Hitachi HT-4139-28 User manual

HT-4139-28/48 Scanner
Maintenance Manual

REV0
10.02.15
HT-4139 Maintenance Manual
C o n t e n t s
１ Preface················································································································································ H1 – 1
１．１ Maintenance Contents··············································································································· H1 – 1
２ Parts and Functions····························································································································· H2 – 1
２．１ Parts ·········································································································································· H2 – 1
２．２ LEDs········································································································································· H2 – 2
２．３ Mechanica Section··················································································································· H2 – 3
２．４ Contro Section ························································································································· H2 – 4
２．５ B ock Diagram·························································································································· H2 – 5
３ Routine Maintenance·························································································································· H3 – 1
３．１ Maintenance Check List ··········································································································· H3 – 1
３．２ Consumab es····························································································································· H3 – 2
３．３ C eaning the Scanner ················································································································ H3 – 4
３．３．１ C eaning the Lower Mirror (Front), the Cover Sheet (Front)········································· H3 – 4
３．３．２ C eaning the Lower Mirror (Back), and Cover G ass (Back)········································· H3 – 5
３．３．３ C eaning the Pick Ro er, the Separator Ro er, the Reverse Ro er ······························· H3 – 6
３．３．４ C eaning the Drive Ro er ······························································································· H3 – 7
３．３．５ C eaning the Pinch Ro er ······························································································· H3 – 7
３．３．６ C eaning the Imprinting Head Pin··················································································· H3 – 7
３．３．７ C eaning P aten ··············································································································· H3 – 8
３．３．８ C eaning the Photo Sensor ······························································································ H3 – 8
３．３．９ C eaning the U tra Sonic Sensor ····················································································· H3 – 9
３．３．10 C eaning the Hopper Guide ····························································································· H3 – 9
３．３．11 C eaning the Scanner ASSY···························································································· H3 – 9
４ Diagnostics ········································································································································· H4 – 1
４．１ Diagnostic Item for each Operation·························································································· H4 – 2
４．２ The diagnosis order when parts are exchanged········································································· H4 – 3
５ Off Line Operation ····························································································································· H5 – 1
５．１ Setting Switch··························································································································· H5 – 1
５．２ Operation Item·························································································································· H5 – 1
５．３ Off Line Test····························································································································· H5 – 2
５．４ In ine Loop Test························································································································ H5 – 2

