Ricoh Aficio 220 - Page 18

A265/A267 viii SM
SC921: EMB (Copier feature expander) hardware error.................... 7-15
SC980: Program loading error ........................................................... 7-15
SC990: Communication error between BICU and IOB....................... 7-15
SC999: Program version error ........................................................... 7-15
7.2 PAPER FEED TROUBLESHOOTING .................................................... 7-16
7.3 SKEWED IMAGE.................................................................................... 7-17
7.4 TONER DENSITY................................................................................... 7-18
7.4.1 ADJUST THE TONER DENSITY CONTROL ................................ 7-18
If the toner density is too low.............................................................. 7-18
If the toner density is too high ............................................................ 7-18
7.4.2 DIRTY BACKGROUND ................................................................. 7-18
7.5 ELECTRICAL COMPONENT DEFECTS................................................ 7-19
7.5.1 SENSORS ..................................................................................... 7-19
7.5.2 SWITCHES.................................................................................... 7-21
7.6 BLOWN FUSE CONDITIONS................................................................. 7-22
AUTO RECIRCULATING DOCUMENT FEEDER A858
1. OVERALL MACHINE INFORMATION......................................... 8-1
1.1 SPECIFICATIONS.................................................................................... 8-1
1.2 MECHANICAL COMPONENT LAYOUT................................................... 8-2
1.3 ELECTRICAL COMPONENT LAYOUT .................................................... 8-3
1.4 ELECTRICAL COMPONENT DESCRIPTION.......................................... 8-4
1.5 DRIVE LAYOUT ....................................................................................... 8-5
2. DETAILED SECTION DESCRIPTIONS .......................................8-6
2.1 ORIGINAL SIZE DETECTION.................................................................. 8-6
1.2 PICK-UP AND SEPARATION................................................................... 8-9
1.3 ORIGINAL TRANSPORT AND EXIT ...................................................... 8-10
1.3.1 SINGLE-SIDED ORIGINALS ......................................................... 8-10
1.3.2 DOUBLE-SIDED ORIGINALS........................................................ 8-11
1.3.3 ORIGINAL TRAILING EDGE SENSOR......................................... 8-12
1.4 STAMP ................................................................................................... 8-13
1.5 TIMING CHARTS.................................................................................... 8-14
1.5.1 LT SIDEWAYS (SINGLE-SIDED ORIGINAL MODE) .................... 8-14
1.5.2 LT SIDEWAYS STAMP MODE
(SINGLE-SIDED ORIGINAL MODE)......................................... 8-15
1.5.3 LT SIDEWAYS (DOUBLE-SIDED ORIGINAL MODE)................... 8-16
1.5.4 LT SIDEWAYS STAMP MODE
(DOUBLE-SIDED ORIGINAL MODE) ....................................... 8-17
1.6 CONDITION OF JAM DETECTION........................................................ 8-18
1.7 OVERALL ELECTRICAL CIRCUIT......................................................... 8-19
3. REPLACEMENT AND ADJUSTMENT.......................................8-20
3.1 DF EXIT TABLE AND COVER ............................................................... 8-20
3.2 ORIGINAL FEED UNIT........................................................................... 8-21
3.3 LEFT COVER ......................................................................................... 8-22
Rev. 04/2000