Chapter 1515-5215.19.5 Scan Test ((2) SCAN TEST) 0017-6197iR2022i / iR2025 / iR2030 / iR2018 / iR2022 / iR2018iScan test ((2) SCAN TEST)Press the numeric keypad key 2 on the test mode menu to select the CCD test.Press numeric keypad keys 1, 3 and 4 during the CCD test to carry out the individual tests described below.Numeric keypad key 1Corrects the LED output of the contact sensor and sets its parameters automatically. (AGC adjustment)Numeric keypad key 3Adjusts the document scan position (only on models with the ADF feature installed). Adjusts the position of the contact sensor for scanning documents fed fromthe ADF automatically.Numeric keypad key 4Detects trash at reader scan positions A/B/C.Pos A: Reference read positionPos B: About 0.5 mm inside of the roller from the reference positionPos C: About 1.0 mm inside of the roller from the reference position15.19.6 Print Test ((3) PRINT TEST) 0017-6198iR2022i / iR2025 / iR2030 / iR2018 / iR2022 / iR2018iPrint test ((3) PRINT TEST)Press the numeric keypad key 3 on the test mode menu to select the print test.Press numeric keypad keys 2 and 4 during the print test to generate test patterns as described below. Two kinds of service test patterns are available. Other testpatterns are reserved for factory/development purposes.Numeric keypad key 2(2) BLACK: All-black outputNumeric keypad key 4(4) ENDURANCE: Black belt outputTo cancel test printing, press the stop key.F-15-1815.19.7 Modem Test ((4) MODEM TEST) 0017-6199iR2022i / iR2025 / iR2030 / iR2018 / iR2022 / iR2018iMODEM test((4) MODEM TEST)These tests test modem and NCU transmission and reception. The modem tests check whether signals are sent correctly from the modem by comparing the soundof the signals from the speaker with the sounds from a normal modem.End this test by pressing the Stop key.Relay TestKeypad Type Description1 Relay test Use it to turn on/off a selected relay to execute a switch-over test2 Frequency test The modem sends tonal signals from the modular jack and the speaker.4 G3 signal transmission test The modem sends G3 signals from the modular jack and the speaker.5 DTMF signal reception test Use it to generate the DTMF signal coming from the modem using thetelephone line terminal and the speaker.6 Tonal signal reception test Use it to monitor a specific frequency and the DTMF signal received fromthe telephone line terminal by causing them to be indicated on the LCD (i.e.,the presence/absence as detected). The reception signal is generated by thespeaker.8 V.34 G3 signal transmission test The modem sends V.34 G3 signals from the modular jack and the speaker.Use it to make sure that the printpattern does not have white linesor uneven image.Use it to make sure that the printpattern does not have contraction/elongation of an image or dirt/blackline.s