COLOUR PRINTER
d - C o l o r P 1 1 6
SERVICE MANUAL
Y110260-4
PUBLICATION ISSUED BY:
Olivetti S.p.A.
77, via Jervis – 10015 Ivrea (TO)
Italy
Copyright2009, Olivetti
All rights reserved
Preface
This manual explains the maintenance methods of d_Color P116.
This manual is prepared for the maintenance person. In regard to the handling methods of d_color P116,
please refer to the User’s Manual.
Note!
• Contents of this manual is subject to change without notice.
• While all reasonable efforts have been made to make this document as accurate
and helpful as possible, we make no warranty of any kind, expressed or implied,
as to the accuracy of the information contained herein. Oki Data assumes no
responsibility to the damages caused or claimed to have been caused by the user
as a result of repair, adjustment and/or change using this manual.
• Parts of this product are delicate and can be damaged unless properly handled. We
strongly recommend the user to maintain the product at the hand of the registered
maintenance person of our company.
• Before starting the maintenance work, please neutralize the static electricity.
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Table of contents
1 CONFIGURATION ................................................................................................ 7
1.1 System Configuration ........................................................................................................ 7
1.2 Structure of Printer ............................................................................................................ 8
1.3 Offer of Options ................................................................................................................. 9
1.4 Specifications ................................................................................................................... 10
1.5 Interface Specification ..................................................................................................... 13
1.5.1 USB Interface Specification (d-Color P116)........................................................ 13
1.5.1.1 Outline of USB Interface..................................................................... 13
1.5.1.2 USB Interface Connector and Cable .................................................. 13
1.5.1.3 USB Interface Signal .......................................................................... 13
1.5.2 Network Interface Specification (d-Color P116) ................................................. 14
1.5.2.1 Outline of Network Interface............................................................... 14
1.5.2.2 Network Interface Connector and Cable ............................................ 14
1.5.2.3 Network Interface Signal .................................................................... 14
2. OPERATION DESCRIPTION ............................................................................15
2.1 Electrophotographic Process Mechanism ....................................................................... 15
2.2 Printing Process .............................................................................................................. 20
3. PRINTER INSTALLATION ................................................................................30
3.1 Precautions and Prohibition ............................................................................................ 30
3.2 Printer Unpacking Procedure .......................................................................................... 32
3.3 Printer Installation Instructions ........................................................................................ 33
3.4 Packed Units and Attachments ...................................................................................... 34
3.5 Assembly Procedure ....................................................................................................... 35
3.5.1 Printer Main Body ............................................................................................... 35
3.5.2 Power Cable Connection .................................................................................... 41
3.5.3 Installation of Optional Components................................................................... 43
3.5.4 Confirmation of recognition of optional items ..................................................... 47
3.6 Menu Map print ............................................................................................................... 48
3.7 Network Information Print ............................................................................................... 49
3.8 Connection Procedures ................................................................................................... 50
3.9 Checking of User Paper ................................................................................................. 52
4. REPLACEMENT OF PARTS ............................................................................53
4.1 Precautions on the replacement of parts ....................................................................... 53
4.2 Part replacement methods .............................................................................................. 55
4.2.1 Left side cover .................................................................................................... 55
4.2.2 Right side cover .................................................................................................. 56
4.2.3 Rear cover (Top/Bottom)..................................................................................... 57
4.2.4 Front cover.......................................................................................................... 58
4.2.5 Top cover assembly ............................................................................................ 59
4.2.6 Top cover ............................................................................................................ 60
4.2.7 LED assembly/ LED assembly spring ................................................................ 61
4.2.8 RFID assembly ................................................................................................... 62
4.2.9 Control pane assembly ....................................................................................... 63
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4.2.10 WHP board ....................................................................................................... 64
4.2.11 Feeder unit ........................................................................................................ 65
4.2.12 Manual feeder unit ............................................................................................ 66
4.2.13 Face up tray...................................................................................................... 67
4.2.14 Guide eject assembly ....................................................................................... 68
4.2.15 Eject roller......................................................................................................... 69
4.2.16 Plate shield front ............................................................................................... 70
4.2.17 Color registration assembly .............................................................................. 71
4.2.18 Plate shield rear................................................................................................ 72
4.2.19 PRS board (toner sensor board)/ Gear idle dram............................................. 73
4.2.20 Main motor/ Solenoid........................................................................................ 74
4.2.21 Belt motor/ High voltage board/ Cover open switch ......................................... 76
