Konica Minolta AFR-12 Configuration guide

Table Of Contents-1 AFR-12/AF-5Rev. 1.0/05.99
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GENERAL/MECHANICAL/
ELECTRICAL
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1GENERAL/MECHANICAL/ELECTRICAL
1.1 Specifications - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1
1.2 Components Identification- - - - - - - - - - - - - - - - - - - - 4
1.3 Cross-sectional View- - - - - - - - - - - - - - - - - - - - - - - - 6
1.4 Drive System - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 8
1.5 Electrical Component Layout- - - - - - - - - - - - - - - - - - 9
1.6 Description Of Modes - - - - - - - - - - - - - - - - - - - - - - 10
1.6.1 Mixed Original Mode- - - - - - - - - - - - - - - - - - - - - - - - - - - - - 10
1.6.2 1-Sided Original Mode - - - - - - - - - - - - - - - - - - - - - - - - - - - 10
1.6.3 2-Sided Mode - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 10
1.6.4 2-in-1 Mode - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 10
1.6.5 S-ADF (Single Feed) Mode - - - - - - - - - - - - - - - - - - - - - - - - 10
1.6.6 Thin Mode (As set by "Original Thickness" of User’s Mode) - 11
1.7 Document Take-up/feeding Mechanism - - - - - - - - - 12
1.7.1 Construction - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 12
1.7.2 Document Pick-Up Mechanism - - - - - - - - - - - - - - - - - - - - - 13
1.7.3 Document Take-Up Mechanism- - - - - - - - - - - - - - - - - - - - - 14
1.7.4 Separating Mechanism - - - - - - - - - - - - - - - - - - - - - - - - - - - 16
1.7.5 Single Feed Mechanism - - - - - - - - - - - - - - - - - - - - - - - - - - 17
1.8 Document Transport Mechanism- - - - - - - - - - - - - - 18
1.8.1 Construction - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 18
1.8.2 Document Transport Mechanism - - - - - - - - - - - - - - - - - - - - 18
1.8.3 Original Width Scale Retraction Mechanism - - - - - - - - - - - - 19
1.9 Turnover/Exit Mechanism - - - - - - - - - - - - - - - - - - - 20
1.9.1 Construction - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 20
1.9.2 Turnover/Exit Document Transport Mechanism- - - - - - - - - - 21
1.9.3 Turnover/Exit Switching Mechanism (AFR-12) - - - - - - - - - - 23
1.9.4 Exit Mechanism (AF-5) - - - - - - - - - - - - - - - - - - - - - - - - - - - 24

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1.10 Miscellaneous - - - - - - - - - - - - - - - - - - - - - - - - - - - - 25
1.10.1 Document Size Detection Mechanism - - - - - - - - - - - - - - - - 25
1.10.2 Raised/Lowered Position Detecting Mechanism - - - - - - - - - 25

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General/Mechanical
Electrical
1GENERAL/MECHANICAL/ELECTRICAL
1.1 Specifications
NAME Duplexing Document Feeder AFR-12
Document Feeder AF-5
TYPE ●Paper Take-Up: Take-up from top of stack,
U-turn feeding
●Transport: Automatic single-belt transport system
●Turnover: Loop turnover system (AFR-12)
●Ejection: U-turn ejection
INSTALLATION Mounted onto the copier
TYPE OF DOCUMENT ●Plain paper
●1-Sided and Dual Original
●Scanning (2-in-1) Modes: 50 to 100 g/m²
●2-Sided Mode: 60 to 90 g/m²
●Mixed Original Mode: 60 to 90 g/m²
●Single Feed Mode: AFR-12 · 35 to 200 g/m²,
AF-5 · 35 to 157 g/m²
DETECTABLE
DOCUMENT SIZES A3L, B4L, A4LC, B5LC, A5L, 11" x 17"L, 8-1/2" x 14"L, 8-1/2" x 11"LC, 11" x 15"L, 8-1/4" x 13"L
CAPACITY ●Document Feed Table:
A4 or smaller 50 sheets (of paper weighing 80 g/m²)
B4 or larger 30 sheets (of paper weighing 80 g/m²)
●Document Exit Table:
A4 or smaller 50 sheets (of paper weighing 80 g/m²)
B4 or larger 30 sheets (of paper weighing 80 g/m²)
ALIGNMENT Aligned along the rear Document Edge Guide
DOCUMENT LOADING Face up (Single Feed Mode-Face down)
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MODES ●1-Sided Original
●2-Sided Original
●2-in-1
●Mixed Original
●Single Feed Mode
The "Original Thickness" function of User’s Choice
permits selection between the plain paper and thin
paper mode.
POWER SOURCE 24 VDC, supplied from the copier
POWER
CONSUMPTION AFR-12 · 60W or less/2.5A AF-5 · 48W or less/2A
DIMENSIONS
<AFR-12> Width 627 mm Depth 515 mm
Height 125 mm
WEIGHT
<AFR-12> 13.0 kg
DIMENSIONS
<AF-5> Width 604 mm Depth 515 mm
Height 125 mm
WEIGHT
<AF-5> 12.0 kg or less
OPERATING
ENVIRONMENT Same as copier
DOCUMENTS WHICH
CANNOT BE USED The following documents, if used in the AFR-12/AF-5, are very likely to cause trouble.
Type of Document Possible Trouble
Documents stapled or clipped
together Take-up failure, damaged document, defective drive train due to jammed staples or clips.
Documents glued together Take-up failure, damaged document
Documents folded, torn, or wrinkled Take-up failure, damaged document
Documents severely curled Documents mis-fed due to being dog-eared

