Ricoh A250 Service Manual page 815

3.8.2 EXTENDED MEMORY BOARD INSTALLATION
PROCEDURE.................................................................................3-31
3.9 DRUM HEATER INSTALLATION (OPTION)...........................................3-32
3.10 OPTICS ANTI-CONDENSATION HEATER INSTALLATION
(OPTION) ..............................................................................................3-33
3.11 TRAY HEATER INSTALLATION ...........................................................3-34
3.12 KEY COUNTER.....................................................................................3-40
SERVICE TABLES
4. SERVICE TABLES...................................................................... 4-1
4.1 GENERAL CAUTION ................................................................................4-1
4.1.1 AIO CARTRIDGE (ALL-IN-ONE CARTRIDGE) ................................4-1
4.1.2 TRANSFER ROLLER UNIT..............................................................4-1
4.1.3 SCANNER UNIT...............................................................................4-1
4.1.4 LASER UNIT.....................................................................................4-2
4.1.5 FUSING UNIT...................................................................................4-2
4.1.6 PAPER FEED ...................................................................................4-2
4.1.7 OTHERS...........................................................................................4-2
4.2 SERVICE PROGRAM MODE....................................................................4-3
4.2.1 SERVICE PROGRAM MODE OPERATION.....................................4-3
4.1.2 SERVICE PROGRAM MODE TABLES ............................................4-4
4.1.3 TEST PATTERN PRINTING (SP5-902) .........................................4-38
4.1.4 INPUT CHECK (SP5-803) ..............................................................4-39
4.1.5 OUTPUT CHECK (SP5-804) ..........................................................4-44
4.1.6 COPY JAM HISTORY DISPLAY (SP7-903) ...................................4-46
4.1.7 ORIGINAL JAM HISTORY DISPLAY (SP7-905) ............................4-47
4.1.8 SYSTEM PARAMETER AND DATA LISTS (SP5-992) ..................4-48
4.1.9 MEMORY ALL CLEAR (SP5-801) ..................................................4-49
4.1.10 PROGRAM UPLOAD/DOWNLOAD .............................................4-50
4.1.11 NVRAM DATA DOWNLOAD ........................................................4-53
4.1.12 APS AND PLATEN/DF COVER SENSOR OUTPUT DISPLAY
(SP4-301) .....................................................................................4-55
4.1.13 DF APS SENSOR OUTPUT DISPLAY (SP6-901)........................4-56
4.1.14 DISPLAY LANGUAGE (SP5-808) ................................................4-57
4.1.15 SERIAL NUMBER INPUT (SP5-811) ...........................................4-57
4.3 USER TOOLS .........................................................................................4-58
4.1.1 HOW TO ENTER AND EXIT USER TOOLS ..................................4-58
4.1.2 USER TOOLS TABLE ....................................................................4-58
4.4 LEDS .......................................................................................................4-60
4.5 SPECIAL TOOLS AND LUBRICANTS ....................................................4-60
4.5.1 SPECIAL TOOLS ...........................................................................4-60
4.5.2 LUBRICANTS .................................................................................4-60
4.6 ROM HISTORY ........................................................................................4-61
PREVENTIVE MAINTENANCE
5. PREVENTIVE MAINTENANCE SCHEDULE .............................. 5-1
SM iii
Rev. 01/2001
A250