A151/A152
SERVICE TRAINING
MANUAL
6.MAJOR DIFFERENCE BETWEEN THE FT3013/FT3213 AND FT3113/FT3313 COPIERS
The FT3013/FT3213 (A151 and A152) are developed based on the FT3113/FT3313 (A076 and A077).
The following table lists the major differences between the FT3013/FT3213 series and the FT3113/FT3313 series.
No. |
|
ITEM |
FT3013/FT3213 |
FT3113/FT3313 |
Overall |
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|
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1 |
|
Energy Saver Function |
Newly added. |
Not available. |
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2 |
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Copy Paper Weight |
The copy paper weight specification has been |
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narrowed due to the changes in the paper feed |
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mechanism. |
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3 |
|
Operation Panel |
10 independent number keys for faster and |
Quantity keys. |
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easier operation. The access to the SP modes |
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have been changed due to this reason. |
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Around the Drum |
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4 |
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Pre-Transfer Lamp |
The pre-transfer lamp has been removed. the |
The PTL is installed. |
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same PTL for the FT3113/3313 series is |
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available for the FT3013/3213 series as |
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optional service equipment. |
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Due to this, the transfer corona adjustment |
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standard has been changed. |
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5 |
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Cleaning Mechanism |
Counter blade system. |
Trailing system with brush. |
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Setting powder should be applied on the blade |
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and drum after servicing. |
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6 |
|
Drum Drive Mechanism |
The main motor directly drives the drum. The |
An independent drum motor |
|
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drum motor and the drum motor board have |
drives the drum. |
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been removed. |
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7 |
|
Erase Mechanism |
For the FT3013 copier, side erase is |
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performed by the platen cover. (The FT3213 |
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copier is the same as the FT3313) |
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8 |
|
Development Drive Mechanism |
The development clutch solenoid has been |
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removed. |
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Paper Feed |
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9 |
|
Paper Feed Mechanism |
Semicircular feed rollers and corner separator |
FTR (Feed + Torque Roller) |
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|
(Paper Tray) |
system. |
feed system with corner |
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|
|
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separators. |
10 |
|
Paper Feed Mechanism |
Auto feed mechanism is newly applied. |
No auto feed. |
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|
(By-Pass feed table) |
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11 |
|
Misfeed Indication |
PE, J1 and J2. |
J1, J2, and J3. |
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Indication change only. |
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The basic detection mechanism has not |
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changed. |
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Fusing |
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12 |
|
Fusing Lamp Control |
Fusing lamp control mechanism has changed |
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|
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to achieve stable temperature control of the |
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hot roller. |
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1
No. |
ITEM |
FT3013/FT3213 |
FT3113/FT3313 |
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|
|
Copy Process Control |
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|
|
13 |
Grid Voltage for Image Density |
The grid voltage does not change whether the |
The grid voltage is different |
|
Control |
manual image density is selected or auto |
depending on whether the |
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image density is selected (with the exception |
image density is manually |
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|
of SP34 setting). |
selected or the auto image |
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density mode is used. |
14 |
Exposure Lamp Voltage for |
The Vl correction method has changed to |
The Vl correction is applied at |
|
Image Density Control |
prevent over applying of the exposure lamp |
set intervals. |
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|
voltage. A white reference plate has been |
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|
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added under the left scale supporting bracket. |
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15 |
Drum Temperature Correction |
The drum temperature correcton has been |
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|
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eliminated. |
|
Optics |
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|
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16 |
Optics Thermistor and Cooling |
An optics thermistor has been added to |
The optics thermistor is not |
|
Fan |
monitor the optics temperature for the |
equipped. The optics cooling |
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|
operation of the optics cooling fan motor for |
fan operates during the copy |
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|
the FT3213 copiers. Since the cooling fan is |
cycle. |
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not installed on the FT3013 copier, the optics |
