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Adjust the color density at each of the 15 points for each of the four colors.
• Do these to decide what density value to input:
• Look at the color adjustment sheet.
• Look at the gradation scale entitled "Default" for the color you want to adjust.
• Go along the scale until you reach the density you want to input.
• Read off the value on the scale and store it in the machine:
• Use the up/down key to move the cursor along the three-digit display. Then press the Enter
key.
• Use the up/down key to change the digit at the cursor. Then press the Enter key.
• Press the Escape key to exit from the menu.
• Do the same for all 15 points.
10.
When the density setting is complete for all colors, print out a color adjustment sheet
again and make sure that the gradation scale for each printed color is smooth and that
the CMY gradation scale is gray. Do the adjustment again if there is an anomaly
(normally, repeat this procedure 3 to 5 times).
11.
Do these when the adjustment results are satisfactory:
• Use Controller SP 1105 "ToneCtlSave" in the controller service menu, to store the new settings
in the controller.
• Reset the controller (press the [Reset] key when the machine is off line) to use the new settings.
• You must reset the controller to keep the new settings in the controller NVRAM.
Adjustments
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Summary of Contents for SP C440dn
Page 1: ...Model Z P2 Machine Codes M257 Field Service Manual April 2015...
Page 2: ......
Page 30: ...1 Product Information 28...
Page 73: ...9 Install the securing holder E 10 Reassemble the machine Tray Heater 71...
Page 86: ...3 Preventive Maintenance 84...
Page 92: ...5 Left cover B Right Cover 1 Open the duplex unit A 4 Replacement and Adjustment 90...
Page 128: ...5 Open the upper cover A 4 Replacement and Adjustment 126...
Page 131: ...4 The left stay A x 4 5 Rear holder bracket A x 2 Image Transfer 129...
Page 139: ...3 Remove the two screws 4 ID sensor board bracket A x 1 Image Transfer 137...
Page 141: ...4 Exit the SP mode Image Transfer 139...
Page 146: ...2 Temperature Humidity sensor A x 1 x 1 4 Replacement and Adjustment 144...
Page 187: ...3 Bracket A x 1 4 Release the paper feed unit A x 1 Paper Feed 185...
Page 201: ...5 Inner left upper cover page 94 6 Paper exit unit holder A x 1 Paper Exit 199...
Page 211: ...6 Release the left arm A x 1 Duplex Unit 209...
Page 215: ...3 Duplex lower guide plate A 4 Duplex upper guide plate A x 7 Duplex Unit 213...
Page 220: ...8 Right and left arms A x 2 each 4 Replacement and Adjustment 218...
Page 221: ...9 Duplex By pass motor bracket with the frame A x 6 10 Guide plate A x 4 Duplex Unit 219...
Page 230: ...Controller Box Removal E HVPS CB Board Right Cover Open F BCU 4 Replacement and Adjustment 228...
Page 245: ...5 Disconnect the connector 6 Disconnect the six connectors x 1 Electrical Components 243...
Page 254: ...4 Replacement and Adjustment 252...
Page 564: ...5 System Maintenance Reference 562...
Page 637: ...Model Z P2 Machine Codes M257 Appendices February 2015...
Page 638: ......
Page 640: ...2...
Page 648: ...1 Appendix Specifications 10...
Page 652: ...MEMO 14...
Page 653: ...MEMO 15...
Page 654: ...MEMO 16 EN...