gradation when the shading and hue are not reproduced accurately in the images 3 scanned by this machine. Note • Whether to allow calibration by not only administrators but also users, is set by DISPLAY LEVEL. P.258 "Setting the calibration display level" • Place LT or A4 paper (recommended paper) in the tray 4 before starting the calibration. If any other paper is used, calibration may not be performed properly. • If the glass is dirty or any foreign objects are stuck to it, calibration may not be performed properly. Keep the glass clean. • Do not raise the original cover or the Reversing Automatic Document Feeder*1, or open the front cover while the calibration is in progress. If this does happen, calibration cannot be finished properly. 5 • Interrupt copying is not available during the calibration. • If the color often deviates, call your dealer. *1 The Reversing Automatic Document Feeder is an option depending on the model. Memo • For instructions on how to display the CALIBRATION 6 screen, see the following page: P.230 "Accessing the User Menu" 1 Press the button to calibrate. Item name Description COPY Press this button to calibrate for copy jobs. 7 600 dpi PRINT Press this button to calibrate for 600 dpi print jobs. 1200 dpi PRINT Press this button to calibrate for 1200 dpi print jobs. Note • The available buttons differ depending on the model. 2 Select the paper type and press [OK]. Note • Depending on the machine settings, the screen to select the paper type may not be displayed. In this case, proceed to the next step. 3 Select the calibration settings. Item name Description DEFAULT Press this button to restore the default calibration setting and return to the previous screen. CALIBRATION Press this button to calibrate using the printed chart. In this case, proceed to the next step. 4 Place the printed chart face down on the glass, so that the two black rectangular marks are placed on the left side. 5 Press the [START] button on the control panel. The calibration begins. Do not operate the equipment until the message "Scanning and calibrating" disappears. Note • If the chart is not properly placed, the message "Set chart correctly" is displayed on the touch panel. In this case, return to step 3 and realign the chart. Changing the roughness of print You can switch the line density level of images in printing. This setting applies to print jobs with 600 dpi. Set this to color and black printing, respectively. Item name HIGH LOW Description Press this button to print with the normal line density level. Press this button to print with the lower line density level than a normal one. Memo • Changing the setting displays the CONFIRMATION screen that asks you whether you want to perform calibration or not. Select [OK] or [CANCEL] as required. - 258 -