4.2.22 Low voltage power supply/ Low voltage fan ..................................................... 77
4.2.23 TB3 Board (Main Board)................................................................................... 78
4.3 Lubricating points ............................................................................................................ 79
5. MAINTENANCE MENUS .................................................................................. 92
5.1 System maintenance menu (For maintenance personnel) ............................................ 92
5.2 Maintenance utility ........................................................................................................... 95
5.3 Self-diagnostic mode ...................................................................................................... 95
5.3.1 Operator panel.................................................................................................... 95
5.3.2 Normal self-diagnostic mode (Level 1) ............................................................. 98
5.3.2.1 Activation method for self-diagnostic mode (Level 1)....................... 99
5.3.2.2 Deactivation of self-diagnostic mode................................................ 99
5.3.3 Switch scan test................................................................................................ 99
5.3.4 Motor clutch test ............................................................................................... 102
5.3.5 Test print ........................................................................................................... 104
5.3.6 Color registration adjustment test......................................................................109
5.3.7 Print density adjustment test .............................................................................110
5.3.8 Indication of consumable part counters.............................................................112
5.3.9 Indication of printed page counters ...................................................................113
5.3.10 Factory/Shipping switching ..............................................................................113
5.3.11 Setup of self-diagnostic function ......................................................................114
5.3.12 Indication of LED head serial number .............................................................115
5.3.13 Details of panel indications ............................................................................. 116
5.4 Settings after Parts Replacement ................................................................................. 126
5.4.1 Notes when replacing Main Board TB3 ........................................................... 126
5.5 About the manual setting of density correction ........................................................... 130
6. REGULAR MAINTENANCE .......................................................................... 131
6.1 Recommended substitutes ............................................................................................ 131
6.2 Cleaning ......................................................................................................................... 131
6.3 Cleaning LED lens array .............................................................................................. 131
6.4 Cleaning the pick-up roller ............................................................................................ 133
6.5 Cleaning the inside of the printer ................................................................................. 134
7. TROUBLESHOOTING PROCEDURES ..........................................................136
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7.1 Precautions prior to repair ............................................................................................ 136
7.2 Items to be checked prior to taking action on abnormal images ............................... 136
7.3 Precautions when taking action on abnormal images ................................................. 136
7.4 Troubleshooting method ................................................................................................ 136
7.4.1 LCD Message List ............................................................................................ 137
7.4.2 Preparing for troubleshooting ........................................................................... 150
7.4.2.(1) LCD Display Malfunction................................................................ 152
7.4.2.(2) Irregular Operation of the device after turning on the power ......... 153
7.4.2.(3) Paper Feed Jam (Error 391:1st tray) ............................................. 162
7.4.2.(4) Paper Feed Jam (Error 390: Multipurpose tray) ............................ 164
7.4.2.(5) Paper transport jam (Error 381) ..................................................... 166
7.4.2.(6) Paper Exit Jam (Error 382) ............................................................ 171
7.4.2.(7) Paper Size Error (Error 400) .......................................................... 174
7.4.2.(8) ID Unit Up-Down Error (Service Call 140-143) .............................. 175
7.4.2.(9) Fuser Error (Error 170-177) ........................................................... 176
7.4.2.(10) Motor Fan Error(Error 127) .......................................................... 177
7.4.2.(11) Print Speed is Slow (Low Performance) ...................................... 178
7.4.2.(12) LED head is not recognized(Error 131,132,133,134) .................. 178
7.4.2.(13) Toner cartridge is not recognized (Error 540, 541, 542, 543) ...... 179
7.4.2.(14) Fuse Cut Error (Error 150-155).................................................... 180
7.4.2.(15) Dew Condensation Errors (Error 123) ......................................... 181
7.4.2.(16) RFID Related Error (Error 610-613).............................................. 182
7.4.3 Image Problem Troubleshooting....................................................................... 183
7.4.3.(1) Color is totally pale (Figure 7.2 A ) ................................................. 184
7.4.3.(2) Background is dirty (Figure 7.2 B ) ................................................ 185
7.4.3.(3) Blank Print (Figure 7.2 C ) ............................................................. 186
7.4.3.(4) Vertical lines are printed................................................................. 187
7.4.3.(5) Cyclic Print Trouble (Refer to Figure 7.2 E ) .................................. 188
7.4.3.(6) Color drift is wide. .......................................................................... 189
7.4.3.(7) Solid Black Print............................................................................. 190
7.4.4 Response after Flash compulsive initialization ................................................. 191
7.4.5 Network Troubleshooting.................................................................................. 192
7.5 Fuse Checking .............................................................................................................. 193
8. CONNECTION DIAGRAMS ............................................................................ 194
8.1 Check of resistance values .......................................................................................... 194
8.2 Component layout ........................................................................................................ 197
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Figure 1-1-1
1 CONFIGURATION
1.1 System Configuration
d-Color P116
The system configuration of this product is shown in Figure 1-1-1.
