Front￿Panel Keys in Service Mode

Pressing any single front0panel key in service mode performs the same operation as in normal mode. However, in service mode, you can also use combinations of keys, to perform the various service tests and calibrations. With this intent, the Replot key acts as a SHIFT key, and the Cancel key acts as an ALT key.

The following illustration indicates which service tests and calibrations are assigned to which front0panel keys. A front0panel overlay is provided with this manual; you can place it over the actual keys on the plotter. The designation of keys for service tests is also shown on the service configuration plot.

 

Bail Sensor

Bail Cycle

 

Bail

 

 

 

￿i￿h ￿￿￿

 

Test

 

 

Test

Calibration

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Service

Electrical

Accuracy

 

 

 

￿i￿h ￿￿￿￿￿

 

Configuration

 

 

Test

Calib. Print

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 



 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Service Monitor

 

 

 

 

 

 

 

 

 

 

 

 

 

with Shift + Alt

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 



 

 

 

 

 

 

 

Servo/Encoder

Setup-Sheet

Media-Sensor

 

￿i￿h ￿￿￿

Test

Calibration

Calibration

 

 

 

 

 

 

 

 

 

Accuracy

Input/Output

Stepper

 

￿i￿h ￿￿￿￿￿

Calib. Read

Test

Motor Test

 

 

 

 

 

 

 

 

 

 

 

To check whether a DesignJet 220 plotter is in service mode, press the ALT and SHIFT keys together, and then release them. If the plotter is in service mode, four LEDs ￿Draft, Final, Paper and Transl/Vellum￿ flash. Press any key and they stop flashing.

Performing Tests and Calibrations

The general procedure to perform a service test or calibration is as follows:

￿Once in service mode (see previous page), hold down the SHIFT or ALT key, whichever is appropriate for the service test you want to perform.

￿Without releasing the SHIFT or ALT key, press the key corresponding to the service test or calibration you want to perform.

￿Release the keys once the Busy LED lights up.

Procedures specific to each calibration are given on the following pages. (Service tests  chapter 8.)

C3187090000

Calibrations 703￿