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Sharp
All in One Printer
AR-M550N
Service Manual
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: Feb. 6 2004
1
AR-M550/M620/M
700 DETAILS OF
EACH SECTION
6 - 29
4)
Remove the rear cabinet.
5)
Disconnect the connect
or from the dehumidifying heater relay
PWB, and r
emove the band.
6)
Remove the dry heater unit.
7)
Remove the dry heater.
1
83
85
Table of Contents
Main Page
Default Chapter
1
Contents
1
Service Manual
1
Caution
2
Table of Contents
3
[1] Outline
5
Main Features
5
Network Tandem
5
High Reliability
5
2-Way Security Solution
6
Data Security
6
Data Security Coexisting with Document Filing
6
Document Filing
7
Outline
5
Configuration
8
Main Unit and Option Lineup
8
Main Unit Lineup
8
Option Combinations
9
Block Diagram
9
Basic Specifications
10
Main Unit
10
Engine Specifications
11
Paper Feeding Performance
11
Paper Feeding, Paper Conveyance, and Discharge Section
11
Finishing Performance
12
Gradation
12
Manual Paper Feed
12
Scanner Section (Read)
12
Drive Section
13
Fuser Section
13
Image Processing Section
13
Scanner Section (Write)
13
Operating Specifications
14
Common Operations
14
Low Power Mode, Sleep Mode
14
Warm-Up Time
14
Effective Print Area
15
Image Rotation in Staple Mode
15
Paper Type Summary
15
Copy Mode
16
Document Size
16
Exposure
16
Paper Size
16
Copy Area
17
Job Speed
17
Printable Range
17
Image Send Function
18
Address Specification
18
Copy Functions
18
Image Process
18
Functions
19
Record Size
20
Transmission System
20
Printer Function
20
Built-In Fonts
20
Environment Setting
21
Windows Driver Function
21
Macintosh Driver Functions
22
Paper Exit Method
22
Document Filing Function
23
Data Operation Contents
23
Print Performance
23
Safety and Environmental Protection Standards
24
Safety Standards
24
Environmental Standards
24
Ambient Conditions
24
Space Required
24
Operating Ambient Conditions
24
Ambient Storage Conditions
24
Ambient Conditions for Transporting
25
Standard Temperature and Humidity
25
Service Related Items
25
Consumable Parts
26
Supply System Table
26
F. Middle East/Philippine
27
Maintenance Parts List
27
Australia/New Zealand/Uk
28
C. Middle East/Asia/South and Central America
29
D. China
30
E. Taiwan
31
External View and Internal Structure
32
External View and External Operation Parts
32
Internal Operation Parts
33
Operation, Display Parts
34
Job Status Screen (Common to Print, Copy, Network Scan and Internet Fax)
35
Function Parts
37
Sensor/Detector
37
Switch
41
Clutch/Solenoid
42
Motor
43
Lamp
45
Fan Motor
46
PWB (Main Unit Section)
47
FAX Section
48
Fuse/Thermostat
49
Adjustment Volume
50
Gate
51
Heater
51
Lock Position
52
Roller
53
Filter
55
Details of each Section
56
Operation Panel Section
57
Major Parts and Signal Functions
57
General
57
Maintenance and Parts Replacement
58
LCD Unit
59
Lvds/Inv Pwb
59
Operation Control PWB
59
Touch Panel
59
Paper Feed, Paper Transport, Duplex, and Paper Exit Reverse Sections
60
[Paper Feed Section]
60
(Manual Paper Feed Section)
61
Maintenance List
63
Manual Feed Empty Detector
64
Manual Paper Feed Unit Open/Close Switch
64
Multi Manual Paper Feed Tray Unit
64
Paper Feed Roller
65
Pickup Roller
65
Separation Roller
65
Torque Limiter
65
Manual Feed Paper Pass Detector 1
66
Paper Feed Clutch
66
Paper Pickup Solenoid
66
Manual Feed Paper Width Size Detection PWB
67
(Paper Feed Tray Sections 1 and 2)
68
Lift Wire (Front)
72
Lift Wire (Rear)
72
Paper Remaining Quantity Detector
73
Paper Remaining Quantity Sensor PWB
73
Dry Heater
74
Paper Feed Trays 1 and 2 Sensor
74