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General/Mechanical
Electrical
DOCUMENTS FOR
WHICH
FEEDING CANNOT BE
GUARANTEED.
The following documents, if used in the
AFR-12/AF-5, may or may not cause trouble.
Type of Document Possible Trouble
Slightly curled documents Dog-eared pages, ejection failure
Heat-sensitive paper for facsimile Crease, ejection failure
Coated documents Take-up failure
Documents with uneven surface
(letter head etc.) Take-up failure
Translucent paper Take-up failure, transport failure
Paper just ejected from the ADF Take-up failure, transport failure
Perforated documents (loose
leafed etc.) Take-up failure, transport failure
Documents weighing 40 to 50 g/m² Folded leading edge, transport failure
Folded documents Transport failure, distorted image

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1.2 Components Identification
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3
5
4
6
7
9
8
10
<AF-5> <AFR-12>

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General/Mechanical
Electrical
1. Hookup Cord
2. Maintenance Cover
3. Take-Up Cover
4. Single Feed Tray
5. Document Feed Table
6. Turnover Cover Release Switch (AFR-12)
7. Turnover Cover (AFR-12)
8. Transport Belt
9. Magnet Catches
10.Guide Plate Release Lever (AF-5)

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1.3 Cross-sectional View
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17
16 15 14 13 12 1110 987
6
5
4
3
2
1
19
18 <AFR-12>
22
21 <AF-5>
20

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General/Mechanical
Electrical
1. Document Detecting Sensor (S1)
2. Document Take-Up Roller
3. Document Separator Roller
4. Registration Sensor
5. Single Feed Transport Roller
6. Manual Feed Take-up Sensor (PWB-D)
7. Single Feed Transport Roll
8. Registration Driven Roller
9. Registration Drive Roller
10.Size Sensor
11.Transport Belt Drive Roller
12.Transport Rolls
13.Transport Belt Guide Roller
14.Transport Belt Driven Roller
15. Exit Roller
16.Turnover Roller
17.Turnover/Exit Sensor
18.Turnover/Exit Switching Plate
19.Exit Roll
20.Exit Transport Roll
21.Exit Sensor (S3)
22.Exit Transport Roller

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1.4 Drive System
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Exit Mechanism Take-Up/
Transport Mechanism
<AF-5> <AFR-12>
Transport Belt Drive Mechanism
Turnover/Exit Motor (M3)
Exit Motor (M3)
Transport Motor (M2)
Take-Up Motor (M1)

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General/Mechanical
Electrical
1.5 Electrical Component Layout
Code Name Code Name
PWB-A
PWB-B
PWB-C
PWB-D
PWB-E
M1
M2
M3
M3
Main Control Board
Registration Sensor
Size Sensor
Manual Feed Take-up Sensor
Turnover/Exit Sensor
Take-Up Motor
Transport Motor
Turnover/Exit Motor (AFR-12)
Exit Motor (AF-5)
SOL1
SOL2
SOL3
SOL4
S1
S2
S3
S4
MICLK
Document Stopper Solenoid
Document Pressure Solenoid
Scale Solenoid
Turnover/Exit Switching Solenoid
Document Detecting Sensor
Feed Cover Set Switch
Turnover Cover Set Switch
Exit Sensor
Document Feed Motor Pulse Sensor
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<AFR-12>
<AF-5>

