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3. The DC Controller PCB measures the patch pattern using the Registration Patch Sensor Unit (Rear/Front) (UN25/26)
and the result is returned to the Main Controller PCB.
4. The Main Controller PCB compares this measured data with the reference data for ARCDAT control that has been
backed up. The difference by comparison is reflected to the D-half result as the offset value.
● Color Displacement Correction Control
Purpose
To correct color displacement caused by uneven exposure (skew/bent) from the Laser Scanner Unit or uneven rotation of
the drum/ITB
Control description
Color displacement is corrected by forming a patch for color displacement on the ITB and reading the amount of color
displacement by the patch sensor.
1. A patch pattern (short/long) for each color is created on the ITB.
2. This patch pattern is read by the Registration Patch Sensor Unit (Rear/Front) (UN25/26) to detect the amount of color
displacement compared to the reference color (Y).
3. Based on the abovementioned detection result, correction is performed according to the amount of color
displacement.
Long patch pattern
8 Set
2 Set
Y M C Bk
Y M C Bk
Short patch pattern
3Set
1Set
Y M C Bk
Y M C Bk
Type
Patch pattern
Patch for correction in horizontal scanning direction
Y M C Bk
Patch for correction in vertical scanning direction
Y M C Bk
NOTE:
Short pattern is normally used as the patch pattern used when performing color displacement correction.
Long pattern is used only in the following cases:
• When Adjustment/Maintenance > Adjust Image Quality > Auto Correct Color Mismatch is executed
2. Technology
80
Содержание imageRUNNER ADVANCE C3320 Series
Страница 1: ...Revision 7 0 imageRUNNER ADVANCE C3330 C3325 C3320 Series Service Manual ...
Страница 18: ...Product Overview 1 Product Lineup 7 Features 11 Specifications 17 Parts Name 26 ...
Страница 278: ...J1335 J1066 J1022 J1146 J1050 J1051 J130 J1052 J1053 J1333 J120 J128 J130 4 Parts Replacement and Cleaning 266 ...
Страница 326: ...CAUTION Check that the color of the seal at the center is black 4 Parts Replacement and Cleaning 314 ...
Страница 359: ...6 Remove the Bottle Drive Unit 1 2 Bosses 2 5 Hooks 3 2 2 3 3 3 2 2 1 3 3 3 3 4 Parts Replacement and Cleaning 347 ...
Страница 399: ...Adjustment 5 Pickup Feed System 388 Document Exposure System 391 Actions after Replacement 393 ...
Страница 518: ...Error Jam Alarm 7 Overview 507 Error Code 511 Jam Code 617 Alarm Code 624 ...
Страница 1020: ...9 Installation 1008 ...
Страница 1022: ...2 Perform steps 3 to 5 in each cassette 9 Installation 1010 ...
Страница 1024: ...5 6 Checking the Contents Cassette Feeding Unit 1x 3x 2x 1x 9 Installation 1012 ...
Страница 1027: ...3 4 NOTE The removed cover will be used in step 6 5 2x 2x 9 Installation 1015 ...
Страница 1046: ...When the Kit Is Not Used 1 2 Close the Cassette 2 When the Kit Is Used 1 9 Installation 1034 ...
Страница 1058: ...3 4 CAUTION Be sure that the Inner 2 way Tray Support Member is installed properly 9 Installation 1046 ...
Страница 1062: ...Installation procedure 1 NOTE The work is the same when the Utility Tray is installed 9 Installation 1050 ...
Страница 1068: ... Removing the Covers 1 2x 2 1x 9 Installation 1056 ...
Страница 1070: ...3 1x 1x 9 Installation 1058 ...
Страница 1080: ...Installation Outline Drawing Installation Procedure 1 Remove the all tapes from this equipment 2 2x 9 Installation 1068 ...
Страница 1081: ...3 CAUTION To avoid damage do not pull the A part of the Utility Tray too much A 4 9 Installation 1069 ...
Страница 1083: ...6 7 TP M4x8 2x 2x 9 Installation 1071 ...
Страница 1084: ...When Installing the USB Keyboard 1 Cap Cover Wire Saddle 9 Installation 1072 ...
Страница 1095: ...9 2x 10 2x 11 Remove the Face Seals from the Reader Right Cover The removed Face Seals will not be used 9 Installation 1083 ...
Страница 1101: ... When Stopping to Use 1 Press Reset key or the Voice Recognition button for more than 3 seconds 9 Installation 1089 ...
Страница 1129: ...9 2x 10 2x 11 9 Installation 1117 ...
Страница 1135: ...Remove the covers 1 ws 2x 2 1x 9 Installation 1123 ...
Страница 1140: ...2 2x 3 Connect the power plug to the outlet 4 Turn ON the power switch 9 Installation 1128 ...
Страница 1155: ...Installation Outline Drawing Installation Procedure Removing the Covers 1 2x 2 1x 9 Installation 1143 ...
Страница 1157: ...3 Connect Power Cable and Signal Cable disconnected in the step 2 to the Encryption Board 2 Connectors 2x 9 Installation 1145 ...
Страница 1167: ...Installation Procedure Removing the Covers 1 2x 2 1x 3 2x Installing the Removable HDD Kit 9 Installation 1155 ...
Страница 1176: ... A 2x Installing the Covers 1 1x 2 2x 9 Installation 1164 ...
Страница 1177: ...3 4 2x Installing the Removable HDD 1 Install the HDD Unit to the HDD Slot 9 Installation 1165 ...
Страница 1182: ...Installation Outline Drawing Installation Procedure Removing the Covers 1 2x 2 1x 9 Installation 1170 ...
Страница 1190: ...14 Install the Cable Guide to the HDD Frame 4 Hooks 1 Boss 9 Installation 1178 ...
Страница 1195: ...23 Secure the Power Cable in place using the Wire Saddle 1x Installing the Covers 1 1x 2 2x 9 Installation 1183 ...
Страница 1196: ...3 4 2x Installing the Removable HDD 1 Install the HDD Unit to the HDD Slot 9 Installation 1184 ...