HP 3390 Service Manual - Page 189
Pickup-and-feed assemblies, Transfer roller
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Pickup-and-feed assemblies This section covers the major assemblies of the pickup-and-feed system: the transfer roller and the registration assembly. For information about replacing the tray 2 pickup roller, see Replacing the tray 2 pickup roller on page 42. For information about replacing the tray 2 or tray 3 separation pad, see Replacing the tray 2 and optional tray 3 separation pad on page 47. For information about replacing the ADF pickup roller, see Replacing the ADF pickup-roller assembly on page 50. Transfer roller NOTE Make sure that the transfer roller needs to be replaced before you remove it. Excess handling can cause additional damage. 1. Remove the print cartridge. See Remove the print cartridge on page 113. 2. Use needle-nose pliers to release the transfer roller tabs at the end of the roller, near the right side of the all-in-one. CAUTION Do not break the tabs and do not touch the roller. Figure 5-76 Remove the transfer roller 3. Lift up the end of the roller near the right side of the all-in-one, and then slide it toward the right side of the all-in-one while pulling it out of the all-in-one. ENWW Internal assemblies 167