NEC Super Script 4400, Руководство по обслуживанию

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254 SuperScript 4400 — Maintenance Guide
42 FU Check
Availability of oil in the fuser unit can be checked.
1. Press Select key after selecting FU CHECK.
note:
Upon energized, fuser unit starts the heat-up process, and checks the availability of fuser oil. If the oil is
available in the fuser unit, "GOOD" is displayed in the LCD, otherwise, "FAIL".
2. Press the Clear key to stop the FU CHECK mode.
43 Margin Adjust
The position of top margin and left margin can be confirmed and adjusted within the range between -3.5mm max.
and +3.5mm max.
1. Press Select key after selecting MARGIN ADJUST.
2. Using Scroll key, select either TOP or LEFT, and then, press Select key. (i.e. Top)
3. Margin can be adjusted 3.5mm max. to both end (left and right) by 0.5mm pitch against the reference value "0".
4. Using Scroll key, select amount of adjustment by picking up a number displayed in Control Panel LCD. In this
instance, the amount of adjustment selected will be displayed at the upper right corner of Control Panel LCD.
5. After confirming the desired amount of adjustment displayed, press Select key to set the adjustment.
6. Press the Clear key to terminate MARGIN ADJUST mode.
7. Press the Clear key one more time to return to FACTORY MODE.
44 Life Period Set
Replacement life of the periodical replacement parts can be set.
1. Press Select key after selecting LIFE PERIOD mode.
2. Using Scroll key, select the desired code to be set, and then, press Select key.
• Fuser Cleaning Roller
• Photoconductor Belt Module
• Fuser Unit
3. Use Scroll key to designate or change the desired digit.
4. Use Select key to input values to the blinking digit.
5. Upon completing the input of values to be set, use the scroll key to move the cursor to SET displayed in the
LCD, and then, press the select key to register the set value.
6. Press the Clear key to complete the setting work.
7. Press the Clear key one more time to return to FACTORY MODE.
45 NVRAM Tune Up
This mode is not used in the normal operation, but is used when fine adjustment of the adjust value is required.
1. LP Tune Up
This mode is used when optical density, line thickness and/or color reproduction needs to be adjusted. The
adjustment will be made by changing the laser power against the reference value 0 (zero) in the range between
the step -4 and +4.
a.
Press Select key after selecting NVM TUNE UP.
b. After selecting LP TUNE UP Code 1, press Select key.
c.
After selecting the color to be tuned up, press Select key. (i.e. Yellow)
d. Tune Up value can be adjusted within 8 steps between the step -4 and +4.
e.
After selecting a given number, press Select key.
f. Press the Clear key to wrap up the tune-up work for yellow color.
g. Repeat the step c through e whenever the tune-up work is required to each color.
h. Press the Clear key to wrap up the tune-up work.