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thermistor monitors the optics temperature to |
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prevent overheating in the optics cavity. |
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However the copier may stop for some extra |
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waiting time when the thermistor detects a |
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certain high temperature condition. |
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Drum Cleaning |
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17 |
Used toner Overflow Detection |
Since the elimination of the PTL and the |
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change of the QL, the used toner overflow |
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detection cycle has been changed. |
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1. When the copy quantity |
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reaches 80K copies. |
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2. When the number of toner |
1. Same as the FT3013/3213. |
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end conditon reaches 9. |
2. When the number of toner |
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end condition reaches 11. |
Installation |
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18 |
Developer |
Developer is not equipped to the copier at the |
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factory. A new pack is necessary when |
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installing the copier. |
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19 |
220-230V to 240V Conversion |
The conversion for the exposure lamp is |
The coversion for the |
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|
required. The conversion for the dc power |
exposure lamp and dc power |
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|
supply board is not required. |
supply board is required. |
20 |
Key Counter |
In order to install the optional key counter, |
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|
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some service parts need to be ordered. |
|
Document Feeder (A365) |
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|
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21 |
Installation |
From the May production, to install the DF to |
The ADF interface unit and the |
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|
the FT3213, the ADF interface unit and the two |
two stud screws are installed |
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|
stud screws are an accessory of the DF. |
on the FT3313. |
Service Program Mode |
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22 |
Sales Mode |
The salesman mode has been eliminated. |
Some SP modes can be |
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accessed by the sales |
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representatives. |
Service Call |
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|
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23 |
E40 |
"Optics Thermistor Error" |
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|
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has been eliminated. |
|
2
No. |
ITEM |
FT3013/FT3213 |
FT3113/FT3313 |
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|
|
|
Test Points |
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|
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24 |
Test Points |
Some test points on the main control board |
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|
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have been eliminated. |
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Replacement and Adjustment |
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|
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25 |
Transfer Corona Current |
The adjustment standard is |
The adjustment standard is |
|
Adjustment |
DC -34.0 ± 0.5 μA |
DC -20.0 ± 0.5 μA |
26 |
Fusing Unit Removal |
the fusing unit removal procedure has been |
|
|
|
modified to achieve faster servicing. |
|
3
7. MAJOR UNIQUE PARTS FOR THE FT3013/FT3213 (Compared with the FT3113/FT3313)
PM Parts
Parts Number |
Description |
Remarks |
AD002044 |
Cleaning Blade |
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Cleaning Brush |
eliminated |
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Paper Feed Roller |
eliminated |
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Torque Roller |
eliminated |
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Electrical Parts |
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|
|
|
Parts Number |
Description |
Remarks |
A1515100 |
Main Board for FT3013 |
|
A1525100 |
Main Board for FT3212 |
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AZ220019 |
DC Power Supply Board - 115V |
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A1525660 |
AC Drive Board - 115V |
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AZ320075 |
Power Pack - CC/G/B |
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AZ320076 |
Power Pack - T/D |
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A1515276 |
Erase Lamp for FT3013 |
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AX640056 |
Optics Cooling Fan Motor for FT3213 |
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AX640057 |
Exhaust Blower Motor |
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A1525610 |
Quenching Lamp - 115V |
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AW100028 |
Fusing Thermistor |
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A1525120 |
Optics Control Board (Auto ID Sensor) |
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A1525241 |
ID Sensor Board |
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AW100033 |
Optics Thermistor |
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A1535211 |
4th/5th Mirror Drive Motor |
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A1535213 |
Lens Drive Motor |
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AW020075 |
Photointerrupter |
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AX020078 |
Main Motor - 115V |
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AX520023 |
Exposure Lamp - 97V/220W |
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AG010049 |
Operation Panel Assembly for FT3013 |
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AG010051 |
Operation Panel Assembly for FT3213 |
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Consumables
The toner used by the FT3013/3213 is different from the FT3113/FT3313.
