IT-101
SERVICE HANDBOOK
2001.02
Ver. 1.0
KONICA CORPORATION
TECHNOLOGY SUPPORT CENTER
TOKYO JAPAN
KONICA CORPORATION
COPYRIGHT ©2001
CN13NG1780
CONTENTS
CONTENTS
SAFETY AND IMPORTANT WARNING ITEMS ...........
Refer to the 7020/25/30/35 service handbook on page C-1
1. OUTLINE
IT-101 PRODUCT SPECIFICATIONS ................... 1-1
[1] Type ........................................................ 1-1
[2] Functions ................................................ 1-1
[3] Machine data .......................................... 1-1
[4] Maintenance ........................................... 1-1
[5] Machine environment ............................. 1-1
CENTER CROSS SECTION/
DRIVE SYSTEM DIAGRAM ................................... 1-2
2. UNIT EXPLANATION
CONVEYANCE/PAPER EXIT SECTION ............... 2-1
[1] Composition ............................................ 2-1
[2] Mechanisms ........................................... 2-1
[3] Paper exit control .................................... 2-2
[4] Door open/closed detection control ........ 2-2
[5] Tray paper exit switching control ............ 2-3
3. DISASSEMBLY/ASSEMBLY
DISASSEMBLY/ASSEMBLY .................................. 3-1
[1]
Removing and reinstalling the IT unit .............
1 OUTLINE
2 UNIT EXPLANATION
3-1
3 DIS./ASSEMBLY
1
OUTLINE
1 OUTLINE
2 UNIT EXPLANATION
3 DIS./ASSEMBLY
IT-101 PRODUCT SPECIFICATIONS
IT-101
[1] Type
Type: Built-in two-tier tray with paper
exit guide gate
[2] Functions
Kinds of paper: 50g/m2 to 160g/m2 high-quality
paper
Paper size
Small size: B6R, A5R, 5.5 x 8.5R
Medium size: B5, B5R, A4, A4R, 8.5 x 11, 8.5
x 11R, 5.5 x 8.5
Large size: A3, B4, F4, 11 x 17, 8.5 x 14
Maximum
Paper capacity: Upper tray: 50 sheets
Lower tray: 100 sheets
Note:The above capacities
apply to when paper of
the same size is stacked
continuously.
[3] Machine data
Power source: DC24V/5V (supplied from the
main body)
Maximum power
Consumption: Max.6.5VA
Weight: 3.6kg
Machine
dimensions: Length 430mm
Depth 449mm
Height 137mm
1 OUTLINE
2 UNIT EXPLANATION
3 DIS./ASSEMBLY
[4] Maintenance and Life
Maintenance: Same as the main body
Machine life: Same as the main body
[5] Machine environment
Temperature: 10 to 30˚C
Humidity: 20 to 80%RH
Note: Specifications are subject to change without
notice.
1-1
IT-101
CENTER CROSS SECTION / DRIVE SYSTEM DIAGRAM
1 OUTLINE
2 UNIT EXPLANATION
3 DIS./ASSEMBLY
<Center cross section>
Paper exit tray (upper)
Paper exit tray (lower)
Paper exit roller (upper)
Paper exit roller (lower)
Fixing unit (Main body side)
Paper exit guide gate
Conveyance roller
Paper exit roller
(Main body side)
Switching guide
<Drive system diagram>
Paper exit roller (upper)
Paper exit tray (upper)
Paper exit tray (lower)
IT gate SD (SD8)
Paper exit guide gate
IT drive coupling
Conveyance roller
Timing belt
Paper exit roller (lower)
Main motor (M1)
1-2
2
1
1 OUTLINE
2 UNIT EXPLANATION
UNIT EXPLANATION
3 DIS./ASSEMBLY
CONVEYANCE/PAPER EXIT SECTION
IT-101
[1] Composition
Paper exit tray (upper)
Paper exit tray (lower)
Paper exit roller (upper)
Paper exit roller (lower)
1 OUTLINE
IT gate SD
Paper exit guide gate
IT drive coupling
2 UNIT EXPLANATION
Conveyance roller
Timing belt
3 DIS./ASSEMBLY
[2] Mechanisms
Mechanism Method
Paper conveyance *1 Conveyance roller
Paper exit switching *2 Paper exit guide gate
*1: Paper conveyance
The paper conveyed from the fixing unit in the main
body is conveyed to either paper exit roller (upper) or
(lower) by the conveyance roller. The conveyance
roller is driven by the main motor on the main body
(M1), and driving power is transmitted to both paper
exit roller (upper) and (lower) via a timing belt.
