1. General Adjustments – Copying, Printing and
Procedure
*The service technician must perform the adjustment in accordance with the procedure below.
(1) Make sure that no
(2)Check a direction in which colors are misaligned.
*This adjustment is intended to correct the print start timing of the toner colors in the secondary scanning direction, in order to align the print positions of 3 toner colors (K, C and Y) with magenta (M). Therefore, it will be effective, only if colors are misaligned in the paper feeding direction (or the secondary scanning direction). If colors are misaligned in the direction perpendicular to the paper feeding direction (or the primary scanning direction), refer to <Hint> below.
<Hint> If colors are misaligned in the direction perpendicular to the paper feeding direction, enter test mode [03] and rotate the transfer belt for 5 minutes. (The main motor drives the transfer belt. Use
(3)Correct
*Two types of the color registration control procedures are provided (one type for
| Procedure |
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| Test print pattern |
| Printing | Paper | No. of copies | Referred |
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| image | size | to be printed | to | |||
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| Procedure 1 |
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| Test print pattern 63 | Ladder | A3/LD | 2 | 1.5.1 | ||||
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| Test print pattern 68 | A4/LT | 4 | 1.5.2 | ||||||
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| Procedure 2 |
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| Test print pattern 64 | Block | A3/LD | 2 | 1.5.3 |
*Use steps in order, as listed below. If you start with other than step "1," use subsequent steps to the primary one. (e.g. If you start with step "2," subsequently use steps "3," "4," "5" and "6" in order.)
| Order |
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| [05] code |
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| Procedure |
| Paper and range to be |
| Remarks* |
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1 |
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| Procedure 1 or 2 | A3/LD, 1st page |
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2 |
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| A3/LD, 2nd page |
| B | ||||||
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3 |
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| A4/LT, 1st page |
| C | ||||
4 |
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| Procedure 1 | A4/LT, 2nd page |
| D | |||||
5 |
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| A4/LT, 3rd page |
| E | ||||||
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6 |
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| A4/LT, 4th page |
| F |
*The alphabet in Remarks in the table above indicates a page to be printed as illustrated in " Explanation" in the previous page.
<Hint> • First, change the values for codes
•The values for codes
*Refer to the color registration control procedures described later for further information regarding each procedure.