4
SECTION 1
OVERALL MACHINE
INFORMATION
Configuration: |
Desk top |
|
Copy Process: |
Dry electrostatic transfer system |
|
Original Type: |
Sheet/Book |
|
Original Alignment: |
Left center |
|
Original Size: |
Maximum: |
A3/11" x 17" (lengthwise) -- FT3213 |
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|
copier |
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|
B4/10" x 14" (lengthwise) -- FT3013 |
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copier |
Copy Paper Size: |
Maximum: |
B4/10" x 14" (lengthwise) |
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Minimum: |
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Paper Tray: A5/51/2" x 81/2" (lengthwise) |
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Bypass Feed: A6/51/2" x 81/2" (lengthwise) |
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Copy Paper Weight: |
Paper tray feed -- 64 to 90 g/m2 (17 to 24 lb) |
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Bypass feed -- 52 to 105 g/m2 (14 to 28 lb) |
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Reproduction Ratios: |
2 Enlargement and 3 Reduction (FT3213 copier |
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only) |
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A4 Version |
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Letter Version |
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Enlargement |
141% |
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129% |
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122% |
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121% |
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Full size |
100% |
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100% |
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93% |
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93% |
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Reduction |
82% |
|
74% |
Zoom: |
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|
71% |
|
65% |
|
From 61% to |
141% in 1% steps |
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(FT3213 copier only) |
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Copying Speed: |
13 copies/minute (A4/81/2" x 11" lengthwise) |
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10 copies/minute (B4/81/2" x 14") |
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Warm-Up Time: |
30 seconds (at 20°C/68°F) |
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First Copy Time: |
9 seconds (A4/81/2" x 11" lengthwise) |
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Copy Number Input: |
Number keys, 1 to 99 |
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Manual Image Density: |
7 steps |
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Toner Type: |
Type 320 |
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Developer Type: |
Type 310 |
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FT3013/3213 |
1-1 |
STM |
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Automatic Reset: |
|
1 minute standard setting; can also be set to 3 |
|
minutes or no automatic reset. |
Energy Saver Function: |
Automatic |
Paper Capacity: |
Paper tray -- 250 sheets |
|
Bypass feed table -- 1 sheet |
Toner Replenishment: |
Cartridge exchange (320 g/cartridge) |
Copy Tray Capacity: |
100 sheets (B4/10" x 14" or smaller) |
Power Source: |
110V/ 60Hz/ 15A (for Taiwan) |
|
115V/ 60Hz/ 15A (for North America) |
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220V -- 240V/ 50Hz/ 8A (for Europe) |
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220V/ 60Hz/ 8A (for Middle East) |
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220V/ 50Hz/ 8A (for Asia) |
|
(Refer to the serial number plate (rating plate) to |
determine the power source required by the machine.)
Power Consumption:
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Copier Only |
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With DF* |
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Maximum |
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1.4 kVA |
|
1.5 kVA |
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Warm-up |
|
620 VA (average) |
|
640 VA (average) |
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Copy cycle |
|
810 VA (average) |
|
860 VA (average) |
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Ready |
|
160 VA (average) |
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180 VA (average) |
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Noise Emission: |
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Copier Only |
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With DF* |
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Maximum |
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58 db |
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60 db |
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Copy cycle |
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Less than 55 db |
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Less than 55 db |
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Ready |
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Less than 39 db |
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Less than 39 db |
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Dimensions: |
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Width |
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Depth |
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Height |
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Copier with platen cover and |
713 mm (28.1") |
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592 mm (23.3") |
|
400 mm (15.7") |
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copy tray |
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Copier with document feeder |
713 mm (28.1") |
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592 mm (23.3") |
|
463 mm (18.2") |
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and copy tray |
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*NOTE: The document feeder can be installed only on the FT3213 copier.
STM |
1-2 |
FT3013/3213 |
Weight: |
Copier only: |
43 kg (94.8 lb) |
|
With DF: |
50 kg (110.2 lb) |
Optional Equipment: |
Document feeder (FT3213 copier only) |
|
(Sales items) |
Key counter |
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Optional Equipment: |
Drum anti-condensation heater |
|
(Service items) |
Optics anti-condensation heater |
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|
Pre-transfer lamp |
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|