JST12
4
FLASH
8M
Stand-by
FAN
CU
CC1 ASIC
CiF2 ASIC
PPC750CL(400Mz)
JST3
Network I/F
DCON I/F
LSYNC
LEISUS
Command I/F
OPTION
RAM
DIMM
slot x 1
3
4
PU
1st
P.E
5V, 24V
0VL,0VP
14
Color Blur,
Density,
Thermistor signal
EEPROM
20MHz
5V→3.3V
5V→1.5V
Regulator
JST14
ELC12
ASIC(ARMORED)
75Ω
12
Environment Temoerature/
Humidity Signal,
High Pressure I/F, Cover Open
Belt Unit
BELT
FUSE
ELC10
ELC10
10
ELC5
JST5
5
RFID
Operator
Panel
ELC7
JST7
7
High Voltage Power Unit
Cover
Open Sw
ENV Sensor
UP/DOWN
Sensor
AMP2
3333
K-ID Y-ID M-ID C-ID
LED
FUSE
LED
FUSE
LED
FUSE
LED
FUSE
222 2
Toner Sensor PCB
ID Fuse-Cut terminal
C Toner
Sensor
M Toner
Sensor
Y Toner
Sensor
K Toner
Sensor
RFID
PCB
222
2
K-
Tag
Y-
Tag
M-
Tag
C-
Tag
K-
ANT
Y-
ANT
C-
ANT
M-
ANT
Operation Panel PCB
K LED HEAD
ELC24
ELC24
Y LED HEAD
ELC24
ELC24
M LED HEAD
ELC24
ELC24
C LED HEAD
ELC24
ELC24
24
24
24
24
FAN
AC
HRS2-10
AC-SW
2
2
2
3
Low Voltage Power Unit
JST3
JST3 JST3
AC Inlet
Fuser Unit
Heater Thermistor x 4
Consumable Fuse
JST17
EL
17
Density
Sensor
5
MOLEX10
HRS2-10
FUSE
10
Temperature
Sensor
LOW-TH
FRM-TH
UP-TH
SIDE-TH
EXIT
Sensor
Rear Sensor Relay PCB
Reg-R
Sensor
AMP3
AMP3
HOP
Solenoid
JST4
AMP4AMP4
BELT
M
4
4
MOLEX6
HEAT
M
IDUP
M
AMP4
AMP5
4
JST2
2
AMP10
10
AMP4
4
ID
M
HOP
M
Reg-L
Sensor
3
MOLEX5
MOLEX5
AMP4
AMP10
AMP5
IN1
Sensor
IN2
Sensor
WR
Sensor
Front Sensor PCB
AMP5
5
USB 2.0
Belt Consumable Fuse
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Figure 1-2
1.2 Structure of Printer
The insides of d-Color P116 printers are composed of the following parts.
• Electronic photography process part
• Paper path
• Control part (CU part/PU part)
• Operation panel
• Power supply parts (high voltage part/low voltage part)
Figure 1-2 shows the composition of the printer.
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1.3 Offer of Options
This product can be installed with the following option.
(1) Additional memory board 256/512MB 200pin DDR RAM
DIMM Installation of the additional memory board is
recommended for banner-sheet printing.
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1.4 Specifications
d-Color P116Category Item
Exterior
Dimension
Width of print
Engine
speed(A4)
Fast print time
(A4)
Resolution
CPU
RAM
ROM
Power
Consumption
Operating
Environment
(temperature)
Operating
Environment
(humidity)
Width
Depth
Height
Weight
Width of print
Monochrome
Color
Monochrome
Color
Warm-up time
Low noise mode
LED head
Maximum input resolution
Output resolution
Step
Economic mode
Core
Level 1 cache
Level 2 cache
Clock
Bus width
Resident
Option
Program
Power input
Power saving mode
Idle
Normal operation
Peak
In operation
At stand-by
In storage (1 year max.)
At transport (1 month max.)
At transport (1 month max.)
