HP d640 HP D640 High-Volume Printer - User Manual (Printer and Accessories), C - Page 169

Duplex Area, Transfer Assembly - Transfer LED Areas

Page 169 highlights

Periodic Cleaning (When Replacing Drum) Duplex Area Caution As you clean the duplex unit, avoid wiping the paper sensor from right to left or perpendicular to the paper feeding direction. Wipe the area from left to right. 1. Raise lever 6 and use the supplied cleaning cloths to wipe up any toner or dust off the duplex area in this area, wiping from left to right. Wipe all of the accessible area to ensure a thorough cleaning. See Figure 5-5. Figure 5-5 Cleaning Duplex Area 2. Lower lever 6 to close the duplex unit. 3. Wipe away any paper dust or toner on the upper surface of the duplex unit. Transfer Assembly - Transfer LED Areas To clean the transfer assembly: 1. Use the supplied cleaning cloths or the vacuum cleaner to wipe any toner or dust off the outside of the transfer guide and paper guides. As you handle the transfer assembly, take care not to touch or damage the transfer wire. 2. Pull out gently on Handle 3 to unlatch and release the transfer guide. Gently lower the transfer guide and let it rest on the bottom of the printer's interior. See Figure 5-6. 5-6 Maintenance

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Periodic Cleaning (When Replacing Drum)
5-6
Maintenance
Duplex Area
Caution
As you clean the duplex unit, avoid wiping the paper sensor from right to left or
perpendicular to the paper feeding direction. Wipe the area from left to right.
1.
Raise lever 6 and use the supplied cleaning cloths to wipe up any toner or dust off the
duplex area in this area, wiping from left to right. Wipe all of the accessible area to
ensure a thorough cleaning. See Figure 5-5.
Figure 5-5
Cleaning Duplex Area
2.
Lower lever 6 to close the duplex unit.
3.
Wipe away any paper dust or toner on the upper surface of the duplex unit.
Transfer Assembly - Transfer LED Areas
To clean the transfer assembly:
1.
Use the supplied cleaning cloths or the vacuum cleaner to wipe any toner or dust off the
outside of the transfer guide and paper guides.
As you handle the transfer assembly, take care not to touch or damage the transfer wire.
2.
Pull out gently on Handle 3 to unlatch and release the transfer guide. Gently lower the
transfer guide and let it rest on the bottom of the printer’s interior. See Figure 5-6.