User manual KONICA MINOLTA IT-101 IT101 SERVICE MANUAL

[. . . ] SERVICE MANUAL Model IT-101 INNER EXIT TRAY MARCH 2001 CSM-IT101 KONICA BUSINESS TECHNOLOGIES, INC. IT-101 SERVICE MANUAL MARCH 2001 Used on Konica 7035 IMPORTANT NOTICE Because of the possible hazards to an inexperienced person servicing this equipment, as well as the risk of damage to the equipment, Konica Business Technologies strongly recommends that all servicing be performed by Konica-trained service technicians only. Changes may have been made to this equipment to improve its performance after this service manual was printed. Accordingly, Konica Business Technologies, Inc. , makes no representations or warranties, either expressed or implied, that the information contained in this service manual is complete or accurate. It is understood that the user of this manual must assume all risks or personal injury and/or damage to the equipment while servicing the equipment for which this service manual is intended. Corporate Publications Department © 2001, KONICA BUSINESS TECHNOLOGIES, INC. [. . . ] Do not route the power cord where it is likely to be stepped on or crushed. Carefully remove all toner and dirt adhering to any electrical units or electrodes. After part replacement or repair work, route the wiring in such a way that it does not contact any burrs or sharp edges. Do not make any adjustments outside of the specified range. · · Summary It is the responsibility of every technician to use professional skills when servicing Konica products. There are no short cuts to high-quality service. Each copier must be thoroughly inspected with respect to safety considerations as part of every routine service call. The operability of the copier, and more importantly, the safety of those who operate or service the copier, are directly dependent upon the conscientious effort of each and every technician. Remember. . . when performing service calls, use good judgement (have a watchful eye) to identify safety hazards or potential safety hazards that may be present, and correct these problem areas as they are identified -- the safety of those who operate the copier as well as those who service the copier depend on it! · · · · vi IT-101 IT-101 PRODUCT SPECIFICATIONS [1] Type Type: Built-in two-tier tray with paper exit guide gate [2] Functions Kinds of paper: Paper size Small size: Medium size: Large size: 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. B6R, A5R, 5. 5 x 8. 5R B5, B5R, A4, A4R, 8. 5 x 11, 8. 5 x 11R, 5. 5 x 8. 5 A3, B4, F4, 11 x 17, 8. 5 x 14 13 lb. high-quality paper [3] Machine data Power source: Maximum power Consumption: Weight: Machine dimensions: DC24V/5V (supplied from the main body) Maximum 6. 5VA 7. 9 lb. Height 5. 4 in. [4] Maintenance Maintenance: Same as the main body [5] Machine environment Temperature: Humidity: 50 to 86°F 20 to 80%RH Note: Specifications are subject to change without notice. 1 IT-101 CENTER CROSS SECTION / DRIVE SYSTEM DIAGRAM <Center cross section> Paper exit guide gate Paper exit roller (upper) Conveyance roller Paper exit roller (Main body side) Paper exit tray (upper) Switching guide Paper exit tray (lower) Paper exit roller (lower) Fixing unit (Main body side) <Drive system diagram> IT gate SD (SD8) Paper exit roller (upper) Paper exit guide gate IT drive coupling Conveyance roller Paper exit tray (upper) Timing belt Paper exit roller (lower) Paper exit tray (lower) Main motor (M1) 2 IT-101 CONVEYANCE/PAPER EXIT SECTION [1] Composition IT gate SD Paper exit roller (upper) Paper exit guide gate IT drive coupling Conveyance roller Paper exit tray (upper) Timing belt Paper exit roller (lower) Paper exit tray (lower) Main motor (M1) [2] Mechanisms Method Conveyance roller Paper exit guide gate IT gate SD Paper exit guide gate Mechanism Paper conveyance *1 Paper exit switching *2 *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). OFF : ON : Solenoid arm 3 IT-101 [3] Paper exit control 5V PS23. SIG S. GND [4] Door open/closed detection control 5V PS23. SIG S. GND PS23 PS23 PS24 PS24 PS25 SIG PS25 PS25 SIG PS25 PRDB PRDB 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. 1. Operation The open/close status of the IT door is detected in accordance with the ON/OFF status of PS25 (IT door). 2. a. Signal Output signals PS25 SIG (PS25 - PRDB) > IT door open / closed detection signal [H] : Door closes [L] : Door opens 2. a. Signals Output signals (1) PS23 SIG (PS23 - PRDB) > Paper exit (upper/lower) detection signal [H] : No paper is present [L] : Paper is present 4 IT-101 [5] Tray paper exit switching control 5V PS23. SIG S. GND PS23 PS24 PS25 SIG PS25 24V SD8 DRIVE SD8 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. a. Signals Output signals > (1) SD8 DRIVE (PRDB - SD8) [H] : SD8 OFF [L] : SD8 ON 5 IT-101 DISASSEMBLY/ASSEMBLY [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. If you know a part's description, but don't know where to look to find the part number, use the alphabetical index to determine likely page and reference numbers. Then look at the illustrations to determine that you have identified the correct part. Locate the part number using the listing on the opposite page. [. . . ] Caution 2: Do NOT cut off the split cover marked by the slanted line. 5. Install the inner tray positioning plate. (TP screw M3x10: 2 pcs. ) Caution: Secure the inner tray positioning plate by hanging it from the appropriate black rubber ribbings. Fan cover (top) TP screws M3x10 3. Remove the two shoulder screws for tray installation. Shoulder screws 6. [. . . ]