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Canon MF6530 Service Manual - Page 52

Functional Block Diagram, 1.3 Image Processor PCB - firmware

UPC - 013803056037

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Chapter 2 2.1.2 Functional Block Diagram 0011-3538 J1701 J318 Telephone line Reception Transmission SR2003 SR2001 SL2002 M2001 SR2004 SR2002 SL2003 SL2001 SR401 M401 SL SL SL M M J2006 J2005 J2008 J2007 J2004J2003J2001J2002 J451 Contact snsor J460 PC LAN I/F Speaker*1 J406 J401/ J402 J10/J11 To Power supply PCB Control panel J411 J410 J412 J409 J408 Analog processor PCB J404 J403 Network PCB*2 J1300 J309 J308 Image processor PCB J304 J314 J1203 Modem PCB*1 Mojular jack PCB*1 J1200 J1201 J1202 J1800 J313 J103 J1921 J1924 J1922 NCU PCB*1 J1923 CL1 CL SL1 SL SL5 SL SL2 SL FM1 SR9 J33 SR10 J39 SR12 J36 SR11 J35 J205 J204 J203 J209 J201 J111 J106 J114 J112 J107 J207 Relay PCB J201 J208 J38 SW2 SR5 J2 Humidity sensor J202 *1 : If equipped with fax functions. *2 : If equipped with printer functions. J104 DC controller PCB J108 J113 J110 J900 J903 J902 SL SR1 SL3 Cassette unit (Option) J29 M1 Main motor TH101 TP1 TH102 H1 Fixing unit F-2-2 J103 J105 J102 J30 J31 Scanner unit To analog processor PCB J401/402 J13 J12 J14 Power supply PCB J10/J11 J16 J15 2.1.3 Image Processor PCB 0011-3549 1.function The image processor PCB has the following functions. Control Panel Control Block The control panel control block receives the state of control keys while sending/receiving data in serial communication with the control IC of the control panel PCB. Also, it sends LED and LCD signals to the control panel PCB. Image Processing Control Block - It subjects the digital image data from the analog processor PCB to enlargement/reduction processing, smoothing, and other image processing, thereby converting it to 600x600-dpi image signals (VD0, VD01*, VDO2, VDO2*). - It converts the analog image data from fax communication into 600x600-dpi image signals (VD0, VD01*, VDO2, VDO2*). - It uses a horizontal sync signal (BD0*) as a trigger to send image signals (VD0, VD01*, VDO2, VDO2*) to the laser unit. Smoothing The 600 x 600-dpi image data from the PC is converted into image data equivalent of 1200 x 600 dpi. Sensor Detection It detects the state of each sensor of the reader unit and the ADF. ESS Control It controls the ESS function used to reduce the power consumption while the machine isin standby state. Memory Storage Image data is stored in SDRAM, and is retained for about 1 hr even after the power is removed by the work of the super capacitor mounted on the modem PCB. The system software and various data (e.g., user data, service data) are held by flash ROM. Speaker Control (if equipped with fax functions.) It turns on/off or control the volume of the error sound, key sound, and line monitor sound generated by the speaker. MEMO: The volume of the line monitor or the sound of the key sound or the error sound is adjusted in user mode. 2. Construction The image processor comes in different ROM types/sizes and RAM sizes according to models. The firmware stored in the flash ROM may be either SYSTEM or BOOT. Using the service support tool, the following 3 types of firmware may be upgraded: SYSTEM and BOOT stored in the flash ROM and the firmware stored ion PCL ROM. 2-2

