Ricoh 3800 Service Repair Manual

Table contents of Ricoh 3800 Manual

* Installation
installation requirements environment machine level machine space requirement power requirements optional unit combinations installation flow chart machne installation optional unit installation
* Preventive Maintenance
user maintenance service maintenance
* Replacement And Adjustment
special tools image adjustment exterior covers laser optics PCU and development unit paper feed transfer and paper transport unit fusing electrical components drive unit
* Troubleshooting
process control error conditions developer initialization result process control self check result service call conditions SC table electrical component defects blow fuse conditions leds (BCU)
* Service Table
service program mode enabling and disabling service program mode printer controller sevice mode remarks service mode menu bit switch programming printer engine service mode input check table output check table test pattern firmware update procedure controller/engine firmware upgrade controller self diagnostics user program mode DIP switches
* Detailed Section Descriptions
overview board structure process control process control self check procedure toner supply control toner near end / toner end detection developer initialization laser exposure laser synchronizing detector dual beam writing LD safety switch automatic line position adjustments photoconductor unit drum charge and quenching drum cleaning waste toner collection waste toner bottle full detection PCU detection development developer agitation toner cartridge detection paper feed image transfer and paper separation fusing paper exit controller controller functions IEEE 1394 interface