Optics cooling fan (for FT3013 copier only) |
|
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∙ Specifications are subject to change without notice. |
|
Model Designations: |
A151 = FT3013 |
|
|
A152 = FT3213 |
|
FT3013/3213 |
1-3 |
STM |
16 |
17 |
18 |
19 |
20 |
21 |
22 23 24 |
25 |
26 |
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27 |
15
28
14
13
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29 |
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12 |
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30 |
11 |
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31 |
10 |
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32 |
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33 |
9 |
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8 |
7 |
6 |
5 |
4 |
3 |
2 |
1 |
1. |
Semicircular Feed Rollers |
12. |
Hot Roller Strippers |
|
2. |
Paper Tray |
13. |
Exhaust Blower Motor |
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3. |
Registration Rollers |
14. |
3rd Mirror |
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4. |
Transfer and Separation |
15. |
2nd Mirror |
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Corona Unit |
16. |
1st Mirror |
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5. |
Pick-off Pawl |
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17. |
Ozone Filter |
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6. |
Cleaning Unit |
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18. |
Used Toner Tank |
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7. |
Pressure Roller |
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19. |
Cleaning Blade |
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8. |
Fusing Unit |
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20. Quenching Lamp |
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9. |
Hot Roller |
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21. |
Charge Corona Unit |
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10. |
Exit Rollers |
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22. |
Lens |
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11. |
Copy Tray |
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23. |
6th Mirror |
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24.Erase Lamp
25.Drum
26.4th Mirror
27.5th Mirror
28.Optics Cooling Fan Motor (FT3213 Copier only)
29.Toner Supply Unit
30.Development Unit
31.2nd Relay Rollers
32.By-pass Feed Table
33.1st Relay Rollers
STM |
1-4 |
FT3013/3213 |
|
23 |
24 |
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22 |
25 |
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21 |
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26 |
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20 |
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27 |
28 |
19 |
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18 |
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29 |
30
31
17
16
15
32
14
13 |
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33 |
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34 |
12 |
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11 |
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10 |
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35 |
9 |
8 |
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7 |
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36 |
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6 |
5 |
4 3 |
38 |
37 |
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1 |
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2 |
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1.Paper Tray Switch
2.Relay Sensor
3.Registration Clutch
4.Optics Cooling Fan Motor (FT3213 only)
5.Registration Sensor
6.Image Density Sensor
7.Power Pack-TC/SC
8.Operation Panel Board
9.Erase Lamp
10.Total Counter
11.Quenching Lamp
12.Fusing Lamp
13.Front Cover Safety Switch
14.Main Switch
15.Fusing Thermoswitch
16.Exit Sensor
17.Exhaust Blower Motor
18. |
Optics Thermofuse |
31. |
4th/5th Mirror Motor |
|
19. |
Auto Image Density Sensor |
(FT3213 copier only) |
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|
||||
20. |
Fusing Thermistor |
32. |
Main Motor Capacitor |
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33. |
Main Board |
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21. Exposure Lamp |
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34. |
Main Motor |
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22. |
Lens Motor |
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(FT3213 copier only) |
35. |
Toner Supply Clutch |
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23. Scanner Home Position |
36. |
DC Power Supply Board |
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Sensor |
37. |
Relay Roller Clutch |
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24. |
Optics Thermistor |
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38. |
Paper Feed Clutch |
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25.Lens Home Position Sensor
(FT3213 copier only)
26.Power Pack-CC/Grid/Bias
27.AC Drive Board
28.Fusing Triac (115 V only)
29.Scanner Motor
30.4th/5th Mirror Home Position Sensor (FT3213 copier only)
FT3013/3213 |
1-5 |
STM |
Rev. 1/95
Motors
SYMBOL |
NAME |
FUNCTION |
INDEX |
|
NO. |
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||
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Drives all the main unit components except for the |
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M1 |
Main Motor |
optics unit and fans. (115/220--240 Vac [ac |
34 |
|
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synchronous]) |
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M2 |
Scanner Motor |
Drives the scanners (1st and 2nd). (dc stepper) |
29 |
|
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Positions the lens according to the selected |
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M3 |
Lens Motor |
magnification. (dc stepper) |
22 |
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¼ FT3213 copier only |
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4th/5th Mirror |
Positions the 4th/5th mirrors according to the |
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M4 |
selected magnification. (dc stepper) |
31 |
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Motor |
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¼ FT3213 copier only |
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Optics Cooling |
Prevents a build up of hot air in the optics cavity. |
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M5 |
(24 Vdc) |
4 |
