Hcf Control - Xerox DocuPrint N24 Service Manual

8.4.6.2 HCF Control

High Capacity Feeder Control is a broad term that is used to describe the printer resources that monitor and control
the actions and operations of the printer and the HCF; from paper feed to error detection.
The center of HCF control is the HCF Drive PWB. The Printer Engine Controller PWB provides the logic and
information processing that is necessary for the printer to function, and the HCF Drive PWB provides the logic and
information processing that is necessary for the HCF to function. Every electrical component within the HCF is
connected to the HCF Drive PWB. Sensors in the HCF send paper feed status information to the HCF Drive PWB.
The HCF Drive PWB processes that information, shares it with the Printer Engine Controller PWB, and compares it
to timing tables stored in ROM. Acting on the results of the processing, the HCF Drive PWB sends commands to
the various HCF components; switching on a motor or switching off a feed clutch.
HFC Control Components
The HCF Control is made up of several major components.
1 HCF Drive PWB
The HCF Drive PWB controls all HCF functions, executes commands sent from the Printer
Engine Controller PWB, and sends information back to the Printer Engine Controller PWB. All
HCF components are connected directly to the HCF Drive PWB.
2 L/H Interlock Switch
Monitors the Left Cover position.
3 Feed Motor
Provides most of the mechanical drive for the HCF.
4 Lift Up Motor 3
Raises the paper tray in Feeder 3.
5 Lift Up Motor 4
Raises the paper tray in Feeder 4.
6 Lift Up Motor 5
Raises the paper tray in Feeder 5.
7 Feed Clutch 3
Transmits Feed Motor drive to the Tray 3 Feed Rolls.
8 Feed Clutch 4
Transmits Feed Motor drive to the Tray 4 Feed Rolls.
9 Feed Clutch 5
Transmits Feed Motor drive to the Tray 5 Feed Rolls.
10 Tray 3 Take Away Sensor
Monitors paper travel from the HCF arriving at the Take Away Rolls in Feeder 3.
11 Tray 4 Take Away Sensor
Monitors paper travel from the HCF arriving at the Take Away Rolls in Feeder 4.
Options
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