Section	Page
Chapter 1 Introduction	19
1.1 System Construction	23
1.1.1 System Construction	23
1.2 Product Specifications	25
1.2.1 Names of Parts	25
1.2.1.1 External View (Front)	25
1.2.1.2 External View (Rear)	25
1.2.1.3 Cross-Section (Main body)	26
1.2.1.4 Cross Section (ADF)	26
1.2.2 Using the Machine	28
1.2.2.1 Turning On the Power Switch	28
1.2.2.2 When Turning Off the Main Power Switch	29
1.2.2.3 Control Panel	31
1.2.3 User Mode Items	32
1.2.3.1 COMMON SETTINGS	32
1.2.3.2 COPY SETTINGS	32
1.2.3.3 FAX SETTINGS	33
1.2.3.4 ADDRESS BOOK SET.	33
1.2.3.5 PRINTER SETTINGS	33
1.2.3.6 TIMER SETTINGS	34
1.2.3.7 ADJUST./CLEANING	34
1.2.3.8 REPORT SETTINGS	34
1.2.3.9 SYSTEM SETTINGS	35
1.2.4 Maintenance by the User	36
1.2.4.1 User Maintenance Items	36
1.2.4.2 Cleaning	36
1.2.5 Safety	38
1.2.5.1 Safety of the Laser Light	38
1.2.5.2 Safety of Toner	38
1.2.5.3 CDRH Regulations	38
1.2.5.4 Handling the Laser Unit	38
1.2.5.5 Point to Note about Fire	39
1.2.5.6 Cautions as to the replacement and disposal of lithium battery	39
1.2.5.7 Storing and Handling the Cartridge Before Unpacking	40
1.2.5.8 Storing or Handling the Cartridge After Unpacking	40
1.2.6 Product Specifications	41
1.2.6.1 Product Specifications	41
1.2.6.2 ADF Specifications	42
1.2.6.3 Fax specifications	42
1.2.7 Function List	43
1.2.7.1 Printing Speed	43
1.2.7.2 Types of Paper	44
Chapter 2 Basic Operation	47
2.1 Construction	51
2.1.1 Functional Construction	51
2.1.2 Functional Block Diagram	52
2.1.3 Image Processor PCB	52
2.1.4 DC Controller PCB	53
2.1.5 Analog Processor PCB	54
2.1.6 Power Supply PCB	54
2.1.7 Relay PCB	54
2.1.8 Control Panel PCB	54
2.1.9 Network PCB (if equipped with network functions)	54
2.1.10 NCU PCB (if equipped with fax functions)	54
2.1.11 Modular Jack PCB (if equipped with fax functions)	54
2.1.12 Modem PCB (if equipped with fax functions)	54
2.2 Basic Sequence	56
2.2.1 Basic Sequence	56
Chapter 3 Original Exposure System	59
3.1 Basic Constraction	63
3.1.1 Specifications, Control Methods, and Functions	63
3.1.2 Major Components	63
3.2 Basic Sequence	64
3.2.1 Basic Sequence at Power-on	64
3.2.2 Basic Sequence after Depression of Start Key (Book mode, One Sheet of original)	64
3.2.3 Basic Sequence after Depression of Start Key (ADF Mode, One Sheet of Original)	65
3.3 Various Control	65
3.3.1 Enlargement/Reduction	65
3.3.1.1 Magnification Change in Vertical Scan Direction	65
3.3.1.2 Magnification Change in Horizontal Scan Direction	65
3.3.2 Dirt Sensor Control	65
3.3.2.1 Outline	65
3.4 Parts Replacement Procedure	68
3.4.1 Copyboard Glass	68
3.4.1.1 Removing the Copyboard Glass	68
3.4.2 Analog Processor PCB	68
3.4.2.1 Removing the Analog Processor PCB	68
3.4.3 Reader Motor	68
3.4.3.1 Removing the Reader Motor	68
3.4.4 Contact Sensor	68
3.4.4.1 Removing the Contact Sensor	68
3.4.4.2 Procedure after Replacing the CS	69
3.4.5 Reader Home Position Sensor	69
3.4.5.1 Removing the Contact Sensor Home Position Sensor	69
Chapter 4 Original Feeding System	71
4.1 Basic Constraction	75
4.1.1 Outline	75
4.1.2 Drive Mechanism	75
4.2 Basic Operation	76
4.2.1 Outline of Operation Mode	76
4.2.2 Document Size Detection	78
4.2.3 Paper Pickup Operation	78