In operation
At stand-by
In storage
At transport
372mm
478mm
290mm
about 21kg
A4
20ppm
16ppm
10sec
12sec
80sec
Unavailable
600dpi
600 × 1200dpi
True 600 × 1200dpi
True 600 × 600dpi
4 steps 600 × 600dpi
toner saving by lowering light
PowerPC750
32KB
256KB
400MHz
64bit
128MB
256/512MB DIMM
64MB+2MB
100-127VAC (Range 99-140VAC) /
220-240VAC (Range 198-264VAC)
Below 14W
100W(average)
400W
980W
10°C-32°C,17°C-27°C
(temperature at full color printing with quality guaranteed)
0°C-43°C, power off
-10°C-43°C with drum and toner
-29°C-50°C with drum and without toner
-29°C-50°C with drum and toner
20%-80%, 50%-70%
(humidity at fullcolor printing with quality guaranteed)
Max. wet bulb temperature : 25°C
10%-90%, Max. wet bulb temperature : 26.8°C with power off
10%-90%, Max. wet bulb temperature : 35°C
10%-90%, Max. wet bulb temperature : 40°C
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d-Color P116 Service Manual
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d-Color P116Category Item
Life
Operation
noise
Paper handling
Paper size
Min. paper size
Printer life
Duty cycle (M=L/12,A=L/12/5)
MTBF (2.3% duty)
MTBF
MTTR
Toner life
(5% duty)
Image drum life
Transcript belt life
Fuser life
In operation (ISO 7779 front)
Printing on one side
At stand-by (ISO 7779 front)
Power saving mode
Paper feeding capacity (1st tray)
Paper feeding capacity
(manual feeder)
Paper output
Legal/universal or A4 cassette/
Universal cassette
Manual feeder
1st tray
Manual feeder
50,000pages (size A4)
Automatic counter reset
6.5B (A)
legal 13/13.5/14, letter,
executive, A4, A5, B5, A6, C5, DL, Com-9, com-10,monarch,
custom size, government postcard, reply paid postcard, end-
opening envelope, banner up to 1200mm (In case length is
over 356, width would be up to 210 to 215.9)
about 2,500pages (black)
AOS about 2,000pages (color)
ODA/OEL about 2,500pages (color)
about 1,700pages (black)
AOS about 1,200pages (color)
ODA/OEL about 1,700pages (color)
OEL about 1,500pages (black)
AOS about 1,000pages (black)
AOS about 1,500pages (color)
OEL about 1,000pages (color)
OEL about 700pages (black)
AOS about 500pages (black)
AOS about 500pages (color)
OEL about 700pages (color)
starter toner
(Appended)
Standard
New drum 1st one
S type
New drum 1st one
300,000 pages or 5 years
350,000 pages per month max.
5,000 pages per month average
6,000 hours
35,000 pages
20 minutes
ODA about 1,000 pages (black)
OEL/AOS about 500pages (black)
ODA about 1,000 pages (color)
OEL/AOS about 500pages (color)
15,000 pages approx.(3 pages/ job)
9,000 pages approx.(1 page/ job)
20,000 pages approx.(at continuous print)
Automatic drum counter reset
50,000pages (size A4, 3 pages/job) Automatic counter reset
3.7B (A)
back grand level
legal/universal cassette 250 sheets (70kg)
1 sheet
150 sheets (70kg) face down/
one sheet (10 postcards) face up tray
1st cassette: legal13/13.5/14, letter, executive, A4, A5, B5,
A6, postcard
100mm × 148mm
100mm × 148mm
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d-Color P116 Category Item
Paper
thickness
Operation
panel
Status
switch/Sensor
Communication
Interface
Emulation
Font
Shipping setup
Others
1st tray
Manual feeder
duplex (manual)
LCD
LED (color)
Switch
Paper tray empty
Paper low
Toner low
Cover open
Fuser temp.
Paper size
Stacker full
Standard (on circuit board)
Option for OEM user
On/off switch
Standard
Option (Removable)
Emulation switch
Bit map
Type face
Scalable 1
Type face
Scalable 2
Type face
Scalable 3
Type face
Rasterizer
Barcode
OCR
Japanese PCL font
Japanese PS font
Japan
USB-IF logo
Windows logo
Operation by UPS
Hi-Speed USB
64-120gsm
64-203gsm
64-105gsm
16 characters in 2 line(Roman alphabet) No paper size indicated
2 (Green × 1, dark amber × 1)
6
Available
N/A
Available (Y.M.C.K)
Available
Available
N/A
N/A
Ethernet
N/A
Automatic
PCL 6 (XL3.0 and PCL5c)
PostScript 3 (clone), SIDM (IBM-PPR,EPSON-FX)
N/A
Auto
MonoType
1
MonoType MicroType
80
MonoT ype TrueType
10
Adobe T ype 1
80
MonoType UFST 4.0
USPS, UPC-A, UPC-E, EAN/JAN-8, EAN/JAN-13,
Iinterleaved2of5, Code39, Code128, EAN/UCC-128,
CODABAR, ZIP+4 POSTNE
OCR-A,B
N/A
N/A
N/A
Available
Available
Operation by UPS (outage free power supply) is not
guaranteed. (Do not use UPS)
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34
1
Name of Signal Function
1 Vbus Power Supply (+5V) (red)
2 D - Data transmission (white)
3 D + Data transmission (green)
4 GND Signal ground (black)
Shell Shield
1.5 Interface Specification
1.5.1 USB Interface Specification (d-Color P116)
1.5.1.1 Outline of USB Interface
(1) Basic Specification
USB (d-Color P116 supports Hi-Speed USB )
(2) Transmission Mode
Hi speed (480Mbps±0.05% max.)