(Paper Feed Trays 3 and 4)
75
Each Paper Feed Tray Paper Size Detection Method
77
Operational Descriptions
77
Paper Size Detection
77
Remaining Paper Detection
78
Paper Feed Tray Empty Detector
82
Paper Feed Tray Upper Limit Detector
82
Transport Roller
82
Paper Feed Tray Paper Width Detector
83
Paper Pass Detector
83
Paper Size Detection PWB
83
(Vertical Paper Transport Section 1)
85
Paper Transport Section
85
(Vertical Paper Transport Section 2)
89
(Horizontal Transport Section)
94
Lower Paper Guide Unit
96
Paper Guide Lock Solenoid
96
Relay Pass Unit
96
Paper Guides
97
Transport Roller 2 (Drive)
97
Transport Roller 3 (Drive)
97
Transport Roller 4 (Drive)
97
Paper Exit and Turning Section
99
Duplex Section
104
Paper Transport Operation in Duplex Print
106
ADU Opening/Closing Door
108
Left Door Unit
108
Duplex Paper Pass Detector 2
111
Left Door Transport Paper Guide R Unit
111
Transfer Belt Separation Home Position Sensor
112
Transfer High Voltage Transformer
112
Transfer Separation Motor
112
Left Door Open/Close Detector
113
Paper Exit Gate
113
Switchback Gate
113
Duplex Cover Open/Close Detector
114
Fusing Discharge Brush
114
Reversing Discharge Brush
114
Laser Scan Unit (LSU)
115
Outline of LSU Specifications
116
Polygon Mirror Motor
116
Lsu
117
Image Process Section
118
Composition and Applied Voltage of the Process Section
118
Toner Hopper and Toner Bottle Section
119
Toner Hopper
120
Developer Tank Section
124
OPC Drum Section
129
Process Unit
133
OPC Drum
133
Separation Pawl
134
Cleaning Blade
134
Side Seal F/R
134
Side Seal R Base Sheet
134
Process Adsorption Plate
135
Drum Separation Pawl Solenoid
135
OPC Drum Cleaner Temperature Sensor
135
Discharge Lamp
135
Image Density Sensor
136
OPC Drum Marking Sensor
136
Transfer Section
137
Toner Image Transfer
138
Transfer Belt Cleaning
138
Transfer Belt
141
Transfer Auxiliary Roller
141
Transfer Roller
141
Transfer Roller Collar
141
Main Charger Section
142
Screen Grid
143
MC Cleaner
143
Saw Teeth Plate
143
Scanner Section
144
CCD/Lens Unit
146
CIS Unit
146
Image Signal Flow
146
Carriage (Lamp Unit) Shift (Scan) Speed
147
Timing Chart
147
Platen Timing Chart
147
SPF Duplex Timing Chart
147
Scanner Unit
149
Table Glass
150
Slit Glass (SPF Scan Mode)
150
Mirror
151
Lens
151
Reflector
151
Scanner Dry Heater
151
Rails
152
Drive Belt
152
Drive Wire
152
Pulley
152
CCD Lens Unit
153
Scanner Relay PWB
153
Scanner Motor
153
Scanner FLASH PWB
154
Scanner Control PWB
154
SPF Open/Close Detector
154
Scanner Home Position Sensor Detector
154
Document Size Detection Light Emitting PWB
155
Document Size Detection Light Receiving PWB
155
Fusing Section
156
Details of Operations
158
Fusing Unit Drive
158
Heater Lamp Drive
158
Fusing Operation
158
Pressure Roller
164
Cleaning Scraper
164
Oil Roller (AR-M700N/U)
165
CL Roller Bearing (AR-M700N/U)
165
Paper Guide
165
Cleaning Plate (AR-M700N/U)
165
Sub Heat Roller
166
Sub Heat Roller Bearing
166
Thermistor (Lower)
166
Sub Heater Lamp
166
Thermostat
167
Discharge Brush
167
Cleaning Sheet
167
SPF Section
168
External Outfit Section
169
SPF Unit
169
Cabinet
170
Caution When Attaching
170
Document Mat
170
Paper Feed Tray Section
171
Document Tray Lift Operation
172
Document Tray Unit
172
SPF Document Length Detector 1
172
SPF Document Length Detector 2
172
SPF Document Empty Detector
173
SPF Paper Tray Lift Motor
173
SPF Paper Tray Lower Limit Detector
173
[Paper Feed/Transport Section]
174
Paper Feed Unit
176
SPF Cover Switch
176
No. 1 Resist Roller (Drive)
177
SPF Paper Feed/Paper Transport Motor
177
SPF Resist Roller Brake Clutch
177
