Adjustment/Setting; How To Use The Adjustment Section - Konica Minolta magicolor 7450 Service Manual

Field Service Ver. 1.0 May 2006

Adjustment/Setting

7.

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 " ".
Advance Checks
Before attempting to solve the customer's problem, the following advance checks must be
made:
• Does the power supply voltage meet the specifications?
• Is the power supply is properly grounded?
• 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)?
• Is the installation site level and environmentally appropriate (for example, away from high
temperatures, high humidity, direct sunlight, direct ventilation, etc.?
• Does the original have a problem that may cause a defective image?
• Is the density properly selected?
• Is the Original Glass, slit glass, or a related part dirty?
• Is the correct media being used for printing?
• 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?
• Is there an adequate supply of toner in the toner cartridges?
CAUTION
• Unplug the machine's power cord before starting a service job procedure.
• 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.
• Use special care when handling the Fusing Unit, which can be extremely hot.
• The Developing Unit has a strong magnetic field. Keep watches and measuring
instruments away from it.
• Take care not to damage the PC Drum with a tool or similar device.
• Do not touch IC pins with your bare hands.
7. How to Use the Adjustment Section
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