(3) Power Control
Self power device
1.5.1.2 USB Interface Connector and Cable
(1) Connector
• Printer side: B receptacle
Upstream port
Equivalent of UBR24-4K5C00 (made by ACON)
Connector pin arrangement
• Cable side: B plug (off)
(2) Cable
Cable length: Specification Cable of USB2.0 spec. of less than 5m.(less than 2m is
recommended)
(Shielded cable is used here.)
1.5.1.3 USB Interface Signal
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18
1.5.2 Network Interface Specification (d-Color P116)
1.5.2.1 Outline of Network Interface
Table1.5.2 Basic Specification of Network Interface (d-Color P116)
Protocol Family Network Protocol Application
TCP/IP TCP,UDP, IPv4/v6,
LPR, RAW, IPP,FTP
ICMP, ARP, IGMP
HTTP, Telnet
SNMPv1/v3
DHCP/BOOTP
DNS, DDNS
WINS, UPnP, Bonjour
SMTP
SNTP
WindowsRally
(WSD Print, LLTD)
NetBEUI NetBIOS SMB
1.5.2.2 Network Interface Connector and Cable
(1) Connector
100 BASE-TX/10 BASE-T (automatic switch, no simultaneous use)
Pin No. Signals Signal Direction Functions
1 TXD+ FROM PRINTER Send Data +
2 TXD- FROM PRINTER Send Data 3 RXD+ TO PRINTER Received Data +
4 - - Unassigned
5 - - Unassigned
6 RXD- TO PRINTER Received Data 7 - - Unassigned
8 - - Unassigned
Connector pin arrangement
(2) Cable
Unshielded twist pair cable with RJ-45 connector (Category 5 is recommended.)
1.5.2.3 Network Interface Signal
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-
-
-
-
-
-
Electrification roller
OPC drum
Power
supply
unit
2. OPERATION DESCRIPTION
2.1 Electrophotographic Process Mechanism
(1) Electronic photography Process
Electronic photography process is outlined as follows:
1. Electrification
Electric voltage is impressed on CH roller and the surface of CPC drum is electrified.
2. Exposure
LED head radiates light on the electrified surface of OPC drum following the image
signal. Electric charge on the radiated OPC drum surface abates depending on the
intensity of light and static latent image is formed on the OPC drum surface.
3. Development
Electrified toner is adhered to the static latent image on the OPC drum by static electricity and a visible image is formed on the OPC drum surface.
4. Transcript
A sheet of paper is put upon the OPC drum surface and the toner image is transferred
on the paper by impressing electric charge on its back side by the transcript roller.
5. Drum Cleaning
Drum cleaning blade eliminates the remaining toner on the OPC drum after transfer.
6. Belt Cleaning
Belt cleaning blade eliminates the remaining toner on the belt.
7. Fusing
The toner image on the paper is fused by adding heat and pressure.
(2) Electrification
Electric voltage is impressed on electrification roller touching on the OPC drum surface and
thus the OPC drum surface is electrified.
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-
-
-
-
-
-
-
-
-
LED head
Electrified roller
OPC drum
OPC drum
Paper
Power
supply
unit
LED head
-
-
-
-
-
-
-
-
-
-
-
-
Electrified roller
Development roller
Sponge roller
OPC drum
(3) Exposure
The light emanated from the LED head is radiated on the OPC drum surface. The electric
charge on the radiated portion of the OPC drum surface abates by intensity of the light and a
static latent image is formed on the OPC drum surface.
(4) Development
Adhere the toner to the static latent image on the drum surface and change it to the toner image.
1. The sponge roller let the toner adhere to the development roller.
2. The static latent image on the OPC drum surface is changed to a visible image by the toner.
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-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
+
-
+
-
+
-
+
-
+
-+-+-+-+-+-
+
-+-
+
-+-
+
-+-
+
OPC drum
Transcript roller
Paper
Transport belt
Power
supply
unit
(5) Transcript
A sheet of paper is placed under the OPC drum surface and is given electric charge from the
back side by the transcript roller. When a high voltage is impressed on the transcript roller, the
electric charge generated by the transcript roller moves over to the paper surface at the
interfacing part of the transcript roller and the toner is absorbed to the paper surface from the
OPC drum surface.