REV0
10.02.15
６ OCR Scanner Auto Ca ibration ····································································································· H6 – 1
６．１ Procedure of Auto Ca ibration ····························································································· H6 – 1
６．２ Exp anation of each Auto Ca ibration and Corrective Action ·············································· H6 – 4
７ Maintenance Too s ····························································································································· H7 – 1
７．１ Disp ay Information on Device Operation················································································ H7 – 3
７．２ Down oad·································································································································· H7 – 5
７．３ Load / Save Device Unique Information·················································································· H7 – 6
７．４ Memory Dump·························································································································· H7 – 7
７．５ Reboot ······································································································································ H7 – 8
７．６ Error Information······················································································································ H7 – 8
７．７ Work Information Viewer ········································································································ H7 – 9
７．８ On-ine Diagnosis ······················································································································ H7 – 10
８ Rep acing Parts··································································································································· H8 – 1
８．１ Preparation································································································································ H8 – 1
８．２ Rep acing Parts ························································································································· H8 – 3
８．２．１ Rap acing the Pick Unit, the Separator Ro er, the Pick Ro er, the Separator C utch,
the Oi es Drymet LF, the Oi es Bush, the Washer 1, the Washer 2, the Gear (S-P),
and the Pick Gear ··············································································································· H8 – 3
８．２．２ Rep acing the Reverse Ro er, the Gear ( Reverse 3), and the Pick Drive Gear 2·········· H8 – 3
８．２．３ Rep acing the F uorescent Lamp (Front Side)································································ H8 – 4
８．２．４ Rep acing the F uorescent Lamp (Back Side) ································································ H8 – 7
８．３ Rep acing Maintenance Parts···································································································· H8 – 10
８．３．１ Rep acing the PS ASSY ································································································· H8 – 10
８．３．２ Rep acing the MAIN P/K ASSY (CPS619 P/K) ···························································· H8 – 11
８．３．３ Rep acing the DRV P/K (CPS614 P/K) ········································································· H8 – 12
８．３．４ Rep acing the SS P/K ASSY (CPS618 P/K) ·································································· H8 – 13
８．３．５ Rep acing the Scanner ASSY (Front)············································································· H8 – 14
８．３．６ Rep acing the SS-Sensor (U tra Sonic Sensor)······························································· H8 – 16
８．３．７ Rep acing the Hopper ASSY·························································································· H8 – 17
８．３．８ Rep acing the Stacker····································································································· H8 – 18
８．３．９ Rep acing the Imprinting Head Assemb y······································································ H8 – 19
８．３．10 Rep acing the Scanner ASSY( Back)············································································· H8 – 20
８．３．11 Rep acing the Lamp Inverter (Front) ············································································· H8 – 21
８．３．12 Rep acing the Lamp Inverter ( Back)············································································· H8 – 21
８．３．13 Rep acing the Lower Mirror ASSY ··············································································· H8 – 22
８．３．14 Rep acing the Cover sheet assemb y and the Cover g ass assemb y ······························ H8 – 23
８．３．15 Rep acing the Drive Ro er ···························································································· H8 – 24
８．３．16 Rep acing the Reverse ASSY ························································································ H8 – 27
８．３．17 Rep acing the S ide Countersunk ASSY········································································ H8 – 29
８．３．18 Rep acing the Main Button ···························································································· H8 – 29
８．３．19 Rep acing Latch hook (MF) ASSY, Latch hook (MR) ASSY 換·································· H8 – 30
８．３．20 Rep acing the Pane ······································································································· H8 – 31
８．３．21 Rep acing Detection Units ····························································································· H8 – 32
８．３．22 Rep acing the R SOL ASSY ·························································································· H8 – 39
８．３．23 Rep acing the Gas Spring······························································································· H8 – 40
８．３．24 Rep acing the Stepping Motor ······················································································· H8 – 41
８．３．25 Rep acing the Soft Absorber·························································································· H8 – 42
８．３．26 Rep acing the E evator ASSY························································································ H8 – 43
８．３．27 Rep acing the Gate Shaft ASSY ···················································································· H8 – 44
８．３．28 Rep acing the Gear (ELE Shaft) ···················································································· H8 – 44

８．３．29 (Missing Number)·········································································································· H8 – 45
８．３．30 Rep acing the T1 Pinch Ro er······················································································· H8 – 45
８．３．31 Rep acing the 2 GT Pu ey····························································································· H8 – 46
８．３．32 Rep acing the MXL Be t································································································ H8 – 46
８．３．33 Rep acing the DC Motor ································································································· H8 – 47
８．３．34 Rep acing the DC Fan ····································································································· H8 – 48
８．３．35 Rep acing the Anti-vibration rubber················································································ H8 – 48
８．３．36 Anti-Static Brush············································································································· H8 – 49
８．３．37 (Missing Number)············································································································ H8 – 50
８．３．38 Rep acing the Reverse Cover ASSY·············································································· H8 – 50
８．３．39 Rep acing the Gear(SP) ································································································· H8 – 51
８．３．40 Rep acing the F/L Sensor······························································································· H8 – 52
８．３．41 Mechanism (M) ASSY Cab e Routing··········································································· H8 – 53
９ Adjusting ············································································································································ H9 – 1
９．１ Checking the Tension of the Be t······························································································ H9 – 1
９．２ Checking the Upper Guide Gap································································································ H9 – 3
９．３ Checking the Inter ock Switch (INL ASSY)············································································· H9 – 4
９．４ Checking the pressure of the Reverse Ro er ············································································ H9 – 5
９．５ Adjusting the Imprinting Gap ··································································································· H9 – 6
９．６ Checking the pressure of the Reverse Ro er ············································································ H9 – 7
９．７ Adjusting the Ribbon Ho der ···································································································· H9 – 8
１０ Appendix-A Maintenance Too s for HT-4139 ···········································································Ａ – 1
REVISION
REV
DAT E DW N.
CHKD.
AP PD.
C O N T E N T
0 2010.2.15
A.K M.O T.S ・New

