Service Instructions; Precautions For Handling The Laser Equipment - Minolta Di251 Service Manual

NOTES
• For the Duplex Unit standard on the 35-cpm copier, see Service Manual for AD-15.
• For the Fixed Paper Size Cassette standard on the 35-cpm and 25-cpm copiers, see Ser-
vice Manual for PF-119.
1.

SERVICE INSTRUCTIONS

1-1. IDENTIFICATION OF FUSES AND CIRCUIT BREAKERS
Power Supply Unit (PU1)
250 V 15 A (F001)
250 V 10 A (F002)( )
250 V 2 A (F201)( )
250 V 2 A (F501)( )
250 V 5 A (F701)( )
250 V 3.15 A (F801)
250 V 3.15 A (F802)
250 V 3.15 A (F803)
NOTE
• The fuses marked with (F002, F201, F501, and F701) prevent a component in the
Power Supply Unit, as it becomes defective, from smoking or starting fire. If any of these
fuses is blown, replace the Power Supply Unit.
1-2.

PRECAUTIONS FOR HANDLING THE LASER EQUIPMENT

• The laser used in this copier is a semiconductor laser having the following specifications.
Max. power
Output wavelength
• When laser protective goggles are to be used, select ones with a lens conforming to the
above specifications.
• When a disassembly job needs to be performed in the laser beam path, such as when
working around the printerhead and PC Drum, be sure first to turn the copier OFF.
• If the job requires that the copier be left ON, take off your watch and ring and wear laser
protective goggles.
• A highly reflective tool can be dangerous if it is brought into the laser beam path. Use
utmost care when handling tools on the user's premises.
• The printerhead is not maintainable in the field. It is to be replaced as an assembly
including the control board. Never, therefore, attempt to remove the laser diode or adjust
trimmers on the control board.
4011D112CA
25-cpm copier 35-cpm copier
5 mW
770-795 nm 775-795 nm
D-1
Fusing Roll
Hearter Lamp Fuse (TF1)
125 V 15 A
Fusing Roll
Thermostat (TS1)
250 V 10 A
15 mW