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d-Color P116 (belt fusing method)
Thermostat
Thermistor
Heat roller
Halogen lamp
Paper
Pad
Thermistor
Backup roller
Belt
Paper Type Setting
Light
Medium
Heavy
U.Heavy
Paper Thickness
Thin
Thick
Temperature Setting
Middle temp.
High temp.
Middle temp.
Low temp.
Setting of Fusing Temperature
(6) Fusing
The toner image transferred on the paper is impressed with heat and pressure and is fused to
the paper when the paper passes through the heat roller and the back-up roller.
Further, a thermostat is equipped for the safety’s sake and if the temperature of the heat roller
rises above a certain degree, the thermostat opens and shuts the power supply to the heater.
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Waste toner area
Drum cleaning blade
ID unit
Toner cartridge
Belt waste toner box
Belt cleaning blade
Transport belt
(7) Drum Cleaning
The toner not transferred and remaining on the OPC drum is scraped away by the drum
cleaning blade and is collected in the waste toner area of the toner cartridge.
(8) Belt Cleaning
The toner remaining on the transcript belt is scraped away by the belt cleaning blade and is
collected in the waste toner box of the transcript belt unit.
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Transport belt
Belt
Heat roller
Backup roller
Halogen lamp
Paper feeding roller
Sub roller
Resist roller L
Resist roller U
Face down stacker
Face up stacker
Manual feeder
2.2 Printing Process
The paper feeded from tray 1 is transported by the resist roller L and transport roller. When the
paper is feeded by the manual feeder, it is transported by the resist roller U. Then, the paper
transported is developed into a toner image not yet fused on the paper through electronic
photography process in the order of KYMC. After that, the image is fused by heat and pressure
while passing through the fusing unit. After fusing, the paper is discharged on the face up or face
down stacker through the discharge method opted by opening or shutting of the face up stacker.
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Resist roller U
(drive)
Hopping roller
(drive)
Paper
Sub roller
(drive)
Hopping motor
(counterclockwise turn)
Resist roller L
(stop)
WR sensor
Solenoid lever
(solenoid on)
IN2 sensor
IN1 sensor
IN1 sensor
Resist roller U
(drive)
Hopping roller
(stop)
Paper
Sub roller
(stop)
Hopping motor
(counterclockwise turn)
Resist roller L
(drive)
WR sensor
Solenoid lever
(solenoid off)
IN2 sensor
Figure 2-1 Figure 2-2
Resist roller U
(drive)
Hopping roller
(stop)
Sub roller
(stop)
Hopping motor
(counterclockwise turn)
Resist roller L
(drive)
WR sensor
Solenoid lever
(solenoid off)
IN 2 sensor
IN 1 sensor
Paper
Figure 2-3
(1) Paper Feeding from the 1st Tray
1. As shown in Figure 2-1, while the solenoid is on and the resist motor turns counterclockwise,
a sheet of paper is transported until the IN1 sensor is on. (When the solenoid is on, the paper
feeding roller operates.)
2. When the paper turns the IN1 sensor on, a certain more sheets of paper are transported
and thrusted against the resist roller. (This process corrects the paper skew.)
3. As shown in Figure 2-2, turn the solenoid off and transport the paper by the resist roller L.
(When the solenoid is off, the resist roller operates.)
(2) Paper Feeding from Manual Feeder
1. Thrust the paper against the resist roller U. (This process corrects the paper skew.)
2. As shown in Figure 2-3, the resist motor turns counterclockwise and the paper is
transported by the resist roller U. (When the resist roller turns counterclockwise, the resist
roller U drives.)
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Figure 2-4
Transport belt
Transport rollers
Transport belt motor
Drums
KYMC
(3) Transport Belt
1. When the transport belt motor turns in the direction of the arrow, the transport belt starts
to operate. The belt unit is composed of drums of each color above and the transport rollers
immediately below them with the transport belt in-between. When a certain voltage is
impressed, the transport belt and the transport rollers send the paper on the transport belt
to the fuser while transferring the toner images on the drums of each color.