REV0
10.02.15
1 Preface
HT-4139 OCR Scanner functions by connecting the host through the US interface.
When conducting Maintenance, for some procedures only the device will be tested,
while for other procedures the device must be connected to the host.
1.1 Maintenance Contents
Conte nts 1. Pre face
2.P arts and F unc tio ns
3.P erio dica M ainten ance
Routine M ain tenanc e Pro cedur es
4.D iagnos tic To o s 5.O ff Line O p erati on
6.A uto ca ibra tion
7.M ain tenanc e Too s
8.R e p ac ing P art s,
Pro ced ures on R ep acing P arts
9. A dj usting (B e t Te nsio n・G a p etc)
-H1-1-

-H2-1-
2 Parts and Functions
2.1 Parts
Main power
switch
Hopper
Sheet Guide
Power switch
Stacker-R Top Latch Button
Power Connector
Top Cover
Cover for accessing ink ribbon
Stacker-
Main Cover - L
Main Latch Button
Control Panel
Setting switch
USB Connecter

-H2-2-
2.2 LEDs
The status of the device is indicated by two panels.
Normal Mode
Normal ModeNormal Mode
Normal Mode
Power LED
（Green）
Status LED
（Orange） Action
1
The Power LED and the Status LED will be lit for .5 seconds after the Power is turned
ON.
(Lamp Check Mode)
2
Status LED will turn OFF for .2 seconds
(Initializing OS)
3
The Status LED will start blinking.
(Initilization will take about 15-3 seconds, maximum 9 seconds depending on the
device)
4
The Status LED will blink slowly
(Waiting for commands from the host）
5
The Status LED will turn off (Online operation）
It will return to step 4.
In case of unrecoverable error, the Status LED will remain turned ON
Dump Mode･･･
･･････
･･･Memory Dump for OCR Scanners during Maintenance
Power LED
（Green）
Status LED
（Orange） Action
1
The Status LED will turn OFF during initialization of the program.
2
During Dump Mode the Power LED will start blinking
Inline Loop Mode･･･
･･････
･･･Press Switch 9 to turn ON Power
Power LED
（Green）
Status LED
（Orange） Action
1
The Power LED and the Status LED will be lit for .5 seconds after the Power is turned
ON.
(LEDCheck Mode)
2
The Status LED will turn OFF during initialization of the program.
3
4
During Inline Loop Mode, the Status LED will start blinking.
(The Power and Status LED will both turn OFF, and steps 2-4 will repeat itself)
Local est Mode･･･
･･････
･･･ Press Switch 8 to turn ON Power
Power LED
（Green）
Status LED
（Orange） Action
1
The Power LED and the Status LED will be lit for .5 seconds after the Power is turned
ON.
(LEDCheck Mode)
2
Status LED will turn OFF for .2 seconds
(Initializing OS)
3
The Status LED will start blinking.
(Initilization will take about 15-3 seconds, maximum 9 seconds depending on the
device)
4
Status LED will blink for .8 seconds – 1. seconds
（Initiating Test to begin）
5
Status LED will turn OFF。
（Test On）
Download Mode････
････････
････Select Download from the Maintenance Menu
Power LED
（Green）
Status LED
（Orange） Action
1
The Power LED and the Status LED will be lit for .5 seconds after the Power is turned
ON.
(LEDCheck Mode)
2
Status LED will turn OFF for .2 seconds
(Initializing OS)
3
During Download Mode, the Status LED will start blinking. During Download, the Power
LED will remain turned ON
4
When data is being written onto the Flash ROM the POER LED wil remain turned ON.
5
When Download is finished the Power LED will start blinking
REV
1
.
2
.
15