4.2.4 Reversal Operation	78
4.2.5 Delivery Operation	79
4.3 Detection Jams	81
4.3.1 Outline	81
4.4 ADF	82
4.4.1 ADF	82
4.4.1.1 Removing the ADF	82
4.4.2 External Covers	82
4.4.2.1 Removing the Front Cover	82
4.4.2.2 Removing the Rear Cover	82
4.4.2.3 Detaching the Open/Close cover	83
4.4.2.4 Removing the Pickup Tray	83
4.4.3 Feed Frame Unit	84
4.4.3.1 Removing the Feed Frame Unit	84
4.4.4 Drive Unit	84
4.4.4.1 Removing the Drive Unit	84
4.4.5 Pick-up/Feed Roller Unit	84
4.4.5.1 Removing the Pickup/Feed Roller Unit	84
4.4.6 Pick-up Roller	84
4.4.6.1 Removing the Pickup Roller	84
4.4.7 Feed Roller	85
4.4.7.1 Removing the Feed Roller	85
4.4.8 ADF Motor	85
4.4.8.1 Removing the ADF Motor	85
4.4.9 Document Set Sensor	85
4.4.9.1 Removing the Document Set Sensor	85
4.4.10 Document Edge Sensor	86
4.4.10.1 Removing the document Edge Sensor	86
4.4.11 Registration Sensor	86
4.4.11.1 Removing the Registration Sensor	86
4.4.12 Separation Sensor	86
4.4.12.1 Removing the Separation Rear Sensor	86
4.4.13 Pick-up Solenoid	86
4.4.13.1 Removing the Pickup Solenoid	86
4.4.14 Registration Solenoid	87
4.4.14.1 Removing the Registration Solenoid	87
4.4.15 Release Solenoid	87
4.4.15.1 Removing the Roller Release Solenoid	87
4.4.16 Separation Pad	87
4.4.16.1 Removing the Separation Pad	87
Chapter 5 Laser Exposure	89
5.1 Overview/Configuration	93
5.1.1 Specifications and Control Mechanism	93
5.1.2 Main Components	94
5.2 Parts Replacement Procedure	95
5.2.1 Laser/Scanner Unit	95
5.2.1.1 Removing the Laser Scanner Unit	95
Chapter 6 Image Formation	97
6.1 Overview/Configuration	101
6.1.1 Specifications and Control Mechanism	101
6.2 Image Formation Process	101
6.2.1 Reproduction Processes	101
6.3 Parts Replacement Procedure	103
6.3.1 Transfer Charging Roller	103
6.3.1.1 Removing the Transfer Charging Roller	103
Chapter 7 Pickup and Feed System	105
7.1 Overview/Configuration	109
7.1.1 Outline	109
7.2 Detection Jams	110
7.2.1 Jam Detection Outline	110
7.2.1.1 Outline	110
7.2.1.2 Types of Jams	110
7.3 Cassette Pickup Unit	111
7.3.1 Outline	111
7.3.2 Retry Pickup	111
7.3.3 Detecting the Size of Paper	111
7.4 Duplex Unit	112
7.4.1 Outline	112
7.5 Manual Feed Pickup Unit	113
7.5.1 Outline	113
7.5.2 Retry Pickup	113
7.5.3 Detecting the Size of Paper	113
7.6 Parts Replacement Procedure	114
7.6.1 Cassette Pickup Roller	114
7.6.1.1 Removing the Cassette Pickup Roller	114
7.6.2 Cassette Separation Roller	114
7.6.2.1 Removing the Cassette Separation Roller	114
7.6.3 Cassette Paper Sensor	114
7.6.3.1 Removing the Cassette Paper Sensor	114
7.6.4 Cassette Pickup Solenoid	115
7.6.4.1 Removing the Cassette Pickup Solenoid	115
7.6.5 Paper Feed Roller	115
7.6.5.1 Removing the Cassete Feed Roller	115
7.6.6 Manual Pickup Roller	115
7.6.6.1 Removing the Manual Pickup Roller	115
7.6.7 Manual Pickup Sensor	116
7.6.7.1 Removing the Manual Tray Sensor	116
7.6.8 Manual Pickup Solenoid	116
7.6.8.1 Removing the Manual Pickup Solenoid	116
7.6.9 Manual Separation Roller	116
7.6.9.1 Removing the Manual Separation Pad	116
7.6.10 Registration Roller	116
7.6.10.1 Removing the Registration Roller	116
7.6.11 Registration Sensor	117
7.6.11.1 Removing the Registration Sensor	117