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Movement of each ID unit at the time of color printing
C-ID unit
C-ID unit down
M-ID unit down
Y-ID unit down
K-ID unit down
M-ID unit
Y-ID unit K-ID unit
C-ID unit
M-ID unit
Y-ID unit K-ID unit
Lift-up motor
(counterclockwise turn)
Lift-up motor
(clockwise turn)
Movement of each ID unit at the time of monochrome printing
C-ID unit lift-up
M-ID unit lift-up
Y-ID unit lift-up
K-ID unit down
Figure 2-5
Figure 2-6
(4) Up and Down Movements of ID Units
1. The up and down movements of the ID units are performed by the drive of the lift-up motor.
2. Figure 2-5 shows movements of each ID unit at the time of printing. When the lift-up motor
turns clockwise, the lift-up link slides to the left and each ID unit is in the state of down as
shown in Figure 2-6. That condition enables color printing.
3. Figure 2-6 shows movements of each ID unit at the time of monochrome printing. When the
lift-up motor turns counterclockwise, the lift-up link slides to the right and the units other than
K-ID are in the state of up as shown in Figure 2-7. That condition enables monochrome
printing.
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Fuser motor
(counterclockwise turn)
Output roller
(drive)
Heat roller (drive)
Fuser unit
Figure 2-7
Figure 2-8
Fuser motor
(clockwise turn)
Output roller
(stop)
Heat roller (stop)
Cover open gear
Fuser unit
(5) Fusing Unit and Paper Output
1. As shown in Figure 2-7, the fuser unit and output roller are driven by the pulse motor. When
the fuser motor turns counterclockwise, the heat roller turns. This roller fuses the toner
image ‘on the paper with heat and pressure.
2. At the same time, the output roller turns and ‘sends out the paper.
(6) Cover Open Operation of Color Registration Sensor and Density Sensor
1. As shown in Figure 2-8, when the fuser motor turns clockwise, the cover open gear also
turns and the covers of the color registration sensor and the density sensor will open.
2. When the fuser motor turns counterclockwise, interlocking of the cover open gear is
released and the covers of the color registration sensor and the density sensor will close.
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Belt waste toner box
Belt cleaning blade
Transport belt
Color Registration sensor
Belt motor
Color Registration sensor
Color Registration sensor
Sensor shutter
Right color registration pattern
Left color registration pattern
Outline of Color registration Method
Color registration is performed by reading the correction pattern printed on the belt using the sensor
placed in the sensor shutter equipped under the belt unit. The correction is made by identifying the
pattern using this sensor.
Timing of automatic activation of color registration:
• At the time of switching the power on
• At the time of closing the cover after opening it over 5 seconds
• When over 400 sheets are printed after a color registration was made previously
Correction errors can be caused by the amount of toner which generates the pattern, toner stain
on the sensor, malfunction of shutter opening and closing. However, as an error may not be
displayed on the operation panel, it may be necessary to confirm the error display by forcible
execution of the color registration test function (2.4.1.5.3) using the maintenance utility.
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Error Confirmation Method and Countermeasure
Errors should be confirmed by using the color registration test function of the maintenance utility
(2.4.1.5.3).
Countermeasures to each error are:
• SNS CARIBRATION(L or R), DYNAMICRANGE(L or R)
Confirmation 1 When the above is displayed, check the connection of the sensor cable
(FFC). If the connection is found abnormal, correct it to the normal state.
Confirmation 2 Check the surface of the sensor to confirm if it is stained by the toner,
paper dust, etc. If stained, wipe the surface neatly.
Confirmation 3 Confirm adequacy of opening and shutting of the sensor shutter by
MOTOR& CLUTCH TEST of the maintenance utility. If a malfunction is
found, replace the shutter unit .
• BELT REFLEX ERR
Confirmation 4 When the above is displayed, confirm the cleaning state of the toner
remaining on the belt surface besides the above confirmations 1, 2 and
3. Remove the belt unit and confirm if the belt surface is cleaned neatly
by turning the drive gear placed in the left rear side.
Replace the belt unit if the toner remains on the belt surface and the
surface is not cleaned despite of turning of the drive gear.
• (Y or M or C) LEFT. (Y or M or C) RIGHT, (Y or M or C) HORIZONTAL
Confirmation 5 When the above is displayed, confirm if it is the toner insufficiency that has
caused NG color generation and replace the cartridge if necessary.
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Density sensor
Density correction pattern
Belt waste toner box
Belt cleaning blade
Transport belt
Belt motor
Sensor shutter
Outline of Density Correction Method
Density correction is made by identifying the correction pattern printed on the belt using the sensor
installed in the sensor shutter under the belt unit.
Timing of automatic activation of density correction
• When the circumstance is significantly different from the previous work performance at the
time when the power is to be switched on.
• When at least one of the 4 ID count values is almost new at the time when the power is to
be switched on.
• When the ID count value is over 500 after the previous work performance.