-H2-3-
2.3 Mechanica Section
Paper feeding mechanism and paper scanning mechanism are show in the figure below.
T6 R o er
T7 R o er
I/L S ens or
P C 41 S e ns or
T8 R o e r
G ate S o e no id
E je ct M o to r T9 R o e r
T5 R o e r
T4 R o e r
Im p rin tin g head
T11 R o er
R ib on M o to r
P C5 1 S e ns or
B rake M o to r
T12 R o e r
T10 R o e r P C 52 S e ns or
P C 42 S e ns or
P C 43 S e ns or
M irro r M oto r1
M irro r M oto r2
M a in M oto r T1 M o tor
H op p er M o tor
PC2 1
S e n so r
P C 22 S e ns or
P C 20
S e n so r
P C11
S e n so r
T3 R o e r T2 R o e r T 1
R o e r
R e ve rs e
R o e r
P C 31
S en so r
P ic k M o tor
P ic k R o er
F/L S e nsor
S ep arato r R o er
U tra so nic
Sen so r
L/L S ensor
C C D1
CCD2
P a te n R o er
7.S/S Sensor
5.Pick･Separator
4.Scanner(Front)
3.Stacker
4.Scanner(Back)
6.Imprinting
2.Hopper
１． Paper Feeding mechanism
Paper Feeding mechanismdrives ro ers by the be t of the Stepping motor
(T1,Main,Eject,Brake) and sensors (PC20,21,31,41,42,43) are insta ed to contro the eve of
sheets.
２． Hopper Mechanism
Hopper has a swing mechanism by the hopper motor. Its stroke is 55mm. Detection of vertica
position is contro ed by the sensor （F/L､L/L）.
３． Stacker Mechanism
Stacker Mechanism is a free fa type. Two stackers are equipped in the device and sheets are
ejected to two trays separate y by switching gate. Ejecting speed is contro ed by the stepping
motor so that the ejected papers are a igned.
４． Scanning Mechanism
Scanning Mechanism consists of the CCD which has the CCD Sensor, Mirror, and F uorescent
Lamp) and two sets are equipped, one for front and the other for back side.（28 type has one
mechanism for the front side.）
５． Sheet Separator
To feed a sing e paper for scanning from stack in the Hopper, it consists of Pick Ro er,
Separator Ro er, and Reverse Ro er.
６． Imprint Mechanism
Dot impact printer type is insta ed for the Imprinting mechanism.
７． Mu tip e Feed Detection Mechanism
８． Two mechanisms for the dua feed detection are insta ed in the device, U tra Sonic Sensor type
and transmitted ight type (PC22 Sensor).
1.Transport

REV
1 . 2.15
-H2-4-
2.4 Contro Section
UltraSonic
Reciver
type -48 only
type -48 onlytype -48 only
type -48 only
FLASH
1Mx16bit×2
SH2 MPU
SH7145
FLASH 256KB
RAM 8KB
50MHz
EEPROM
SPI 8Kbit
FPGA
BGA256
1.2V
Video
SerDes
250Mbps Transport
Ctrl
Filter Circuit
FPGA
BGA256pin 1.2V
USB Controller
MPU
8051
RAM
8KB
EEPROM
64kbit
I2C
LSI
BGA1020pin 1.5V
Image
Processor
Image
Processor
Image
Processor
DMAC Memory
CTRL
Video Memory
256MByte
SDRAM 256Mbitx8
(16Mx16 x4 x2)
PLL
Video
SerDes
250Mbps
PLL
Clock
Gen
100MHz
FPGA
BGA256pin
CLK
DRV
Color600DPI CCD
AFE
CCD Board
CPS615-A
25MHz x2
32
32
32 32 32
24bit x50MHz 24bit x50MHz
32bit
100MHz
16bit 50MHz
Master/Slave ﾞI/F
Bus Switch
USB2.0
(Hi-Speed)
PickMotor
Main Motor
Eject Motor
Break Motor
T1 Motor
Hopper Motor
Mirror Motor(F)
Stepping
Printer
24dot
dot-impact
Ribbon Motor
DC Motor
Gate Solenoid
LEDs
PC11,20,21
41,42,43,51
PhotoDiodes
LEDs(PC22)
PhotoDiodes
UltraSonic
Transmitter
Panel LEDs
Panel SW
Switches
CoverOpen
Feed -Level
Low-Limit
ID SW
Rotary SW
Temp Sensor
Power/
State/
Suspend
Start/Stop/
Pause
SH A/D
ADC
MPU Bus
Control Board
CPS619-A (type -28)
CPS619-B (type -48)
PC22
Driver Board
CPS614-A
ADC AMP
Sonic Sensor Board
CPS618-A
Filter Circuit
FPGA
BGA256pin 1.2V
LSI
BGA1020pin 1.5V
Image
Processor
Image
Processor
Image
Processor
DMAC Memory
CTRL
Video
SerDes
250Mbps
PLL
Clock
Gen
100MHz
FPGA
BGA256pin
CLK
DRV
Color600DPI CCD
AFE
CCD Board
CPS615-A
25MHz x2
Micro
Stepping
Micro
Stepping
Micro
Stepping
Micro
Stepping
Micro
Stepping
Micro
Stepping
Solenoid
Mirror Motor(R)
Stepping