Xerox WorkCentre Pro 423 Service Manual

Also see for WorkCentre Pro 423: Scanner guide Fax guide Brochure & specs Fax guide User guide

03/02 1.1 TrimmingWorkCentre 423/428 1-3 CHAPTER 1 SERVICE CALL PROCEDURE1.1 TrimmingPerform trimming on WorkCentre Pro 423/428 at eachservice call. This helps tomaintain optimum machine performance.1.1.1 Trimming Procedure1. Pre-work checkl Make several copies of the test chart (499T247) and check the copy quality.l Make a black copy (Chain: 23, Function: 11) and a blank copy (Chain: 23,Function: 10) in Diagnostic. (C/E) mode.Black copy: Check for no darknessirregularity or fusing fault.Blank copy: Check for no drum scratch or smearing.2. Machine internal cleaningl Wipe off toner and paper dust from the paper path. (Clean the operatingsection especially well.)3. IIT cleaningl Clean the platen glass (front surface) and platen cushion with a lint-freecloth.l Clean the reflector, platen glass (back surface), mirror, and lens with a lint-free cloth.4. DADF cleaningl Clean the Pickup Roll, Separation Roll, and Platen Glass with a damp cloth.5. Check the history of periodic replacement parts (consumable parts) andreplace necessary parts.l The history can be checked in Diagnostic. (C/E) mode.6. Safety checkl Check the power plug for secure connection and the power cord and plugfor no damage.7. Post-work checkl Check the mechanical operations.l Check the copy quality.l Check the counters.1.1.2 Consumables and consumable partsFor consumables and consumable parts, check the history of copying and feeding attrimming and replace necessary items. The history can be checked in Diag. (C/E)mode. (See Chapter 2, "Diagnostic Mode.")Consumables Replacement interval RemarksDrum Unit 24K prints A message is displayed whenreplacement is due

Consumable parts Replacement interval RemarksTray 1 (Feed Roll) 600K feed After replacement, clear the Tray 1 feedcounter. (Chain:30 Function:6)Tray 1 (Retard Roll) 600K feed After replacement, clear the Tray 1 feedcounter. (Chain:30 Function:6)Tray 2 (Feed Roll) 600K feed After replacement, clear the Tray 2 feedcounter. (Chain:30 Function:7)Tray 2 (Retard Roll) 600K feed After replacement, clear the Tray 2 feedcounter. (Chain:30 Function:7)Tray 3 (Feed Roll) 600K feed After replacement, clear the Tray 3 feedcounter. (Chain:30 Function:8)Tray 3 (Retard Roll) 600K feed After replacement, clear the Tray 3 feedcounter. (Chain:30 Function:8)Tray 4 (Feed Roll) 600K feed After replacement, clear the Tray 4 feedcounter. (Chain:30 Function:9)Tray 4 (Retard Roll) 600K feed After replacement, clear the Tray 4 feedcounter. (Chain:30 Function:9)MSI (Feed Roll) 600K feed After replacement, clear the MSI feedcounter. (Chain:30 Function:12)MSI (Retard Roll) 600K feed After replacement, clear the MSI feedcounter. (Chain:30 Function:12)Fuser Assy 200K copyingBTR 200K copyingConsumable parts Replacing interval RemarksPickup Roll 90K feed Number of sheets scanned by DADF(Chain:30 Function:3)Feed Roll 90K feed Number of sheets scanned by DADF(Chain:30 Function:3Separation pad 90K feed Number of sheets scanned by DADF(Chain:30 Function:3)