Service manual

S-21
4-4. Setting in the Tech. Rep. Mode
(1) Function
• This function allows the Tech. Rep. to make the various function tests and adjustments.
<Functions>
Printer: Used for making the various function tests and adjustments for the printer.
Image Memory: Used for making the various function tests and adjustments for image
memory.
Touch Panel
Display
Operation
F1:
Paper Passage
A check is made for paper passage performance.
<Procedure>
1. Select the paper source.
2. Touch “Duplex” for paper passage output on paper fed from the
Duplex Unit.
3. Press the Start key to start the paper passage cycle.
4. Press the Stop key to stop the paper passage cycle.
F2: HV Output This test is for factory adjustment only and should NOT be used.
F5: AIDC Sensor Adjusts the output level of the AIDC Sensor.
✽ For details, see DIS/REASSEMBLY, ADJUSTMENT.
F8: ATDC Sensor Adjusts the output level of the ATDC Sensor.
✽ For details, see DIS/REASSEMBLY, ADJUSTMENT.
F12: Test Pattern Outputs the test pattern.
<Procedure>
1. Touch “Duplex” for test pattern output on paper fed from the
Duplex Unit.
2. Select the test pattern type.
3. Select the paper source.
4. Press the Start key to start the output sequence.
5. Press the Stop key to stop the output sequence.
Opt. Men. Check Checks for the connection of optional memory.
Display Type Display Type
F12-0 Dots F12-5 ID self printing
F12-1 Gradation F12-6 Double dots
F12-2 Halftone F12-7 45° slant line
F12-3 64-dot checkered F12-8 2-dot line pair
F12-4 Solid black F12-9
LD beam position
correction