Test Pattern Printing; Selecting The Test Pattern - Ricoh A-P4 Service Manual

5. Service Tables

Test Pattern Printing

Test pattern printing is a two-step operation. First, you must do SP2902 to select the pattern that you want
to print. If you select any pattern other than "0:None" under SP2902, this sets the printer in the Test Pattern
Print mode. Second, you must do SP5990 005 to print the pattern.
• You can select any selection under SP5990 to print the selected pattern. However, SP5990 005
(Diagnostic Report) is recommended because it prints only one page. If you select "001", for example,
several copies of the same pattern may print.
• The printer will remain in the Test Pattern Print mode until you leave the SP mode or the printer power
is turned off and on. (If you leave and reenter SP mode or turn the printer off/on, this automatically
reselects "0:None" for SP2902.)
• The normal SMC report lists done with SP5990 will not print until the printer has been released from
the Test Pattern Print mode.
5

Selecting the Test Pattern

Do SP2902 to select the test pattern that you want to print.
To enter the SP mode, press  together (for 5 seconds), release, then press [#Enter].
1.
System Ver.1.00
1. Service
Press .
2.
System Ver. 1.00
2. Engine
3. Press [#Enter].
<Engine>
1. Feed
4. Press .
<Engine>
2. Drum
5. Press [#Enter].
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Charge Roll Bias
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