Sharp AL-2051 Service Manual Page 70
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- Table of contents
- BOOKMARKS
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AL-2051 ADJUSTMENTS 9 - 2
c. Adjustment procedure
1) Set the scale on the document table as shown below. (Use a
long scale for precise adjustment.)
2) Set the copy magnification ratio to 100%.
3) Make a copy on A4 or 81/2" x 11" paper.
4) Measure the length of the copied scale image.
5) Calculate the sub scanning direction copy magnification ratio
using the formula below.
6) Check that the actual copy magnification ratio is within the
specified range. (100 ± 1.0%).
If it is not within the specified range, perform the following pro-
cedures.
7) Execute SIM 48-1 to select the sub scanning direction copy
magnification ratio adjustment mode.
To select the adjustment mode, use the [ ] [ ] key. SCAN
mode lamp ON.
8) Enter the new set value of sub scanning direction copy magnifi-
cation ratio with the [Numeric] keys and press the [START] key.
Repeat procedures 1) - 8) until the sub scanning direction actual
copy magnification ratio in 100% copying is within the specified
range.
When the set value is changed by 1, the magnification ration is
changed by 0.1%.
B. Image position adjustment
There are following eleven kinds of image position adjustments,
which are made by laser control except for the image scan start
position adjustment. For the adjustments, SIM 50-01 and 50-10 are
used.
To select the adjustment mode with SIM 50-01, use the [ ] [ ]
key.
The relationship between the adjustment modes and the lighting
lamps are as shown in the table below.
To select the adjustment mode with SIM 50-10, use the [ ] [ ]
key.
The relationship between the adjustment modes and the lighting
lamps are as shown in the table below.
=
Copy image dimensions
X 100 (%)
Original dimension
100
110 120 130
150
140
mm
1/2mm
JAPAN
HARDDENCD
STAINLESS
Shizuoka
100
110 120
130
150
140
mm
1/2mm
JAPAN
HARDDENCD
STAINLESS
Shiz uoka
110
10
20
10 20
Original (Scale)
Paper feed
direction
Reference
Comparison point
Copy
No. Mode SIM Remarks
1 Print start position
(Main cassette paper feed)
50-01
2 Print start position (Manual paper feed) 50-01
3 Image lead edge void amount 50-01
4 Image scan start position 50-01
5 Image rear edge void amount
(Cassette paper feed)
50-01
6 Image rear edge void amount
(Manual paper feed)
50-01
7 Print center offset
(Main cassette paper feed)
50-10
8 Print center offset (Manual paper feed) 50-10
Adjustment mode Display item Lamp ON
Print start position
(Main cassette paper feed)
TRAY1 COPY mode lamp
Main cassette lamp
Print start position
(Manual paper feed)
MFT COPY mode lamp
Manual paper feed lamp
Image lead edge void
amount
DEN-A PRINT mode lamp
Main cassette lamp
Image scan start position RRC-A SCAN mode lamp
Main cassette lamp
Image rear edge void
amount (Cassette paper
feed)
DEN-B COPY mode lamp
PRINT mode lamp
SCAN mode lamp
Main cassette lamp
Image rear edge void
amount (Manual paper
feed)
RRC-B COPY mode lamp
PRINT mode lamp
Manual paper feed lamp
Adjustment mode Display item Lamp ON
Print center offset
(Main cassette paper feed)
TRAY1 COPY mode lamp
Main cassette lamp
Print center offset
(Manual paper feed)
MFT COPY mode lamp
Manual paper feed lamp
2nd print center offset
(Main cassette paper feed)
SIDE2 PRINT mode lamp
Main cassette lamp
- SERVICE MANUAL 1
- CAUTION 2
- CONTENTS 4
- [1] GENERAL 6
- [2] SPECIFICATIONS 7
- 3. Copy performance 8
- 4. Network board 9
- 5. Printer 9
- 6. Scan function 9
- [3] CONSUMABLE PARTS 10
- 2. Environmental 11
- 1. Appearance 12
- 2. Internal 12
- 3. Operation panel 13
- 4. Motors and solenoids 14
- 5. Sensors and switches 15
- 6. PWB unit 16
- 7. Cross sectional view 17
- 1. Copier installation 18
- 2. Cautions on handling 18
- 4. Unpacking 19
- 7. Loading paper 19
- 8. Power to copier 20
- 9. Software 20
- B. Installing the software 21
- (2) Connecting a USB cable 22
- D. Setting up button manager 26
- 10. Interface 27
- 11. Moving 27
- C. Attachment method 28
- 20mm - 25mm 29
- [6] COPY PROCESS 32
- 2. Outline of print process 33
- 3. Actual print process 33
- About DC 5.2kV 34
- Semiconductor laser 35
- [7] OPERATIONAL DESCRIPTIONS 36
- 2. Scanner section 37
- 3. Laser unit 38
- 4. Fuser section 38
- A. General description 39
- Gear 20T 42
- Process detection switch 42
- Gear 38T 42
- 7. RSPF section 43
- D. RSPF open/close detection 44
- (book document detection) 44
- A. Initial state 44
- B. Front copy 44
- C. Back copy 44
- 9. Shifter 45
- [8] DISASSEMBLY AND ASSEMBLY 46
- 2. Operation panel section 47
- 3. Optical section 48
- 4. Fusing section 50
- PPD2 sensor 51
- Heater lamp 51
- Heat roller 52
- C. Assembly procedure 53
- B. Disassembly procedure 53
- PS semi-circuler 57
- 7. Rear frame section 61
- 8. Power section 62
- 9. Duplex motor section 62
- 10. Reverse roller section 63
- 11. RSPF section 63
- C. Document tray unit 64
- F. Drive unit 64
- G. Shutter solenoid 65
- I. Paper empty sensor 66
- J. PS roller 67
- K. Upper transport roller 67
- L. Paper sensor 68
- M. Lower transport roller 68
- N. Paper exit sensor 68
- [9] ADJUSTMENTS 69
- B. Image position adjustment 70
- B4 or 8 1/2″ × 14″ paper 71
- A4 size rear edge 71
- Paper rear edge 71
- Scale image 71
- 2. Copy density adjustment 72
- 3. High voltage adjustment 73
- 4. Duplex adjustment 74
- Document guide 75
- The trailing edge has a scale 75
- Table glass 75
- 2. Key rule 77
- 3. List of simulations 77
- (Example) 101
- (Main cassette paper feed) 102
- Chart back surface 106
- 5. Trouble codes 108
- [11] USER PROGRAM 112
- [12] ELECTRICAL SECTION 115
- 2. Actual wiring diagram 116
- RSPF UNIT 117
- 3. Signal name list 118
- [13] CIRCUIT DIAGRAM 120
- 2/14Memory section 121
- 3/14Buffer section 122
- 4/14Driver section 1 123
- 5/14Driver section 2 124
- 6/14Connector section 1 125
- 7/14Connector section 2 126
- 8/14Connector section 3 127
- 9/14Pull Up/Down section 128
- 11/14KronosII SDRAM section 130
- 13/14KronosII USB/LSU section 132
- 14/14Power Source section 133
- 1/3LED/LCD section 134
- 2/3KEY / Buzzer section 135
- 3/3Connector section 136
- LEAD-FREE SOLDER 137
- CAUTION FOR BATTERY DISPOSAL 138
- Trademark acknowledgements 139
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