Panasonic UF-7000 / UF-8000 / UF-7100 / UF-8100 (serv.man2) Service Manual ▷ View online
21
SEPT 2005
Ver. 2.0
UF-7100/8100
UF-7000/8000
2.2.11.5. Low Toner Sensor Circuit
Low Toner Sensor detects the shortage of toner. IC006 (CPU) sends the nTECTL (Pin7, IC006) signal to
Q008. When the nTECTL is low level, transistors Q008 and Q004 are turned On. and LED D517 emits light.
If the toner is shorted (empty), the light from LED D517 passes through the lens of the Toner Cartridge.
When the photo transistor PI451 receives the light, the PI451 is turned On, and the TESEN (Pin4, IC004)
signal becomes Low.
Q008. When the nTECTL is low level, transistors Q008 and Q004 are turned On. and LED D517 emits light.
If the toner is shorted (empty), the light from LED D517 passes through the lens of the Toner Cartridge.
When the photo transistor PI451 receives the light, the PI451 is turned On, and the TESEN (Pin4, IC004)
signal becomes Low.
IC006 (CPU)
9
10
2
1
1
2
7
4
nTECTL
TESEN
(Engine Control PC Board)
(High Voltage
Board)
(Low Toner
Sensor Board)
Toner Cartridge
(Top View)
Q004
R060
C070
L012
C073
C057
R074
R069
R059
D001
+5V
+5V
GND(+5V)
Q008
1
2
CN008
CN501
D517
CN009
CN451
PI451
L005
22
SEPT 2005
Ver. 2.0
UF-7100/8100
UF-7000/8000
2.3.
PNL PC Board Block Diagram (Panel PCBs)
The PNL1 PCB consist of Panel Control CPU, Real Time Clock and other peripherals. It has no decision
making functions, which are controlled by Command Signals from the SC PCB.
The PNL2, 3 and 4 consist of LED and Switches, which are controlled by PNL1.
making functions, which are controlled by Command Signals from the SC PCB.
The PNL2, 3 and 4 consist of LED and Switches, which are controlled by PNL1.
SCN0 ~11
LED3 ~9
KEYIN0~7
CPU (V850)
nWAKUP
nSLPKY
DB[0~7]
LCD Module
PNL2
(SW/LED Board)
KEY:57
LED :6
LED :6
PNL SYSTEM DIAGRAM
RTC
(RE AL TIME
CLOCK)
S-3510ANFJ-TF
LEDC T
TX D
BZCLK
RXD
A/ D
PNL3
(SW/LED Board)
KEY :19
LED :2
LED :2
Regulator
3. 3V
IC
5V
BATLVL
3.3V
WR
SIO
SCK
RD
PNL4
LED:9
23
SEPT 2005
Ver. 2.0
UF-7100/8100
UF-7000/8000
2.4.
Shutdown / Sleep Mode
Note:
Shutdown / Sleep Modes can be selected in the User Mode.
This function reduces the power consumption in standby mode.
During Shutdown Mode, power is supplied to the Energy Saver Lamp to keep it illuminated, to the circuit
that monitors incoming Ringing signals, and to circuits that maintain Deferred communications only. The
power is recovered only when an incoming Ringing signal is detected, the time to perform a Deferred
communication has lapsed, or the Energy Saver key is pressed.
During Shutdown Mode, power is supplied to the Energy Saver Lamp to keep it illuminated, to the circuit
that monitors incoming Ringing signals, and to circuits that maintain Deferred communications only. The
power is recovered only when an incoming Ringing signal is detected, the time to perform a Deferred
communication has lapsed, or the Energy Saver key is pressed.
During Sleep Mode, power is supplied to the Energy Saver Lamp to keep it illuminated, to the circuit that
monitors incoming Ringing signals, to circuits that maintain Deferred communications, and to the circuit that
monitors incoming PC Print Data only. The power is recovered only when an incoming Ringing signal is
detected, the time to perform a Deferred communication has lapsed, when an incoming print data from a
PC is detected, or the Energy Saver key is pressed.
monitors incoming Ringing signals, to circuits that maintain Deferred communications, and to the circuit that
monitors incoming PC Print Data only. The power is recovered only when an incoming Ringing signal is
detected, the time to perform a Deferred communication has lapsed, when an incoming print data from a
PC is detected, or the Energy Saver key is pressed.
Shutdown Mode
Sleep Mode
2.5.
Option PC Board
• G3B PC Board
2nd G3 Fax Option PC Board.
• FRM8 Expansion Memory Board
Option Program and Font Memory for Expansion.
No.
Item
Recovers from
Shutdown Mode
Remark
1
When Energy Saver key is pressed
Yes
2
Deferred Communication time has lapsed
Yes
3
Ringing Signal detected
Yes
4
Off Hook (External Telephone)
Yes
5
When printing from a PC
No
Includes Internet Fax
6
When an ALARM Status indication is
displayed
displayed
No
7
When an Original is set on the ADF
Yes
No.
Item
Recovers from
Sleep Mode
Remark
1
When Energy Saver key is pressed
Yes
2
Deferred Communication time has lapsed
Yes
3
Ringing Signal detected
Yes
4
Off Hook (External Telephone)
Yes
5
When printing from a PC
Yes
Includes Internet Fax
6
When an ALARM Status indication is
displayed
displayed
No
7
When an Original is set on the ADF
Yes
24
SEPT 2005
Ver. 2.0
UF-7100/8100
UF-7000/8000
3 Signal Waveform
3.1.
Glossary of Electrical Abbreviations
Glossary of Electrical Abbreviations
Signal Name
Function
+24V
+24 VDC Power Supply
+24VIR
+24 VDC Power Supply
+3.3V
+3.3 VDC Power Supply
+5V
+5 VDC Power Supply
+5V(LD)
+5 VDC through Process Interlock SW
+5VA
+5 VDC Power Supply
+5VB
+5 VDC Power Supply
+5VP
+5 VDC Power Supply
+5VSP
+5 VDC Energy Saver Control
+ACT
ACTIVE Lamp LED Power Supply
+ALM
ALARM Lamp LED Power Supply
+DAT
DATA Lamp LED Power Supply
+SLP
Energy Saver Lamp LED Power Supply
24VGND
Ground
5V(LD)
+5 VDC through Process Interlock SW
5VGND
Ground
A
Motor Control Signal
ACL
AC Power Supply (Live)
ACN
AC Power Supply (Neutral)
ACT[+24V]
DATA Lamp LED Power Supply
ALM[+24V]
ALARM Lamp LED Power Supply
B
Motor Control Signal
BAT+
Lithium Battery
BZCLK
Buzzer Signal Output
CCLK
Serial I/F Clock
CISCLK
CIS Clock
CLK
Scan Data Transmit Clock
CLOCK_OP
CLOCK
CXD
Serial Data Command
DAT[+24]
ACTIVE Lamp LED Power Supply
Dref
Dark Reference Control
EBC3A[20]
System Address Bus
EBC3A[21]
System Address Bus
EBC3A[22]
System Address Bus
EBC3A[23]
System Address Bus
EBC3A[24]
System Address Bus
EBC3A[25]
System Address Bus
EBC3A[26]
System Address Bus
EBC3A[27]
System Address Bus
EBC3A[28]
System Address Bus
EBC3A[29]
System Address Bus
EBC3A[30]
System Address Bus
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