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Fan Motor |
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¼ FT3213 copier only |
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Exhaust Blower |
Removes heat from around the fusing unit and |
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M6 |
moves the ozone built up around the charge |
17 |
||
Motor |
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section to the ozone filter. (24 Vdc) |
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Magnetic Clutch
SYMBOL |
NAME |
FUNCTION |
INDEX |
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NO. |
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MC1 |
Registration |
Drives the registration rollers. |
3 |
|
Clutch |
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Magnetic Spring Clutches
SYMBOL |
NAME |
FUNCTION |
INDEX |
|
NO. |
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MSC1 |
Toner Supply |
Drives the toner supply roller. |
35 |
|
Clutch |
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MSC2 |
Relay Roller |
Drives the 1st and 2nd relay rollers. |
37 |
|
Clutch |
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MSC3 |
Paper Feed |
Starts paper feed. |
38 |
|
Clutch |
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STM |
1-6 |
FT3013/3213 |
Switches
SYMBOL |
NAME |
FUNCTION |
INDEX |
|
NO. |
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SW1 |
Main Switch |
Supplies power to the copier. |
14 |
|
SW2 |
Front Cover |
Cuts the ac power line, when the front cover is |
13 |
|
Safety Switch |
open. |
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SW3 |
Paper Tray |
Detects when the paper tray is set. |
1 |
|
Switch |
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Sensors
SYMBOL |
NAME |
FUNCTION |
INDEX |
|
NO. |
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S1 |
Scanner Home |
Informs the CPU when the 1st scanner is at the |
23 |
|
Position Sensor |
home position. |
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Lens Home |
Informs the CPU when the lens is at the home |
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S2 |
position (full size position). |
25 |
||
Position Sensor |
||||
|
¼ FT3213 copier only |
|
||
|
4th/5th Mirror |
Informs the CPU when 4th/5th mirrors assembly is |
|
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S3 |
Home Position |
at the home position (full size position). |
30 |
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Sensor |
¼ FT3213 copier only |
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S4 |
Registration |
1) Detects misfeeds. |
5 |
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Sensor |
2) Controls the relay roller clutch stop timing. |
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S5 |
Exit Sensor |
Detects misfeeds. |
16 |
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1) Detects when copy paper is set on the |
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S6 |
Relay Sensor |
by-pass feed table. |
2 |
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2) Detects misfeeds. |
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S7 |
Image Density |
Detects the density of the image on the drum to |
6 |
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(ID) Sensor |
control the toner density. |
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Auto Image |
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S8 |
Density Sensor |
Senses the background density of the original. |
19 |
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(ADS) |
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Printed Circuit Boards
SYMBOL |
NAME |
FUNCTION |
INDEX |
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NO. |
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PCB1 |
Main Board |
Controls all copier functions both directly and |
33 |
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through the other PCBs. |
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PCB2 |
AC Drive Board |
Drives the main motor, exposure lamp, fusing |
27 |
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lamp, and quenching lamp. |
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PCB3 |
DC Power |
Converts the wall outlet ac power input to +5 volts, |
36 |
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Supply Board |
+24 volts, and a zero cross signal. |
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Operation Panel |
Informs the CPU of the selected modes and |
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PCB4 |
displays the copier status and condition on the |
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Board |
panel. |
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FT3013/3213 |
1-7 |
STM |
Lamps
SYMBOL |
NAME |
FUNCTION |
INDEX |
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NO. |
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L1 |
Exposure Lamp |
Applies high intensity light to the original for |
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exposure. |
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L2 |
Fusing Lamp |
Provides heat to the hot roller. |
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L3 |
Quenching Lamp |
Neutralizes any charge remaining on the drum |
11 |
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surface after cleaning. |
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Discharge the drum outside of the image area. |
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L4 |
Erase Lamp |
Provides leading/trailing edge erase and side |
9 |
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erase. |
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Power Packs
SYMBOL |
NAME |
FUNCTION |
INDEX |
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NO. |
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P1 |
Power Pack |
Provides high voltage for the charge corona, grid, |
26 |
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--CC/Grid/Bias |
and development roller. |
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P2 |
Power Pack |
Provides high voltage for the transfer and |
7 |
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--TC/SC |
separation corona. |
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Counter
SYMBOL |
NAME |
FUNCTION |
INDEX |
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NO. |
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CO1 |
Total Counter |
Keeps track of the total number of copies made. |
10 |
Others
SYMBOL |
NAME |
FUNCTION |
INDEX |
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NO. |