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1.6 Description Of Modes
1.6.1 Mixed Original Mode
●If the Mixed Orig key on the control panel is pressed when the copier is set
in 1- or 2-sided mode, or 2-in-1 mode, the copier detects the size of the
document each time a document is taken up and fed in. The copier feeds
the copy paper of a size selected from among the available paper sources
according to the document size detected.
1.6.2 1-Sided Original Mode
●When in this mode, the copier detects the size of the document which is
taken up and fed in first.
●The copier therefore needs to determine the size of the copy paper only
once based on the detected document size and the copying setting made on
the control panel. This makes for faster paper feed timing on the part of the
copier.
NOTE
If a set of documents of varying sizes are used in this mode, image trouble could
result including missing copy image. (The system does not force a misfeed
condition.)
1.6.3 2-Sided Mode
●The copier automatically turns over the 2-sided document for a speedy
copying operation (copies are made in the order of the first and second
pages).
1.6.4 2-in-1 Mode
●When in this mode, the copier positions two different documents on the
Original Glass side-by-side for making a copy of the two documents onto
one side of a single sheet of paper in a single copy run.
●If this mode is to be used for a set of documents of different widths, the
Mixed Orig key must first be pressed.
1.6.5 S-ADF (Single Feed) Mode
●When a single document is placed in the Single Feed Tray, the ADF
automatically takes it up and feeds it in to let the copier run a single copy
cycle.
NOTE
The ADF automatically takes up and feeds in documents even when two or more
documents are placed on the Single Feed Tray; However, it could result in a double
feed or other faulty condition. Only one document should therefore be loaded.
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General/Mechanical
Electrical
1.6.6 Thin Mode (As set by "Original Thickness" of User’s Mode)
●When in this mode, the ADF transports the document at a low speed and
stops it without letting it hit against the Original Width Scale.
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1.7 Document Take-up/feeding Mechanism
1.7.1 Construction
No. Name No. Name
1
2
3
4
5
6
7
8
Feed Cover Set Sensor (S2)
Document Pressure Pad
Document Feed Motor Pulse Sensor
(M1CLK)
Document Pressure Solenoid (SOL2)
Document Stopper Solenoid (SOL1)
Take-Up Motor (M1)
Transport Motor
Registration Sensor (PWB-B)
9
10
11
12
13
14
15
16
Manual Feed Take-up Sensor
(PWB-D)
Registration Drive Roller
Single Feed Transport Roller
Registration Driven Roller
Document Separator Roller
Document Take-Up Roller
Size Sensor (PWB-C)
Document Stopper Guide Plate
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General/Mechanical
Electrical
1.7.2 Document Pick-Up Mechanism
●The document pick-up mechanism consists of the Document Pressure
Pads, Document Stopper Guide Plate and Document Take-Up Roller.
●When documents are loaded on the document feed table, they are pressed
against the Document Take-Up Roller by the Document Pressure Pads,
then they are taken up by the Document Take-Up Roller one by one,
commencing with the one from the bottom of the stack.
●The Document Stopper Guide Plate determines the leading edge position of
the documents loaded in the ADF. It is normally in the raised position, and
is lowered at the start of pick-up motion.
SOL1/2 Control
SOL 1 and 2 are energized and de-energized by the signal output from IC3A on
PWB-A.
SOL1 IC3A-20 IC3A-21 SOL2 IC3A-16
ON
(Stopper UP) HLONH
OFF
(Stopper DOWN) LHOFFL
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1.7.3 Document Take-Up Mechanism
●The document take-up mechanism takes up a document from the bottom of
a set of documents loaded on the Single Feed Tray and feeds it up to the
registration roller. It is driven by the Take-Up Motor.
●The Take-Up motor (M1) rotates the Document Take-Up Roller, Document
Separator Roller and Single Feed Transport Roller via Gears, Pulleys and
Timing Belt.
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General/Mechanical
Electrical
M1 Control
M1 is controlled by the following output signals. M1 speed is detected by the pulse
disk mounted on the motor output shaft and Document Feed Motor Pulse Sensor
(M1 CLK). M1 pulses are applied to IC1A-74, and period A is maintained at the
same length so that the motor rotates at a constant speed.
IC3 Forward Backward
Pin 65
(MIL1)
Pin 66
(MUL2)
Pin 67
(MIHI)
Pin 68
(MIL2)

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1.7.4 Separating Mechanism
●Movable Separator Guide Plates are used in the Document Separating
Mechanism. The height of the 1st and 2nd Separator Guide Plates can be
adjusted by a lever or screws, respectively.
●Lowering the Guide Plates can reduce the occurrence of Smudging on the
back of documents and smearing of the document image by reducing the
number of documents delivered of the Separator Roller.
NOTE
Both 1st and 2nd Separator Guide Plates have been set in the raised position at the
time of shipment from the factory.
●The Separator Pad is designed to be pressed against the Separator Rollers.
This ensures that documents are transported one by one even if two or more
documents are fed from the Take-Up Roller.
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General/Mechanical
Electrical
1.7.5 Single Feed Mechanism
●The single feed mechanism is used to copy documents one at a time only.
●Open the Single Feed Tray and set a document in place. The Manual Feed
Take-up Sensor (PWB-D) will detect the document and the Single Feed
Transport Roller/Registration Roller begins to rotate to take up the
document automatically even if the Start key is not pressed.
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Take-Up Motor (M1)
Transport Motor (M2)
Manual Feed
Take-up Sensor (PWB-D)
Single Feed
Transport Roller
Registration Drive
Roller