7.6.12 Duplex Pick-up Solenoid	118
7.6.12.1 Removing the Duplex Pickup Solenoid	118
7.6.13 Registration Clutch	118
7.6.13.1 Removing the Registration Clutch	118
7.6.14 Main Motor	118
7.6.14.1 Removing the Main Motor	118
Chapter 8 Fixing System	121
8.1 Overview/Configuration	125
8.1.1 Specifications, Control Mechanisms, and Functions	125
8.1.2 Outline	125
8.2 Various Control Mechanisms	126
8.2.1 Controlling the Temperature of the Fixing Unit	126
8.2.1.1 Outline	126
8.2.2 Controlling the Fixing Film Temperature	126
8.2.2.1 Controlling the Fixing Film Temperature	126
8.2.2.2 Target Temperatures by Mode	127
8.3 Protection Function	127
8.3.1 Outline	127
8.3.2 Failure Detection	127
8.4 Parts Replacement Procedure	129
8.4.1 Fixing Unit	129
8.4.1.1 Removing the Fixing Unit	129
8.4.1.2 Installing the fixing unit	130
8.4.2 Fixing Film Unit	131
8.4.2.1 Removing the Fixing Film Unit	131
8.4.3 Fixing Pressure Roller	132
8.4.3.1 Removing the Pressure Roller	132
8.4.4 Fixing Delivery Paper Sensor	132
8.4.4.1 Removing the Delivery Sensor	132
8.4.5 Delivery Full Sensor	133
8.4.5.1 Removing the Delivery Full Sensor	133
Chapter 9 External and Controls	135
9.1 Control Panel	139
9.1.1 Outline	139
9.2 Fan	139
9.2.1 Outline	139
9.3 Power Supply	140
9.3.1 Power Supply	140
9.3.1.1 Outline	140
9.3.1.2 Rated Output of the Power Supply PCB	140
9.3.2 Protection Function	140
9.3.2.1 Protective Functions	140
9.4 Parts Replacement Procedure	142
9.4.1 External Cover	142
9.4.1.1 Detaching the Reader Rear Cover (Small)	142
9.4.1.2 Detaching the Reader Rear Cover	142
9.4.1.3 Detaching the Rear Cover	142
9.4.1.4 Detaching the Reader Left Cover	142
9.4.1.5 Detaching the Front-left Cover	142
9.4.1.6 Detaching the Rear-left Cover	143
9.4.1.7 Detaching the Reader Right Cover	143
9.4.1.8 Detaching the Right Cover	143
9.4.1.9 Detaching the Front Cover	144
9.4.1.10 Detaching the Delivery Tray	145
9.4.2 Main Drive Unit	145
9.4.2.1 Removing the Main Drive Unit	145
9.4.3 Pick-up Drive Unit	145
9.4.3.1 Removing the Pickup Drive Unit	145
9.4.4 Fixing/Duplex Drive Unit	145
9.4.4.1 Removing the Fixing/Duplex Drive Unit	145
9.4.5 Operation Panel Unit	146
9.4.5.1 Removing the Operation Panel Unit	146
9.4.6 Image Processor PCB	146
9.4.6.1 Removing the Image Processor PCB	146
9.4.6.2 Procedure after Replacing the Image Processor PCB	146
9.4.7 DC Controller PCB	147
9.4.7.1 Removing the DC Controller PCB	147
9.4.8 Powwer Supply PCB	147
9.4.8.1 Removing the Power Supply PCB	147
9.4.9 Relay PCB	147
9.4.9.1 Removing the Relay PCB	147
9.4.10 NCU PCB	147
9.4.10.1 Removing the NCU PCB	147
9.4.11 Modem PCB	147
9.4.11.1 Removing the Modem PCB	147
9.4.12 Modular Jack PCB	148
9.4.12.1 Removing the Modular Jack PCB	148
9.4.13 Network PCB	148
9.4.13.1 Removing the Network PCB	148
9.4.14 Interlock Switch	148
9.4.14.1 Removing the Interlock Switch	148
9.4.15 Fan	148
9.4.15.1 Removing the Heat Discharge Fan	148
9.4.16 Speaker	149
9.4.16.1 Removing the Speaker	149
Chapter 10 Maintenance and Inspection	151
10.1 Periodically Replaced Parts	155
10.1.1 Periodically Replaced Parts	155
10.2 Consumables	155
10.2.1 Durables	155
10.3 Periodical Service	155
10.3.1 Periodeical Service Items	155
