MX-7090N MX-8090N Administrator Machine Adjustment Guide Please keep the manual in a safe place where it will not be lost.
Caution The Machine Adjustment is provided assuming that an administrative user who has sufficient knowledge for machine maintenance and management and is responsible for them uses the adjustment. Changing adjustment values provided by the Machine Adjustment without having sufficient knowledge may lead to unexpected incidents such as insufficient print quality or product performance, increase in toner consumption and influence on machine life.
Table of Contents 1 Image Quality Adjustment ....................................................................................................... 6 1.1 Laser Adjustment .............................................................................................................................6 1.1.1 Density Smoothing Adjustment (Auto Adjustment)......................................................................................6 1.1.2 Density Smoothing Adjustment (Densitometer Adjustment) ......
2.3.3 Copy Image Loss Amount Settings (Duplex Single Pass Feeder) ............................................................29 2.3.4 Scanner Image Loss Amount Settings ......................................................................................................29 2.4 3 Off-Centre Adjustment...................................................................................................................30 2.4.1 Print Off-Centre Adjustment ..................................................
Void Area Unprinted area around the edges of sheet in printing Purpose of Document This document is for explaining the content, procedure and caution on each adjustment so that users in charge of machine maintenance understand and perform the machine adjustment properly. Image Loss Unscanned area around the edges of original in scanning To adjust the machine, tap the [Machine Adjustment] key in the Home Screen to open the Machine Adjustment screen.
Machine Adjustment 1.1 Laser Adjustment Caution: Check the followings before performing the adjustment. Image problems like unevenness caused by electronic charge problems Paper remaining amount in trays Do not perform the auto adjustment if you wish to keep manual adjustment values as those values will be cleared by performing the auto adjustment. 1 Image Quality Adjustment Select [Image Quality Adjustment] in the Machine Adjustment screen.
[Before Adjustment] 3) A message “Value set at Density Smoothing Adjustment (Densitometer/Visual) is cleared if executed. Execute?” comes up when you tap the [Execute] key. Tap the [Execute] key to continue if you do not see a problem. Tap the [Cancel] key if you do not want to clear the value. Note: To return your preferences to the factory defaults, tap the [Return to the Defaults (Density Smoothing Adjustment)] key. When a confirmation message appears, tap the [OK] key.
7) Check the density in the adjustment result. (When density is achieved after this adjustment tap [Back] key and perform the next process 8.) 5) Place the test patch on the document glass and tap the [Execute] key to start the adjustment. Note: When the scanning of the test patch fails, the following message appears: Auto adjustment has failed. Please check if the test patch is properly set on the document glass. Press [Execute] to resume scanning.
2) To print a test patch, tap the [Execute] key in the Density Smoothing Adjustment (Densitometer Adjustment) screen. If you need to change the density, select the desired density and then tap the [Execute] key. 5) Enter the five measured values and tap the [Execute] key to start the adjustment. Input range: [0] to [300] (1 = 0.01) Default: [100] for each Note: To return your preferences to the factory defaults, tap the [Return to the Defaults (Density Smoothing Adjustment)] key.
1.1.3 3) A test patch containing 4 columns of 28 patches (3-30) is printed. Density Smoothing Adjustment (Visual Adjustment) Modes the adjustment is effective in: Copy and printer modes Overview: This performs density smoothing adjustment for printing in front / rear (main scan) direction by measuring test patch visually. This is recommended to use when it is easy to judge colours visually.
In 5-point adjustment, 5 points can be entered to extrapolate and adjust all of the remaining 32 points. In 32-point adjustment, each point can be adjusted. ◆When [32] is selected in step 4): *Partial adjustment is possible. 8) Make sure to perform [1.5.3 Standard Calibration] (or [Auto Color Calibration] under [Settings] if you wish not to erase the adjustment values set by [1.5.1 Colour Balance Adjustment (for Copy)] and [1.5.2 Colour Balance Adjustment (for Print)]) after this adjustment.
