ricoh ft4490sp free download

File name ft4490sp.rar

Circuit diagrams&Service manuals 31 January '89 VARIABLE RESISTORS 1. Main Board Number Function VR147 Adjusts the OW (original width) sensor voltage VR148 Adjusts the OL (original length) sensor voltage VR201 Adjusts the ID (image density) sensor voltage VR202 Adjusts the AD (auto density) sensor voltage 2. Lamp Regulator Number Function VR1 Light adjustment VR2 Factory Use VR3 Factory Use 3. DF Main Board Number Function VR101 VR103 Belt drive motor speed adjustment VR104 Original entrance sensor output (IC 116-5> + 8V : With paper) (IC 116-5< + 4V : Without paper) VR105 Original width sensor output (IC 116-7> + 8V : With paper) (IC 116-7< + 4V : Without paper) 4-5 31 January '89 DIP SWITCHES 1. Operation Panel DIP SW 1-1 DIP Switch Normai Function 1-1 OFF Drum conditioning 1-2 OFF Free run 1-3 OFF Jam detection disable 1-4 OFF Sorter instructions 1-5 OFF Beeper sound disable 1-6 OFF Oil end check off 1-7 OFF Manual image density mode priority (ON: manual mode, OFF: ADS mode) 1-8 OFF SP Mode 2. DF Main Board DIP SW 101 101-1 101-2 101-3 101-4 Function ON OFF OFF OFF Normal mode ON OFF OFF ON Free run ON ON OFF ON Belt speed adjustment (VR103) ON ON ON ON All indicators on 4-6 31 January '89 SERVICE PROGRAM MODE (SP MODE) OPERATION The service program mode is used to check and change electrical data or adjustment values. 1. Data Change Mode 1. Remove the DIP SW cover and turn on DIP SWI -8 on the operation panel. (The Service Call indicator will start blinking.) 2. Enter the desired SP Mode number using the numeral keys. (The entered number is displayed in the copy counter.) 3. Press the Enter key. (The SP Mode number is shifted into the Magnifica- tion indicator and the actual data is displayed in the copy counter.) 4. If the data is correct,