SPF Resist Roller Clutch
177
SPF Paper Transport Roller 2 Brake Clutch
178
SPF Paper Transport Roller 2 Clutch
178
SPF Document Paper Pass Detector 2
179
CIS Section
180
Caution When Assembling
181
CIS Control PWB/CIS Unit
181
Paper Exit Section
182
SPF Paper Exit Motor
183
No. 2 Resist Roller (Drive)
184
SPF Paper Transport Roller 3 Brake Clutch
184
SPF Paper Transport Roller 3 Clutch
184
Paper Exit Roller (Drive)
185
SPF Paper Exit Detector
185
[Other]
186
Drive Section
188
Fusing Drive Section
189
Fusing Drive Unit
189
Fusing Motor
189
Drum Drive Section
190
Drum Drive Unit
190
Waste Toner Pipe Lock Detector
191
Process Humidity Sensor
191
OPC Drum Motor
191
Developing Motor
191
Paper Feed/Paper Transport Drive Section
192
Resist Roller Front Drive Motor
193
Resist Roller Clutch
193
Main Motor
193
Manual Paper Feed Drive Section
194
Manual Paper Feed Drive Unit
194
Horizontal Paper Transport Clutch
196
Paper Tray Lift-Up Motor
198
3/4 Paper Feed Drive Unit
198
Paper Feed Clutch (Paper Feed Tray 3)
199
Filters
201
Ozone Filter
201
PWB Section
202
DV Ozone Filter
202
Toner Filter
202
Pcu Flash Pwb
202
Driver PWB
203
Mother PWB
203
Controller Cooling Fan Motor
204
Hdd
204
HDD Cooling Fan Motor
204
Soft NIC PWB
204
Mfp Flash Rom Pwb
205
MFP Controller PWB
205
Power Section
206
DC Main Power PWB
206
AC Power PWB
206
Power Cooling Fan Motor 1
207
Power Cooling Fan Motor 2
207
Dehumidifier Heater Relay PWB
207
Fan Motors
208
DC Sub Power PWB
208
High Voltage PWB (MC/DV/TC)
208
Developing Cooling Fan Motor
208
Paper Cooling Fan Motor 2
209
Fusing Cooling Fan Motor 2
209
Sensors and Switches
213
Parts Replacement
213
Power Switch
213
Main Power Switch
213
Dry Heater Switch
214
Machine Temperature Sensor
215
Setting and Adjustments
216
ADJ 1 Adjusting High Voltage Values
217
Adjust the Main Charger Grid Voltage
217
Main Charger Grid Voltage Adjustment
217
Adjust the Developing Bias Voltage
218
Adjust the Transfer Voltage
219
Transfer Voltage Adjustment (Print Operation Mode)
219
Transfer Voltage Adjustment (Transfer Belt Cleaning Mode)
219
Transfer Voltage Adjustment
220
ADJ 2 Adjusting the Developing Unit
221
Adjust the Developing Doctor Gap
221
ADJ 3 Adjusting Image Distortions
222
Adjust the Developing Roller Main Pole
222
Adjust the Scanner (Reading) Unit Parallelism
224
Adjust Scanned Image Distortions in the Sub-Scanning Direction
225
ADJ 4 Adjusting the SPF Parallelism
227
Adjust SPF Levelness
227
Adjust SPF Skews
228
ADJ 5 Adjusting the Image Focus
229
Adjust the Image Focus in SPF Back-Face Mode (CIS)
230
ADJ 6 Adjusting the Image Magnification
231
ADJ 7 Adjusting the Image Off-Center
236
Adjustment Mode Selection
238
Scan Off-Center Adjustment
238
ADJ 8 Adjusting the Image Position, Image Loss, and Void Area
240
Adjust Copied Image Loss/Void Area in Original Table Mode
240
Front/Rear Frame Direction Image Loss Adjustment
241
Front/Rear Frame Direction Void Area
241
Leading Edge Image Loss/Void Area Adjustment
241
Trailing Edge Void Area Adjustment
241
Adjust the Copied Image Loss/Void Area in SPF Mode
242
Adjust the Original Scan Start Position
242
Leading Edge Image Loss Adjustment
243
Trailing Edge Image Loss Adjustment
243
Adjust the Image Loss for Images Sent in Fax Mode
244
Adjust the Image Loss in Scanner Mode
244
ADJ 9 Adjusting the Copied Image Quality
245
Adjust the Binary Mode Copy Density for All Modes at Once
245
Adjust the Copied Image Gamma in Copy Mode
247
ADJ 10 Adjusting the Print Quality in Fax Mode
248
Adjust the Copied Image Sharpness
248
Fax Mode Image Density Adjustment Items
248