1.1.5 [Adjustment for C/M/Y] Read the scale value of the highest density in the adjustment pattern F/R (1 scale value / 2 adjustment values) and make adjustment by the difference. Adjustment value as a guide = (Value read from the pattern R) – (Value read from the pattern F) Print Skew Adjustment Modes the adjustment is effective in: Copy and printer modes Overview: This performs print skew adjustment manually.
1.1.6 3) An adjustment pattern is printed. Registration Adjustment Modes the adjustment is effective in: Copy and printer modes Note: When the printing of an adjustment pattern fails, the following message appears: Printing test patch has failed. Use A3 or 11" X 17" paper for this adjustment. Press [Execute] to print the test patch. Overview: This performs registration adjustment. Registration adjustment can be performed manually or automatically.
1.2 Sub scan direction Density Adjustment Select [Density Adjustment] in the Image Quality Adjustment screen. 1.2.1 Density Adjustment Automatic Execution Frequency Main scan direction Modes the adjustment is effective in: Copy and printer modes Overview: This makes a setting of frequency (condition) to perform density adjustment (process control) automatically.
Execution Frequency: Input range: [-2] to [2] Default: [0] 2) To change the maximum density setting of density adjustment, tap [+] and [-] key or use the 10-key pad appears when each of the textboxes is tapped.
Note: When plain paper or recycled paper is used, Set [Fusing Control Settings] of [Device Control] in [System Settings]. When unrecommend glossy paper or embossed is used, set paper property to print with proper weight of paper setting. When an envelope is not set properly in the tray, poor fusing or crease may occur. When unrecommended envelope is used, poor fusing or crease may occur. 1) Select [Density Adjustment (Forced Execution)] in the Density Adjustment screen.
1.4 Caution: If the value is set to too high, ghost image of single color may appear. If the value is set to too low, the density may become too low. Transfer Select [Transfer] in the Image Quality Adjustment screen. 1.4.1 Primary Transfer Current Value Setting Modes the adjustment is effective in: Copy and printer modes 3) Tap [Register] key to register the setting. Overview: This performs toner transfer adjustment by fine tuning primary transfer current value.
1.4.3 Adjustment Procedure: 1) Select [Copy Colour Balance Adjustment] in the Image Quality Adjustment screen. PTC Current Value Setting Modes the adjustment is effective in: Copy and printer modes Overview: This performs toner transfer adjustment by fine tuning PTC current value. Symptoms that may be alleviated by the adjustment: When the image is distorted by the use of a large embossed paper (not by temperature or humidity), distortion may be improved by increasing the value.
2) To start the adjustment, tap the [Execute] key in the Colour Balance Adjustment (for Print) screen. To change the density points separately The density points can be specified separately. Input range: [400] to [600] Default: [500] for each 3) An adjustment pattern is printed. Density Point 1 indicates the patches of the lowest density for each color, Density Point 2 indicates the patches of the second lowest density, and Density Point 17 indicates the patches of the highest density.
The [Set in a Batch] checkbox is not checked by default. When this checkbox is checked, the value [500] appears in the textbox. 2) To print a test patch, select the desired calibration and tap the [Execute] key in the Standard Calibration screen. Note: When the [Set in a Batch] checkbox is checked, Density Points 1-17 are greyed out. When this checkbox is not checked, the textbox for [Set in a Batch] is not active. (A beep sounds when the textbox is tapped.
1.5.4 7) A test patch is printed. Copy Calibration by Screen Modes the adjustment is effective in: Copy mode Note: When the printing of a test patch fails, the following message appears: Printing test patch has failed. Use A4 or 8 1/2" X 11" paper for this adjustment. Press [Execute] to print the test patch. Overview: This performs gradation density for printing in copy mode for each dither pattern. The scanner can be used to perform fine adjustment of the copying colour balance of each screen.