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TH1 |
Fusing |
Monitors the fusing temperature. |
20 |
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Thermistor |
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TH2 |
Optics |
Monitors the optics temperature. |
24 |
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Thermistor |
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TS |
Fusing |
Provides back-up overheat protection in the fusing |
15 |
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Thermoswitch |
unit. |
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TF |
Optics |
Provides back-up overheat protection around the |
18 |
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Thermofuse |
exposure lamp. |
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C |
Main Motor |
Start capacitor. |
32 |
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Capacitor |
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Switches the fusing lamp on and off. (115 V only) |
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TR |
Fusing Triac |
Note: In the 220V-230V/240V version, the triac |
28 |
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is built-in the ac drive board |
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STM |
1-8 |
FT3013/3213 |
G13 |
BP6 |
BP5 |
G10 |
G14 |
G12 TB3 |
G11 |
G23 |
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G9 |
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G8 |
G15 |
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G7 |
G16 |
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G17 |
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G6 |
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G5
G18
G19
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TB1 |
G4 |
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G3 |
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G20 G21 G22 |
BP2 |
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BP1G1 G2 |
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BP4 |
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BP3 |
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G26 |
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G24 |
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G9 |
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G25 |
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G8 |
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TB2 |
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G2 |
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G1: Main Motor Gear |
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G1 |
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G2: Relay Gear |
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G23: Timing Belt Drive |
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G10 Relay gear |
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G8: Relay Gear |
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Gear |
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G11: Timing Belt Drive Gear |
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G9: Relay Gear |
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BP1: Timing Belt Pulley |
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B |
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BP5: Timing Belt Pulley |
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TB1: Timing Belt |
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Cleaning Unit |
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TB3: Timing Belt |
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G3: Fusing Drive Gear |
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A
Development Section
Fusing and Exit Unit
BP6: Timing Belt Pulley
G4: Hot Roller Gear
G12: Development Gear
G7: Relay Gear
Development Unit
G6: Relay Gear
G13: Relay Gear
G5: Exit Roller Gear
G14: Toner Supply CL Gear
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Toner Supply CL |
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Toner Supply Unit |
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FT3013/3213 |
1-9 |
STM |
A
G15: Registration CL
Gear
Registration CL
Registration Rollers
G20: Relay Gear
G17: Relay Roller CL
Gear
Relay Roller CL
G16: 2nd Relay Roller Gear
2nd Relay Rollers
G18: Relay Gear
G19: 1st Relay Roller Gear
1st Relay Rollers
Paper Feed Section
BP2: Timing Belt Pulley
G22: Relay Gear
Paper Feed Section
G21: Paper Feed CL
Gear
Paper Feed CL
Feed Rollers
STM |
1-10 |
B
G24: Timing Belt Drive
Gear
BP3: Timing Belt Pulley
TB2: Timing Belt
BP4: Timing Belt Pulley
G25: Relay Gear
G26: Drum Drive Gear
FT3013/3213
2.EXPOSURE
1.DRUM CHARGE
3.ERASE
8.QUENCHING
4.DEVELOPMENT
7.CLEANING
6. PAPER |
5. IMAGE TRANSFER |
|
SEPARATION |
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FT3013/3213 |
1-11 |
STM |
1. DRUM CHARGE
In the dark, the charge corona unit gives a uniform negative charge to the organic photoconductive (OPC) drum. The charge remains on the surface of the drum because the OPC drum has a high electrical resistance in the dark.
2. EXPOSURE
An image of the original is reflected to the OPC drum surface via the optics assembly. The charge on the drum surface is dissipated in direct proportion to the intensity of the reflected light, thus producing an electrical latent image on the drum surface.
3. ERASE
The erase lamp illuminates the areas of the charged drum surface that will not be used for the copy image. The resistance of the drum in the illuminated areas drops and the charge on those areas dissipates.
4. DEVELOPMENT
Positively charged toner is attracted to the negatively charged areas of the drum, thus developing the latent image. (The positive triboelectric charge is caused by friction between the carrier and toner particles.)
5. IMAGE TRANSFER
Paper is fed to the drum surface at the proper time so as to align the copy paper and the developed image on the drum surface. Then, a strong negative charge is applied to the back side of the copy paper, producing an electrical force which pulls the toner particles from the drum surface to the copy paper. At the same time, the copy paper is electrically attracted to the drum surface.
6. PAPER SEPARATION
A strong ac corona discharge is applied to the back side of the copy paper, reducing the negative charge on the copy paper and breaking the electrical attraction between the paper and the drum. Then, the stiffness of the copy paper causes it to separate from the drum surface. The pick-off pawl help to separate the paper from the drum.
7. CLEANING
The cleaning blade removes any toner remaining on the drum.