Chapter 11 Measurement and Adjustments	157
11.1 Scanning System	161
11.1.1 Procedure after Replacing the CS	161
11.2 Fixing System	161
11.2.1 Adjustment of the height of the fixing unit	161
11.3 Electrical Adjustments	162
11.3.1 Procedure after Replacing the Image Processor PCB	162
11.3.2 Actions to Take before All Clearing (Backing up the User Data)	162
11.4 ADF	163
11.4.1 Outline	163
11.4.1.1 Outline	163
11.4.1.2 Preparing a Test Sheet for Adjustment	163
11.4.2 Adjusting the Mechanical System	163
11.4.2.1 Adjusting the Perpendicularity	163
11.4.3 Adjusting the Electrical System	163
11.4.3.1 Adjusting the Magnification	163
11.4.3.2 Adjusting the Horizontal Registration	163
11.4.3.3 Leading edge registration adjustment	164
Chapter 12 Correcting Faulty Images	165
12.1 Initial Checkup	169
12.1.1 Site Environment	169
12.1.2 Checking the Paper	169
12.1.3 Checking the Placement of Paper	169
12.1.4 Checking the Durables	169
12.1.5 Checking the Units and Functional Systems	169
12.1.6 Others	169
12.2 Outline of Electrical Components	171
12.2.1 Clutch/Solenoid/Motor/Fan	171
12.2.1.1 List of Clutches/Solenoids/Motors/Fans	171
12.2.2 Sensor/Switch	172
12.2.2.1 List of Sensors	172
12.2.3 PCBs	173
12.2.3.1 List of PCBs	173
12.2.4 Others	174
12.2.4.1 List of Lamps, Heaters, and Others	174
Chapter 13 Error Code	177
13.1 Error Code	181
13.1.1 List of Error Codes	181
13.2 Jam Code	182
13.2.1 Jam Codes (Main body)	182
13.2.2 Jam Codes (ADF)	182
13.3 Fax Error Codes	182
13.3.1 Outline	182
13.3.1.1 Error Code Outline	182
13.3.2 User Error Code	183
13.3.2.1 User Error Code	183
13.3.3 Service Error Code	183
13.3.3.1 Service Error Code	183
Chapter 14 Service Mode	185
14.1 Outline	191
14.1.1 Outline of Service Mode	191
14.1.2 Using the Mode	192
14.2 Default Settings	192
14.2.1 Service Mode Menus	192
14.3 Service Soft Switch Settings (SSSW)	198
14.3.1 Outline	198
14.3.1.1 Bit Switch Composition	198
14.3.2 SSSW-SW01:	198
14.3.2.1 List of Functions	198
14.3.2.2 Detailed Discussions of Bit 0	198
14.3.3 SSSW-SW03	198
14.3.3.1 List of Functions	198
14.3.3.2 Detailed Discussions of Bit 7	198
14.3.4 SSSW-SW04	198
14.3.4.1 List of Functions	198
14.3.4.2 Detailed Discussions of Bit 2	199
14.3.4.3 Detailed Discussions of Bit 3	199
14.3.4.4 Detailed Discussions of Bit 4	199
14.3.4.5 Detailed Discussions of Bit 6	199
14.3.4.6 Detailed Discussions of Bit 7	199
14.3.5 SSSW-SW05	199
14.3.5.1 List of Functions	199
14.3.5.2 Detailed Discussions of Bit 1	199
14.3.5.3 Detailed Discussions of Bit 2	199
14.3.6 SSSW-SW12	199
14.3.6.1 List of Functions	199
14.3.7 SSSW-SW13	200
14.3.7.1 List of Functions	200
14.3.7.2 Detailed Discussions of Bit 2	200
14.3.8 SSSW-SW14	200
14.3.8.1 List of Functions	200
14.3.8.2 Detailed Discussions of Bit 2	200
14.3.8.3 Detailed Discussions of Bit 4	201
14.3.9 SSSW-SW28	201
14.3.9.1 List of Functions	201
14.3.9.2 Detailed Discussions of Bit 0	201
14.3.9.3 Detailed Discussions of Bit 1	201
14.3.9.4 Detailed Discussions of Bit 2	201
14.3.9.5 Detailed Discussions of Bit 3	201
14.3.9.6 Detailed Discussions of Bit 4	201
14.3.9.7 Detailed Discussions of Bit 5	201
14.3.10 SSSW-SW30	201
14.3.10.1 List of Functions	201
14.3.10.2 Detailed Discussions of Bit 5	201
