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CHAPTER 4
PUNCHER UNIT (OPTION)
BASIC OPERATION
I.
BASIC OPERATION .................... 4-1
A. Outline ....................................... 4-1
B. Inputs to and Outputs from
B. Inputs to and Outputs from
Punch Driver PCB ..................... 4-2
II.
PUNCH OPERATION ................. 4-5
A. Outline ....................................... 4-5
B. PUNCH OPERATION ................ 4-7
C. Horizontal Registration
B. PUNCH OPERATION ................ 4-7
C. Horizontal Registration
Operation ................................. 4-11
III. POWER SUPPLY SYSTEM ...... 4-14
1. This chapter discusses the purpose and role of each of the puncher unit’s functions, and the
principles of operation used for the puncher unit mechanical and electrical systems. It also ex-
plains the timing at which these systems are operated.
plains the timing at which these systems are operated.
The
symbol in drawings indicates transmission of mechanical drive, and signals marked by
together with the signal name indicates the flow of electrical signals.
2. In descriptions of digital circuits on the puncher unit, “1” indicates a high signal voltage level,
while “0” indicates a low signal voltage level. Voltage values differ according to circuit.
Descriptions in this chapter also assume that PCBs will not be repaired at user sites. For this
reason, descriptions of circuits on PCBs is limited to block diagrams. Two types of block dia-
grams are provided for separate functions: diagrams indicating details from sensors up to input
sections of major PCBs, and diagrams indicating details from the output sections of major PCBs
up the loads.
reason, descriptions of circuits on PCBs is limited to block diagrams. Two types of block dia-
grams are provided for separate functions: diagrams indicating details from sensors up to input
sections of major PCBs, and diagrams indicating details from the output sections of major PCBs
up the loads.
4-1
CHAPTER 4 PUNCHER UNIT (OPTION) BASIC OPERATION
I.
BASIC OPERATION
A.
Outline
The puncher unit (option) is attached on the feed path between the host machine and the finisher.
The puncher unit does not have a paper feed mechanism. Paper from the host machine is fed by
The puncher unit does not have a paper feed mechanism. Paper from the host machine is fed by
feed drive from the finisher via the puncher unit. When the trailing edge of the paper from the host
machine reaches the puncher unit, the paper stops temporarily, and the punch shaft is rotated to punch
the trailing edge of the paper. This operation is controlled by the finisher controller PCB, and each of
the parts on the finisher is driven by the punch driver PCB.
machine reaches the puncher unit, the paper stops temporarily, and the punch shaft is rotated to punch
the trailing edge of the paper. This operation is controlled by the finisher controller PCB, and each of
the parts on the finisher is driven by the punch driver PCB.
Finisher unit control system
Punch dri
v
er PCB
Punch
drive
system
Horizontal
registration
drive
system
Figure 4-101
4-2
CHAPTER 4 PUNCHER UNIT (OPTION) BASIC OPERATION
B.
Inputs to and Outputs from Punch Driver PCB
1.
Inputs to Punch Driver PCB (1/3)
Punch driver PCB
PI1P
-2
J102-3
+5V
SREGHP
SREGHP
-1
-2
J1A-1
-3
SREG1*
SREG2*
SREG3*
SREG2*
SREG3*
-9
-10
-11
J7-12
-13
-5
SREG4*
-8
-6
PAEND*
-7
-7
-4
-3
J115-2
-1
-5
-6
-7
-6
-7
-4
-3
J11-2
-1
Horizontal
registration home
position sensor
registration home
position sensor
PI3P
MS2P
-3
J104-2
+5V
PUNCHHP*
PUNCHHP*
-1
-3
J1B-2
-1
+24V
+5V
+5V
PTR1
PTR2
PTR3
PTR4
PTR5
UDROPN
FDROPN
Always “1”.
When the hole puncher is
at the home position, “0”.
at the home position, “0”.
When the punch slide
unit is at the home
position, “1”.
unit is at the home
position, “1”.
When the front door is
closed, “1”.
closed, “1”.
When a paper is detected,
“0”.
“0”.
-2
J5-1
Front door
switch
switch
Photosensor PCB
N.O.
-4
J5-3
Punch home
position sensor
position sensor
PI2P
-2
J105-1
+5V
PUNCHCLK
PUNCHCLK
-3
-5
J1B-6
-4
When the punch motor
is rotating, alternatly
between “1” and “0”.
is rotating, alternatly
between “1” and “0”.
Punch motor
clock sensor
clock sensor
Figure 4-102
4-3
CHAPTER 4 PUNCHER UNIT (OPTION) BASIC OPERATION
2.
Outputs from Punch Driver PCB (2/3)
Punch driver PCB
M2P
Horizontal registration
motor
motor
+5V
DFULL
LEDON*
According to direction of
motor rotation, changes
between + and -.
motor rotation, changes
between + and -.
When light is blocked, “0”.
When “1”, LED is ON.
The pulse signal is switched
according to motor rotation.
according to motor rotation.
B*
A*
B
A
J1A-7
-8
-9
-10
J101-4
-3
-2
-1
-1
-2
-3
-4
M1P
Punch motor
Scrap full detector PCB
J2-1
J1B-8
7
9
10
J112-3
-4
-2
-1
-2
J114-1
-2
J113-1
-2
LEDON5
LEDON4
LEDON3
LEDON2
LEDON1
LEDON4
LEDON3
LEDON2
LEDON1
-3
-2
J7-1
-6
-4
-4
-3
-5
-2
-5
J116-6
-1
-4
-3
-2
-3
-2
-5
-6
-1
-4
-3
-2
-3
-2
-5
J10-6
-1
LED5
LED4
LED3
LED2
LED1
LED PCB
PTR6
LED6
Figure 4-103