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Safety precautions This booklet provides safety warnings and precautions for our service personnel to ensure the safety of their customers, their machines as well as themselves during maintenance activities. Service personnel are advised to read this booklet carefully to familiarize themselves with the warnings and precautions described here before engaging in maintenance activities.
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Safety warnings and precautions Various symbols are used to protect our service personnel and customers from physical danger and to prevent damage to their property. These symbols are described below: DANGER: High risk of serious bodily injury or death may result from insufficient attention to or incorrect compliance with warning messages using this symbol.
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1.Installation Precautions WARNING • Do not use a power supply with a voltage other than that specified. Avoid multiple connections to one outlet: they may cause fire or electric shock. When using an extension cable, always check that it is adequate for the rated current....................•...
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2.Precautions for Maintenance WARNING • Always remove the power plug from the wall outlet before starting machine disassembly....• Always follow the procedures for maintenance described in the service manual and other related brochures............................• Under no circumstances attempt to bypass or disable safety features including safety mechanisms and protective circuits.
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• Do not remove the ozone filter, if any, from the copier except for routine replacement..... • Do not pull on the AC power cord or connector wires on high-voltage components when removing them; always hold the plug itself...................... •...
3KB-2 1-2 Installation 1-2-1 Installation environment Installation location (Be based on the machine establishment place.) Avoid direct sunlight or bright lighting. Ensure that the photo-conductor will not be exposed to direct sunlight or other strong light when removing paper jams. Avoid extremes of temperature and humidity, abrupt ambient temperature changes, and hot or cold air directed onto the machine.
1-3 Maintenance Mode 1-3-1 Maintenance mode The machine is equipped with a maintenance function which can be used to maintain and service the machine. (1) Executing a maintenance item Start Press the status key. Enter “10871087” using Maintenance mode is entered. the numeric keys.
(2) Contents of the maintenance mode items Maintenance Description item No. Checking switches for paper conveying U031 Description Displays the on-off status of each paper detection switch on the paper path. Purpose To check if the switches for paper conveying operate correctly. Method 1.
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Maintenance Description item No. Setting the ejection restriction U342 Description Sets or cancels the restriction on the number of sheets to be ejected continuously when the internal eject tray is selected as the eject location. Purpose According to user request, sets or cancels restriction on the number of sheets. Setting 1.
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1-4 Troubleshooting 1-4-1 Paper misfeed detection (1) Paper misfeed indication When paper jams, the machine immediately stops operation and the occurrence of a paper jam is indicated on the opera- tion panel. To remove the jammed paper, open the conveying cover. To reset the paper misfeed detection, open and close the conveying cover to turn safety switch 2 off and on.
3KB-2 (3) Paper misfeeds Problem Causes/check procedures Corrective measures A piece of paper torn from Check visually and remove it, if any. Paper jams when the paper is caught around main power switch is feedshift switch or job sepa- turned on. rator eject switch.
1-4-2 Electric problems Troubleshooting to each failure must be in the order of the numbered symptoms. Problem Causes Check procedures/corrective measures 1. Broken solenoid coil. Check for continuity across the coil. If none, replace the solenoid. The feedshift sole- 2. Poor contact in the con- Reinsert the connector.
1-4-3 Mechanical problems Problem Causes/check procedures Corrective measures Check if the contact between the job eject pul- Check and remedy. Paper jams. leys and job eject roller is correct. Check if the job eject pulleys, job eject roller Grease the bushings and gears. Abnormal noise is heard.
2-1 Mechanical construction 2-1-1 Construction of each section The job separator consists of the components shown in Figure 2-1-1. It switches the paper path to eject printed paper to the job separator tray. Figure 2-1-1 Job separator Job eject roller Job eject pulleys Job separator tray Job separator eject switch (JBESW)
(1) Switching the paper path If the job separator is selected for the eject location, when a print is made, the feedshift solenoid (FSSOL) turns on and the feedshift guide of the machine operates to switch the paper path to the job separator. The printed paper is conveyed to the job separator and then ejected to the job separator tray.
3KB-1 2-2 Electrical Parts Layout 2-2-1 Electrical parts layout Machine front Machine inside Machine rear Figure 2-2-1 Job separator eject switch (JBESW).... Detects a paper jam in the job separator. Ejected paper detection switch (EPDSW)..Detects the presence of paper on the job separator tray. Feedshift solenoid (FSSOL)......
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2-3 Appendixes Maintenance parts list Maintenance part name Alternative Fig. Ref. Part No. part No. Name used in service manual Name used in parts list Job eject roller ROLLER,EJECT AVGR05862Z Job eject pulleys PULLEY,BRANCH 907925P Periodic maintenance procedures Maintenance Section Method Maintenance cycle Points and cautions...
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