*2: Paper exit switching
The paper that is conveyed by the conveyance
roller is exited to paper exit tray (upper) or paper
exit tray (lower) by the paper exit guide gate. The
upper exit guide gate is operated by the IT gate SD
(SD8). If the IT gate SD goes ON, paper is ejected
to paper exit tray (lower).
Main motor (M1)
Paper exit guide gate
IT gate SD
Solenoid arm
OFF :
ON :
2-1
IT-101
1 OUTLINE
[3] Paper exit control
[4] Door open/closed detection control
2 UNIT EXPLANATION
1. Operation
PS23 (IT exit PS (upper)) and PS24 (IT exit PS
(lower)) detect whether paper has passed through
within a predetermined period of time after it has
passed through PS3 (paper exit PS) on the main
body.
2. Signals
a. Output signals
3 DIS./ASSEMBLY
(1) PS23 SIG (PS23→PRDB)
Paper exit (upper/lower) detection signal
[H] : No paper is present
PRDB
PS23.SIG
S.GND
PS25 SIG
5V
PS23
PS24
PS25
PRDB
PS23.SIG
S.GND
PS25 SIG
5V
PS23
PS24
PS25
1. Operation
The open/close status of the IT door is detected in
accordance with the ON/OFF status of PS25 (IT door).
2. Signal
a. Output signals
PS25 SIG (PS25→PRDB)
IT door open / closed detection signal
[H] : Door closes
[L] : Door opens
[L] : Paper is present
2-2
IT-101
[5] Tray paper exit switching control
5V
PS23.SIG
S.GND
PS25 SIG
24V
SD8 DRIVE
PRDB
1. Operation
SD8 (IT gate SD) is set at ON at the same time as the
start button is set at ON when selecting the paper exit
tray (lower), and PS24 (IT exit PS (lower)) is set at OFF
when the end of the last piece of paper is detected.
2. Signals
a. Output signals
(1) SD8 DRIVE (PRDB→SD8)
[H] : SD8 OFF
PS23
PS24
PS25
SD8
1 OUTLINE
2 UNIT EXPLANATION
3 DIS./ASSEMBLY
[L] : SD8 ON
2-3
3
DISASSEMBLY/ASSEMBLY
1 OUTLINE
2 UNIT EXPLANATION
3 DIS./ASSEMBLY
1 OUTLINE
2 UNIT EXPLANATION
3 DIS./ASSEMBLY
This section explains how to disassemble and reassemble the
machine.
Observe the following precautions when performing disassembly
and assembly work.
1. Be sure to unplug the power cord before working on the
machine.
2. Perform all reassembly work by reversing the order in which the
component was disassembled, unless otherwise specified.
3. Do not lose small parts (screws, etc.) or insert them in the
wrong place.
4. Install all parts completely before operating the machine.
5. Do not loosen the screws indicated as disallowed for removal.
DISASSEMBLY/ASSEMBLY
IT-101
[1] Removing and reinstalling the IT Unit
Caution: Make sure the power plug is taken
out of the socket.
(1) Use nippers or similar tool to cut off the side cover/
rear then remove the IT drive cover from the side
cover/rear on the main body.
(2) Remove the two set shoulder screws of the main
body, and then attach the main body positioning
plate with the two set screws.
Main body positioning plate
IT drive cover
Side cover/rear
Set screws
(4) Attach the two paper exit trays to the IT unit after
the IT unit has been attached to the main body.
IT unit
Paper exit trays
(5) Remove the inner tray unit in the opposite sequence
to removal. When using a finisher, however, or
when not using the IT unit continuously, be sure to
install the drive auxiliary cover to protect the IT drive
coupling.
Drive auxiliary cover
Set screws
1 OUTLINE
2 UNIT EXPLANATION
3 DIS./ASSEMBLY
(3) Open the IT door, attach the set screw, and then
close the IT door.
IT door
Set screw
Drive auxiliary cover
3-1
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