8. QUENCHING
Light from the quenching lamp electrically neutralizes the surface of the drum.
STM |
1-12 |
FT3013/3213 |
|
Grid Voltage |
Exposure Lamp |
Development Bias |
Erase Lamp |
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Voltage |
Voltage |
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Image |
Standard image |
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Depends on |
Base exposure lamp |
Base bias voltage factor |
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Density |
density grid voltage |
voltage (Manual or ADS |
(Manual or ADS mode |
paper size |
Control |
(--680 V) |
mode) (SP48) |
[SP34]) |
and |
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reproduction |
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+ |
+ |
+ |
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ratio |
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Drum residual voltage |
VL correction factor |
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Image bias voltage |
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(Vr) correction factor |
+ |
adjustment factor |
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(SP67) |
Reproduction ratio |
(SP37) |
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+ |
correction factor |
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(FT3213 copier only) |
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+ |
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Auto image density |
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level factor (SP34) |
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Drum residual voltage |
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(Vr) correction factor |
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Note: |
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Base bias voltage at |
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manual ID level 7 can be |
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adjusted by SP50 |
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Toner |
Standard ID sensor |
Same as image density |
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ID sensor |
Depends on ID sensor |
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Density |
grid voltage |
control |
bias setting (SP33) |
pattern erase |
Detection |
(--460 V) |
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(Vsg |
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+ |
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detection: |
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Drum wear correction |
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Note: |
Full erase) |
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factor (SP57) |
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For initial 499 copies |
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bias voltage is increased |
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by --20 volts |
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Residual |
Standard ID sensor |
Same as image density |
0 Volts (Fixed) |
Full erase |
Voltage |
grid voltage |
control |
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(All LEDs ON) |
(Vr) |
(--460 V) |
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Detection |
+ |
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Drum wear correction |
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factor (SP57) |
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Between |
0 Volts (Fixed) |
Exposure lamp turns off |
--160 Volts (Fixed) |
Full erase |
Copies |
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+ |
(All LEDs ON) |
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Image bias voltage |
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adjustment factor |
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(SP37) |
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+ |
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Drum residual voltage |
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(Vr) correction factor |
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NOTE: The boxed items can be adjusted by SP mode.
FT3013/3213 |
1-13 |
STM |
AC Power (115V)
When this copier is plugged in and the main switch is turned off, ac power is supplied via the ac drive board to the optional anti-condensation heaters. When the front cover and/or the exit cover is open, the cover safety switch completely cuts off power to all ac and dc components. The RAM pack has a back up power supply (dc battery) for the service program mode data and misfeed job recovery.
When the main switch is turned on, the ac power supply to the anti-condensation heater is cut off and ac power is supplied to the ac drive board. The dc power supply board receives wall outlet ac power through the ac drive board.
The dc power supply board converts the wall outlet ac power input to +5 volts, +24 volts, and a zero cross signal, all of which are supplied to the main board.
STM |
1-14 |
FT3013/3213 |
The main board supplies dc power to all copier dc components. All sensors, switches, thermistors, and the DF interface board (option) operate on +5 volts. The operation panel operates on +5 volts supplied by the main board.
All other dc components including the power relay (RA401) and the main motor relay (RA402) operate on +24 volts.
When the main board receives power, it activates the power relay (RA401) which then supplies ac power to the fusing lamp drive circuit, and the exposure lamp drive circuit on the ac drive board. The fusing lamp drive circuit receives a trigger signal from the main board and the fusing lamp lights. The exposure lamp does not turn on until the main board sends a trigger pulse to the exposure lamp drive circuit.
When the Start key is pressed, the main board energizes the main motor relay (RA402). Then, the main motor and the quenching lamp turn on. When the main switch is turned off, power is cut off to the main board and to RA401, and the optional drum and optics anti-condensation heaters are turned on.
FT3013/3213 |
1-15 |
STM |
SECTION 2
DETAILED SECTION
DESCRIPTIONS
An organic photoconductor (OPC) drum is used in this model.
The OPC drum has the characteristics of:
1.Being able to accept a high negative electrical charge in the dark. (The electrical resistance of a photoconductor is high in the absence of light.)
2.Dissipating the electrical charge when exposed to light. (Exposure to light greatly increases the conductivity of a photoconductor.)