5) When the adjustment is completed, the dither pattern selection screen appears. Symptoms that may be alleviated by the adjustment: Case that density of dark area is low Case that you want to improve gradation of dark area Example of Printer Calibration by Screen screen. Adjustment Procedure: 1) Select [Colour Copy Black Component Amount Adjustment] in the Image Quality Adjustment screen. 2) Select the mode to adjust with scroll key. The 10-key pad appears when each of the textboxes is tapped.
1.6 Symptoms that may be alleviated by the adjustment: Case that you want to eliminate gap in photo and halftone part, which are generated by copying copy and print originals, and make the image quality suitable for copy and print originals Case that you want to eliminate edges and improve photo image quality if you see edges like black dots in photo image.
1.6.3 Preparing the fuser belt refresh tool Temperature/Humidity Display Modes the adjustment is effective in: Copy and printer modes Note: If a previously used polishing sheet is still attached, be sure to remove the old sheet and attach a new sheet. Overview: This shows temperature and humidity in the machine. To polish the fusing belt, attach a polishing sheet to the polishing jigs on the fuser belt refresh tool.
When machine preparations are completed, the message below appears. 3. Remove the paper guide. Lift the back slightly so that the paper guide clears the tab, and slide forward to remove. 3) Replace the paper guide with the fuser belt refresh tool. Caution: The fusing unit may be hot. Wait until it has cooled sufficiently. 1. 4) Attach the fuser belt refresh tool. Open the right side cover. ➀ Pull the right side cover release lever to unlock the cover. ➁ Open the right side cover. 1. 2. 3. 2. 4.
5. Close the right side cover. 5) After replacing the paper guide with the fuser belt refresh tool, tap the [Next] key. Note: If for any reason the machine power turns off and then restarts after you tap the [Next] key, a message will appear after the machine starts. In this case, repeat the procedure for replacing the paper guide with the fuser belt refresh tool from the beginning. 6) Tap the [Execute] key to execute fusing belt refreshing.
2) Enter the desired values and tap the [Register] key. 2 Image Position/Ratio/Area Adjustment Select [Image Position/Ratio/Area Adjustment] in the Machine Adjustment screen. 2.1 Ratio Adjustment Select [Ratio Adjustment] in the Image Position/Ratio/Area Adjustment screen. Input range: [20] to [80] (1 = 0.1 %) Default: [50] for each Note: To return your preferences to the factory defaults, tap the [Return Scan Ratio Adjustment Value to the Default] key.
2) Enter the desired value and tap the [Register] key. Note: To return your preferences to the factory defaults, tap the [Return to the Defaults (Scan Original Edge Adjustment)] key. When a confirmation message appears, tap the [OK] key. Your preferences are returned to the factory defaults and the screen returns to the Edge Adjustment screen. 2.3 Select [Void Area Adjustment] in the Image Position/Ratio/Area Adjustment screen. Input range: [20] to [80] (1 = 0.1 mm) Default: [50] 2.3.
Note: To return your preferences to the factory defaults, tap the [Return to the Defaults (Copy Image Loss Amount)] key. When a confirmation message appears, tap the [OK] key. The machine restarts, and the settings return to the factory default state. Adjustment Procedure: 1) Select [Duplex Single Pass Feeder Image Loss Amount Settings] in the Void Area Adjustment screen. Specify the Print Position Adjustment / Scan Position Adjustment first. 2) Enter the desired values and tap the [Register] key.
2) Enter the desired values and tap the [Register] key. 2) Enter the desired values and tap the [Register] key. Example of the Scanner Image Loss Amount Settings screen Example of the Print Off-Centre Adjustment screen Input range: [30] to [70] (1 = 0.1 mm) Default: [50] for each Input range: [0] to [100] (1 = 0.1 mm) Default: [0] for each Note: LCT Tray 1, LCT Tray 2, LCT Tray 3, LCT Tray 4, LCT Bypass Tray and LCC are displayed only when the options are installed.
Caution: Turning the Main Scan Direction Real Time Adjustment ON might affect the print speed and the drum life. 2) Enter the desired values and tap the [Register] key. Input range: [20] to [80] (1 = 0.1 mm) Default: [50] for each Note: To return your preferences to the factory defaults, tap the [Return to the Defaults (Scan Original Off-Centre)] key. When a confirmation message appears, tap the [OK] key.
