Ricoh FT7770 Service Manual page 305

30 April, '89
<Remark>
PM counter (PMCO)
7-1
<Function>
<Operation>
7-2 ADF priority at AMS (ADF)
<Function>
7-3 Manual cleaning blade off (MBOF)
<Function>
7-4 Cleaning blade off timing (CBOF)
<Function>
CRAM should be used only to initialize a new Ram.
CRAM resets everything as follows:
==> All RESET
SP 1 to 12
==> Empty, nothing set
SP 20 to 24
==> Clock stops
SP 25
Sp 26 to 53
==> Set to all zeros
Weekly timer ==> All clear
User program ==> All clear
After using CRAM, the power should be turned off and
then on again.
This will set some of the SP addres-
ses to default values as follows.
SP 20
==> 60 seconds
SP 21
==> 999 copies
SP 24
==> Infinity
==> Reverts to the date stored in
SP 25
SP 28
==> 000
SP 31 to 34
==> Position 8
All other SP addresses stay
CRAM.
Enables the PM counter.
Causes the wrench mark to blink at the end of the PM
interval. This interval can be set at 100, 120, or
140 K copies by SP #27.
when the wrench mark blinks.
reset by SP #49.
ADF mode is selected when the AMS mode is selected.
At "Reset" position, SADF is selected.
Manually releases the cleaning blade.
When "Set" is selected, the cleaning blade is
released every 250 copies when the main motor
stops.
When "Reset" is selected, the cleaning blade is
released in either of the following cases:
1. After every 100 copies (when the main motor
stops).
2. When no copies have been made and no keys on
the operation panel have been pressed for 15
minutes.
5-92
the EPROM
as they were after
The copier can be operated
The wrench mark is