3.Dissipating an amount of charge in direct proportion to the intensity of the light. That is, where stronger light is directed to the photoconductor surface, a smaller voltage remains on the drum.
4.Being less sensitive to changes in temperature (when compared to selenium F type drums).
5.During the drum’s life, drum residual voltage gradually increases and the photoconductive surface becomes worn.
Therefore, some compensation for these characteristics is required.
FT3013/3213 |
2-1 |
STM |
[E]
[A]
[G]
[F]
[C]
[D]
[B]
[C] [D]
The drum unit [A] consists of an OPC drum [B], ID sensor board [C] and a pick-off pawl [D]. When the drum, the pick-off pawl, or the ID sensor is replaced or cleaned, the drum unit must be removed from the copier. Therefore, the drum has a coupling device which is connected to the drum drive gear [E]. The ID sensor connector [F] is used for the ID sensor.
The main motor provides rotation directly to the drum through a series of gears.
The pick-off pawl [D] is always in contact with the drum surface.
STM |
2-2 |
FT3013/3213 |
2.1 OVERVIEW |
[C] |
|
[B]
[D]
[D]
[A]
This copier uses a double wire scorotron and a highly sensitive OPC drum [A]. The corona wires [B] generate a corona of negative ions when the CC/Grid/Bias power pack [C] applies a high voltage. The CC/Grid/Bias power pack also applies a negative high voltage to a stainless steel grid plate [D]. This insures that the drum coating receives a uniform negative charge as it rotates past the corona unit.
The exhaust fan, located above the copy exit, causes a flow of air from the upper area of the development unit through the charge corona unit. This prevents an uneven build-up of negative ions that can cause uneven image density. The exhaust fan runs at half speed when in the stand-by condition and at full speed while copying.
The exhaust fan has an ozone filter (active carbon) which adsorbs ozone (O3) generated by the charge corona. The ozone filter decreases in efficiency over time as it adsorbs ozone. The ozone filter should be replaced at every 80K copies.
The flow of air around the charge corona wires may deposit paper dust or toner particles on the corona wire. These particles may interfere with charging and cause low density bands on copies. To help prevent this, a wire cleaner cleans the corona wire when the operator slides the corona unit out and in.
FT3013/3213 |
2-3 |
STM |
[B]
[A]
[D] [C]
Pads [A] above and below the charge corona wires clean the wires as the charge unit is manually slid in and out.
The cleaner pad bracket [B] rotates when the charge unit is fully extended and the bracket is pulled up against the rear endblock [C]. This moves the pads against the corona wires (see illustration). If the charge unit is not fully extended, the pads do not touch the corona wires.
The pads move away from the wires when the charge unit is fully inserted and the cleaning bracket is pushed against the front endblock [D].
After copier installation the key operator should be instructed to use this mechanism when copies exhibit white streaks, (low image density bands).
STM |
2-4 |
FT3013/3213 |
VA [24] |
CN119-7 |
CN1-1 |
C |
Charge Corona |
VC [5] |
CN119-6 |
CN1-2 |
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CC Trig [ 24] |
CN119-5 |
CN1-3 |
Power Pack - |
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CC/Grid/Bias G |
Grid |
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CN119-3 |
CN1-5 |
(P1) |
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Grid Trig (PWM) [0→0/5] |
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GND [0] |
CN119-1 |
CN1-7 |
B |
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Development |
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Bias |
Main Board (PCB 1) |
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t2 |
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PWM Duty cycle |
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t1 |
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=t2/t1 x 100 (%) |
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The main board supplies +24 volts to the CC/Grid/Bias power pack at CN1-1 as the power supply source. After the Start key is pressed the CPU drops CN1-3 from +24 volts to 0 volts. This energizes the charge corona circuit within the CC/Grid/Bias power pack, which applies a high negative voltage of approximately --7.0 K volts to the charge corona wires. The corona wires then generate a negative corona charge.
The grid plate limits the charge voltage to ensure that the charge does not fluctuate and that an even charge is applied to the drum surface.
The grid trigger pulse applied to CN1-5 is a pulse width modulated signal (PWM signal). This signal is not only a trigger signal, it also changes the voltage level of the grid. As the width of the pulse applied increases (see arrow in above illustration), the voltage of the grid also increases (becomes more negative).
FT3013/3213 |
2-5 |
STM |