Konica Minolta Magicolor 5440 DL - Manual (Page 104)

Main Unit Field Service How to Use the Adjustment Section
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III Adjustment/Setting
1. How to Use the Adjustment Section
• This section contains detailed information on the adjustment items and procedures for
this machine.
• Throughout this section the default settings are indicated by boldface.
A. Advance Checks
• Before attempting to solve the customer’s problem, the following advance checks must
be made:
1. Does the power supply voltage meet the specifications?
2. Is the power supply is properly grounded?
3. Does the machine share a power supply with any other machine that draws a large cur-
rent intermittently (for example, an elevator or air conditioner that generates electrical
noise)?
4. Is the installation site level and environmentally appropriate (for example, away from
high temperatures, high humidity, direct sunlight, direct ventilation, etc.?
5. Does the original have a problem that may cause a defective image?
6. Is the density properly selected?
7. Is the Original Glass, slit glass, or a related part dirty?
8. Is the correct media being used for printing?
9. Are the units, parts, and supplies used for printing (developer, PC Drum, etc.) properly
replenished and replaced when they reach the end of their useful service life?
10. Is there an adequate supply of toner in the toner cartridges?
B. Precautions for Service Jobs
1.
Unplug the machine’s power cord before starting a service job procedure.
2. If it is unavoidably necessary to service the machine with its power turned ON, use the
utmost care not to get caught in the Scanner Cables or gears of the Exposure Unit.
3. Use special care when handling the Fusing Unit, which can be extremely hot.
4. The Developing Unit has a strong magnetic field. Keep watches and measuring instru-
ments away from it.
5. Take care not to damage the PC Drum with a tool or similar device.
6. Do not touch IC pins with your bare hands.
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