14.4 Menu Switch Settings (MENU)	201
14.4.1 Menu Switch Composition	201
14.4.2 <No.005 NL equalizer>	202
14.4.3 <No.006 telephone line monitor>	202
14.4.4 <No.007 ATT transmission level>	202
14.4.5 <No.008 V.34 modulation speed upper limit>	202
14.4.6 <No.009 V.34 data speed upper limit>	202
14.4.7 <No.010 Frequency of the pseudo CI signal>	202
14.5 Numeric Parameter Settings (NUMERIC Param.)	202
14.5.1 <No.010 Frequency of the pseudo CI signal>	202
14.5.2 <002: RTN transmission condition (1)><003: RTN transmission condition (2)><004: RTN transmission condition (3)>	203
14.5.3 <005: NCC pause length (pre-ID code)>	203
14.5.4 <006: NCC pause length (post-ID code)>	203
14.5.5 <010: line connection identification length>	203
14.5.6 <011: T.30 T1 timer (for reception)>	203
14.5.7 <013: T.30 EOL timer>	203
14.5.8 <015: hooking detection time>	203
14.5.9 <016: time length to first response at time of fax/tel switchover>	203
14.5.10 <017: pseudo RBT signal pattern ON time length><018: pseudo RBT signal pattern OFF time length (short)><019: pseudo RBT signal pattern OFF time length (long)>	203
14.5.11 <020: pseudo CI signal pattern ON time length><021: pseudo CI signal pattern OFF time length (short)><022: pseudo CI signal pattern OFF time length (long)>	203
14.5.12 <023: CNG detention level for fax/tel switchover>	203
14.5.13 <024: pseudo RBT transmission level at time of fax/tel switchover>	203
14.5.14 <025: Answering machine connection function signal detection time>	203
14.5.15 <027: V.21 low-speed flag preamble identification length>	203
14.6 Scanner Function Settings (SCANNER)	204
14.6.1 Numeric Parameter Functional configuration	204
14.6.2 <024:CIS scan position during ADF scanning>	204
14.6.3 <026:Distance from the standby position of CIS to the shading start point>	204
14.6.4 <031Vertical scan start position adjustment>	204
14.6.5 <032Horizontal scan start position adjustment>	205
14.6.6 <033Vertical scan magnification correction>	205
14.6.7 <034Horizontal scan magnification correction>	205
14.6.8 <035: - 036:Reader motor speed change>	205
14.6.9 <041: Vertical scan start position adjustment (when scanning on a document fed from ADF)>	205
14.6.10 <042: Horizontal scan start position adjustment (when scanning on a document fed from ADF)>	205
14.6.11 <043: Horizontal scan end position correction ((copy:scanning on ADF)>	205
14.6.12 <044: Horizontal scan end position correction (superfine:scanning on ADF)>	205
14.6.13 <045: Horizontal scan end position correction (fine:scanning on ADF)>	205
14.6.14 <046: Horizontal scan end position correction (standard:scanning on ADF)>	205
14.6.15 <047: Vertical scan magnification correction (when scanning on a document fed from ADF)>	205
14.6.16 <048: Horizontal scan magnification correction (when scanning on a document fed from ADF)>	205
14.6.17 <054: Pickup motor speed correction (when the ADF is used) >	205
14.6.18 <193: ADF special standard-sized paper: LGL misidentification-ready>	205
14.6.19 <194: ADF special standard-sized paper: LTR misidentification-ready>	205
14.6.20 <195: ADF special standard-sized paper: LTR_R misidentification-ready>	205
14.7 Printer Function Settings (PRINTER)	206
