Xerox Phaser 3450 Service Manual page 134

11.1.2 Quality Specification
Item
1. Conditions Paper
Environment
2. Print Quality Optical Density
Background
Uniformity
Fusing
Skew
Bowing
Special Paper
Exception
Paper Jam
Paper Curl
3. Reliability Insulation Resistance
Voltage Strength
(Hi-Pot)
Ground Continuous
Voltage DIP
Leakage Current
Surge
OZONE Emission
Top Cover Open
Overcurrent Protect
4. Fusing System Trouble Sensing
Overheat Sensing
Specification & Descriptions
Core Media List
Temperature : 15 ~ 25°C
Humidity : 40 ~ 60%
-Avr. 1.30 (Temperature : 15 ~ 25°C) :
After 1hr. from Power On
-Over 1.0 (min.) if left in low temperature.
OD delta less than 1.0 (croma meter)
Max. 0.2(Including Continuous Print)
Min 75% ('All Black' & '2 by 2 Pattern')
Vertical : Max. 1.75 mm / 250 mm
Horizontal : Max. 1.5 mm / 200 mm
Horizontal(applied to 200mm) : less than 0.5 mm
Image Density : Min1.0(Envelope)
Fusing : Min. 70%
(Envelope/OHP/Postcard:More than 120g/m
Less than 1/2000 (75g/m 2 Paper, in L/L condition)
First : Less than 16mm (10 Sheets)-->
measured in 1 min. after printing 10 pages.
over 100 MΩ (at DC 500V / 1 mm)
less than 130V / AC 1.0 kV
less than 250V / AC 1.5 kV
Less than 0.1Ω (25A / 3 sec)
100%/1cycle, 50%/2cycle, 20%/4cycle
Less than 3.5mA (1.5 kohm)
IEC61000-4-5, Normal ±1KV, Common ±3KV
Average 0.1 PPM or less
Isolating the input power from below parts
;LSU, High Voltage Part, DC fan, Clutch, Fuser Motor
Fuse inside the SMPS
.The temperature does not rise to the
specific temperature in the specific time.
.The temperature is too high.
230 - 240°C(The thermostat cuts off the Fuser from the power.)
Thermistor Open Sensing : Without the initial tempera turn change of
the Fuser
CIRCUIT DESCRIPTION
Remark
75g/m 2
Temperature
2 )
Indicate the
Fuser error
Service Manual
11-3