Field Service Ver. 1.0 May 2006
7. How to Use the Adjustment Section
77
magicolor 7450
Adjustment / Setting
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.
Summary of Contents for magicolor 7450
Page 1: ...SERVICE MANUAL 2006 05 2006 05 Ver 1 0 Ver 1 0 FIELD SERVICE magicolor 7450 magicolor 7450 ...
Page 3: ...ii Blank Page ...
Page 26: ...SERVICE MANUAL 2006 05 Ver 1 0 FIELD SERVICE Main Unit magicolor 7450 magicolor 7450 ...
Page 43: ...2 Product specifications Field Service Ver 1 0 May 2006 6 magicolor 7450 General Blank Page ...
Page 288: ...SERVICE MANUAL 2006 05 Ver 1 0 FIELD SERVICE Lower Feeder Unit ...
Page 317: ...3 Other Field Service Ver 1 0 May 2006 26 Lower Feeder Unit Maintenance Blank Page ...
Page 328: ...SERVICE MANUAL 2006 05 Ver 1 0 FIELD SERVICE Duplex Option ...
Page 333: ...1 Product specifications Field Service Ver 1 0 May 2006 2 Duplex Option General Blank Page ...
Page 345: ...6 Jam Display Field Service Ver 1 0 May 2006 14 Duplex Option Troubleshooting Blank Page ...