14.7.1 Service Soft Switch Settings (SSSW)	206
14.7.1.1 SSSW-SW05	206
14.7.1.1.1 List of Functions	206
14.7.1.1.2 Detailed Discussions of Bit 7	206
14.7.1.2 SSSW-SW14	206
14.7.1.2.1 List of Functions	206
14.7.1.2.2 Detailed Discussions of Bit 0	206
14.7.1.2.3 Detailed Discussions of Bit 2	206
14.7.1.2.4 Detailed Discussions of Bit 4	206
14.7.1.2.5 Detailed Discussions of Bit 5	207
14.7.1.2.6 Detailed Discussions of Bit 7	207
14.7.1.3 SSSW-SW15	207
14.7.1.3.1 List of Function	207
14.7.1.3.2 Detailed Discussions of Bit 3	207
14.7.2 Numeric Parameter Settings (NUMERIC Param.)	207
14.7.2.1 Numeric Parameter Functional configuration	207
14.7.2.2 <031: Top registration adjustment (manual feed tray)>	207
14.7.2.3 <032: Top registration adjustment (cassette)>	207
14.7.2.4 <033: Top registration adjustment (duplex unit)>	207
14.7.2.5 <034: Left-end registration adjustment (manual feed tray)>	207
14.7.2.6 <035: Left-end registration adjustment (cassette 1)>	208
14.7.2.7 <036: Left-end registration adjustment (cassette 2)>	208
14.7.2.8 <039: Left-end registration adjustment (duplex unit)>	208
14.7.2.9 <040: Target fixing temperature adjustment (manual feed tray)>	208
14.7.2.10 <041: Target fixing temperature adjustment (cassette 1)>	208
14.7.2.11 <042: Target fixing temperature adjustment (cassette 2)>	208
14.7.2.12 <051: Target 2-sided temperature adjustment>	208
14.7.2.13 <053: Margin adjustment at the leading edge of the copy>	208
14.7.2.14 <054: Margin adjustment at the trailing edge of the copy>	208
14.7.2.15 <055: Margin adjustment at the right edge of the copy>	208
14.7.2.16 <056: Margin adjustment at the left edge of the copy>	208
14.8 Counter Indication (COUNTER)	209
14.8.1 Counters	209
14.8.2 Clearing Counters	209
14.9 Report Output (REPORT)	210
14.9.1 Report Output	210
14.9.2 System Data List	210
14.9.3 System Dump List	211
14.9.4 Counter List	212
14.9.5 Error Log List	213
14.9.6 Spec List	214
14.9.7 Service Label	215
14.10 Download (DOWNLOAD)	216
14.10.1 Download	216
14.11 Data Initialization Mode (CLEAR)	216
14.11.1 Clear	216
14.12 ROM Management (ROM)	216
14.12.1 ROM display	216
14.13 Test Mode (TEST)	217
14.13.1 Overview	217
14.13.1.1 Outline	217
14.13.1.2 Test Mode Menu List	217
14.13.2 DRAM Test	219
14.13.2.1 D-RAM Test<(1) D-RAM TEST>	219
14.13.3 Scan Test	220
14.13.3.1 Scan Test ((2) SCAN TEST)	220
14.13.4 Print Test	220
14.13.4.1 Print Test ((3) PRINT TEST)	220
14.13.5 Modem Test	221
14.13.5.1 MODEM Test ((4) MODEM TEST)	221
14.13.6 Faculty Test	223
14.13.6.1 FUNCTION TEST <(6) FUNCTION TEST>	223
14.13.7 Cleaning Mode	227
14.13.7.1 Roller cleaning mode ((0) ROLLER CLEAN)	227
Chapter 15 Upgrading	229
15.1 Outline	233
15.1.1 Overview of Upgrade	233
15.1.2 Overview of Service Support Tool	233
15.2 Making Preparations	233
15.2.1 Registering the System Software	233
15.2.2 Connection	235
15.3 Downloading System Software	236
15.3.1 Downloading the System Software	236
15.3.1.1 Downloading Procedure	236
15.3.2 Downloading the Boot Software	236
15.3.2.1 Downloading Procedure	236
15.3.3 Otehr Upgrade Methods	241
15.3.3.1 Downloading the PCL Software	241
Chapter 16 Service Tools	243
16.1 Service Tools	247

