Xerox Phaser 3140 Service Manual

2-12 Phaser 3140/3155/3160 Printer Service Manual
Theory of Operation
Memory
The Controller Board has Flash and DRAM memory.
• Flash Memory: Stores System Program and can be updated via USB interface.
• DRAM Memory: It is used as Swath Buffer in printing, and System Working
Memory Area.
Power Supply Board
The Power Supply board consists of low voltage and high voltage circuitry and
supplies power to the entire printer.
The low voltage circuit supplies DC power to the printer. It converts 110V/220V to
+5V and +24V DC.
The high voltage circuit outputs the high voltage for the THV/MHV/BIAS signals.
The high voltage output is supplied to the Print Cartridge and Transfer Roller.
AC heater control circuitry supplies power to the Fuser.
Transfer High Voltage (THV+)
The (+) Transfer High Voltage is supplied to the Transfer Roller for transferring
toner onto the OPC Drum to the paper.
• Input Voltage: 24 VDC ± 15%
• Output Voltage: MAX +5.0 KV ± 5% (duty variable, no loading)
• Input Contrast of the Voltage Stability Degree: less than ± 3% (fluctuating
input 21.6V~26.4V)
• Loading contrast: ± 3% or less
• Output Voltage Rising Time: 50 ms Max
• Output Voltage Falling Time: 100 ms Max
• Fluctuating Transfer Voltage with Environmental Various: 0 V~5 KV
P/JCON2
P/JCON1
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Xerox Phaser 3140 Specifications

General

Color	No
Maximum resolution	600 x 1200 DPI
Time to first page (black, normal)	10 s
Print speed (black, normal quality, A4/US Letter)	18 ppm
Internal memory	8 MB
Maximum internal memory	- MB
Sound power level (standby)	26 dB
Sound pressure level (printing)	50 dB
Total input capacity	250 sheets
Total output capacity	80 sheets
Maximum duty cycle	10000 pages per month
Page description languages	GDI
Maximum print size	210 x 297 mm
Media weight (tray 1)	60 - 163 gsm
Paper tray media types	Plain paper
ISO A-series sizes (A0...A9)	A4, A5
ISO B-series sizes (B0...B9)	B5
Maximum ISO A-series paper size	A4
Mac compatibility	Yes
Custom media sizes	76 x 127 - 216 x 356 mm
Compatible operating systems	Windows 2000/XP/2003, Vista, Mac OS
Power consumption (standby)	60 W
Power consumption (printing)	360 W
Display	-
Operating temperature (T-T)	10 - 32 °C
Operating relative humidity (H-H)	20 - 80 %

Weight and Dimensions

Dimensions (WxDxH)	360 x 389 x 230 mm