Continuity Check On Hvps/Cartridge - Ricoh infoprint 1222 Service Manual

Infoprint 1222
6. Par S strobe adjustment for the parallel port can be set to
four additional settings in addition to the default setting.
Pull–up resistors are only enabled indicating parallel mode 1 is
not supported. (Parallel mode 2 is supported and can be turned
off or on in the configuration mode.) Adjustments may have to
be made if an unusually long parallel cable is being used.
7. Network settings for Mark History, History mode, Optra Forms™
mode, and Meditech mode can be set.
– A service error history report (network) can be printed.
– Dump NVRAM prints a hex dump of the NVRAM partition
and the re–init NVRAM resets the network NVRAM to the
factory defaults.

Continuity Check on HVPS/Cartridge

Continuity between the HVPS and the charge roll, Dr. B (blade), TAR
(toner adder roll), the developer roll, and the photoconductor (DC)
can be checked as follows:
1. Turn printer off.
2. Remove the right side cover. See
Removal" on page 4-10
3. Remove the toner cartridge.
4. Check from C on the HVPS to the bearing on the left side of the
charge roll. See
5. Check from the Dr. B, TAR, DEV, T, and DC (photoconductor)
respectively to the corresponding pin on the right side frame
where the toner cartridge makes its contacts.
If any show discontinuity, remove the HVPS and check the cartridge
contact assemblies (springs) for continuity and damage. If the
charge roll and the cable at C show discontinuity, replace the left
guide assembly. See
page 5-12 for testing the PCB.
for more information.
page 5-12 for more information.
"High Voltage Power Supply (HVPS)" on
"Right Side Cover
Diagnostic Aids
3-7