Match case Limit results 1 per page

Chapter 2

2-2

2.1.2 Functional Block Diagram

F-2-2

2.1.3 Image Processor PCB

1.function

The image processor PCB has the following functions.

Control Panel Control Block

The control panel control block receives the state of control keys while sending/receiving data in serial communication with the control IC of the control panel PCB.

Also, it sends LED and LCD signals to the control panel PCB.

Image Processing Control Block

- It subjects the digital image data from the analog processor PCB to enlargement/reduction processing, smoothing, and other image processing, thereby converting

it to 600x600-dpi image signals (VD0, VD01*, VDO2, VDO2*).

- It converts the analog image data from fax communication into 600x600-dpi image signals

(VD0, VD01*, VDO2, VDO2*).

- It uses a horizontal sync signal (BD0*) as a trigger to send image signals

(VD0, VD01*, VDO2, VDO2*) to the laser unit.

Smoothing

The 600 x 600-dpi image data from the PC is converted into image data equivalent of 1200 x 600 dpi.

Sensor Detection

It detects the state of each sensor of the reader unit and the ADF.

ESS Control

It controls the ESS function used to reduce the power consumption while the machine isin standby state.

Memory Storage

Image data is stored in SDRAM, and is retained for about 1 hr even after the power is removed by the work of the super capacitor mounted on the modem PCB.

The system software and various data (e.g., user data, service data) are held by flash ROM.

Speaker Control (if equipped with fax functions.)

It turns on/off or control the volume of the error sound, key sound, and line monitor sound generated by the speaker.

MEMO:

The volume of the line monitor or the sound of the key sound or the error sound is adjusted in user mode.

2. Construction

The image processor comes in different ROM types/sizes and RAM sizes according to models.

The firmware stored in the flash ROM may be either SYSTEM or BOOT.

Using the service support tool, the following 3 types of firmware may be upgraded: SYSTEM and BOOT stored in the flash ROM and the firmware stored ion PCL

ROM.

Power supply PCB

DC controller PCB

Relay PCB

*1 : If equipped with fax functions.

*2 : If equipped with printer functions.

J2008

SR2002

J2005

J406

SR2003

J2006

SR2004

J2007

SR2001

J2004

SL2003

J451

J412

SR401

J409

M401

J2003

J411

SL2002

J2001

SL2001

J2002

J410

M2001

Analog processor PCB

Image processor PCB

Contact

snsor

J460

J408

Control

panel

J1701

J318

NCU PCB*1

J404

J309

J403

J308

J314

J104

J205

CL1

J209

J111

J103

J14

J201

J106

J204

SL1

J203

SL5

J207

SL2

J33

SR9

J39

J208

SR10

J36

SR12

J35

J202

SR11

Fixing unit

J201

FM1

TH101

TH102

J113

J110

J29

Main

motor

J105

J30

Scanner

unit

J1800

J1922

Mojular jack

PCB*1

J1923

J13

J1300

J304

Network

PCB*2

J10/J11

To Power

supply PCB

J401/

J402

TP1

J15

To analog

processor

PCB

J401/402

J10/J11

J16

LAN I/F

Transmission

Telephone line

Reception

Modem PCB*1

J1202

J1924

J1201

J1921

J1203

Speaker*1

J313

J1200

Cassette unit

(Option)

J108

J903

SR1

J902

SL3

J900

J102

J31

SW2

J112

J103

J12

J38

SR5

J107

J114

Humidity

sensor