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PointSource Ai 2020
Mita PointSource Ai 2020 Manuals
Manuals and User Guides for Mita PointSource Ai 2020. We have
1
Mita PointSource Ai 2020 manual available for free PDF download: Service Manual
Mita PointSource Ai 2020 Service Manual (375 pages)
Brand:
Mita
| Category:
All in One Printer
| Size: 2 MB
Table of Contents
Table of Contents
9
Specifications
12
Handling Precautions
15
Handling and Storing the Imaging Unit
16
Storing Toner
16
-3 Mechanical Construction
17
Mechanical Construction
17
Parts Names and Their Functions
18
Machine Cross Section
20
Drive System
21
Mechanical Construction
23
1 ) Paper Feed Section
23
Paper Feed from the Cassette
25
Paper Feed from the Bypass Table
27
2 ) Main Charging Section
28
3 ) Optical Section
30
4 ) Developing Section
36
5 ) Transfer Section
41
6 ) Cleaning Section
43
7 ) Charge Erasing Section
44
8 ) Fixing and Eject Section
46
9 ) Switchback Section
51
Electrical Parts Layout
54
Detection of Paper Misfeeds
61
Paper Misfeed Detection
62
Paper Misfeed Detection Conditions
63
-3 Operation of the Pcb
66
Operation of the PCB
66
Power Source PCB
67
Main PCB
69
Engine PCB
70
Motor PCB
72
Operation Unit PCB
73
Cassette Motor PCB
74
-1 Installation
75
Installation
75
Unpacking and Installation
76
1 ) Installation Environment
76
2 ) Installation Procedure
77
Setting Initial Copy Modes
88
Installing the Total Counter (Option)
89
Installing the Image Storage Memory Board (Option)
91
Installing the Ejected Paper Overflow Sensor (Option)
92
Installing the ISU Heater (Service Part)
93
Installing the Feeder Heater (Service Part)
94
Maintenance Mode
100
-3 Assembly and Disassembly
194
Assembly and Disassembly
194
Precautions for Assembly and Disassembly
196
1 ) Precautions
196
2 ) Running a Maintenance Function
197
Paper Feed Section
198
1 ) Detaching and Refitting Paper Feed Pulley 1
198
2 ) Detaching and Refitting Paper Feed Pulleys 2
200
3 ) Detaching and Refitting the Bypass Paper Feed Pulley
202
4 ) Detaching and Refitting the Right Registration Roller
205
5 ) Detaching and Refitting the Registration Clutch and Left Registration Roller
206
6 ) Adjusting the Centerline of Printing
208
7 ) Adjusting the Start Position of Image Printing
209
8 ) Adjusting the End Position of Image Printing
210
9 ) Adjusting the Amount of Slack in the Paper Fed from Cassette 2
211
Replacing the Left Registration Felt and Lower Left Registration Felt
212
Replacing the Right Registration Felt and Paper Powder Cleaning Seals a and B
213
Optical Section
214
1 ) Detaching and Refitting the Exposure Lamp
214
2 ) Detaching and Refitting the Scanner Wires
215
Detaching the Scanner Wires
215
Refitting the Scanner Wires
216
3 ) Detaching and Refitting the Laser Scanner Unit
221
( 4 ) Adjusting Lateral Image Squareness (Reference)
222
Adjusting the Position of the Laser Scanner Unit
222
Adjusting the Instrallation of the ISU
223
5 ) Adjusting the Scanning Centerline of the Original on the Contact Glass
227
6 ) Adjusting the Scanning Start Position of the Original on the Contact Glass
228
7 ) Adjusting the Scanning End Position of the Original on the Contact Glass
229
8 ) Adjusting the Magnification
230
9 ) Adjusting the Right and Left Margins
231
Imaging Unit Section
232
( 1 ) Detaching and Refitting the Drum and the Cleaning Blade (Reference)
232
2 ) Cleaning the Drum
235
Transfer Section
236
1 ) Detaching and Refitting the Transfer Roller
236
Fixing and Eject Section
237
1 ) Detaching the Fixing Unit
237
2 ) Replacing the Fixing Heater
239
3 ) Replacing the Fixing Unit Thermistor
241
Others
246
-4 Pcb Initial Setting
247
Main PCB
248
1 ) Replacing the Main PCB
248
Replacing the Engine PCB
253
Adjustment-Free Variable Resisters (VR)
254
Printer Board (Option)
255
-6 Troubleshooting
265
( 1 ) no Image Appears (Entirely White)
268
( 2 ) no Image Appears (Entirely Black)
268
3 ) Image Is too Light
268
4 ) Background Is Visible
268
5 ) a White Line Appears Longitudinally
268
6 ) a Black Line Appears Longitudinally
268
7 ) a Black Line Appears Laterally
268
8 ) One Side of the Copy Image Is Darker than the Other
268
9 ) Black Dots Appear on the Image
268
Image Formation Problems
268
Fixing Is Poor
269
Image Center Does Not Align with the Original Center
269
Image Is Not Square
269
Main PCB
286
Image Is out of Focus
269
Image Is Partly Missing
269
Offset Occurs
269
Paper Creases
269
-7 Appendixes
320
Timing Chart No. 1
322
Timing Chart No. 2
323
Timing Chart No. 3
324
Timing Chart No. 4
325
Timing Chart No. 5
326
Timing Chart No. 6
327
Power Source PCB (120 V Area)
329
Power Source PCB (220 - 240 V Area)
330
Main PCB
334
Main PCB
336
Main PCB
338
Main PCB
350
Main PCB
352
Engine PCB
361
Engine PCB
362
Engine PCB
364
Engine PCB
365
Engine PCB
367
Engine PCB
369
Connection Diagram
373
Connection Diagram 2 / 2
373
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