2) Adjust the staple positions in the direction of paper width. The 10-key pad appears when each of the textboxes is tapped. Enter the desired values. 3 Peripheral Adjustment Select [Peripheral Adjustment] in the Machine Adjustment screen.
2) Adjust the distance between the alignment plates in the direction of paper width for stapling. The 10-key pad appears when the textbox is tapped. Enter the desired value. 3.1.4 Fold/Staple Position Adjustment for Saddle Stitch Modes the adjustment is effective in: Copy and printer modes Overview: This performs adjustment of fold and staple positions for saddle stitch (fold and staple) (both fold and staple positions are adjusted together).
3.2 2) Fine-tune the staple position in relation to the fold position for saddle folding. The 10-key pad appears when the textbox is tapped. Enter the desired value. Trimming Module Select [Trimming Module] in the Peripheral Adjustment screen. 3.2.1 Trimming Original Point Adjustment Modes the adjustment is effective in: Copy and printer modes Overview: This performs adjustment of trimming origin position for saddle stitch (fold and staple).
3.3 Functional Restriction For 2 staples, the staple positions that can be adjusted vary depending on the paper size and the number of sheets included in a set to be stapled as the following table shows: Finisher (When the 100-sheet finisher is installed) Select [Finisher] in the Peripheral Adjustment screen. 3.3.
3.4 3.4.2 Punch Module (When the 100-sheet saddle finisher and the punch module for the finisher is installed) Modes the adjustment is effective in: Copy and printer modes Select [Punch Module] in the Peripheral Adjustment screen. 3.4.1 Punch Mode Switch Overview: This switches punch operation mode. High Accuracy Mode: Prioritizes punch position accuracy when punching. High Production Mode: Prioritizes speed when punching.
2) Adjust the paper jog amounts for the paper skew adjustment in high accuracy mode. The 10-key pad appears when each of the textboxes is tapped. Enter the desired values. 2) Adjust the saddle fold position for when the folding unit is installed. The 10-key pad appears when the textbox is tapped. Enter the desired value. Input range: [80] to [120] (1 = 0.1 mm) Default: [100] for each Input range: [46] to [54] (1 = 0.5 mm) Default: [50] 3.
Diagram showing the accordion fold position 2) Adjust the C-fold position for when the folding unit is installed. The 10-key pad appears when the textbox is tapped. Enter the desired value. 3.5.4 Double Fold Position Adjustment Modes the adjustment is effective in: Copy and printer modes Input range: [36] to [60] (1 = 0.5 mm) Default: [48] Overview: This performs adjustment of fold position for double fold.
3.5.5 Z-Fold Position Adjustment 4 Print Setting Value List Modes the adjustment is effective in: Copy and printer modes The current setting values and the factory defaults for the items in the machine adjustment can be printed. Overview: This performs adjustment of fold position for Z-fold. Select [Print Setting Value List] in the Machine Adjustment screen.
6.1 3) When image adjustment ends, Registration Adjustment starts automatically. When Registration Adjustment ends, Copy Calibration starts. A test patch for Copy Calibration is printed. Scan the test patch and perform Copy Calibration. Location of the 10-key Pad in the Screen The 10-key pad appears when each of the textboxes in the screen is tapped. 4) Next, start Printer Calibration. A test patch for Printer Calibration is printed. Scan the test patch and perform Printer Calibration.
Appendix A: Symptoms to Adjust Transfer Values Transfer Values Tap Positive(+) when Tap Negative(-) when Primary transfer setting Image problems such as misalignment or streaks, white dots occur due to usage in high humidity environment or long period of non-use in high humidity environment Ghost images (print memory) or black dots occur due to usage in low humidity environment or long period of non-use in low humidity environment Secondary transfer setting Surface of images become rough due to using
ADJ-EX-1
