Ricoh Gestetner 5450, Service Manual, Page: 138 / 315

1 July, 1998 SERVICE REMARKS
4-1
Service
Tables
4. SERVICE TABLES
4.1 SERVICE REMARKS
4.1.1 SCANNER SECTION
1. Xenon Lamp
Do not touch the xenon lamp while it is on, or you might receive a weak electrical
shock.
2. Scanner Wire Installation
A special tool is needed. See “6.5.7 Scanner Wire.”
3. Sensor Board Unit (SBU) Calibration
When the MPU is replaced or the standard white plate located behind the original
scale is replaced, the SBU must be calibrated with SP6-32-1.
4.1.2 MASTER EJECT SECTION
1. Master Pick-up Roller Drive Gear and Master Clamper Drive Arm
Positions
These parts must be positioned correctly. See "6.6.4 Reassembling the Master
Pick-up Roller Drive Gears."
4.1.3 MASTER FEED SECTION
1. Thermal Head 1
When installing the thermal head, there are important points to note. See "Remarks
for Handling the Thermal Head" in "2.2.7 Thermal Head."
2. Thermal Head 2
When replacing the thermal head, be sure to adjust the voltage supplied to the
thermal head (See “6.7.6 Thermal Head Voltage Adjustment”).