Checks - Adjustments; Supply Voltages: Connections Between Power Supply Board And Cpu Board; Adjustment Of Scanner Chassis; Video Check - Xerox MF Series Technical Document

1.3 C -
HECKS ADJUSTMENTS
1.3.1 S
UPPLY VOLTAGES
CPU board pin
Note(s) :
• The mains input of the supply is protected by a fuse.
1.3.2 A
DJUSTMENT OF SCANNER CHASSIS
No adjustment required.
1.3.3 V
IDEO CHECK
First calibrate the machine. To do so, use the following procedure:
• Place a blank A4 sheet of paper in the loading tray of the sheet feeder scanner.
• Enter the key sequence MENU, *, a, and validate by pressing OK.
• Wait until the machine restarts.
Make some copies with the CIS and check that the quality of the copies is satisfactory.
In the case of a scanner problem, repeat the calibration procedure above.
In the case of a printer problem (the result remains unsatisfactory after scanner calibration):
• Print the logs to check the printer component of the machine.
• Check the consumable.
1.4 D
ISASSEMBLY
Note(s) : Before any disassembly or assembly operations, the machine must be switched off and
all leads on the back of the fax must be disconnected (phone line, LAN, parallel port
and mains leads).
Remove the document trays and the paper feed tray.
1.4.1 T
OOLS
• Phillips screwdriver
• Torx hex screwdriver (Torx10)
• Flat screwdriver (medium size)
1.4.2 W
ORKSHEETS
• D1 = White roller
• D2 = Paper separator
• D3 = Top cover - Circuit board - Elastomer - Display - Glass - Top cover with loudspeaker
• D4 = Rack - CPU board
• D5 = Control panel / scanner chassis - Printer
- 7 -
:
CONNECTIONS BETWEEN POWER SUPPLY BOARD AND
17
18
19
20 + 24 V
/
ASSEMBLY WORKSHEETS
Value Function
+ 5 V 5 V supply
GND Ground
+ 5 V 5 V supply
24 V supply
MG 252 787 467 - A
CPU
BOARD