User manual KONICA MINOLTA SF-101 SF101 (OT101) SERVICE MANUAL

[. . . ] SERVICE MANUAL Models SF-101 (OT-101) JANUARY 2004 CSM-SF101 KONICA MINOLTA BUSINESS SOLUTIONS U. S. A. , INC. SF-101 (OT-101) SERVICE MANUAL JANUARY 2004 Used on Konica Models 7255/7272 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 Minolta Business Solutions U. S. A. , Inc. 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 Minolta Business Solutions U. S. A. , Inc. , makes no representations or warranties, either expressed or implied, that the information contained in this service manual is complete or accurate. [. . . ] (4) For reports and measures concerning accidents, consult your superior, and follow the regulations set in "Standards for the Control Program for Measures Against Electrical Equipment Accidents". [5] Conclusion (1) Safety of users and customer engineers depends highly on accurate maintenance and administration. Therefore, safety can be maintained by the appropriate by the proper daily service work conducted by the customer engineer. (2) When performing service, equipment on the site must be tested for safety. The customer engineer must verify the safety of parts and ensure appropriate management of the equipment. [3] Handling of Materials for Servicing CAUTION: Alcohol-based and acetone- based cleaners are highly flammable and must be handled with care. When using these materials for cleaning parts, observe the following precautions. Disconnect the power cord from the AC outlet. Use only a small amount of cleaner at a time and take care not to spill any liquid. If this happens, immediately wipe it off. Perform cleaning only in an environment where sufficient ventilation is assured. Breathing large quantities of organic solvents can lead to discomfort. Do not replace the cover or turn the unit on before any solvent remnants on the cleaned parts have fully evaporated. (1) (2) (3) (4) CONTENTS CONTENTS SAFETY AND IMPORTANT WARNING ITEMS Refer to the 7155/7165/7255/7272 service manual on page . 1-6 II UNIT EXPLANATION III DIS. /ASSEMBLY 1. 2-2 Control of M701 (conveyance motor) . 2-8 Control of M702 (Tray up/down motor) . 3-1 1. 1 Removing/Reinstalling the Shift Tray . 3-1 1. 2 1. 3 Removing/Reinstalling the Cover/F . DRIVE SYSTEM DIAGRAM I OUTLINE 3. 1 Paper Conveyance Drive Exit follower roller Conveyance follower roller Exit roller Conveyance roller Reverse roller Timing belt M701 (Conveyance motor) sf1011003 3. 2 Shift Drive Shift tray Crankshaft Worm wheel Timing belt M703 (Shift motor) Shift tray plate sf1011004 1-4 DRIVE SYSTEM DIAGRAM 3. 3 Tray Drive Shift tray M702 (Tray up/down motor) Up/down belt sf1011005 1-5 I OUTLINE PAPER CONVEYANCE PROCESS 4. PAPER CONVEYANCE PROCESS I OUTLINE 4. 1 4. 2 Non-Sort Mode Sort/Group Mode Conveys and ejects the papers ejected from the main body to the shift tray. Sets the shift tray to the position it is moved 30mm and conveys and ejects the papers ejected from the main body. 30m m Shift tray sf1011006 1-6 2 2 UNIT EXPLANATION UNIT EXPLANATION 2 UNIT EXPLANATION Blank page EXTERNAL SECTION II UNIT EXPLANATION 1. EXTERNAL SECTION 1. 1 Composition Cover / R Conveyance cover Cover /F Shift tray sf1012001 1. 2 Mechanism Mechanism Method Open/Close of conveyance cover Clearing paper jam *1 *1 For the paper jammed at the paper conveyance section, hold the knob and open the conveyance cover to the direction of the arrow to remove the paper. Knob Conveyance cover sf1012002 2-1 II UNIT EXPLANATION PAPER CONVEYANCE SECTION 2. PAPER CONVEYANCE SECTION 2. 1 Composition Exit follower roller Exit roller PS701 SW701 Conveyance follower roller II UNIT EXPLANATION Conveyance roller Reverse roller M701 Timing belt sf1012003 2. 2 Mechanism Method Belt-driven by conveyance motor Oscillating system driven by gear /sponge roller Mechanism Conveyance Reverse roller *1 *1 Reverse roller, made of sponge, aligns the paper stack in the vertical direction of the ejected papers by rotating opposite in the direction to the ejection due to the gear drive from the exit roller. To absorb the up/down movements during the ascent/descent operations of shift tray, up and down oscillation is allowed mainly for the shaft of exit roller. Reverse roller Exit roller Shift tray (bracket parts) sf1012004 2-2 PAPER CONVEYANCE SECTION 2. 3 Control of M701 (Conveyance Motor) 24V 24V M701 DRV A 24V PGND PGND FGND GND COVER SW 24V IN GND GND M701 DRV A M701 DRV B M701 DRV B M701 MTXD SGND MCTS MRXD SGND MRTS1 RXD GND RTS TXD GND CTS SW701 GND PS701 IN 5V PS701 MAIN BODY SFCB sf1012005 M701 (conveyance motor) uses DC stepping motor driven by 24V and is controlled by SFCB (SF control board). The related signals are PS701 (conveyance sensor) and SW701 (conveyance cover SW). [. . . ] Abnormal ascent detection When SW702 (tray upper limit SW) turns OFF because of the abnormal ascent of the tray, M702 (tray up/ down motor) makes a stop. SFCB input signals (1) PS703 IN (PS703 SFCB) Detection signal of tray upper limit position [H]: Other than upper limit position [L]: Upper limit position is detected (2) PS704 IN (PS704 SFCB) Detection signal of tray lower limit position [H]: Lower limit position is detected [L]: Other than lower limit position (3) TRAY SW2 (SW702 SFCB) Detection signal of abnormal position exceeding the tray upper limit [OPEN]: Upper limit abnormality is detected [CLOSE]: Normal time B. Output signals (1) M702 DRV-F (SFCB M702) Forward-drive control signal for M702 (2) M702 DRV-R (SFCB M702) Reversed-drive control signal for M702 2-10 DISASSEMBLY/ASSEMBLY 3 DIS. /ASSEMBLY 3 3 DIS. /ASSEMBLY This section explains how to disassemble and reassemble the machine. When disassembling and reassembling the machine, follow the precautions given below. [. . . ]