Adjust the Fax Mode Print Density for All Modes at Once
249
ADJ 11 Adjusting the Image Quality in Scan Mode
251
Adjust the Image Gamma in Scanner Mode
253
Scan, and Fax Modes
253
Auto Copy Mode Operation Setting
254
Set up the Auto Mode Operation for Copy, Scan, and Fax
254
Adjust the Scan Mode Image Density for All Modes at Once
251
Binary Mode
251
Scan Mode Image Quality Adjustment Items
251
ADJ 13 Adjusting the Fusing Paper Guide Position
254
ADJ 14 Adjusting the Paper Size Detection
255
Adjust the Paper Width Sensor for Paper Feed Tray 3
255
Adjust the Paper Width Sensor for the Manual Paper Feed Tray
255
Adjust the Paper Width Sensor for the SPF Paper Feed Tray
256
14
257
Adjust the Sensitivity of the Original Size Sensor
257
Adjusting the Original Size Detection (in Original Table Mode)
257
[ADJ 15] Adjusting the Original Size Detection
257
ADJ 16 Adjusting the Touch Panel Coordinates
258
ADJ 17 Adjusting the Supply Voltage
258
Simulation
259
Adjustment Value/Simulation and Storage Data
259
Each Storage Data
259
Simulation Adjustment Value/ Set Value Data
259
Outline and Purpose
264
Code-Type Simulation
264
Operating Procedures and Operations
264
Simulation List
266
Details
278
Elf Diag Operation and Related Work Flow
356
SELF DIAG MESSAGE and TROUBLESHOOTING [Error Code]
356
General
356
Function and Purpose
356
Self Diag Message Kinds
356
Breakdown Sequence
357
Breakdown Mode Process
357
Breakdown Mode List
357
Process Control Trouble Operation Table
357
Trouble Mode Process
358
Writing to the Trouble Memory
358
Power on Trouble Detection Sequence
358
Communication in Trouble
359
FAX Call Request/Call-In Specifications
359
Trouble Kind
359
Details
362
Rom Version-Up Method
394
Version-Up Target Rom's
394
ROM Version-Up Is Required in the Following Cases
394
General
394
Precautions
395
Relationship between each ROM and Version-Up
395
Necessary Items for Flash ROM Version-Up
395
Flash ROM Version-Up Method
395
MFP Control PWB ROM DIP Switch Selection and Flash ROM Slot
395
Operation Panel
395
Version-Up Procedure
396
Countermeasures against "Result: NG
397
Turning off the Power During the Version-Up Procedure
398
Version-Up Procedure Flowchart
398
Maintenance List
400
Drum Peripheral Section
403
Details
403
Transfer Section
404
Developing Section
405
Fusing Section
406
Scanner Section
408
SPF Section
409
Paper Feed Section
410
Transport Section/Paper Exit Reverse Section/ Duplex Section
411
Drive Section
412
Filters
413
Maintenance and Disassembly
414
Necessary Execution Items in Maintenance and Servicing
414
Other
415
Various Counters Specifications
415
Count Specification
415
Send System Counter
416
Blank Paper Count Specification
418
Consumables Counter Specification
418
Total Counter Specifications
418
Reset and Set for Suplly Counters
419
Location and Display of each Counter Data
419
Web Setting Service Mode
421
Operating Procedures
421
Device Cloning
421
Entering the Web Setting Mode
421
Outline
421
Details
421
I-Fax Setup
422
Paper Jam Code
423
Paper Jam Judgment Conditions
423
Clutch/Solenoid Cross Section
426
Sensor Cross Section
426
Motor Cross Section
427
Inserter (AR-CF2) Paper Jam Judgment Conditions
427
Finisher (AR-F15/F16) Paper Jam Judgment Conditions
428
Electric Diagram
429
Overall Block Diagram
429
Power Line Chart
430
Actual Wiring Chart
433
Engine
433
Scanner
441
Signal Name List
445
Lead-Free Solder
458
Note for the Use of Lead-Free Solder Thread
458
Note for Soldering Work
458
Caution for Battery Replacement
459
Caution for Battery Disposal
459
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