User manual KONICA MINOLTA AD-723 AD723 SERVICE MANUAL

[. . . ] SERVICE MANUAL Model AD-723 FEBRUARY 1999 CSM-AD723 KONICA BUSINESS TECHNOLOGIES, INC. AD-723 SERVICE MANUAL FEBRUARY 1999 Used on Konica Model 7823 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. [. . . ] A toothed washer is used with the screw that secures the ground wire to ensure positive conduction. Do not forget to insert this washer at reassembly. To reassemble the unit, reverse the order of disassembly unless otherwise specified. Do not attempt to loosen or remove the screw to which red paint has been applied. The screw to which blue paint has been applied may be removed, but needs to be adjusted whenever it has been removed. Purpose of Applying Red Paint Red paint is applied to those screws that cannot be readjusted or reinstalled in the field. 1 DIS A S S E MBLY 1-1. Removal of the Exterior Covers and Guides 1 6 4 2 4458M008AA 3 5 4458M008AA No. 1 2 3 4 5 6 Cover/Guide Name Rear Cover Front Cover Exit Section Lower Cover Exit Section Cover Turnover Lower Guide Vertical Transport Guide No. of Screws 4 4 4 2 2 2 None None Steps Required Before Removal Removal of the Front and Rear Covers Removal of two ornamental covers Removal of the Front and Rear Covers Removal of the Front and Rear Covers D -1 1-2. Removal of Vertical Transport Clutch CL1 1. Unplug the connector of CL1. 4458D001AA 4. Loosen the screw shown to release the belt tension. *Do not forget to tighten this screw at reinstallation. 4458D005AA 5. Snap off one plastic ring and remove the flange and belt. 4458D002AA 6. Loosen one screw with an Allen wrench to remove CL1 and the collar. 4458D003AA 0 CL1 *When reinstalling CL1, press it against the collar and, at the same time, tighten the screw. Hook the lock of the clutch onto the frame. Frame Collar 4458D004AA D -2 1-3. Removal of the Vertical Transport Roller (Metallic One) 1. Unhook two tension coil springs. 4458D006AA 3. Remove the plastic rings and bushings from the front and rear ends and then remove the Vertical Transport Roller. 4458D007AA 1-4. Removal of the Vertical Transport Roller (Rubber One) 1. Remove Remove Remove Remove the Front and Rear Covers. Vertical Transport Clutch CL1 and collar. the plastic ring and bearing from the rear end. 4458D008AA 5. [. . . ] NO. PART NUMBER DESCRIPTION 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 12ZN97010 12ZN44010 12ZN44020 12ZN44030 25TU05120 12ZN44050 12ZN44060 12ZN44070 12ZN44080 12ZN97020 12ZN44090 25TU12060 12ZN44110 12ZN44120 12ZN44130 12ZN44140 12ZN44150 12ZN97030 12ZN44160 12ZN44170 12ZN44180 12ZN44190 12ZN44200 12ZN44210 12ZN97040 12ZN44220 25TU40140 12ZN44240 12ZN44250 12ZN44260 12ZN44270 12ZN44280 25TU40150 12ZN44300 12ZN44310 12ZN44760 Label (Caution Hot) Rear cover Cord bushing Bracket Edge cover Bracket Torsion spring Lock lever Bracket Label (Look Release) Cover Cover Cover Bracket Guide plate Shoulder screw Cover Label (Jam Removal) Front frame Shaft Cushion Lock plate Lock release lever Top cover Label Plate spring Roll Seal Guide plate Sponge Support plate Shaft Plate spring Label (Caution Hot) Turnover tray Cover HARDWARE REF. a b c d e f g h i j PART NUMBER 25TU01440 25TU01530 25TU01590 25TU02410 25TU02460 25TU02850 25TU03420 25TU03630 25TU03710 25TU03730 Model AD-723 1st Edition Konica Business Technologies. , Inc. Page 3 February, 1999 Driving Section Page 4 February, 1999 Konica Business Technologies. , Inc. Model AD-723 1st Edition REF. NO. PART NUMBER DESCRIPTION 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 12ZN77010 12ZN77020 12ZN44320 12ZN78010 12ZN44330 12ZN44080 12ZN44350 12ZN78020 25TU85010 12ZN44360 12ZN80010 12ZN77030 12ZN77040 12ZN77050 12ZN44370 25TU75470 12ZN44380 12ZN44390 12ZN44400 12ZN75020 25TU78010 12ZN44410 12ZN44420 12ZN82010 12ZN44430 25TU75660 12ZN44440 25TU40300 25TU40330 12ZN90010 12ZN44470 12ZN44480 25TU53120 25TU40320 25TU40290 25TU85140 12ZN44520 12ZN44530 12ZN90020 25TU20290 12ZN-9010 25TU60860 12ZN44560 12ZN82020 12ZN44570 12ZN44580 12ZN44590 25TU10150 25TU85070 12ZN44610 Gear (Z=30) Gear (Z=24) Flange Timing belt Pulley (Z=31) Bracket Pulley (Z=16) Timing belt Photosensor Bracket Motor Gear (Z=33) Pulley gear (Z=64, 15) Gear (Z=19) Tension spring Bushing Roll Bracket Tension spring Bushing Gear (Z=24) Bracket Tension spring Clutch Washer Ball bearing Guide plate Sponge Holder Harness Ferrite core Retaining ring Shaft Actuator Torsion spring Photosensor Guide plate Guide plate Harness PWB support PW board (A) PWB support Bracket Solenoid Guide plate Guide plate Neutralizing brush Bracket Microswitch Torsion spring HARDWARE REF. a b c d e f g h i j k m n PART NUMBER 25TU01170 25TU01400 25TU01630 25TU01520 25TU02140 25TU04010 25TU02410 25TU02430 25TU02450 25TU02460 25TU03210 25TU03710 25TU03720 Model AD-723 1st Edition Konica Business Technologies. , Inc. Page 5 February, 1999 Driving Section Page 6 February, 1999 Konica Business Technologies. , Inc. Model AD-723 1st Edition REF. [. . . ]