- HP Printer User Manual

ENWW iii
Contents
1 HCI overview
Q3637A/Q3638A product specifications . . . . . . . 2
Functions. . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Machine data. . . . . . . . . . . . . . . . . . . . . . . .2
Maintenance . . . . . . . . . . . . . . . . . . . . . . . .2
Operating environment . . . . . . . . . . . . . . . . 2
Center cross-sectional drawing. . . . . . . . . . . . . . 3
Drive system drawing . . . . . . . . . . . . . . . . . . . . . 4
Paper feed drive section . . . . . . . . . . . . . . . 4
Stacked paper up/down wire drive
section. . . . . . . . . . . . . . . . . . . . . . . . .5
2 HCI unit explanation
Paper feed section . . . . . . . . . . . . . . . . . . . . . . . 8
Composition . . . . . . . . . . . . . . . . . . . . . . . . 8
Mechanisms . . . . . . . . . . . . . . . . . . . . . . . . 8
First paper feed control . . . . . . . . . . . . . . . 10
Up/down plate drive control. . . . . . . . . . . . 12
Remaining paper detection/no paper
detection control . . . . . . . . . . . . . . . . 13
3 HCI disassembly/assembly
Explanation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Paper feed section . . . . . . . . . . . . . . . . . . . . . . 16
Cleaning the paper dust removing
brush . . . . . . . . . . . . . . . . . . . . . . . . . 16
Cleaning the HCI feed PS (PS106)/
HCI first paper feed PS (PS107). . . . 17
Removing and reinstalling the pick
roller unit . . . . . . . . . . . . . . . . . . . . . . 17
Replacing the pick roller rubber/feed
roller rubber. . . . . . . . . . . . . . . . . . . . 18
Replacing the separation roller rubber . . . 19
Replacing the HCI feed MC (MC101)/
HCI first paper feed MC (MC102) . . . 20
Replacing the Q3637A up/down wires . . . 21
Replacing the Q3638A up/down wires . . . 25
Index
Contents