Correction error can be caused by the amount of toner which generates the pattern, toner stain on
the sensor, malfunction of shutter opening and closing. However, as an error may not be displayed
on the operation panel, it may be necessary to confirm the error display by forcible execution of
the density correction test function (2. 4. 1. 5. 3) using the maintenance utility.
Error Confirmation Method and Countermeasure
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Errors should be confirmed by using the density correction test function of the maintenance utility
(2.4.1.5.4).
Countermeasures to each error are:
• CALIBRATION ERR, DENS SENSOR ERR
Confirmation 1 When the above is displayed, check connection of the sensor cable. If the
connection is found abnormal, correct it to the normal state.
Confirmation 2 Check the surface of the sensor to confirm if it is stained by the toner,
paper dust, etc. If stained, wipe the surface neatly.
• DENS SHUTTER ERR
Confirmation 3 Confirm adequacy of the opening and shutting of the sensor shutter by
MOTOR&CLUTCH TEST of the maintenance utility. If a malfunction is
found, replace the shutter unit.
• DENS ID ERR
Confirmation 4 Remove the ID unit to confirm if the surface of the drum is covered with
abnormal amount of toner. Then, replace the LED head if the focus blurs
or replace the ID unit.
When a new ID unit is to be used for trial, attach a treatment device to the
ID unit lest the fuse breaks ( refer to p.132).
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Shading board
Shutter
Toner sensor
(light reception sensor)
Luminous LED
Toner cartridge lever
Toner stir
Toner Sensor Detection Principle
Detection of the low toner is performed by the toner sensor (light reception sensor) installed inside
the equipment and the luminous LED installed inside the cartridge. The shading board is installed
inside the ID and rotates synchronizing with the toner stir. A shutter is attached to the ID. The
shutter synchronizes with the cartridge operation lever and the toner sensor can detect whether
the cartridge is installed properly. If the toner sensor is stained by the toner, etc., or the ID unit and
the toner sensor are not facing each other as specified due to improper setting of the ID unit or for
other reason, the detection may not be executed normally, resulting in a toner sensor error.
Toner Counter Principle
After the image data is developed into 2 value data to enable printing using the printer, the print
dot number is counted by the LSI. The amount of the toner used is counted from the above count
value and the remaining amount is displayed. On the other hand, detection of the low toner by the
toner sensor is physically made when the amount of the toner remaining in the cartridge comes
to be under certain amount.
Principles of ID, Belt and Fusing Counter
ID Counter : 1 count is the value of one third of the amount of drum rotation when three A4
sheets of paper are continuously printed.
Belt Counter : 1 count is one third of the amount of the belt rotation when three A4 sheets of
paper are continuously printed.
Fusing Counter : Standard is the length of Legal 13 inches sheet of paper. 1 count is the sheet of
paper under that length and when the length is more than that, the number of
count is decided by multiples of Legal 13 inches.(Number under the decimal
point is rounded up.)
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3. PRINTER INSTALLATION
3.1 Precautions and Prohibition
• Do not install the printer in the vicinity of high temperature or fire.
• Do not install the printer at the place where a chemical reaction may take place (laboratory, etc.).
• Do not install the printer near flammable solution like alcohol, thinner, etc.
• Do not install the printer at the place where a small child can reach.
• Do not install the printer at an unstable place (unsteady frame, tilted place, etc.).
• Do not install the printer at a highly humid or dusty place or under the direct sunshine.
• Do not install the printer under the environment of sea breeze or caustic gas.
• Do not install the printer at a highly vibrating place.
• When you drop the printer or damage the cover, remove the power plug from the outlet and contact
the Customers’ Service Center.
Electric shock, fire or injury may occur.
• Do not connect the power cord, printer cable and earth wire as otherwise directed by the Manual.
A fire may break out.
• Do not insert a thing in the vent hole.
Electric shock, fire or injury may occur.
• Do not place a cup with water on the printer.
Electric shock or fire may occur
• Do not touch the fuser unit when you open the printer cover.
Burn may occur.
• Do not throw the toner cartridge or image drum cartridge into fire.
Burn may occur by the dust explosion.
• Do not use a highly flammable spray near the printer.
Fire may break out as there are high temperature parts inside the printer.
• When the cover becomes abnormally hot, a smoke arises or a strange odor comes out, remove
the power plug from the outlet and contact the Customers’ Service Center.
Fire may break out.
• When liquid like water drops inside the printer, remove the power plug from the outlet and contact
the Customers’ Service Center.
Fire may break out.
• When a thing like a clip drops inside the printer, remove the power plug from the outlet and take
out that thing.
• Do not operate or disassemble the printer as otherwise directed in the Manual.
Electric shock, fire or injury may occur.
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